TY - JOUR T1 - Evaluating sensitivity of complex electrical methods for monitoring CO (sub 2) intrusion into a shallow groundwater system and associated geochemical transformations AN - 959100031; 2012-035997 AB - A risk factor of CO2 storage in deep geological formations includes its potential to leak into shallow formations and impact groundwater geochemistry and quality. In particular, CO2 decreases groundwater pH, which can potentially mobilize naturally occurring trace metals and ions commonly absorbed to or contained in sediments. Here, geophysical studies (primarily complex electrical method) are being carried out at both laboratory and field scales to evaluate the sensitivity of geophysical methods for monitoring dissolved CO2 distribution and geochemical transformations that may impact water quality. Our research is performed in association with a field test that is exploring the effects of dissolved CO2 intrusion on groundwater geochemistry. Laboratory experiments using site sediments (silica sand and some fraction of clay minerals) and groundwater were initially conducted under field relevant CO2 partial pressures (pCO2). A significant pH drop was observed with inline sensors with concurrent changes in fluid conductivity caused by CO2 dissolution. Electrical resistivity and electrical phase responses correlated well with the CO2 dissolution process at various pCO2. Specifically, resistivity decreased initially at low pCO2 condition resulting from CO2 dissolution followed by a slight rebound because of the transition of bicarbonate into non-dissociated carbonic acid at lower pH slightly reducing the total concentration of dissociated species. Continuous electrical phase decreases were also observed, which are interpreted to be driven by the decrease of surface charge density (due to the decrease of pH, which approaches the PZC of the sediments). In general, laboratory experiments revealed the sensitivity of electrical signals to CO2 intrusion into groundwater formations and can be used to guide field data interpretation. Cross well complex electrical data are currently being collected periodically throughout a field experiment involving the controlled release of dissolved CO2 into groundwater. The objective of the geophysical cross well monitoring effort is to evaluate the sensitivity of complex electrical methods to dissolved CO2 at the field scale. Here, we report on the ability to translate laboratory-based petrophysical information from lab to field scales, and on the potential of field complex electrical methods for remotely monitoring CO2-induced geochemical transformations. JF - American Geophysical Union Fall Meeting AU - Dafflon, B AU - Wu, Y AU - Hubbard, S S AU - Birkholzer, J T AU - Daley, T M AU - Pugh, J D AU - Peterson, J AU - Trautz, R C AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC41E EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - water quality KW - carbon sequestration KW - geophysical methods KW - electrical methods KW - resistivity KW - ions KW - carbon dioxide KW - aquifers KW - dissolved materials KW - carbon KW - shallow aquifers KW - trace metals KW - chemical composition KW - pH KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959100031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluating+sensitivity+of+complex+electrical+methods+for+monitoring+CO+%28sub+2%29+intrusion+into+a+shallow+groundwater+system+and+associated+geochemical+transformations&rft.au=Dafflon%2C+B%3BWu%2C+Y%3BHubbard%2C+S+S%3BBirkholzer%2C+J+T%3BDaley%2C+T+M%3BPugh%2C+J+D%3BPeterson%2C+J%3BTrautz%2C+R+C%3BAnonymous&rft.aulast=Dafflon&rft.aufirst=B&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=fm11&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=an%3dgc41e&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c1000%7c4976%7cEvaluating%20sensitivity%20of%20complex%20electrical%20methods%20for%20monitoring%20CO2%20intrusion%20into%20a%20shallow%20groundwater%20system%20and%20associated%20geochemical%20transformations%7cHTML%7clocalhost:0%7c%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c27377695%2027382671%20%2fdata2%2fepubs%2fwais%2fdata%2ffm11%2ffm11.txt LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; carbon; carbon dioxide; carbon sequestration; chemical composition; dissolved materials; electrical methods; geophysical methods; hydrology; ions; pH; resistivity; shallow aquifers; trace metals; water quality ER - TY - JOUR T1 - Atmospheric impact of large methane emission in the Arctic region AN - 959099418; 2012-035978 AB - A highly potent greenhouse gas, methane, is locked in the solid phase as ice-like deposits containing a mixture of water and gas (mostly methane) called clathrates, in ocean sediments and underneath permafrost regions. Clathrates are stable under high pressure and low temperatures. Recent estimates suggest that about 1600-2000 GtC of clathrates are present in oceans and 400 GtC in Arctic permafrost (Archer et al.2009) which is about 4000 times that of current annual emissions. In a warming climate, increase in ocean temperatures could alter the geothermal gradient, which in turn could lead to dissociation of the clathrates and release of methane into the ocean and subsequently into the atmosphere as well. This could be of particular importance in the shallow part of the Arctic Ocean where the clathrates are found in depths of only 300 m. In this presentation, we shall show results from our ongoing simulation of a scenario of large scale methane outgassing from clathrate dissociation due to warming ocean temperatures in the Arctic based on ocean sediment modeling. To that end we use the CESM (Community Earth System Model) version 1 with fully active coupled atmosphere-ocean-land model together with fast atmospheric chemistry module to simulate the response to increasing methane emissions in the Barents Sea, Canadian Archipelago and the Sea of Okhotsk. The simulation shows the effect these methane emissions could have on global surface methane, surface ozone, surface air temperature and other related indices. JF - American Geophysical Union Fall Meeting AU - Bhattacharyya, S AU - Cameron-Smith, P J AU - Bergmann, D AU - Reagan, M T AU - Collins, W AU - Elliott, S M AU - Maltrud, M E AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC41B EP - 0803 PB - American Geophysical Union, Washington, DC VL - 2011 KW - permafrost KW - gas hydrates KW - Arctic Archipelago KW - aliphatic hydrocarbons KW - West Pacific KW - temperature KW - Okhotsk Sea KW - atmospheric circulation KW - marine sediments KW - Barents Sea KW - Nunavut KW - sediments KW - Arctic Ocean KW - Northwest Pacific KW - chemical composition KW - soils KW - methane KW - Arctic region KW - atmosphere KW - alkanes KW - clathrates KW - organic compounds KW - Canada KW - North Pacific KW - Pacific Ocean KW - hydrocarbons KW - air KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099418?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Atmospheric+impact+of+large+methane+emission+in+the+Arctic+region&rft.au=Bhattacharyya%2C+S%3BCameron-Smith%2C+P+J%3BBergmann%2C+D%3BReagan%2C+M+T%3BCollins%2C+W%3BElliott%2C+S+M%3BMaltrud%2C+M+E%3BAnonymous&rft.aulast=Bhattacharyya&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - air; aliphatic hydrocarbons; alkanes; Arctic Archipelago; Arctic Ocean; Arctic region; atmosphere; atmospheric circulation; Barents Sea; Canada; chemical composition; clathrates; gas hydrates; hydrocarbons; marine sediments; methane; North Pacific; Northwest Pacific; Nunavut; Okhotsk Sea; organic compounds; Pacific Ocean; permafrost; sediments; soils; temperature; West Pacific ER - TY - JOUR T1 - An assessment of the carbon balance of Arctic tundra; comparisons among observations, process models, and atmospheric inversions AN - 959096411; 2012-036003 AB - Although Arctic tundra has been estimated to cover only 8% of the global land surface, the large and potentially volatile carbon pools currently stored in Arctic soils have the potential for large emissions of radiatively active greenhouse gases in the form of both CO2 and CH4 under warmer conditions, resulting in a positive feedback to global warming. Given the potential sensitivity of Arctic tundra to climate change and the expectation that the Arctic will experience appreciable warming over the next century, it is important to assess whether responses of carbon storage in Arctic tundra are likely to enhance or mitigate warming. In this analysis we compare estimates of carbon dynamics of Arctic tundra between 1990 and the late 2000s among observations, process-based models, and inversion models. A synthesis of compiled flux observations for Arctic tundra indicates that the annual exchange of CO2 cannot be distinguished from neutral balance across the range of studies that have been conducted. The process-based models indicate that the net ecosystem production of Arctic tundra ranged between 10 and 30 g C m-2 yr-1 from 1990-2006. Only one of the process-based models estimates that NEP is increasing in the 1990s and 2000s. Three of the four process-based models have a similar range of interannual variability in GPP, NPP, RH, and NEP. GPP, NPP, and RH are generally well correlated among the models, but the interannual variability in NEP is poorly correlated among the models. JF - American Geophysical Union Fall Meeting AU - McGuire, A D AU - Christensen, Torben R AU - Hayes, D J AU - Heroult, Arnaud AU - Kimball, John S AU - Koven, C D AU - Lafleur, P AU - Miller, Paul AU - Oechel, W C AU - Sitch, S AU - Williams, Mat D AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC41F EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - soils KW - methane KW - tundra KW - Arctic region KW - aliphatic hydrocarbons KW - atmosphere KW - global change KW - alkanes KW - climate change KW - geochemical cycle KW - carbon dioxide KW - models KW - organic compounds KW - carbon KW - hydrocarbons KW - greenhouse gases KW - carbon cycle KW - global warming KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959096411?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=An+assessment+of+the+carbon+balance+of+Arctic+tundra%3B+comparisons+among+observations%2C+process+models%2C+and+atmospheric+inversions&rft.au=McGuire%2C+A+D%3BChristensen%2C+Torben+R%3BHayes%2C+D+J%3BHeroult%2C+Arnaud%3BKimball%2C+John+S%3BKoven%2C+C+D%3BLafleur%2C+P%3BMiller%2C+Paul%3BOechel%2C+W+C%3BSitch%2C+S%3BWilliams%2C+Mat+D%3BAnonymous&rft.aulast=McGuire&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Arctic region; atmosphere; carbon; carbon cycle; carbon dioxide; climate change; geochemical cycle; global change; global warming; greenhouse gases; hydrocarbons; methane; models; organic compounds; soils; tundra ER - TY - JOUR T1 - Seismic signatures of supercritical CO (sub 2) injection/drainage within brine saturated sandstone samples AN - 959096327; 2012-036000 AB - Successful sequestration of CO2 in geological formations requires high-resolution monitoring of injected CO2 location and accurate determination of CO2 saturation in the pore space, typically using seismic methods. Although understanding of the rock physics (relationship between geophysical properties such as seismic velocities and attenuations and the physical characteristics and environmental parameters of rock including porosity and saturation) of partially saturated rock has advanced significantly in recent years, relationships between heterogeneities of rock (both inherent heterogeneity in the rock fabric and structure and distribution of multiple fluid phases in the rock) and its impact on seismic properties are complex and difficult to understand using existing models. Further, most laboratory experiments to date examining the seismic signatures of fluid substitution involving liquid or supercritical (sc-) CO2 have been conducted at ultrasonic frequencies which could result in very different results from field measurements, and also their interpretations are often made assuming sample homogeneity. We present the results of our recent laboratory measurements on the changes in sonic-frequency seismic properties of initially brine saturated sandstone samples during sc-CO2 injection and drainage. High-permeability reference sandstone sample (Berea, approximately 680 mD) and a medium-permeability ( approximately 15 mD) reservoir sandstone used for sequestration (Tuscaloosa formation from Cranfield, Mississippi) were tested. A modified resonant bar method (the Split Hopkinson Resonant Bar method) was used to measure near-1 kHz seismic velocities and attenuations. This method allows us to use small core samples which are typically available from boreholes. Although our measurement frequency was higher than typical field seismic measurements, it is close to the frequencies which have been used for recent cross-hole seismic monitoring of CO2 injection at several sequestration demonstration sites, including Cranfield. Preliminary results show several significant differences in the seismic signatures between the two sandstones. For example, the higher-permeability Berea sandstone exhibited a sharp peak in P-wave attenuation during sc-CO2 injection, before the breakthrough of the CO2 through the core sample occurred. In contrast, the lower-permeability Cranfield reservoir sandstone exhibited nearly monotonic increases in attenuation and no recovery in seismic amplitude during sc-CO2 injection. These differences are attributed to the differences in the scale of wave-induced diffusive pressure waves (slow P waves) and the fluid patch sizes between the two samples. JF - American Geophysical Union Fall Meeting AU - Nakagawa, S AU - Kneafsey, T J AU - Rees, E V AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC41E EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - North America KW - carbon sequestration KW - Cretaceous KW - Mississippi KW - sandstone KW - elastic waves KW - Gulf Coastal Plain KW - Upper Cretaceous KW - Mesozoic KW - climate change KW - reservoir rocks KW - carbon dioxide KW - attenuation KW - Adams County Mississippi KW - sedimentary rocks KW - Cranfield Mississippi KW - brines KW - seismic waves KW - Tuscaloosa Formation KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959096327?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Seismic+signatures+of+supercritical+CO+%28sub+2%29+injection%2Fdrainage+within+brine+saturated+sandstone+samples&rft.au=Nakagawa%2C+S%3BKneafsey%2C+T+J%3BRees%2C+E+V%3BAnonymous&rft.aulast=Nakagawa&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=fm11&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=an%3dgc41e&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c1000%7c4261%7cSeismic%20signatures%20of%20supercritical%20CO2%20injection%2fdrainage%20within%20brine%20saturated%20sandstone%20samples%20%3ci%3e%28Invited%29%3c%2fi%3e%7cHTML%7clocalhost:0%7c%2fdata%2fepubs%2fwais%2findexes%2ffm11%2ffm11%7c27389020%2027393281%20%2fdata2%2fepubs%2fwais%2fdata%2ffm11%2ffm11.txt LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2012-06-07 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Adams County Mississippi; attenuation; brines; carbon dioxide; carbon sequestration; clastic rocks; climate change; Cranfield Mississippi; Cretaceous; elastic waves; Gulf Coastal Plain; Mesozoic; Mississippi; North America; reservoir rocks; sandstone; sedimentary rocks; seismic waves; Tuscaloosa Formation; United States; Upper Cretaceous ER - TY - JOUR T1 - Monitoring the geologic storage of carbon dioxide using multi-component SAR interferometry AN - 959096041; 2012-035998 AB - Combining interferometric synthetic aperture radar (InSAR) data from ascending and descending orbits we are able to estimate both vertical and across-track horizontal displacements for a region in Algeria. The area encompasses an active, large-scale carbon dioxide storage project and the surface deformation associated with the injection is clearly visible in the InSAR estimates. We find that the addition of horizontal displacement data enables us to discriminate between source models. In particular, predictions from a model consisting of a distribution of volume changes solely within the reservoir does not match the across-track horizontal displacement data. However, aperture changes on three sub-vertical damage zones do lead to predictions of vertical and horizontal displacements that match the observations. Thus, the hypothesized damage zones appear to play a role in the flow of carbon dioxide at depth. JF - American Geophysical Union Fall Meeting AU - Vasco, D W AU - Rucci, Alessio AU - Novali, Fabrizio AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC41E EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - monitoring KW - carbon sequestration KW - North Africa KW - radar methods KW - geodesy KW - satellite methods KW - interferometry KW - climate change KW - carbon dioxide KW - SAR KW - Africa KW - InSAR KW - Algeria KW - remote sensing KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959096041?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Monitoring+the+geologic+storage+of+carbon+dioxide+using+multi-component+SAR+interferometry&rft.au=Vasco%2C+D+W%3BRucci%2C+Alessio%3BNovali%2C+Fabrizio%3BAnonymous&rft.aulast=Vasco&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Africa; Algeria; carbon dioxide; carbon sequestration; climate change; geodesy; InSAR; interferometry; monitoring; North Africa; radar methods; remote sensing; SAR; satellite methods ER - TY - JOUR T1 - Analytical solution for two-phase flow in a wellbore using the drift-flux model AN - 911160422; 16077568 AB - This paper presents analytical solutions for steady-state, compressible two-phase flow through a wellbore under isothermal conditions using the drift flux conceptual model. Although only applicable to highly idealized systems, the analytical solutions are useful for verifying numerical simulation capabilities that can handle much more complicated systems, and can be used in their own right for gaining insight about two-phase flow processes in wells. The analytical solutions are obtained by solving the mixture momentum equation of steady-state, two-phase flow with an assumption that the two phases are immiscible. These analytical solutions describe the steady-state behavior of two-phase flow in the wellbore, including profiles of phase saturation, phase velocities, and pressure gradients, as affected by the total mass flow rate, phase mass fraction, and drift velocity (i.e., the slip between two phases). Close matching between the analytical solutions and numerical solutions for a hypothetical CO2 leakage problem as well as to field data from a CO2 production well indicates that the analytical solution is capable of capturing the major features of steady-state two-phase flow through an open wellbore, and that the related assumptions and simplifications are justified for many actual systems. In addition, we demonstrate the utility of the analytical solution to evaluate how the bottomhole pressure in a well in which CO2 is leaking upward responds to the mass flow rate of CO2-water mixture. JF - Advances in Water Resources AU - Pan, Lehua AU - Webb, Stephen W AU - Oldenburg, Curtis M AD - Lawrence Berkeley National Laboratory, MS-9016, One Cyclotron Road, Berkeley, CA 94720, USA, LPAN@lbl.gov Y1 - 2011/12// PY - 2011 DA - Dec 2011 SP - 1656 EP - 1665 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 34 IS - 12 SN - 0309-1708, 0309-1708 KW - Environment Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts KW - Water resources KW - Utilities KW - Flow rates KW - Flow Rates KW - Phase velocity KW - Modelling KW - Leakage KW - Mathematical models KW - Velocity KW - Simulation KW - Saturation KW - Multiphase Flow KW - Model Studies KW - Numerical simulations KW - Profiles KW - Carbon dioxide KW - Fluctuations KW - Pressure gradients KW - Carbon Dioxide KW - Q2 09403:Chemicals from sea water KW - AQ 00006:Sewage KW - SW 6010:Structures KW - ENA 16:Renewable Resources-Water KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911160422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Analytical+solution+for+two-phase+flow+in+a+wellbore+using+the+drift-flux+model&rft.au=Pan%2C+Lehua%3BWebb%2C+Stephen+W%3BOldenburg%2C+Curtis+M&rft.aulast=Pan&rft.aufirst=Lehua&rft.date=2011-12-01&rft.volume=34&rft.issue=12&rft.spage=1656&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2011.08.009 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Mathematical models; Water resources; Phase velocity; Carbon dioxide; Pressure gradients; Modelling; Numerical simulations; Leakage; Simulation; Velocity; Flow rates; Flow Rates; Profiles; Saturation; Fluctuations; Utilities; Multiphase Flow; Model Studies; Carbon Dioxide DO - http://dx.doi.org/10.1016/j.advwatres.2011.08.009 ER - TY - JOUR T1 - Progress toward understanding of coupled microbiology, biogeochemistry, and hydrogeology controls on subsurface mobility of uranium AN - 1855322143; 2017-002262 AB - Uranium as an anthropogenic environmental contaminant stems from nuclear weapons production and the nuclear fuel cycle for nuclear power generation over the last 65 years. Progress in research, monitoring, and clean up at such sites has resulted in both long-term monitoring and field scale manipulation experimental data that are enabling in-depth understanding of coupling among microbiology, biogeochemistry, and hydrogeology subsurface processes controlling mobility of U. One such site, the U.S. Department of Energy's IFRC at Rifle, CO, has hosted several acetate electron donor amendment and non-biostimulated desorption tracer tests culminating in an experiment in 2010 in which bicarbonate promoted uranium desorption and acetate amendment were combined and compared to an acetate amendment-only experiment in the same experimental plot. Enzymatic U reduction rates were not impacted by the increased abundance of Ca-uranyl-carbonate aqueous complexes in the bicarbonate part of the experiment. However, the importance of changes in bicarbonate on U desorption is clear. Bicarbonate increases during acetate-only field experiments due to microbial activity promote U desorption and this must be accounted for in estimating field-scale reduction rates for U. The Rifle site also has more than a decade of monitoring data that show the plume is attenuating much slower than predicted. Naturally reduced zones at the site indicate that microbially-mediated natural reducing conditions have partially reduced U(VI) to U(IV) and this contributes to plume persistence. However, we are just beginning to explore the full range of biogeochemical processes that will enable us to more accurately predict plume attenuation and that will be needed to either enhance or decrease mobility of U as remedial strategies. JF - American Geophysical Union Fall Meeting AU - Long, P E AU - Williams, K H AU - Davis, J A AU - Banfield, J F AU - Bargar, J AU - Lovley, D R AU - Hatfield, K AU - Wilkins, Michael J AU - Yabusaki, S AU - Murray, Chris J AU - Jaffe, P R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V22B EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - desorption KW - Garfield County Colorado KW - contaminant plumes KW - isotopes KW - Rifle Site KW - hydrogeology KW - ground water KW - controls KW - Rifle Colorado KW - radioactive isotopes KW - tracers KW - nuclear explosions KW - mobility KW - high-level waste KW - toxic materials KW - experimental studies KW - monitoring KW - explosions KW - biochemistry KW - pollution KW - migration of elements KW - bicarbonate ion KW - metals KW - uranium KW - Colorado KW - actinides KW - microbiology KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855322143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Progress+toward+understanding+of+coupled+microbiology%2C+biogeochemistry%2C+and+hydrogeology+controls+on+subsurface+mobility+of+uranium&rft.au=Long%2C+P+E%3BWilliams%2C+K+H%3BDavis%2C+J+A%3BBanfield%2C+J+F%3BBargar%2C+J%3BLovley%2C+D+R%3BHatfield%2C+K%3BWilkins%2C+Michael+J%3BYabusaki%2C+S%3BMurray%2C+Chris+J%3BJaffe%2C+P+R%3BAnonymous&rft.aulast=Long&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2017-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; bicarbonate ion; biochemistry; Colorado; contaminant plumes; controls; desorption; experimental studies; explosions; Garfield County Colorado; ground water; high-level waste; hydrogeology; isotopes; metals; microbiology; migration of elements; mobility; monitoring; nuclear explosions; pollution; radioactive isotopes; Rifle Colorado; Rifle Site; toxic materials; tracers; United States; uranium ER - TY - JOUR T1 - Speciation of uranium in biologically reduced sediments during iron and sulfate reduction in the Old Rifle Aquifer AN - 1855322139; 2017-002268 AB - The persistence and mobility of uranium in groundwater is intimately related to the different biogeochemical conditions found at contaminated sites. Understanding the different U(IV) species, their stability and transformation products in subsurface environments, particularly those found in naturally reduced and bioremediated sediments, is critical to developing field-scale models required to predict the long term fate of this hazardous element. Microbial reduction of U(VI) and subsequent formation uraninite, can occur over a period of several years, but little is known about the structure and stability of intermediate products of U(IV) that can form prior to uraninite generation. The study of these intermediate U(IV) species in naturally reduced systems is challenging because of the limited concentrations of uranium present in these sediments, which makes detailed spectroscopic and microscopic analysis difficult if not impossible. In this study we have developed an in-situ technique for studying U(IV) products of biological U(VI) reduction and their dynamics in aquifers over the scale of days to years. This technique uses in-well columns to obtain direct access to sediment U(IV) species, evolving microbial communities, and trace and major ion groundwater constituents. Whole sediments from these in-situ columns have been examined using x-ray and electron microscopy,and extended x-ray absorption fine structure (EXAFS) spectroscopy. EXAFS measurements revealed that U(IV) was primarily present as monomeric U(IV) species with first-shell coordination to oxygen atoms. Furthermore, different reduced U(IV) products were observed during sulfate and Fe reducing regimes, showing the strong dependence of the reduced product on biogeochemical conditions. This work establishes the importance of non-uraninite forms of U(IV) in subsurface sediments and provides a conceptual framework in which previously observed U(IV) reduction products can be related. JF - American Geophysical Union Fall Meeting AU - Lezama-Pacheco, J S AU - Bargar, J AU - Stubbs, J AU - Bernier-Latmani, Rizlan AU - Suvorova, E AU - Williams, K H AU - Davis, J A AU - Fox, P M AU - Giammar, D AU - Cerrato, J AU - Long, P AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V22B EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - Garfield County Colorado KW - remediation KW - ground water KW - Rifle Colorado KW - sediments KW - oxides KW - reduction KW - sulfate ion KW - in situ KW - sulfates KW - pollution KW - migration of elements KW - bioremediation KW - iron sulfates KW - Old Rifle Aquifer KW - metals KW - uranium KW - transformations KW - Colorado KW - uraninite KW - actinides KW - microorganisms KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1855322139?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Speciation+of+uranium+in+biologically+reduced+sediments+during+iron+and+sulfate+reduction+in+the+Old+Rifle+Aquifer&rft.au=Lezama-Pacheco%2C+J+S%3BBargar%2C+J%3BStubbs%2C+J%3BBernier-Latmani%2C+Rizlan%3BSuvorova%2C+E%3BWilliams%2C+K+H%3BDavis%2C+J+A%3BFox%2C+P+M%3BGiammar%2C+D%3BCerrato%2C+J%3BLong%2C+P%3BAnonymous&rft.aulast=Lezama-Pacheco&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2017-01-01 N1 - PubXState - DC N1 - Last updated - 2017-01-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; bioremediation; chemical fractionation; Colorado; Garfield County Colorado; ground water; in situ; iron sulfates; metals; microorganisms; migration of elements; Old Rifle Aquifer; oxides; pollution; reduction; remediation; Rifle Colorado; sediments; sulfate ion; sulfates; transformations; United States; uraninite; uranium; water quality ER - TY - JOUR T1 - Impact of natural organic matter on uranium transport through saturated geologic materials; from molecular to column scale AN - 1844921517; 2016-099530 AB - The transport of radionuclides within geologic environments is of considerable concern. Actinides migrate in association with mineral particles and organic matter that occur naturally in nearly all groundwaters. The role of mineral colloids in facilitating radionuclide transport has been reported in numerous studies, but the effects of waterborne organic matter on radionuclide mobility have received less attention. In this study, we compared the abilities of three humic acids (HAs) (obtained through sequential extraction of a peat soil) to co-transport uranium (U) within water-saturated sand columns. We also measured kinetics of U desorption from the HAs in separate experiments by using a novel, continuously stirred flow system (CSFS). Maximum relative breakthrough concentrations of U in our column experiments increased from undetectable levels (<0.001) in the absence of HAs to 0.17 to 0.54 with HAs. The strength of the HA effect on U mobility was positively correlated with the NMR-detected content of paraffinic carbon and the hydrophobicity of HAs, which indicates the importance of hydrophobic organic matter in facilitating U transport. Consistently, near-edge X-ray absorption fine structure (NEXAFS) spectra coupled with scanning transmission X-ray microscopy (STXM) show that bound U was concentrated in micro areas of the HA that were composed of more hydrophobic carbon. Further analyses of the breakthrough data together with the data from the CSFS experiments revealed that the rates of U desorption from the HAs decreased with decreasing hydrophobicity of the HAs. This finding suggests that U association with hydrophilic moieties of the HAs was irreversible or very-slowly reversible, possibly due to the formation of strong, inner-sphere surface complexes. Using information gleaned from the CSFS experiments on U-HA interactions, model simulations for U and HA transport indicate that colloidal HAs may play a more important role than dissolved HAs in mobilizing and co-transporting U. Given that these organic substances occur commonly in real groundwaters, descriptions of radionuclide transport should account for interactions between aqueous-phase radionuclides and natural organic matter. Furthermore, the present study has demonstrated the considerable sensitivity of U mobility within water-saturated geologic sediments to the hydrophobicity of pore-water HAs; therefore, we recommend that evaluations of radionuclide transport within subsurface environments consider the chemical characteristics of waterborne organic substances. JF - American Geophysical Union Fall Meeting AU - Yang, Y AU - Saiers, J E AU - Xu, N AU - Shuh, D AU - Tyliszczak, T AU - Barnett, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V23C EP - 2584 PB - American Geophysical Union, Washington, DC VL - 2011 KW - desorption KW - isotopes KW - complexing KW - ground water KW - radioactive isotopes KW - transport KW - sequential extraction KW - sediments KW - molecular dynamics KW - hydrophilic materials KW - breakthrough curves KW - hydrophobic materials KW - soils KW - concentration KW - toxic materials KW - experimental studies KW - colloidal materials KW - solutes KW - pollution KW - porous materials KW - migration of elements KW - peat KW - metals KW - uranium KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844921517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Impact+of+natural+organic+matter+on+uranium+transport+through+saturated+geologic+materials%3B+from+molecular+to+column+scale&rft.au=Yang%2C+Y%3BSaiers%2C+J+E%3BXu%2C+N%3BShuh%2C+D%3BTyliszczak%2C+T%3BBarnett%2C+M%3BAnonymous&rft.aulast=Yang&rft.aufirst=Y&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-01 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; breakthrough curves; colloidal materials; complexing; concentration; desorption; experimental studies; ground water; hydrophilic materials; hydrophobic materials; isotopes; metals; migration of elements; molecular dynamics; peat; pollution; porous materials; radioactive isotopes; sediments; sequential extraction; soils; solutes; toxic materials; transport; uranium ER - TY - JOUR T1 - Structure and reactivity of the uraninite (111) surface AN - 1844921473; 2016-099531 AB - Corrosion of uraninite (UO2)--a surface-mediated process--is fundamental in controlling uranium contamination and mobility in the environment, the performance of nuclear power systems, and the stability of nuclear waste. The structure of hydrated uraninite-water interfaces under pristine and oxidized conditions is seminally important to uraninite corrosion, and thus to nuclear and environmental chemistry. Until now, UO2 surface studies have been limited to vacuum-based techniques, generally conducted at elevated temperatures. UO2 surfaces have not previously been studied in the presence of liquid water. The crystal truncation rod (CTR) X-ray diffraction method is ideally suited to such measurements, as it specifically probes structures at two-dimensional interfaces. The (111) surface structure of single-crystal synthetic UO2 has been measured under both dry and hydrated conditions. Even during nominally anaerobic handling, a nanometer-dimensioned layer of UO2+x can form, which is structurally commensurate with the underlying UO2. This overlayer can be partially dissolved by exposure to liquid water, consistent with the relatively high solubility of oxidized uranium. JF - American Geophysical Union Fall Meeting AU - Stubbs, J AU - Eng, P J AU - Waychunas, G A AU - Bargar, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V23C EP - 2585 PB - American Geophysical Union, Washington, DC VL - 2011 KW - corrosion KW - oxidation KW - solutes KW - pollution KW - mineral-water interface KW - power plants KW - solubility KW - radioactive waste KW - hydration KW - nuclear energy KW - metals KW - oxides KW - anaerobic environment KW - uranium KW - waste disposal KW - uraninite KW - actinides KW - mineral surface KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1844921473?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Structure+and+reactivity+of+the+uraninite+%28111%29+surface&rft.au=Stubbs%2C+J%3BEng%2C+P+J%3BWaychunas%2C+G+A%3BBargar%2C+J%3BAnonymous&rft.aulast=Stubbs&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-12-01 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; anaerobic environment; corrosion; hydration; metals; mineral surface; mineral-water interface; nuclear energy; oxidation; oxides; pollution; power plants; radioactive waste; solubility; solutes; uraninite; uranium; waste disposal ER - TY - JOUR T1 - 3D frequency modeling of elastic seismic wave propagation via a structured massively parallel direct Helmholtz solver AN - 1824216398; 2016-084056 AB - We consider the modeling of elastic seismic wave propagation on a rectangular domain via the discretization and solution of the inhomogeneous coupled Helmholtz equation in 3D, by exploiting a parallel multifrontal sparse direct solver equipped with Hierarchically Semi-Separable (HSS) structure to reduce the computational complexity and storage. In particular, we are concerned with solving this equation on a large domain, for a large number of different forcing terms in the context of seismic problems in general, and modeling in particular. We resort to a parsimonious mixed grid finite differences scheme for discretizing the Helmholtz operator and Perfect Matched Layer boundaries, resulting in a non-Hermitian matrix. We make use of a nested dissection based domain decomposition, and introduce an approximate direct solver by developing a parallel HSS matrix compression, factorization, and solution approach. We cast our massive parallelization in the framework of the multifrontal method. The assembly tree is partitioned into local trees and a global tree. The local trees are eliminated independently in each processor, while the global tree is eliminated through massive communication. The solver for the inhomogeneous equation is a parallel hybrid between multifrontal and HSS structure. The computational complexity associated with the factorization is almost linear with the size of the Helmholtz matrix. Our numerical approach can be compared with the spectral element method in 3D seismic applications. JF - American Geophysical Union Fall Meeting AU - Wang, S AU - de Hoop, M V AU - Xia, J AU - Li, X AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S51D EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - spherical harmonic analysis KW - numerical models KW - three-dimensional models KW - Helmholtz equation KW - spectral analysis KW - propagation KW - elastic waves KW - seismic waves KW - frequency KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1824216398?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=3D+frequency+modeling+of+elastic+seismic+wave+propagation+via+a+structured+massively+parallel+direct+Helmholtz+solver&rft.au=Wang%2C+S%3Bde+Hoop%2C+M+V%3BXia%2C+J%3BLi%2C+X%3BAnonymous&rft.aulast=Wang&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-09-29 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - elastic waves; frequency; Helmholtz equation; numerical models; propagation; seismic waves; spectral analysis; spherical harmonic analysis; three-dimensional models ER - TY - JOUR T1 - Krauklis wave in rock fractures filled with fluid AN - 1803775851; 2016-060786 AB - The Krauklis wave is a slow dispersive mode that propagates in a fluid layer bounded by elastic media. This wave was first reported by Krauklis (1962) who, in studying single fractures, found its analytical form and described its main properties, such as dominant polarization along the walls, high dispersion, and a propagation velocity going to zero at the zero frequency limit. Independently, Lloyd and Redwood (1965) and later Paillet and White (1982) found this wave numerically, as a root of the correspondent determinant for a linear system representing boundary conditions. Since then, many authors have reported on interesting properties of this slow fluid wave, including its high amplitude and its central role in wave propagation within fractures (Ferrazzini and Aki, 1987; Groenenboom and Falk, 2000; Groenenboom and Fokkema, 1998; Ziatdinov et al., 2006; Korneev, 2008; Korneev et al., 2009; Frehner and Schmalholz, 2010; Derov et al., 2009). (Note that some authors--Bell and Fletcher, 2004; Elliott, 2007) suggest that these slow fluid waves play a key role in hearing physiology.) The Krauklis wave has been observed in the laboratory (Tang and Cheng, 1988; Hassan and Nagy, 1997), in field data during hydrofracturing (Ferrazzini et al., 1990), and in cross-well seismic (Goloshubin et al., 1994). Chouet (1996) suggested that low-frequency seismic tremors taking place before volcano eruptions can be explained by this wave propagating in molten lava. Analytical and numerical results suggest that Krauklis wave has dominant amplitudes compared to all other waves and can store most of the energy of seismic waves in fractured media. At the laboratory scale (less that 1 m ) models it is possible to observe resonances caused by the Krauklis wave at frequencies below 10 Hz. JF - American Geophysical Union Fall Meeting AU - Korneev, V A AU - Danilovskaya, L AU - Kashtan, B M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract T51I EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - numerical models KW - Krauklis wave KW - elastic waves KW - frequency KW - fluid dynamics KW - layered materials KW - boundary conditions KW - fractures KW - seismicity KW - eruptions KW - velocity KW - elastodynamic properties KW - propagation KW - seismic waves KW - wave dispersion KW - amplitude KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803775851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Krauklis+wave+in+rock+fractures+filled+with+fluid&rft.au=Korneev%2C+V+A%3BDanilovskaya%2C+L%3BKashtan%2C+B+M%3BAnonymous&rft.aulast=Korneev&rft.aufirst=V&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-07-14 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - amplitude; boundary conditions; elastic waves; elastodynamic properties; eruptions; fluid dynamics; fractures; frequency; Krauklis wave; layered materials; numerical models; propagation; seismic waves; seismicity; velocity; wave dispersion ER - TY - JOUR T1 - Recent results from crosswell CASSM (continuous active-source seismic monitoring) AN - 1803774925; 2016-060783 AB - The precision in-situ measurement of seismic properties has been previously demonstrated by crosswell CASSM surveys utilizing piezoelectric seismic sources and various seismic sensors. The underlying precision of travel time measurement (and hence velocity measurement) is shown to be a function of signal-to-noise ratio (S/N), and therefore the semi-permanent CASSM deployment allows massive stacking to provide very large S/N. With high precision data, properties such as the velocity-stress dependence can be resolved. In this presentation, data from three recent CASSM deployments will be shown. First, we will present the recent measurement of stress dependence at 1 km depth in the San Andreas Fault Observatory at Depth (SAFOD). This work follows on the published observation of preseismic stress changes (Niu, et al, 2008) with a redeployment of instrumentation at SAFOD. The latest SAFOD deployment, in which we collected approximately 40-days of data, from February 19, 2010 to March 31, 2010, suffered from instrumentation failure before observation of seismicity, but data for velocity-stress calibration was acquired using barometric pressure, and the stress sensitivity result of approximately 2.5 X 10 (super -7) Pa (super -1) is in agreement with our previous measurement. Secondly, we show a measurement of effective stress dependence in a 3 km deep reservoir used for CO (sub 2) sequestration in Cranfield, MS. This experiment uses a fluid pump test, with downhole pressure gauge, to demonstrate a velocity-stress sensitivity of approximately 5 X 10 (super -6) MPa (super -1) . In the third CASSM experiment, the methodology was expanded to multi-level measurement (ML-CASSM) of hydrofracture growth in a shallow ( approximately 30 m) bioremediation project. In this experiment we demonstrate the first fully automated multi-source/multi-sensor CASSM system capable of tomographic velocity imaging with temporal resolution of 3-4 minutes. This temporal sampling allowed quantitative imaging of velocity changing in response to fracture growth. JF - American Geophysical Union Fall Meeting AU - Daley, T M AU - Ajo Franklin, J B AU - Niu, F AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract T51I EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - tomography KW - monitoring KW - carbon sequestration KW - stress KW - SAFOD KW - Mississippi KW - geophysical methods KW - seismic sources KW - bioremediation KW - oil and gas fields KW - seismic methods KW - remediation KW - carbon dioxide KW - seismicity KW - stacking KW - Cranfield Mississippi KW - velocity KW - signal-to-noise ratio KW - instruments KW - 19:Seismology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774925?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Recent+results+from+crosswell+CASSM+%28continuous+active-source+seismic+monitoring%29&rft.au=Daley%2C+T+M%3BAjo+Franklin%2C+J+B%3BNiu%2C+F%3BAnonymous&rft.aulast=Daley&rft.aufirst=T&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-07-14 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - bioremediation; carbon dioxide; carbon sequestration; Cranfield Mississippi; geophysical methods; instruments; Mississippi; monitoring; oil and gas fields; remediation; SAFOD; seismic methods; seismic sources; seismicity; signal-to-noise ratio; stacking; stress; tomography; United States; velocity ER - TY - JOUR T1 - An embedded boundary approach for the simulation of precipitation and dissolution in sediments at the pore scale AN - 1765874963; 2016-015166 AB - Precipitation (or dissolution) of mineral grains modifies the geometry of the pore space in subsurface sediment with evolving solid-liquid boundaries. In turn, changes in the pore space alter the groundwater flow through the sediment, which ultimately affects the continuum scale reaction rates that are relevant for field applications such as carbon sequestration. Modeling provides a unique tool to understand and quantify the feedback processes between mineral precipitation (or dissolution) and flow at the pore scale. However, for modeling to accurately resolve the flow and reactive transport dynamics at the micrometer length scale in real porous media sediments, a method capable of representing complex solid-fluid and fluid-fluid boundaries in a high performance simulation framework is necessary. Here we present a modeling approach coupling flow and transport at the pore scale with multicomponent geochemistry that utilizes the embedded boundary method to characterize fluid-solid interfaces. The development is based on an adaptive, parallelized flow and transport software package, Chombo, and the geochemical code, CrunchFlow, providing powerful simulation capabilities. We demonstrate the approach in simulation of calcite dissolution in complex pore structures that are reconstructed from synchrotron-based x-ray computed microtomography (CMT) images. We apply high resolution techniques to track sharp gradients of concentrations that typically drive precipitation and dissolution reactions. We show that the approach is consistent with that used for moving fluid-fluid interfaces, and thus providing a robust and algorithmically consistent methodology that can be applied in multiphase flow problems. We use the model to examine the inter-dependence between continuum-scale dissolution/precipitation rates and flow patterns at the pore scale in different porous media geometries by using volume averaging methods. JF - American Geophysical Union Fall Meeting AU - Shen, C AU - Molins, S AU - Trebotich, D AU - Steefel, C AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H54C EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - imagery KW - Chombo computer program KW - porous materials KW - hydrogeology KW - solution KW - simulation KW - ground water KW - geochemical cycle KW - calcite KW - CrunchFlow KW - X-ray data KW - fluid-fluid interface KW - precipitation KW - carbon KW - sediments KW - multiphase flow KW - carbon cycle KW - computed tomography data KW - geochemistry KW - embedded boundary method KW - carbonates KW - 02C:Geochemistry of rocks, soils, and sediments KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765874963?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=An+embedded+boundary+approach+for+the+simulation+of+precipitation+and+dissolution+in+sediments+at+the+pore+scale&rft.au=Shen%2C+C%3BMolins%2C+S%3BTrebotich%2C+D%3BSteefel%2C+C%3BAnonymous&rft.aulast=Shen&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - calcite; carbon; carbon cycle; carbonates; Chombo computer program; computed tomography data; CrunchFlow; embedded boundary method; fluid-fluid interface; geochemical cycle; geochemistry; ground water; hydrogeology; imagery; multiphase flow; porous materials; precipitation; sediments; simulation; solution; X-ray data ER - TY - JOUR T1 - Three-dimensional level set modelling of capillary-controlled displacements in digital porous media AN - 1765871938; 2016-015168 AB - In geological CO (sub 2) storage capillary entry pressures for CO (sub 2) invasion into low-permeability formation layers or cap rock are required for a reliable prediction of the displacement front in the storage site. High capillary entry pressures can hinder upward migration of CO (sub 2) causing it to either move laterally or get trapped. We present a 3D level set model for simulating capillary-controlled displacements in 3D rock images. Capillary pressure and interfacial area--saturation curves, as well as mean and principal interface curvatures are computed from the proposed model. The level set model is compared with a 2D semi-analytical model for calculating capillary pressure curves and arc menisci configurations in straight tubes with pore cross-sections obtained from 2D rock images. The critical displacement events and capillary entry pressures simulated with both models are in agreement. The level set simulations show that the computed mean curvature is approximately constant everywhere on the interfaces at steady state, whereas the two principal interface curvatures can vary significantly in pore space constrictions. It is also shown that the semi-analytical model provides a sufficient approximation to the initial fluid configuration required by the level set model. Level set simulations are performed in 3D images of random sphere packs (see Figure) and sandstone rocks, and the computed capillary pressure and interfacial area curves exhibit similar trends as measured data. Impacts of grid refinement on the simulated results are explored. It is demonstrated that the model accounts for several well documented critical pore level phenomena in 3D porous media, such as co-operative pore filling and Haines jumps. Furthermore, the non-wetting fluid is observed to snap off water by coalescence of opposite interfaces. These simulations also show that the two principal curvatures can vary significantly, which indicates that the shape of the interfaces is far from spherical in many cases. It is concluded that the level set method is applicable for capillary pressure and fluid configuration modeling in 3D porous rocks. JF - American Geophysical Union Fall Meeting AU - Helland, J AU - Jettestuen, E AU - Hatzignatiou, Dimitrios G AU - Silin, D AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H54C EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - carbon sequestration KW - capillary pressure KW - three-dimensional models KW - sandstone KW - porous materials KW - mathematical models KW - fluid phase KW - capillarity KW - simulation KW - two-dimensional models KW - carbon dioxide KW - physical properties KW - sedimentary rocks KW - movement KW - interfaces KW - rocks KW - clastic rocks KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1765871938?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Three-dimensional+level+set+modelling+of+capillary-controlled+displacements+in+digital+porous+media&rft.au=Helland%2C+J%3BJettestuen%2C+E%3BHatzignatiou%2C+Dimitrios+G%3BSilin%2C+D%3BAnonymous&rft.aulast=Helland&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2016-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2016-02-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - capillarity; capillary pressure; carbon dioxide; carbon sequestration; clastic rocks; fluid phase; hydrology; interfaces; mathematical models; movement; permeability; physical properties; porous materials; rocks; sandstone; sedimentary rocks; simulation; three-dimensional models; two-dimensional models ER - TY - JOUR T1 - Uranium-series comminution ages for dating detrital sediments; investigating the methodological underpinnings AN - 1734265009; 2015-107682 AB - The uranium-series comminution age method can be utilized to directly date fine-grained detrital clasts, which are nearly ubiquitous throughout the sediments and soils blanketing the Earth's surface environment. In addition to yielding the comminution age (which is the elapsed time since the detrital particle was reduced below a critical threshold grain size ( approximately 50 microns)), sediment transport timescales can also be obtained in settings where the depositional age can be determined using independent dating methods. Therefore, the comminution age method is a powerful approach for investigating the timescales and associated Earth surface processes of a broad range of terrestrial deposits. The basic model for how the comminution age method works is that for grains that have been reduced below the critical threshold size, there is a measurable decrease in the ( (super 234) U/ (super 238) U) activity ratio due to time-dependent alpha recoil loss of the (super 234) U daughter following decay of the (super 238) U parent isotope. The magnitude of this decrease yields the comminution age, when information is also taken into account regarding the initial ( (super 234) U/ (super 238) U) ratio, as well as the grain surface area over which recoiled (super 234) U daughters are lost (described by a constant termed the recoil loss parameter f (sub alpha ) ). Although the fundamental concepts underlying the use of the comminution age method as a chronometer are simple and well-established, the complexity of natural samples requires that careful attention be paid to methodological details that can affect the accuracy of the comminution ages obtained from U isotope measurements. Of particular interest for terrestrial samples are potential impacts of both physical and chemical weathering on the U isotope composition of bulk sediments. Weathering processes can potentially obscure and/or alter the U isotopic composition of the detrital fraction by mechanisms such as the production of secondary phases with different U isotope compositions, dissolution-induced removal of the outer grain surfaces that are depleted in (super 234) U , and by promoting alternate mechanisms for preferential loss of (super 234) U relative to (super 238) U . Here we present work that describes methodological approaches for obtaining the U isotopic composition relevant for accurate comminution age dating of natural samples, as well as further supporting evidence for the robustness of the alpha recoil model of (super 234) U loss. This work includes laboratory measurements of the U isotopic composition of young glacially-derived sediment, experiments to assess optimal sample pretreatment protocols, and modeling calculations of weathering effects on the U isotopic composition of grains. These studies collectively further the development of the comminution age method as a useful tool for investigating Earth surface processes. JF - American Geophysical Union Fall Meeting AU - Lee, V E AU - DePaolo, D J AU - Christensen, J N AU - Huber, C AU - Henderson, G M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract EP51F EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - sediment transport KW - isotopes KW - isotope ratios KW - sedimentation KW - detrital sedimentation KW - fission-track dating KW - comminution KW - radioactive isotopes KW - geochronology KW - transport KW - metals KW - uranium KW - U-238/U-234 KW - actinides KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1734265009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Uranium-series+comminution+ages+for+dating+detrital+sediments%3B+investigating+the+methodological+underpinnings&rft.au=Lee%2C+V+E%3BDePaolo%2C+D+J%3BChristensen%2C+J+N%3BHuber%2C+C%3BHenderson%2C+G+M%3BAnonymous&rft.aulast=Lee&rft.aufirst=V&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; comminution; detrital sedimentation; fission-track dating; geochronology; isotope ratios; isotopes; metals; radioactive isotopes; sediment transport; sedimentation; transport; U-238/U-234; uranium ER - TY - JOUR T1 - Carbon flux explorer observations of ocean carbon sedimentation AN - 1729849221; 2015-103317 AB - The strength of natural biotic organic carbon sedimentation from the base of sunlit zone of the ocean is estimated to be 10 Pg C/y globally. This biological sequestration of carbon to deeper waters plays a key role in the atmosphere/ocean carbon balance. It is impossible to predict whether the ocean biological carbon pump will strengthen or weaken in the face of climate change and ocean acidification because there are scant observations of the sinking carbon flux and remineralization in the upper 1000 m. We report progress on the development and deployment of the fully robotic and autonomous Ocean Carbon Flux Explorer (CFE) which is designed to follow hourly variations of carbon sedimentation for seasons at depths to 1500 m. The CFE relays observations to shore in real time via Iridium satellite links. The Carbon Flux Explorer is the integration of the Scripps Sounding Oceanographic Lagrangian Observer (SOLO) with the LBNL/UC Berkeley Optical Sedimentation Recorder (OSR). The OSR intercepts sinking particles and images them using dark field, transmitted, and transmitted cross polarized modes of illumination. OSR's modified to collect samples have been deployed to enable translation image data on particle albedo, optical density, and birefringence to carbon units. Our aim is fully autonomous operations in 2012. In this progress update, we report highlights of CFE deployments in the Santa Catalina Basin (October 2010, May 2011) and Santa Cruz Basin (May 2011), and California Current waters (August through September 2011). In many cases CFE data shows order of magnitude variation of particle sedimentation on diurnal time scales, a view of sedimentation here-to-fore not attained. JF - American Geophysical Union Fall Meeting AU - Bishop, J K AU - Wood, T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract OS31B EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - sea water KW - sedimentation KW - marine geology KW - deep-sea environment KW - hydrochemistry KW - geochemical cycle KW - marine sediments KW - marine environment KW - carbon KW - sediments KW - carbon flux explorer KW - carbon cycle KW - instruments KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729849221?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Carbon+flux+explorer+observations+of+ocean+carbon+sedimentation&rft.au=Bishop%2C+J+K%3BWood%2C+T%3BAnonymous&rft.aulast=Bishop&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-11-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon; carbon cycle; carbon flux explorer; deep-sea environment; geochemical cycle; hydrochemistry; instruments; marine environment; marine geology; marine sediments; sea water; sedimentation; sediments ER - TY - JOUR T1 - Elasticity of orthoenstatite at high-pressure AN - 1707523759; 2015-082722 AB - Orthoenstatite is an abundant yet complex mineral in Earth's upper mantle. Despite its abundance, the properties of orthopyroxene at high pressure remain ambiguous (e.g., Zhang et al. 2011; Jahn 2008; Kung et al. 2004). We explored select properties of a synthetic powdered orthoenstatite (Mg (sub 0.87) (super 57) Fe (sub 0.13) ) (sub 2) Si (sub 2) O (sub 6) sample by X-ray diffraction (XRD) and nuclear resonance inelastic X-ray scattering (NRIXS) as a function of pressure in a neon pressure medium at 300 K. The XRD measurements were carried out at beamline 12.2.2 of the Advanced Light Source (Berkeley, CA), and the sample was studied up to 34 GPa. NRIXS measurements were carried out at sector 3ID-B of the Advanced Photon Source (Chicago, IL) in the pressure range of 3 to 17 GPa. From the raw NRIXS data, the partial phonon density of states (DOS) was derived (e.g., Sturhahn 2004). The volume (or pressure) dependence of several properties, such as the Lamb-Mossbauer factor, mean force constant, specific heat, vibrational entropy, and vibrational kinetic energy were determined from the DOS. We will discuss our results from these combined studies and the implications for Earth's upper mantle. JF - American Geophysical Union Fall Meeting AU - Zhang, D AU - Jackson, J M AU - Chen, Bin AU - Zhao, J AU - Yan, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract MR41A EP - 2095 PB - American Geophysical Union, Washington, DC VL - 2011 KW - silicates KW - upper mantle KW - pressure KW - density KW - X-ray diffraction data KW - entropy KW - specific heat KW - mantle KW - high pressure KW - pyroxene group KW - mineral composition KW - phonons KW - orthopyroxene KW - enstatite KW - chain silicates KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1707523759?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Elasticity+of+orthoenstatite+at+high-pressure&rft.au=Zhang%2C+D%3BJackson%2C+J+M%3BChen%2C+Bin%3BZhao%2C+J%3BYan%2C+J%3BAnonymous&rft.aulast=Zhang&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-08-27 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - chain silicates; density; enstatite; entropy; high pressure; mantle; mineral composition; orthopyroxene; phonons; pressure; pyroxene group; silicates; specific heat; upper mantle; X-ray diffraction data ER - TY - JOUR T1 - Wettability alteration upon reaction with scCO2; silica, mica, and calcite AN - 1703686876; 2015-077277 AB - When brine and supercritical CO2 (scCO2) contact with a substrate (mineral surface), the equilibrium configuration among the three interfacial tensions determines the wetting property (measured by contact angles) of the substrate. Wettability is one of the most important reservoir properties in geological carbon sequestration, which largely impacts mobility of the injected CO2, and CO2 storage capacity of the reservoir. Although CO2 is commonly assumed to be the non-wetting phase in the current predictive models for CO2 storage capacity, a few recent studies have begun to show that the wettability of caprock minerals can be altered in the presence of scCO2 under pressures and temperatures representative of geological storage conditions. However results from these studies are not consistent and few data are available. In this paper we report our studies on wettability alteration of three minerals: silica, mica, and calcite, with contact angle measurements at varied pressures (7 to 25 MPa) and at temperature 45 degrees C, under different ionic strengths (1.0 to 5.0 M NaCl) of the brine phase. We will also report the effects of roughness of the mineral surfaces, and droplet sizes of the fluid phases on contact angle values. The results show that the contact angles largely increased in the presence of scCO2 with increased pressure and ion-strength for mica and silica. In contrast, only small changes in contact angles were obtained in measurements on calcite. The mechanisms responsible for these changes, and influences of the different substrates will be discussed. JF - American Geophysical Union Fall Meeting AU - Jung, J AU - Wan, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V14A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - silicates KW - alteration KW - experimental studies KW - carbon sequestration KW - pressure KW - supercritical materials KW - roughness KW - temperature KW - carbon dioxide KW - calcite KW - laboratory studies KW - chemical reactions KW - mica group KW - silica KW - brines KW - wettability KW - sheet silicates KW - carbonates KW - 30:Engineering geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1703686876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Wettability+alteration+upon+reaction+with+scCO2%3B+silica%2C+mica%2C+and+calcite&rft.au=Jung%2C+J%3BWan%2C+J%3BAnonymous&rft.aulast=Jung&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/V/sessions/V14A/abstracts/V14A-07.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Sept. 24, 2014 N1 - Last updated - 2015-08-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alteration; brines; calcite; carbon dioxide; carbon sequestration; carbonates; chemical reactions; experimental studies; laboratory studies; mica group; pressure; roughness; sheet silicates; silica; silicates; supercritical materials; temperature; wettability ER - TY - JOUR T1 - Magmatic CO (sub 2) emissions at Mammoth Mountain, California, tracked by (super 14) C in tree core AN - 1703685849; 2015-077305 AB - Magmatic CO (sub 2) efflux to the atmosphere causes persistent depletion of (super 14) C in the wood of trees that grow in areas of strong emissions. The record of (super 14) C depletion in core from a surviving tree at the Horseshoe Lake tree-kill area, on the S flank of Mammoth Mountain Volcano, has been updated to cover the time period 1984 to 2010. The amount of depletion was reasonably stable in annual growth rings for years 1995-2009 and indicates that the magmatic CO (sub 2) component in air at canopy height was 31+ or -7 ppmv. Depletion increased sharply in the 2010 ring, yielding a magmatic CO (sub 2) concentration of 56 ppmv. This observation is consistent with accumulation chamber and eddy covariance measurements from the area, which indicate that magmatic CO (sub 2) effluxes and near-surface atmospheric concentrations increased during 2010. The agreement between tree-core and direct gas measurements suggests that the selected tree may be suitable for constraining the long-term record of CO (sub 2) emission strength at Horseshoe Lake, but the ability of a single tree to constrain total CO (sub 2) discharge from a broad region of diffuse emissions needs investigation. New concentration source-area modeling based on local atmospheric data measured by a 3-m tall eddy covariance tower suggests that the 13-m tall tree cored may provide a weighted integration of CO (sub 2) emission strength over an area at least as large as the Horseshoe Lake gas anomaly (0.3 km (super 2) ). If the tree-core record accurately reflects total CO (sub 2) discharge, then emission strength in 2010 approached that in 1990, when anomalous gas efflux began in the aftermath of a 6-month seismic swarm linked to upflow of magmatic fluids. The apparent increase in emission strength in 2010 may correlate with a recent resurgence in seismicity beneath Mammoth Mountain and an increase in the (super 3) He/ (super 4) He ratio in fumarolic emissions near the summit, both of which began in 2009. If so, a correlative increase in (super 14) C depletion is likely to exist in trees at other areas around the volcano. Tree cores have now been collected in an area of anomalous gas efflux on the N flank of the volcano to test this hypothesis. Overall, our results support the use of tree-core (super 14) C to supplement instrumental data as well as to reconstruct gas emission history in cases where direct gas measurements are lacking. JF - American Geophysical Union Fall Meeting AU - Evans, W C AU - Mangan, M T AU - McGeehin, J P AU - King, J C AU - Lewicki, J L AU - Hilley, G E AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V21A EP - 2483 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - Quaternary KW - isotopes KW - magmatism KW - Holocene KW - carbon dioxide KW - Cenozoic KW - California KW - radioactive isotopes KW - geochronology KW - tree rings KW - carbon KW - Mammoth Mountain KW - Horseshoe Lake KW - C-14 KW - upper Holocene KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1703685849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Magmatic+CO+%28sub+2%29+emissions+at+Mammoth+Mountain%2C+California%2C+tracked+by+%28super+14%29+C+in+tree+core&rft.au=Evans%2C+W+C%3BMangan%2C+M+T%3BMcGeehin%2C+J+P%3BKing%2C+J+C%3BLewicki%2C+J+L%3BHilley%2C+G+E%3BAnonymous&rft.aulast=Evans&rft.aufirst=W&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/V/sessions/V21A/abstracts/V21A-2483.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Sept. 23, 2014 N1 - Last updated - 2015-08-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - C-14; California; carbon; carbon dioxide; Cenozoic; geochronology; Holocene; Horseshoe Lake; isotopes; magmatism; Mammoth Mountain; Quaternary; radioactive isotopes; tree rings; United States; upper Holocene ER - TY - JOUR T1 - Brine films in reservoir pores during geologic CO2 sequestration AN - 1703685834; 2015-077272 AB - In deep reservoirs used for geologic carbon sequestration, brine films reside along surfaces of pores invaded by supercritical CO2 (scCO2). In these environments, brine films are retained on topographically complex surfaces of mineral grains and intragranular contact regions through the combined influences of capillarity and adsorption. Thus, brine films are important in aqueous phase reactions and chemical transport occurring during geological C sequestration. Moreover, conditions leading to destabilization of adsorbed brine films are important because they lead to dehydration of mineral surfaces and direct scCO2-mineral contact. Work summarized here includes capillary scaling calculations on conditions required for brine film coexistence with scCO2 in reservoir pores, and calculations of electric double layer capillary (disjoining) pressure relations to adsorbed film thicknesses. Capillary scaling was used to predict conditions under which scCO2 invades pores, and to predict upper limits of resulting brine film thicknesses. Developments from electric double layer models are being applied to obtain limits on thicknesses of brine films equilibrated with scCO2. The combination of capillary and electric double layer considerations indicate that adsorbed brine film thicknesses are at most a few tens of nm thick upon initial formation by scCO2 displacement. Higher ionic strength and lower pH in the aqueous phase contribute to thinning of films. On the other hand, capillary effects at grain contacts and on rough surfaces can support much thicker films. This research on the hydraulic properties of brine films is part of the U.S. Department of Energy's Energy Frontier Research Center on Nanoscale Control of Geological CO2 led by Lawrence Berkeley National Laboratory. JF - American Geophysical Union Fall Meeting AU - Tokunaga, T K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V14A EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - carbon sequestration KW - capillary pressure KW - brines KW - thickness KW - fluid flow KW - electric double layer KW - porosity KW - carbon dioxide KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1703685834?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Brine+films+in+reservoir+pores+during+geologic+CO2+sequestration&rft.au=Tokunaga%2C+T+K%3BAnonymous&rft.aulast=Tokunaga&rft.aufirst=T&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/V/sessions/V14A/abstracts/V14A-02.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Sept. 24, 2014 N1 - Last updated - 2015-08-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - brines; capillary pressure; carbon dioxide; carbon sequestration; electric double layer; fluid flow; porosity; thickness ER - TY - JOUR T1 - Pore scale studies of wettability changes in a supercritical CO (sub 2) -brine-silica system using micromodels AN - 1703685628; 2015-077276 AB - Capillary pressure is a critical factor controlling CO (sub 2) transport, distribution, and equilibrium in geologic carbon sequestration; and it is mainly controlled by brine-CO (sub 2) interfacial tension (IFT), wettability, and pore size distribution. Brine-CO (sub 2) IFT has been intensively studied by several research groups, covering wide ranges of conditions encountered in geologic carbon storage. However, there is still only a limited amount of published data for wettability in mineral-brine-CO (sub 2) systems, especially at the pore scale (< 50 mu m). Reviewing the available literature, most of wettability studies were conducted by measuring contact angles using the captive or sessile drop method on flat substrates, and through core flooding experiments. Contact angle measurements for brine-supercritical CO (sub 2) (scCO (sub 2) ) at the pore scale are not available. We studied wettability and wettability alteration at the pore scale, in brine-scCO (sub 2) -silica systems using engineered micromodels (transparent pore networks) at 8.5 MPa and 318.15 K. We show that the silica surface-brine contact angle increased from initial values near 0 degrees up to 40 degrees to 80 degrees after reaction with scCO (sub 2) . These measurements indicate that interfacial reactions may change wettability and capillary pressure, especially under more nonequilibrium conditions. JF - American Geophysical Union Fall Meeting AU - Kim, Y AU - Wan, J AU - Kneafsey, T J AU - Tokunaga, T K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V14A EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - laboratory studies KW - experimental studies KW - carbon sequestration KW - capillary pressure KW - supercritical materials KW - silica KW - brines KW - wettability KW - physical models KW - carbon dioxide KW - 30:Engineering geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1703685628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Pore+scale+studies+of+wettability+changes+in+a+supercritical+CO+%28sub+2%29+-brine-silica+system+using+micromodels&rft.au=Kim%2C+Y%3BWan%2C+J%3BKneafsey%2C+T+J%3BTokunaga%2C+T+K%3BAnonymous&rft.aulast=Kim&rft.aufirst=Y&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/V/sessions/V14A/abstracts/V14A-06.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Sept. 24, 2014 N1 - Last updated - 2015-08-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - brines; capillary pressure; carbon dioxide; carbon sequestration; experimental studies; laboratory studies; physical models; silica; supercritical materials; wettability ER - TY - JOUR T1 - Evaluating scale dependent hydrologic processes using a hyper-resolution global land surface model at regional-to-local scales AN - 1696872301; 2015-065609 AB - Hyper-resolution modeling at representative hill slope scales of 100 m and finer allows for significantly better representation of the effects of spatial heterogeneity in topography, soils, and vegetation on hydrological dynamics. This scale allows for the representation of processes that are sub grid to the current generation of models, such as slope and aspect effects on incoming and reflected solar radiation, and consequent effects on snowmelt, soil moisture redistribution, and evapotranspiration. Higher resolution models would also enable better representation of channel processes and would provide indications of locally inundated areas and water depths in flooded areas, as well as likelihoods of the number of people affected and critical infrastructures potentially at risk. In this study we develop an innovative method for advancing high spatial resolution simulations of the terrestrial water budget with a particular focus on terrestrial water storage (TWS) variations through the use of new scaling arguments and assimilation of gravity data. Our primary hypothesis is that the local water budget terms can be calculated with improved accuracy through the application of such scaling and assimilation methods. We have used some of these methods for simulation of the NCAR Community Land Model (CLM4.0) at spatial resolutions of 30 arc-seconds ( approximately 900m) and 3 arc-seconds ( approximately 90m) over a west-to-east transect in Northern California that includes part of the Central Valley and Sierra Nevada foothills and contains several small-scale wetland areas. We use CLM4.0 results to initially quantify and outline the effects of high-resolution model outcomes and to further develop improved hyper-resolution gravity assimilation for CLM4.0 at regional-to-local scales. JF - American Geophysical Union Fall Meeting AU - Singh, R S AU - Miller, N L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract EP23B EP - 0740 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - soils KW - Sierra Nevada KW - hydrology KW - geologic hazards KW - moisture KW - water balance KW - vegetation KW - evapotranspiration KW - models KW - Central Valley KW - California KW - dynamics KW - solar radiation KW - natural hazards KW - floods KW - Northern California KW - meltwater KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696872301?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluating+scale+dependent+hydrologic+processes+using+a+hyper-resolution+global+land+surface+model+at+regional-to-local+scales&rft.au=Singh%2C+R+S%3BMiller%2C+N+L%3BAnonymous&rft.aulast=Singh&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-07-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - California; Central Valley; dynamics; evapotranspiration; floods; geologic hazards; hydrology; meltwater; models; moisture; natural hazards; Northern California; Sierra Nevada; soils; solar radiation; United States; vegetation; water balance ER - TY - JOUR T1 - The crust has changed; evidence for and implications of age dependent Sm/Nd ratios in juvenile continental crust AN - 1696872197; 2015-065770 AB - The Nd isotope systematics of crustal granites and their presumed source materials are used to reconstruct the Sm/Nd ratios of the continental crust with distinct mantle extraction ages (based on DePaolo, 1988 EPSL and Bennett and DePaolo, 1987 GSA Bull). A more extensive, literature-derived data set for the western USA supports the isotopic mapping of Bennett and DePaolo. Calculated Sm/Nd ratios of the crust show a secular increase from the Archean to approximately 1.5 Ga. Modern island arc lavas, analogs for juvenile continental crust have the lowest Sm/Nd, consistent with the inferred trend from the granites. Possible reasons for the increasing Sm/Nd include changes in the Sm/Nd ratio of the mantle reservoir and/or changes in the mineralogy of the reservoir from which the crust was extracted. It is postulated that the primary control of Sm/Nd in the continental crust is the residual mineralogy in the reservoirs from which the crust was extracted. This is possible because changes in the geothermal gradient through Earth's history affect the residual mineralogy during the extraction of continental crust. Recent phase equilibria studies relevant to modern island arcs suggest that accessory minerals such as allanite buffer the LREE budget from the subducting sediment and basaltic slab, the primary source of REE in island arc lavas. Crust production early in Earth's history likely occurred at temperatures too high for allanite stability, meaning Sm/Nd ratios were likely controlled by garnet and/or amphibole in either subducted crust or the mantle reservoir. Modeling results will show how changing residual mineralogy during crust extractions can produce the observed changes in Sm/Nd ratios. More broadly the inferred time dependence for Sm/Nd may relate to the silica content of juvenile crust throughout Earth's history. JF - American Geophysical Union Fall Meeting AU - Brown, S T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract V41B EP - 2494 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - upper Precambrian KW - isotopes KW - igneous rocks KW - granites KW - continental crust KW - stable isotopes KW - radioactive isotopes KW - plutonic rocks KW - mineral composition KW - Sm-147/Nd-144 KW - Western U.S. KW - absolute age KW - Archean KW - samarium KW - rare earths KW - chemical composition KW - Precambrian KW - isotope ratios KW - Proterozoic KW - Sm/Nd KW - metals KW - neodymium KW - crust KW - 18:Solid-earth geophysics KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1696872197?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+crust+has+changed%3B+evidence+for+and+implications+of+age+dependent+Sm%2FNd+ratios+in+juvenile+continental+crust&rft.au=Brown%2C+S+T%3BAnonymous&rft.aulast=Brown&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/V41B-2494 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Nov. 10, 2014 N1 - Last updated - 2015-07-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - absolute age; Archean; chemical composition; continental crust; crust; granites; igneous rocks; isotope ratios; isotopes; metals; mineral composition; neodymium; plutonic rocks; Precambrian; Proterozoic; radioactive isotopes; rare earths; samarium; Sm-147/Nd-144; Sm/Nd; stable isotopes; United States; upper Precambrian; Western U.S. ER - TY - JOUR T1 - SeTES, a Self-Teaching Expert System for the discovery and production of natural gas in shales AN - 1689588083; 2015-055890 AB - SeTES is a Self-Teaching Expert System for the discovery and production of natural gas in shales. The alpha version of the SeTES system is scheduled for release in late August 2011. It is composed of three main components: a database, a set of semi-independent processing modules and a web-based, user-friendly interface. The goal of SeTES is not only to provide a tool for the improved recovery of shale gas but to make shale gas research results and techniques available and accessible to professionals and the public. The SeTES database contains a variety of different types of data related to shale gas including production and well completion records, geophysical well logs and horizons, petrophysical reports and location data. 13 processing modules are released with the alpha version. Production Analysis modules perform automatic decline curve analysis in order to estimate petrophysical parameters and ultimate recovery. Geologic/Geophysical modules are used to estimate flow parameters from geophysical well log data and project them along geophysical horizons. Optimization modules use probabilistic models to determine the optimal location for infill wells. Simulation modules run fortran-based 3d fluid flow simulation to predict production. Modules for Stimulation and Treatment suggest optimal fracturing fluids and fracture proppants. SeTES is self-teaching in that it computes probability distributions on all of its local parameters and uses them to improve its modeling and optimization algorithms. New modules are continually being added. Due to the large amount of computation required by the system, the SeTES alpha release supports only a limited number of users. SeTES beta is currently under construction and is expected to release in late 2012 or early 2013. JF - American Geophysical Union Fall Meeting AU - Kuzma, H A AU - Reagan, M T AU - Moridis, G J AU - Boyle, K L AU - Santos, R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract IN51A EP - 1571 PB - American Geophysical Union, Washington, DC VL - 2011 KW - petroleum exploration KW - shale gas KW - natural gas KW - expert systems KW - well-logging KW - statistical analysis KW - optimization KW - petroleum KW - gas shale KW - production KW - SeTES KW - sedimentary rocks KW - discoveries KW - petrography KW - probability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1689588083?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=SeTES%2C+a+Self-Teaching+Expert+System+for+the+discovery+and+production+of+natural+gas+in+shales&rft.au=Kuzma%2C+H+A%3BReagan%2C+M+T%3BMoridis%2C+G+J%3BBoyle%2C+K+L%3BSantos%2C+R%3BAnonymous&rft.aulast=Kuzma&rft.aufirst=H&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - discoveries; expert systems; gas shale; natural gas; optimization; petrography; petroleum; petroleum exploration; probability; production; sedimentary rocks; SeTES; shale gas; statistical analysis; well-logging ER - TY - JOUR T1 - Quantifying surface kinetic fractionations for isotopes and trace elements in calcite precipitated from aqueous solution AN - 1686063236; 2015-048294 AB - The isotopic ratios and trace element concentrations in calcite and other carbonate minerals form the basis for several paleoenvironmental indicators that are relied upon to reconstruct past Earth climates and ocean processes. Most of these carbonate minerals form at low temperatures (0 to 30 degrees C) and consequently are unlikely to have precipitated from aqueous solutions at equilibrium. The non-equilibrium nature of the precipitation process is well illustrated by the experimentally demonstrated precipitation rate-dependence of parameters such as the Ca and O isotopic composition, and the Sr, Mg, and Mn concentrations of calcite. We have been focused on understanding how to predict the magnitude and controls on these kinetic effects using a general transition-state theory approach, as well as models of ion-by-ion growth, molecular dynamics simulations of the desolvation step required for addition of cations to a mineral surface, and further experiments that involve carefully controlled solution compositions and crystal growth rates. Although models have been proposed that invoke diffusion as the primary control on the non-equilibrium aspects of calcite precipitation, it is relatively easy to show that diffusion is not likely to be the primary controlling process. We have focused on understanding the kinetic effects operating at and near the mineral surface, which are undeniably present and important, and appear to be of the correct magnitude and direction to account for observations in both laboratory and natural calcites. The approach we are using is also applicable to higher temperature aqueous precipitation. There are indications from Ca isotopes that similar surface kinetic effects occur at temperatures of 300 to 400 degrees C. Kinetic isotope and trace element effects are critically dependent on molecular exchange rates between the mineral surface and the aqueous solution, and the ratio of these rates to the net crystal growth rate. The challenge is to predict and/or measure these rates, which are dependent in a complex fashion on solution saturation state, cation/anion ratios, ionic strength, and other aspects of solution composition. In effect, trace elements and isotopes can provide a measure of these rates, and the derived rates from available experimental data are broadly compatible with measured calcite dissolution and precipitation rates and their dependence on solution composition. Overall, it appears possible to develop a comprehensive framework for understanding kinetic trace element and isotopic fractionation effects during precipitation of minerals from aqueous solution, and to constrain the important controlling parameters using a combination of experiments and simulations. JF - American Geophysical Union Fall Meeting AU - DePaolo, D J AU - Nielsen, L C AU - Hofmann, A E AU - de Yoreo, J AU - Gagnon, A C AU - Watkins, J M AU - Ryerson, F J AU - Brown, S T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP51E EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - calcium KW - isotope fractionation KW - alkaline earth metals KW - magnesium KW - experimental studies KW - oxygen KW - isotopes KW - isotope ratios KW - O-18/O-16 KW - manganese KW - stable isotopes KW - calcite KW - models KW - laboratory studies KW - Ca-44/Ca-40 KW - precipitation KW - metals KW - kinetics KW - carbonates KW - strontium KW - chemical fractionation KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686063236?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Quantifying+surface+kinetic+fractionations+for+isotopes+and+trace+elements+in+calcite+precipitated+from+aqueous+solution&rft.au=DePaolo%2C+D+J%3BNielsen%2C+L+C%3BHofmann%2C+A+E%3Bde+Yoreo%2C+J%3BGagnon%2C+A+C%3BWatkins%2C+J+M%3BRyerson%2C+F+J%3BBrown%2C+S+T%3BAnonymous&rft.aulast=DePaolo&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/PP/sessions/PP51E/abstracts/PP51E-03.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Dec. 19, 2014 N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Ca-44/Ca-40; calcite; calcium; carbonates; chemical fractionation; experimental studies; isotope fractionation; isotope ratios; isotopes; kinetics; laboratory studies; magnesium; manganese; metals; models; O-18/O-16; oxygen; precipitation; stable isotopes; strontium ER - TY - JOUR T1 - Geological investigations on the Wildcat Fault, Berkeley, California, with reference to hydrology AN - 1686063124; 2015-050321 AB - The Wildcat Fault, a splay of the Hayward Fault, which extends along the western side of the Berkeley Hills, California, has been investigated to better understand fault geology and its effects on regional hydrology. To this end, we have been conducting surface-based geologic investigations, geophysical surveys and borehole-based geologic and hydrologic investigations along the Wildcat Fault. This presentation mainly deals with borehole-based geologic investigations. Up to now, three approximately 150 m deep vertical boreholes and one approximately 210 m deep inclined borehole were core-drilled at LBNL site. Although the Wildcat Fault is known as a right-lateral strike-slip fault with several km displacements, the internal structure of the fault is quite complex. We have encountered multitudes of faults and grouped them into four fault zones. Most of the fault zones are dipping moderately to SW and supposedly were formed at an earlier stage. We have found foliated cataclasites and tuffaceous dikes (?) along these faults. On the contrary, the most prominent fault zone that dominates local hydrology seems to be a NW-SE trending vertical fault. While core recovery of this fault zone is poor at some depths, it contains the thickest gouge materials and supposedly had been active until a later stage. Results on investigations by thin sections and CT scanning, and analyses by XRD and U-Pb age dating, etc., will be presented. JF - American Geophysical Union Fall Meeting AU - Ito, H AU - Hamada, T AU - Tanaka, S AU - Ueta, K AU - Kiho, K AU - Onishi, C T AU - Karasaki, K AU - Goto, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H13A EP - 1171 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hydrology KW - volcanic rocks KW - igneous rocks KW - Berkeley Hills KW - Alameda County California KW - Berkeley California KW - California KW - pyroclastics KW - boreholes KW - metamorphic rocks KW - Hayward Fault KW - Wildcat Fault KW - tuff KW - cataclasites KW - faults KW - 16:Structural geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686063124?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Geological+investigations+on+the+Wildcat+Fault%2C+Berkeley%2C+California%2C+with+reference+to+hydrology&rft.au=Ito%2C+H%3BHamada%2C+T%3BTanaka%2C+S%3BUeta%2C+K%3BKiho%2C+K%3BOnishi%2C+C+T%3BKarasaki%2C+K%3BGoto%2C+J%3BAnonymous&rft.aulast=Ito&rft.aufirst=H&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Alameda County California; Berkeley California; Berkeley Hills; boreholes; California; cataclasites; faults; Hayward Fault; hydrology; igneous rocks; metamorphic rocks; pyroclastics; tuff; United States; volcanic rocks; Wildcat Fault ER - TY - JOUR T1 - Development of a methodology for hydrologic characterization of faults for geological repository siting AN - 1686062697; 2015-050281 AB - The Nuclear Waste Management Organization of Japan (NUMO) will select a site for HLW and TRU waste repository through the three-staged program, namely, the Literature Surveys, the Preliminary Investigations and the Detailed Investigations. Areas that are susceptible to natural hazards such as volcanism, faulting and significant uplift/erosion will be eliminated at first. Then, sites that have more favorable geological environment will be selected with respect to the repository design and long-term safety after closure. It is internationally acknowledged that hydrologic features of faults are of special concern in the above respects. It is highly likely from the experiences of site characterization worldwide that one could encounter numerous faults in an area of one hundred square kilometer assumed for the Preliminary Investigations. Efficient and practical investigation programs, and reliable models/parameters for the repository design and safety analysis are important aspects for implementers. A comprehensive methodology including strategies and procedures for characterizing such faults should thus be prepared prior to the actual investigations. Surveys on the results of site characterization in the world indicate potential contribution of geological features of faults such as host lithology, geometry, slip direction, internal structure and alteration to the fault hydrology. Therefore, NUMO, in collaboration with Lawrence Berkeley National Laboratory (LBNL), started a 5-year project in 2007 involving field investigations to develop a comprehensive methodology for hydrologic characterization of faults, with emphasis on the relationship between geological and hydrologic features of faults. A series of field investigations including ground geophysics, geological mapping, trench surveys, borehole investigations, hydrochemical analyses and hydrologic monitoring have been carried out on the Wildcat Fault that runs along the Berkeley Hills, California (see Karasaki, et al., Onishi, et al., Ito, et al. and Conrad, et al. in this session for detail). The field program will be completed by the end of this year to compile all the results into a comprehensive methodology. JF - American Geophysical Union Fall Meeting AU - Goto, J AU - Yoshimura, K AU - Moriya, T AU - Tsuchi, H AU - Karasaki, K AU - Onishi, C T AU - Ueta, K AU - Kiho, K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H12A EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hydrology KW - high-level waste KW - hydraulics KW - underground space KW - site exploration KW - characterization KW - Berkeley Hills KW - mapping KW - radioactive waste KW - California KW - underground installations KW - Wildcat Fault KW - waste disposal KW - underground disposal KW - faults KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686062697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Development+of+a+methodology+for+hydrologic+characterization+of+faults+for+geological+repository+siting&rft.au=Goto%2C+J%3BYoshimura%2C+K%3BMoriya%2C+T%3BTsuchi%2C+H%3BKarasaki%2C+K%3BOnishi%2C+C+T%3BUeta%2C+K%3BKiho%2C+K%3BAnonymous&rft.aulast=Goto&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Berkeley Hills; California; characterization; faults; high-level waste; hydraulics; hydrology; mapping; radioactive waste; site exploration; underground disposal; underground installations; underground space; United States; waste disposal; Wildcat Fault ER - TY - JOUR T1 - Hydrologic characterization study at Wildcat fault zone AN - 1686062608; 2015-050282 AB - A dedicated field site has been developed to further the understanding of, and to develop the characterization technology for, fault zone hydrology in the hills east of Berkeley, California across the Wildcat Fault. The Wildcat is believed to be a strike-slip fault and a member of the Hayward Fault System, with over 10 km of displacement. So far, several approximately 2-4-m deep trenches were cut, a number of surface-based geophysical surveys were conducted, and four approximately 150-m deep fully cored boreholes were drilled at the site; one on the east side and two on the west side of the suspected fault trace. The inclined fourth hole was drilled to penetrate the Wildcat. Geologic analysis results from these trenches and boreholes indicated that the geology was not always what was expected: while confirming some earlier, published conclusions about Wildcat, they have also led to some unexpected findings. The lithology at the Wildcat Fault area mainly consists of chert, shale, silt and sandstone, extensively sheared and fractured with gouge and cataclasite zones observed at several depths. Wildcat near the field site appears to consist of multiple fault planes with the major fault planes filled with unconsolidated pulverized rock instead of clay gouge. The pressure and temperature distributions indicate a downward hydraulic gradient and a relatively large geothermal gradient. Various types of borehole logging were conducted but there were no obvious correlations between boreholes or to hydrologic properties. Using the three other boreholes as observation wells, hydrologic cross-hole pumping tests were conducted in the fourth borehole. The hydraulic test data suggest the dual properties of the hydrologic structure of the fault zone: high permeability along the plane and low permeability across it, and the fault planes may be compartmentalizing aquifers. No correlation was found between fracture frequency and flow. Long term pressure monitoring over multiple seasons was shown to be very important. The main philosophy behind our approach for the hydrologic characterization of such a complex faulted, fractured system is to let the system take its own average and monitor long term behavior, instead of collecting a multitude of data at small length and time scales, or at a discrete fracture scale, and then to "up-scale," which is extremely tenuous at best. JF - American Geophysical Union Fall Meeting AU - Karasaki, K AU - Onishi, C T AU - Goto, J AU - Moriya, T AU - Ueta, K AU - Kiho, K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H12A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hydrology KW - California KW - hydraulics KW - site exploration KW - characterization KW - Wildcat Fault KW - Alameda County California KW - faults KW - fault zones KW - Berkeley California KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686062608?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Hydrologic+characterization+study+at+Wildcat+fault+zone&rft.au=Karasaki%2C+K%3BOnishi%2C+C+T%3BGoto%2C+J%3BMoriya%2C+T%3BUeta%2C+K%3BKiho%2C+K%3BAnonymous&rft.aulast=Karasaki&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Alameda County California; Berkeley California; California; characterization; fault zones; faults; hydraulics; hydrology; site exploration; United States; Wildcat Fault ER - TY - JOUR T1 - The impact of the Tsukiyoshi Fault on the hydrogeological conditions in the Tono area, Japan; a numerical modeling approach AN - 1686062163; 2015-050328 AB - Faults are commonly believed to act as either barriers to horizontal ground-water flow normal to the fault, conduits to horizontal flow parallel to the fault, or a combination of both. In addition, enhanced vertical permeability has also been observed as a common feature. We use numerical modeling to investigate the effects of vertical anisotropy of a dipping fault zone on the distribution of hydraulic head within and around the fault. The Tsukiyoshi Fault in the Tono region of Japan extends through the center of the assessment area and has an E-W strike. According to the results of borehole investigations, the fault has N80W strike, 70 degree dip, 10-30 m width and approximately 30 m vertical off-set. Model results show that for anisotropy ratios (A = kz/kx) of greater than 100, hydrostatic conditions are achieved within the fault zone, despite the existence of significant vertical flow rates. A hydraulic head difference of about 40 m across the fault is observed and confirmed by our model, suggesting that the fault acts as barrier to flow normal to it. We consider the pressure response to two shafts pumping in the upper parts of the fractured granitic formation near the fault. The response to pumping is monitored at two boreholes (DH-15 and DH-2) on the same side of the fault as the pumping shafts. The responses at the two boreholes are vertically invariant and highlight the effects of enhanced vertical permeability around the fault. This suggests that the fault controls the hydrology in this area. Particle tracking is used to investigate and demonstrate the effects of the fault on pathlines. JF - American Geophysical Union Fall Meeting AU - Ndiweni, C AU - Karasaki, K AU - Doughty, C AU - Botha, J F AU - Saegusa, H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H13A EP - 1178 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - Tono Japan KW - monitoring KW - Far East KW - numerical models KW - effects KW - ground water KW - flows KW - pump tests KW - Tsukiyoshi Fault KW - risk assessment KW - hydraulic conductivity KW - Honshu KW - Asia KW - permeability KW - Japan KW - faults KW - anisotropy KW - fault zones KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686062163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+impact+of+the+Tsukiyoshi+Fault+on+the+hydrogeological+conditions+in+the+Tono+area%2C+Japan%3B+a+numerical+modeling+approach&rft.au=Ndiweni%2C+C%3BKarasaki%2C+K%3BDoughty%2C+C%3BBotha%2C+J+F%3BSaegusa%2C+H%3BAnonymous&rft.aulast=Ndiweni&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - anisotropy; Asia; effects; Far East; fault zones; faults; flows; ground water; Honshu; hydraulic conductivity; hydrology; Japan; monitoring; numerical models; permeability; pump tests; risk assessment; Tono Japan; Tsukiyoshi Fault ER - TY - JOUR T1 - Isotopic techniques for identifying active groundwater flow along a complex fault zone associated with the Hayward fault system AN - 1686062043; 2015-050283 AB - A study of fluid flow along fractures in the Wildcat Canyon fault zone is being conducted to identify parameters that can be used to identify fault zones that are active conduits for groundwater flow to aid choosing sites for nuclear waste disposal. The geology of the site consists of highly fractured and permeable andesitic volcanic rocks of the Moraga formation overlying low-permeability Miocene sediments of the Orinda Formation that unconformably overlie sequences of shaly chert and sandstone of the Claremont Formation and permeable Cretaceous sediments of the Great Valley sequence. Groundwater recharge is believed to be primarily through the Moraga formation that is then channeled through faults in the Orinda formation. The Wildcat Canyon fault zone is located in the hills of Berkeley, CA. It is a part of the Hayward fault system, one of the most active fault systems in California. To date 4 core holes have been drilled through the fault system. The mineralogic, chemical and isotopic compositions of rock and groundwater samples retrieved from the holes are being analyzed. In this presentation, we will present preliminary data on the isotopic compositions of the groundwater (delta D, delta (super 18) O, delta (super 13) C of dissolved inorganic carbon and (super 87) Sr/ (super 86) Sr of dissolved strontium) and carbonate minerals (delta (super 13) C, delta (super 18) O, (super 87) Sr/ (super 86) Sr) in the rocks. The delta (super 18) O values of groundwater samples collected from the boreholes averaged -6.5ppm (VSMOW), which is in oxygen isotopic equilibrium at 15 degrees C with calcite with a delta (super 18) O value of -7.1ppm (VPDB). The delta (super 18) O values of secondary carbonate vein material collected from fractures in the fault zone ranged from -7.6ppm to +1.3ppm. The lowest values are concentrated in zones of highly fractured rock. The apparent oxygen isotopic equilibrium between the present-day groundwater and the secondary carbonates in these fractures is evidence that these zones are active flow paths for groundwater. Analyses of (super 87) Sr/ (super 86) Sr of the groundwater samples and a limited number of carbonate samples from the cores have also been done. The groundwater (super 87) Sr/ (super 86) Sr averaged 0.7072. The (super 87) Sr/ (super 86) Sr of the carbonates ranged from 0.7067 for a sample with a delta (super 18) O value of -6.8ppm to 0.7086 for a sample with delta (super 18) O of +1.3ppm. The close correspondence between the delta (super 18) O and (super 87) Sr/ (super 86) Sr values of carbonate minerals in these fracture zones and the isotopic compositions of the groundwater provide further evidence that they are active groundwater flow pathways and suggest that the isotopic compositions of the carbonate minerals do provide a useful tool for identifying zones of active fluid flow. JF - American Geophysical Union Fall Meeting AU - Conrad, M E AU - Onishi, C T AU - Bill, M AU - Christensen, J N AU - Karasaki, K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H12A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - oxygen KW - isotopes KW - fluid dynamics KW - stable isotopes KW - radioactive waste KW - ground water KW - California KW - carbon KW - hydrodynamics KW - Wildcat Fault KW - faults KW - alkaline earth metals KW - isotope ratios KW - C-13/C-12 KW - O-18/O-16 KW - hydrochemistry KW - porosity KW - flows KW - Sr-87/Sr-86 KW - metals KW - Hayward Fault KW - waste disposal KW - strontium KW - permeability KW - fault zones KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686062043?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Isotopic+techniques+for+identifying+active+groundwater+flow+along+a+complex+fault+zone+associated+with+the+Hayward+fault+system&rft.au=Conrad%2C+M+E%3BOnishi%2C+C+T%3BBill%2C+M%3BChristensen%2C+J+N%3BKarasaki%2C+K%3BAnonymous&rft.aulast=Conrad&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; C-13/C-12; California; carbon; fault zones; faults; flows; fluid dynamics; ground water; Hayward Fault; hydrochemistry; hydrodynamics; isotope ratios; isotopes; metals; O-18/O-16; oxygen; permeability; porosity; radioactive waste; Sr-87/Sr-86; stable isotopes; strontium; United States; waste disposal; water quality; Wildcat Fault ER - TY - JOUR T1 - Deformation in the Berkeley Hills; the influence of geological and fault structure on hydrology within the Wildcat fault zone, Berkeley, California AN - 1686061800; 2015-050320 AB - The Wildcat Fault (WCF) in the Berkeley Hills of California is a splay of the Hayward Fault that shows an estimated total right-lateral displacement of 14 km. All displacement is apparently pre-Holocene. The WCF has been mapped at regional scale as a contact juxtaposing Miocene and Pliocene fluvial conglomerates, siltstones, and mudstones of the Orinda Formation with similar age shallow marine conglomerates and sandstones of the San Pablo Group against the middle Miocene marine sandstones, shales, and cherts of the Claremont Formation. We excavated five trenches and drilled four exploratory core holes. Three core holes were vertical and one was inclined and designed to intersect the trace of the WCF. Petrographic and XRD analysis of core from the Claremont Formation indicate the presence of carbonate, laminated shale and siliceous shale, arkosic sandstone with glauconite, and marine microfossils (i.e. foraminifera). Foraminifera were also found in the mudstones and siltstones of the Orinda Formation, and fragments of marine mollusks in the conglomerates and sandstones of San Pablo Group. Carbonate and marine fossils were surprisingly abundant in all geological units suggesting a dominant shallow marine depositional environment for the study area. Deformation within the Wildcat fault zone is widespread; at least eleven major faults have been identified in the borings. Although the vertical borings are only 60 to 80 m apart, no stratigraphic correlation is possible. Analyses of cores indicate that fault rocks, including breccia, gouge, cataclasite, and foliated cataclasite, are related to several stages and degrees of deformation. The hydrology of the WCF is influenced by style of deformation. Zones of cataclasite, gouge, and foliated cataclasite apparently act as barriers to fluid flow, as they do not respond to hydraulic testing. However, the brecciated and highly fractured zones are often preferred pathways for fluid movement. The most recent, yet still pre-Holocene, fault activity corresponds to a zone of intense fracturing and high fluid flow in a zone situated between a depths of 170 to 214 m in the inclined borehole. In this zone, the amount and thickness of carbonate veins increases with depth as with deformation. Results from isotopic analysis of delta 18O and delta 13C ratios from carbonate veins suggest they are in equilibrium with present day groundwater. A new borehole is being drilled to determine the location of an extension of the WCF, and to better define the fault geometry and hydrology in the Berkeley hills. This study suggests that the WCF has a more complex deformation history than we previously expected. JF - American Geophysical Union Fall Meeting AU - Onishi, C T AU - Karasaki, K AU - Conrad, M E AU - Goto, J AU - Ueta, K AU - Ito, H AU - Tanaka, S AU - Hamada, T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H13A EP - 1170 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hydrology KW - Quaternary KW - Wildcat fault zone KW - characterization KW - Berkeley Hills KW - Alameda County California KW - deformation KW - Holocene KW - ground water KW - Berkeley California KW - history KW - Cenozoic KW - California KW - San Padro Group KW - Orinda Formation KW - faults KW - fault zones KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686061800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Deformation+in+the+Berkeley+Hills%3B+the+influence+of+geological+and+fault+structure+on+hydrology+within+the+Wildcat+fault+zone%2C+Berkeley%2C+California&rft.au=Onishi%2C+C+T%3BKarasaki%2C+K%3BConrad%2C+M+E%3BGoto%2C+J%3BUeta%2C+K%3BIto%2C+H%3BTanaka%2C+S%3BHamada%2C+T%3BAnonymous&rft.aulast=Onishi&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Alameda County California; Berkeley California; Berkeley Hills; California; Cenozoic; characterization; deformation; fault zones; faults; ground water; history; Holocene; hydrology; Orinda Formation; Quaternary; San Padro Group; United States; Wildcat fault zone ER - TY - JOUR T1 - Evaluation of prediction uncertainty of uranium transport in small scale field experiments AN - 1686059277; 2015-050303 AB - Prediction of subsurface reactive transport of hexavalent uranium (U(VI)) is challenging because of the inherent complexity of both the subsurface physical structure and the geochemical processes. These systems are inherently open and amenable to multiple plausible conceptual models. Uncertainty analyses are being applied to evaluate alternative conceptual models of uranium adsorption and desorption for simulating U(VI) transport observed in tracer tests conducted in a heterogeneous alluvial aquifer near Naturita, CO site where the groundwater is contaminated with U(VI). Two tracer tests were conducted by extracting contaminated groundwater and then either increasing or decreasing the alkalinity of the pumped groundwater and finally injecting the solution back into the aquifer after the addition of a KBr tracer. Increasing the alkalinity of the injected water from 8 to 23 meq/L initially caused the U(VI) measured in wells located 1-2.5m downgradient to increase from 4 mu M to 11 mu M which was followed by a decrease in U(VI) to as low as 2 mM and then gradually relaxing to the initial concentration. The experiment with the decreased alkalinity followed the opposite trend with U(VI) concentrations initially decreasing followed by an increase above ambient conditions. Observed breakthrough curves at five observation wells were complex and often had multiple bromide peaks indicating physical heterogeneity which was represented in the reactive transport model by multiple flowpaths to the observation well. Alternative geochemical models that had different uranium adsorption reactions with both weak and strong sites were simulated by either local chemical equilibrium, a single-rate mass transfer model, or a multirate mass transfer model. Model probabilities calculated using Kashyap Information Criterion values showed that all adsorption models with significant probability included at least one uranyl-dicarbonato surface complex. Application of the Bayesian Model Averaging (BMA) method demonstrated that model averaging generally provided superior predictive performance relative to predictions made from a single model. The calibrated models are being further tested to evaluate their predictive capability for the experiment with decreased alkalinity. JF - American Geophysical Union Fall Meeting AU - Curtis, G P AU - Ye, M AU - Kohler, M AU - Meyer, P D AU - Hay, M B AU - Yabusaki, S AU - Davis, J A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H12D EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water quality KW - monitoring KW - pollutants KW - prediction KW - pollution KW - hydrochemistry KW - ground water KW - evaluation KW - aquifers KW - alluvium aquifers KW - transport KW - metals KW - tracers KW - alkalinity KW - uranium KW - actinides KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686059277?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluation+of+prediction+uncertainty+of+uranium+transport+in+small+scale+field+experiments&rft.au=Curtis%2C+G+P%3BYe%2C+M%3BKohler%2C+M%3BMeyer%2C+P+D%3BHay%2C+M+B%3BYabusaki%2C+S%3BDavis%2C+J+A%3BAnonymous&rft.aulast=Curtis&rft.aufirst=G&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; alkalinity; alluvium aquifers; aquifers; evaluation; ground water; heavy metals; hydrochemistry; metals; monitoring; pollutants; pollution; prediction; tracers; transport; uranium; water quality ER - TY - JOUR T1 - The August 2011 Virginia and Colorado earthquake sequences; does stress drop depend on strain rate? AN - 1686058839; 2015-048386 AB - Our preliminary analysis of the August 2011 Virginia earthquake sequence finds the earthquakes to have high stress drops, similar to those of recent earthquakes in NE USA, while those of the August 2011 Trinidad, Colorado, earthquakes are moderate--in between those typical of interplate (California) and the east coast. These earthquakes provide an unprecedented opportunity to study such source differences in detail, and hence improve our estimates of seismic hazard. Previously, the lack of well-recorded earthquakes in the eastern USA severely limited our resolution of the source processes and hence the expected ground accelerations. Our preliminary findings are consistent with the idea that earthquake faults strengthen during longer recurrence times and intraplate faults fail at higher stress (and produce higher ground accelerations) than their interplate counterparts. We use the empirical Green's function (EGF) method to calculate source parameters for the Virginia mainshock and three larger aftershocks, and for the Trinidad mainshock and two larger foreshocks using IRIS-available stations. We select time windows around the direct P and S waves at the closest stations and calculate spectral ratios and source time functions using the multi-taper spectral approach (eg. Viegas et al., JGR 2010). Our preliminary results show that the Virginia sequence has high stress drops ( approximately 100-200 MPa, using Madariaga (1976) model), and the Colorado sequence has moderate stress drops ( approximately 20 MPa). These numbers are consistent with previous work in the regions, for example the Au Sable Forks (2002) earthquake, and the 2010 Germantown (MD) earthquake. We also calculate the radiated seismic energy and find the energy/moment ratio to be high for the Virginia earthquakes, and moderate for the Colorado sequence. We observe no evidence of a breakdown in constant stress drop scaling in this limited number of earthquakes. We extend our analysis to a larger number of earthquakes and stations. We calculate uncertainties in all our measurements, and also consider carefully the effects of variation in available bandwidth in order to improve our constraints on the source parameters. JF - American Geophysical Union Fall Meeting AU - Abercrombie, R E AU - Viegas, G AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S11B EP - 2240 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - P-waves KW - body waves KW - Virginia KW - strain KW - stress KW - Green function KW - elastic waves KW - Colorado earthquake 2011 KW - seismicity KW - Virginia earthquake 2011 KW - seismic waves KW - Colorado KW - earthquakes KW - S-waves KW - faults KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686058839?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+August+2011+Virginia+and+Colorado+earthquake+sequences%3B+does+stress+drop+depend+on+strain+rate%3F&rft.au=Abercrombie%2C+R+E%3BViegas%2C+G%3BAnonymous&rft.aulast=Abercrombie&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/S/sessions/S11B/abstracts/S11B-2240.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - SuppNotes - Accessed on Dec. 12, 2014 N1 - Last updated - 2015-06-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - body waves; Colorado; Colorado earthquake 2011; earthquakes; elastic waves; faults; Green function; P-waves; S-waves; seismic waves; seismicity; strain; stress; United States; Virginia; Virginia earthquake 2011 ER - TY - JOUR T1 - BISICLES; a high-performance adaptive ice sheet model AN - 1676593655; 2015-038232 AB - Ice sheet dynamics span a wide range of spatial scales. There is evidence that better than 1 km resolution is necessary to accurately resolve the dynamics of grounding lines; however, resolving continental-scale ice sheets at such fine scales is prohibitively expensive computationally. At the same time, there are large regions where such fine resolution is unnecessary and would represent a waste of computational resources. We have developed an ice sheet model which uses adaptive mesh refinement (AMR) in the horizontal directions to locally refine the computational mesh in regions where fine resolution is required to accurately resolve ice sheet dynamics, while using coarser meshes in regions where such fine resolution is unneeded allows for substantial savings in computational effort. In addition, the use of the vertically-integrated momentum approximation of Schoof and Hindmarsh (2010) allows still greater computational efficiency. The use of the Chombo AMR framework greatly simplified the development of a high-performance scalable implementation of our AMR algorithm, and coupling with the existing Glimmer-CISM ice-sheet model code allows its use with global and regional climate models like CESM. To demonstrate its effectiveness, we present examples of our approach including application to continental-scale modeling. JF - American Geophysical Union Fall Meeting AU - Martin, D F AU - Cornford, S L AU - Lipscomb, W H AU - Price, S F AU - Ranken, D M AU - Ng, E G AU - Payne, A J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract DI23A EP - 2082 PB - American Geophysical Union, Washington, DC VL - 2011 KW - global KW - coupling KW - ice sheets KW - models KW - Antarctic ice sheet KW - Antarctica KW - BISICLES KW - dynamics KW - adaptive mesh refinement KW - applications KW - glacial geology KW - algorithms KW - climate KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676593655?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=BISICLES%3B+a+high-performance+adaptive+ice+sheet+model&rft.au=Martin%2C+D+F%3BCornford%2C+S+L%3BLipscomb%2C+W+H%3BPrice%2C+S+F%3BRanken%2C+D+M%3BNg%2C+E+G%3BPayne%2C+A+J%3BAnonymous&rft.aulast=Martin&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-04-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - adaptive mesh refinement; algorithms; Antarctic ice sheet; Antarctica; applications; BISICLES; climate; coupling; dynamics; glacial geology; global; ice sheets; models ER - TY - JOUR T1 - Nature and reactivity of sediment-associated spiked Fe(II) toward abiotic uranium reduction AN - 1673367824; 2015-034667 AB - Uranium (U) is a priority contaminant at U.S. Department of Energy Uranium Mill Tailings Remedial Action (UMTRA) sites. Mobility of U in contaminated aquifers is governed by a complex assortment of site-specific biogeochemical and hydrological properties, sediment Fe-mineralogy, and redox status. There is a particular interest in understanding factors governing U attenuation to Fe-mineralogy under natural conditions. Thus, the goal of this work is to investigate geochemical effects of Fe redox state on U mobility under conditions relevant to the Rifle aquifer, an UMTRA site. Particularly, the focus is to gain insights into the degree and mechanism of Fe(II) uptake by Rifle sediments that exhibit complex Fe-mineralogy composed of various Fe-oxides and Fe-containing clays and on the possibility of abiotic U(VI) reduction by adsorbed Fe(II) and secondary Fe(II) minerals. Earlier field studies where Fe(II)-amended groundwater was injected into the Rifle aquifer indicated: a) Fe(II) uptake by Rifle sediments is extensive and b) abiotic U(VI) reduction by Fe(II) may be important at pH 8.3. Batch reactions between Rifle sediment and (super 57) Fe(II) ( (super 57) Fe isotope is a Mossbauer sensitive nuclide with a natural abundance of 2%) under conditions relevant to the Rifle aquifer indicated that, depending on the solution conditions: a) a large fraction of the spiked (super 57) Fe(II) (55-100%) is oxidized to (super 57) Fe(III) on sediment surfaces and, at pH 7.2, the degree of oxidation decreased as Fe(II) loading increased; b) the (super 57) Fe(II)-oxidation is coupled to the transformation of an intrinsic ferrihydrite-like mineral to a nanoparticulate, Fe(II)/ (super 57) Fe(III)-like mineral phase, and c) increasing pH from 7.2 to 8.3 and including carbonate in the medium has little or no effect on percent oxidation or mineral transformation. Preliminary X-ray absorption near edge structure (XANES) spectroscopy studies suggested that 20-30% of abiotic U(VI) reduction occurred, both at pH 7.2 and 8.3, in the sediments containing 39 umol/g of spiked (super 57) Fe(II). Thus, the combined field and laboratory studies suggest that both the amount of sorbed Fe(II) and the system's pH appear to play a significant role in reduction of U(VI) to U(IV). Additional experiments are in progress to: a) determine the type of secondary Fe(II) mineral formation [e.g., siderite, Fe(OH) (sub 2) ] as a function of both the amount of spiked Fe(II) content and assortment of geochemical parameters, such as pH, carbonate content/alkalinity, and redox status, as well as their reactivity toward U(VI), and b) U speciation by extended X-ray adsorption spectroscopy (EXAFS). JF - American Geophysical Union Fall Meeting AU - Kukkadapu, Ravi K AU - Fox, P M AU - Davis, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1054 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - carbonate ion KW - pollutants KW - pollution KW - iron KW - ground water KW - aquifers KW - reactivity KW - metals KW - sediments KW - Rifle Aquifer KW - uranium KW - Colorado KW - actinides KW - pH KW - heavy metals KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367824?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Nature+and+reactivity+of+sediment-associated+spiked+Fe%28II%29+toward+abiotic+uranium+reduction&rft.au=Kukkadapu%2C+Ravi+K%3BFox%2C+P+M%3BDavis%2C+J%3BAnonymous&rft.aulast=Kukkadapu&rft.aufirst=Ravi&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; aquifers; carbonate ion; Colorado; ground water; heavy metals; iron; metals; pH; pollutants; pollution; reactivity; Rifle Aquifer; sediments; United States; uranium; water quality ER - TY - JOUR T1 - Different enzymes are involved in anaerobic, nitrate-dependent U(IV) and Fe(II) oxidation in Thiobacillus denitrificans AN - 1673367561; 2015-034668 AB - Thiobacillus denitrificans is a widespread, obligate chemolithoautotrophic bacterium that is capable of anaerobic, nitrate-dependent U(IV) and Fe(II) oxidation. Both of these processes can mediate the mobility of uranium in contaminated aquifers and thereby influence the long-term efficacy of in situ reductive immobilization of uranium at DOE sites. T. denitrificans has been found at uranium-contaminated sites, including a contaminated aquifer at Oak Ridge National Laboratory. We previously reported that two membrane-associated, diheme, c-type cytochromes (a c (sub 4) cytochrome, Tbd (sub 0187) , and a c (sub 5) cytochrome, Tbd (sub 0146) ) were involved in nitrate-dependent U(IV) oxidation in T. denitrificans. To date, these are the only genes identified to be involved in this process. In this poster, we report on work with T. denitrificans focused on determining whether the enzymes that were demonstrated to be involved in anaerobic, nitrate-dependent U(IV) oxidation are also involved in nitrate-dependent Fe(II) oxidation. Using a genetic system in T. denitrificans that enables us to create insertion mutants and complement them in trans, we constructed a series of insertion mutants. These included strains with mutations in the genes known to be associated with U(IV) oxidation (Tbd (sub 0146) and Tbd (sub 0187) ) as well as other genes encoding membrane-associated c-type cytochromes (a group of proteins that we hypothesize to be catalyzing Fe(II) oxidation). Anaerobic cell suspension assays were carried out to determine whether any of these mutants were defective in nitrate-dependent Fe(II) oxidation. We observed that the Tbd (sub 0146) and Tbd (sub 0187) mutants were not defective in nitrate-dependent Fe(II) oxidation, nor were any of the other c-type cytochrome mutants tested (including a Tbd (sub 0146) -Tbd (sub 0187) double mutant). The finding that different enzymes are associated with nitrate-dependent Fe(II) and U(IV) oxidation has led us to pursue genome-wide studies in T. denitrificans to determine the genes associated with nitrate-dependent Fe(II) oxidation. JF - American Geophysical Union Fall Meeting AU - Zhou, P AU - Beller, H R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1055 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - Oak Ridge National Laboratory KW - water quality KW - trophic analysis KW - oxidation KW - genome KW - enzymes KW - environmental analysis KW - iron KW - ground water KW - aquifers KW - organic compounds KW - Thiobacillus KW - metals KW - denitrification KW - bacteria KW - Tennessee KW - anaerobic environment KW - uranium KW - nitrate ion KW - proteins KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Different+enzymes+are+involved+in+anaerobic%2C+nitrate-dependent+U%28IV%29+and+Fe%28II%29+oxidation+in+Thiobacillus+denitrificans&rft.au=Zhou%2C+P%3BBeller%2C+H+R%3BAnonymous&rft.aulast=Zhou&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; anaerobic environment; aquifers; bacteria; denitrification; environmental analysis; enzymes; genome; ground water; iron; metals; nitrate ion; Oak Ridge National Laboratory; organic compounds; oxidation; proteins; Tennessee; Thiobacillus; trophic analysis; United States; uranium; water quality ER - TY - JOUR T1 - Impacts of acetate biostimulation for uranium bioreduction on aqueous arsenic geochemistry AN - 1673367278; 2015-034677 AB - Recent research has shown that stimulating microbial growth and reduction of uranium through acetate injections may help to immobilize uranium in the subsurface, but it has also been shown to increase the concentration of arsenic in the groundwater. Two uranium bioreduction experiments at the Rifle, CO former uranium mill site were investigated for the impacts on arsenic concentration and speciation. Ion chromatography was used to separate arsenic species and ICP-MS was used as an arsenic specific detector. In the 2009 experiment, the system entered sulfate reduction and high concentrations of total arsenic were observed downgradient, increasing from about 1 uM in the upgradient, oxidized samples to 10 uM downgradient. Arsenic speciation changed from predominantly arsenate to mostly arsenite when entering iron reduction. In addition, up to four more arsenic-containing species are observed as the samples reach sulfate reduction, and more sulfide is present to form thioarsenic species. For a 2010 experiment the system did not become as reduced, and lower levels of arsenic and fewer thioarsenic species were observed. Stopping before sulfate reduction allows some arsenic release, but prevents formation of highly mobile thioarsenic species contributing to the highest arsenic spikes. JF - American Geophysical Union Fall Meeting AU - Stucker, V AU - Ranville, J F AU - Giloteaux, L AU - Williams, K H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1065 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - biodegradation KW - Garfield County Colorado KW - pollutants KW - arsenic KW - pollution KW - mass spectra KW - bioremediation KW - remediation KW - ground water KW - ICP mass spectra KW - environmental management KW - Rifle Colorado KW - Thiobacillus KW - soil pollution KW - metals KW - bacteria KW - uranium KW - spectra KW - Colorado KW - actinides KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Impacts+of+acetate+biostimulation+for+uranium+bioreduction+on+aqueous+arsenic+geochemistry&rft.au=Stucker%2C+V%3BRanville%2C+J+F%3BGiloteaux%2C+L%3BWilliams%2C+K+H%3BAnonymous&rft.aulast=Stucker&rft.aufirst=V&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; arsenic; bacteria; biodegradation; bioremediation; Colorado; environmental management; Garfield County Colorado; ground water; ICP mass spectra; mass spectra; metals; pollutants; pollution; remediation; Rifle Colorado; soil pollution; spectra; Thiobacillus; United States; uranium; water quality ER - TY - JOUR T1 - Estimating vadose zone drainage from a capped seepage basin, F area, Savannah River Site AN - 1673367153; 2015-034689 AB - Large volumes of waste solutions were commonly discharged into unlined seepage basins at many different facilities in the past. Plutonium was extracted from depleted uranium from 1955 to 1988 at the F-Area within the Savannah River Site, with contaminated process waters disposed of in permeable seepage basins. The primarily acidic solutions contained radioactive components (including tritium, (super 129) I, and multiple isotopes of U, Pu, Sr, and Cs), elevated nitrate, and some metals (Hg, Pb, Cd). Basin 3 was the largest F-Area seepage basin, covering 2.0 hectare, with the water table typically at about 20 m below the soil surface. The local groundwater flows at an average velocity of 200 m/y in the approximately 10 m thick shallow aquifer, and is underlain by the low permeability Tan Clay. We used nearly 20 years of groundwater quality data from a monitoring well immediately downstream of Basin 3 to estimate the post-closure drainage of waste solutions through its underlying vadose zone, into the shallow aquifer. The measurements of tritium, nitrate, and specific conductance, were used as plume tracers in our estimates of vadose zone drainage. These calculations indicate that early stages of post-closure waste drainage occurred with high fluxes ( nearly equal 1 m/y), and quickly declined. However, even after 20 years, drainage continues at a low but significant rate of several cm/y. These estimated drainage fluxes can help constrain predictions on the waste plume behavior, especially with respect to its emerging trailing gradient and anticipated time scales suitable for monitored natural attenuation. JF - American Geophysical Union Fall Meeting AU - Wan, J AU - Tokunaga, T K AU - Denham, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1078 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - clay KW - South Carolina KW - isotopes KW - plutonium KW - unsaturated zone KW - lead KW - seepage KW - radioactive isotopes KW - cesium KW - sediments KW - cadmium KW - nitrate ion KW - heavy metals KW - mercury KW - alkaline earth metals KW - clastic sediments KW - pollutants KW - alkali metals KW - pollution KW - soil pollution KW - metals KW - nuclear facilities KW - uranium KW - Savannah River Site KW - actinides KW - strontium KW - permeability KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Estimating+vadose+zone+drainage+from+a+capped+seepage+basin%2C+F+area%2C+Savannah+River+Site&rft.au=Wan%2C+J%3BTokunaga%2C+T+K%3BDenham%2C+M%3BAnonymous&rft.aulast=Wan&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; alkali metals; alkaline earth metals; cadmium; cesium; clastic sediments; clay; heavy metals; isotopes; lead; mercury; metals; nitrate ion; nuclear facilities; permeability; plutonium; pollutants; pollution; radioactive isotopes; Savannah River Site; sediments; seepage; soil pollution; South Carolina; strontium; United States; unsaturated zone; uranium ER - TY - JOUR T1 - Evaluating the risk of chromium reoxidation in aquifer sediments following a reductive bioremediation treatment AN - 1673367081; 2015-034663 AB - Remediation of chromium contamination typically involves reducing the toxic and soluble hexavalent form, Cr(VI), to the relatively harmless and mostly immobile trivalent state, Cr(III). The objective of this study is to investigate the potential for reduced chromium precipitates to be remobilized under oxidizing conditions that are expected to be prevalent some time after the bioremediation treatment is completed. In an initial phase of the experiment, reduction under anaerobic conditions was observed for over 12 months by subjecting flow-through columns containing homogenized sediments from the Hanford 100H aquifer to different dominant electron acceptors, i.e. NO (sub 3) (super -) , Fe(III), or SO (sub 4) (super 2-) , in the presence of 5 mu M Cr(VI) and 5 mM lactate. Cr(VI) was depleted in the effluent solutions of the nitrate-treated columns, all of which exhibited denitrification, as well as in sulfate-amended columns in which fermentative conditions became dominant (with a minor amount of sulfate reduction). In the second phase of the study, oxygenated water with 2 mM nitrate was flowed through the denitrifying and fermentative columns for several months, without addition of Cr(VI) or lactate. The results show that the chromium that precipitated in the denitrifying columns was steadily mobilized under the oxidizing conditions, although the concentration of Cr(VI) in the effluent remained low (<0.25 mu M). However, measurable Cr(VI) was not detected in the effluent from the fermentative sulfate-amended column. Reducing conditions were sustained in the fermentative column despite the continuous influx of O (sub 2) , as indicated by the decrease of nitrate and accumulation of nitrite, potentially due to the presence of sulfides precipitated during the initial reducing phase of the experiment. The results from this study suggest that the biogeochemical conditions present during the reductive treatment phase can substantially impact the long-term sustainability of the remediation effort. JF - American Geophysical Union Fall Meeting AU - Varadharajan, C AU - Nico, P S AU - Yang, L AU - Han, R AU - Bill, M AU - Larsen, J AU - Van Hise, A AU - Molins, S AU - Steefel, C AU - Conrad, M E AU - Lim, H AU - Brodie, E L AU - Beller, H R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1050 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - Washington KW - sulfate ion KW - pollutants KW - biochemistry KW - pollution KW - Hanford Site KW - bioremediation KW - remediation KW - ground water KW - aquifers KW - toxicity KW - metals KW - Desulfovibrio KW - bacteria KW - risk assessment KW - nitrite ion KW - heavy metals KW - chromium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673367081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluating+the+risk+of+chromium+reoxidation+in+aquifer+sediments+following+a+reductive+bioremediation+treatment&rft.au=Varadharajan%2C+C%3BNico%2C+P+S%3BYang%2C+L%3BHan%2C+R%3BBill%2C+M%3BLarsen%2C+J%3BVan+Hise%2C+A%3BMolins%2C+S%3BSteefel%2C+C%3BConrad%2C+M+E%3BLim%2C+H%3BBrodie%2C+E+L%3BBeller%2C+H+R%3BAnonymous&rft.aulast=Varadharajan&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; biochemistry; bioremediation; chromium; Desulfovibrio; ground water; Hanford Site; heavy metals; metals; nitrite ion; pollutants; pollution; remediation; risk assessment; sulfate ion; toxicity; United States; Washington; water quality ER - TY - JOUR T1 - Field scale controls of uranium bioreduction efficacy; the role of physicochemical heterogeneity AN - 1673366273; 2015-034679 AB - It has been demonstrated in laboratory systems that bacteria from natural environments can reduce U(VI) to immobile U(IV), therefore preventing the spreading of U(VI). The ultimate rate and efficacy of bioreduction at the field scale, however, is often challenging to quantify because it depends on the characteristics of field sites. In this work, the field scale efficacy of uranium bioreduction is quantified using an integrated approach. The approach combines field data, inverse and forward hydrological and reactive transport modeling, and upscaling. The approach is used to explore the impact of local scale (tens of centimeters) parameters and processes on field scale (tens of meters) system responses to biostimulation treatments and the controls of physicochemical heterogeneity on bioreduction efficacy. Using the biostimulation experiments at the Department of Energy Old Rifle site as an example, our results show that the spatial distribution of hydraulic conductivity and solid phase mineral (Fe(III)) play a critical role in determining the field-scale bioreduction efficacy. Due to the dependence on Fe-reducing bacteria, the overall U(VI) bioreduction efficacy was found to be largely controlled by the abundance of Fe(III) minerals at the vicinity of the injection wells. In addition, if there is preferential flow paths that connect injection wells to down gradient Fe(III) abundant areas, uranium bioreduction efficacy can also be enhanced. JF - American Geophysical Union Fall Meeting AU - Li, L AU - Gawande, N AU - Kowalsky, M B AU - Steefel, C AU - Hubbard, S S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1068 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water quality KW - biodegradation KW - pollutants KW - physicochemical properties KW - pollution KW - bioremediation KW - iron KW - remediation KW - ground water KW - aquifers KW - soil pollution KW - metals KW - uranium KW - hydraulic conductivity KW - efficiency KW - actinides KW - field studies KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673366273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Field+scale+controls+of+uranium+bioreduction+efficacy%3B+the+role+of+physicochemical+heterogeneity&rft.au=Li%2C+L%3BGawande%2C+N%3BKowalsky%2C+M+B%3BSteefel%2C+C%3BHubbard%2C+S+S%3BAnonymous&rft.aulast=Li&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; aquifers; biodegradation; bioremediation; efficiency; field studies; ground water; hydraulic conductivity; iron; metals; physicochemical properties; pollutants; pollution; remediation; soil pollution; uranium; water quality ER - TY - JOUR T1 - Metagenomic and meta-transcriptomic analysis of a chromate-reducing aquifer microbial community AN - 1673365894; 2015-034665 AB - As part of a highly interdisciplinary study of in situ reductive immobilization of Cr at DOE's Hanford 100H site, we are developing a systems biology approach (employing metagenomic and meta-transcriptomic data) to identify highly expressed genes in the native microbial community under conditions of interest, without requiring any a priori sequence information or assumptions about what processes might be occurring. A key scientific goal is to determine if there are diagnostic biomolecular signatures indicative of important aquifer biogeochemical processes that can be used to (a) help discriminate between direct (enzymatic) and indirect (abiotic) oxidation-reduction processes relevant to bioremediation and (b) to inform and constrain reactive transport models even when geochemical field measurements do not reveal all relevant processes. We are in the process of collecting metagenomic and meta-transcriptomic sequence information from various experimental systems under conditions relevant to in situ chromate reduction at Hanford 100H. This poster focuses on Hanford microcosm studies. To characterize functional changes in an aquifer-derived, chromate-reducing microbial community as it transitions successively through electron-accepting conditions relevant to the Hanford subsurface, we inoculated anaerobic microcosms with groundwater from the Cr-contaminated Hanford 100H site and supplemented them with lactate and electron acceptors present at the site [e.g., nitrate, sulfate, and Fe(III)]. Metagenomic and meta-transcriptomic "snapshots" were taken during denitrification, sulfate and Fe(III) reduction, and nitrate-dependent oxidation of Fe(II) and sulfide. We conducted Illumina paired-end sequencing, assembled with ABySS-pe, and initially annotated using MG-RAST and CAMERA. cDNA samples for meta-transcriptome sequencing represented mRNA enriched using a new subtractive hybridization method resulting in 61-78% of reads mapping to their corresponding metagenomes. Observations from the analyses to date include the following: (1) consistent phylogenetic community transitions were documented by 16S rRNA pyrotag and metagenome sequence data as Hanford microcosms passed successively through denitrifying conditions (dominated initially by beta-Proteobacteria) to fermentative and sulfate- and iron-reducing conditions (dominated by Firmicutes); (2) the greatest diversity of denitrification genes occurred during initial denitrifying phase; (3) high expression of nitrate reductase (nar) and S oxidation (soxWXYZABCD) genes occurred after nitrate was added to cultures following sulfate-reducing phase, even though S oxidation was not detectable based on sulfate measurements; and (4) highly expressed genes in Hanford microcosms and groundwater included "hypothetical proteins", which supports the monitoring approach that we are pursuing, namely, to focus on highly expressed genes specific to Hanford rather than genes chosen a priori. JF - American Geophysical Union Fall Meeting AU - Beller, H R AU - Lim, H AU - Han, R AU - Karaoz, U AU - Brodie, E L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1052 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - bioremediation KW - chromates KW - remediation KW - ground water KW - aquifers KW - metals KW - denitrification KW - Desulfovibrio KW - bacteria KW - water pollution KW - heavy metals KW - chromium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673365894?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Metagenomic+and+meta-transcriptomic+analysis+of+a+chromate-reducing+aquifer+microbial+community&rft.au=Beller%2C+H+R%3BLim%2C+H%3BHan%2C+R%3BKaraoz%2C+U%3BBrodie%2C+E+L%3BAnonymous&rft.aulast=Beller&rft.aufirst=H&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; bioremediation; chromates; chromium; denitrification; Desulfovibrio; ground water; Hanford Site; heavy metals; metals; pollutants; pollution; remediation; United States; Washington; water pollution; water quality ER - TY - JOUR T1 - Imaging of bioreduced sediment; Tc(IV/VII) and Fe(II/III) redox kinetics and DTPA as a conservative tracer AN - 1673365867; 2015-034682 AB - Microbially mediated reduction of sediment bound iron from Fe(III) to Fe(II) following electron donor augmentation holds great promise for the sequestration of environmental contaminants including technetium, uranium, and chromium. We have used gamma camera imaging to measure soluble 99mTc concentrations in microcosm experiments; tracking the rate of reduction of 99mTc(IV)-pertechnetate, evaluating 99mTc-DTPA as a conservative hydrologic flow tracer, and examining the dynamics of redox cycling of both Fe(II)/Fe(III) and Tc(IV)/Tc(VII) in sediment from the DOE-IRFC site at Rifle, CO. Eleven experiments were performed on 4 water/sediment microcosms over 4 weeks, before and after microcosms were augmented with 6mM acetate to stimulate microbially mediated reduction of Fe(III) to Fe(II). A summary of the experiments' data is given in the Figure 1. Data analysis methods of fitting concentration curves of 99mTc(VII) in solution to a dual exponential function gives a quantitative index Tc(VII) to Tc(IV) reduction rate in the presence of Fe(II). Following acetate amendment, the rate of Tc(VII) reduction progressively increased with time. A reoxidation experiment showed that oxygenating the microcosms oxidized Fe(II) to Fe(III), subsequently preventing Tc(VII) reduction, but with a return to anoxic conditions, bioreduction of Fe(III) occurred faster than before oxygenation, an observation that is particularly relevant to field-scale work. Another reoxygenation experiment showed that when in reducing conditions, sediment-bound Tc(IV) is rapidly resolublized to Tc(VII) with an increase in dissolved oxygen. 99mTc-DTPA proves to be a conservative tracer, showing little interaction with sediment in both Fe(III)-reducing and non-reducing conditions. These experiments show the utility of nuclear medicine tools and readily available radiotracers for non-invasive monitoring of sediment geochemistry and hydrologic properties during reactive transport. JF - American Geophysical Union Fall Meeting AU - Vandehey, N T AU - O'Neil, J P AU - Buchko, R AU - Druhan, J L AU - Moses, W W AU - Nico, P S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1071 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - Garfield County Colorado KW - iron KW - remediation KW - Rifle Colorado KW - transport KW - sediments KW - reactive transport KW - heavy metals KW - chromium KW - esters KW - technetium KW - monitoring KW - acetates KW - pollutants KW - pollution KW - bioremediation KW - organic compounds KW - soil pollution KW - metals KW - uranium KW - Colorado KW - actinides KW - field studies KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673365867?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Imaging+of+bioreduced+sediment%3B+Tc%28IV%2FVII%29+and+Fe%28II%2FIII%29+redox+kinetics+and+DTPA+as+a+conservative+tracer&rft.au=Vandehey%2C+N+T%3BO%27Neil%2C+J+P%3BBuchko%2C+R%3BDruhan%2C+J+L%3BMoses%2C+W+W%3BNico%2C+P+S%3BAnonymous&rft.aulast=Vandehey&rft.aufirst=N&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - acetates; actinides; bioremediation; chromium; Colorado; esters; field studies; Garfield County Colorado; heavy metals; iron; metals; monitoring; organic compounds; pollutants; pollution; reactive transport; remediation; Rifle Colorado; sediments; soil pollution; technetium; transport; United States; uranium; water quality ER - TY - JOUR T1 - Molecular-scale characterization of natural organic matter from A uranium contaminated aquifer and its utilization by native microbial communities AN - 1673365830; 2015-034675 AB - The availability and form of natural organic matter (NOM) strongly influences rates of microbial metabolism and associated redox processes in subsurface environments. This is an important consideration in metal-contaminated aquifers, such as the DOE's Rifle Integrated Field Research Challenge (IFRC) site, where naturally occurring suboxic conditions in groundwater may play an important function in controlling uranium mobility, and therefore the long-term stewardship of the site. Currently, the biophysiochemical processes surrounding the nature of the aquifer and its role in controlling the fate and transport of uranium are poorly understood. Using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) with electrospray ionization (ESI), we characterized dissolved organic matter (DOM) chemistry for three surface and groundwater sources at Rifle and assessed microbial utilization in batch incubation experiments. FT-ICR-MS uniquely offers ultrahigh mass measurement accuracy and resolving power for polar organics, in addition to enabling elemental composition assignments of these compounds. Samples were collected from the Colorado River, a shallow groundwater aquifer adjacent to the river, and a spring/seep discharge point upgradient from the aquifer. DOM was concentrated and purified from each source and analyzed using FT-ICR-MS with ESI. We identified between 6,000 and 7,000 formulae at each location, with the river sample having the smallest and the spring sample having the largest number of identified peaks. The groundwater and spring samples contained DOM with a large percentage of formulae containing nitrogen and sulfur species, while the river sample was dominated by carbon, hydrogen, and oxygen species. Less than 38% of the formulae were shared between any two samples, indicating a significant level of uniqueness across the samples. Unsaturated hydrocarbons, cellulose, and lipids were rapidly utilized by indigenous bacteria during a 24-day incubation period, and presumably transformed to more recalcitrant lignins and protein-type molecules. These findings indicate that FT-ICR-MS with ESI is an effective method for characterizing molecular-scale differences in DOM from complex environments. We also provide preliminary evidence that certain DOM fractions are more efficiently utilized by indigenous microbial communities and likely play an important role in controlling reducing conditions in heterogeneous subsurface environments. JF - American Geophysical Union Fall Meeting AU - Mouser, P J AU - Wilkins, M J AU - Williams, K H AU - Smith, D F AU - Pasa-Tolic, L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1062 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - Garfield County Colorado KW - lipids KW - data processing KW - characterization KW - pollution KW - ground water KW - fast Fourier transforms KW - Rifle Colorado KW - organic compounds KW - metals KW - Fourier analysis KW - risk assessment KW - uranium KW - Colorado KW - water pollution KW - actinides KW - heavy metals KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673365830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Molecular-scale+characterization+of+natural+organic+matter+from+A+uranium+contaminated+aquifer+and+its+utilization+by+native+microbial+communities&rft.au=Mouser%2C+P+J%3BWilkins%2C+M+J%3BWilliams%2C+K+H%3BSmith%2C+D+F%3BPasa-Tolic%2C+L%3BAnonymous&rft.aulast=Mouser&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; characterization; Colorado; data processing; fast Fourier transforms; Fourier analysis; Garfield County Colorado; ground water; heavy metals; lipids; metals; microorganisms; organic compounds; pollution; Rifle Colorado; risk assessment; United States; uranium; water pollution; water quality ER - TY - JOUR T1 - Microbially induced calcite precipitation for subsurface immobilization of contaminants AN - 1673365428; 2015-034664 AB - Subsurface radionuclide and metal contaminants throughout the U.S. Department of Energy (DOE) complex pose one of the greatest challenges for long-term stewardship. One promising stabilization mechanism for divalent trace ions, such as the short-lived radionuclide (super 90) Sr, is co-precipitation in calcite. We have found that calcite precipitation and co-precipitation of Sr can be accelerated by the activity of urea hydrolyzing microorganisms, that higher calcite precipitation rates can result in increased Sr partitioning, and that nutrient additions can stimulate ureolytic activity. To extend our understanding of microbially induced calcite precipitation (MICP) in an aquifer setting a continuous recirculation field experiment evaluating MICP was conducted at the Integrated Field Research Challenge (IFRC) site located at Rifle, CO. In this experiment, groundwater extracted from an onsite well was amended with urea (total mass of 42.5 kg) and molasses (a carbon and electron donor) and re-injected into a well approximately 4 meters up-gradient for a period of 12 days followed by 10 months of groundwater sampling and monitoring. Crosshole radar and electrical tomographic data were collected prior, during, and after the MICP treatment. The urea and molasses treatment resulted in an enhanced population of sediment associated urea hydrolyzing organisms as evidenced by increases in the number of ureC gene copies, increases in (super 14) C urea hydrolysis rates, and long-term observations of ammonium (a urea hydrolysis product) in the injection, extraction and down gradient monitoring wells. Permeability changes and increases in the calcite saturation indexes in the well field suggest that mineral precipitation has occurred; ongoing analysis of field samples seeks to confirm this. Changes in dielectric constant and electrical conductivity were used to interpret the spatiotemporal distribution of the injectate and subsequent calcite precipitation. Modeling activities are underway to define field-scale urea hydrolysis rates. JF - American Geophysical Union Fall Meeting AU - Smith, R W AU - Fujita, Y AU - Ginn, T R AU - Hubbard, S S AU - Dafflon, B AU - Delwiche, M AU - Gebrehiwet, T AU - Henriksen, J R AU - Peterson, J AU - Taylor, J L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1051 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Sr-90 KW - ammonium KW - alkaline earth metals KW - monitoring KW - isotopes KW - pollutants KW - pollution KW - hydrolysis KW - molasse KW - ground water KW - calcite KW - partitioning KW - radioactive isotopes KW - precipitation KW - metals KW - carbonates KW - strontium KW - permeability KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673365428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Microbially+induced+calcite+precipitation+for+subsurface+immobilization+of+contaminants&rft.au=Smith%2C+R+W%3BFujita%2C+Y%3BGinn%2C+T+R%3BHubbard%2C+S+S%3BDafflon%2C+B%3BDelwiche%2C+M%3BGebrehiwet%2C+T%3BHenriksen%2C+J+R%3BPeterson%2C+J%3BTaylor%2C+J+L%3BAnonymous&rft.aulast=Smith&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; ammonium; calcite; carbonates; ground water; hydrolysis; isotopes; metals; molasse; monitoring; partitioning; permeability; pollutants; pollution; precipitation; radioactive isotopes; Sr-90; strontium ER - TY - JOUR T1 - Modeling of Cr(VI) bioreduction under fermentative and denitrifying conditions AN - 1673365394; 2015-034662 AB - The mechanisms of bioreductive immobilization of Cr(VI) were investigated by reactive transport modeling of a set of flow-through column experiments performed using natural Hanford 100H aquifer sediment. The columns were continuously eluted with 5 mu M Cr(VI), 5 mM lactate as the electron donor, and selected electron acceptors (tested individually). Here we focus on the two separate experimental conditions that showed the most removal of Cr(VI) from solution: fermentation and denitrification. In each case, a network of enzymatic and abiotic reaction pathways was considered to interpret the rate of chromate reduction. The model included biomass growth and decay, and thermodynamic limitations on reaction rates, and was constrained by effluent concentrations measured by IC and ICP-MS and additional information from bacterial isolates from column effluent. Under denitrifying conditions, Cr(VI) reduction was modeled as co-metabolic with nitrate reduction based on experimental observations and previous studies on a denitrifying bacterium derived from the Hanford 100H aquifer. The reactive transport model results supported this interpretation of the reaction mechanism and were used to quantify the efficiency of the process. The models results also suggest that biomass growth likely relied on a nitrogen source other than ammonium (e.g. nitrate). Under fermentative conditions and based on cell suspension studies performed on a bacterial isolate from the columns, the model assumes that Cr(VI) reduction is carried out directly by fermentative bacteria that convert lactate into acetate and propionate. The evolution to complete lactate fermentation and Cr(VI) reduction took place over a week's time and simulations were used to determine an estimate for a lower limit of the rate of chromate reduction by calibration with the flow-through column experimental results. In spite of sulfate being added to these columns, sulfate reduction proceeded at a slow rate and was not well constrained. JF - American Geophysical Union Fall Meeting AU - Molins, S AU - Steefel, C AU - Yang, L AU - Beller, H R AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21A EP - 1049 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - ammonium KW - Washington KW - pollution KW - mass spectra KW - Hanford Site KW - ground water KW - aquifers KW - ICP mass spectra KW - transport KW - soil pollution KW - metals KW - denitrification KW - bacteria KW - sediments KW - fermentation KW - reactive transport KW - spectra KW - thermodynamic properties KW - nitrate ion KW - chromium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1673365394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling+of+Cr%28VI%29+bioreduction+under+fermentative+and+denitrifying+conditions&rft.au=Molins%2C+S%3BSteefel%2C+C%3BYang%2C+L%3BBeller%2C+H+R%3BAnonymous&rft.aulast=Molins&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - ammonium; aquifers; bacteria; chromium; denitrification; fermentation; ground water; Hanford Site; ICP mass spectra; mass spectra; metals; nitrate ion; pollution; reactive transport; sediments; soil pollution; spectra; thermodynamic properties; transport; United States; Washington ER - TY - JOUR T1 - Dryout of a steep hillslope during periods of extended seasonal drought AN - 1668232524; 2015-030468 AB - Studies investigating the mechanics of hillslope hydrology typically explore processes that are prominent as precipitation is transformed to runoff. In seasonally water-stressed environments such as arid Mediterranean climates, re-distribution of subsurface moisture during extended periods of seasonal drought is also a significant, though often ignored, component of the hydrologic system. During this period, ground moisture sustains vegetation for upwards of 6 months without replenishment, and researchers have suggested that weathered bedrock is a critical source of water during the summer drought. We have monitored a 4000 m2 hillslope in the Angelo Coast Range Reserve along the Eel River in Northern California to explore hydrologic processes. Since September 2007, devices for tracking saturation changes in soil and rock (e.g., TDR probes, Electrical Resistance Probes, Neutron logging), and climate attributes have been installed throughout the catchment. In addition, 7 deep wells up to nearly 30 m depth were drilled across the hillslope and water levels have been continuously monitored since then. Drilling revealed a thin (< 0.3 m) soil mantle overlying a fractured mudstone weathering profile that extends up to 20 m near the ridgetop and tapers downslope towards a bedrock lined channel named Elder Creek. Baseflow sustains Elder Creek year round. Vegetation at the site is dominated by Pseudostuga menziesii (Douglas Fir), Arbutus menziesii (Madrone), Quercus wislizeni (Interior live oak), Umbellularia californica (California Bay), Notholithocarpus densiflorus (Tan-bark oak) and Sequoia sempervirens (Redwood) trees. Average rainfall is about 2 m with nearly all of it occurring between November and April. For approximately six months during the warm summer, there is no recordable precipitation. We have observed that during the long precipitation-free period, there is significant reduction in the amount of water retained in the shallow soil/weathered rock profile, and in the location of the underlying water table. In both, the rate of decline is largest at the start of the summer, which then gradually decreases over the next few months. In the unsaturated rock zone, extending approximately 4-25m below the ground surface, there are small, though measurable, reductions in moisture content to depths less than 10 m. In the deeper unsaturated profile, there are no measurable changes in saturation. JF - American Geophysical Union Fall Meeting AU - Salve, R AU - Rempe, D M AU - Dietrich, W E AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H33E EP - 1356 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - hydrology KW - terrestrial environment KW - soil profiles KW - moisture KW - arid environment KW - Angelo Coast Range Reserve KW - Eel River KW - unsaturated zone KW - mechanical properties KW - atmospheric precipitation KW - vegetation KW - ground water KW - drought KW - California KW - recharge KW - weathered materials KW - parent materials KW - ecology KW - seasonal variations KW - Northern California KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1668232524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Dryout+of+a+steep+hillslope+during+periods+of+extended+seasonal+drought&rft.au=Salve%2C+R%3BRempe%2C+D+M%3BDietrich%2C+W+E%3BAnonymous&rft.aulast=Salve&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H33E/abstracts/H33E-1356.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-02 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Angelo Coast Range Reserve; arid environment; atmospheric precipitation; California; drought; ecology; Eel River; ground water; hydrology; mechanical properties; moisture; Northern California; parent materials; recharge; seasonal variations; soil profiles; terrestrial environment; United States; unsaturated zone; vegetation; weathered materials ER - TY - JOUR T1 - "Carbon in Underland"; a multidisciplinary approach to producing an informative animated video for the Center for Nanoscale Control of Geological CO (sub 2) AN - 1668231159; 2015-030553 AB - As part of the "Science for Our Nation's Energy Future, Summit and Forum", each of the 46 Energy Frontier Research Centers (EFRCs) created in 2009 by the US Department of Energy was invited to design a short, engaging film with the central goal to educate, inspire, and entertain an intelligent but not expert audience about the extraordinary science, innovation and people in their center. The Center for Nanoscale Control of Geological CO (sub 2) (NCGC) is an EFRC that is building a next generation understanding of molecular-to-pore-scale processes critical to controlling the flow,transport, and ultimate mineralization in porous rock media, in particular as applied to geologic sequestration of CO (sub 2) . In response to the invitation, the NCGC assembled a team that included several young scientists, the Center project manager, and members from the Public Affairs and Creative Services Office of the Lawrence Berkeley National Laboratory with the objective of preparing a submission. A videographer from the Creative Services Office was responsible for overall management including production, art direction, and editing, while scientists from the Center were responsible for scientific content and original storyline concept. The Center project manager facilitated the communication between team members. A group of scientists together with the project manager developed the original idea, which was refined and given shape as a script in dialogue form by a science writer from Public Affairs. The objective was to communicate scientific content in an entertaining manner with a simple storyline. In a second phase, the script was revised further by scientists for content. Clips from experiments and modeling simulations were requested from the Center's scientists to illustrate the scientific content. Video production and animation were done by the videographer and an animator in an iterative process that involve feedback from the Center team. The final cut was edited to meet the maximum length requirements set in the submission rules. The video was posted on Berkeley Lab's YouTube channel and was one of five winning entries in the Life at the Frontiers of Energy Research video contest. JF - American Geophysical Union Fall Meeting AU - Molins, S AU - Cappuccio, J A AU - Berry, I AU - Miller, J AU - Bourg, I C AU - Kelly, L M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PA33C EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - carbon sequestration KW - public awareness KW - video methods KW - injection KW - pollution KW - Alameda County California KW - education KW - research KW - reservoir rocks KW - carbon dioxide KW - California KW - Lawrence Livermore National Laboratory KW - geoscience KW - computer animation KW - greenhouse gases KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1668231159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=%22Carbon+in+Underland%22%3B+a+multidisciplinary+approach+to+producing+an+informative+animated+video+for+the+Center+for+Nanoscale+Control+of+Geological+CO+%28sub+2%29&rft.au=Molins%2C+S%3BCappuccio%2C+J+A%3BBerry%2C+I%3BMiller%2C+J%3BBourg%2C+I+C%3BKelly%2C+L+M%3BAnonymous&rft.aulast=Molins&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/PA/sessions/PA33C/abstracts/PA33C-07.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-02 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Alameda County California; California; carbon dioxide; carbon sequestration; computer animation; education; geoscience; greenhouse gases; injection; Lawrence Livermore National Laboratory; pollution; public awareness; research; reservoir rocks; United States; video methods ER - TY - JOUR T1 - Analytical solutions for pressure perturbation and fluid leakage through aquitards and wells in a multilayered system AN - 1668231084; 2015-030493 AB - Large-scale groundwater pumping or deep fluid injection in a multilayered system may generate pressure perturbation not only in the target formation(s), but also in over- and underlying units. Hydraulic communication in the vertical direction may occur via diffuse leakage through aquitards and/or via focused leakage through leaky wells. Existing analytical solutions for pressure perturbation and fluid flow in such systems consider either diffuse leakage or focused leakage, but never in combination with each other. This study presents generalized analytical solutions for pressure buildup and fluid leakage rates in a multilayered system consisting of any number of aquifers, alternating aquitards, injection wells, and leaky wells. The equations of horizontal groundwater flow in the aquifers are coupled by the equations of vertical flow in the aquitards and by the continuity equations in the leaky wells. The general solutions were obtained by applying the Laplace Transform method and eigenvalue analysis to the governing equations. Accuracy of the solutions was demonstrated by comparison with other analytical solutions as well as with detailed numerical predictions. Example applications to hypothetical CO2 injection scenarios (without consideration of two-phase flow) demonstrate that the new solutions are an efficient tool for analyzing pressure buildup in multilayered systems with leakage through multiple aquitards and multiple leaky wells. The solutions are particularly useful when a large number of calculations need to be performed, i.e., for uncertainty quantification, parameter estimation, or for the optimization of pressure management schemes. JF - American Geophysical Union Fall Meeting AU - Zhou, Q AU - Cihan, A AU - Birkholzer, J T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H33G EP - 1401 PB - American Geophysical Union, Washington, DC VL - 2011 KW - pressure KW - injection KW - fluid flow KW - mathematical models KW - enhanced recovery KW - aquitards KW - Laplace transformations KW - layered materials KW - ground water KW - models KW - multiple aquifers KW - leaky aquifers KW - hydraulic conductivity KW - water wells KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1668231084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Analytical+solutions+for+pressure+perturbation+and+fluid+leakage+through+aquitards+and+wells+in+a+multilayered+system&rft.au=Zhou%2C+Q%3BCihan%2C+A%3BBirkholzer%2C+J+T%3BAnonymous&rft.aulast=Zhou&rft.aufirst=Q&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H33G/abstracts/H33G-1401.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-04-02 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquitards; enhanced recovery; fluid flow; ground water; hydraulic conductivity; injection; Laplace transformations; layered materials; leaky aquifers; mathematical models; models; multiple aquifers; pressure; water wells ER - TY - JOUR T1 - Foam-based delivery of amendments to immobilize metals and radionuclides in deep vadose zone environments AN - 1664439160; 2015-024838 AB - Vadose zone environments can be sources and pathways for contaminant migration to groundwater aquifers, when very deep (> nearly equal 50 m) contaminants are difficult to remediate using conventional methods (e.g. excavation). This problem is particularly challenging in the arid western United States where the vadose zone may be > 100 m thick, extremely dry ( nearly equal 5 % water content), and in some cases, contaminated with a mixture of metals, radionuclides, and a variety of organic and inorganic co-contaminants. Chemical amendments have been developed for use in immobilizing contaminants in groundwater aquifers e.g., adding base to increase pH and sorb metals and radionuclides from acidic plumes or adding growth substrates to stimulate indigenous microbial activity and create reducing conditions that precipitate contaminants in poorly soluble mineral phases. However, delivering chemical amendments to dry vadose zone environments by injecting aqueous solutions may potentially mobilize contaminants by increasing the sediment's water content. Development of alternative methods for delivering chemical amendments to the deep vadose zone is a potentially useful approach for meeting remediation goals at some sites. We are exploring the use of foams, formed from liquid surfactants and air, as an agent to deliver chemical amendments to the deep vadose zone at the Hanford Site where the targeted contaminants include U, Tc, and nitrate. Injected foams can carry chemical amendments with limited amounts of water, reducing the potential for contaminant mobilization. We will present the results of numerical modeling, and pore- to intermediate scale laboratory experiments aimed at formulating foams to deliver polyphosphate to deep vadose zone sediments contaminated with uranium. When phosphate, delivered by injected foam, reacts with vadose zone pore water, poorly soluble, apatite-like phosphate minerals precipitate and sequester U(VI), limiting its downward migration to the underlying groundwater aquifer. JF - American Geophysical Union Fall Meeting AU - Istok, J D AU - Jansik, D P AU - Foote, M AU - Zhang, Z F AU - Wu, Y AU - Hubbard, S S AU - Mattigod, S AU - Zhong, L AU - Wellman, D M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H24A EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - contaminant plumes KW - unsaturated zone KW - aqueous solutions KW - remediation KW - ground water KW - mineral composition KW - nitrate ion KW - chemical composition KW - technetium KW - Washington KW - numerical models KW - injection KW - solutes KW - pollution KW - Hanford Site KW - porous materials KW - migration of elements KW - solubility KW - aquifers KW - metals KW - surfactants KW - uranium KW - actinides KW - pore water KW - foam KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664439160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Foam-based+delivery+of+amendments+to+immobilize+metals+and+radionuclides+in+deep+vadose+zone+environments&rft.au=Istok%2C+J+D%3BJansik%2C+D+P%3BFoote%2C+M%3BZhang%2C+Z+F%3BWu%2C+Y%3BHubbard%2C+S+S%3BMattigod%2C+S%3BZhong%2C+L%3BWellman%2C+D+M%3BAnonymous&rft.aulast=Istok&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H24A/abstracts/H24A-03.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; aqueous solutions; aquifers; chemical composition; contaminant plumes; foam; ground water; Hanford Site; injection; metals; migration of elements; mineral composition; nitrate ion; numerical models; pollution; pore water; porous materials; remediation; solubility; solutes; surfactants; technetium; United States; unsaturated zone; uranium; Washington ER - TY - JOUR T1 - Quantitative analysis of uranium accumulation on sediments during field-scale biostimulation under variable bicarbonate concentrations at the Rifle IFRC site AN - 1664439147; 2015-024840 AB - Bioremediation of uranium in subsurface environments is an approach that has been used at numerous field sites throughout the U.S in an attempt to lower dissolved U(VI) concentrations in groundwater. At the Rifle IFRC research site in Colorado, biostimulation of the native microbial population through acetate amendment for various periods of time has been tested in order to immobilize uranium through reduction U(VI) to U(IV). While this approach has successfully decreased U(VI) concentrations in the dissolved phase, often to levels below the EPA's maximum contaminant level of 0.13 mu M, little work has examined the solid-phase accumulation of U during field-scale biostimulation. The lack of information on solid-phase U accumulation is due in large part to the difficulty of obtaining comparable pre- and post-biostimulation field sediment samples. In addition, the relatively low (<10 ppm) U concentrations present in most sediments preclude the use of spectroscopic techniques such as XAS for examining solid-phase U speciation. However, a recently developed technique of performing column experiments in situ has allowed us to overcome both of these problems, obtaining sediment samples which were exposed to the same biogeochemical conditions as subsurface sediments during the course of biostimulation. During the 2010 Rifle IFRC field experiment (dubbed "Super 8"), a number of in situ columns were deployed in various wells representing regions of the aquifer affected by acetate amendment (ambient bicarbonate) and concomitant acetate and bicarbonate amendment (elevated bicarbonate). Elevated levels of bicarbonate have been shown to cause desorption of U(VI) from the solid phase at the Rifle site under non-stimulated conditions, resulting in higher dissolved U(VI) concentrations in the aquifer. The Super 8 field experiment was designed in part to test the effect of elevated bicarbonate concentrations on U sequestration during biostimulation. Results from this experiment provide a comparison of temporal aqueous and solid-phase U concentrations under ambient and elevated bicarbonate conditions during field-scale biostimulation. Additionally, a subset of in situ columns amended with 20 mu M U(VI) were analyzed by XANES in order to determine the relative importance of U(VI) and U(IV) in the solid phase. While the elevated bicarbonate concentrations did not impede reduction and sequestration of U, differences in the behavior of dissolved U(VI) after acetate amendment was stopped demonstrate the importance of U adsorption-desorption reactions in controlling dissolved U concentrations post-biostimulation. JF - American Geophysical Union Fall Meeting AU - Fox, P M AU - Davis, J A AU - Bargar, J R AU - Williams, K H AU - Singer, D M AU - Long, Philip E AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H24A EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - concentration KW - biodegradation KW - toxic materials KW - Garfield County Colorado KW - solutes KW - pollution KW - migration of elements KW - bioremediation KW - bicarbonate ion KW - remediation KW - ground water KW - aquifers KW - Rifle Colorado KW - Rifle Integrated Field Research Challenge Project KW - metals KW - sediments KW - uranium KW - Colorado KW - actinides KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664439147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Quantitative+analysis+of+uranium+accumulation+on+sediments+during+field-scale+biostimulation+under+variable+bicarbonate+concentrations+at+the+Rifle+IFRC+site&rft.au=Fox%2C+P+M%3BDavis%2C+J+A%3BBargar%2C+J+R%3BWilliams%2C+K+H%3BSinger%2C+D+M%3BLong%2C+Philip+E%3BAnonymous&rft.aulast=Fox&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H24A/abstracts/H24A-05.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; aquifers; bicarbonate ion; biodegradation; bioremediation; chemical fractionation; Colorado; concentration; Garfield County Colorado; ground water; metals; migration of elements; pollution; remediation; Rifle Colorado; Rifle Integrated Field Research Challenge Project; sediments; solutes; toxic materials; United States; uranium ER - TY - JOUR T1 - Structural incorporation of uranium into iron oxides; a competitive secondary sequestration pathway mediated by Fe(II) AN - 1664438921; 2015-024839 AB - Uranium retention and sequestration pathways determine the long-term fate of this important contaminant in soils and sediments. Direct, enzymatic U reduction and subsequent precipitation of UO (sub 2) is one potential sequestration pathway, but indirect U transformations can also occur as a result of reactions with microbially-generated Fe(II). Here we explored uranium retention mechanisms active during abiotic reduction of U(VI) by aqueous Fe(II), in the presence of ferrihydrite, in Ca and carbonate-bearing solutions. Ferrihydrite transformation and U reduction were studied in batch incubations containing Ca (0 and 4 mM), carbonate (3.8 mM), ferrihydrite ( nearly equal 180 mg/L), Fe(II) (0.3 mM), and a range of concentrations of uranyl (1 to 170 mu M). Uranium retention pathways were differentiated using extended x-ray absorption fine structure (EXAFS) spectroscopy and synchrotron X-ray powder diffraction. At U concentrations >50 mu M, U(VI) reduction to U(IV) and subsequent precipitation of UO (sub 2) was a dominant sequestration pathway. At lower U concentrations (1-10 mu M), UO (sub 2) precipitation was not observed and incorporation into goethite, the secondary transformation product of ferrihydrite, was dominant. For groundwaters having micromolar U(VI) concentrations, U incorporation into ferrihydrite transformation products via microbially-produced Fe(II) may be an important sequestration process. JF - American Geophysical Union Fall Meeting AU - Massey, M S AU - Lezama-Pacheco, J S AU - Nico, P S AU - Bargar, J R AU - Fendorf, S E AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H24A EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water quality KW - X-ray diffraction data KW - enzymes KW - iron KW - remediation KW - ground water KW - major elements KW - sediments KW - retention KW - oxides KW - trace elements KW - soils KW - concentration KW - pollution KW - bioremediation KW - powder method KW - ferrihydrite KW - geochemical cycle KW - ferrous iron KW - organic compounds KW - metals KW - uranium KW - transformations KW - proteins KW - actinides KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664438921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Structural+incorporation+of+uranium+into+iron+oxides%3B+a+competitive+secondary+sequestration+pathway+mediated+by+Fe%28II%29&rft.au=Massey%2C+M+S%3BLezama-Pacheco%2C+J+S%3BNico%2C+P+S%3BBargar%2C+J+R%3BFendorf%2C+S+E%3BAnonymous&rft.aulast=Massey&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H24A/abstracts/H24A-04.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; bioremediation; concentration; enzymes; ferrihydrite; ferrous iron; geochemical cycle; ground water; iron; major elements; metals; organic compounds; oxides; pollution; powder method; proteins; remediation; retention; sediments; soils; trace elements; transformations; uranium; water quality; X-ray diffraction data ER - TY - JOUR T1 - Observing the coupled behavior of geochemistry and flow path evolution during bioreduction using clinical nuclear imaging tomography AN - 1664438886; 2015-024842 AB - We present results from the first meso-scale column study of flow and bioreductive reactive transport in a porous media using Single-Photon Emission Computed Tomography (SPECT) to obtain time-resolved flow field structure. SPECT allows us to detect the 3D distribution of a radioactive tracer and how it evolves through time as flow proceeds through a packed sediment column. The column size for the experiment is 10 cm diameter by 30 cm length, and the approximate spatial resolution is 4.4 mm (86 mm (super 3) by volume). Our experiments involve a biologically mediated reduction reaction that partially immobilizes a conservative 99mTc-DTPA tracer. The procedure results in a 3D tomographic movie of the tracer distribution and concentration during the course of the flow-through experiment. The derived data represent an unprecedentedly detailed representation of reactive flow and transport that can be modeled to deconvolve the effects of permeability and reaction rate heterogeneity in controlling the transport of the tracer. The column was packed with sediment recovered from the Rifle IFRC site in western Colorado and all physical and chemical parameters were matched to field values. The artificial groundwater influent was supplemented with 10 mM acetate for 42 consecutive days, resulting in a characteristic trend of Fe reduction followed by SO (sub 4) reduction observed during uranium bioremediation at the Rifle field site. By day 42 SO (sub 4) concentration dropped across the column from an influent value of 8.8 mM to 4 mM at the effluent, while Ca concentrations dropped from 4.8 to 3.4 mM, suggesting substantial FeS and CaCO (sub 3) precipitation. Following day 42, acetate was removed from the influent solution and a rapid return to pre-acetate conditions was observed. During the course of the experiment 9 SPECT imaging studies were conducted for the through-flowing column using 99mTc-DTPA as a conservative tracer. Images were acquired on days -11, 3, 8, 15, 23, 30, 43, 77 and 91 relative to the start of acetate addition. For each imaging study, following a 30-minute bolus injection of 99mTc-DTPA, a series of 48 images representing a 3D distribution of radioactivity concentration was acquired over a period of 24 hours. Preliminary analysis of the SPECT datasets indicates changes in flow field structure were captured through the series of imaging studies. Using iTOUGH2, first and second moments of the imaged plume are fit as a function of time to obtain permeability values for use in a CrunchFlow reactive transport model. Utilizing the newly established 99mTc-DTPA conservative tracer to track the evolution of physical structure associated with bioreduction and implementing this data into a biogeochemical transport model is anticipated to yield new insight into the coupling between biogenic contaminant remediation and flow-field evolution. JF - American Geophysical Union Fall Meeting AU - Druhan, J L AU - Vandehey, N T AU - Buchko, R AU - O'Neil, J P AU - Moses, W W AU - Finsterle, S AU - Steefel, C AU - Nico, P S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H24A EP - 07 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - tomography KW - concentration KW - imagery KW - experimental studies KW - monitoring KW - Garfield County Colorado KW - radioactivity KW - pollutants KW - pollution KW - porous materials KW - preferential flow KW - bioremediation KW - remediation KW - models KW - Rifle Colorado KW - Rifle IFRC Site KW - transport KW - tracers KW - sediments KW - reactive transport KW - Colorado KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664438886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Observing+the+coupled+behavior+of+geochemistry+and+flow+path+evolution+during+bioreduction+using+clinical+nuclear+imaging+tomography&rft.au=Druhan%2C+J+L%3BVandehey%2C+N+T%3BBuchko%2C+R%3BO%27Neil%2C+J+P%3BMoses%2C+W+W%3BFinsterle%2C+S%3BSteefel%2C+C%3BNico%2C+P+S%3BAnonymous&rft.aulast=Druhan&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H24A/abstracts/H24A-07.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - bioremediation; Colorado; concentration; experimental studies; Garfield County Colorado; imagery; models; monitoring; pollutants; pollution; porous materials; preferential flow; radioactivity; reactive transport; remediation; Rifle Colorado; Rifle IFRC Site; sediments; tomography; tracers; transport; United States ER - TY - JOUR T1 - Assessing uncertainty in subsurface transport predictions using the ASCEM toolset AN - 1664436673; 2015-024836 AB - Transport simulation of nonreactive solutes can be used to identify potential pathways of contaminants in the vadose zone and the effectiveness of site remediation technologies. At the BC Cribs site at Hanford in southeastern Washington State, innovative remedial technologies are being explored to address recalcitrant contamination in the deep ( nearly equal 100 m) vadose zone. To identify the effectiveness of the technologies, the impacts of a "no-action" alternative must also be explored. Because only sparse information is available for the geologic conceptual model and the physical and chemical properties of the sediments, there is considerable uncertainty in subsurface transport predictions. In this contribution, the uncertainty of the technetium-99 mass flux to the water table due to parameter uncertainty and variations in the conceptual model are investigated using a newly developed toolset for performing an uncertainty quantification (UQ) analysis. This toolset is part of ASCEM (Advanced Simulation Capability for Environmental Management), a state-of-the-art scientific tool and approach for understanding and predicting contaminant fate and transport in natural and engineered systems. Using the Akuna user environment currently under development, the uncertainty in technetium-99 transport through a two-dimensional, heterogeneous vadose-zone system is quantified with Monte Carlo simulation. Results show that uncertainty in simulated mass fluxes in hydraulic properties can be significant within a single conceptual model, and that significant additional uncertainty can be introduced by conceptual model variation. JF - American Geophysical Union Fall Meeting AU - Freedman, V AU - Chen, X AU - Keating, E H AU - Higdon, D M AU - Rockhold, M L AU - Schuchardt, K L AU - Finsterle, S AU - Gorton, I AU - Freshley, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H24A EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - solute transport KW - advanced simulation capability for Environmental Management KW - isotopes KW - data processing KW - unsaturated zone KW - ASCEM program KW - simulation KW - remediation KW - ground water KW - radioactive isotopes KW - transport KW - technetium KW - Washington KW - Monte Carlo analysis KW - statistical analysis KW - prediction KW - pollution KW - optimization KW - Hanford Site KW - Tc-99 KW - two-dimensional models KW - aquifers KW - computer programs KW - water table KW - metals KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664436673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Assessing+uncertainty+in+subsurface+transport+predictions+using+the+ASCEM+toolset&rft.au=Freedman%2C+V%3BChen%2C+X%3BKeating%2C+E+H%3BHigdon%2C+D+M%3BRockhold%2C+M+L%3BSchuchardt%2C+K+L%3BFinsterle%2C+S%3BGorton%2C+I%3BFreshley%2C+M%3BAnonymous&rft.aulast=Freedman&rft.aufirst=V&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H24A/abstracts/H24A-01.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - advanced simulation capability for Environmental Management; aquifers; ASCEM program; computer programs; data processing; ground water; Hanford Site; isotopes; metals; Monte Carlo analysis; optimization; pollution; prediction; radioactive isotopes; remediation; simulation; solute transport; statistical analysis; Tc-99; technetium; transport; two-dimensional models; United States; unsaturated zone; Washington; water table ER - TY - JOUR T1 - Probing microbial activity in a perched water body located in a deep vadose zone AN - 1664436421; 2015-024841 AB - Waste releases to the vadose zone are a legacy of past activities at a number of Department of Energy (DOE) facilities. At the Idaho National Laboratory (INL), (super 90) Sr has been detected in perched water bodies underlying the Idaho Nuclear Technology and Engineering Center (INTEC) facility. Microbially induced calcite precipitation (MICP) using urea-hydrolyzing microbes is one proposed approach for immobilization of (super 90) Sr in the subsurface. The sequestration mechanism is co-precipitation in calcite, promoted by the production of carbonate alkalinity from ureolysis. In order to assess the potential efficacy of MICP at INTEC a field study was conducted at the INL Vadose Zone Research Park (VZRP). The VZRP is located approximately 3 km from INTEC and shares many of the same hydrologic and lithologic features but in a non-contaminated setting. We conducted experiments over two field seasons in a perched water body located approximately 15 meters below land surface, using a 5-spot wellfield design. During the first season amendments (molasses and urea) were injected into the central well and water was extracted from two wells on either side, located along a diagonal. Water samples were characterized for microbial abundance, ureolytic activity and ureC gene numbers, along with solution composition. Before, during and after the injections cross-borehole geophysical imaging was performed, using various combinations of the available wells. During the second field season in situ static experiments were conducted to specifically characterize attached and unattached microbial communities, using surrogate substrates colonized during a 12 week incubation. Based on the field data a first order in situ urea hydrolysis rate constant of 0.034 d (super -1) was estimated. This was more than an order of magnitude higher than rate constants estimated above-ground using water samples, suggesting that attached microorganisms were responsible for >90% of the observed urea hydrolysis activity. The geophysical monitoring data indicated that both radar and electrical resistivity techniques were able to sense the spatiotemporal distributions of the amendments. In the static incubation studies, the activity of the attached community was >1000x higher than the unattached community. Phospholipid biomass estimates for the attached community using two different matrices were 1,000x and 10,000x higher than for the unattached. Community structure changes were seen over time and between wells. Streamtube ensemble-based modelling was applied to simulate the combined well-to-well transport and reaction system processes, with several simplifying assumptions including an immobile biomass phase. The transport model was calibrated by fitting the traveltime distribution function to bromide tracer data, and provided a useful framework for simulation of the reactive transport as indicated by the arrival of urea at the withdrawal well. JF - American Geophysical Union Fall Meeting AU - Fujita, Y AU - Taylor, J L AU - Henriksen, J R AU - Delwiche, M AU - Gebrehiwet, T AU - Hubbard, S S AU - Spycher, N AU - Weathers, T S AU - Ginn, T R AU - Pfiffner, S M AU - Smith, R W AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H24A EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - Sr-90 KW - isotopes KW - halogens KW - unsaturated zone KW - hydrolysis KW - bromide ion KW - suspended materials KW - simulation KW - remediation KW - Idaho National Laboratory KW - radioactive isotopes KW - perched aquifers KW - transport KW - tracers KW - Idaho KW - alkaline earth metals KW - toxic materials KW - pollution KW - migration of elements KW - bromine KW - bioremediation KW - calcite KW - aquifers KW - models KW - precipitation KW - metals KW - traveltime KW - carbonates KW - strontium KW - microorganisms KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664436421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Probing+microbial+activity+in+a+perched+water+body+located+in+a+deep+vadose+zone&rft.au=Fujita%2C+Y%3BTaylor%2C+J+L%3BHenriksen%2C+J+R%3BDelwiche%2C+M%3BGebrehiwet%2C+T%3BHubbard%2C+S+S%3BSpycher%2C+N%3BWeathers%2C+T+S%3BGinn%2C+T+R%3BPfiffner%2C+S+M%3BSmith%2C+R+W%3BAnonymous&rft.aulast=Fujita&rft.aufirst=Y&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H24A/abstracts/H24A-06.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aquifers; bioremediation; bromide ion; bromine; calcite; carbonates; halogens; hydrolysis; Idaho; Idaho National Laboratory; isotopes; metals; microorganisms; migration of elements; models; perched aquifers; pollution; precipitation; radioactive isotopes; remediation; simulation; Sr-90; strontium; suspended materials; toxic materials; tracers; transport; traveltime; United States; unsaturated zone ER - TY - JOUR T1 - Progress in understanding uranium(IV) speciation and dynamics in biologically reduced sediments; research at molecular to centimeter scales by the SLAC SFA program AN - 1664436391; 2015-024818 AB - The chemical and physical forms of U(IV) in reduced sediments, as well as the biogeochemical processes by which they form and transform, profoundly influence the stability of reduced U(IV) species and the behavior of uranium in biostimulated aquifers. Obtaining such information in field sediments is important because biogeochemical field conditions and their time dependence are difficult to replicate in the laboratory. The majority of contaminated aquifers in which bioremediation is of potential interest, including the Old Rifle, CO IFRC site, exhibit relatively low uranium sediment concentrations, i.e., < 10 ppm, presenting a formidable challenge to the use of spectroscopy and microscopy techniques that typically require 10-fold or higher uranium loadings. We have developed an in-situ column technique to study U(IV) species and evolving microbial communities in the Old Rifle aquifer and to correlate them with changes in trace and major ion groundwater composition during biostimulation treatments. Sediments were examined using x-ray and electron microscopy, x-ray absorption spectroscopy (XAS), and chemical extractions. XAS analysis showed that U(IV) occurred predominantly or exclusively as monomeric U(IV) complexes coordinated to oxo (or similar N/C) neighbors, and is associated with biomass or Fe sulfides. Even in the latter case, U(IV) was not coordinated directly to S neighbors. Sediment-hosted monomeric U(IV) complexes were found to partially transform into uraninite in the aquifer over a subsequent 12 month period. This work establishes the importance of monomeric U(IV) complexes in subsurface sediments at the Old Rifle site and provides a conceptual framework in which previously observed U(IV) reduction products can be related. These experiments also establish that U(IV) species are dynamic in aquifers and can undergo non-oxidative transformation reactions. These new results have important implications for uranium reactive transport models, long-term assessment of remediation technologies, and understanding natural uranium reduction in aquifers. JF - American Geophysical Union Fall Meeting AU - Bargar, J R AU - Williams, K H AU - Campbell, K M AU - Stubbs, J E AU - Suvorova, Elena AU - Lezama-Pacheco, J S AU - Alessi, Daniel AU - Stylo, Malgorzata AU - Handley, Kim M AU - Bernier-Latmani, Rizlan AU - Cerrato, J AU - Davis, J A AU - Fox, P M AU - Giammar, D AU - Long, Philip E AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H23I EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - water quality KW - in situ KW - bioremediation KW - Old Rifle Aquifer KW - remediation KW - ground water KW - aquifers KW - metals KW - water treatment KW - sediments KW - uranium KW - Colorado KW - actinides KW - microorganisms KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664436391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Progress+in+understanding+uranium%28IV%29+speciation+and+dynamics+in+biologically+reduced+sediments%3B+research+at+molecular+to+centimeter+scales+by+the+SLAC+SFA+program&rft.au=Bargar%2C+J+R%3BWilliams%2C+K+H%3BCampbell%2C+K+M%3BStubbs%2C+J+E%3BSuvorova%2C+Elena%3BLezama-Pacheco%2C+J+S%3BAlessi%2C+Daniel%3BStylo%2C+Malgorzata%3BHandley%2C+Kim+M%3BBernier-Latmani%2C+Rizlan%3BCerrato%2C+J%3BDavis%2C+J+A%3BFox%2C+P+M%3BGiammar%2C+D%3BLong%2C+Philip+E%3BAnonymous&rft.aulast=Bargar&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H23I/abstracts/H23I-02.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - actinides; aquifers; bioremediation; Colorado; ground water; in situ; metals; microorganisms; Old Rifle Aquifer; remediation; sediments; United States; uranium; water quality; water treatment ER - TY - JOUR T1 - Pore scale modeling of mixing-induced carbonate precipitation AN - 1664436344; 2015-024857 AB - Mixing of groundwaters of differing chemical composition can lead to precipitation of minerals, potentially modifying the transport and chemical properties of the subsurface materials. Carbonate minerals are particularly common secondary phases that form as a result of mixing, although in many instances their formation is also affected by a suite of complex dissolution and precipitation reactions that change the pH and alkalinity of groundwater. In the case of mixing, several distinct regimes are recognized, depending on the supersaturation generated by the mixing process. In the case where high degrees of supersaturation with respect to carbonate occur as a result of mixing (e.g., log Q/Keq > 1.5, where Q is the ion activity product and Keq is the equilibrium constant), homogeneous nucleation can generate reactive surface area for continued carbonate growth. In this case, no interaction between the mixing fluid and immobile solid phases is needed. In contrast, where supersaturation is more limited (log Q/Keq = 0.5 to 1.5), precipitation generally takes place via heterogeneous nucleation, in which case a templated mineral surface (normally carbonate) is required. Heterogeneous nucleation of carbonates is typically second order with respect to the supersaturation. At lower degrees of supersaturation (log Q/Keq < 0.5), precipitation takes place via crystal growth on discrete surface features of the carbonate mineral (e.g., via spiral growth) surface and shows a first order or quasi-first order dependence on supersaturation. Thus, the supersaturation induced by mixing largely controls the order of the reaction and the extent of interaction with pre-existing mineral surfaces in the subsurface. These in turn impact how the physical and chemical properties of the medium are modified by carbonate precipitation. We are investigating these carbonate precipitation regimes using pore scale reactive transport modeling based on Direct Numerical Simulation methods. Our computational approach relies on a new simulator based on operator splitting that combines a calculation of Navier-Stokes flow within discrete grain packs with the geochemical simulator CrunchFlow. Navier-Stokes flow and solute transport are handled by the Chombo software package, which implements Adaptive Mesh Refinement and embedded boundary methods for high resolution simulations. The pore scale computational results are validated by comparison with a variety of experimental studies in which carbonate precipitation results from mixing. JF - American Geophysical Union Fall Meeting AU - Steefel, C AU - Molins, S AU - Shen, C AU - Trebotich, D AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H24F EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water quality KW - data processing KW - suspended materials KW - porous materials KW - simulation KW - ground water KW - computer programs KW - CrunchFlow KW - supersaturation KW - mineral composition KW - nucleation KW - transport KW - saturation KW - precipitation KW - chemical properties KW - alkalinity KW - chemical composition KW - carbonates KW - 21:Hydrogeology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1664436344?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Pore+scale+modeling+of+mixing-induced+carbonate+precipitation&rft.au=Steefel%2C+C%3BMolins%2C+S%3BShen%2C+C%3BTrebotich%2C+D%3BAnonymous&rft.aulast=Steefel&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H24F/abstracts/H24F-01.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkalinity; carbonates; chemical composition; chemical properties; computer programs; CrunchFlow; data processing; ground water; mineral composition; nucleation; porous materials; precipitation; saturation; simulation; supersaturation; suspended materials; transport; water quality ER - TY - JOUR T1 - Optimality and unsaturated flow AN - 1660633805; 2015-017902 AB - Optimality principles have been used for investigating physical processes in different areas. This work attempts to apply an optimal principle (that water flow resistance is minimized for the entire flow domain) to steady-state unsaturated flow processes. Based on the calculus of variations, we show that under optimal conditions, hydraulic conductivity for steady state, gravity-dominated unsaturated flow is proportional to a power function of the magnitude of water flux. This relationship is consistent with an intuitive expectation that for an optimal water flow system, locations where relatively large water fluxes occur should correspond to relatively small resistance (or large conductance). Consistence of this theoretical result with observed fingering-flow behavior in unsaturated soils and an existing model is also demonstrated. JF - American Geophysical Union Fall Meeting AU - Liu, H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H53A EP - 1383 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - steady-state processes KW - unsaturated zone KW - theoretical models KW - optimization KW - hydrodynamics KW - porous materials KW - preferential flow KW - fluid dynamics KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660633805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Optimality+and+unsaturated+flow&rft.au=Liu%2C+H%3BAnonymous&rft.aulast=Liu&rft.aufirst=H&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H53A/abstracts/H53A-1383 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - fluid dynamics; hydrodynamics; hydrology; optimization; porous materials; preferential flow; steady-state processes; theoretical models; unsaturated zone ER - TY - JOUR T1 - Time-resolved study of early-stage formation of iron oxyhydroxide nanoparticles in simulated acid mine drainage (AMD) solutions AN - 1660633718; 2015-017939 AB - Early stage development of ferric iron oxyhydroxide (FeOOH) nanoparticles from bicarbonate-neutralized Fe (sub 2) (SO (sub 4) ) (sub 3) solutions was investigated using time-resolved UV-Vis spectroscopy and quick extended X-ray absorption fine structure (Q-EXAFS) spectroscopy. Two neutralization ratio ( h =[HCO (sub 3) (super -) ]/[Fe (super 3+) ]) of 1 and 2 were used. The neutralized systems changed visually from transparent solutions after the base addition to blurry and then opaque suspensions at extended reaction time. For the h=1 solution, its absorbance measured at 600 nm (due to scattering because of no absorption bands at this wavelength) increased quickly within initial 10 min, slightly between 10 - 26 min, and explosively afterwards. These three stages have been previously ascribed to hydrolysis and initial condensation, condensation, and aggregation processes, respectively. For the h=2 solution, only the two later evolution stages were recorded. UV-Vis spectra of the h=1 solution show that three absorption bands, likely resulting from Fe (super 3+) -sulfate species, gradually disappeared with the increase of reaction time and were not visible at about 10 min. Meanwhile, an electron pair transition (EPT) band centered at 485 nm emerged and gradually grew in its amplitude, indicating particles of a FeOOH phase being formed. For h=2, the three bands were not observed, but the EPT band at 485 nm was pronounced in the first collected spectrum and also grew with time, indicating that FeOOH particles were already formed from the very beginning. In addition, in both of the h=1 and 2 solutions the bands around 370 - 400 nm shifted to higher wavelength, suggesting that FeOOH particle size increased with time. Time-resolved Q-EXAFS spectra were collected every 2 s and were averaged over 15 consecutive scans, resulting in a time resolution of 30 s. For the h=1 solution, the EXAFS radial structural functions (RSF) initially had no or very weak peaks at positions corresponding to edge- and corner-sharing Fe shells. After 10 min of reaction time, the two Fe shells became obvious. This corroborates with the UV-Vis analysis that Fe-sulfate clusters were present at the beginning and FeOOH particles emerged later. For the h=2 solution, RSF shows high amplitudes of the two Fe shells in the first EXAFS spectrum. The amplitudes significantly grew with time, consistent with increasing Fe coordination numbers obtained by EXAFS shell-by-shell fitting. The EXAFS fitting also shows that the second Fe-Fe distance decreased from 3.41 to 3.36 Aa with time while the first Fe-Fe distance was almost constant at 3.03 Aa. X-ray diffraction identified the final precipitates as schwertmannite, a FeOOH phase containing structural sulfate. JF - American Geophysical Union Fall Meeting AU - Zhu, M AU - Legg, B AU - Zhang, H AU - Waychunas, G A AU - Banfield, J F AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H53B EP - 1424 PB - American Geophysical Union, Washington, DC VL - 2011 KW - ultraviolet spectroscopy KW - biodegradation KW - neutralization KW - acid mine drainage KW - sulfates KW - oxyhydroxides KW - pollution KW - hydrolysis KW - suspended materials KW - bioavailability KW - bicarbonate ion KW - iron KW - hydroxides KW - ferric iron KW - schwertmannite KW - precipitation KW - metals KW - EXAFS data KW - oxides KW - spectroscopy KW - nanoparticles KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660633718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Time-resolved+study+of+early-stage+formation+of+iron+oxyhydroxide+nanoparticles+in+simulated+acid+mine+drainage+%28AMD%29+solutions&rft.au=Zhu%2C+M%3BLegg%2C+B%3BZhang%2C+H%3BWaychunas%2C+G+A%3BBanfield%2C+J+F%3BAnonymous&rft.aulast=Zhu&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H53B/abstracts/H53B-1424.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - acid mine drainage; bicarbonate ion; bioavailability; biodegradation; chemical fractionation; EXAFS data; ferric iron; hydrolysis; hydroxides; iron; metals; nanoparticles; neutralization; oxides; oxyhydroxides; pollution; precipitation; schwertmannite; spectroscopy; sulfates; suspended materials; ultraviolet spectroscopy ER - TY - JOUR T1 - The acquisition and integrated inversion of a continuous active source seismic monitoring dataset; application to shallow hydrofracture evolution AN - 1660633405; 2015-017879 AB - Fast subsurface processes, which occur on the scale of seconds to minutes, present a challenging target for geophysical monitoring approaches. The initiation, propagation, and consolidation of a hydraulic fracture is one example of a process occurring on these time-scales for which a satisfactory spatio-temporal imaging approach has been difficult to develop in a field setting. Active-source seismic monitoring has the potential to dynamically characterize fracture propagation rates, spatial extent and potentially the transport properties of the newly established feature. However, even well designed timelapse seismic surveys have limited temporal resolution due to the intrinsic time required to acquire a survey. We have recently developed a technique which circumvents this limitation by using fixed semi-permanent arrays of seismic sources and receivers to allow complete active source surveys to be acquired in a matter of minutes indepedendent of human intervention; this approach, referred to as multi-level continuous active source seismic monitoring (ML-CASSM), can provide precise quantification of traveltime and attenuation changes as well as fast temporal sampling. However, the datasets generated by this acquisition approach are voluminous, consisting of 10s to 1000s of timelapse "epochs" which span the targeted event and present unique problems in the pre-processing, inversion, and integration stages if a consistent spatio-temporal model is the desired result. We present results detailing our extended analysis of the first deployment of ML-CASSM with a dense source/receiver geometries. Our system is capable of autonomously acquiring full tomographic datasets (10 sources, 72 receivers) in 3 minutes without human intervention, thus allowing active source seismic imaging of processes with short durations. The dataset in question targets the emplacement of a single hydraulic fracture for the purpose of enhanced bioremediation of DNAPL contamination. We apply a novel inversion process to the dataset which uses a temporal regularization scheme to jointly invert 30 temporal epochs spanning the course of fracture initiation, propagation, and consolidation. The fracture, visible seismically as a localized zone of decreased P-wave velocity and increased P-wave attenuation, was effectively tracked using this approach. Joint inversion or "temporal fusion" of the large sequence of datasets improved the quality of the spatio-temporal model of the evolving fracture. The depth and position of the fracture as observed by ML-CASSM was confirmed by subsequent confirmation drilling and core acquisition. JF - American Geophysical Union Fall Meeting AU - Ajo Franklin, J B AU - Daley, T M AU - Butler-Veytia, B AU - Peterson, J E AU - Gasperikova, E AU - Wu, Y AU - Kelly, B AU - Hubbard, S S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H52C EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - tomography KW - hydrology KW - hydraulic fracturing KW - P-waves KW - body waves KW - monitoring KW - geophysical methods KW - elastic waves KW - downhole methods KW - cores KW - seismic methods KW - fractures KW - attenuation KW - propagation KW - seismic waves KW - drilling KW - water resources KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660633405?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+acquisition+and+integrated+inversion+of+a+continuous+active+source+seismic+monitoring+dataset%3B+application+to+shallow+hydrofracture+evolution&rft.au=Ajo+Franklin%2C+J+B%3BDaley%2C+T+M%3BButler-Veytia%2C+B%3BPeterson%2C+J+E%3BGasperikova%2C+E%3BWu%2C+Y%3BKelly%2C+B%3BHubbard%2C+S+S%3BAnonymous&rft.aulast=Ajo+Franklin&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H52C/abstracts/H52C-03 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - attenuation; body waves; cores; downhole methods; drilling; elastic waves; fractures; geophysical methods; hydraulic fracturing; hydrology; monitoring; P-waves; propagation; seismic methods; seismic waves; tomography; water resources ER - TY - JOUR T1 - Multiscale hydrogeophysical data assimilation for plume-scale subsurface characterization AN - 1660633402; 2015-017882 AB - Predictions of subsurface contaminant plume evolution and natural attenuation capacity often fail due to the difficulty to tractably characterize heterogeneity of flow-and-transport properties at the plume-relevant scales. This study presents a stochastic-estimation framework for assimilating multiscale datasets and characterizing a plume-scale subsurface domain. We utilize the concept of reactive facies, which is based on the hypothesis that we can identify packages of sediments that have distinct distributions of properties influencing reactive transport, such as effective surface area, mineralogy and permeability. Because geophysical attributes are often sensitive to some of those properties, this concept allows us to take advantage of both geophysical and lithological datasets, to characterize the spatial distribution of reactive transport parameters. Previous research has illustrated that crosshole geophysical methods can be used to identify and spatially distribute reactive facies at the local scale. To map the spatial distribution of reactive facies at the plume-scale, we must (1) honor the large-scale trend without smoothing out the detail structure of facies, and (2) assimilate multi-source, multiscale datasets in a consistent manner, including wellbore data and crosshole and surface geophysical data. To tackle these challenges, we have developed a hierarchical Bayesian framework, which consists of three statistical sub-models: a data model, a process model, and a prior model. The data model - developed according to the stochastic feature of measurement errors - provides the linkage between the multiple geophysical datasets and the spatially distributed geophysical attributes through linear/nonlinear forward models. The process model describes the spatial distribution of reactive facies and geophysical attributes as spatial random processes controlled by geostatistical and petrophysical parameters. We use an indicator random field with a trend function for facies and Gaussian fields for geophysical attributes within each facies. The prior model is constructed for the controlling parameters based on the information from geologically similar sites. Using the Markov-chain Monte-Carlo sampling method, we obtain the marginal posterior distribution of parameters and reactive facies fields that can be used as an input to reactive transport simulations. We apply our framework to the datasets from the uranium-contaminated Savannah River Site F-Area. They include wellbore lithology data, cone penetration test data, crosshole ground-penetrating radar and seismic data, and surface seismic data. A synthetic study with the same data acquisition setup shows that the point-scale and crosshole data provide the detailed structure of reactive facies, and reduce uncertainty significantly in their vicinity, while surface seismic data can identify the large-scale trend and map facies with increased uncertainty over a large domain. We find that our methodology effectively integrates different types of data, providing an approach for distributing critical information about properties that control flow and transport (typically obtained at the core/well scale) to the scales needed for simulating plume migration and remediation. JF - American Geophysical Union Fall Meeting AU - Wainwright, H M AU - Sassen, D S AU - Chen, J AU - Hubbard, S S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H52C EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - scale factor KW - penetration tests KW - contaminant plumes KW - Bayesian analysis KW - cone penetration tests KW - statistical analysis KW - data processing KW - characterization KW - pollution KW - hydrogeology KW - migration of elements KW - preferential flow KW - fluid dynamics KW - remediation KW - ground water KW - transport KW - stochastic processes KW - natural attenuation KW - data bases KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660633402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Multiscale+hydrogeophysical+data+assimilation+for+plume-scale+subsurface+characterization&rft.au=Wainwright%2C+H+M%3BSassen%2C+D+S%3BChen%2C+J%3BHubbard%2C+S+S%3BAnonymous&rft.aulast=Wainwright&rft.aufirst=H&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H52C/abstracts/H52C-06 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-03-05 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Bayesian analysis; characterization; cone penetration tests; contaminant plumes; data bases; data processing; fluid dynamics; ground water; hydrogeology; migration of elements; natural attenuation; penetration tests; permeability; pollution; preferential flow; remediation; scale factor; statistical analysis; stochastic processes; transport ER - TY - JOUR T1 - HydroImage; a new software for hydrogeophysical and biogeophysical data integration AN - 1656037966; 2015-013994 AB - Hydrogeophysical and biogeophysical data integration have recently emerged as cost-effective and rapid techniques for improving subsurface characterization and monitoring. In a Bayesian framework for integration, borehole based data provide prior distribution and geophysical information serve as data to update the prior through likelihood functions obtained from petrophysical models between borehole and cross-well data. We present the application of a Windows-based software called HydroImage that uses this Bayesian framework for data integration and visualization. HydroImage can be used for geostatistical estimation, geophysical tomographic inversion, petrophysical model development, and Bayesian integration. We demonstrate HydroImage using three different field datasets to estimate different subsurface states or parameters. The first example combines wellbore flowmeter test data and crosshole seismic and ground penetrating radar (GPR) data to estimate hydraulic conductivity at the DOE Bacterial Transport Site in Oyster, Virginia. The second example focuses on using time-lapse radar data to estimate moisture content dynamics associated with a desiccation test performed to remediate the deep vadose zone in Hanford, Washington. The third example demonstrates the use of spectral induced polarization data to estimate the spatial and temporal distribution of geochemical parameters that are indicative of the redox state of a contaminated aquifer. JF - American Geophysical Union Fall Meeting AU - Suribhatla, R M AU - Mok, C M AU - Kaback, D AU - Chen, J AU - Hubbard, S S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H43D EP - 1249 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - tomography KW - imagery KW - spatial data KW - Bayesian analysis KW - moisture KW - ground-penetrating radar KW - data processing KW - characterization KW - ground water KW - visualization KW - transport KW - HydroImage KW - water pollution KW - flowmeters KW - dynamic properties KW - hydrology KW - Washington KW - crosshole methods KW - statistical analysis KW - geophysical methods KW - radar methods KW - pollution KW - Hanford Site KW - aquifers KW - computer programs KW - boreholes KW - data integration KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1656037966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=HydroImage%3B+a+new+software+for+hydrogeophysical+and+biogeophysical+data+integration&rft.au=Suribhatla%2C+R+M%3BMok%2C+C+M%3BKaback%2C+D%3BChen%2C+J%3BHubbard%2C+S+S%3BAnonymous&rft.aulast=Suribhatla&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H43D/abstracts/H43D-1249.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-02-19 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; Bayesian analysis; boreholes; characterization; computer programs; crosshole methods; data integration; data processing; dynamic properties; flowmeters; geophysical methods; ground water; ground-penetrating radar; Hanford Site; HydroImage; hydrology; imagery; moisture; pollution; radar methods; spatial data; statistical analysis; tomography; transport; United States; visualization; Washington; water pollution ER - TY - JOUR T1 - Upscaling carbonate precipitation associated with CO2 sequestration from pore to continuuum scale AN - 1645575792; 2015-005265 AB - Subsurface sequestration of CO2 in carbonate minerals is possible if an adequate supply of cations and alkalinity for supersaturation. Supersaturation may occur as a result of dissolution of primary minerals (e.g., silicates), or as a result of mixing of groundwaters with differing chemical compositions. Precipitation can affect the rate of carbonate mineral sequestration by modifying permeability and/or reactive surface area (both primary and secondary). Thus, the process is of interest in GeoEnergy systems even where the primary objective is not to sequester carbon in mineral form. Here we present an integrated approach that combines experimental reactive flow columns in which supersaturated, carbonate-rich solutions are injected into calcite packs. Bulk rates of precipitation based on the change in chemistry over the length of the column are compared with spatially resolved determinations of carbonate precipitation using X-ray synchrotron imaging at the micron scale. These data are supplemented by well-stirred reactor experiments to evaluate the rate of precipitation in the absence of transport or "porous medium" effects. Results indicate good agreement between rates determined with fluid chemistry and with microtomography. Using the rates of precipitation determined in the well-stirred flowthrough reactors, it is possible to match the spatially-resolved microtomographic and aqueous data with a continuum model if the generation of new reactive surface area is accounted for. The experimentally-determined value of 0.90 m2/g for the specific surface area of the neoformed calcite results in reasonable agreement with the continuum model. JF - American Geophysical Union Fall Meeting AU - Steefel, C AU - Yang, L AU - Noiriel, Catherine N AU - Ajo-Franklin, Jonathan B AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H53L EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - tomography KW - carbon sequestration KW - fluid flow KW - suspended materials KW - porous materials KW - aqueous solutions KW - ground water KW - carbon dioxide KW - calcite KW - aquifers KW - models KW - reactivity KW - saturation KW - precipitation KW - alkalinity KW - chemical composition KW - carbonates KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645575792?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Upscaling+carbonate+precipitation+associated+with+CO2+sequestration+from+pore+to+continuuum+scale&rft.au=Steefel%2C+C%3BYang%2C+L%3BNoiriel%2C+Catherine+N%3BAjo-Franklin%2C+Jonathan+B%3BAnonymous&rft.aulast=Steefel&rft.aufirst=C&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H53L/abstracts/H53L-03.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-15 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alkalinity; aqueous solutions; aquifers; calcite; carbon dioxide; carbon sequestration; carbonates; chemical composition; fluid flow; ground water; models; porous materials; precipitation; reactivity; saturation; suspended materials; tomography ER - TY - JOUR T1 - Geomechanical modeling and monitoring of fault responses and the potential for earthquakes during underground CO2 injection AN - 1645575594; 2015-005270 AB - The importance of geomechanical processes and modeling associated with large-scale CO2 injection operations can hardly be overemphasized. In particular, recent concerns about the potential for injection-induced fault reactivation and earthquakes are key technical issues that need to be addressed. Under these circumstances, coupled fluid flow and geomechanical modeling is an important tool in site specific risk analysis and for designing injection operations in terms of sustainable injection rates. It appears that future commercial scale CO2 storage operations may cause considerable pore pressure perturbation over distances of tens of km. In this context, recent model simulations of injection-induced fault reactivation and potential earthquake magnitudes will be presented. These model simulations show what it takes to create a magnitude 3 or 4 earthquake that would not result in any significant surface damage, but would certainly raise concerns in the local community and could also affect the containment of the stored CO2. Observations from ongoing CO2 storage projects will also be discussed, in particular the In Salah project, with regard to injection induced fault responses and seismicity. JF - American Geophysical Union Fall Meeting AU - Rutqvist, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H53M EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - monitoring KW - injection KW - mechanical properties KW - simulation KW - carbon dioxide KW - models KW - Salah Project KW - mitigation KW - seismicity KW - seismic risk KW - risk assessment KW - reservoir properties KW - greenhouse gases KW - underground disposal KW - faults KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645575594?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Geomechanical+modeling+and+monitoring+of+fault+responses+and+the+potential+for+earthquakes+during+underground+CO2+injection&rft.au=Rutqvist%2C+J%3BAnonymous&rft.aulast=Rutqvist&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H53M/abstracts/H53M-01.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-15 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; faults; greenhouse gases; hydrology; injection; mechanical properties; mitigation; models; monitoring; reservoir properties; risk assessment; Salah Project; seismic risk; seismicity; simulation; underground disposal ER - TY - JOUR T1 - Amanzi and Akuna; two new community codes for subsurface contaminant flow and transport AN - 1645575589; 2015-005267 AB - The Advanced Simulation Capability for Environmental Management (ASCEM) program is developing a modular and extensible open-source set of tools for understanding the fate and transport of contaminants in natural and engineered systems. These tools not only support a fundamental shift toward standardized assessments of performance and risk for the Department of Energy Office of Environmental Management (DOE-EM) cleanup and closure decisions, but establish a modern high-quality code base for a growing interdisciplinary community. Specifically, ASCEM is leveraging advances and expertise from applied mathematics, computer and computational sciences, and the geosciences, in this new development. A toolset named Akuna will provide capabilities for data management, visualization, conceptual model development, uncertainty quantification, parameter estimation, risk analysis, and decision support. Akuna will integrate with Amanzi, a flexible high performance computing simulator, which is designed to leverage the growing parallelism in modern systems. This talk will describe the approach that we have taken to develop this new open-source capability, including issues of intellectual property, licensing, the developers tool chain, and the users tool chain. The modular and extensible design will be discussed, highlighting the potential for collaboration and inclusion of recent modeling and algorithmic advances. In addition, it will discuss the advantages and challenges of relying on an open-source model that leverages a wide variety of open-source efforts from other programs. Results from early prototype development will be presented to highlight the potential of these new tools to contaminated subsurface environments, including calculations for variably saturated flow, advection of non-reactive species and the reactive-transport of 17 different chemical species on both structured and unstructured meshes. JF - American Geophysical Union Fall Meeting AU - Dixon, P R AU - Moulton, J D AU - Gorton, I AU - Meza, J AU - Freshley, M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H53L EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - advanced simulation capability for Environmental Management KW - data processing KW - pollution KW - mathematical models KW - ASCEM program KW - simulation KW - remediation KW - models KW - environmental management KW - computer programs KW - visualization KW - transport KW - quantitative analysis KW - theoretical models KW - reactive transport KW - risk assessment KW - Akuna KW - Amanzi KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645575589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Amanzi+and+Akuna%3B+two+new+community+codes+for+subsurface+contaminant+flow+and+transport&rft.au=Dixon%2C+P+R%3BMoulton%2C+J+D%3BGorton%2C+I%3BMeza%2C+J%3BFreshley%2C+M%3BAnonymous&rft.aulast=Dixon&rft.aufirst=P&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H53L/abstracts/H53L-05.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-04-16 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - advanced simulation capability for Environmental Management; Akuna; Amanzi; ASCEM program; computer programs; data processing; environmental management; hydrology; mathematical models; models; pollution; quantitative analysis; reactive transport; remediation; risk assessment; simulation; theoretical models; transport; visualization ER - TY - JOUR T1 - Mass balances and uncertainty in radionuclide transport at the SRS F-area seepage basins groundwater plume AN - 1645574979; 2015-005236 AB - The ability to accurately model and predict flow and reactive transport behavior in soil and groundwater at a radioactively contaminated site is typically constrained by data availability. Techniques for managing, analyzing, and assessing the data are needed. There is a wealth of data and experience to be leveraged from the study of existing DOE sites such as the Savannah River Site (SRS). A new data management system is being developed as part of the Advanced Simulation Capability for Environmental Management (ASCEM) program to allow faster access to data and a more unified framework to address the challenges of site selection and environmental management. The monitoring network of 274 wells surrounding the F-area recorded 350000 data points over a period of almost 60 years. This data management system was developed for data mining, visualization and exploration and was used for F-area groundwater plume mass balance calculations. Process operations at the F-area led to the discharge of more than 12X10 (super 6) m (super 3) of low-level liquid radioactive waste solutions containing tritium, uranium and fission products into the seepage basins. Between 1953 and 1989, 14 10 (super 4) Ci (corrected for evaporation and decay to 1989) of tritium was released into the basins according to operational data. Starting in the 1950s, SRS monitored radioactivity in Fourmile Branch (FMB) located downgradient of the basins. Through 1989 a total of 5 10 (super 4) Ci (decay-corrected to 1989) was detected in FMB, leaving an estimated inventory of 9 10 (super 4) Ci in the subsurface as of 1989. The sources of uncertainty in the mass balance calculations are discussed and compared with the tritium inventory determined from groundwater monitoring data prior to remediation. JF - American Geophysical Union Fall Meeting AU - Wiedmer, A AU - Hunt, J R AU - Faybishenko, B AU - Agarwal, D AU - Flach, G P AU - Whiteside, T AU - Bennet, P AU - Bagwell, L AU - Romosan, A AU - Hubbard, S S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H53I EP - 1522 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - contaminant plumes KW - South Carolina KW - prediction KW - pollution KW - migration of elements KW - preferential flow KW - simulation KW - seepage KW - remediation KW - ground water KW - radioactive fallout KW - transport KW - mass balance KW - reactive transport KW - nuclear facilities KW - water wells KW - Savannah River Site KW - uncertainty KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1645574979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mass+balances+and+uncertainty+in+radionuclide+transport+at+the+SRS+F-area+seepage+basins+groundwater+plume&rft.au=Wiedmer%2C+A%3BHunt%2C+J+R%3BFaybishenko%2C+B%3BAgarwal%2C+D%3BFlach%2C+G+P%3BWhiteside%2C+T%3BBennet%2C+P%3BBagwell%2C+L%3BRomosan%2C+A%3BHubbard%2C+S+S%3BAnonymous&rft.aulast=Wiedmer&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H53I/abstracts/H53I-1522 LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2015-01-01 N1 - PubXState - DC N1 - Last updated - 2015-01-15 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - contaminant plumes; ground water; mass balance; migration of elements; nuclear facilities; pollution; prediction; preferential flow; radioactive fallout; reactive transport; remediation; Savannah River Site; seepage; simulation; South Carolina; transport; uncertainty; United States; water wells ER - TY - JOUR T1 - Reactive transport modeling of CO (sub 2) mineral sequestration in basaltic rocks AN - 1637536776; 2014-103367 AB - CO (sub 2) mineral sequestration in basalt may provide a long lasting, thermodynamically stable, and environmentally benign solution to reduce greenhouse gases in the atmosphere. Multi-dimensional, field scale, reactive transport models of this process have been developed with a focus on the CarbFix pilot CO (sub 2) injection in Iceland. An extensive natural analog literature review was conducted in order to identify the primary and secondary minerals associated with water-basalt interaction at low and elevated CO (sub 2) conditions. Based on these findings, an internally consistent thermodynamic database describing the mineral reactions of interest was developed and validated. Hydrological properties of field scale mass transport models were properly defined by calibration to field data using iTOUGH2. Reactive chemistry was coupled to the models and TOUGHREACT used for running predictive simulations carried out with the objective of optimizing long-term management of injection sites, to quantify the amount of CO2 that can be mineralized, and to identify secondary minerals that compete with carbonates for cations leached from the primary rock. Calibration of field data from the CarbFix reservoir resulted in a horizontal permeability for lava flows of 300 mD and a vertical permeability of 1700 mD. Active matrix porosity was estimated to be 8.5%. The CarbFix numerical models were a valuable engineering tool for designing optimal injection and production schemes aimed at increasing groundwater flow. Reactive transport simulations confirm dissolution of primary basaltic minerals as well as carbonate formation, and thus indicate in situ CO (sub 2) mineral sequestration in basalts to be a viable option. Furthermore, the simulations imply that clay minerals are most likely to compete with magnesite-siderite solid solutions for Mg and Fe leached from primary minerals, whereas zeolites compete with calcite for dissolved Ca. In the case of the CarbFix pilot injection, which involves a continuous injection of 1,100 tons CO (sub 2) in total for 6 months, the basalt hosted reservoir was estimated to have a 100% sequestering efficiency after 10 years. In the case of an upscaled 10 year long injection of 40,000 tons per year, sequestering efficiency of the same reservoir was estimated to be about 10% after 100 years. However, sequestering efficiency in the latter case has every potential of increasing substantially with time due to the vast amount of primary basaltic minerals in the reservoir. JF - American Geophysical Union Fall Meeting AU - Aradottir, E S AU - Sonnenthal, E L AU - Bjornsson, G AU - Jonsson, H AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H33B EP - 1297 PB - American Geophysical Union, Washington, DC VL - 2011 KW - hydrology KW - carbon sequestration KW - volcanic rocks KW - igneous rocks KW - climate change KW - carbon dioxide KW - models KW - gas injection KW - transport KW - natural analogs KW - basalts KW - reactive transport KW - reservoir properties KW - greenhouse gases KW - thermodynamic properties KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637536776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Reactive+transport+modeling+of+CO+%28sub+2%29+mineral+sequestration+in+basaltic+rocks&rft.au=Aradottir%2C+E+S%3BSonnenthal%2C+E+L%3BBjornsson%2C+G%3BJonsson%2C+H%3BAnonymous&rft.aulast=Aradottir&rft.aufirst=E&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - basalts; carbon dioxide; carbon sequestration; climate change; gas injection; geochemistry; greenhouse gases; hydrology; igneous rocks; models; natural analogs; reactive transport; reservoir properties; thermodynamic properties; transport; volcanic rocks ER - TY - JOUR T1 - Max magnitude of induced seismic events within CCS projects, related to the permeability of faults AN - 1637536683; 2014-103377 AB - The evaluation of the potential for induced seismicity and its effects on the surface is critical for public acceptance of geologic carbon sequestration. According to the Coulomb criterion, tau = C + mu (sigma n - p), seismic events can be induced by reactivation of existing faults due to enhancement in pore pressure (p) when the left-hand term (shear stress) of the equation is equal to or greater than the right-hand side (shear strength). However, large uncertainties exist in the values of in situ stress (sigma n) and fault properties; plus, faults may be below the detection limit and not identified prior to the start of a CO2 injection. In this study we discuss methods for bounding the earthquake magnitudes that could be induced during CO2 injection, focusing the attention on buried, undetectable faults (D < 10 m). We evaluate the maximum magnitude of a seismic event potentially due to a fault with these characteristics, theoretically, using empirical magnitude-versus-size formulas and allowing the whole fault plane to slip, and with the aid of a coupled multiphase fluid flow and geo-mechanical numerical model, for investigating the degree of conservatisms in the empirical approach. Faults can also act as preferential leaking paths, for brine and CO (sub 2) , in a CCS reservoir. Permeability of fault planes during and after slip is a parameter that needs to be estimated in order to run computer-based simulations on the hydro-mechanical response of geological features to a pressure buildup due to a fluid injection. This parameter is variable and it can range between values orders of magnitude higher than the seal rocks, and comparable with this last. Both cases are present in nature: if on the one hand fluid flow through fractures and fault planes is the main path for water in intrusive rocks, on the other hand, over-pressurized porous reservoirs are easily found in sedimentary basins, bounded by growth-faults (Ref, ref). These last are known to be mechanically active, presenting the highest values of displacement rates (displacement divided by time, averaged over hundreds/thousands of years), keeping hydrocarbons in place though. During CO2 injection, only part of the fault plane that is intersecting the injection zone and the adjacent hydraulic bounding formation will be pressurized by the injection. Results from previous numerical analysis show that, even if the fault plane is initially near critically stressed for shear reactivation, only a fraction of the surface is reactivated, around the pressure buildup. Thus, the maximum earthquake magnitude is limited by the size of the pressurized fault area. We studied the variation of the hydro-mechanical response of the system against time, after beginning of injection, varying the permeability of the fault plane and the thickness of the storage reservoir (pressurized fraction of the fault plane). JF - American Geophysical Union Fall Meeting AU - Mazzoldi, A AU - Rinaldi, A P AU - Rutqvist, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H33B EP - 1307 PB - American Geophysical Union, Washington, DC VL - 2011 KW - carbon sequestration KW - magnitude KW - fluid flow KW - slip rates KW - displacements KW - reactivation KW - seepage KW - rock mechanics KW - carbon dioxide KW - gas injection KW - fault planes KW - seismicity KW - multiphase flow KW - induced earthquakes KW - earthquakes KW - permeability KW - faults KW - 19:Seismology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637536683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Max+magnitude+of+induced+seismic+events+within+CCS+projects%2C+related+to+the+permeability+of+faults&rft.au=Mazzoldi%2C+A%3BRinaldi%2C+A+P%3BRutqvist%2C+J%3BAnonymous&rft.aulast=Mazzoldi&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; displacements; earthquakes; fault planes; faults; fluid flow; gas injection; induced earthquakes; magnitude; multiphase flow; permeability; reactivation; rock mechanics; seepage; seismicity; slip rates ER - TY - JOUR T1 - Effect of reservoir anisotropy on carbon dioxide dissolution-induced density-driven convection AN - 1637536376; 2014-103436 AB - Sequestering carbon dioxide by injecting it into non-potable aquifers overlain by suitable cap rock is being widely considered and field tested to reduce greenhouse gas emissions to the atmosphere. Being less dense than local brine, supercritical carbon dioxide introduced into the aquifer will tend to spread beneath the cap rock. Numerical and experimental investigations have shown that beneath the buoyant carbon dioxide layer, carbon dioxide dissolution into the brine will increase the density of the brine, resulting in an unstable condition in which denser brine overlies less dense brine. This instability can lead to dissolution-induced density-driven convection of the carbon dioxide laden brine, enhancing dissolution and the permanence of the sequestration. We have performed a series of visualization and quantitative laboratory experiments with homogeneous, heterogeneous, and anisotropic media to examine this process. Our visualization experiments have shown dense finger formation and flow into the underlying brine. These experiments have led us to quantitative measurements of density-driven convection from carbon dioxide dissolution under a variety of conditions. These conditions include high and low permeability porous media, layered media, and fluids including pure water and various brines. Density-driven convection was quantified by measuring the carbon dioxide uptake rate for the systems, and comparing it to the predicted diffusive uptake rate. Uptake rates exceeding the diffusive uptake rate are indicative of convection. Our results show the effects of density-driven convection were smaller for lower permeability and higher salinity conditions, whereas strong convection occurred for pure water in a highly permeable medium. Quantitative tests investigating the effect of anisotropy were based on visualization test results and layered systems were used in the experiments. Detailed experimental results and interpretation of these tests will also be discussed. JF - American Geophysical Union Fall Meeting AU - Kneafsey, T J AU - Pruess, K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H51G EP - 1274 PB - American Geophysical Union, Washington, DC VL - 2011 KW - toxic materials KW - experimental studies KW - carbon sequestration KW - numerical models KW - injection KW - solutes KW - pollution KW - porous materials KW - salinity KW - layered materials KW - ground water KW - carbon dioxide KW - aquifers KW - visualization KW - brines KW - cap rocks KW - testing KW - reservoir properties KW - greenhouse gases KW - saline composition KW - permeability KW - anisotropy KW - diffusivity KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637536376?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Effect+of+reservoir+anisotropy+on+carbon+dioxide+dissolution-induced+density-driven+convection&rft.au=Kneafsey%2C+T+J%3BPruess%2C+K%3BAnonymous&rft.aulast=Kneafsey&rft.aufirst=T&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H51G/abstracts/H51G-1274.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - anisotropy; aquifers; brines; cap rocks; carbon dioxide; carbon sequestration; diffusivity; experimental studies; greenhouse gases; ground water; injection; layered materials; numerical models; permeability; pollution; porous materials; reservoir properties; saline composition; salinity; solutes; testing; toxic materials; visualization ER - TY - JOUR T1 - From Nm-scale measurements of mineral dissolution rate to overall dissolution rate laws; a case study based on diopside AN - 1637536349; 2014-103424 AB - While we expect conventional reactive transport simulations to provide reliable estimations of the evolution of fluid-rock interactions over time scales of centuries and even more, recent experimental studies showed that they could hardly be satisfactorily used on simplified systems (e.g. batch carbonation experiments on single minerals), on time scales of weeks [1]. Among the reasons for such inconsistencies is the nature of the rate laws used in the geochemical codes, which heavily relies on our description of the fundamental mechanisms involved during water(-CO2)-mineral reactions. Silicate dissolution constitutes a key step of GCS processes. Whereas the dissolution rate of silicate minerals has been extensively studied at far-from-equilibrium conditions, extrapolating such rates over a broad range of solution composition relevant for GCS has proven challenging. Regarding diopside, recent studies [2, 3] suggested that below 125 degrees C, an unexpected drop of the rate occurred for Gibbs free energies of reaction (Delta Gr) as low as -76 kJ.mol-1, with severe consequences on our ability to predict the rate of complex processes such as carbonation reactions [3]. The mechanism responsible for such a drop remains unclear and therefore needs to be deciphered. An examination of our previous data [3] led us to envisage that two different, non-exclusive aspects were worth investigating: (i) the possible passivating ability of interfacial, nm-thick Si-rich layers developed on weathered silicate surface, and (ii) the stop of etch pits formation on crystal surface, each mechanism being found to be responsible for drops of olivine [1] and albite [4] dissolution rates, respectively. Our ongoing experiments aim at better constraining these two mechanisms, and determining in turn whether one of them could explain the above-mentioned drop of diopside dissolution rate. Classical flow-through experiments with controlled SiO2(aq) concentrations are combined with both ex situ AFM and VSI measurements and in situ monitoring of the topography of the dissolving surface of diopside in a hydrothermal AFM flow-cell (e.g. [5]). By investigating the dissolution of several cleavages, we will show how these latter techniques represent a powerful tool for studying the anisotropy of diopside dissolution, and determining which face ultimately controls its dissolution rate. An attempt to link these observations to macroscopic determination of diopside dissolution rates as a function of fluid composition will be discussed. [1] Daval et al. (2011) Chem. Geol., 284, 193-209. [2] Dixit & Carroll (2007) Geochem. T, 8, 1-14. [3] Daval et al. (2010) Geochim. Cosmochim. Ac., 74, 2615-2633. [4] Arvidson & Luttge (2010) Chem. Geol., 269, 79-88. [5] Saldi et al. (2009) Geochim. Cosmochim. Ac., 73, 5646-5657. JF - American Geophysical Union Fall Meeting AU - Daval, D AU - Saldi, G AU - Hellmann, R AU - Knauss, K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H51G EP - 1262 PB - American Geophysical Union, Washington, DC VL - 2011 KW - silicates KW - concentration KW - alteration KW - solutions KW - solutes KW - mechanism KW - rates KW - weathering KW - hydrothermal conditions KW - pyroxene group KW - clinopyroxene KW - diopside KW - crystal chemistry KW - anisotropy KW - chain silicates KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637536349?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=From+Nm-scale+measurements+of+mineral+dissolution+rate+to+overall+dissolution+rate+laws%3B+a+case+study+based+on+diopside&rft.au=Daval%2C+D%3BSaldi%2C+G%3BHellmann%2C+R%3BKnauss%2C+K%3BAnonymous&rft.aulast=Daval&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H51G/abstracts/H51G-1262.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - Number of references - 5 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - alteration; anisotropy; chain silicates; clinopyroxene; concentration; crystal chemistry; diopside; hydrothermal conditions; mechanism; pyroxene group; rates; silicates; solutes; solutions; weathering ER - TY - JOUR T1 - Numerical study of artificial seal formation to remedy leakage from geological CO2 storage reservoirs AN - 1637535200; 2014-103451 AB - In the Carbon dioxide Capture and Storage (CCS), the CO2 is captured from emission source and stored into geological reservoirs at a depth below 800 m. The injected CO2 is less dense than water, and as a result, it tends to migrate upward. For trapping to inhibit the upward migration of CO2, the reservoirs should be covered with a sufficiently impermeable seal, i.e. caprock. However, the caprock may contain imperfections such as faults and fractures which will play a role of a high permeability path to arise leakage of the injected CO2 from the reservoirs. Pressurization with the injected CO2 can create fissures that may transmit CO2 through the caprock (Zoback and Zinke, 2002). Preparing for such risk of CO2 leakage through pre-existing and/or induced fractures, the International Energy Agency (IEA) has pointed out the importance of establishing a ready-to-use strategy for remediation of leakage from CO2 storage reservoirs (IEA, 2007). As one possibility to realize the strategy, we have proposed a concept to use an aqueous solution (Ito et al., 2006). The solution will have a sufficiently-low viscosity for passing through even small aperture, and it will not impact formation permeability as long as the solution is left as it is. When the solution encounters dissolved CO2, precipitation will occur due to chemical reaction. As a result, the permeability will be reduced by filling the pores and fractures in the rocks with the precipitates. In the present study, we demonstrated first this idea through laboratory experiments simulating subsurface condition at 1000 m deep, i.e. 10 MPa and 40 deg. C, and using a silicate solution reacting with CO2. In this case, the solution - CO2 reaction will produce precipitates of amorphous silica. The results of laboratory experiments show that the present method led to a 99 % permeability reduction in a glass-bead artificial rock even its initially-high permeability of few darcy. Such reduction of permeability was reproduced successfully by the non-isothermal reactive geochemical transport program TOUGHREACT (Xu and Pruess, 2001; Xu et al., 2006). Based upon these success, the present method was applied by numerical modelling to a 2-D caprock-aquifer system under field physical and chemical conditions. Then we considered typical two cases to remedy CO2 leakage from a reservoir, in which the silica solution are injected after and before the occurrence of CO2 leakage respectively. For both the cases, the silica precipitates were produced and they filled up pores around outlet of the leakage path so sufficiently that the CO2 migration was blocked, and the condition was confirmed stable over a long time. JF - American Geophysical Union Fall Meeting AU - Ito, T AU - Tanaka, H AU - Xu, T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H51G EP - 1289 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water quality KW - carbon sequestration KW - reservoirs KW - numerical models KW - underground storage KW - aqueous solutions KW - remediation KW - ground water KW - carbon dioxide KW - aquifers KW - chemical reactions KW - transport KW - underground installations KW - cap rocks KW - reactive transport KW - TOUGHREACT KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637535200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Numerical+study+of+artificial+seal+formation+to+remedy+leakage+from+geological+CO2+storage+reservoirs&rft.au=Ito%2C+T%3BTanaka%2C+H%3BXu%2C+T%3BAnonymous&rft.aulast=Ito&rft.aufirst=T&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H51G/abstracts/H51G-1289.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aqueous solutions; aquifers; cap rocks; carbon dioxide; carbon sequestration; chemical reactions; ground water; numerical models; permeability; reactive transport; remediation; reservoirs; TOUGHREACT; transport; underground installations; underground storage; water quality ER - TY - JOUR T1 - Modeling of transient evolution of uplift and subsidence during CO (sub 2) storage operation at In Salah, Algeria AN - 1637534909; 2014-103376 AB - The Krechba gas field, at In Salah Algeria is currently utilized for a large CO (sub 2) storage demonstration project. In the last 6 years, 0.5 to 1.0 million tons of CO (sub 2) per year have been injected, through a horizontal well, into a 20 m thick storage formation with a relatively low permeability. The injected mass of carbon dioxide at one of the injection wells (KB-502) produces a measurable ground displacement of about 5 mm/yr. A double-lobe uplift pattern has been observed at KB-502 through satellite based measurements, and both semi-analytical inverse deformation analysis (Vasco et al., 2010) and coupled numerical modeling of fluid flow and geomechanics (Rutqvist et al., 2011) have shown that this pattern of displacement can be explained by injection-induced deformation in a deep vertical fracture zone of fault (few hundred meters up to a depth below 1600 m) intersecting the well of injection. The presence of such a fault has been also confirmed by recent 3D seismic survey (Gibson-Poole et al., 2010). Here we present modeling results of forward analysis using the coupled fluid flow and geomechanical simulator TOUGH-FLAC (Rutqvist et al. 2002). Starting from the results obtained by Rutqvist et al. (2011), here we implement a new, finer meshgrid within a larger domain (20 by 20 km, centered at the horizontal well) to account for a detailed analysis of deformation in the fault region and of the double-lobe uplift. Earlier model describes the deformation at In Salah using an overall average rate of injection. Here we studied the transient evolution of uplift and subsidence using the observed injection rate. Evolution has been analyzed for both the case of fracturing and opening at the fault with the aim of explaining any field observations. Effects of irreversible permeability increase during the re-injection have been also studied. JF - American Geophysical Union Fall Meeting AU - Rinaldi, A P AU - Rutqvist, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H33B EP - 1306 PB - American Geophysical Union, Washington, DC VL - 2011 KW - carbon sequestration KW - numerical models KW - North Africa KW - uplifts KW - fluid flow KW - subsidence KW - In Salah Algeria KW - displacements KW - deformation KW - oil and gas fields KW - rock mechanics KW - carbon dioxide KW - gas injection KW - Krechba Field KW - transient phenomena KW - Africa KW - Algeria KW - permeability KW - faults KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637534909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling+of+transient+evolution+of+uplift+and+subsidence+during+CO+%28sub+2%29+storage+operation+at+In+Salah%2C+Algeria&rft.au=Rinaldi%2C+A+P%3BRutqvist%2C+J%3BAnonymous&rft.aulast=Rinaldi&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Africa; Algeria; carbon dioxide; carbon sequestration; deformation; displacements; faults; fluid flow; gas injection; In Salah Algeria; Krechba Field; North Africa; numerical models; oil and gas fields; permeability; rock mechanics; subsidence; transient phenomena; uplifts ER - TY - JOUR T1 - Experimental methods for the simulation of supercritical CO (sub 2) injection at laboratory scale aimed to investigate capillary trapping AN - 1637533220; 2014-103442 AB - Geological storage of carbon dioxide in deep geologic formations is being considered as a technical option to reduce greenhouse gas loading to the atmosphere. The processes associated with the movement and stable trapping are complex in deep naturally heterogeneous formations. Three primary mechanisms contribute to trapping; capillary entrapment due to immobilization of the supercritical fluid CO (sub 2) within soil pores, liquid CO (sub 2) dissolving in the formation water and mineralization. Natural heterogeneity in the formation is expected to affect all three mechanisms. A research project is in progress with the primary goal to improve our understanding of capillary and dissolution trapping during injection and post-injection process, focusing on formation heterogeneity. It is expected that this improved knowledge will help to develop site characterization methods targeting on obtaining the most critical parameters that capture the heterogeneity to design strategies and schemes to maximize trapping. This research combines experiments at the laboratory scale with multiphase modeling to upscale relevant trapping processes to the field scale. This paper presents the results from a set of experiments that were conducted in an intermediate scale test tanks. Intermediate scale testing provides an attractive alternative to investigate these processes under controlled conditions in the laboratory. Conducting these types of experiments is highly challenging as methods have to be developed to extrapolate the data from experiments that are conducted under ambient laboratory conditions to high temperatures and pressures settings in deep geologic formations. We explored the use of a combination of surrogate fluids that have similar density, viscosity contrasts and analogous solubility and interfacial tension as supercritical CO (sub 2) -brine in deep formations. The extrapolation approach involves the use of dimensionless numbers such as Capillary number (Ca) and the Bond number (Bo). A set of experiments that captures some of the complexities of the geologic heterogeneity and injection scenarios are planned in a 4.8 m long tank. To test the experimental methods and instrumentation, a set of preliminary experiments were conducted in a smaller tank with dimensions 90 cm x 60 cm. The tank was packed to represent both homogeneous and heterogeneous conditions. Using the surrogate fluids, different injection scenarios were tested. Images of the migration plume showed the critical role that heterogeneity plays in stable entrapment. Destructive sampling done at the end of the experiments provided data on the final saturation distributions. Preliminary analysis suggests the entrapment configuration is controlled by the large-scale heterogeneities as well as the pore-scale entrapment mechanisms. The data was used in modeling analysis that is presented in a companion abstract. JF - American Geophysical Union Fall Meeting AU - Trevisan, L AU - Illangasekare, T H AU - Rodriguez, D AU - Sakaki, T AU - Cihan, A AU - Birkholzer, J T AU - Zhou, Q AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H51G EP - 1280 PB - American Geophysical Union, Washington, DC VL - 2011 KW - toxic materials KW - experimental studies KW - deep aquifers KW - contaminant plumes KW - injection KW - solutes KW - pollution KW - porous materials KW - capillarity KW - migration of elements KW - simulation KW - reservoir rocks KW - carbon dioxide KW - aquifers KW - models KW - laboratory studies KW - brines KW - traps KW - greenhouse gases KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637533220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Experimental+methods+for+the+simulation+of+supercritical+CO+%28sub+2%29+injection+at+laboratory+scale+aimed+to+investigate+capillary+trapping&rft.au=Trevisan%2C+L%3BIllangasekare%2C+T+H%3BRodriguez%2C+D%3BSakaki%2C+T%3BCihan%2C+A%3BBirkholzer%2C+J+T%3BZhou%2C+Q%3BAnonymous&rft.aulast=Trevisan&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H51G/abstracts/H51G-1280.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; brines; capillarity; carbon dioxide; contaminant plumes; deep aquifers; experimental studies; greenhouse gases; injection; laboratory studies; migration of elements; models; pollution; porous materials; reservoir rocks; simulation; solutes; toxic materials; traps ER - TY - JOUR T1 - Transport of tracers in fractured geothermal reservoirs including fluid-rock interactions AN - 1637533162; 2014-103350 AB - To provide a sustainable heat extraction rate, an enhanced geothermal system (EGS) requires adequate circulation of the working fluid through a heat exchanger, which is comprised of a network of open fractures. The permeability of the fracture network constrains the fluid flux, and the surface area of the matrix rocks in contact with the fluid constrains the power or efficiency of the heat exchanger. Consequently, these parameters (surface area and permeability) are crucial for determining the capacity and longevity of EGS systems. One promising approach to estimate these properties is to analyze natural and/or artificial tracer data that are subject to fracture-matrix interactions including matrix diffusion and chemical reactions of the tracer with the solid phase of the rock matrix. Analytical solutions for tracer transport are commonly used to analyze tracer test data. However, fluid-rock interactions (e.g., precipitation and dissolution reactions) can impact the tracer behavior, and analytical solutions for tracer transport associated with precipitation-dissolution reactions are limited in the literature. This study develops semi-analytical solutions for tracer transport in both a single-fracture and a multiple-fracture system associated with precipitation-dissolution reactions under transient transport conditions. For verification, the semi-analytical solutions are compared with numerical simulation results. Several examples show that results are sensitive to fracture spacing, fracture surface area, and bulk reaction rate, indicating that the relevant flow and transport parameters can be inferred by analyzing tracer signals. JF - American Geophysical Union Fall Meeting AU - Mukhopadhyay, S AU - Liu, H AU - Spycher, N AU - Kennedy, B M AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H32D EP - 05 PB - American Geophysical Union, Washington, DC VL - 2011 KW - solute transport KW - fractured materials KW - numerical models KW - fluid flow KW - hydrochemistry KW - geothermal energy KW - fractures KW - geothermal reservoirs KW - chemical reactions KW - water-rock interaction KW - transport KW - circulation KW - tracers KW - geochemistry KW - permeability KW - 29A:Economic geology, geology of energy sources KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637533162?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Transport+of+tracers+in+fractured+geothermal+reservoirs+including+fluid-rock+interactions&rft.au=Mukhopadhyay%2C+S%3BLiu%2C+H%3BSpycher%2C+N%3BKennedy%2C+B+M%3BAnonymous&rft.aulast=Mukhopadhyay&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - chemical reactions; circulation; fluid flow; fractured materials; fractures; geochemistry; geothermal energy; geothermal reservoirs; hydrochemistry; numerical models; permeability; solute transport; tracers; transport; water-rock interaction ER - TY - JOUR T1 - Development of the methodology needed to quantify risks to groundwater at CO (sub 2) storage sites AN - 1637532959; 2014-103371 AB - The National Risk Assessment Partnership (NRAP) is an effort that harnesses capabilities across five U.S. Department of Energy (DOE) national laboratories into a mission-focused platform to develop a defensible, science-based quantitative methodology for determining risk profiles at CO (sub 2) storage sites. NRAP is conducting risk and uncertainty analysis in the areas of reservoir performance, natural leakage pathways, wellbore integrity, groundwater protection, monitoring, and systems level modeling. The mission of NRAP is "to provide the scientific underpinning for risk assessment with respect to the long-term storage of CO (sub 2) , including assessment of residual risk associated with a site post-closure". Additionally, NRAP will develop a strategic, risk-based monitoring protocol, such that monitoring at all stages of a project effectively minimizes uncertainty in the predicted behavior of the site, thereby increasing confidence in storage integrity. NRAP's research focus in the area of groundwater protection is divided into three main tasks: 1) development of quantitative risk profiles for potential groundwater impacts; 2) filling key science gaps in developing those risk profiles; and 3) field-based confirmation. Within these three tasks, researchers are engaged in collaborative studies to determine metrics to identify system perturbation and their associated risk factors. Reservoir simulations are being performed to understand/predict consequences of hypothetical leakage scenarios, from which reduced order models are being developed to feed risk profile development. Both laboratory-based experiments and reactive transport modeling studies provide estimates of geochemical impacts over a broad range of leakage scenarios. This presentation will provide an overview of the research objectives within NRAP's groundwater protection focus area, as well as select accomplishments achieved to date. JF - American Geophysical Union Fall Meeting AU - Brown, Christopher F AU - Birkholzer, J T AU - Carroll, S AU - Hakala, A AU - Keating, E H AU - Lopano, Christina L AU - Newell, D L AU - Spycher, N AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H33B EP - 1301 PB - American Geophysical Union, Washington, DC VL - 2011 KW - water quality KW - monitoring KW - carbon sequestration KW - underground storage KW - pollution KW - seepage KW - ground water KW - carbon dioxide KW - mitigation KW - underground installations KW - risk assessment KW - water pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637532959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Development+of+the+methodology+needed+to+quantify+risks+to+groundwater+at+CO+%28sub+2%29+storage+sites&rft.au=Brown%2C+Christopher+F%3BBirkholzer%2C+J+T%3BCarroll%2C+S%3BHakala%2C+A%3BKeating%2C+E+H%3BLopano%2C+Christina+L%3BNewell%2C+D+L%3BSpycher%2C+N%3BAnonymous&rft.aulast=Brown&rft.aufirst=Christopher&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; ground water; mitigation; monitoring; pollution; risk assessment; seepage; underground installations; underground storage; water pollution; water quality ER - TY - JOUR T1 - Coupled reactive flow modeling with declining reactivity in fractured geothermal systems AN - 1637532844; 2014-103351 AB - Changes in permeability and fluid flow within geothermal systems are driven by geochemical reactions, advective and diffusive transport of heat and solute mass, and evolving thermal and mechanical environments. Representation of these simultaneous processes in numerical models is required for the characterization and simulation of natural geothermal systems. However, identifying and developing mathematical representations for all of the relevant mechanisms that control system behavior presents a major challenge. We have developed two-dimensional simulations of physical and chemical evolution in fractured granite under geothermal conditions with temperatures ranging from 150-300 degrees C. The goal of this study is to help identify possible sources for existing discrepancies between model results and laboratory-based measurements by adding a new mathematical formulation to the code TOUGHREACT. The revised code is designed to further quantify the link between the progressive evolution of reaction rates and alteration mineralogy. We explicitly couple reaction rates to mineral precipitation/dissolution effects by using an exponential function that defines evolving reactive surface areas in terms of each of the following (i) the accumulated total secondary mineral volume fraction, (ii) the accumulated clay (smectite) portion of the secondary mineral volume fraction, and (iii) the net change in mineral volume fraction (combined effects of dissolution and precipitation). We evaluate the performance of these three modified approaches by comparing simulation results to detailed laboratory measurements of fluid compositions, mineral abundances, and permeability changes in fractured Westerly granite and to previous one-dimensional simulations in which reactive surface areas were adjusted with time to match the observed fracture permeability history. The simulation results offer a potentially useful means of quantifying reactivity loss and of examining the extent to which secondary mineral precipitation controls primary mineral dissolution. The two-dimensional models also allow us to consider the importance of diffusion in controlling reaction behavior. We conclude that mathematically linking reactivity loss to declining surface area may be a viable way to obtain more accurate predictions of the spatial and temporal changes of key geothermal system properties (e.g., permeability, mineral compositions, and solute concentrations) over extended periods of time. Our findings suggest that modeling approaches that do not incorporate a mechanism for rapid changes in reactive surface area may over predict the rate of fracture permeability decay. Consequently, this work also implies that some fraction of the increased permeability resulting from fracture formation and reactivation in tectonically active geothermal systems may be maintained over significant time intervals. Therefore, the models provide a potential framework for predicting the long-term behavior of natural geothermal systems. JF - American Geophysical Union Fall Meeting AU - Palguta, J AU - Williams, C F AU - Ingebritsen, S AU - Hickman, S AU - Sonnenthal, E L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H32D EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - fractured materials KW - diffusion KW - numerical models KW - igneous rocks KW - granites KW - fluid flow KW - coupling KW - models KW - geothermal energy KW - reactivity KW - plutonic rocks KW - geothermal systems KW - chemical reactions KW - transport KW - precipitation KW - reactive transport KW - heat transfer KW - geochemistry KW - permeability KW - diffusivity KW - 29A:Economic geology, geology of energy sources KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637532844?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Coupled+reactive+flow+modeling+with+declining+reactivity+in+fractured+geothermal+systems&rft.au=Palguta%2C+J%3BWilliams%2C+C+F%3BIngebritsen%2C+S%3BHickman%2C+S%3BSonnenthal%2C+E+L%3BAnonymous&rft.aulast=Palguta&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - chemical reactions; coupling; diffusion; diffusivity; fluid flow; fractured materials; geochemistry; geothermal energy; geothermal systems; granites; heat transfer; igneous rocks; models; numerical models; permeability; plutonic rocks; precipitation; reactive transport; reactivity; transport ER - TY - JOUR T1 - Mapping and quantification of geologic CO (sub 2) emissions at Mammoth Mountain, CA and Soda Springs, ID, USA AN - 1637530458; 2014-103334 AB - We apply a diverse set of methods to map and quantify surface CO (sub 2) emissions with distinct styles and geologic sources at two natural CO (sub 2) release sites. Mammoth Mountain is a dormant volcano located in California, where volcanogenic CO (sub 2) is emitted diffusely through soils within relatively large (km (super 2) -scale) areas. We used the eddy covariance (EC) and accumulation chamber (AC) techniques at the Horseshoe Lake tree-kill area on Mammoth Mountain to map the spatial distribution of diffuse CO (sub 2) fluxes and quantify CO (sub 2) emission rate. EC measurements of CO (sub 2) flux during September-October 2010 ranged from 85 to 1766 g m (super -2) d (super -1) . Three AC soil CO (sub 2) flux surveys during this time were used to simulate maps of soil CO (sub 2) flux and estimate total emission rates. A least-squares inversion of measured EC CO (sub 2) fluxes and corresponding modeled source weight functions was carried out and recovered 58 to 77% of the CO (sub 2) emission rates estimated based on simulated AC soil CO (sub 2) fluxes. Spatial distributions of modeled surface CO (sub 2) fluxes based on EC and AC observations showed moderate to good correspondence (R (super 2) = 0.36 to 0.70). In Soda Springs, Idaho, CO (sub 2) of deep sedimentary origin is released at the surface from a number of relatively small-area carbonated spring sources. In Fall 2011, we will use for the first time the eddy covariance method in conjunction with aqueous geochemistry to map and quantify CO (sub 2) emissions from a high discharge spring and surrounding marsh area. Our results from Mammoth Mountain and Soda Springs should provide a framework for integrated monitoring of a range of surface CO (sub 2) leakage styles and geometries. JF - American Geophysical Union Fall Meeting AU - Lewicki, J L AU - Hilley, G E AU - McLing, Travis L AU - Dobeck, L AU - Marino, B AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H32B EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - Idaho KW - monitoring KW - statistical analysis KW - seepage KW - measurement KW - gases KW - carbon dioxide KW - California KW - Mammoth Mountain KW - Horseshoe Lake KW - volcanoes KW - springs KW - Soda Springs KW - soil gases KW - geochemistry KW - covariance analysis KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637530458?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mapping+and+quantification+of+geologic+CO+%28sub+2%29+emissions+at+Mammoth+Mountain%2C+CA+and+Soda+Springs%2C+ID%2C+USA&rft.au=Lewicki%2C+J+L%3BHilley%2C+G+E%3BMcLing%2C+Travis+L%3BDobeck%2C+L%3BMarino%2C+B%3BAnonymous&rft.aulast=Lewicki&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - California; carbon dioxide; covariance analysis; gases; geochemistry; Horseshoe Lake; Idaho; Mammoth Mountain; measurement; monitoring; seepage; Soda Springs; soil gases; springs; statistical analysis; United States; volcanoes ER - TY - JOUR T1 - Exploring for geothermal resource in a dormant volcanic system; the Haleakala Southwest Rift Zone, Maui, Hawai'i AN - 1637530424; 2014-103398 AB - Suites of new geophysical and geochemical surveys provide compelling evidence for geothermal resource at the Haleakala Southwest Rift Zone (HSWRZ) on Maui Island, Hawai'i. Ground-based gravity ( nearly equal 400 stations) coupled with heli-borne magnetics ( nearly equal 1500 line kilometers) define both deep and shallow fractures/faults while also delineating potentially widespread subsurface hydrothermal alteration on the lower flanks (below approximately 1800 feet a.s.l.). Multi-level, upward continuation calculations and 2-D gravity and magnetic modeling provide information on source depths, but lack of lithologic information leaves ambiguity in the estimates. Lithology and physical property data from future drilling will improve these interpretations. Additionally, several well-defined gravity lows (possibly vent zones) lie coincident with magnetic highs suggesting the presence of dike intrusions at depth; a potentially young source of heat for a modern geothermal system. Soil CO (sub 2) fluxes were measured along transects across geophysically-defined faults and fractures as well as young cinder cones along the HSWRZ; a weak anomalous flux signal was observed at one young cinder cone location. Dissolved inorganic carbon concentrations and delta 13C compositions and (super 3) He/ (super 4) He values measured in several shallow groundwater samples indicate addition of magmatic CO (sub 2) and He to the groundwater system. The general lack of observed magmatic surface CO (sub 2) signals on the HSWRZ is therefore likely due to a combination of groundwater "scrubbing" of CO (sub 2) and relatively high biogenic surface CO (sub 2) fluxes that mask magmatic CO (sub 2) . Similar surveys at the Puna geothermal field on the Kilauea Lower East Rift Zone (KLERZ) also showed a lack of surface CO (sub 2) flux signals attributed to a magmatic source, while aqueous geochemistry indicated contribution of magmatic CO (sub 2) and He to shallow groundwaters at both Maui and Puna. As magma has been intercepted in geothermal drilling at the Puna field, the lack of measured surface CO (sub 2) flux associated with upflow of magmatic fluids here is likely due to the aforementioned "scrubbing" from extensive groundwater flow, as well as high background biogenic CO (sub 2) flux. Deep, temperature gradient core holes have been sited based on these geophysical and geochemical datasets. JF - American Geophysical Union Fall Meeting AU - Martini, B A AU - Lewicki, J L AU - Kennedy, B M AU - Lide, C AU - Oppliger, G AU - Drakos, P S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H51C EP - 1222 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - rift zones KW - Haleakala Southwest Rift Zone KW - Haleakala KW - Hawaii KW - East Pacific Ocean Islands KW - cinder cones KW - metasomatism KW - Maui County Hawaii KW - two-dimensional models KW - Maui KW - geothermal energy KW - gravity anomalies KW - fractures KW - geothermal reservoirs KW - volcanic features KW - geothermal systems KW - geothermal exploration KW - Oceania KW - hydrothermal alteration KW - Polynesia KW - faults KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637530424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Exploring+for+geothermal+resource+in+a+dormant+volcanic+system%3B+the+Haleakala+Southwest+Rift+Zone%2C+Maui%2C+Hawai%27i&rft.au=Martini%2C+B+A%3BLewicki%2C+J+L%3BKennedy%2C+B+M%3BLide%2C+C%3BOppliger%2C+G%3BDrakos%2C+P+S%3BAnonymous&rft.aulast=Martini&rft.aufirst=B&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H51C/abstracts/H51C-1222.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - cinder cones; East Pacific Ocean Islands; faults; fractures; geothermal energy; geothermal exploration; geothermal reservoirs; geothermal systems; gravity anomalies; Haleakala; Haleakala Southwest Rift Zone; Hawaii; hydrothermal alteration; Maui; Maui County Hawaii; metasomatism; Oceania; Polynesia; rift zones; two-dimensional models; United States; volcanic features ER - TY - JOUR T1 - Evaluating the geochemically induced swelling/shrinkage of the near-field host clay rock using a THC model and the diffuse double layer theory AN - 1637530073; 2014-103391 AB - One advantage of emplacing nuclear waste in a clay formation is the potential self-sealing capability due to clay swelling. The swelling properties of the near-field host clay rock can be altered due to geochemical factors, including changes in groundwater geochemistry, proportions of exchangeable cations, and swelling clay mineral abundances. The clay host rock can also undergo geochemical changes due to the interaction with the engineered barrier system (EBS) materials. In this paper, coupled thermal, hydrological, and chemical (THC) models are linked with a swelling model based on diffuse double layer (DDL) theory and changes in the swelling properties of clay host rocks in the near field area are evaluated. Findings based on THC simulations using the reaction-transport code TOUGHREACT include: 1) Significant changes in the swelling pressure could be expected depending on various hydrogeologic and geochemical conditions. The change of hydration rate of the EBS (via the adjustment of tortuosity) could have significant effect on the swelling pressure. 2) Geochemically-induced swelling/shrinkage only occurs in the near-field area, within a few meters from the EBS interface. 3) Swelling/shrinkage induced porosity change is generally much smaller than that caused by mineral precipitation/dissolution. 4) The geochemically-induced swelling/shrinkage of host clay rock is the combined effect of variation in the pore water geochemistry, exchangeable cations, and smectite abundance. Neglecting any of these three latter factors might lead to a miscalculation of the geochemically-induced swelling pressure. JF - American Geophysical Union Fall Meeting AU - Zheng, L AU - Liu, H AU - Birkholzer, J T AU - Houseworth, J E AU - Sonnenthal, E L AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H51C EP - 1215 PB - American Geophysical Union, Washington, DC VL - 2011 KW - silicates KW - clay KW - simulation KW - radioactive waste KW - ground water KW - controls KW - transport KW - sediments KW - reactive transport KW - TOUGHREACT KW - chemical composition KW - disposal barriers KW - diffusivity KW - toxic materials KW - sealing KW - cation exchange capacity KW - clastic sediments KW - host rocks KW - solutes KW - smectite KW - pollution KW - migration of elements KW - porosity KW - clay minerals KW - models KW - expansive materials KW - sheet silicates KW - waste disposal KW - pore water KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1637530073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Evaluating+the+geochemically+induced+swelling%2Fshrinkage+of+the+near-field+host+clay+rock+using+a+THC+model+and+the+diffuse+double+layer+theory&rft.au=Zheng%2C+L%3BLiu%2C+H%3BBirkholzer%2C+J+T%3BHouseworth%2C+J+E%3BSonnenthal%2C+E+L%3BAnonymous&rft.aulast=Zheng&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H51C/abstracts/H51C-1215.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - cation exchange capacity; chemical composition; clastic sediments; clay; clay minerals; controls; diffusivity; disposal barriers; expansive materials; ground water; host rocks; migration of elements; models; pollution; pore water; porosity; radioactive waste; reactive transport; sealing; sediments; sheet silicates; silicates; simulation; smectite; solutes; TOUGHREACT; toxic materials; transport; waste disposal ER - TY - JOUR T1 - Effects of organic ligands and temperature variations on the kinetics of olivine carbonation and the formation of associated secondary phases AN - 1629938007; 2014-092445 AB - The slow dissolution kinetics of Mg-rich silicates has become a critical issue for the geologic CO (sub 2) sequestration in basic rocks. Previous batch carbonation studies on San Carlos olivine (super [1]) performed in CO (sub 2) saturated water (at 90 degrees C and P CO (sub 2) = 280 bar) have focused on the role that secondary phases, such as amorphous silica layers (SiO (sub 2) (am)), have on the transport of reactants from and to the reactive surfaces. The fluid composition remained roughly constant over the duration of the experiment, close to saturation with respect to amorphous silica and with a [Mg (super 2+) ]/[SiO (sub 2) (aq)] ratio close to stoechiometric release, suggesting a passivation of the olivine surface by the silica layer. In order to accelerate the dissolution process, organic ligands such as citrate and acetate were added to the solutions and tested at 1M and 0.1M concentrations in similar batch experiments. An intrinsic increase of the dissolution rate of olivine was expected (super [2], [3]) prior to the formation of a passivating silica layer. Preliminary results confirm this idea since Mg was released in non-stoechimoetric proportions with respect to SiO (sub 2) (aq) (found to be in equilibrium with SiO (sub 2) (am)). Similarly, a slight increase of temperature (from 90 degrees C to 120 degrees C) accelerated the reaction kinetics as well, possibly impacting the textural properties of SiO (sub 2) (am). Current TEM investigations are directed to confirming a possible link between the observed increase of the rate and textural properties of secondary phases. In addition, because carbonate minerals have a retrograde solubility, thermodynamical modelling suggests that this temperature increase should allow the fluid to reach saturation with respect to carbonates before reaching saturation with respect to SiO (sub 2) (am). Enough Mg can therefore be released to initiate the formation of carbonates before the silica precipitates and passivates the olivine surface. [1] Daval et al (2011), Chemical Geology, v.284, p.193-209 [2] Grandstaff, D.E. (1986) In: Colman, S.M., Dethier, D.P. Eds., Rates of Chemical Weathering of Rocks and Minerals. 41-57. [3] Krevor and Lackner (2009) Energy Procedia v 1, 4867-4871. JF - American Geophysical Union Fall Meeting AU - Sissmann, O AU - Daval, D AU - Martinez, I AU - Brunet, F AU - Verlaguet, A AU - Pinquier, Y AU - Guyot, F J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GC43E EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - silicates KW - experimental studies KW - carbon sequestration KW - solutes KW - olivine group KW - solubility KW - San Carlos Olivine KW - nesosilicates KW - models KW - ligands KW - chemical reactions KW - saturation KW - phase equilibria KW - mineral carbonation KW - olivine KW - orthosilicates KW - thermodynamic properties KW - crystal chemistry KW - kinetics KW - carbonates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1629938007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Effects+of+organic+ligands+and+temperature+variations+on+the+kinetics+of+olivine+carbonation+and+the+formation+of+associated+secondary+phases&rft.au=Sissmann%2C+O%3BDaval%2C+D%3BMartinez%2C+I%3BBrunet%2C+F%3BVerlaguet%2C+A%3BPinquier%2C+Y%3BGuyot%2C+F+J%3BAnonymous&rft.aulast=Sissmann&rft.aufirst=O&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/GC/sessions/GC43E/abstracts/GC43E-06.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-12-04 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon sequestration; carbonates; chemical reactions; crystal chemistry; experimental studies; kinetics; ligands; mineral carbonation; models; nesosilicates; olivine; olivine group; orthosilicates; phase equilibria; San Carlos Olivine; saturation; silicates; solubility; solutes; thermodynamic properties ER - TY - JOUR T1 - Impact of geochemical reactions on performance of enhanced geothermal systems using CO2 as working fluid AN - 1623263768; 2014-087365 AB - In recent years, as part of an effort to reduce atmospheric emissions of carbon dioxide (CO2), a novel concept of operating enhanced geothermal system (EGS) using CO2 instead of water as working fluid (CO2-EGS) and achieving simultaneous geologic sequestration of CO2 has been evaluated. CO2 appears to be superior to water in extracting heat from hot fractured rock and reducing the power consumption of the fluid circulation system, because its large expansivity and lower viscosity result in substantially greater mass flow rates than those of water. However, there remain uncertainties about chemical interactions between fluids and rocks. CO2 itself would not be a strong solvent for rock minerals, but aqueous solutions of CO2 can be quite corrosive and capable of dissolving minerals and even attacking the steel liners and casings used in the well construction. Such different chemical reactions by changes of the fluid phases may significantly alter hydrodynamic properties of EGS reservoirs over time and space, affecting heat extraction rates. Therefore, it is critical to conduct comprehensive studies on chemical interactions between fluids and rocks and their impact on the operation of EGS. We have performed reactive transport modeling to study the impact of fluid-rock interactions on CO2-driven EGS, particularly focusing on mineral alteration and associated porosity changes and their impact on reservoir growth and longevity. In addition, the potential ancillary benefit of CO2 sequestration in the system is evaluated. We consider an idealized fractured reservoir system with a five-spot well configuration in a two-dimensional model. Data for mineralogical composition are taken from various EGS sites such as Soultz and Desert Peak for our numerical analyses. This modeling study could provide a guidance for identification of future CO2-EGS demonstration sites. JF - American Geophysical Union Fall Meeting AU - Jung, Y AU - Xu, T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21E EP - 1177 PB - American Geophysical Union, Washington, DC VL - 2011 KW - carbon sequestration KW - enhanced recovery KW - hot dry rocks KW - porosity KW - two-dimensional models KW - carbon dioxide KW - geothermal energy KW - naturally fractured reservoirs KW - geochemical methods KW - hydrodynamics KW - reservoir properties KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623263768?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Impact+of+geochemical+reactions+on+performance+of+enhanced+geothermal+systems+using+CO2+as+working+fluid&rft.au=Jung%2C+Y%3BXu%2C+T%3BAnonymous&rft.aulast=Jung&rft.aufirst=Y&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; enhanced recovery; geochemical methods; geothermal energy; hot dry rocks; hydrodynamics; naturally fractured reservoirs; permeability; porosity; reservoir properties; two-dimensional models ER - TY - JOUR T1 - A modeling and numerical algorithm for thermoporomechanics in multiple porosity media for naturally fractured reservoirs AN - 1623263747; 2014-087359 AB - Rigorous modeling of coupling between fluid, heat, and geomechanics (thermo-poro-mechanics), in fractured porous media is one of the important and difficult topics in geothermal reservoir simulation, because the physics are highly nonlinear and strongly coupled. Coupled fluid/heat flow and geomechanics are investigated using the multiple interacting continua (MINC) method as applied to naturally fractured media. In this study, we generalize constitutive relations for the isothermal elastic dual porosity model proposed by Berryman (2002) to those for the non-isothermal elastic/elastoplastic multiple porosity model, and derive the coupling coefficients of coupled fluid/heat flow and geomechanics and constraints of the coefficients. When the off-diagonal terms of the total compressibility matrix for the flow problem are zero, the upscaled drained bulk modulus for geomechanics becomes the harmonic average of drained bulk moduli of the multiple continua. In this case, the drained elastic/elastoplastic moduli for mechanics are determined by a combination of the drained moduli and volume fractions in multiple porosity materials. We also determine a relation between local strains of all multiple porosity materials in a gridblock and the global strain of the gridblock, from which we can track local and global elastic/plastic variables. For elastoplasticity, the return mapping is performed for all multiple porosity materials in the gridblock. For numerical implementation, we employ and extend the fixed-stress sequential method of the single porosity model to coupled fluid/heat flow and geomechanics in multiple porosity systems, because it provides numerical stability and high accuracy. This sequential scheme can be easily implemented by using a porosity function and its corresponding porosity correction, making use of the existing robust flow and geomechanics simulators. We implemented the proposed modeling and numerical algorithm to the reaction transport simulator TOUGHREACT coupled to ROCMECH (geomechanics simulator), and tested 1D and 2D small-scale problems. The numerical results show clear differences between the single and dual/multiple porosity systems. For example, the pressure in the fracture for the five-porosity model becomes higher than those for the single porosity system because the fracture bulk modulus is lower than the upscaled bulk modulus used in the single porosity. For elastoplasticity (the Mohr-Coulomb model), the pressure in the fracture can be supported by compaction when the fracture is in the plastic region. In a 2D case of the five-porosity system, we compare results of thermoporoelasticity with those of a conventional flow simulation using rock compressibility, and find significant differences between them. In conclusion, introducing multiple continuum concepts into geomechanical descriptions of fractured rock can provide more accurate models for coupled flow and geomechanics in fractured porous media. JF - American Geophysical Union Fall Meeting AU - Kim, J AU - Sonnenthal, E L AU - Rutqvist, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21E EP - 1171 PB - American Geophysical Union, Washington, DC VL - 2011 KW - geothermal energy KW - numerical models KW - elastoplastic materials KW - naturally fractured reservoirs KW - thermomechanical properties KW - reservoir properties KW - mapping KW - geothermal engineering KW - porosity KW - permeability KW - compressibility KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623263747?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+modeling+and+numerical+algorithm+for+thermoporomechanics+in+multiple+porosity+media+for+naturally+fractured+reservoirs&rft.au=Kim%2C+J%3BSonnenthal%2C+E+L%3BRutqvist%2C+J%3BAnonymous&rft.aulast=Kim&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - compressibility; elastoplastic materials; geothermal energy; geothermal engineering; mapping; naturally fractured reservoirs; numerical models; permeability; porosity; reservoir properties; thermomechanical properties ER - TY - JOUR T1 - Simulation studies on enhanced geothermal systems with CO2 as a working fluid AN - 1623259718; 2014-087339 AB - Supercritical CO2 has recently been considered as a working fluid in enhanced geothermal systems (EGS), given its non-ionic nature, larger expansivity and lower viscosity compared to water. In addition, an EGS with supercritical CO2 as a working fluid may also act as a mechanism for CO2 sequestration. To explore this, one must understand the various interactions that may take place between the reservoir rock and the supercritical CO2. In this work, we perform simulations in two and three dimensions using the massively parallel flow and transport code PFLOTRAN, to study these interactions under various conditions (aqueous, non-aqueous and two-phase). The two dimensional results using PFLOTRAN are compared with simulations made using the TOUGH2 code. Numerical studies examining mineral dissolution and precipitation reactions that may occur in EGS that use supercritical CO2 are also shown, in addition to preliminary indications of which well placements may enable optimal flow rates and simultaneous CO2 sequestration. JF - American Geophysical Union Fall Meeting AU - Karra, S AU - Ayling, B AU - Han, W AU - Lichtner, P C AU - Lu, C AU - McPherson, Brian J AU - McLin, K S AU - Moore, J AU - Pan, F AU - Rose, P E AU - Xu, T AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21C EP - 1126 PB - American Geophysical Union, Washington, DC VL - 2011 KW - TOUGH2 KW - geothermal energy KW - computer programs KW - petroleum engineering KW - carbon sequestration KW - numerical models KW - viscosity KW - three-dimensional models KW - enhanced recovery KW - simulation KW - carbon dioxide KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623259718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Simulation+studies+on+enhanced+geothermal+systems+with+CO2+as+a+working+fluid&rft.au=Karra%2C+S%3BAyling%2C+B%3BHan%2C+W%3BLichtner%2C+P+C%3BLu%2C+C%3BMcPherson%2C+Brian+J%3BMcLin%2C+K+S%3BMoore%2C+J%3BPan%2C+F%3BRose%2C+P+E%3BXu%2C+T%3BAnonymous&rft.aulast=Karra&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; computer programs; enhanced recovery; geothermal energy; numerical models; petroleum engineering; simulation; three-dimensional models; TOUGH2; viscosity ER - TY - JOUR T1 - Impact-driven pressure management for leaky CO (sub 2) storage systems AN - 1623259453; 2014-087475 AB - Large-scale pressure buildup in response to carbon dioxide injection in the subsurface may limit the dynamic storage capacity of suitable formations, because over-pressurization can impact caprock integrity, induce micro-seismicity in critically stressed faults, drive CO2 and/or brine up conductive features into shallow groundwater resources, and affect existing subsurface activities such as oil and gas production. It has recently been suggested that pressure management schemes involving the extraction of native fluids from storage formations may be used to control subsurface pressure increases caused by CO2 injection, thereby limiting the possibility of unwanted effects such as brine leakage to shallow freshwater aquifers and also reducing the potentially large Areas of Review, which in the U.S. EPA's regulation for CO2 sequestration projects are the subsurface domains that need to be characterized for local conductive features in order to obtain a permit. Our study presents application of a newly developed analytical solution to evaluate the effectiveness of fluid extraction in managing pressure buildup caused by CO2 injection and storage. We use a hypothetical yet complex example case with multiple leaky wells and a critically stressed fault. Different pressure management schemes involving (passive) pressure relief wells, active extraction wells, combinations of both, disposal of brine, and/or re-injection of brine were tested with respect to predefined performance criteria, such as the maximum allowable pressure near the conductive fault. Options for optimal well placement were also evaluated, comparing near-field arrays of extraction wells (i.e., near the injection wells) with far-field arrays (e.g., near the fault). Far-field well placement allows for a significant reduction in the brine extraction rates needed to keep pressure increase below the target performance criterion. Based on these findings, we developed the concept of "impact-driven pressure management (IDPM)", with which we mean fluid extraction schemes that are optimized to meet local performance criteria (i.e., schemes that limit pressure increases primarily where environmental impact is a concern). Compared to simple pressure management schemes that often assume near-field and volume-equivalent extractions, IDPM can lead to significant cost reduction, in particular if brines need to be disposed at the surface and no beneficial use is possible. JF - American Geophysical Union Fall Meeting AU - Birkholzer, J T AU - Cihan, A AU - Zhou, Q AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H41K EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - carbon sequestration KW - pressure KW - numerical models KW - regulations KW - government agencies KW - U. S. Environmental Protection Agency KW - ground water KW - carbon dioxide KW - aquifers KW - gas injection KW - brines KW - cap rocks KW - shallow aquifers KW - greenhouse gases KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623259453?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Impact-driven+pressure+management+for+leaky+CO+%28sub+2%29+storage+systems&rft.au=Birkholzer%2C+J+T%3BCihan%2C+A%3BZhou%2C+Q%3BAnonymous&rft.aulast=Birkholzer&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; brines; cap rocks; carbon dioxide; carbon sequestration; gas injection; government agencies; greenhouse gases; ground water; numerical models; pressure; regulations; shallow aquifers; U. S. Environmental Protection Agency ER - TY - JOUR T1 - Using 3D MT inversion to better understand Iceland geothermal systems AN - 1623258754; 2014-087357 AB - Inversions and interpretations of three-dimensional (3D) magnetotelluric MT data acquired over Iceland high-temperature neo-volcanic complexes Krafla and Hengill demonstrate capability of the technique to characterize the electrical structure of geothermal reservoirs in a single self-consistent manner, presumably optimal accuracy and resolution, and such contribute to a better understanding of complex geothermal systems. Resistivity in geothermal areas is governed not only by presence of fluids and temperature, but also by hydrothermal alteration products, since they contain clays. The inverted model of Krafla dataset reveals the presence of highly resistive near surface layer, identified as unaltered porous basalt, which covers a low resistivity cap corresponding to the smectite-zeolite zone. Below this cap a more resistive zone is classified as the epidote-chlorite zone or also called the resistive core. Resistivity in the upper 1-2 km does not to correlate with lithology but with alteration mineralogy. At the site of the IDDP well, which encountered magma at 2.1 km depth, the resistivity image shows high resistivity most likely due to epidote-chlorite geology. Just to the northwest of the well, however, an intrusive electrically conductive feature has been imaged rising from depth, and has been interpreted as a magma reservoir. A possible explanation for the magma encounter at the IDDP well is the existence of pathways or fissures connecting the magma chamber to the well. The MT response to magma pathways at such scales is not observable in the data. The Hengill Complex hosts three volcanic centers, and is bisected by a long fissure swarm. The inverted model of Hengill dataset identified two low-resistivity layers. The nature of the uppermost low-resistivity layer and the increasing resistivity below is due to hydrothermal mineral alteration while the nature of the deep low-resistivity layer is not yet well understood. This dataset also clearly illustrates the importance of 3D imaging. Field data show strong three-dimensionality and 2D inversions were unable to fit measured data. JF - American Geophysical Union Fall Meeting AU - Gasperikova, E AU - Newman, G A AU - Feucht, D W AU - Arnason, K AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21E EP - 1169 PB - American Geophysical Union, Washington, DC VL - 2011 KW - Hengill Complex KW - Western Europe KW - three-dimensional models KW - geophysical methods KW - Europe KW - metasomatism KW - magnetotelluric methods KW - geothermal energy KW - geothermal exploration KW - deep drilling KW - reservoir properties KW - hydrothermal alteration KW - drilling KW - Iceland KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623258754?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Using+3D+MT+inversion+to+better+understand+Iceland+geothermal+systems&rft.au=Gasperikova%2C+E%3BNewman%2C+G+A%3BFeucht%2C+D+W%3BArnason%2C+K%3BAnonymous&rft.aulast=Gasperikova&rft.aufirst=E&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - deep drilling; drilling; Europe; geophysical methods; geothermal energy; geothermal exploration; Hengill Complex; hydrothermal alteration; Iceland; magnetotelluric methods; metasomatism; reservoir properties; three-dimensional models; Western Europe ER - TY - JOUR T1 - EGS exploration methodology development using the Dixie Valley geothermal wellfield as a calibration site, a progress report AN - 1623258419; 2014-087361 AB - An Engineered Geothermal System (EGS) exploration methodology is being developed using the Dixie Valley geothermal system in Nevada as a field laboratory. This area was chosen as the test site because its has an extensive public domain database and deep geothermal wells allowing for calibration of the developed methodology. The calibration effort is focused on the Dixie Valley Geothermal Wellfield (DVGW), an area with 30 geothermal wells. Calibration will be based on cross-correlation of qualitative and quantitative results with known well conditions. This project is structured in the following manner (Task 1) review and assess existing public domain and other available data (baseline data); (Task 2) develop and populate a GIS-database; (Task 3) develop a baseline (existing public domain data) geothermal conceptual model, evaluate the geostatistical relationships between the various data sets, and generate a Baseline EGS favorability map from the surface to a 5-km depth focused on identifying EGS drilling targets; (Task 4) collect new gravity, seismic, magneto-tellurics (MT), geologic, and geochemical data to fill in data gaps and improve model resolution; and (Task 5) update the GIS-database for the newly acquired data and repeating the elements of Task 3 incorporating the baseline and new data to generate an Enhanced EGS Favorability Map. Innovative aspects of this project include: (1) developing interdisciplinary method(s) for synthesizing, integrating, and evaluating geoscience data both qualitatively and quantitatively; (2) demonstrating new seismic techniques based on ambient noise which is a passive survey not requiring local earthquakes and is a relatively inexpensive method to image seismic velocity, attenuation, and density; (3) determining if seismic data can infer temperature and lithology at depth; (4) extending 2D MT modeling/mapping to 3D MT; (5) generating a MT derived temperature map; and (6) jointly analyzing gravity, magnetic, seismic, and MT data to the degree feasible to reduce non-uniqueness of geophysical data. Tasks 1 and 2 have been completed except for thermal modeling. The baseline geothermal conceptual model, the geostatistical analysis, and formulation of an EGS Favorability Map are in progress and expected to be completed by the time of the annual meeting. Task 4 is underway to collect primarily higher resolution geophysical data. The new surveys will cover an area slightly larger than the 50km X 50km Project Area centered over the DVGW. Selected results of the data review, the baseline conceptual model, geostatistical correlations between various data sets, the Baseline EGS Favorability Map and the new planned surveys will be discussed. JF - American Geophysical Union Fall Meeting AU - Iovenitti, J L AU - Blackwell, D D AU - Sainsbury, J AU - Tibuleac, I M AU - Waibel, A AU - Cladouhos, T T AU - Karlin, R AU - Kennedy, B M AU - Isaaks, E AU - Wannamaker, P E AU - Clyne, M AU - Callahan, O AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H21E EP - 1173 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - geothermal wells KW - statistical analysis KW - geophysical methods KW - mapping KW - geostatistics KW - Dixie Valley Field KW - seismic methods KW - magnetotelluric methods KW - geothermal energy KW - progress report KW - geothermal exploration KW - geographic information systems KW - report KW - information systems KW - Nevada KW - field studies KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623258419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=EGS+exploration+methodology+development+using+the+Dixie+Valley+geothermal+wellfield+as+a+calibration+site%2C+a+progress+report&rft.au=Iovenitti%2C+J+L%3BBlackwell%2C+D+D%3BSainsbury%2C+J%3BTibuleac%2C+I+M%3BWaibel%2C+A%3BCladouhos%2C+T+T%3BKarlin%2C+R%3BKennedy%2C+B+M%3BIsaaks%2C+E%3BWannamaker%2C+P+E%3BClyne%2C+M%3BCallahan%2C+O%3BAnonymous&rft.aulast=Iovenitti&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - Dixie Valley Field; field studies; geographic information systems; geophysical methods; geostatistics; geothermal energy; geothermal exploration; geothermal wells; information systems; magnetotelluric methods; mapping; Nevada; progress report; report; seismic methods; statistical analysis; United States ER - TY - JOUR T1 - CO (sub 2) plume and parameter estimation and uncertainty quantification via monitoring data for geological carbon sequestration AN - 1623258260; 2014-087479 AB - We first present a methodology for automatic CO2 plume and parameter estimation for geological carbon sequestration using monitoring data (pressure and gas saturation). The challenge is to be able to calibrate a computationally expensive process based model (TOUGH2) via tailored optimization algorithms and balancing the trade off between the acquisition of expensive monitoring data and the quality of parameter and plume estimates. After comparing multiple optimization algorithms and selecting the best one (Stochastic RBF) for a heterogeneous, 6-parameter problem, we show the effect of monitoring data on CO2 plume estimates, both in the present (when the last measurement has been made) and far in the future. Secondly, we carry out an uncertainty quantification on the model parameter estimates via a computationally efficient method (SOARS) that replaces the expensive MCMC algorithm. We vary the amount and quality of the monitoring data and show the effect on parameter distributions. These distributions can then be easily sampled to construct probability distributions for the position of the CO2 plume. JF - American Geophysical Union Fall Meeting AU - Espinet, A J AU - Shoemaker, C A AU - Doughty, C A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H41K EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - plumes KW - monitoring KW - carbon sequestration KW - pressure KW - underground storage KW - statistical analysis KW - carbon dioxide KW - gas injection KW - saturation KW - quantitative analysis KW - underground installations KW - probability KW - greenhouse gases KW - uncertainty KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623258260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=CO+%28sub+2%29+plume+and+parameter+estimation+and+uncertainty+quantification+via+monitoring+data+for+geological+carbon+sequestration&rft.au=Espinet%2C+A+J%3BShoemaker%2C+C+A%3BDoughty%2C+C+A%3BAnonymous&rft.aulast=Espinet&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; gas injection; greenhouse gases; monitoring; plumes; pressure; probability; quantitative analysis; saturation; statistical analysis; uncertainty; underground installations; underground storage ER - TY - JOUR T1 - Modeling permeability evolution by precipitation and dissolution; from a single-pore channel to heterogeneous multi-pore systems AN - 1566812471; 2014-074572 AB - Permeability modification by mineral precipitation or dissolution can significantly affect injection well performance in a bioremediation project. Well clogging may occur due to massive mineral deposition on the pore walls near the wellbore. Although the size of a cleanup site can be measured in hundreds of meters or even kilometers, the underlying geochemical and hydrologic processes in individual pores eventually define where and how fast the permeability will decline. Therefore, it is important to understand these pore-scale mechanisms in order to reduce the hindering effect of pore clogging and develop efficient well treatment procedures when its injectivity drops below the minimal-tolerance level. Additionally, model-based permeability-porosity correlations for pore space evolution caused by precipitation or dissolution are needed for realistic reservoir-scale numerical simulations. To gain insights into the pore-scale mechanisms of permeability modification by mineral precipitation and dissolution, we have developed a model describing the dynamic coupling between flow and reactive transport. The model relies on a sequential approach where alternating finite-volume multicomponent reactive transport and flow simulations evaluate the local precipitation-dissolution rates, update the pore space geometry from the mass balance considerations, the re-compute the flow field on the updated sample model. Segmented three dimensional micro-tomography images of the sediment, the chemical composition of the fluid, and the mineral composition of the rock are the input data for simulations. Some model details were reported at previous AGU meetings. We validate the model against a single-pore calcite dissolution experiment. Building on this problem, we use the model to evaluate the precipitation-dissolution patterns for a range of flow rates. We then simulate multi-pore systems to qualitatively reproduce the pattern of precipitation observed in experiments. For that purpose, the model needs to account for heterogeneous nucleation and enhanced reactivity of new precipitates rather than uniform reactivity. We evaluate the impact of this pore-scale heterogeneity on the permeability evolution of multi-pore systems by comparing the output to earlier results. Averaging the local velocities and reaction rates over the computational domain yields the correlation between Darcy velocity and effective reaction rates. Tracking the pore-space and flow evolution produces porosity-permeability correlations. JF - American Geophysical Union Fall Meeting AU - Silin, D AU - Molins, S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract H31E EP - 1221 PB - American Geophysical Union, Washington, DC VL - 2011 KW - tomography KW - imagery KW - clogging KW - coupling KW - suspended materials KW - preferential flow KW - simulation KW - remediation KW - ground water KW - reactivity KW - transport KW - sediments KW - reactive transport KW - interpretation KW - chemical composition KW - three-dimensional models KW - injection KW - solutes KW - fluid flow KW - porous materials KW - bioremediation KW - porosity KW - aquifers KW - models KW - precipitation KW - water wells KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566812471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Modeling+permeability+evolution+by+precipitation+and+dissolution%3B+from+a+single-pore+channel+to+heterogeneous+multi-pore+systems&rft.au=Silin%2C+D%3BMolins%2C+S%3BAnonymous&rft.aulast=Silin&rft.aufirst=D&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://abstractsearch.agu.org/meetings/2011/FM/sections/H/sessions/H31E/abstracts/H31E-1221.html LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-10-02 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; bioremediation; chemical composition; clogging; coupling; fluid flow; ground water; imagery; injection; interpretation; models; permeability; porosity; porous materials; precipitation; preferential flow; reactive transport; reactivity; remediation; sediments; simulation; solutes; suspended materials; three-dimensional models; tomography; transport; water wells ER - TY - JOUR T1 - Progress in understanding U(IV) products of biological uranium reduction in the Old Rifle, CO aquifer AN - 1553091005; 2014-024637 AB - Microbially-driven reduction of sediment-hosted uranium is of interest for its potential applications to in-situ remediation of contaminated aquifers, as well as for its likely importance to the persistence of uranium groundwater plumes in naturally reduced aquifer zones, such as those occurring in the aquifer at the former Old Rifle, CO uranium ore processing site. Fundamental questions remain unanswered regarding the chemical and physical forms of U(IV) obtained in bioreduced aquifers, as well as the biogeochemical pathways by which these species form (i.e., enzymatic vs abiotic) and transform (i.e., how do these species change with age?). Studies performed under bona-fide field conditions are necessary for exploring these subjects because biogeochemical conditions that occur in the field, variable in time and space, are difficult to replicate in the laboratory. The relatively low U(IV) sediment concentrations, i.e., < 10 ppm, that occur in many contaminated aquifers present a challenge to the use of most spectroscopy and microscopy techniques that require 10-fold or higher uranium loadings than present in sediments. We have developed an in-situ column technique to study U(IV) species and evolving microbial communities in the Old Rifle aquifer and to correlate them with changes in trace and major ion groundwater composition during biostimulation treatments. Sediments were examined using x-ray and electron microscopy, x-ray absorption spectroscopy (XAS), and chemical extractions. XAS analysis showed that U(IV) occurred predominantly or exclusively as monomeric U(IV) complexes coordinated to oxo (or similar N/C) neighbors, and is associated with biomass or Fe sulfides. The presence of biomass-associated U(IV) after relatively short uranium reduction intervals implies an important role of direct enzymatic pathways under Fe-reducing conditions or requires that Fe(II)-reduced U(IV) can bind to biomass. Sediment-hosted monomeric U(IV) complexes partially transformed into uraninite in the aquifer over a subsequent 12 month period. This work establishes the importance of monomeric U(IV) complexes in subsurface sediments at the Old Rifle site. These experiments also establish that U(IV) species are dynamic in aquifers and can undergo non-oxidative transformation reactions. These new results have important implications for uranium reactive transport models, remediation technologies, and understanding natural uranium reduction in aquifers. JF - American Geophysical Union Fall Meeting AU - Bargar, J AU - Williams, K H AU - Campbell, K M AU - Stubbs, J AU - Suvorova, E AU - Lezama-Pacheco, J S AU - Alessi, D AU - Stylo, M AU - Handley, K M AU - Bernier-Latmani, R AU - Cerrato, J AU - Giammar, D AU - Davis, J A AU - Fox, P M AU - Long, P E AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract B43H EP - 06 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - solute transport KW - Garfield County Colorado KW - X-ray diffraction data KW - isotopes KW - biomass KW - environmental analysis KW - remediation KW - ground water KW - Rifle Colorado KW - radioactive isotopes KW - chemical reactions KW - transport KW - spectra KW - reduction KW - water pollution KW - in situ KW - pollutants KW - biochemistry KW - Old Rifle Colorado KW - pollution KW - electron microscopy data KW - bioremediation KW - hydrochemistry KW - aquifers KW - models KW - biogenic processes KW - EXAFS data KW - Colorado KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553091005?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Progress+in+understanding+U%28IV%29+products+of+biological+uranium+reduction+in+the+Old+Rifle%2C+CO+aquifer&rft.au=Bargar%2C+J%3BWilliams%2C+K+H%3BCampbell%2C+K+M%3BStubbs%2C+J%3BSuvorova%2C+E%3BLezama-Pacheco%2C+J+S%3BAlessi%2C+D%3BStylo%2C+M%3BHandley%2C+K+M%3BBernier-Latmani%2C+R%3BCerrato%2C+J%3BGiammar%2C+D%3BDavis%2C+J+A%3BFox%2C+P+M%3BLong%2C+P+E%3BAnonymous&rft.aulast=Bargar&rft.aufirst=J&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-08-14 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - aquifers; biochemistry; biogenic processes; biomass; bioremediation; chemical reactions; Colorado; electron microscopy data; environmental analysis; EXAFS data; Garfield County Colorado; ground water; hydrochemistry; in situ; isotopes; models; Old Rifle Colorado; pollutants; pollution; radioactive isotopes; reduction; remediation; Rifle Colorado; solute transport; spectra; transport; United States; water pollution; X-ray diffraction data ER - TY - JOUR T1 - Induced micro-seismicity near an injection well at the northwest Geysers geothermal field, California AN - 1549621298; 2014-056906 AB - We investigate the temporal and spatial dependence of source parameters of micro-earthquakes (less than M3) before and during water injection at the Northwest Geysers between 2005 and 2010. Our objective is to understand the relation among injection, production and source mechanisms of micro-earthquakes. We examine a small area that surrounds an injection well (Prati 9) that extends into the deep zone. We utilize three approaches to determine the source parameters of the micro-earthquakes; the Empirical Green's Function (EGF) method (Viegas et al., 2010), NetMoment method (Hutchings 2002), and moment tensor inversion (Minson and Dreger, 2008). We first compare the source parameters of 30 earthquakes determined using the three approaches for validation purposes, and then we determine the source parameters for all the earthquakes located within a small volume around the well head before and during injection. We find a good correlation coefficient of 91% between the monthly water injection-rate and the number of induced micro-earthquakes located inside the small volume, with a zero time lag, indicating that the seismic response to water injection is less than a month time. We find the b-value in the Gutenberg-Richter law, which equates the proportion of small earthquakes to large ones, increased from 1.3 to 1.6 with the start of water injection, indicating an increase of the number of small earthquakes relative to larger earthquakes due to reservoir stimulation. Our results indicate that micro-earthquakes at the Northwest Geysers have on average stress drops (mean of 11 MPa) comparable to the ones of natural occurring tectonic earthquakes in the region (around 17 MPa). We notice that the shape of the earthquake cloud is slightly elongated in the SW-NE direction, consistent with the preferential alignment direction of micro-cracks found in anisotropic studies, indicating that slip is being facilitated in pre-existing cracks. The study of micro-seismicity is a useful tool in reservoir exploration management, as it can be used to track the release of strain and the injected fluid flow paths, and to characterize the permeability of the reservoir. The source information has implications for understanding the physics of faulting and the principal mechanisms involved in induced seismicity JF - American Geophysical Union Fall Meeting AU - Hutchings, L J AU - Viegas, G AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S42B EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - stress drops KW - statistical analysis KW - Green function KW - correlation coefficient KW - California KW - geothermal fields KW - fluid injection KW - The Geysers KW - cracks KW - moment tensors KW - microseisms KW - microearthquakes KW - induced earthquakes KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549621298?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Induced+micro-seismicity+near+an+injection+well+at+the+northwest+Geysers+geothermal+field%2C+California&rft.au=Hutchings%2C+L+J%3BViegas%2C+G%3BAnonymous&rft.aulast=Hutchings&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-07-31 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - California; correlation coefficient; cracks; earthquakes; fluid injection; geothermal fields; Green function; induced earthquakes; microearthquakes; microseisms; moment tensors; statistical analysis; stress drops; The Geysers; United States ER - TY - JOUR T1 - Three-dimensional seismic velocity structure in a high-injection region in the northwest Geysers, California, from standard and double-difference seismic tomography AN - 1549621254; 2014-056905 AB - The Northwest Geysers contains some of the highest-volume injection and production wells in the Geysers geothermal field. These wells coincide spatially with dense clusters of microseismicity with exception of a sub-region central to several injectors which has shown lower rates of seismicity over the past 10 years. This low-seismicity region is underlain by a cluster of deep seismicity extending up to 4.2 km below sea level (b.s.l.). The low-seismicity region has been imaged to 610 m resolution using passive-source 3D seismic tomography and co-location of hypocenters. The results indicate a low-velocity (2.9 km/s) anomaly that extends from the surface to approximately 1.5 km b.s.l. in both P- and S- velocity models. It lies just above and to the Northwest of the low-seismicity region. The high-injection/production region is bounded on the southeast by higher velocities (range 4.0 km/s to 5.3 km/s), although it is dominated by velocities in the 3.8 km/s range. The low-velocity feature persists over our 5-year study period from 2005 to 2010, but appears to diminish spatially in 2010. Mean velocity values vary nominally from year to year, as do the extent of high and low velocity regions, but it is yet unknown whether this effect is temporal, an artifact of topography, or related to differences in data quality during different monitoring periods. The the low-velocity feature is being confirmed and re-imaged using double-difference tomography with a node-spacing of 150 m, and the feature's evolution over time will be correlated with injection and production rates in the surrounding area. JF - American Geophysical Union Fall Meeting AU - Boyle, K L AU - Jarpe, S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S42B EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - tomography KW - three-dimensional models KW - geophysical methods KW - depth KW - seismic methods KW - California KW - geothermal fields KW - fluid injection KW - The Geysers KW - seismicity KW - microseisms KW - velocity KW - crust KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549621254?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Three-dimensional+seismic+velocity+structure+in+a+high-injection+region+in+the+northwest+Geysers%2C+California%2C+from+standard+and+double-difference+seismic+tomography&rft.au=Boyle%2C+K+L%3BJarpe%2C+S%3BAnonymous&rft.aulast=Boyle&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2014-07-31 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - California; crust; depth; fluid injection; geophysical methods; geothermal fields; microseisms; seismic methods; seismicity; The Geysers; three-dimensional models; tomography; United States; velocity ER - TY - JOUR T1 - Production and injection induced changes at The Geysers geothermal field, CA, USA AN - 1549621086; 2014-056877 AB - Induced seismicity related to the exploitation of geothermal fields has caused concern and objection from the public against the operation of geothermal reservoirs in close proximity to population centers. Production at the EGS sites in Basel (Switzerland) was stopped after renewed seismicity caused concern and objection from the public in the city. A planned expansion of the EGS site in Soultz-sous-foret (France) was suspended after attempts to generate increased permeability through hydrofracturing of the reservoir rock generated an increase in seismicity. As a consequence of these concerns and objections it becomes imperative to understand the differences between naturally occurring and induced events and their relationship to induced stress changes in the reservoir if sustained generation of geothermal energy is the goal. We will address seismicity trends at The Geysers Geothermal Reservoir, CA USA, to understand the role of historical seismicity associated with past injection of water and/or production of steam. The paper will present results of time-lapse tomography to evaluate and quantify temporal changes of the physical parameters in the reservoir. Seismic data collected by the Lawrence Berkeley National Lab (LBNL) seismic network from 2003 through present, were analyzed to delineate regions where compressional and shear-wave velocities indicate changes in reservoir properties. JF - American Geophysical Union Fall Meeting AU - Gritto, R AU - Jarpe, S AU - Boyle, K L AU - Hutchings, L J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S41C EP - 2207 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - body waves KW - injection KW - elastic waves KW - California KW - geothermal fields KW - The Geysers KW - seismicity KW - seismic risk KW - velocity KW - reservoir properties KW - seismic waves KW - induced earthquakes KW - earthquakes KW - S-waves KW - baseline studies KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549621086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Production+and+injection+induced+changes+at+The+Geysers+geothermal+field%2C+CA%2C+USA&rft.au=Gritto%2C+R%3BJarpe%2C+S%3BBoyle%2C+K+L%3BHutchings%2C+L+J%3BAnonymous&rft.aulast=Gritto&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-07-31 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - baseline studies; body waves; California; earthquakes; elastic waves; geothermal fields; induced earthquakes; injection; reservoir properties; S-waves; seismic risk; seismic waves; seismicity; The Geysers; United States; velocity ER - TY - JOUR T1 - Near-real time, high resolution reservoir monitoring and modeling with micro-earthquake data AN - 1549620134; 2014-056881 AB - We present a micro-earthquake recording and automated processing system along with a methodology to provide near-real time, high resolution reservoir monitoring and modeling. An interactive program for testing micro-earthquake network designs helps identify configurations for optimum accuracy and resolution. We select the Northwest Geysers, California geothermal field to showcase the usefulness of the system. The system's inexpensive recorders requires very little time or expertise to install, and the automated processing requires merely placing flash memory chips (or telemetry) into a computer. Together these make the deployment of a large numbers of sensors feasible and thus rapid, high resolution results possible. Data are arranged into input files for tomography for Vp, Vs, Qp and Qs, and their combinations to provide for interpretation in terms of rock properties. Micro-earthquake source parameters include seismic moments, full moment tensor solutions, stress drops, source durations, radiated energy, and hypocentral locations. The methodology for interpretation is to utilize visualization with GUI analysis to cross compare tomography and source property results along with borehole or other independent information and rock physics to identify reservoir properties. The system can potentially provide information heretofore unattainable or affordable to many small companies, organizations, and countries around the world. JF - American Geophysical Union Fall Meeting AU - Hutchings, L J AU - Jarpe, S AU - Boyle, K L AU - Bonner, B P AU - Viegas, G AU - Philson, H AU - Statz-Boyer, P AU - Majer, E AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S41D EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - United States KW - tomography KW - monitoring KW - data processing KW - models KW - California KW - geothermal fields KW - The Geysers KW - reservoir properties KW - seismic networks KW - microearthquakes KW - earthquakes KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549620134?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Near-real+time%2C+high+resolution+reservoir+monitoring+and+modeling+with+micro-earthquake+data&rft.au=Hutchings%2C+L+J%3BJarpe%2C+S%3BBoyle%2C+K+L%3BBonner%2C+B+P%3BViegas%2C+G%3BPhilson%2C+H%3BStatz-Boyer%2C+P%3BMajer%2C+E%3BAnonymous&rft.aulast=Hutchings&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-07-31 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - California; data processing; earthquakes; geothermal fields; microearthquakes; models; monitoring; reservoir properties; seismic networks; The Geysers; tomography; United States ER - TY - JOUR T1 - Estimation of induced seismicity frequency-magnitude distributions related to fluid injection AN - 1549620039; 2014-056865 AB - Risks associated with induced seismicity (IS) are a significant factor in the design, permitting and operation of enhanced geothermal, geological CO (sub 2) sequestration and other fluid injection projects. The probabilistic seismic hazard analysis (PSHA) framework that is in widespread use to estimate hazard from naturally occurring earthquakes cannot be applied to IS without adaptations to address the differences between induced and natural seismicity. In particular, the normal PSHA assumption of stationary Poissonian statistics to describe seismic event occurrence are often shown to be invalid in engineered systems, as evidenced both by field observations and by theoretical considerations of the time- and space-dependent pore pressure perturbation of the reservoir. Here we discuss a physics-based approach to adapt conventional PSHA to provide the basis for IS risk analysis before the start of injection and to enable risk estimates to be progressively updated as data are gathered during and after injection. For the pre-injection analysis, earthquake frequency-magnitude distributions are generated by a numerical model that explicitly represents the known geologic structure within the vicinity of the reservoir. To illustrate the approach, we focus our analysis on CO (sub 2) sequestration applications. Using a realistic fault geometry, a von Karman spatial distribution of the coefficient of friction is generated along the fault surface using a flexible, hierarchical (quad-tree) representation. The fault geometry is then meshed and a far-field, constant strain rate boundary condition is applied to mimic regional tectonic loading. Pore pressure perturbations are derived from multi-phase simulations of CO (sub 2) plume evolution in the reservoir and used as a source function. The fault geometry, boundary conditions and pore pressure source term are then used in an alternating event-driven, explicit numerical simulation framework to generate the seismic sources and to evolve the stress distribution over the fault plane. In such an approach, the highest observable frequency is limited by the mesh element size. We evaluate parameter sensitivity by sampling multiple model realizations in order to explore reduced order models that enable fast calculation of the system response. The framework as well as the preliminary illustration of its application will be presented along with commentary on the benefits and drawbacks of the approach. This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. JF - American Geophysical Union Fall Meeting AU - Johnson, S AU - Foxall, W AU - Hutchings, L J AU - Savy, J B AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S41C EP - 2195 PB - American Geophysical Union, Washington, DC VL - 2011 KW - magnitude-frequency ratio KW - carbon sequestration KW - geologic hazards KW - strain KW - statistical analysis KW - friction KW - fluid injection KW - geothermal systems KW - seismicity KW - seismic risk KW - natural hazards KW - induced earthquakes KW - earthquakes KW - faults KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549620039?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Estimation+of+induced+seismicity+frequency-magnitude+distributions+related+to+fluid+injection&rft.au=Johnson%2C+S%3BFoxall%2C+W%3BHutchings%2C+L+J%3BSavy%2C+J+B%3BAnonymous&rft.aulast=Johnson&rft.aufirst=S&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-07-31 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon sequestration; earthquakes; faults; fluid injection; friction; geologic hazards; geothermal systems; induced earthquakes; magnitude-frequency ratio; natural hazards; seismic risk; seismicity; statistical analysis; strain ER - TY - JOUR T1 - The influence of stress transfer in naturally fractured rock on injection-induced fracture reactivation AN - 1545409706; 2014-054187 AB - Although fluid-injection experiments in fractures and faults have shown that a change in fluid pressure level can be accompanied by seismic events, no simple relationship was established between the injection rates and seismicity. Reasons for the difficulties in capturing such relationships are mainly (1) the lack of in situ experiments with accurate seismic hypocenters location and fluid-induced-poroelastic deformations monitoring, and (2) the simple Mohr-Coulomb type arguments that can hardly capture complexities of geomechanical nature. We performed a step-rate hydraulic injection experiment in a borehole drilled from an underground gallery at 250 m-depth in a naturally fractured limestone layer, to investigate the coupling relationships between induced seismicity and fracture permeability changes. A factor-of-3 increase in fracture permeability was inferred from injection data and associated with approximately 100 triggered seismic events (-5 < Mw < -3) located along fractures in the rock volume outside the injection zone. Both normal opening of the fluid-injected fracture and the associated tilt of the gallery wall, located 3 m apart from the injection, displayed partly inelastic behavior characterized by irreversible deformations (amounting to about 1/3 to 1/2 of the maximum measured deformations). Finally, using a plane-strain finite-difference numerical analysis, we showed that (1) the observed seismicity is caused by shear failure of weak zones subjected to stress transfer from the injection zone into the surrounding fractured layer, and (2) the softening of the layer's strength properties strongly influences the injected fracture slip and increase in permeability. JF - American Geophysical Union Fall Meeting AU - Guglielmi, Y AU - Cappa, F AU - Rutqvist, J AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S33A EP - 2304 PB - American Geophysical Union, Washington, DC VL - 2011 KW - limestone KW - shear stress KW - numerical analysis KW - finite difference analysis KW - stress KW - fractures KW - fluid injection KW - sedimentary rocks KW - seismicity KW - naturally fractured reservoirs KW - focus KW - seismic networks KW - carbonate rocks KW - earthquakes KW - permeability KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1545409706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=The+influence+of+stress+transfer+in+naturally+fractured+rock+on+injection-induced+fracture+reactivation&rft.au=Guglielmi%2C+Y%3BCappa%2C+F%3BRutqvist%2C+J%3BAnonymous&rft.aulast=Guglielmi&rft.aufirst=Y&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-07-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbonate rocks; earthquakes; finite difference analysis; fluid injection; focus; fractures; limestone; naturally fractured reservoirs; numerical analysis; permeability; sedimentary rocks; seismic networks; seismicity; shear stress; stress ER - TY - JOUR T1 - Temporal velocity variations beneath the Coso geothermal field observed using seismic double difference tomography of compressional and shear wave arrival times AN - 1545409549; 2014-054200 AB - Microseismic imaging can be an important tool for characterizing geothermal reservoirs. Since microseismic sources occur more or less continuously due to the operations of a geothermal plant and the naturally occurring background seismicity, passive seismic monitoring is well suited for quantifying the temporal variations in reservoir properties that occur within the geothermal reservoir during production. In this study we will use microseismic data recorded between 1996 and 2008 to investigate the temporal variations in seismic velocity below the Coso geothermal field in California. In this study we will apply the double difference tomography method to simultaneously locate a suite of microseismic events and determine the compressional and shear wave velocity as well as their ratio. The double-difference method uses both absolute and relative arrival times of earthquakes measured at the same station, which allows a more precise determination of the relative locations of earthquakes. In particular, we apply a cross-correlation technique to improve the measurement of relative traveltimes. The large number of microearthquakes observed between 1996 and 2008 allows us to characterize subsurface velocity and to investigate changes in velocity that accompany production from the geothermal reservoir. JF - American Geophysical Union Fall Meeting AU - Seher, T AU - Zhang, H AU - Fehler, M C AU - Newman, G A AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract S33B EP - 04 PB - American Geophysical Union, Washington, DC VL - 2011 KW - velocity analysis KW - United States KW - tomography KW - P-waves KW - body waves KW - imagery KW - monitoring KW - microseismic methods KW - Coso Hot Springs KGRA KW - geophysical methods KW - elastic waves KW - seismic methods KW - California KW - geothermal fields KW - Inyo County California KW - geothermal reservoirs KW - seismicity KW - velocity KW - seismic waves KW - S-waves KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1545409549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Temporal+velocity+variations+beneath+the+Coso+geothermal+field+observed+using+seismic+double+difference+tomography+of+compressional+and+shear+wave+arrival+times&rft.au=Seher%2C+T%3BZhang%2C+H%3BFehler%2C+M+C%3BNewman%2C+G+A%3BAnonymous&rft.aulast=Seher&rft.aufirst=T&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-07-17 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - body waves; California; Coso Hot Springs KGRA; elastic waves; geophysical methods; geothermal fields; geothermal reservoirs; imagery; Inyo County California; microseismic methods; monitoring; P-waves; S-waves; seismic methods; seismic waves; seismicity; tomography; United States; velocity; velocity analysis ER - TY - JOUR T1 - Homogenization of electromagnetic and seismic wavefields for joint inverse modeling AN - 1492586086; 2014-005080 AB - A significant obstacle in developing a robust joint imaging technology exploiting seismic and electromagnetic (EM) wave fields is the resolution at which these different geophysical measurements sense the subsurface. Imaging of seismic reflection data is an order of magnitude finer in resolution and scale compared to images produced with EM data. A consistent joint image of the subsurface geophysical attributes (velocity, electrical conductivity) requires/demands the different geophysical data types be similar in their resolution of the subsurface. The superior resolution of seismic data results from the fact that the energy propagates as a wave, while propagation of EM energy is diffusive and attenuates with distance. On the other hand, the complexity of the seismic wave field can be a significant problem due to high reflectivity of the subsurface and the generation of multiple scattering events. While seismic wave fields have been very useful in mapping the subsurface for energy resources, too much scattering and too many reflections can lead to difficulties in imaging and interpreting seismic data. To overcome these obstacles a formulation for joint imaging of seismic and EM wave fields is introduced, where each data type is matched in resolution. In order to accomplish this, seismic data are first transformed into the Laplace-Fourier Domain, which changes the modeling of the seismic wave field from wave propagation to diffusion. Though high frequency information (reflectivity) is lost with this transformation, several benefits follow: (1) seismic and EM data can be easily matched in resolution, governed by the same physics of diffusion, (2) standard least squares inversion works well with diffusive type problems including both transformed seismic and EM, (3) joint imaging of seismic and EM data may produce better starting velocity models critical for successful reverse time migration or full waveform imaging of seismic data (non transformed) and (4) possibilities to image across multiple scale lengths, incorporating different types of geophysical data and attributes in the process. Important numerical details of 3D seismic wave field simulation in the Laplace-Fourier domain for both acoustic and elastic cases will also be discussed. JF - American Geophysical Union Fall Meeting AU - Newman, G A AU - Commer, M AU - Petrov, P AU - Um, E S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract GP34A EP - 02 PB - American Geophysical Union, Washington, DC VL - 2011 KW - reflection KW - homogenization KW - statistical analysis KW - geophysical methods KW - data processing KW - inverse problem KW - elastic waves KW - wave fields KW - Laplace transformations KW - seismic methods KW - least-squares analysis KW - models KW - Fourier analysis KW - electromagnetic methods KW - seismic waves KW - electromagnetic field KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492586086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Homogenization+of+electromagnetic+and+seismic+wavefields+for+joint+inverse+modeling&rft.au=Newman%2C+G+A%3BCommer%2C+M%3BPetrov%2C+P%3BUm%2C+E+S%3BAnonymous&rft.aulast=Newman&rft.aufirst=G&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-01-30 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - data processing; elastic waves; electromagnetic field; electromagnetic methods; Fourier analysis; geophysical methods; homogenization; inverse problem; Laplace transformations; least-squares analysis; models; reflection; seismic methods; seismic waves; statistical analysis; wave fields ER - TY - JOUR T1 - Microscopic framework for modeling the co-dependence of calcite growth kinetics and impurity uptake AN - 1316426407; 638271-41 AB - Calcite precipitation in the presence of impurities exhibits a wide variety of behaviors from a classical exponential decrease in growth rate (i.e. phosphate inhibition) to a strongly nonlinear decrease in growth rate (i.e. growth inhibition by strontium) with increasing impurity concentration. If the specific chemical behavior of the impurity is accounted for, these diverse growth rate behaviors may be modeled using modified kink creation-propagation-collision (CPC) theory. Impurities may be divided into two distinct categories: those that remain on the mineral surface, and those that incorporate into the mineral bulk. Trace elements such as strontium and magnesium fall into the latter category, as they partition into calcite as the mineral grows, while large molecules such as poly-aspartate and phosphate are too large to fit into the calcite lattice. Using a modified kink CPC model, specific adsorption of impurity molecules to kink sites can be shown to cause an exponential decline in precipitation rate provided the impurity cannot be appreciably incorporated into the mineral. If the impurity is assumed to assimilate into the mineral at a slightly different rate than the constituent ions (i.e. Ca (super 2+) and CO (sub 3) (super 2-) ), and if the increased solubility of the trace element-calcite solid solution is accounted for, both the linear decrease in growth rate caused by magnesium uptake and Mg partitioning behavior may be modeled. The partitioning behavior of strontium as well as its effect on calcite precipitation rate has long been difficult to model accurately. If strontium uptake is assumed to increase the solubility of calcite as in the case of magnesium, and if the attachment of strontium ions directly along the step edge is accounted for, both the partitioning behavior of Sr and the resulting calcite growth rate behavior may be modeled. Because the solvation free energy of Sr (super 2+) is less than that of Ca (super 2+) , it is reasonable to assume that strontium ions can attach via 1D nucleation directly to the calcite step edge with greater frequency than calcium. Only by invoking this 1D nucleation mechanism can the increased partitioning of strontium into calcite with increasing growth rate be explained. The CPC model elucidates the microscopic mechanisms underlying the observed growth rate dependence of trace element partitioning, and provides for the first time a framework for modeling the impurity dependence of mineral precipitation rates for a wide array of chemical impurities. JF - American Geophysical Union Fall Meeting AU - Nielsen, L C AU - DePaolo, D J AU - DeYoreo, J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP41A EP - 1725 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316426407?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Microscopic+framework+for+modeling+the+co-dependence+of+calcite+growth+kinetics+and+impurity+uptake&rft.au=Nielsen%2C+L+C%3BDePaolo%2C+D+J%3BDeYoreo%2C+J&rft.aulast=Nielsen&rft.aufirst=L&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Mapping proxy sensitivity: A new technique for compositional analysis of cultured biominerals and inorganically precipitated materials AN - 1316424072; 638271-49 AB - Mineral composition is controlled by a host of environmental factors during precipitation. To build accurate paleo-reconstructions we need to separate the impact of each parameter on proxy behavior and use these data to build a chemical-scale understanding of mineral growth. Biomineral culture and inorganic precipitation experiments, where growth parameters can be manipulated independently, are uniquely suited to calibrate proxies and probe mechanism. Culture and precipitation experiments often involve overgrowth of an initial material. For example, seed crystals are used to control mineralogy and avoid nucleation during inorganic precipitation, while culture experiments in marine organisms typically start with wild specimens. New growth corresponding to the experimental conditions must be resolved from the initial material. Separation is typically achieved using microanalysis, skeletal dissection, or estimates of the initial mass and composition. Each approach imposes limits on the accuracy, precision or types of materials that can be analyzed. Slow growth rates and complicated geometries can make these techniques especially challenging when applied to biominerals. We present a method of compositional analysis for use in biological culture and inorganic growth experiments that overcomes many of these challenges. This method relies on growth in a mixed element stable isotope spike, requires neither the initial mass nor the initial composition to be known, harnesses the precision and sensitivity of bulk analysis, and applies even when it is impossible to physically identify newly grown material. Error analysis suggests this method can significantly improve the precision of metal/calcium measurements in experimentally grown material compared to current methods. Furthermore, the method can isolate different events through time, separating, for example, the impact of day and night cycles on biomineral composition. We will present metal/calcium ratios measured using the new method with living planktic foraminifera that were cultured at The Wrigley Marine Science Center on Santa Catalina Island during summer 2011 and compare our approach to other micro-analytical techniques. JF - American Geophysical Union Fall Meeting AU - Gagnon, A C AU - DePaolo, D J AU - DeYoreo, J AU - Spero, H J AU - Russell, A D Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract PP41A EP - 1733 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1316424072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Mapping+proxy+sensitivity%3A+A+new+technique+for+compositional+analysis+of+cultured+biominerals+and+inorganically+precipitated+materials&rft.au=Gagnon%2C+A+C%3BDePaolo%2C+D+J%3BDeYoreo%2C+J%3BSpero%2C+H+J%3BRussell%2C+A+D&rft.aulast=Gagnon&rft.aufirst=A&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - How relevant is chemical recalcitrance for predicting climatic effects on mineral soil carbon stocks? AN - 1282823964; 2013-015177 AB - The role of chemical recalcitrance in mediating the effect of warming on soil carbon stocks has been a focus of research efforts aimed toward the larger goal of prediction of carbon loss from soils in the 21st century. Arrhenius kinetics provides a theoretical basis for the prediction that reaction of chemically recalcitrant carbon compounds (those with higher activation energy) should be more temperature sensitive than compounds with faster turnover rates (lower activation energy). This relationship has even been integrated into models of soil carbon dynamics. However, since chemically recalcitrant compounds have, by definition, slower turnover rates, their response to warming should ultimately be far smaller than those of faster turnover compounds in terms of overall respiratory loss (Sierra 2011). Regardless of the relative temperature sensitivity of recalcitrant soil carbon, it remains an open question how important enhanced decomposition of chemically recalcitrant carbon in mineral soils is for potential feedbacks between warming and soil carbon stocks. To lend insight to this question, we present a series of incubation warming experiments with soils from two forest Free Air CO (sub 2) Enrichment (FACE) sites. Because of the distinct carbon isotope (radiocarbon free) signature of the CO (sub 2) fumigation gas, soil carbon in elevated CO (sub 2) plots has incorporated a decade of labeled carbon. By measuring the radiocarbon signature of flux, which reflects FACE label carbon in CO (sub 2) elevated plots, and the atmospheric history of radiocarbon in CO (sub 2) control plots, we attributed warming-induced increases in flux rates to soil carbon pools of different ages. Much of our knowledge about decomposition of recalcitrant compounds comes from litter decomposition, where chemical recalcitrance is the presumed control on decomposition rates. By comparing the response of litter and mineral soils to warming, we infer the role of chemical recalcitrance in mineral soils. Flux rates from both organic and mineral soils were initially stimulated by warming, but diminished in time for the organic soils, and not for mineral soils. These data suggest different long term decomposition controls on mineral soil carbon, which may be more temperature sensitive than those acting on litter carbon over the long term. In addition, the (super 14) C signature of respiration suggests an increase in loss of older carbon with warming in mineral soils, but not in organic soils. The absence of change in Delta (super 14) C respired by organic soils suggests that the change in mineral soils is likely due to a factor other than recalcitrance. While the effects of warming on chemically recalcitrant carbon may play a role in the short term response, it is not likely contributing to the long term stimulation of fluxes from mineral soils. Ultimately, to predict the response of carbon stocks to warming, we need a more detailed understanding of the processes controlling soil carbon stabilization in mineral soils. While chemical recalcitrance may play a limited role, we need to acknowledge and account for other stabilization pathways. JF - American Geophysical Union Fall Meeting AU - Hopkins, F M AU - Torn, M S AU - Trumbore, S AU - Anonymous Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract B21K EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - soils KW - climate change KW - temperature KW - geochemical cycle KW - carbon dioxide KW - mineral composition KW - carbon KW - climate effects KW - theoretical models KW - carbon cycle KW - chemical composition KW - kinetics KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1282823964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=How+relevant+is+chemical+recalcitrance+for+predicting+climatic+effects+on+mineral+soil+carbon+stocks%3F&rft.au=Hopkins%2C+F+M%3BTorn%2C+M+S%3BTrumbore%2C+S%3BAnonymous&rft.aulast=Hopkins&rft.aufirst=F&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - PubXState - DC N1 - Last updated - 2014-09-18 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - carbon; carbon cycle; carbon dioxide; chemical composition; climate change; climate effects; geochemical cycle; kinetics; mineral composition; soils; temperature; theoretical models ER - TY - JOUR T1 - Prospecting for natural attenuation: Coupled geophysical-biogeochemical studies at DOE's Rifle IFRC site AN - 1008851877; 638157-60 AB - Research activities at the Rifle Integrated Field Research Challenge (IFRC) site in Rifle, Colorado (USA) are designed to integrate geochemical, biological, and hydrological studies to enhance our understanding of subsurface uranium mobility. While much of the research activities at the site have focused on stimulating subsurface microbial activity through acetate amendment, there is growing interest in the role that natural biogeochemical processes play in constraining uranium mobility in the aquifer. Such processes constitute a form of natural uranium attenuation in the subsurface and are inferred to result from elevated concentrations of natural organic matter associated with alluvial sediments. Referred to as naturally reduced zones (NRZ's), they are characterized by the presence of reduced and/or magnetic mineral phases (e.g. FeS, FeS (sub 2) , and Fe (sub 3) O (sub 4) ), elevated Fe(II), and refractory organic carbon compounds (e.g. roots, twigs, and cones). Elevated rates of microbial activity associated with NRZ's and their mineralogical makeup act to sequester uranium from groundwater at levels higher that background alluvium. Their unique composition within a matrix of relatively oxidized, low-bioactivity sediments constitutes a potential target for a variety of exploration geophysical techniques, such as induced polarization and magnetic susceptibility. Both methods have been successfully applied at the Rifle IFRC site to delineate the ubiquity and extent of NRZ's across the floodplain. Sediments recovered from drilling targets identified through the use of exploration geophysical techniques have identified elevated uranium concentrations associated with both magnetite and framboid pyrite; however, the extent to which such minerals are the direct product of in situ microbial activity remains unknown. While diverse, the microbial community composition of NRZ's suggest dominance by fermentative organisms capable of degrading lignitic carbon to low molecular weight organic compounds and molecular hydrogen, the oxidation of which may be coupled to the reductive immobilization of aqueous uranium by a variety of indigenous microorganism (e.g. Geobacter sp.). The ability to utilize geophysical techniques to assess a site's prospects for natural attenuation thus constitutes an exciting new development in the emerging field of biogeophysics. JF - American Geophysical Union Fall Meeting AU - Williams, K H AU - Kukkadapu, R K AU - Long, P E AU - Flores Orozco, A AU - Kemna, A Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract B23D EP - 01 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008851877?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Prospecting+for+natural+attenuation%3A+Coupled+geophysical-biogeochemical+studies+at+DOE%27s+Rifle+IFRC+site&rft.au=Williams%2C+K+H%3BKukkadapu%2C+R+K%3BLong%2C+P+E%3BFlores+Orozco%2C+A%3BKemna%2C+A&rft.aulast=Williams&rft.aufirst=K&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Influence of poorly crystalline metal oxides on soil organic matter stability in four eastern deciduous forest soils AN - 1008851268; 638157-117 AB - Association with mineral surfaces is suggested as one mechanism underlying the long-term stabilization of organic matter in soils. Several recent studies have demonstrated a positive correlation between short range ordered soil Fe and Al concentrations and soil OM or radiocarbon based residence time. The positive correlation between poorly crystalline Fe and Al and (super 14) C-based residence times suggests that mineral associated OM persists over much longer time scales. Suggested mechanisms include encapsulation within iron oxide microaggregate structures or adsorption to highly reactive metal oxide mineral surfaces both of which have been shown to reduce the bioavailabilty of toxicant species in soil and aquatic environments. We utilized radiocarbon measurements coupled with selective chemical dissolution techniques to investigate the relationship between the concentration of short range order Fe and Al oxides and the stability of soil organic matter across four deciduous forest sites in the eastern U.S.comprising three different soil orders. Preliminary results indicate that SRO Fe and Al slow the turnover of SOM, with a significant linear relationship between computed radiocarbon turnover time and SRO Al and Fe overall (R (super 2) = 0.60,P=0.0001,CL=95%). Piecewise regression analysis on turnover time vs. metal oxide concentration for all four sites shows an apparent metal oxide threshold value at 5g kg (super -1) . Sites with SRO Al and Fe content below this value showed no statistically significant influence on SOM stability presumably because they are present in insufficient quantity to exert a measureable influence on the decomposability of organic inputs. Among individual sites, Harvard Forest had the highest extractable metal oxide concentrations and exhibited the strongest influence of SRO Fe and Al oxides on (super 14) C based turnover times (R (super 2) =0.91, P=0.0001,CL=95%); in this soil, poorly crystalline metal oxides are quantitatively important in stabilizing organic inputs against decomposition. Although more fundamental geochemical research will be necessary to obtain a truly mechanistic description of the specific processes responsible for organic matter stabilization in soil, an empirical approach consisting of selective chemical dissolution coupled with (super 14) C measurements does permit useful insights into the relationship between SOM stability and SRO metal oxide content for the soils under study which may in turn be used to inform model parameterizations. JF - American Geophysical Union Fall Meeting AU - Porras, R C AU - Torn, M S AU - McFarlane, K J Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract B31A EP - 0317 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008851268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Influence+of+poorly+crystalline+metal+oxides+on+soil+organic+matter+stability+in+four+eastern+deciduous+forest+soils&rft.au=Porras%2C+R+C%3BTorn%2C+M+S%3BMcFarlane%2C+K+J&rft.aulast=Porras&rft.aufirst=R&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - A radiocarbon database for improving understanding of global soil carbon dynamics: part I AN - 1008851258; 638157-113 AB - Soils play a large role in the global carbon cycle, but soil carbon stocks and dynamics remain highly uncertain. Radiocarbon (14C) observations from soils and soil respiration provide one of the only ways to infer terrestrial carbon turnover times or to test ecosystem carbon models. Although a wealth of such observations exists, they are scattered in small data sets held by individual researchers, and have not been compiled in a form easy to use for multi-site analysis, global assessments, or model testing. Here we introduce a new, global radiocarbon database that will synthesize datasets from multiple contributors to facilitate research on three broad questions: (1) What are current patterns of soil carbon dynamics, and what factors influence these patterns? (2) What is the sequestration capacity of different soils? (3) What are likely impacts of global change on the soil resource? (4) How well do models represent important carbon cycle processes, and how can they be improved? In addition to assembling data in a common format for analyses, this database will offer query capabilities and the ability to combine data with gridded global products, such as temporally resolved temperature and precipitation, NPP and GPP, and a climate-based decomposition index. Some of the near-term synthesis goals include analyzing depth profiles of 14C for across gradients in ecosystem state factors (climate, organisms, relief, parent material, time, and human influence) and soil orders; mapping surface-soil 14C values on soil temperature and moisture; and comparing soil carbon turnover times to NPP and soil carbon stocks. We are currently incorporating data from 18 contributors and six continents, with 14C measurements from soils representing nine soil orders, plant and microbial tissues, and respiration fluxes. Our intention is to grow the database and make it available to a wide community of scientists. For example, observations for different disturbance, experimental treatment, or land-use regimes are sought. This presentation will introduce modelers, other data users, and potential new data contributors to this valuable resource for evaluating terrestrial carbon dynamics and responses to global change. JF - American Geophysical Union Fall Meeting AU - Torn, M S AU - Trumbore, S AU - Smith, L J AU - Nave, L E AU - Sierra, C A AU - Harden, J W AU - Agarwal, D AU - van Ingen, C Y1 - 2011/12// PY - 2011 DA - December 2011 SP - Abstract B31A EP - 0310 PB - American Geophysical Union, Washington, DC VL - 2011 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008851258?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=A+radiocarbon+database+for+improving+understanding+of+global+soil+carbon+dynamics%3A+part+I&rft.au=Torn%2C+M+S%3BTrumbore%2C+S%3BSmith%2C+L+J%3BNave%2C+L+E%3BSierra%2C+C+A%3BHarden%2C+J+W%3BAgarwal%2C+D%3Bvan+Ingen%2C+C&rft.aulast=Torn&rft.aufirst=M&rft.date=2011-12-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - PubXState - DC N1 - Last updated - 2017-01-24 N1 - CODEN - #07548 ER - TY - JOUR T1 - Thermoelectric properties of lead chalcogenide core-shell nanostructures. AN - 905872487; 21981245 AB - We present the full thermoelectric characterization of nanostructured bulk PbTe and PbTe-PbSe samples fabricated from colloidal core-shell nanoparticles followed by spark plasma sintering. An unusually large thermopower is found in both materials, and the possibility of energy filtering as opposed to grain boundary scattering as an explanation is discussed. A decreased Debye temperature and an increased molar specific heat are in accordance with recent predictions for nanostructured materials. On the basis of these results we propose suitable core-shell material combinations for future thermoelectric materials of large electric conductivities in combination with an increased thermopower by energy filtering. JF - ACS nano AU - Scheele, Marcus AU - Oeschler, Niels AU - Veremchuk, Igor AU - Peters, Sven-Ole AU - Littig, Alexander AU - Kornowski, Andreas AU - Klinke, Christian AU - Weller, Horst AD - Institute of Physical Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany. mscheele@lbl.gov Y1 - 2011/11/22/ PY - 2011 DA - 2011 Nov 22 SP - 8541 EP - 8551 VL - 5 IS - 11 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/905872487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ACS+nano&rft.atitle=Thermoelectric+properties+of+lead+chalcogenide+core-shell+nanostructures.&rft.au=Scheele%2C+Marcus%3BOeschler%2C+Niels%3BVeremchuk%2C+Igor%3BPeters%2C+Sven-Ole%3BLittig%2C+Alexander%3BKornowski%2C+Andreas%3BKlinke%2C+Christian%3BWeller%2C+Horst&rft.aulast=Scheele&rft.aufirst=Marcus&rft.date=2011-11-22&rft.volume=5&rft.issue=11&rft.spage=8541&rft.isbn=&rft.btitle=&rft.title=ACS+nano&rft.issn=1936-086X&rft_id=info:doi/10.1021%2Fnn2017183 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2012-03-20 N1 - Date created - 2011-11-22 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1021/nn2017183 ER - TY - JOUR T1 - Effect of grassland vegetation type on the responses of hydrological processes to seasonal precipitation patterns AN - 911152144; 15937010 AB - Under future climate scenarios, rainfall patterns and species composition in California grasslands are predicted to change, potentially impacting soil-moisture dynamics and ecosystem function. The primary objective of this study was to assess the impact of altered rainfall on soil-moisture dynamics in three annual grassland vegetation types. We monitored seasonal changes in soil moisture under three different rainfall regimes in mesocosms planted with: (1) a mixed forb-grass community, (2) an Avena barbata monoculture, and (3) an Erodium botrys monoculture. We applied watering treatments in pulses, followed by dry periods that are representative of natural rainfall patterns in California annual grasslands. While rainfall was the dominant treatment, its impact on hydrological processes varied over the growing season. Surprisingly, there were only small differences in the hydrologic response among the three vegetation types. We found significant temporal variability in evapotranspiration, seepage, and soil-moisture content. Both Water Use Efficiency (WUE) and Rain Use Efficiency (RUE) decreased as annual precipitation totals increased. Results from this investigation suggest that both precipitation and vegetation have a significant interactive effect on soil-moisture dynamics. When combined, seasonal precipitation and grassland vegetation influence near-surface hydrology in ways that cannot be predicted from manipulation of a single variable. JF - Journal of Hydrology (Amsterdam) AU - Salve, Rohit AU - Sudderth, Erika A AU - St Clair, Samuel B AU - Torn, Margaret S AD - Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, United States, R_Salve@lbl.gov Y1 - 2011/11/15/ PY - 2011 DA - 2011 Nov 15 SP - 51 EP - 61 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 410 IS - 1-2 SN - 0022-1694, 0022-1694 KW - Environment Abstracts; Aqualine Abstracts; Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Rainfall KW - Ecological Effects KW - Climate and vegetation KW - Seasonal precipitation KW - Hydrology KW - Seasonal variations KW - Dry periods KW - Hydrologic analysis KW - Growing season KW - Environmental impact KW - Vegetation KW - Mesocosms KW - Ecosystem disturbance KW - Avena barbata KW - Grasslands KW - Rainfall patterns KW - Soil moisture KW - Variability KW - Water Use Efficiency KW - Climate change KW - Sulfur dioxide KW - USA, California KW - Seepages KW - water use KW - Erodium botrys KW - Temporal variations KW - Precipitation KW - Monoculture KW - seepages KW - Rain KW - Future climates KW - AQ 00001:Water Resources and Supplies KW - M3 1010:Issues in Sustainable Development KW - Q2 09171:Dynamics of lakes and rivers KW - SW 0815:Precipitation KW - ENA 15:Renewable Resources-Terrestrial KW - M2 556.13:Evaporation/Evapotranspiration (556.13) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911152144?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Effect+of+grassland+vegetation+type+on+the+responses+of+hydrological+processes+to+seasonal+precipitation+patterns&rft.au=Salve%2C+Rohit%3BSudderth%2C+Erika+A%3BSt+Clair%2C+Samuel+B%3BTorn%2C+Margaret+S&rft.aulast=Salve&rft.aufirst=Rohit&rft.date=2011-11-15&rft.volume=410&rft.issue=1-2&rft.spage=51&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2011.09.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Number of references - 1 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Temporal variations; Climate change; Environmental impact; Hydrology; Seepages; Monoculture; Seasonal variations; Ecosystem disturbance; Mesocosms; Dry periods; Climate and vegetation; Seasonal precipitation; Growing season; Rainfall patterns; Hydrologic analysis; Precipitation; Soil moisture; Future climates; water use; Grasslands; Sulfur dioxide; Rainfall; Vegetation; seepages; Variability; Water Use Efficiency; Rain; Ecological Effects; Avena barbata; Erodium botrys; USA, California DO - http://dx.doi.org/10.1016/j.jhydrol.2011.09.003 ER - TY - JOUR T1 - X-ray absorption and photoelectron spectroscopic study of the association of As(III) with nanoparticulate FeS and FeS-coated sand AN - 902369795; 15764062 AB - Iron sulfide (FeS) has been demonstrated to have a high removal capacity for arsenic (As) in reducing environments. However, FeS may be present as a coating, rather than in nanoparticulate form, in both natural and engineered systems. Frequently, the removal capacity of coatings may be different than that of nanoparticulates in batch systems. To assess the differences in removal mechanisms between nanoparticulate FeS and FeS present as a coating, the solid phase products from the reaction of As(III) with FeS-coated sand and with suspensions of nanoparticulate (NP) FeS were determined using x-ray absorption spectroscopy and x-ray photoelectron spectroscopy. In reaction with NP FeS at pH 5, As(III) was reduced to As(II) to form realgar (AsS), while at pH 9, As(III) adsorbed as an As(III) thioarsenite species. In contrast, in the FeS-coated sand system, As(III) formed the solid phase orpiment (As2S3) at pH 5, but adsorbed as an As(III) arsenite species at pH 9. These different solid reaction products are attributed to differences in FeS concentration and the resultant redox (pe) differences in the FeS-coated sand system versus suspensions of NP FeS. These results point to the importance of accounting for differences in concentration and redox when making inferences for coatings based on batch suspension studies. JF - Water Research AU - Han, Young-Soo AU - Jeong, Hoon Y AU - Demond, Avery H AU - Hayes, Kim F AD - Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, MI 48109, United States, youngsoohan@lbl.gov youngsoohan@lbl.gov youngsoohan@lbl.gov Y1 - 2011/11/01/ PY - 2011 DA - 2011 Nov 01 SP - 5727 EP - 5735 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 45 IS - 17 SN - 0043-1354, 0043-1354 KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Spectroscopy KW - Sulphides KW - X-rays KW - Absorption spectroscopy KW - Sand KW - Absorption KW - pH KW - Redox reactions KW - Arsenic KW - Suspension KW - Coating materials KW - Hydrogen Ion Concentration KW - Solids KW - iron sulfides KW - Coatings KW - AQ 00001:Water Resources and Supplies KW - P 9999:GENERAL POLLUTION KW - Q5 08502:Methods and instruments KW - SW 6010:Structures KW - ENA 21:Wildlife UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902369795?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Research&rft.atitle=X-ray+absorption+and+photoelectron+spectroscopic+study+of+the+association+of+As%28III%29+with+nanoparticulate+FeS+and+FeS-coated+sand&rft.au=Han%2C+Young-Soo%3BJeong%2C+Hoon+Y%3BDemond%2C+Avery+H%3BHayes%2C+Kim+F&rft.aulast=Han&rft.aufirst=Young-Soo&rft.date=2011-11-01&rft.volume=45&rft.issue=17&rft.spage=5727&rft.isbn=&rft.btitle=&rft.title=Water+Research&rft.issn=00431354&rft_id=info:doi/10.1016%2Fj.watres.2011.08.026 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 1 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Sulphides; Redox reactions; Arsenic; Absorption spectroscopy; Suspension; Coating materials; iron sulfides; Sand; Absorption; Spectroscopy; pH; Coatings; X-rays; Hydrogen Ion Concentration; Solids DO - http://dx.doi.org/10.1016/j.watres.2011.08.026 ER - TY - JOUR T1 - From carbon to light: a new framework for estimating greenhouse gas emissions reductions from replacing fuel-based lighting with LED systems AN - 899160772; 15690739 AB - There is considerable well-intended, yet wishful anticipation about reducing greenhouse gas emissions by replacing fuel-based lighting in the developing world with grid-independent light-emitting diode (LED) lighting systems. Most estimates gloss over important practical realities that stand to erode a genuinely significant potential. The Clean Development Mechanism (CDM) is the leading system for quantifying the benefits of such projects in developing countries and embodying them in a market-based platform for trading carbon credits. However, compliance with methodologies for highly decentralized, small-scale energy saving projects currently employed in the CDM is viewed by developers of as onerous, time-consuming, and costly. In recognition of the problem, the CDM has recently placed priority on improved methodologies for estimating carbon dioxide reductions from displacement of fuel-based lighting with energy-efficient alternatives. The over-arching aim is to maintain environmental integrity without stifling sustainable emission-reduction projects and programs in the field. This article informs this process by laying out a new framework that shifts the analytical focus from highly costly yet narrow and uncertain baseline estimations to simplified methods based primarily on deemed values that focus on replacement lighting system quality and performance characteristics. The result-many elements of which have been adopted in a new methodology approved by the CDM-is more structured and rigorous than methodologies used for LED projects in the past and yet simpler to implement, i.e., entailing fewer transaction costs. Applying this new framework, we find that some off-grid lighting technologies can be expected to yield little or no emissions reductions, while well-designed ones, using products independently certified to have high quality and durability, can generate significant reductions. Enfolding quality assurance within the proposed framework will help stem "market spoiling" currently underway in the developing world-caused by the introduction of substandard off-grid lighting products-thereby ensuring carbon reduction additionality (emissions reductions that would have not occurred in the absence of the CDM program). JF - Energy Efficiency AU - Mills, Evan AU - Jacobson, Arne AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA Y1 - 2011/11// PY - 2011 DA - Nov 2011 SP - 523 EP - 546 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 4 IS - 4 SN - 1570-646X, 1570-646X KW - Pollution Abstracts; Sustainability Science Abstracts KW - quality assurance KW - Compliance KW - Energy conservation KW - Lighting KW - Emission control KW - Clean Development Mechanism KW - Emissions KW - Greenhouse gases KW - Carbon dioxide KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899160772?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Efficiency&rft.atitle=From+carbon+to+light%3A+a+new+framework+for+estimating+greenhouse+gas+emissions+reductions+from+replacing+fuel-based+lighting+with+LED+systems&rft.au=Mills%2C+Evan%3BJacobson%2C+Arne&rft.aulast=Mills&rft.aufirst=Evan&rft.date=2011-11-01&rft.volume=4&rft.issue=4&rft.spage=523&rft.isbn=&rft.btitle=&rft.title=Energy+Efficiency&rft.issn=1570646X&rft_id=info:doi/10.1007%2Fs12053-011-9121-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - quality assurance; Compliance; Energy conservation; Emissions; Lighting; Emission control; Carbon dioxide; Greenhouse gases; Clean Development Mechanism DO - http://dx.doi.org/10.1007/s12053-011-9121-y ER - TY - JOUR T1 - Variably saturated flow and multicomponent biogeochemical reactive transport modeling of a uranium bioremediation field experiment AN - 1800390881; 2016-056860 AB - Three-dimensional, coupled variably saturated flow and biogeochemical reactive transport modeling of a 2008 in situ uranium bioremediation field experiment is used to better understand the interplay of transport and biogeochemical reactions controlling uranium behavior under pulsed acetate amendment, seasonal water table variation, spatially variable physical (hydraulic conductivity, porosity) and geochemical (reactive surface area) material properties. While the simulation of the 2008 Big Rusty acetate biostimulation field experiment in Rifle, Colorado was generally consistent with behaviors identified in previous field experiments at the Rifle IFRC site, the additional process and property detail provided several new insights. A principal conclusion from this work is that uranium bioreduction is most effective when acetate, in excess of the sulfate-reducing bacteria demand, is available to the metal-reducing bacteria. The inclusion of an initially small population of slow growing sulfate-reducing bacteria identified in proteomic analyses led to an additional source of Fe(II) from the dissolution of Fe(III) minerals promoted by biogenic sulfide. The falling water table during the experiment significantly reduced the saturated thickness of the aquifer and resulted in reactants and products, as well as unmitigated uranium, in the newly unsaturated vadose zone. High permeability sandy gravel structures resulted in locally high flow rates in the vicinity of injection wells that increased acetate dilution. In downgradient locations, these structures created preferential flow paths for acetate delivery that enhanced local zones of TEAP reactivity and subsidiary reactions. Conversely, smaller transport rates associated with the lower permeability lithofacies (e.g., fine) and vadose zone were shown to limit acetate access and reaction. Once accessed by acetate, however, these same zones limited subsequent acetate dilution and provided longer residence times that resulted in higher concentrations of TEAP reaction products when terminal electron donors and acceptors were not limiting. Finally, facies-based porosity and reactive surface area variations were shown to affect aqueous uranium concentration distributions with localized effects of the fine lithofacies having the largest impact on U(VI) surface complexation. The ability to model the comprehensive biogeochemical reaction network, and spatially and temporally variable processes, properties, and conditions controlling uranium behavior during engineered bioremediation in the naturally complex Rifle IFRC subsurface system required a subsurface simulator that could use the large memory and computational performance of a massively parallel computer. In this case, the eSTOMP simulator, operating on 128 processor cores for 12 h, was used to simulate the 110-day field experiment and 50 days of post-biostimulation behavior. Abstract Copyright (2011) Elsevier, B.V. JF - Journal of Contaminant Hydrology AU - Yabusaki, Steven B AU - Fang, Yilin AU - Williams, Kenneth H AU - Murray, Christopher J AU - Ward, Andy L AU - Dayvault, Richard D AU - Waichler, Scott R AU - Newcomer, Darrell R AU - Spane, Frank A AU - Long, Philip E Y1 - 2011/11/01/ PY - 2011 DA - 2011 Nov 01 SP - 271 EP - 290 PB - Elsevier, Amsterdam VL - 126 IS - 3-4 SN - 0169-7722, 0169-7722 KW - United States KW - solute transport KW - Garfield County Colorado KW - unsaturated zone KW - remediation KW - ground water KW - saturated zone KW - Rifle Colorado KW - reactivity KW - mitigation KW - transport KW - reduction KW - water pollution KW - esters KW - experimental studies KW - acetates KW - acid mine drainage KW - three-dimensional models KW - pollutants KW - biochemistry KW - statistical analysis KW - injection KW - pollution KW - geostatistics KW - bioremediation KW - aquifers KW - models KW - water table KW - organic compounds KW - boreholes KW - metals KW - bacteria KW - uranium KW - hydraulic conductivity KW - Colorado KW - sulfides KW - actinides KW - unconfined aquifers KW - field studies KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800390881?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Variably+saturated+flow+and+multicomponent+biogeochemical+reactive+transport+modeling+of+a+uranium+bioremediation+field+experiment&rft.au=Yabusaki%2C+Steven+B%3BFang%2C+Yilin%3BWilliams%2C+Kenneth+H%3BMurray%2C+Christopher+J%3BWard%2C+Andy+L%3BDayvault%2C+Richard+D%3BWaichler%2C+Scott+R%3BNewcomer%2C+Darrell+R%3BSpane%2C+Frank+A%3BLong%2C+Philip+E&rft.aulast=Yabusaki&rft.aufirst=Steven&rft.date=2011-11-01&rft.volume=126&rft.issue=3-4&rft.spage=271&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2011.09.002 L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 50 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2016-06-30 N1 - SubjectsTermNotLitGenreText - acetates; acid mine drainage; actinides; aquifers; bacteria; biochemistry; bioremediation; boreholes; Colorado; esters; experimental studies; field studies; Garfield County Colorado; geostatistics; ground water; hydraulic conductivity; injection; metals; mitigation; models; organic compounds; pollutants; pollution; reactivity; reduction; remediation; Rifle Colorado; saturated zone; solute transport; statistical analysis; sulfides; three-dimensional models; transport; unconfined aquifers; United States; unsaturated zone; uranium; water pollution; water table DO - http://dx.doi.org/10.1016/j.jconhyd.2011.09.002 ER - TY - JOUR T1 - Rationally Designed, Three-Dimensional Carbon Nanotube Back-Contacts for Efficient Solar Devices AN - 1770374012; 20315247 AB - Structure matters in solar-to-fuel conversion efficiency, demonstrated for TiO sub(2) coated onto designed three-dimensional (3-D) carbon nanofiber scaffolds. Performance enhancement of up to three times compared to flat films can be mostly attributed to structurally-enhanced carrier collection and photon management processes. Using 3-D templates to balance light absorption depth and carrier collection can lead to a new class of high efficiency and cheap energy conversion devices. JF - Advanced Energy Materials AU - Pint, Cary L AU - Takei, Kuniharu AU - Kapadia, Rehan AU - Zheng, Maxwell AU - Ford, Alexandra C AU - Zhang, Junjun AU - Jamshidi, Arash AU - Bardhan, Rizia AU - Urban, Jeffrey J AU - Wu, Ming AU - Ager, Joel W AU - Oye, Michael M AU - Javey, Ali AD - Department of Electrical Engineering and Computer Science, University of California, Berkeley, CA 94720 USA.Material Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA. Y1 - 2011/11// PY - 2011 DA - November 2011 SP - 1040 EP - 1045 PB - Wiley-Blackwell, Baffins Lane Chichester W. Sussex PO19 1UD United Kingdom VL - 1 IS - 6 SN - 1614-6832, 1614-6832 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); ANTE: Abstracts in New Technologies and Engineering (AN); Aerospace & High Technology Database (AH) KW - Three dimensional KW - Collection KW - Carbon nanotubes KW - Titanium dioxide KW - Photons KW - Carriers KW - Devices KW - Conversion coating KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1770374012?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advanced+Energy+Materials&rft.atitle=Rationally+Designed%2C+Three-Dimensional+Carbon+Nanotube+Back-Contacts+for+Efficient+Solar+Devices&rft.au=Pint%2C+Cary+L%3BTakei%2C+Kuniharu%3BKapadia%2C+Rehan%3BZheng%2C+Maxwell%3BFord%2C+Alexandra+C%3BZhang%2C+Junjun%3BJamshidi%2C+Arash%3BBardhan%2C+Rizia%3BUrban%2C+Jeffrey+J%3BWu%2C+Ming%3BAger%2C+Joel+W%3BOye%2C+Michael+M%3BJavey%2C+Ali&rft.aulast=Pint&rft.aufirst=Cary&rft.date=2011-11-01&rft.volume=1&rft.issue=6&rft.spage=1040&rft.isbn=&rft.btitle=&rft.title=Advanced+Energy+Materials&rft.issn=16146832&rft_id=info:doi/10.1002%2Faenm.201100436 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-03-01 N1 - Last updated - 2016-03-04 DO - http://dx.doi.org/10.1002/aenm.201100436 ER - TY - JOUR T1 - Neutron-Production Yields from 400 MeV/Nucleon Iron Stopping in Carbon, Aluminum, Copper, and Lead Targets AN - 1671256563; 16121857 AB - Double-differential neutron yields from 400 MeV/nucleon (56)Fe stopping in C, Al, Cu, and Pb targets are reported, along with Particle and Heavy Ion Transport Code System (PHITS) transport model calculations of the data. The yields were measured at 90, 120, and 160 deg in all four systems. Neutron energies were measured from 1 to 2 MeV up to a few hundred mega-electron-volts. The data augment previous measurements made by Kurosawa et al. that were reported for angles between 0 and 90 deg. The measurements for each target were made at two different target orientations, resulting in two different thicknesses of target that neutrons had to traverse before reaching the neutron detectors. The differences in the spectra between two different target orientations are due to neutron transport through the target and as such provide an interesting test of transport model calculations. The data indicate that PHITS reproduces the effects of neutron transport very well but may overestimate neutron production between energies of 10 to 50 MeV in some cases. JF - Nuclear Science and Engineering AU - Heilbronn, L AU - Zeitlin, C J AU - Iwata, Y AU - Murakami, T AU - Nakamura, T AU - Yonaif, S AU - Ronningen, R M AU - Iwase, H AD - University of Tennessee, 214 Pasqua Engineering Building Knoxville, Tennessee 37996 LHHeilbronn@LBL.gov Y1 - 2011/11// PY - 2011 DA - Nov 2011 SP - 279 EP - 289 PB - American Nuclear Society, Inc., 555 N. Kensington Ave. La Grange Park IL 60525 United States VL - 169 IS - 3 SN - 0029-5639, 0029-5639 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); Aluminium Industry Abstracts (AI) KW - Orientation KW - Mathematical models KW - Carbon KW - Transport KW - Aluminum KW - Copper KW - Spectra KW - Nucleons UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671256563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nuclear+Science+and+Engineering&rft.atitle=Neutron-Production+Yields+from+400+MeV%2FNucleon+Iron+Stopping+in+Carbon%2C+Aluminum%2C+Copper%2C+and+Lead+Targets&rft.au=Heilbronn%2C+L%3BZeitlin%2C+C+J%3BIwata%2C+Y%3BMurakami%2C+T%3BNakamura%2C+T%3BYonaif%2C+S%3BRonningen%2C+R+M%3BIwase%2C+H&rft.aulast=Heilbronn&rft.aufirst=L&rft.date=2011-11-01&rft.volume=169&rft.issue=3&rft.spage=279&rft.isbn=&rft.btitle=&rft.title=Nuclear+Science+and+Engineering&rft.issn=00295639&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-04-01 N1 - Last updated - 2015-04-09 ER - TY - JOUR T1 - Laser Ablation Molecular Isotopic Spectrometry: Strontium and its isotopes AN - 1430854024; 16241485 AB - The experimental details are reported of Laser Ablation Molecular Isotopic Spectrometry (LAMIS) and its application for performing optical isotopic analysis of solid strontium-containing samples in ambient atmospheric air at normal pressure. The LAMIS detection method is described for strontium isotopes from samples of various chemical and isotopic compositions. The results demonstrate spectrally resolved measurements of the three individual 86Sr, 87Sr, and 88Sr isotopes that are quantified using multivariate calibration of spectra. The observed isotopic shifts are consistent with those calculated theoretically. The measured spectra of diatomic oxide and halides of strontium generated in laser ablation plasmas demonstrate the isotopic resolution and capability of LAMIS. In particular, emission spectra of SrO and SrF molecular radicals provided clean and well resolved spectral signatures for the naturally occurring strontium isotopes. A possibility is discussed of using LAMIS of strontium isotopes for radiogenic age determination. JF - Spectrochimica Acta Part B Atomic Spectroscopy AU - Mao, Xianglei AU - Bol'shakov, Alexander A AU - Choi, Inhee AU - McKay, Christopher P AU - Perry, Dale L AU - Sorkhabi, Osman AU - Russo, Richard E AD - Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720, USA, rerusso@lbl.gov Y1 - 2011/11// PY - 2011 DA - Nov 2011 SP - 767 EP - 775 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 66 IS - 11-12 SN - 0584-8547, 0584-8547 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Chemical composition KW - Solids KW - Age determination KW - Spectroscopy KW - Strontium isotopes KW - Halides KW - Calibrations KW - Strontium KW - Lasers KW - Oxides KW - Ablation KW - SW 5010:Network design KW - AQ 00007:Industrial Effluents KW - Q5 08502:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1430854024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.atitle=Laser+Ablation+Molecular+Isotopic+Spectrometry%3A+Strontium+and+its+isotopes&rft.au=Mao%2C+Xianglei%3BBol%27shakov%2C+Alexander+A%3BChoi%2C+Inhee%3BMcKay%2C+Christopher+P%3BPerry%2C+Dale+L%3BSorkhabi%2C+Osman%3BRusso%2C+Richard+E&rft.aulast=Mao&rft.aufirst=Xianglei&rft.date=2011-11-01&rft.volume=66&rft.issue=11-12&rft.spage=767&rft.isbn=&rft.btitle=&rft.title=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.issn=05848547&rft_id=info:doi/10.1016%2Fj.sab.2011.12.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-09-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Chemical composition; Lasers; Age determination; Halides; Strontium isotopes; Ablation; Calibrations; Solids; Strontium; Spectroscopy; Oxides DO - http://dx.doi.org/10.1016/j.sab.2011.12.002 ER - TY - JOUR T1 - Krauklis wave in a stack of alternating fluid-elastic layers AN - 1020538691; 2012-056579 AB - The Krauklis wave is a slow dispersive wave mode that propagates in a fluid layer bounded by elastic media. In a model of alternating fluid and elastic layers, two interface waves can exist at low frequencies: The first wave propagates mostly in the elastic layer and has little dispersion, while the second wave can have strong dispersion and propagates as a Krauklis wave for some parameter combinations. Analytical conditions predict appearance of the Krauklis wave for higher frequencies and low porosities. Interface-wave velocities depend on model porosity, which potentially can be used for fracture mapping. JF - Geophysics AU - Korneev, Valeri A Y1 - 2011/11/01/ PY - 2011 DA - 2011 Nov 01 SP - N47 EP - N53 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 76 IS - 6 SN - 0016-8033, 0016-8033 KW - fractures KW - geophysical methods KW - propagation KW - algorithms KW - wave dispersion KW - porosity KW - seismic methods KW - rock mechanics KW - Krauklis waves KW - 30:Engineering geology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020538691?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Krauklis+wave+in+a+stack+of+alternating+fluid-elastic+layers&rft.au=Korneev%2C+Valeri+A&rft.aulast=Korneev&rft.aufirst=Valeri&rft.date=2011-11-01&rft.volume=76&rft.issue=6&rft.spage=N47&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2FGEO2011-0086.1 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 32 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - algorithms; fractures; geophysical methods; Krauklis waves; porosity; propagation; rock mechanics; seismic methods; wave dispersion DO - http://dx.doi.org/10.1190/GEO2011-0086.1 ER - TY - JOUR T1 - Geotechnical properties of deep oceanic sediments recovered from the hydrate occurrence regions in the Ulleung Basin, East Sea, offshore Korea AN - 1011394007; 2012-044988 AB - This study presents comprehensive geotechnical data of the natural marine sediments cored from the hydrate occurrence regions during the Ulleung Basin Gas Hydrate Expedition 1 (UBGH1), East Sea, offshore Korea in 2007. Geotechnical soil index properties of the Ulleung Basin sediments, including grain size distribution, porosity, water content, Atterberg limits, specific gravity, and specific surface area, were experimentally determined. These soil index properties were correlated to geotechnical engineering parameters (e.g., shear strength and friction angle) by using well-known empirical relationships. By performing standard consolidation tests on both undisturbed specimens (as recovered from the original core liner after hydrate dissociation) and remolded specimens, stress-dependent mechanical and hydraulic properties (e.g., compressibility and hydraulic conductivity) were measured. The experimental results provide important engineering parameters, and demonstrate the effect of hydrate presence and consequential dissociation to index properties, engineering parameters, and innate sediment structures. JF - Marine and Petroleum Geology AU - Kwon, Tae-Hyuk AU - Lee, Kang-Ryel AU - Cho, Gye-Chun AU - Lee, Joo Yong A2 - Matsumoto, Ryo A2 - Ryu, Byong-Jae A2 - Lee, Sung-Rock A2 - Lin, Saulwood A2 - Wu Shiguo A2 - Sain, Kalachand A2 - Pecher, Ingo A2 - Riedel, Michael Y1 - 2011/11// PY - 2011 DA - November 2011 SP - 1870 EP - 1883 PB - Elsevier, Oxford VL - 28 IS - 10 SN - 0264-8172, 0264-8172 KW - friction angles KW - shear strength KW - Japan Sea KW - electrical conductivity KW - Far East KW - gas hydrates KW - density KW - natural gas KW - petroleum KW - algae KW - cores KW - West Pacific KW - laboratory studies KW - size distribution KW - marine sediments KW - diatoms KW - specific surface KW - sediments KW - water content KW - Northwest Pacific KW - Asia KW - Atterberg limits KW - compressibility KW - Ulleung Basin KW - soil mechanics KW - Plantae KW - experimental studies KW - continental margin KW - grain size KW - mechanical properties KW - effects KW - Korea KW - specific gravity KW - porosity KW - physical properties KW - North Pacific KW - Pacific Ocean KW - consolidometer tests KW - hydraulic conductivity KW - SEM data KW - pore water KW - permeability KW - microfossils KW - South Korea KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394007?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Geotechnical+properties+of+deep+oceanic+sediments+recovered+from+the+hydrate+occurrence+regions+in+the+Ulleung+Basin%2C+East+Sea%2C+offshore+Korea&rft.au=Kwon%2C+Tae-Hyuk%3BLee%2C+Kang-Ryel%3BCho%2C+Gye-Chun%3BLee%2C+Joo+Yong&rft.aulast=Kwon&rft.aufirst=Tae-Hyuk&rft.date=2011-11-01&rft.volume=28&rft.issue=10&rft.spage=1870&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2011.02.003 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algae; Asia; Atterberg limits; compressibility; consolidometer tests; continental margin; cores; density; diatoms; effects; electrical conductivity; experimental studies; Far East; friction angles; gas hydrates; grain size; hydraulic conductivity; Japan Sea; Korea; laboratory studies; marine sediments; mechanical properties; microfossils; natural gas; North Pacific; Northwest Pacific; Pacific Ocean; permeability; petroleum; physical properties; Plantae; pore water; porosity; sediments; SEM data; shear strength; size distribution; soil mechanics; South Korea; specific gravity; specific surface; Ulleung Basin; water content; West Pacific DO - http://dx.doi.org/10.1016/j.marpetgeo.2011.02.003 ER - TY - CPAPER T1 - Evaluation of Modified Feedstocks for Deconstrctionability T2 - 2011 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2011) AN - 1312979946; 6079270 JF - 2011 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2011) AU - Singh, Seema Y1 - 2011/10/16/ PY - 2011 DA - 2011 Oct 16 KW - Chemical engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312979946?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2011%29&rft.atitle=Evaluation+of+Modified+Feedstocks+for+Deconstrctionability&rft.au=Singh%2C+Seema&rft.aulast=Singh&rft.aufirst=Seema&rft.date=2011-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.aiche.org/conferences/annualmeeting/meetingprogram/2011topical.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Development of Alkene Biofuels T2 - 2011 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2011) AN - 1312927055; 6079992 JF - 2011 Annual Meeting of the American Institute for Chemical Engineering (AIChE 2011) AU - Beller, Harry AU - Goh, Ee-Been Y1 - 2011/10/16/ PY - 2011 DA - 2011 Oct 16 KW - Fuel technology KW - Biofuels KW - alkenes KW - Alkenes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312927055?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2011%29&rft.atitle=Development+of+Alkene+Biofuels&rft.au=Beller%2C+Harry%3BGoh%2C+Ee-Been&rft.aulast=Beller&rft.aufirst=Harry&rft.date=2011-10-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Institute+for+Chemical+Engineering+%28AIChE+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.aiche.org/conferences/annualmeeting/meetingprogram/2011topical.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Selection of cathode contact materials for solid oxide fuel cells AN - 918049567; 15614072 AB - The goal of this work is to identify suitable cathode contact materials (CCM) to bond and electrically connect LSCF cathode to Mn sub(1.5)Co sub(1.5)O sub(4)-coated 441 stainless steel after sintering at the relatively low temperature of 900-1000 degree C. A wide variety of CCM candidates are synthesized and characterized. For each, the conductivity, coefficient of thermal expansion, sintering behavior, and tendency to react with LSCF or Mn sub(1.5)Co sub(1.5)O sub(4) are determined. From this screening, LSCF, LSCuF, LSC, and SSC are selected as the most promising candidates. These compositions are applied to LSCF and Mn sub(1.5)Co sub(1.5)O sub(4)-coated 441 stainless steel coupons and subjected to 200 h ASR testing at 800 degree C. After area-specific resistance testing, the specimens are cross-sectioned and analyzed for interdiffusion across the CCM/LSCF or CCM/Mn sub(1.5)Co sub(1.5)O sub(4) interfaces. A relatively narrow band of interdiffusion is observed. JF - Journal of Power Sources AU - Tucker, Michael C AU - Cheng, Lei AU - DeJonghe, Lutgard C Y1 - 2011/10/15/ PY - 2011 DA - 2011 Oct 15 SP - 8313 EP - 8322 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 196 IS - 20 SN - 0378-7753, 0378-7753 KW - Environment Abstracts KW - Cathode contact material KW - SOFC KW - Sintering KW - Ferritic stainless steels KW - 441 KW - Fuel technology KW - low temperature KW - Steel KW - thermal expansion KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918049567?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Selection+of+cathode+contact+materials+for+solid+oxide+fuel+cells&rft.au=Tucker%2C+Michael+C%3BCheng%2C+Lei%3BDeJonghe%2C+Lutgard+C&rft.aulast=Tucker&rft.aufirst=Michael&rft.date=2011-10-15&rft.volume=196&rft.issue=20&rft.spage=8313&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2011.06.044 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Fuel technology; low temperature; Steel; thermal expansion DO - http://dx.doi.org/10.1016/j.jpowsour.2011.06.044 ER - TY - JOUR T1 - Glass-containing composite cathode contact materials for solid oxide fuel cells AN - 1753543856; 15614010 AB - The feasibility of adding glass to conventional SOFC cathode contact materials in order to improve bonding to adjacent materials in the cell stack is assessed. A variety of candidate glass compositions are added to LSM and SSC. The important properties of the resulting composites, including conductivity, sintering behavior, coefficient of thermal expansion, and adhesion to LSCF and Mn sub(1.5)Co sub(1.5)O sub(4)-coated 441 stainless steel are used as screening parameters. Adhesion of LSM to LSCF improved from 3.9 to 5.3 MPa upon addition of SCZ-8 glass. Adhesion of LSM to coated stainless steel improved from 1.8 to 3.9 MPa upon addition of Schott GM31107 glass. The most promising cathode contact material/glass composites are coated onto Mn sub(1.5)Co sub(1.5)O sub(4)-coated 441 stainless steel substrates and subjected to area-specific resistance testing at 800 degree C. In all cases, area-specific resistance is found to be in the range 2.5-7.5 mOhm cm super(2) and therefore acceptable. Indeed, addition of glass is found to improve bonding of the cathode contact material layer without sacrificing acceptable conductivity. JF - Journal of Power Sources AU - Tucker, Michael C AU - Cheng, Lei AU - DeJonghe, Lutgard C Y1 - 2011/10/15/ PY - 2011 DA - 2011 Oct 15 SP - 8435 EP - 8443 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 196 IS - 20 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); METADEX (MD); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Fuel cell KW - SOFC KW - CCM KW - Cathode contact KW - ASR KW - Ferritic stainless steels KW - 441 KW - Cathodes KW - Composite materials KW - Stainless steels KW - Bonding KW - Contact KW - Acceptability KW - Glass KW - Adhesive bonding KW - Adhesion UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1753543856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Glass-containing+composite+cathode+contact+materials+for+solid+oxide+fuel+cells&rft.au=Tucker%2C+Michael+C%3BCheng%2C+Lei%3BDeJonghe%2C+Lutgard+C&rft.aulast=Tucker&rft.aufirst=Michael&rft.date=2011-10-15&rft.volume=196&rft.issue=20&rft.spage=8435&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2011.05.055 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jpowsour.2011.05.055 ER - TY - JOUR T1 - Bioactive glass scaffolds for bone tissue engineering: state of the art and future perspectives AN - 919955812; 15618762 AB - The repair and regeneration of large bone defects resulting from disease or trauma remains a significant clinical challenge. Bioactive glass has appealing characteristics as a scaffold material for bone tissue engineering, but the application of glass scaffolds for the repair of load-bearing bone defects is often limited by their low mechanical strength and fracture toughness. This paper provides an overview of recent developments in the fabrication and mechanical properties of bioactive glass scaffolds. The review reveals the fact that mechanical strength is not a real limiting factor in the use of bioactive glass scaffolds for bone repair, an observation not often recognized by most researchers and clinicians. Scaffolds with compressive strengths comparable to those of trabecular and cortical bones have been produced by a variety of methods. The current limitations of bioactive glass scaffolds include their low fracture toughness (low resistance to fracture) and limited mechanical reliability, which have so far received little attention. Future research directions should include the development of strong and tough bioactive glass scaffolds, and their evaluation in unloaded and load-bearing bone defects in animal models. JF - Materials Science and Engineering C: Biomimetic and Supramolecular Systems AU - Fu, Qiang AU - Saiz, Eduardo AU - Rahaman, Mohamed N AU - Tomsia, Antoni P Y1 - 2011/10/10/ PY - 2011 DA - 2011 Oct 10 SP - 1245 EP - 1256 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 31 IS - 7 SN - 0928-4931, 0928-4931 KW - Biotechnology and Bioengineering Abstracts KW - Bioactive glass KW - Bone tissue engineering KW - Scaffolds KW - Fracture toughness KW - Mechanical strength KW - Bone growth KW - Animal models KW - Fractures KW - Limiting factors KW - Tissue engineering KW - scaffolds KW - Trauma KW - Bone (trabecular) KW - Bone healing KW - Bone (cortical) KW - Reviews KW - Regeneration KW - Mechanical properties KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919955812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Materials+Science+and+Engineering+C%3A+Biomimetic+and+Supramolecular+Systems&rft.atitle=Bioactive+glass+scaffolds+for+bone+tissue+engineering%3A+state+of+the+art+and+future+perspectives&rft.au=Fu%2C+Qiang%3BSaiz%2C+Eduardo%3BRahaman%2C+Mohamed+N%3BTomsia%2C+Antoni+P&rft.aulast=Fu&rft.aufirst=Qiang&rft.date=2011-10-10&rft.volume=31&rft.issue=7&rft.spage=1245&rft.isbn=&rft.btitle=&rft.title=Materials+Science+and+Engineering+C%3A+Biomimetic+and+Supramolecular+Systems&rft.issn=09284931&rft_id=info:doi/10.1016%2Fj.msec.2011.04.022 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Fractures; Animal models; Bone growth; Limiting factors; Tissue engineering; scaffolds; Bone (trabecular); Trauma; Bone healing; Reviews; Bone (cortical); Regeneration; Mechanical properties DO - http://dx.doi.org/10.1016/j.msec.2011.04.022 ER - TY - JOUR T1 - Analytical solutions for pressure perturbation and fluid leakage through aquitards and wells in multilayered-aquifer systems AN - 902382403; 15807459 AB - Large-scale groundwater pumping or deep fluid injection in a multilayered subsurface system may generate pressure perturbation not only in the target formation(s), but also in over- and underlying units. Hydraulic communication in the vertical direction may occur via diffuse leakage through aquitards and/or via focused leakage through leaky wells. Existing analytical solutions for pressure perturbation and fluid flow in such systems consider either diffuse leakage or focused leakage, but never in combination with each other. In this study, we developed generalized analytical solutions that account for the combined effect of diffuse and focused leakage. The new solutions solve for pressure changes in a system of N aquifers with alternating leaky aquitards in response to fluid injection/extraction with any number, NI, of injection/pumping (active) wells, and passive leakage/recharge in any number, NL, of leaky wells. The equations of horizontal groundwater flow in the aquifers are coupled by the vertical flow equations in the aquitards and by the flow continuity equations in the leaky wells. The solution methodology, described in detail in this paper, involves transforming the transient flow equations into the Laplace domain; decoupling the resulting ordinary differential equations (ODEs) coupled by diffuse leakage via eigenvalue analysis; solving a system of NL N linear algebraic equations for the unknown rates of flow through leakage wells; and superposing the solution of pressure buildup/drawdown in aquifers and aquitards resulting from flow in the NI active and NL leaky wells. Verification of the new methodology was achieved by comparison with existing analytical solutions for diffuse leakage and for focused leakage, and against a numerical solution for combined diffuse and focused leakage. Application to an eight-aquifer system with leaky aquitards and one leaky well demonstrates the usefulness and efficiency of the approach, and illustrates the pressure behavior over a spectrum of leakage scenarios and parameters. JF - Water Resources Research AU - Cihan, Abdullah AU - Zhou, Quanlin AU - Birkholzer, Jens T AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA Y1 - 2011/10/07/ PY - 2011 DA - 2011 Oct 07 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 47 IS - 10 SN - 0043-1397, 0043-1397 KW - Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts; Aqualine Abstracts KW - 1805 Hydrology: Computational hydrology KW - 1828 Hydrology: Groundwater hydraulics KW - 1829 Hydrology: Groundwater hydrology KW - 1849 Hydrology: Numerical approximations and analysis KW - analytical solution KW - abandoned well KW - groundwater flow KW - leakage KW - multilayered aquifer system KW - pressure buildup KW - Aquifers KW - Groundwater Mining KW - Pressure changes KW - Water resources KW - Injection KW - Ground water KW - Pumping KW - Aquifer flow KW - Pressure KW - Leakage KW - Mathematical models KW - Aquitards KW - Groundwater flow KW - Pressure perturbations KW - Differential equations KW - Vertical mixing KW - Eigenvalues KW - Wells KW - Geohydrology KW - Groundwater KW - Water resources research KW - Groundwater Movement KW - Fluid flow KW - AQ 00007:Industrial Effluents KW - Q2 09382:Communication telemetry KW - M2 556.18:Water Management (556.18) KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902382403?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Analytical+solutions+for+pressure+perturbation+and+fluid+leakage+through+aquitards+and+wells+in+multilayered-aquifer+systems&rft.au=Cihan%2C+Abdullah%3BZhou%2C+Quanlin%3BBirkholzer%2C+Jens+T&rft.aulast=Cihan&rft.aufirst=Abdullah&rft.date=2011-10-07&rft.volume=47&rft.issue=10&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2011WR010721 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 45 N1 - Last updated - 2014-11-12 N1 - SubjectsTermNotLitGenreText - Mathematical models; Ground water; Water resources; Pumping; Pressure; Fluid flow; Vertical mixing; Differential equations; Aquifers; Eigenvalues; Groundwater flow; Aquitards; Pressure changes; Water resources research; Aquifer flow; Pressure perturbations; Leakage; Wells; Groundwater Mining; Geohydrology; Groundwater; Groundwater Movement; Injection DO - http://dx.doi.org/10.1029/2011WR010721 ER - TY - JOUR T1 - Microbial community response to addition of polylactate compounds to stimulate hexavalent chromium reduction in groundwater AN - 963848044; 16001903 AB - To evaluate the efficacy of bioimmobilization of Cr(VI) in groundwater at the Department of Energy Hanford site, we conducted a series of microcosm experiments using a range of commercial electron donors with varying degrees of lactate polymerization (polylactate). These experiments were conducted using Hanford Formation sediments (coarse sand and gravel) immersed in Hanford groundwater, which were amended with Cr(VI) and several types of lactate-based electron donors (Hydrogen Release Compound, HRC; primer-HRC, pHRC; extended release HRC) and the polylactate-cysteine form (Metal Remediation Compound, MRC). The results showed that polylactate compounds stimulated an increase in bacterial biomass and activity to a greater extent than sodium lactate when applied at equivalent carbon concentrations. At the same time, concentrations of headspace hydrogen and methane increased and correlated with changes in the microbial community structure. Enrichment of Pseudomonas spp. occurred with all lactate additions, and enrichment of sulfate-reducing Desulfosporosinus spp. occurred with almost complete sulfate reduction. The results of these experiments demonstrate that amendment with the pHRC and MRC forms result in effective removal of Cr(VI) from solution most likely by both direct (enzymatic) and indirect (microbially generated reductant) mechanisms. JF - Chemosphere AU - Brodie, Eoin L AU - Joyner, Dominique C AU - Faybishenko, Boris AU - Conrad, Mark E AU - Rios-Velazquez, Carlos AU - Malave, Josue AU - Martinez, Ramon AU - Mork, Benjamin AU - Willett, Anna AU - Koenigsberg, Steven AU - Herman, Donald J AU - Firestone, Mary K AU - Hazen, Terry C AD - Ecology Department, Earth Sciences Division, Lawrence Berkeley National Laboratory, CA, United States, elbrodie@lbl.gov Y1 - 2011/10// PY - 2011 DA - Oct 2011 SP - 660 EP - 665 PB - Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom VL - 85 IS - 4 SN - 0045-6535, 0045-6535 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Hexavalent chromium KW - Bioremediation KW - Bacteria KW - Polylactate KW - Metal reduction KW - Polymerization KW - Heavy metals KW - Sodium lactate KW - Hydrogen KW - Headspace KW - Microcosms KW - Enrichment KW - Metals KW - Sediment chemistry KW - Chromium KW - Lactate KW - Environmental impact KW - Microbial activity KW - Biomass KW - Community composition KW - Community structure KW - USA, Washington, Hanford KW - Microorganisms KW - Groundwater KW - Sulfate reduction KW - Groundwater Pollution KW - Pseudomonas KW - sulfate reduction KW - Carbon KW - Sand KW - Ground water KW - Methane KW - Sediments KW - USA, Washington, Hanford Site KW - Sodium KW - Energy KW - Sedimentary structures KW - Remediation KW - Lactic acid KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - A 01450:Environmental Pollution & Waste Treatment KW - P 2000:FRESHWATER POLLUTION KW - SW 0870:Erosion and sedimentation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/963848044?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemosphere&rft.atitle=Microbial+community+response+to+addition+of+polylactate+compounds+to+stimulate+hexavalent+chromium+reduction+in+groundwater&rft.au=Brodie%2C+Eoin+L%3BJoyner%2C+Dominique+C%3BFaybishenko%2C+Boris%3BConrad%2C+Mark+E%3BRios-Velazquez%2C+Carlos%3BMalave%2C+Josue%3BMartinez%2C+Ramon%3BMork%2C+Benjamin%3BWillett%2C+Anna%3BKoenigsberg%2C+Steven%3BHerman%2C+Donald+J%3BFirestone%2C+Mary+K%3BHazen%2C+Terry+C&rft.aulast=Brodie&rft.aufirst=Eoin&rft.date=2011-10-01&rft.volume=85&rft.issue=4&rft.spage=660&rft.isbn=&rft.btitle=&rft.title=Chemosphere&rft.issn=00456535&rft_id=info:doi/10.1016%2Fj.chemosphere.2011.07.021 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Sediment chemistry; Methane; Community composition; Chromium; Heavy metals; Sedimentary structures; Lactate; Remediation; Environmental impact; Polymerization; Sulfate reduction; Sodium lactate; Hydrogen; Biomass; Sediments; Carbon; Sand; Community structure; Energy; Headspace; Ground water; Lactic acid; Microcosms; Sodium; Metals; Bioremediation; Microbial activity; Groundwater; sulfate reduction; Microorganisms; Pseudomonas; Groundwater Pollution; Enrichment; USA, Washington, Hanford; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1016/j.chemosphere.2011.07.021 ER - TY - JOUR T1 - Relative contribution of foliar and fine root pine litter to the molecular composition of soil organic matter after in situ degradation AN - 921715952; 2012-022201 AB - The influence of litter quality on soil organic matter (SOM) stabilization rate and pathways remains unclear. We used (super 13) C/ (super 15) N labeled litter addition and Curie-point pyrolysis gas chromatography-mass spectrometry combustion-isotope ratio mass spectrometry (Py-GC-MS-C-IRMS) to explore the transformation of litter with different composition and decay rate (ponderosa pine needle vs. fine root) to SOM during 18 months in a temperate conifer forest mineral (A horizon) soil. Based on (super 13) C Py-GC-MS-C-IRMS the initial litter and bulk soil had approximately 1/3 of the total pyrolysis products identified in common. The majority was related either to carbohydrates or was non-specific in origin. In bulk soil, carbohydrates had similar levels of enrichment after needle input and fine root input, while the non-specific products were more enriched after needle input. In the humin SOM fraction (260 yr C turnover time) we found only carbohydrate and alkyl C-derived compounds and greater (super 13) C enrichment in the "carbohydrate" pool after fine root decomposition. (super 15) N Py-GC-MS-C-IRMS of humic substances showed that root litter contributed more than needle litter to the enrichment of specific protein markers during initial decomposition. We found little evidence for the selective preservation of plant compounds considered to be recalcitrant. Our findings suggest an indirect role for decomposing plant material composition, where microbial alteration of fine root litter seems to favor greater initial stabilization of microbially derived C and N in SOM fractions with long mean turnover times, such as humin, compared to needles with a faster decay rate. JF - Organic Geochemistry AU - Mambelli, Stefania AU - Bird, Jeffrey A AU - Gleixner, Gerd AU - Dawson, Todd E AU - Torn, Margaret S Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 1099 EP - 1108 PB - Elsevier VL - 42 IS - 9 SN - 0146-6380, 0146-6380 KW - United States KW - alteration KW - Spermatophyta KW - El Dorado County California KW - lipids KW - isotopes KW - mass spectra KW - needles KW - Coniferales KW - stable isotopes KW - Pinus KW - nitrogen KW - California KW - gas chromatography KW - pyrolysis KW - carbon KW - tracers KW - Blodgett Experimental Forest KW - spectra KW - geochemistry KW - soils KW - forests KW - chromatography KW - Plantae KW - Coniferae KW - roots KW - Gymnospermae KW - mass spectroscopy KW - N-15 KW - molecular structure KW - organic compounds KW - bacteria KW - Pinaceae KW - C-13 KW - spectroscopy KW - microorganisms KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921715952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Organic+Geochemistry&rft.atitle=Relative+contribution+of+foliar+and+fine+root+pine+litter+to+the+molecular+composition+of+soil+organic+matter+after+in+situ+degradation&rft.au=Mambelli%2C+Stefania%3BBird%2C+Jeffrey+A%3BGleixner%2C+Gerd%3BDawson%2C+Todd+E%3BTorn%2C+Margaret+S&rft.aulast=Mambelli&rft.aufirst=Stefania&rft.date=2011-10-01&rft.volume=42&rft.issue=9&rft.spage=1099&rft.isbn=&rft.btitle=&rft.title=Organic+Geochemistry&rft.issn=01466380&rft_id=info:doi/10.1016%2Fj.orggeochem.2011.06.008 L2 - http://www.sciencedirect.com/science/journal/01466380 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 70 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alteration; bacteria; Blodgett Experimental Forest; C-13; California; carbon; chromatography; Coniferae; Coniferales; El Dorado County California; forests; gas chromatography; geochemistry; Gymnospermae; isotopes; lipids; mass spectra; mass spectroscopy; microorganisms; molecular structure; N-15; needles; nitrogen; organic compounds; Pinaceae; Pinus; Plantae; pyrolysis; roots; soils; spectra; spectroscopy; Spermatophyta; stable isotopes; tracers; United States DO - http://dx.doi.org/10.1016/j.orggeochem.2011.06.008 ER - TY - JOUR T1 - Direct ink writing of highly porous and strong glass scaffolds for load-bearing bone defects repair and regeneration AN - 918071436; 16182600 AB - The quest for synthetic materials to repair load-bearing bone lost because of trauma, cancer, or congenital bone defects requires the development of porous, high-performance scaffolds with exceptional mechanical strength. However, the low mechanical strength of porous bioactive ceramic and glass scaffolds, compared with that of human cortical bone, has limited their use for these applications. In the present work bioactive 6P53B glass scaffolds with superior mechanical strength were fabricated using a direct ink writing technique. The rheological properties of Pluronic registered F-127 (referred to hereafter simply as F-127) hydrogel-based inks were optimized for the printing of features as fine as 30 mu m and of three-dimensional scaffolds. The mechanical strength and in vitro degradation of the scaffolds were assessed in a simulated body fluid (SBF). The sintered glass scaffolds showed a compressive strength (136 +/- 22 MPa) comparable with that of human cortical bone (100-150 MPa), while the porosity (60%) was in the range of that of trabecular bone (50-90%). The strength is ~100-times that of polymer scaffolds and 4-5-times that of ceramic and glass scaffolds with comparable porosities. Despite the strength decrease resulting from weight loss during immersion in SBF, the value (77 MPa) is still far above that of trabecular bone after 3 weeks. The ability to create both porous and strong structures opens a new avenue for fabricating scaffolds for load-bearing bone defect repair and regeneration. JF - Acta Biomaterialia AU - Fu, Qiang AU - Saiz, Eduardo AU - Tomsia, Antoni P AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, qfu@lbl.gov Y1 - 2011/10// PY - 2011 DA - Oct 2011 SP - 3547 EP - 3554 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 7 IS - 10 SN - 1742-7061, 1742-7061 KW - Biotechnology and Bioengineering Abstracts KW - Porous scaffolds KW - Strong scaffolds KW - Bone tissue engineering KW - Direct ink writing KW - Bioactive glass KW - Bone cancer KW - Printing KW - Porosity KW - Cancer KW - scaffolds KW - Bone (trabecular) KW - Trauma KW - Ceramics KW - Bone healing KW - Bone (cortical) KW - Bone loss KW - Regeneration KW - Immersion KW - Body fluids KW - Mechanical properties KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918071436?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Biomaterialia&rft.atitle=Direct+ink+writing+of+highly+porous+and+strong+glass+scaffolds+for+load-bearing+bone+defects+repair+and+regeneration&rft.au=Fu%2C+Qiang%3BSaiz%2C+Eduardo%3BTomsia%2C+Antoni+P&rft.aulast=Fu&rft.aufirst=Qiang&rft.date=2011-10-01&rft.volume=7&rft.issue=10&rft.spage=3547&rft.isbn=&rft.btitle=&rft.title=Acta+Biomaterialia&rft.issn=17427061&rft_id=info:doi/10.1016%2Fj.actbio.2011.06.030 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Bone cancer; Printing; Porosity; scaffolds; Cancer; Trauma; Bone (trabecular); Bone healing; Ceramics; Bone (cortical); Regeneration; Bone loss; Immersion; Body fluids; Mechanical properties DO - http://dx.doi.org/10.1016/j.actbio.2011.06.030 ER - TY - JOUR T1 - Benefits and costs of improved IEQ in U.S. offices AN - 911153702; 15993762 AB - Abstract This study estimates some of the benefits and costs of implementing scenarios that improve indoor environmental quality (IEQ) in the stock of U.S. office buildings. The scenarios include increasing ventilation rates when they are below 10 or 15l/s per person, adding outdoor air economizers and controls when absent, eliminating winter indoor temperatures >23 degree C, and reducing dampness and mold problems. The estimated benefits of the scenarios analyzed are substantial in magnitude, including increased work performance, reduced Sick Building Syndrome symptoms, reduced absence, and improved thermal comfort for millions of office workers. The combined potential annual economic benefit of a set of nonoverlapping scenarios is approximately $20billion. While the quantitative estimates have a high uncertainty, the opportunity for substantial benefits is clear. Some IEQ improvement measures will save energy while improving health or productivity, and implementing these measures should be the highest priority. Owners, designers, and operators of office buildings have an opportunity to improve IEQ, health, work performance, and comfort of building occupants and to obtain economic benefits by improving IEQ. These benefits can be achieved with simultaneous energy savings or with only small increases in energy costs. JF - Indoor Air AU - Fisk, W J AU - Black, D AU - Brunner, G AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2011/10// PY - 2011 DA - Oct 2011 SP - 357 EP - 367 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 21 IS - 5 SN - 0905-6947, 0905-6947 KW - Health & Safety Science Abstracts KW - USA KW - winter KW - Ventilation KW - Economics KW - Sick building syndrome KW - Energy conservation KW - Temperature KW - Environmental quality KW - Indoor environments KW - Buildings KW - H 1000:Occupational Safety and Health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911153702?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indoor+Air&rft.atitle=Benefits+and+costs+of+improved+IEQ+in+U.S.+offices&rft.au=Fisk%2C+W+J%3BBlack%2C+D%3BBrunner%2C+G&rft.aulast=Fisk&rft.aufirst=W&rft.date=2011-10-01&rft.volume=21&rft.issue=5&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Indoor+Air&rft.issn=09056947&rft_id=info:doi/10.1111%2Fj.1600-0668.2011.00719.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Document feature - figure 1 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - winter; Ventilation; Economics; Temperature; Energy conservation; Sick building syndrome; Environmental quality; Indoor environments; Buildings; USA DO - http://dx.doi.org/10.1111/j.1600-0668.2011.00719.x ER - TY - JOUR T1 - Persistence of soil organic matter as an ecosystem property AN - 907922487; 2012-001586 JF - Nature (London) AU - Schmidt, Michael W I AU - Torn, Margaret S AU - Abiven, Samuel AU - Dittmar, Thorsten AU - Guggenberger, Georg AU - Janssens, Ivan A AU - Kleber, Markus AU - Koegel-Knabner, Ingrid AU - Lehmann, Johannes AU - Manning, David A C AU - Nannipieri, Paolo AU - Rasse, Daniel P AU - Weiner, Steve AU - Trumbore, Susan E Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 49 EP - 56 PB - Macmillan Journals, London VL - 478 IS - 7367 SN - 0028-0836, 0028-0836 KW - soils KW - permafrost KW - degradation KW - biochemistry KW - stability KW - rhizosphere KW - global change KW - ecosystems KW - vegetation KW - thawing KW - geochemical cycle KW - carbon dioxide KW - fires KW - controls KW - organic compounds KW - humic substances KW - carbon KW - carbon cycle KW - geochemistry KW - microorganisms KW - global warming KW - 25:Soils KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907922487?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+%28London%29&rft.atitle=Persistence+of+soil+organic+matter+as+an+ecosystem+property&rft.au=Schmidt%2C+Michael+W+I%3BTorn%2C+Margaret+S%3BAbiven%2C+Samuel%3BDittmar%2C+Thorsten%3BGuggenberger%2C+Georg%3BJanssens%2C+Ivan+A%3BKleber%2C+Markus%3BKoegel-Knabner%2C+Ingrid%3BLehmann%2C+Johannes%3BManning%2C+David+A+C%3BNannipieri%2C+Paolo%3BRasse%2C+Daniel+P%3BWeiner%2C+Steve%3BTrumbore%2C+Susan+E&rft.aulast=Schmidt&rft.aufirst=Michael+W&rft.date=2011-10-01&rft.volume=478&rft.issue=7367&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Nature+%28London%29&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature10386 L2 - http://www.nature.com/nature/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 100 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - NATUAS N1 - SubjectsTermNotLitGenreText - biochemistry; carbon; carbon cycle; carbon dioxide; controls; degradation; ecosystems; fires; geochemical cycle; geochemistry; global change; global warming; humic substances; microorganisms; organic compounds; permafrost; rhizosphere; soils; stability; thawing; vegetation DO - http://dx.doi.org/10.1038/nature10386 ER - TY - JOUR T1 - Modeling of CO (sub 2) leakage up through an abandoned well from deep saline aquifer to shallow fresh groundwaters AN - 1803780371; 2016-060772 AB - This article presents a numerical modeling application using the code TOUGHREACT of a leakage scenario occurring during a CO (sub 2) geological storage performed in the Jurassic Dogger formation in the Paris Basin. This geological formation has been intensively used for geothermal purposes and is now under consideration as a site for the French national program of reducing greenhouse gas emissions and CO (sub 2) geological storage. Albian sandstone, situated above the Dogger limestone is a major strategic potable water aquifer; the impacts of leaking CO (sub 2) due to potential integrity failure have, therefore, to be investigated. The present case-study illustrates both the capacity and the limitations of numerical tools to address such a critical issue. The physical and chemical processes simulated in this study have been restricted to: (i) supercritical CO (sub 2) injection and storage within the Dogger reservoir aquifer, (ii) CO (sub 2) upwards migration through the leakage zone represented as a 1D vertical porous medium to simulate the cement-rock formation interface in the abandoned well, and (iii) impacts on the Albian aquifer water quality in terms of chemical composition and the mineral phases representative of the porous rock by estimating fluid-rock interactions in both aquifers. Because of CPU time and memory constraints, approximation and simplification regarding the geometry of the geological structure, the mineralogical assemblages and the injection period (up to 5 years) have been applied to the system, resulting in limited analysis of the estimated impacts. The CO (sub 2) migration rate and the quantity of CO (sub 2) arriving as free gas and dissolving, firstly in the storage water and secondly in the water of the overlying aquifer, are calculated. CO (sub 2) dissolution into the Dogger aquifer induces a pH drop from about 7.3 to 4.9 limited by calcite dissolution buffering. Glauconite present in the Albian aquifer also dissolves, causing an increase of the silicon and aluminum in solution and triggering the precipitation of kaolinite and quartz around the intrusion point. A sensitivity analysis of the leakage rate according to the location of the leaky well and the variability of the petro-physical properties of the reservoir, the leaky well zone and the Albian aquifers is also provided. Copyright 2011 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Humez, Pauline AU - Audigane, Pascal AU - Lions, Julie AU - Chiaberge, Christophe AU - Bellenfant, Gael Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 153 EP - 181 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - limestone KW - water quality KW - shallow-water environment KW - contaminant plumes KW - capillary pressure KW - oolitic limestone KW - Europe KW - ground water KW - carbon dioxide KW - France KW - sedimentary rocks KW - Paris Basin KW - leaky aquifers KW - thermodynamic properties KW - carbon sequestration KW - Western Europe KW - Jurassic KW - Dogger KW - pollution KW - fresh-water environment KW - Middle Jurassic KW - porosity KW - Mesozoic KW - abandoned water wells KW - brines KW - multiphase flow KW - carbonate rocks KW - water wells KW - underground disposal KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780371?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Modeling+of+CO+%28sub+2%29+leakage+up+through+an+abandoned+well+from+deep+saline+aquifer+to+shallow+fresh+groundwaters&rft.au=Humez%2C+Pauline%3BAudigane%2C+Pascal%3BLions%2C+Julie%3BChiaberge%2C+Christophe%3BBellenfant%2C+Gael&rft.aulast=Humez&rft.aufirst=Pauline&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9801-2 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 73 N1 - Document feature - illus. incl. 7 tables, geol. sketch maps N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - abandoned water wells; brines; capillary pressure; carbon dioxide; carbon sequestration; carbonate rocks; contaminant plumes; Dogger; Europe; France; fresh-water environment; ground water; Jurassic; leaky aquifers; limestone; Mesozoic; Middle Jurassic; multiphase flow; oolitic limestone; Paris Basin; permeability; pollution; porosity; sedimentary rocks; shallow-water environment; thermodynamic properties; underground disposal; water quality; water wells; Western Europe DO - http://dx.doi.org/10.1007/s11242-011-9801-2 ER - TY - JOUR T1 - Modeling approaches for investigating gas migration from a deep low/intermediate level waste repository; Switzerland AN - 1803780359; 2016-060770 AB - In low/intermediate-level waste (L/ILW) repositories, anaerobic corrosion of metals and degradation of organic materials produce mainly hydrogen, methane, and carbon dioxide. The Swiss reference concept for the L/ILW repository consists of parallel caverns sealed off from a single access tunnel in a deep low-permeability claystone formation. The potential buildup of excess gas pressures in the backfilled emplacement caverns was investigated in a series of two-phase flow models. In the first step, a large-scale model was constructed, implementing the 3D radial tunnel and cavern geometry with a simplified rectangular geometry. In the second step, the potential impact of the detailed geometry of the engineered barrier system (EBS) and the associated heterogeneity inside the cavern was examined using detailed models of the repository caverns, tunnel seals, access tunnel, and surrounding host rock. The simulation results from the large-scale 3D repository model show that during the early post-closure period simulated pressures can vary significantly between different parts of the repository. The simulated pressure increase in the emplacement caverns remained below the fracture pressure of the rock for realistic assumptions. Gas flow is largely limited to the EBS and the excavation disturbed zone (EDZ); thus, gas flows through and around the repository seal into the adjacent tunnel system, which is also demonstrated in the detailed repository-cavern model. The repository seal model described the detailed two-phase flow pattern of early time resaturation of the repository by water inflow from the ramp and subsequent counter flow associated with the gas flow from the repository cavern. Overall, the results of the detailed models complement and confirmed the results of the large-scale 3D model in terms of the timing of the pressure peaks and the migration of gas from the cavern into the surrounding host rock and through the repository seal. Copyright 2011 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Senger, R AU - Ewing, J AU - Zhang, K AU - Avis, J AU - Marschall, P AU - Gaus, I Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 113 EP - 133 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - solute transport KW - survey organizations KW - finite difference analysis KW - government agencies KW - aliphatic hydrocarbons KW - Europe KW - fluid dynamics KW - Switzerland KW - radioactive waste KW - carbon dioxide KW - sedimentary rocks KW - transport KW - Central Europe KW - movement KW - hydrodynamics KW - disposal barriers KW - intermediate-level waste KW - hydrology KW - corrosion KW - migration KW - two-phase models KW - methane KW - alkanes KW - porosity KW - NAGRA KW - gases KW - computer programs KW - organic compounds KW - claystone KW - metals KW - hydrogen KW - hydrocarbons KW - anaerobic environment KW - hydraulic conductivity KW - waste disposal KW - low-level waste KW - clastic rocks KW - underground disposal KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780359?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Modeling+approaches+for+investigating+gas+migration+from+a+deep+low%2Fintermediate+level+waste+repository%3B+Switzerland&rft.au=Senger%2C+R%3BEwing%2C+J%3BZhang%2C+K%3BAvis%2C+J%3BMarschall%2C+P%3BGaus%2C+I&rft.aulast=Senger&rft.aufirst=R&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=113&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9709-2 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 13 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; anaerobic environment; carbon dioxide; Central Europe; clastic rocks; claystone; computer programs; corrosion; disposal barriers; Europe; finite difference analysis; fluid dynamics; gases; government agencies; hydraulic conductivity; hydrocarbons; hydrodynamics; hydrogen; hydrology; intermediate-level waste; low-level waste; metals; methane; migration; movement; NAGRA; organic compounds; permeability; porosity; radioactive waste; sedimentary rocks; solute transport; survey organizations; Switzerland; TOUGH2; transport; two-phase models; underground disposal; waste disposal DO - http://dx.doi.org/10.1007/s11242-010-9709-2 ER - TY - JOUR T1 - Estimation of landfill gas generation rate and gas permeability field of refuse using inverse modeling AN - 1803780225; 2016-060766 AB - Landfill methane must be captured to reduce emissions of greenhouse gases; moreover it can be used as an alternative energy source. However, despite the widespread use of landfill gas (LFG) collection systems for over three decades, little information about their capture efficiency is available, because LFG generation rates usually remain unknown. Therefore, to assess the efficiency of greenhouse gas capture and to estimate the amount of fugitive emissions, LFG generation rates should be properly determined. In addition, to improve the capture efficiency of methane while minimizing air intrusion from the atmosphere, it is important to quantify gas flow patterns within landfills. In this study, a methodology to quantify methane generation rates and to estimate the gas permeability field was examined using inverse modeling. To account for the heterogeneous, but spatially correlated structure of refuse, the pilot point method involving geostatistical techniques and optimization algorithms was used. Synthetic observation data were generated from forward simulations for a pumping test and a baro-pneumatic test, and these data were used to test the inversion procedure. The inverse model was able to reproduce the spatial permeability distribution using the transient pressure changes in response to the withdrawal of LFG during the pumping test. The LFG generation rate was also successfully estimated using the data from the baro-pneumatic test with errors less than 2%. While this methodology was developed and successfully tested using synthetic data, it will be investigated in the future using field data from the bioreactor test cells at the Yolo County Central Landfill, CA. Copyright 2010 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Jung, Yoojin AU - Imhoff, Paul AU - Finsterle, Stefan Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 41 EP - 58 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - United States KW - pilot point method KW - landfills KW - aliphatic hydrocarbons KW - production KW - Yolo County California KW - environmental management KW - California KW - pump tests KW - transport KW - energy sources KW - movement KW - greenhouse effect KW - heterogeneity KW - methane KW - Yolo County central landfill KW - porous materials KW - enhanced recovery KW - alkanes KW - porosity KW - organic compounds KW - hydrocarbons KW - waste disposal KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780225?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Estimation+of+landfill+gas+generation+rate+and+gas+permeability+field+of+refuse+using+inverse+modeling&rft.au=Jung%2C+Yoojin%3BImhoff%2C+Paul%3BFinsterle%2C+Stefan&rft.aulast=Jung&rft.aufirst=Yoojin&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9659-8 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 37 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; California; energy sources; enhanced recovery; environmental management; greenhouse effect; heterogeneity; hydrocarbons; landfills; methane; movement; organic compounds; permeability; pilot point method; porosity; porous materials; production; pump tests; transport; United States; waste disposal; Yolo County California; Yolo County central landfill DO - http://dx.doi.org/10.1007/s11242-010-9659-8 ER - TY - JOUR T1 - Repository-scale modeling of the long-term hydraulic perturbation induced by gas and heat generation in a geological repository for high-and intermediate-level radioactive waste; methodology and example of application AN - 1803780072; 2016-060768 AB - The current design of a deep geological repository for high- and intermediate-level radioactive waste in France consists of a complex system of different underground structures (ANDRA, Dossier 2005 Argile, les recherches de l'Andra sur le stockage geologique des dechets radioactifs a haute activite et a. vie longue, collection les Rapports. Chatenay-Malabry, France, 2005). For a comprehensive understanding of the long-term hydraulic evolution of the entire repository, numerical non-isothermal two-phase flow and transport simulation, taking into consideration the generation, accumulation, and release of hydrogen gas and decay heat, are compulsory. However, a detailed numerical model of the entire repository system would require a tremendous computational effort and pose a laborious task with respect to the operation of the model. To handle these difficulties, we have developed an efficient method for the numerical modeling of a complete repository system and its geologic environment. The method consists of the following steps: (i) subdivision of the repository plane into a large number of "sectors" based on the position of hydraulic seals and on other geometrical considerations, (ii) exploitation of existing symmetries (inside or between sectors), (iii) adoption of the "multiplying concept", and (iv) connection of the individual sectors at the drift interfaces to form the entire repository model. Each sector is modeled as a three-dimensional (3D) block, and the entire model is computed with TOUGH2-MP. The method allows for a massive reduction in overall finite-volume elements and, at the same time, provides an adequate representation of the small-sized structures in the repository. The main characteristics of the method and its application to an entire deep geological repository system in a clay host rock are presented. Copyright 2011 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Poller, Andreas AU - Enssle, Carl Philipp AU - Mayer, Gerhard AU - Croise, Jean AU - Wendling, Jacques Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 77 EP - 94 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - survey organizations KW - government agencies KW - Europe KW - simulation KW - variations KW - radioactive waste KW - France KW - sedimentary rocks KW - transport KW - ANDRA KW - intermediate-level waste KW - hydrology KW - high-level waste KW - two-phase models KW - Western Europe KW - numerical models KW - Darcy's law KW - porosity KW - boundary conditions KW - computer programs KW - claystone KW - saturation KW - fluid pressure KW - hydrogen KW - thermomechanical properties KW - hydraulic conductivity KW - waste disposal KW - clastic rocks KW - underground disposal KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Repository-scale+modeling+of+the+long-term+hydraulic+perturbation+induced+by+gas+and+heat+generation+in+a+geological+repository+for+high-and+intermediate-level+radioactive+waste%3B+methodology+and+example+of+application&rft.au=Poller%2C+Andreas%3BEnssle%2C+Carl+Philipp%3BMayer%2C+Gerhard%3BCroise%2C+Jean%3BWendling%2C+Jacques&rft.aulast=Poller&rft.aufirst=Andreas&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9725-x L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - The online version of this article (doi:10.1007/s11242-011-9725-x) contains supplementary material, which is available to authorized users. N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - ANDRA; boundary conditions; clastic rocks; claystone; computer programs; Darcy's law; Europe; fluid pressure; France; government agencies; high-level waste; hydraulic conductivity; hydrogen; hydrology; intermediate-level waste; numerical models; permeability; porosity; radioactive waste; saturation; sedimentary rocks; simulation; survey organizations; thermomechanical properties; TOUGH2; transport; two-phase models; underground disposal; variations; waste disposal; Western Europe DO - http://dx.doi.org/10.1007/s11242-011-9725-x ER - TY - JOUR T1 - A structured approach to the derivation of effective properties for combined water and gas flow in the EDZ AN - 1803780071; 2016-060769 AB - The generation, accumulation, and release of corrosion gases is an important issue in the assessment of long-term repository performance. For repository concepts in clay-rich rock formations such as the Opalinus Clay of Northern Switzerland the transport path through the Excavation Damage Zone (EDZ) around the emplacement tunnels is of particular interest because the gas transport capacity of the host rock is limited and therefore a significant fraction of the produced gas could be released along the EDZ. This article describes the development of a structured approach to abstract complex geoscientific models of two-phase flow through the EDZ to simplified models suitable for use within a Probabilistic Safety Assessment (PSA). The approach utilizes three different models: a discrete fracture network (DFN) model of the EDZ, an equivalent heterogeneous continuum porous medium (CPM) model and a simplified CPM model suitable for use within PSA. Equivalent properties of the elements of the heterogeneous CPM models are upscaled from DFN realizations. Results from gas injection simulations with the heterogeneous CPM models are then used to derive appropriate parameters for the simplified CPM model. The modeling presented in this article represents the first step in the development of a structured methodology for treatment of gas, solute, and water flow through the EDZ. The emphasis is on methodology development, and both input data and structural models used in this study are of a generic nature and would have to be adapted to the actual conditions at a real repository site. Copyright 2011 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Lanyon, G W AU - Senger, R Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 95 EP - 112 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - solute transport KW - Europe KW - Switzerland KW - radioactive waste KW - deep-seated structures KW - sedimentary rocks KW - Opalinus Clay KW - transport KW - Central Europe KW - probability KW - disposal barriers KW - liquid phase KW - hydrology KW - migration KW - two-phase models KW - numerical models KW - Jurassic KW - statistical analysis KW - porous materials KW - excavation damage zone KW - porosity KW - Mesozoic KW - flows KW - computer programs KW - claystone KW - heterogeneous materials KW - risk assessment KW - hydraulic conductivity KW - waste disposal KW - clastic rocks KW - underground disposal KW - permeability KW - northern Switzerland KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803780071?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=A+structured+approach+to+the+derivation+of+effective+properties+for+combined+water+and+gas+flow+in+the+EDZ&rft.au=Lanyon%2C+G+W%3BSenger%2C+R&rft.aulast=Lanyon&rft.aufirst=G&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=95&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9716-y L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 18 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - Central Europe; clastic rocks; claystone; computer programs; deep-seated structures; disposal barriers; Europe; excavation damage zone; flows; heterogeneous materials; hydraulic conductivity; hydrology; Jurassic; liquid phase; Mesozoic; migration; northern Switzerland; numerical models; Opalinus Clay; permeability; porosity; porous materials; probability; radioactive waste; risk assessment; sedimentary rocks; solute transport; statistical analysis; Switzerland; TOUGH2; transport; two-phase models; underground disposal; waste disposal DO - http://dx.doi.org/10.1007/s11242-011-9716-y ER - TY - JOUR T1 - Forward and inverse bio-geochemical modeling of microbially induced calcite precipitation in half-meter column experiments AN - 1803779982; 2016-060765 AB - Microbially induced calcite precipitation (MICP) offers an alternative solution to a wide range of civil engineering problems. Laboratory tests have shown that MICP can immobilize trace metals and radionuclides through co-precipitation with calcium carbonate. MICP has also been shown to improve the undrained shear response of soils and offers potential benefits over current ground improvement techniques that may pose environmental risks and suffer from low "certainty of execution." Our objective is to identify an effective means of achieving uniform distribution of precipitate in a one-dimensional porous medium. Our approach involves column experiments and numerical modeling of MICP in both forward and inverse senses, using a simplified reaction network, with the bacterial strain Sporoscarcina pasteurii. It was found that the stop-flow injection of a urea- and calcium-rich solution produces a more uniform calcite distribution as compared to a continuous injection method, even when both methods involve flow in opposite direction to that used for bacterial cell emplacement. Inverse modeling was conducted by coupling the reactive transport code TOUGHREACT to UCODE for estimating chemical reaction rate parameters with a good match to the experimental data. It was found, however, that the choice of parameters and data was not sufficient to determine a unique solution, and our findings suggest that additional time and space-varying analytical data of aqueous species would improve the accuracy of numerical modeling of MICP. Copyright 2011 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Barkouki, T H AU - Martinez, B C AU - Mortensen, B M AU - Weathers, T S AU - de Jong, J D AU - Ginn, T R AU - Spycher, N F AU - Smith, R W AU - Fujita, Y Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 23 EP - 39 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - water quality KW - Sr-90 KW - isotopes KW - hydrolysis KW - coupling KW - aqueous solutions KW - remediation KW - ground water KW - environmental management KW - fluid injection KW - radioactive isotopes KW - urea KW - transport KW - calcium carbonate KW - heavy metals KW - alkaline earth metals KW - organic minerals KW - numerical models KW - pollutants KW - cementation KW - biochemistry KW - pollution KW - porous materials KW - mechanical properties KW - porosity KW - aquifers KW - precipitation KW - metals KW - diagenesis KW - bacteria KW - uranium KW - actinides KW - strontium KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803779982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Forward+and+inverse+bio-geochemical+modeling+of+microbially+induced+calcite+precipitation+in+half-meter+column+experiments&rft.au=Barkouki%2C+T+H%3BMartinez%2C+B+C%3BMortensen%2C+B+M%3BWeathers%2C+T+S%3Bde+Jong%2C+J+D%3BGinn%2C+T+R%3BSpycher%2C+N+F%3BSmith%2C+R+W%3BFujita%2C+Y&rft.aulast=Barkouki&rft.aufirst=T&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=23&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9804-z L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 38 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; aqueous solutions; aquifers; bacteria; biochemistry; calcium carbonate; cementation; coupling; diagenesis; environmental management; fluid injection; ground water; heavy metals; hydrolysis; isotopes; mechanical properties; metals; numerical models; organic minerals; permeability; pollutants; pollution; porosity; porous materials; precipitation; radioactive isotopes; remediation; Sr-90; strontium; transport; uranium; urea; water quality DO - http://dx.doi.org/10.1007/s11242-011-9804-z ER - TY - JOUR T1 - Effect of well orientation (vertical vs. horizontal) and well length on the injection of CO (sub 2) in deep saline aquifers AN - 1803779964; 2016-060775 AB - Simulations of CO (sub 2) injection into confined saline aquifers were conducted for both vertical and horizontal injection wells. The metrics used in quantifying the performances of different injection scenarios included changes in pressure near the injection well, mass of CO (sub 2) dissolved into brine (solubility trapping), and storage efficiency, all evaluated with an assumed injection period of 50 years. Metrics were quantified as functions of well length, well orientation, CO (sub 2) injection rate, and formation anisotropy (ratio of vertical to horizontal conductivity). When equal well lengths are compared, there is not a significant difference between the predicted performances of horizontal and vertical wells. However, the length of a horizontal well may exceed the length of a vertical well because the length of the horizontal well is not constrained to the vertical thickness of the geologic formation. Simulations show that, as the length of the horizontal well is allowed to increase, the geologic formation can receive a significantly higher CO (sub 2) injection rate without exceeding a maximum allowable pressure. This result is observed in both isotropic and anisotropic formations, and suggests that horizontal wells may be advantageous under pressure-limited conditions. However, the use of horizontal wells does not significantly improve the storage efficiency, and under strongly anisotropic conditions, a vertical well provides higher storage efficiency than a horizontal well. We conclude that horizontal wells may be preferable if the goal is to sequester a large amount of CO (sub 2) in a short period of time, but do not offer a significant advantage in terms of long-term capacity of a potential repository. Copyright 2010 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Okwen, Roland AU - Stewart, Mark AU - Cunningham, Jeffrey Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 219 EP - 232 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - hydrology KW - horizontal drilling KW - carbon sequestration KW - isotropic materials KW - confined aquifers KW - pollution KW - simulation KW - remediation KW - ground water KW - flows KW - carbon dioxide KW - aquifers KW - air pollution KW - gas injection KW - fluid injection KW - formation evaluation KW - brines KW - reservoir properties KW - directional drilling KW - hydraulic conductivity KW - drilling KW - underground disposal KW - anisotropy KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803779964?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Effect+of+well+orientation+%28vertical+vs.+horizontal%29+and+well+length+on+the+injection+of+CO+%28sub+2%29+in+deep+saline+aquifers&rft.au=Okwen%2C+Roland%3BStewart%2C+Mark%3BCunningham%2C+Jeffrey&rft.aulast=Okwen&rft.aufirst=Roland&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=219&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9686-5 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 7 tables N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - air pollution; anisotropy; aquifers; brines; carbon dioxide; carbon sequestration; confined aquifers; directional drilling; drilling; flows; fluid injection; formation evaluation; gas injection; ground water; horizontal drilling; hydraulic conductivity; hydrology; isotropic materials; pollution; remediation; reservoir properties; simulation; underground disposal DO - http://dx.doi.org/10.1007/s11242-010-9686-5 ER - TY - JOUR T1 - Modeling of rocks and cement alteration due to CO (sub 2) injection in an exploited gas reservoir AN - 1803779924; 2016-060773 AB - The injection of CO (sub 2) in exploited natural gas reservoirs as a means to reduce greenhouse gas (GHG) emissions is highly attractive as it takes place in well-known geological structures of proven integrity with respect to gas leakage. The injection of a reactive gas such as CO (sub 2) puts emphasis on the possible alteration of reservoir and caprock formations and especially of the wells' cement sheaths induced by the modification of chemical equilibria. Such studies are important for injectivity assurance, wellbore integrity, and risk assessment required for CO (sub 2) sequestration site qualification. Within a R&D project funded by Eni, we set up a numerical model to investigate the rock-cement alterations driven by the injection of CO (sub 2) into a depleted sweet natural gas pool. The simulations are performed with the TOUGHREACT simulator (Xu et al. in Comput Geosci 32:145-165, 2006) coupled to the TMGAS EOS module (Battistelli and Marcolini in Int J Greenh Gas Control 3:481-493, 2009) developed for the TOUGH2 family of reservoir simulators (Pruess et al. in TOUGH2 User's Guide, Version 2.0, 1999). On the basis of field data, the system is considered in isothermal (50 degrees C) and isobaric (128.5 bar) conditions. The effects of the evolving reservoir gas composition are taken into account before, during, and after CO (sub 2) injection. Fully water-saturated conditions were assumed for the cement sheath and caprock domains. The gas phase does not flow by advection from the reservoir into the interacting domains so that molecular diffusion in the aqueous phase is the most important process controlling the mass transport occurring in the system under study. Copyright 2011 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Geloni, Claudio AU - Giorgis, Thomas AU - Battistelli, Alfredo Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 183 EP - 200 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - solute transport KW - carbon sequestration KW - cement materials KW - pollution KW - mechanical properties KW - simulation KW - air pollution KW - computer programs KW - gas injection KW - physical properties KW - fluid injection KW - transport KW - cap rocks KW - thermomechanical properties KW - risk assessment KW - reservoir properties KW - greenhouse effect KW - thermodynamic properties KW - underground disposal KW - construction materials KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803779924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Modeling+of+rocks+and+cement+alteration+due+to+CO+%28sub+2%29+injection+in+an+exploited+gas+reservoir&rft.au=Geloni%2C+Claudio%3BGiorgis%2C+Thomas%3BBattistelli%2C+Alfredo&rft.aulast=Geloni&rft.aufirst=Claudio&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=183&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9714-0 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 51 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - air pollution; cap rocks; carbon sequestration; cement materials; computer programs; construction materials; fluid injection; gas injection; greenhouse effect; mechanical properties; physical properties; pollution; reservoir properties; risk assessment; simulation; solute transport; thermodynamic properties; thermomechanical properties; TOUGH2; transport; underground disposal DO - http://dx.doi.org/10.1007/s11242-011-9714-0 ER - TY - JOUR T1 - Model simulations of the Hengill area, southwestern Iceland AN - 1803775966; 2016-060764 AB - The Hengill Area is an important energy source for Reykjavik and surrounding area, both for electricity and district space heating. Two production fields are located in the area: Nesjavellir and Hellisheiethi. Two other potential production fields are believed to be in the area. We present a new conceptual model supported by numerical calculations for the entire Hengill Area. Calculations were performed using the TOUGH software suite. The model contains nine layers consisting of 966 elements each (total of 8,964). Geological survey data, down-hole measurements, and production histories from the fields have been used to calibrate the model. The model has been used to predict how production will affect the geothermal fields. Information gathered throughout the production history, such as drawdown and changes in enthalpy, have been used to re-evaluate the size and the production capacity of the production fields. Different production scenarios, such as different energy throughput, have been simulated. The model simulations have also been used to estimate the capacity of potential future production fields. Copyright 2010 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Gunnarsson, Gunnar AU - Arnaldsson, Andri AU - Oddsdottir, Anna Lilja Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 3 EP - 22 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - hydrology KW - Western Europe KW - southwestern Iceland KW - Europe KW - Hellisheidi Field KW - fluid dynamics KW - simulation KW - production KW - Nesjavellir Field KW - temperature KW - geothermal energy KW - computer programs KW - geothermal fields KW - Hengill KW - Reykjavik Iceland KW - formation evaluation KW - sustainable development KW - volcanoes KW - reservoir properties KW - Iceland KW - Bitra Field KW - 29A:Economic geology, geology of energy sources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803775966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Model+simulations+of+the+Hengill+area%2C+southwestern+Iceland&rft.au=Gunnarsson%2C+Gunnar%3BArnaldsson%2C+Andri%3BOddsdottir%2C+Anna+Lilja&rft.aulast=Gunnarsson&rft.aufirst=Gunnar&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9629-1 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2016-11-17 N1 - SubjectsTermNotLitGenreText - Bitra Field; computer programs; Europe; fluid dynamics; formation evaluation; geothermal energy; geothermal fields; Hellisheidi Field; Hengill; hydrology; Iceland; Nesjavellir Field; production; reservoir properties; Reykjavik Iceland; simulation; southwestern Iceland; sustainable development; temperature; TOUGH2; volcanoes; Western Europe DO - http://dx.doi.org/10.1007/s11242-010-9629-1 ER - TY - JOUR T1 - Numerical simulation studies of the long-term evolution of a CO (sub 2) plume in a saline aquifer with a sloping caprock AN - 1803775952; 2016-060771 AB - We have used the TOUGH2-MP/ECO2N code to perform numerical simulation studies of the long-term behavior of CO (sub 2) stored in an aquifer with a sloping caprock. This problem is of great practical interest, and is very challenging due to the importance of multi-scale processes. We find that the mechanism of plume advance is different from what is seen in a forced immiscible displacement, such as gas injection into a water-saturated medium. Instead of pushing the water forward, the plume advances because the vertical pressure gradients within the plume are smaller than hydrostatic, causing the groundwater column to collapse ahead of the plume tip. Increased resistance to vertical flow of aqueous phase in anisotropic media leads to reduced speed of up-dip plume advancement. Vertical equilibrium models that ignore effects of vertical flow will overpredict the speed of plume advancement. The CO (sub 2) plume becomes thinner as it advances, but the speed of advancement remains constant over the entire simulation period of up to 400 years, with migration distances of more than 80 km. Our simulations include dissolution of CO (sub 2) into the aqueous phase and associated density increase, and molecular diffusion. However, no convection develops in the aqueous phase because it is suppressed by the relatively coarse (sub-) horizontal gridding required in a regional-scale model. A first crude sub-grid-scale model was developed to represent convective enhancement of CO (sub 2) dissolution. This process is found to greatly reduce the thickness of the CO (sub 2) plume, but, for the parameters used in our simulations, does not affect the speed of plume advancement. Copyright 2011 Springer Science+Business Media B.V. and The Author(s) JF - Transport in Porous Media AU - Pruess, Karsten AU - Nordbotten, Jan Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 135 EP - 151 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - solute transport KW - contaminant plumes KW - aqueous solutions KW - simulation KW - ground water KW - carbon dioxide KW - fluid injection KW - transport KW - movement KW - saline composition KW - hydrology KW - numerical models KW - underground storage KW - pollution KW - porosity KW - aquifers KW - computer programs KW - immiscibility KW - brines KW - underground installations KW - cap rocks KW - hydraulic conductivity KW - underground disposal KW - permeability KW - 30:Engineering geology KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803775952?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Numerical+simulation+studies+of+the+long-term+evolution+of+a+CO+%28sub+2%29+plume+in+a+saline+aquifer+with+a+sloping+caprock&rft.au=Pruess%2C+Karsten%3BNordbotten%2C+Jan&rft.aulast=Pruess&rft.aufirst=Karsten&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=135&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9729-6 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 45 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - aqueous solutions; aquifers; brines; cap rocks; carbon dioxide; computer programs; contaminant plumes; fluid injection; ground water; hydraulic conductivity; hydrology; immiscibility; movement; numerical models; permeability; pollution; porosity; saline composition; simulation; solute transport; TOUGH2; transport; underground disposal; underground installations; underground storage DO - http://dx.doi.org/10.1007/s11242-011-9729-6 ER - TY - JOUR T1 - Injection of acid gas mixtures in sour oil reservoirs; analysis of near-wellbore processes with coupled modelling of well and reservoir flow AN - 1803775947; 2016-060776 AB - The reinjection of sour or acid gas mixtures is often required for the exploitation of hydrocarbon reservoirs containing remarkable amounts of acid gases (H (sub 2) S and CO (sub 2) ) to reduce the environmental impact of field exploitation and provide pressure support for enhanced oil recovery (EOR) purposes. Sour and acid gas injection in geological structures can be modelled with TMGAS, a new Equation of State (EOS) module for the TOUGH2 reservoir simulator. TMGAS can simulate the two-phase behaviour of NaCl-dominated brines in equilibrium with a non-aqueous (NA) phase, made up of inorganic gases such as CO (sub 2) and H (sub 2) S and hydrocarbons (pure as well as pseudo-components), up to the high pressures ( approximately 100 MPa) and temperatures ( approximately 200 degrees C) found in deep sedimentary basins. This study is focused on the near-wellbore processes driven by the injection of an acid gas mixture in a hypothetical high-pressure, under-saturated sour oil reservoir at a well-sector scale and at conditions for which the injected gas is fully miscible with the oil. Relevant-coupled processes are simulated, including the displacement of oil originally in place, the evaporation of connate brine, the salt concentration and consequent halite precipitation, as well as non-isothermal effects generated by the injection of the acid gas mixture at temperatures lower than initial reservoir temperature. Non-isothermal effects are studied by modelling in a coupled way wellbore and reservoir flow with a modified version of the TOUGH2 reservoir simulator. The described approach is limited to single-phase wellbore flow conditions occurring when injecting sour, acid or greenhouse gas mixtures in high-pressure geological structures. Copyright 2010 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Battistelli, Alfredo AU - Ceragioli, Paola AU - Marcolini, Marica Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 233 EP - 251 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - solute transport KW - halides KW - petroleum engineering KW - coupling KW - fluid dynamics KW - simulation KW - remediation KW - air pollution KW - transport KW - mixing KW - chlorides KW - hydrology KW - acids KW - carbon sequestration KW - Darcy's law KW - pollution KW - enhanced recovery KW - porosity KW - halite KW - flows KW - computer programs KW - gas injection KW - physical properties KW - formation evaluation KW - brines KW - multiphase flow KW - petrography KW - thermomechanical properties KW - reservoir properties KW - hydraulic conductivity KW - underground disposal KW - permeability KW - miscibility gap KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803775947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Injection+of+acid+gas+mixtures+in+sour+oil+reservoirs%3B+analysis+of+near-wellbore+processes+with+coupled+modelling+of+well+and+reservoir+flow&rft.au=Battistelli%2C+Alfredo%3BCeragioli%2C+Paola%3BMarcolini%2C+Marica&rft.aulast=Battistelli&rft.aufirst=Alfredo&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9685-6 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 40 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - acids; air pollution; brines; carbon sequestration; chlorides; computer programs; coupling; Darcy's law; enhanced recovery; flows; fluid dynamics; formation evaluation; gas injection; halides; halite; hydraulic conductivity; hydrology; miscibility gap; mixing; multiphase flow; permeability; petrography; petroleum engineering; physical properties; pollution; porosity; remediation; reservoir properties; simulation; solute transport; thermomechanical properties; TOUGH2; transport; underground disposal DO - http://dx.doi.org/10.1007/s11242-010-9685-6 ER - TY - JOUR T1 - Injection, flow, and mixing of CO (sub 2) in porous media with residual gas AN - 1803775833; 2016-060774 JF - Transport in Porous Media AU - Oldenburg, C M AU - Doughty, Christine Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 201 EP - 218 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - solute transport KW - petroleum engineering KW - capillary pressure KW - aliphatic hydrocarbons KW - simulation KW - remediation KW - transport KW - mixing KW - diffusivity KW - liquid phase KW - hydrology KW - methane KW - carbon sequestration KW - numerical models KW - gaseous phase KW - tortuosity KW - pollution KW - porous materials KW - enhanced recovery KW - alkanes KW - porosity KW - flows KW - computer programs KW - gas injection KW - organic compounds KW - saturation KW - brines KW - multiphase flow KW - hydrocarbons KW - thermomechanical properties KW - reservoir properties KW - thermal effects KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803775833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Injection%2C+flow%2C+and+mixing+of+CO+%28sub+2%29+in+porous+media+with+residual+gas&rft.au=Oldenburg%2C+C+M%3BDoughty%2C+Christine&rft.aulast=Oldenburg&rft.aufirst=C&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=201&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9645-1 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 23 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; brines; capillary pressure; carbon sequestration; computer programs; diffusivity; enhanced recovery; flows; gas injection; gaseous phase; hydrocarbons; hydrology; liquid phase; methane; mixing; multiphase flow; numerical models; organic compounds; permeability; petroleum engineering; pollution; porosity; porous materials; remediation; reservoir properties; saturation; simulation; solute transport; thermal effects; thermomechanical properties; tortuosity; TOUGH2; transport DO - http://dx.doi.org/10.1007/s11242-010-9645-1 ER - TY - JOUR T1 - Evaluation of the gas production potential of some particularly challenging types of oceanic hydrate deposits AN - 1803774924; 2016-060778 AB - We use the TOUGH+HYDRATE code to assess the production potential of some particularly challenging hydrate deposits, i.e., deposits that are characterized by any combination of the following factors: absence of confining boundaries, high thermodynamic stability, low temperatures, low formation permeability. Using high-resolution grids, we show that a new horizontal well design using thermal stimulation coupled with mild depressurization yields production rates that appear modest and insufficient for commercially viable production levels. The use of parallel horizontal wells (with the lower one providing thermal stimulation through heat addition, direct injection or circulation of warm water, and the upper one producing under a mild depressurization regime) offers tantalizing possibilities, and has the potential of allowing commercial production from a very large number of hydrate deposits that are not currently considered as production candidates if the problem of the corresponding large water production can be solved. Copyright 2011 Springer Science+Business Media B.V. and Springer Science+Business Media B.V. outside the USA JF - Transport in Porous Media AU - Moridis, George J AU - Reagan, Matthew T AU - Boyle, Katie L AU - Zhang, Keni Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 269 EP - 299 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - horizontal drilling KW - petroleum engineering KW - gas hydrates KW - thermal conductivity KW - natural gas KW - petroleum KW - simulation KW - production KW - oil wells KW - heat flow KW - hydrodynamics KW - directional drilling KW - drilling KW - thermodynamic properties KW - world ocean KW - numerical models KW - clathrates KW - computer programs KW - physical properties KW - formation evaluation KW - marine environment KW - submarine environment KW - multiphase flow KW - reservoir properties KW - permeability KW - 29A:Economic geology, geology of energy sources KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774924?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Evaluation+of+the+gas+production+potential+of+some+particularly+challenging+types+of+oceanic+hydrate+deposits&rft.au=Moridis%2C+George+J%3BReagan%2C+Matthew+T%3BBoyle%2C+Katie+L%3BZhang%2C+Keni&rft.aulast=Moridis&rft.aufirst=George&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=269&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9762-5 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - clathrates; computer programs; directional drilling; drilling; formation evaluation; gas hydrates; heat flow; horizontal drilling; hydrodynamics; marine environment; multiphase flow; natural gas; numerical models; oil wells; permeability; petroleum; petroleum engineering; physical properties; production; reservoir properties; simulation; submarine environment; thermal conductivity; thermodynamic properties; TOUGH2; world ocean DO - http://dx.doi.org/10.1007/s11242-011-9762-5 ER - TY - JOUR T1 - 2009 TOUGH symposium AN - 1803774897; 2016-060763 JF - Transport in Porous Media Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 299 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - hydrology KW - petroleum engineering KW - hydraulics KW - carbon sequestration KW - porous materials KW - convection KW - environmental management KW - computer programs KW - physical properties KW - transport KW - symposia KW - report KW - hydrodynamics KW - heat transfer KW - reservoir properties KW - hydraulic conductivity KW - underground disposal KW - 30:Engineering geology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774897?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=2009+TOUGH+symposium&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=299&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/ L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - carbon sequestration; computer programs; convection; environmental management; heat transfer; hydraulic conductivity; hydraulics; hydrodynamics; hydrology; petroleum engineering; physical properties; porous materials; report; reservoir properties; symposia; TOUGH2; transport; underground disposal ER - TY - JOUR T1 - A numerical study of microscale flow behavior in tight gas and shale gas reservoir systems AN - 1803774835; 2016-060777 AB - Various attempts have been made to model flow in shale gas systems. However, there is currently little consensus regarding the impact of molecular and Knudsen diffusion on flow behavior over time in such systems. Direct measurement or model-based estimation of matrix permeability for these "ultra-tight" reservoirs has proven unreliable. The composition of gas produced from tight gas and shale gas reservoirs varies with time for a variety of reasons. The cause of flowing gas compositional change typically cited is selective desorption of gases from the surface of the kerogen in the case of shale. However, other drivers for gas fractionation are important when pore throat dimensions are small enough. Pore throat diameters on the order of molecular mean free path lengths will create non-Darcy flow conditions, where permeability becomes a strong function of pressure. At the low permeabilities found in shale gas systems, the dusty-gas model for flow should be used, which couples diffusion to advective flow. In this study we implement the dusty-gas model into a fluid flow modeling tool based on the TOUGH+ family of codes. We examine the effects of Knudsen diffusion on gas composition in ultra-tight rock. We show that for very small average pore throat diameters, lighter gases are preferentially produced at concentrations significantly higher than in situ conditions. Furthermore, we illustrate a methodology which uses measurements of gas composition to more uniquely determine the permeability of tight reservoirs. We also describe how gas composition measurement could be used to identify flow boundaries in these reservoir systems. We discuss how new measurement techniques and data collection practices should be implemented in order to take advantage of this method. Our contributions include a new, fit-for-purpose numerical model based on the TOUGH+ code capable of characterizing transport effects including permeability adjustment and diffusion in micro- and nano-scale porous media. Copyright 2011 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Freeman, C Matt AU - Moridis, George J AU - Blasingame, T A Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 253 EP - 268 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - petroleum engineering KW - natural gas KW - source rocks KW - aliphatic hydrocarbons KW - petroleum KW - preferential flow KW - fluid dynamics KW - tight sands KW - sedimentary rocks KW - transport KW - diffusivity KW - hydrology KW - methane KW - Darcy's law KW - porous materials KW - mathematical models KW - gas shale KW - alkanes KW - porosity KW - boundary conditions KW - flows KW - computer programs KW - organic compounds KW - multiphase flow KW - hydrocarbons KW - reservoir properties KW - kerogen KW - permeability KW - 29A:Economic geology, geology of energy sources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=A+numerical+study+of+microscale+flow+behavior+in+tight+gas+and+shale+gas+reservoir+systems&rft.au=Freeman%2C+C+Matt%3BMoridis%2C+George+J%3BBlasingame%2C+T+A&rft.aulast=Freeman&rft.aufirst=C&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=253&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9761-6 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; boundary conditions; computer programs; Darcy's law; diffusivity; flows; fluid dynamics; gas shale; hydrocarbons; hydrology; kerogen; mathematical models; methane; multiphase flow; natural gas; organic compounds; permeability; petroleum; petroleum engineering; porosity; porous materials; preferential flow; reservoir properties; sedimentary rocks; source rocks; tight sands; TOUGH2; transport DO - http://dx.doi.org/10.1007/s11242-011-9761-6 ER - TY - JOUR T1 - Impact of water consumption and saturation-dependent corrosion rate on hydrogen generation and migration from an intermediate-level radioactive waste repository AN - 1803774786; 2016-060767 AB - The corrosion of metals contained in intermediate-level long-lived waste (ILW) under reduced chemical condition will lead to the production of hydrogen gas during the post-closure phase of a deep geological repository for radioactive waste. According to previous investigations by Talandier et al. (Proceedings of TOUGH symposium 2006, Berkeley, 2006), the period of concern covers several 1,000 years after closure of a repository in a clay host rock (Callovo-Oxfordian). The limited hydrogen transport efficiency of the host rock will lead to significant saturation of the concrete waste canister pore space and voids with a gas phase and pressure build-up within the emplacement drifts. On the other hand, the water availability is limited as a result of (i) the low permeability of the clay host rock and (ii) the desaturation of the rock mass close to the drift wall due to the ventilation of the drifts during the operational phase of the repository. In former numerical simulations it was assumed that under the reducing chemical conditions prevailing in the repository, the corrosion rate would be a function of the available metal surface and the temperature only. In this paper, simulation results based on new phenomenological functions are presented, which were implemented in TOUGH2. These allow taking into account (i) a water saturation dependency of the hydrogen generation rate, (ii) the water consumption due to the corrosion process, and (iii) the total metal mass available for corrosion. The paper presents results of 1D radial and 2D vertical simulations of a typical cross-section of a waste emplacement drift and the surrounding rock mass. The interactions between water availability from the low permeable clay, the dependency of the hydrogen generation rates from the water saturation of the waste package and the hydrogen migration in the host rock are demonstrated. Copyright 2011 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Croise, Jean AU - Mayer, Gerhard AU - Talandier, Jean AU - Wendling, Jacques Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 59 EP - 75 PB - Springer, Dordrecht VL - 90 IS - 1 SN - 0169-3913, 0169-3913 KW - TOUGH2 KW - solute transport KW - survey organizations KW - magnesium KW - saturated materials KW - government agencies KW - Europe KW - simulation KW - radioactive waste KW - France KW - sedimentary rocks KW - chemical reactions KW - transport KW - pore pressure KW - aluminum KW - ANDRA KW - hydrodynamics KW - alloys KW - intermediate-level waste KW - hydrology KW - corrosion KW - alkaline earth metals KW - two-phase models KW - Western Europe KW - Darcy's law KW - migration of elements KW - boundary conditions KW - computer programs KW - claystone KW - metals KW - hydrogen KW - multiphase flow KW - anaerobic environment KW - waste disposal KW - clastic rocks KW - underground disposal KW - pore water KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1803774786?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Impact+of+water+consumption+and+saturation-dependent+corrosion+rate+on+hydrogen+generation+and+migration+from+an+intermediate-level+radioactive+waste+repository&rft.au=Croise%2C+Jean%3BMayer%2C+Gerhard%3BTalandier%2C+Jean%3BWendling%2C+Jacques&rft.aulast=Croise&rft.aufirst=Jean&rft.date=2011-10-01&rft.volume=90&rft.issue=1&rft.spage=59&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-011-9803-0 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2016-01-01 N1 - Number of references - 12 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-07-14 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; alloys; aluminum; anaerobic environment; ANDRA; boundary conditions; chemical reactions; clastic rocks; claystone; computer programs; corrosion; Darcy's law; Europe; France; government agencies; hydrodynamics; hydrogen; hydrology; intermediate-level waste; magnesium; metals; migration of elements; multiphase flow; permeability; pore pressure; pore water; radioactive waste; saturated materials; sedimentary rocks; simulation; solute transport; survey organizations; TOUGH2; transport; two-phase models; underground disposal; waste disposal; Western Europe DO - http://dx.doi.org/10.1007/s11242-011-9803-0 ER - TY - JOUR T1 - Usability of residential thermostats: Preliminary investigations AN - 1777118886; 15161816 AB - Residential thermostats control 9% of the total energy use in the United States and similar amounts in most developed countries; however, the details of how people use them have been largely ignored. Five parallel investigations related to the usability of residential thermostats were undertaken. No single investigation was representative of the whole population, but each gave insights into different groups or usage patterns. Personal interviews revealed widespread misunderstanding of thermostat operation. The on-line surveys found that most thermostats were selected by previous residents, landlords, or other agents. The majority of occupants operated thermostats manually, rather than relying on their programmable features and almost 90% of respondents reported that they rarely or never adjusted the thermostat to set a weekend or weekday program. Photographs of thermostats were collected in one on-line survey, which revealed that about 20% of the thermostats displayed the wrong time and that about 50% of the respondents set their programmable thermostats on "long term hold" (or its equivalent). Low-income families were visited and their thermostats photographed. Even though 85% of the respondents declared that they use programming features to automatically raise or lower the temperature, the photos indicated that 45% were in hold. Laboratory tests were undertaken to measure usability of thermostats. A measurement protocol was developed and a metric was created that could quantitatively distinguish usability among five thermostats. This metric could be used to establish minimum levels of usability in programmable thermostats and other energy-using devices with complex controls. JF - Building and Environment AU - Meier, Alan AU - Aragon, Cecilia AU - Peffer, Therese AU - Perry, Daniel AU - Pritoni, Marco AD - Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 1891 EP - 1898 PB - Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom VL - 46 IS - 10 SN - 0360-1323, 0360-1323 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Programmable thermostat KW - User interface KW - Amazon mechanical turk KW - Usability test procedure KW - Energy star KW - Energy conservation KW - Energy use KW - Equivalence KW - Programming KW - On-line systems KW - Residential KW - Devices KW - Surveys KW - Thermostats KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777118886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Building+and+Environment&rft.atitle=Usability+of+residential+thermostats%3A+Preliminary+investigations&rft.au=Meier%2C+Alan%3BAragon%2C+Cecilia%3BPeffer%2C+Therese%3BPerry%2C+Daniel%3BPritoni%2C+Marco&rft.aulast=Meier&rft.aufirst=Alan&rft.date=2011-10-01&rft.volume=46&rft.issue=10&rft.spage=1891&rft.isbn=&rft.btitle=&rft.title=Building+and+Environment&rft.issn=03601323&rft_id=info:doi/10.1016%2Fj.buildenv.2011.03.009 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.buildenv.2011.03.009 ER - TY - JOUR T1 - Laser ablation molecular isotope spectroscopy; a next generation LIBS technology for real-time isotope measurements AN - 1473586781; 2013-005460 AB - A new approach based on molecular emission in a laser plasma has been developed for measuring isotopes in real time and at atmospheric pressure. The technology is called LAMIS for Laser Ablation Molecular Isotope Spectroscopy. Laser ablation (LA) is the driving process for removing a tiny amount sample and creating a small luminous optical plasma. By measuring the optical emission from this plasma, all chemical elements in a sample can be immediately analyzed. Benefits of laser ablation include no sample preparation, no consumables, every sample, real-time analysis, and field use. Understanding the fundamentals of the ablation process has led to improvements in accuracy and precision for direct solid sample chemical analysis. In general, this technology provides ppm sensitivity for elemental analysis and also allows molecular classification based on database libraries and chemometrics. Isotopic analysis has been reported using LIBS, with almost all of the previous measurements performed at reduced pressure. However, this talk will discuss the ability to measure isotope splitting in laser ablation plasmas at atmospheric pressure using only a small spectrometer with relatively low resolving power. Examples of LAMIS for light elements C and B, and for Sr will be presented. JF - Abstracts with Programs - Geological Society of America AU - Russo, Rick AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 233 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - technology KW - laser methods KW - laser ablation molecular isotope spectroscopy KW - LIBS spectra KW - laser ablation KW - spectra KW - geochemistry KW - emission spectra KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1473586781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Laser+ablation+molecular+isotope+spectroscopy%3B+a+next+generation+LIBS+technology+for+real-time+isotope+measurements&rft.au=Russo%2C+Rick%3BAnonymous&rft.aulast=Russo&rft.aufirst=Rick&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2014-01-02 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - emission spectra; geochemistry; laser ablation; laser ablation molecular isotope spectroscopy; laser methods; LIBS spectra; spectra; technology ER - TY - JOUR T1 - Tight gas; from pore-scale to well decline curve analysis AN - 1351595521; 2013-039543 AB - Tight gas sands and gas shales are characterized by extremely low permeability of the rock. The efficiency of recovery operations depends on better understanding of the underlying pore-scale mechanisms of single and multi-phase gas flow. Micron-scale computed tomography and focused ion beam imaging techniques reveal the complexity of the 3D pore space geometry. A volume of tens of microns across can include a very rich diversity of minerals and grain sizes. The images also show how different the rock samples from different formations can be. Application of the pore-scale analysis to modeling gas flow into a fractured well leads to an analytically-described decline type curve. The curve consists of two regimes: a square-root-of-time decline in early production is followed by an exponential decline later on. Even though the underlying assumptions include great simplifications, production data from a number of gas shale wells verify the modeling results. JF - Abstracts with Programs - Geological Society of America AU - Silin, Dmitriy B AU - Kneafsey, Timothy J AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 567 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - tomography KW - models KW - oil wells KW - sedimentary rocks KW - natural gas KW - petroleum KW - gas shale KW - tight sands KW - porosity KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1351595521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Tight+gas%3B+from+pore-scale+to+well+decline+curve+analysis&rft.au=Silin%2C+Dmitriy+B%3BKneafsey%2C+Timothy+J%3BAnonymous&rft.aulast=Silin&rft.aufirst=Dmitriy&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=567&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-05-16 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - gas shale; models; natural gas; oil wells; permeability; petroleum; porosity; sedimentary rocks; tight sands; tomography ER - TY - JOUR T1 - A calcium isotope test of end-Permian ocean acidification using biogenic apatite AN - 1328504092; 2013-032987 AB - Submarine erosional truncation of uppermost Permian carbonate strata has been interpreted to reflect ocean acidification coincident with the end-Permian mass extinction. Although this scenario is consistent with carbon isotope and paleontological data, several alternative scenarios, such as ocean overturn or collapse of the biological pump, can also account for the carbon isotope and paleontological evidence. Calcium isotopes provide a geochemical proxy to test between acidification and alternative scenarios. Specifically, a negative shift in the calcium isotope composition (delta (super 44/40) Ca) of seawater is predicted under the acidification scenario but not the alternatives. The delta (super 44/40) Ca of carbonate rocks from south China exhibits a negative excursion of approximately 0.3ppm, but this shift could result from either a change in the delta (super 44/40) Ca of seawater or a change in carbonate mineralogy because calcite and aragonite exhibit substantially different fractionation factors relative to seawater. To test whether the negative shift in delta (super 44/40) Ca reflects seawater delta (super 44/40) Ca or carbonate mineralogy, we measured the delta (super 44/40) Ca of conodont microfossils (calcium hydroxyapatite) from the global stratotype section for the Permian-Triassic boundary at Meishan, China. The conodont delta (super 44/40) Ca record shows a negative excursion similar in stratigraphic position and magnitude to that previously observed in carbonate rocks. Parallel negative excursions in the delta (super 44/40) Ca of carbonate rocks and conodont microfossils cannot be accounted for by a change in carbonate mineralogy but are consistent with a negative shift in the delta (super 44/40) Ca of seawater. These data add further support for the ocean acidification scenario, pointing toward strong similarities between the greatest catastrophe in the history of animal life and anticipated global change during the 21 (super st) century. JF - Abstracts with Programs - Geological Society of America AU - Hinojosa, Jessica L AU - Brown, Shaun T AU - DePaolo, Donald J AU - Paytan, Adina AU - Shen, Shuzhong AU - Chen, Jun AU - Payne, Jonathan L AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 382 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - calcium KW - apatite KW - alkaline earth metals KW - isotopes KW - Conodonta KW - Paleozoic KW - isotope ratios KW - phosphates KW - Permian KW - stable isotopes KW - Mesozoic KW - Lower Triassic KW - Upper Permian KW - Ca-44/Ca-40 KW - Triassic KW - metals KW - Permian-Triassic boundary KW - acidification KW - stratigraphic boundary KW - mass extinctions KW - microfossils KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1328504092?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+calcium+isotope+test+of+end-Permian+ocean+acidification+using+biogenic+apatite&rft.au=Hinojosa%2C+Jessica+L%3BBrown%2C+Shaun+T%3BDePaolo%2C+Donald+J%3BPaytan%2C+Adina%3BShen%2C+Shuzhong%3BChen%2C+Jun%3BPayne%2C+Jonathan+L%3BAnonymous&rft.aulast=Hinojosa&rft.aufirst=Jessica&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=382&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-04-19 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acidification; alkaline earth metals; apatite; Ca-44/Ca-40; calcium; Conodonta; isotope ratios; isotopes; Lower Triassic; mass extinctions; Mesozoic; metals; microfossils; Paleozoic; Permian; Permian-Triassic boundary; phosphates; stable isotopes; stratigraphic boundary; Triassic; Upper Permian ER - TY - JOUR T1 - Constraints on ocean biogeochemistry during the end-Guadalupian biotic crisis from stable calcium isotopes AN - 1328503817; 2013-032989 AB - The end-Guadalupian biotic crisis (ca. 260 Mya) has been linked to flood basalt volcanism from the Emeishan LIP (South China) and its environmental effects; however, the exact environmental consequences of volcanism and the causes of diversity loss, as well as a temporal link, remain poorly constrained. Anomalously high carbonate carbon isotope (delta (super 13) C) values are ubiquitous in Capitanian-age carbonates (referred to as the "Kamura Event"), and are followed by a negative excursion in delta (super 13) C during the latest Capitanian. Carbon isotopes alone are insufficient to distinguish among numerous scenarios for changes in ocean biogeochemistry and losses in biodiversity, such as ocean acidification, ocean stagnation and overturn, and collapse of the biological pump. Because the carbon and calcium cycles are intimately linked via the weathering and burial of CaCO (sub 3) sediment, changes in the calcium cycle and calcium isotope record can be used to place further constraints on carbon cycle behavior and Earth system change. In this study, we present the first record of stable calcium isotopes (delta (super 44/40) Ca) for Guadalupian- and Lopingian-age carbonates from Penglaitan, South China, the global stratotype section and point (GSSP) for the Guadalupian-Lopingian boundary. We further corroborate the delta (super 44/40) Ca record of carbonates with a delta (super 44/40) Ca record from conodont calcium hydroxapatite. We use a coupled model of the calcium and carbon cycles to investigate the behavior of the respective isotope systems during hypothesized causes of the end-Guadalupian crisis. Results indicate that if ocean acidification occurred during this interval, the magnitude of change in ocean pH and carbonate saturation state was much smaller than that associated with the subsequent end-Permian mass extinction. Ongoing efforts aim at expanding and refining these records, and at establishing a temporal framework that allows the correlation of purported causes and effects of the biotic crisis (this research is supported by NSF grants 0923669 and 0923620). JF - Abstracts with Programs - Geological Society of America AU - Jost, Adam B AU - Mundil, Roland AU - He, Bin AU - Brown, Shaun T AU - DePaolo, Donald J AU - Payne, Jonathan L AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 382 EP - 383 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - calcium KW - alkaline earth metals KW - Far East KW - isotopes KW - Guadalupian KW - Paleozoic KW - isotope ratios KW - biochemistry KW - Permian KW - stable isotopes KW - Mesozoic KW - Lower Triassic KW - Upper Permian KW - Ca-44/Ca-40 KW - Triassic KW - metals KW - Permian-Triassic boundary KW - stratigraphic boundary KW - Asia KW - China KW - 12:Stratigraphy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1328503817?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Constraints+on+ocean+biogeochemistry+during+the+end-Guadalupian+biotic+crisis+from+stable+calcium+isotopes&rft.au=Jost%2C+Adam+B%3BMundil%2C+Roland%3BHe%2C+Bin%3BBrown%2C+Shaun+T%3BDePaolo%2C+Donald+J%3BPayne%2C+Jonathan+L%3BAnonymous&rft.aulast=Jost&rft.aufirst=Adam&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=382&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-04-19 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Asia; biochemistry; Ca-44/Ca-40; calcium; China; Far East; Guadalupian; isotope ratios; isotopes; Lower Triassic; Mesozoic; metals; Paleozoic; Permian; Permian-Triassic boundary; stable isotopes; stratigraphic boundary; Triassic; Upper Permian ER - TY - JOUR T1 - Fluid flow in a fluvial formation revealed by continual monitoring of fluid chemistry during injection of carbon dioxide AN - 1320155748; 2013-027291 AB - At Cranfield, Mississippi, U.S.A., large-scale carbon dioxide (CO (sub 2) ) injection through an injection well ( approximately 3,080 m deep) was closely monitored by a series of downhole tools in two observation wells. The injection to the Lower Tuscaloosa Formation injection zone, which consists of amalgamated fluvial point-bar and channel-fill deposits, presented a great opportunity to study the control of sedimentary architecture on fluid flow. U-tube samplers were installed in two observation wells for frequent fluid sampling and provided valuable insight for fluid flow in the CO (sub 2) injection zone. Continual fluid sampling was carried out during the first month of CO (sub 2) injection in December 2009. Two subsequent tracer tests (April and May 2010) using sulfur hexafluoride (SF (sub 6) ) and krypton as vapor-phase tracers were conducted at different injection rates to measure injectate travel time and tracer dilution. The monitoring results show considerable heterogeneity of fluid flow between the wells (the observation wells are 68m and 112 m east to the injection well, respectively). It is found that the injector was connected to the observation wells through different flow pathways. Gas compositions after breakthrough suggest that multiple injectate fronts arrived at the observation wells through different preferential pathways at different times. The arrival of the flow fronts were marked by temporary increase of concentrations of methane and tracers. The change of gas flow velocity along different flow paths was not proportional to the change of injection rate. The flow pathways evolved with time. After five months of flooding, CO (sub 2) travel time between wells slowed, suggesting increase of CO (sub 2) saturation in and around flow paths or development of new flow paths. Reservoir flow simulation was performed to match the gas composition evolution. Modeling reproduces the fluctuations in CH (sub 4) and CO (sub 2) concentrations after the arrival of the injectate. It shows that CH (sub 4) degasses from brine and is enriched along the contact of water-gas contact. Multiple flow paths bring methane-rich gas at the front of the flow into the observation wells at different times. JF - Abstracts with Programs - Geological Society of America AU - Lu, Jiemin AU - Cook, Paul AU - Hosseini, Seyyed A AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 455 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - aliphatic hydrocarbons KW - observation wells KW - simulation KW - carbon dioxide KW - Adams County Mississippi KW - sedimentary rocks KW - sampling KW - Cranfield Mississippi KW - tracers KW - velocity KW - heterogeneity KW - North America KW - monitoring KW - methane KW - gas-water interface KW - Mississippi KW - bars KW - alkanes KW - Gulf Coastal Plain KW - gas injection KW - organic compounds KW - hydrocarbons KW - fluvial features KW - point bars KW - fluvial environment KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1320155748?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Fluid+flow+in+a+fluvial+formation+revealed+by+continual+monitoring+of+fluid+chemistry+during+injection+of+carbon+dioxide&rft.au=Lu%2C+Jiemin%3BCook%2C+Paul%3BHosseini%2C+Seyyed+A%3BAnonymous&rft.aulast=Lu&rft.aufirst=Jiemin&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-03-28 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Adams County Mississippi; aliphatic hydrocarbons; alkanes; bars; carbon dioxide; Cranfield Mississippi; fluvial environment; fluvial features; gas injection; gas-water interface; Gulf Coastal Plain; heterogeneity; hydrocarbons; methane; Mississippi; monitoring; North America; observation wells; organic compounds; point bars; sampling; sedimentary rocks; simulation; tracers; United States; velocity ER - TY - JOUR T1 - Analytical solutions for pressure perturbation and leakage through aquitards and wells in multilayered aquifer systems AN - 1151912282; 2012-097761 AB - Large-scale groundwater pumping or deep fluid injection in a multilayered subsurface system may generate pressure perturbation not only in the target formation(s), but also in over- and underlying units. Hydraulic communication in the vertical direction may occur via diffuse leakage through aquitards and/or via focused leakage through leaky wells. Existing analytical solutions for pressure perturbation and fluid flow in such systems consider either diffuse leakage or focused leakage, but never in combination with each other. This study presents generalized analytical solutions for pressure buildup and leakage rates in a multilayered aquifer-aquitard system consisting of any number of aquifers, alternating aquitards, injection wells, and leaky wells. The equations of horizontal groundwater flow in the aquifers are coupled by the vertical flow equations in the aquitards and by the continuity equations in the leaky wells. The general solutions were obtained by applying the Laplace Transform method and eigenvalue analysis to the governing equations. Accuracy of the solutions was demonstrated by comparison with other analytical solutions as well as with detailed numerical predictions. Application to an eight-aquifer system with leaky aquitards and one leaky well demonstrates the usefulness and efficiency of the approach, and illustrates the pressure behavior over a spectrum of leakage scenarios and parameters. JF - Abstracts with Programs - Geological Society of America AU - Cihan, Abdullah AU - Zhou, Quanlin AU - Birkholzer, Jens T AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 81 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - pressure KW - pumping KW - hydraulic conductivity KW - equations KW - aquitards KW - water wells KW - ground water KW - aquifers KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151912282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Analytical+solutions+for+pressure+perturbation+and+leakage+through+aquitards+and+wells+in+multilayered+aquifer+systems&rft.au=Cihan%2C+Abdullah%3BZhou%2C+Quanlin%3BBirkholzer%2C+Jens+T%3BAnonymous&rft.aulast=Cihan&rft.aufirst=Abdullah&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=81&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-11-15 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; aquitards; equations; ground water; hydraulic conductivity; pressure; pumping; water wells ER - TY - JOUR T1 - Evaluation of the 'lose your excuse' public service advertising campaign for tweens to save energy AN - 1015465023; 4295144 AB - This study evaluates the 2008-2009 'Lose your Excuse' public service advertising (PSA) campaign on energy efficiency targeting 8- to 12-year-olds, intended to increase knowledge, foster proactive attitudes, and change energy usage behaviors. Baseline and two follow-up surveys were conducted with online samples representative of the national population of households with kids with online access. Almost half (47%) of the tweens recognized at least one ad from the campaign. Ad recognition was positively associated with knowledge, proactive attitudes, and energy-saving behavior. Propensity score analysis confirmed a small but measurable and statistically significant effect on energy-saving behavior. The discussion section compares these results to public health campaigns in terms of ghost awareness, reach, and effect size. Reprinted by permission of Sage Publications, Inc. JF - Evaluation review AU - Bertrand, Jane T AU - Goldman, Patty AU - Zhivan, Natalia AU - Agyeman, Yaw AU - Barber, Erin AD - Tulane University ; Ad Council ; Lawrence Berkeley National Laboratory ; C&R Research Y1 - 2011/10// PY - 2011 DA - Oct 2011 SP - 455 EP - 489 VL - 35 IS - 5 SN - 0193-841X, 0193-841X KW - Sociology KW - Tweens KW - Energy efficiency KW - Attitudes KW - Media KW - Public knowledge KW - Advertising KW - Youth KW - Public health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015465023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Evaluation+review&rft.atitle=Evaluation+of+the+%27lose+your+excuse%27+public+service+advertising+campaign+for+tweens+to+save+energy&rft.au=Bertrand%2C+Jane+T%3BGoldman%2C+Patty%3BZhivan%2C+Natalia%3BAgyeman%2C+Yaw%3BBarber%2C+Erin&rft.aulast=Bertrand&rft.aufirst=Jane&rft.date=2011-10-01&rft.volume=35&rft.issue=5&rft.spage=455&rft.isbn=&rft.btitle=&rft.title=Evaluation+review&rft.issn=0193841X&rft_id=info:doi/10.1177%2F0193841X11428489 LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2013-06-12 N1 - Last updated - 2013-09-16 N1 - SubjectsTermNotLitGenreText - 4255 4276 4249 2805 3872 554 971; 608 7738 11245 11239; 7862 2572; 13779 652 5676 646 6091; 10457 7073; 1378 10404; 10449 5772 DO - http://dx.doi.org/10.1177/0193841X11428489 ER - TY - JOUR T1 - Scientific issues related to geologic storage of carbon sequestration; learning from nuclear waste and Yucca Mountain R&D AN - 1015460586; 2012-049374 JF - Abstracts with Programs - Geological Society of America AU - Birkholzer, Jens T AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 197 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - risk management KW - carbon sequestration KW - waste disposal sites KW - Nye County Nevada KW - environmental analysis KW - radioactive waste KW - carbon dioxide KW - models KW - environmental management KW - case studies KW - waste management KW - mitigation KW - land management KW - risk assessment KW - waste disposal KW - Yucca Mountain KW - Nevada KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015460586?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Scientific+issues+related+to+geologic+storage+of+carbon+sequestration%3B+learning+from+nuclear+waste+and+Yucca+Mountain+R%26amp%3BD&rft.au=Birkholzer%2C+Jens+T%3BAnonymous&rft.aulast=Birkholzer&rft.aufirst=Jens&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_193841.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; case studies; environmental analysis; environmental management; land management; mitigation; models; Nevada; Nye County Nevada; radioactive waste; risk assessment; risk management; United States; waste disposal; waste disposal sites; waste management; Yucca Mountain ER - TY - JOUR T1 - Toward rational design of bacterial genomes AN - 1014100836; 15913049 AB - The advent of genetic engineering - the ability to edit and insert DNA into living organisms - in the latter half of the 20th century created visions of a new era of synthetic biology, where novel biological functions could be designed and implemented for useful purposes. We are witnessing an exciting revolution of scale, wherein technical progresses allow for the manipulation of genetic material at the whole genome level. This will enable the manufacture of increasingly complex genetic designs to solve pressing challenges in health, energy and the environment - if and when such designs can be specified. We argue that the organized development of key common application organisms, engineered for engineerability, and attendant libraries of parts, pathways and standardized manufacturing are necessary for this genome-scale technology to realize its promise. JF - Current Opinion in Microbiology AU - Cambray, Guillaume AU - Mutalik, Vivek K AU - Arkin, Adam P AD - BioFAB, 5885 Hollis Street, Emeryville, CA 94608, USA, aparkin@lbl.gov Y1 - 2011/10// PY - 2011 DA - Oct 2011 SP - 624 EP - 630 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 14 IS - 5 SN - 1369-5274, 1369-5274 KW - Microbiology Abstracts B: Bacteriology KW - Genomes KW - Bacteria KW - Vision KW - Reviews KW - Energy KW - Genetic engineering KW - DNA KW - J 02310:Genetics & Taxonomy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1014100836?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Opinion+in+Microbiology&rft.atitle=Toward+rational+design+of+bacterial+genomes&rft.au=Cambray%2C+Guillaume%3BMutalik%2C+Vivek+K%3BArkin%2C+Adam+P&rft.aulast=Cambray&rft.aufirst=Guillaume&rft.date=2011-10-01&rft.volume=14&rft.issue=5&rft.spage=624&rft.isbn=&rft.btitle=&rft.title=Current+Opinion+in+Microbiology&rft.issn=13695274&rft_id=info:doi/10.1016%2Fj.mib.2011.08.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2014-06-26 N1 - SubjectsTermNotLitGenreText - Genomes; Vision; Genetic engineering; Energy; Reviews; DNA; Bacteria DO - http://dx.doi.org/10.1016/j.mib.2011.08.001 ER - TY - JOUR T1 - From bacterial finches to bactivorous meiofauna; microbial biogeography of the deep crustal biosphere AN - 1011394177; 2012-045305 AB - The biogeography of subsurface microorganisms in the fractured rock of the continental crust is controlled by interconnected, fluid-filled fractures, which occupy approximately 0.01%. The "habitable" matrix porosity ranges from 0.005 to 0.0005% and is much less interconnected. For the past 10 years the cellular abundance and the phylogenetic diversity of the occupants of this environment have been examined in the Witwatersrand Basin and Bushveld Igneous Complex in South Africa. From the 37 fractures intersected by sampled boreholes, 719 operational taxonomic units (OTUs) have been identified based upon 3% identity in the 16S rRNA gene sequences. For shallow fractures (0.6-1.5 km depth) Proteobacteria dominate the phylotypes, and for deeper fractures (2.0-3.8 km depth) Firmicutes dominate the phylotypes. The bacterial abundance ranges from 10 (super 4) to 10 (super 5) cells mL (super -1) with negligible correlation with depth. Archaea comprise 3% of the diversity and approximately 0.1% of the cellular abundance. The number of OTUs within a single fracture range from 1 to 20 with the greatest diversity associated with those fractures with the youngest fracture water ages (<35 kyr). Fifty OTUs occur in more than one fracture and of these only 3 OTUs occur across the Witwatersrand Basin, and they are restricted to great depth. These deep, yet widely distributed OTUs, one of which is candidatus D. audaxviator, may represent subsurface bacterial "finches" whose genomes enable self-sustainability under a broad environmental range. The lack of overlap in OTUs between fractures suggests an "desert oases" biogeographical pattern that could encompass approximately 8,000 OTUs within a 10 (super 16) cm (super 3) volume of the Witwatersrand Basin containing approximately 10 (super 16-17) cells. Compared to soils, which typically contain 10 (super 9) cells and approximately 8,000 OTUs per cm (super 3) , the diversity of deep subsurface biosphere is very low. Eukaryotes, including bactivorous nematodes, have been detected in deep fractures with young fracture water but at an extremely low abundance of one per approximately 10 (super 4) liters of fracture water. Major gaps remain in our understanding of deep life biogeography including whether horizontal subsurface migration or vertical migration from the surface is more important in explaining the observed spatial distribution of phylotypes. We hope to fill these gaps by making use of a Network of Inner Space Observatories (NISO). JF - Abstracts with Programs - Geological Society of America AU - Onstott, Tullis AU - Chehoud, C AU - van Heerden, E AU - Litthauer, D AU - Jugdave, A AU - Albertyn, K AU - Kieft, Thomas AU - Borgonie, G AU - Garcia-Moyano, A AU - Chivian, D AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 195 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - lithosphere KW - igneous rocks KW - matrix KW - continental crust KW - biogeography KW - porosity KW - habitat KW - fractures KW - continental lithosphere KW - biosphere KW - Southern Africa KW - Bushveld Complex KW - bacteria KW - Africa KW - ecology KW - South Africa KW - crust KW - Witwatersrand KW - microorganisms KW - 22:Environmental geology KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=From+bacterial+finches+to+bactivorous+meiofauna%3B+microbial+biogeography+of+the+deep+crustal+biosphere&rft.au=Onstott%2C+Tullis%3BChehoud%2C+C%3Bvan+Heerden%2C+E%3BLitthauer%2C+D%3BJugdave%2C+A%3BAlbertyn%2C+K%3BKieft%2C+Thomas%3BBorgonie%2C+G%3BGarcia-Moyano%2C+A%3BChivian%2C+D%3BAnonymous&rft.aulast=Onstott&rft.aufirst=Tullis&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=195&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_196693.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Africa; bacteria; biogeography; biosphere; Bushveld Complex; continental crust; continental lithosphere; crust; ecology; fractures; habitat; igneous rocks; lithosphere; matrix; microorganisms; porosity; South Africa; Southern Africa; Witwatersrand ER - TY - JOUR T1 - Field-scale determination of uranium isotope fractionation induced by U(VI) adsorption and desorption; the super 8 experiment at DOE's Rifle, Colorado site AN - 1011394106; 2012-045410 AB - (super 238) U/ (super 235) U shows promise as an indicator of U(VI) reduction in groundwater contaminated by natural U (e.g., from mining and milling sites). Like other stable isotope ratios which indicate redox reactions, (super 238) U and (super 235) U (radioactively stable on decadal time scales) can be fractionated during U(VI) reduction. Previous work on both field-scale bioremediation and ancient redox fronts preserved as ore deposits show approximately 1 per mil shift to lower (super 238) U/ (super 235) U in the water as U(IV) is removed as a solid. The sense of shift is opposite to that observed with many lighter elements, presumably because nuclear field shift effects dominate over mass-dependent effects. Identifying U(VI) reduction is critically important, both as a means of tracking bioremediation of uranium contamination in groundwater and as a possible signature of U redox cycling during Earth history. Recent laboratory work, however, indicates small but significant (super 238) U/ (super 235) U shifts induced by adsorption of U(VI) onto manganese oxides, introducing a possible confounding effect for using (super 238) U/ (super 235) U variations to infer or quantify U(VI) reduction. The present study examines (super 238) U/ (super 235) U variation during a field experiment at the Rifle, CO, IFRC site in which bicarbonate was injected to de-sorb U(VI) from aquifer solids. Samples from the CU-03 well, 1 m downgradient from the bicarbonate injection gallery, showed an initial concentration of 150 ng/mL U(VI), followed by a desorption-induced increase to 300 ng/mL for ten days, then a resorption-induced decrease to 70 ng/mL over two weeks, and a return to 150 ng/mL over two weeks. Thirty-three samples, taken over 67 days and covering all four phases of the system response, were analyzed. No significant shift in (super 238) U/ (super 235) U was observed; the standard deviation of all the (super 238) U/ (super 235) U measurements was 0.06 per mil, and no significant trends appeared in the data. This is encouraging, as it indicates that the (super 238) U/ (super 235) U variations observed during U(VI) reduction induced by acetate injection solely reflect the reduction process. This simplifies interpretation of previously observed reduction induced shifts. It is not clear why sorption-related (super 238) U/ (super 235) U shifts reported in recent laboratory experiments did not appear; experiments with sediments from this site are planned to address that issue. JF - Abstracts with Programs - Geological Society of America AU - Laubach, Parker AU - Johnson, Thomas AU - Lundstrom, Craig AU - Williams, Kenneth H AU - Long, Philip E AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 231 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - isotope fractionation KW - desorption KW - Garfield County Colorado KW - isotopes KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - environmental management KW - waste management KW - Rifle Colorado KW - radioactive isotopes KW - water pollution KW - biodegradation KW - mine waste KW - isotope ratios KW - pollution KW - adsorption KW - bioremediation KW - metals KW - uranium KW - waste disposal KW - U-238/U-235 KW - Colorado KW - tailings KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394106?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Field-scale+determination+of+uranium+isotope+fractionation+induced+by+U%28VI%29+adsorption+and+desorption%3B+the+super+8+experiment+at+DOE%27s+Rifle%2C+Colorado+site&rft.au=Laubach%2C+Parker%3BJohnson%2C+Thomas%3BLundstrom%2C+Craig%3BWilliams%2C+Kenneth+H%3BLong%2C+Philip+E%3BAnonymous&rft.aulast=Laubach&rft.aufirst=Parker&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_194075.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; adsorption; biodegradation; bioremediation; Colorado; desorption; environmental analysis; environmental management; Garfield County Colorado; ground water; isotope fractionation; isotope ratios; isotopes; metals; mine waste; pollution; radioactive isotopes; radioactive waste; remediation; Rifle Colorado; tailings; U-238/U-235; United States; uranium; waste disposal; waste management; water pollution ER - TY - JOUR T1 - The effect of bicarbonate generated from microbial oxidation of acetate during biostimulation of uranium reduction at the Old Rifle UMTRA site AN - 1011394101; 2012-045409 AB - The Old Rifle site in Rifle, CO was a uranium- and vanadium-milling site active from 1924-1958. Since 2002, acetate has been added to groundwater to stimulate bacterial growth and promote reductive immobilization of uranium. While biostimulation successfully decreases groundwater uranium concentrations to levels below the drinking water standard (0.13mu M) during iron-reduction, prolonged removal of uranium is less successful once sulfate reduction becomes the predominant metabolic process. The effect has previously been interpreted to indicate that sulfate-reducing organisms are less efficient at uranium reduction. During August-September of 2010, an injection experiment was conducted to test the effects of flushing sorbed uranium from aquifer sediments with a concentrated bicarbonate solution coupled with acetate-based biostimulation. One half of the test plot was perfused with 50mM NaHCO (sub 3) with 85 ppm of deuterated water as a conservative tracer; this was followed by addition of 5mM Na-acetate with 2mM of NaBr across the experimental plot. Breakthrough of the bicarbonate/D (sub 2) O solution was monitored in quasi-real time using a Los Gatos Research, Inc. (LGR) water isotope analyzer, which enabled separation of the distinct effects induced by the bicarbonate and acetate solutions. The bicarbonate led to an initial release of uranium from the sediments, increasing dissolved uranium concentrations 5 to 12-fold (0.2 to 2.3mu M) depending upon position and distance from the injection location. Injection of acetate created reducing conditions in the aquifer, replicating previous biostimulation experiments at the site. The characteristic rebound in uranium concentrations was observed when sulfate reduction became predominant in the region of the aquifer receiving only acetate. In contrast, uranium concentrations remained well below pre-injection levels in the section of the experimental plot flushed with bicarbonate after sulfate reduction became dominant. This indicates that the rebound observed during sulfate reduction is primarily caused by an increase in alkalinity accompanying the nearly complete microbial consumption of acetate during sulfate reduction rather than a lack of uranium-reducing capacity by sulfate reducing bacteria. JF - Abstracts with Programs - Geological Society of America AU - Conrad, Mark E AU - Williams, Kenneth H AU - Bill, Markus AU - Gupta, Manish AU - Berman, Elena AU - Davis, James A AU - Long, Philip E AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 231 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Garfield County Colorado KW - waste disposal sites KW - environmental analysis KW - remediation KW - radioactive waste KW - ground water KW - environmental management KW - waste management KW - UMTRA KW - Rifle Colorado KW - water pollution KW - esters KW - biodegradation KW - mine waste KW - acetates KW - oxidation KW - pollution KW - bioremediation KW - Old Rifle Aquifer KW - aquifers KW - organic compounds KW - metals KW - bacteria KW - uranium KW - waste disposal KW - Colorado KW - tailings KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=The+effect+of+bicarbonate+generated+from+microbial+oxidation+of+acetate+during+biostimulation+of+uranium+reduction+at+the+Old+Rifle+UMTRA+site&rft.au=Conrad%2C+Mark+E%3BWilliams%2C+Kenneth+H%3BBill%2C+Markus%3BGupta%2C+Manish%3BBerman%2C+Elena%3BDavis%2C+James+A%3BLong%2C+Philip+E%3BAnonymous&rft.aulast=Conrad&rft.aufirst=Mark&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_196902.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acetates; actinides; aquifers; bacteria; biodegradation; bioremediation; Colorado; environmental analysis; environmental management; esters; Garfield County Colorado; ground water; metals; mine waste; Old Rifle Aquifer; organic compounds; oxidation; pollution; radioactive waste; remediation; Rifle Colorado; tailings; UMTRA; United States; uranium; waste disposal; waste disposal sites; waste management; water pollution ER - TY - JOUR T1 - Characterization of U contamination and solid phase mineralogy and geochemistry in the Rifle subsurface sediments AN - 1011394096; 2012-045408 AB - Several subsurface sediment samples were obtained during recent (2009 and 2010) drilling campaigns at the U.S. Department of Energy, Integrated Field Research Challenge Site located in Rifle, CO. The U plume at this site has not attenuated as previously expected due, most likely, to multiple sources of contaminant U. Both oxidized and naturally reduced zones are present in the Rifle subsurface. The naturally reduced zones (NRZ) usually contain high U concentrations, and, are likely significant contributors to the groundwater contamination. The objective of this study is twofold: i.) To characterize the subsurface sediments (NRZ and oxidized zones) in terms of U contamination and solid phase mineralogy and geochemistry; ii.) To study U interaction with various minerals and determine related sorption mechanisms. A variety of techniques such as XRD, mu -XRD, SEM-EDS, SEM-FIB, TEM-SAED, Moessbauer spectroscopy, EMPA, XRF and XANES, were or will be used to characterize the sediment samples from the La Quinta and Plot C experimental areas at the Rifle site. A series of extraction techniques were or will be employed to determine aqueous U(VI), Fe(II), Fe(III), labile U, acid volatile sulfide (AVS), inorganic and organic carbon contents and other co-contaminants. Initial results from chemical (acid and bicarbonate) extractions, microwave digestions and SEM/EDS measurements demonstrate that the solid phase concentrations of U and S were greater in the naturally reduced sediments. The presence of various co-contaminants, such as As, Zn, V, Cu and Se, was also confirmed in the La Quinta sediments. ZnS framboids and different sulfide minerals were present in the naturally reduced sediments. Initial spectroscopic analyses showed that areas of relatively high U concentrations were also present in contaminated sediments of the NRZs. U occurred as both U(IV) and U(VI). Although based on a small sample size, no strong correlations between Fe and U was found, suggesting that other minerals, in addition to Fe oxides and/or Fe sulfides, may host U in the naturally reduced sediments. Although the nature of U association with different minerals of both oxidized and NRZs is still under investigation, the initial results suggest that the secondary minerals may play an important role in determining U(VI) fate in the Rifle subsurface. JF - Abstracts with Programs - Geological Society of America AU - Qafoku, Nikolla P AU - Gartman, Brandy AU - Kukkadapu, Ravi K AU - Arey, Bruce AU - Murray, Christopher J AU - Resch, Charles T AU - Williams, Kenneth H AU - Long, Philip E AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 231 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - plumes KW - mine waste KW - Garfield County Colorado KW - pollutants KW - pollution KW - environmental analysis KW - radioactive waste KW - ground water KW - aquifers KW - environmental management KW - Rifle Colorado KW - metals KW - sediments KW - uranium KW - waste disposal KW - Colorado KW - chemical composition KW - water pollution KW - tailings KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Characterization+of+U+contamination+and+solid+phase+mineralogy+and+geochemistry+in+the+Rifle+subsurface+sediments&rft.au=Qafoku%2C+Nikolla+P%3BGartman%2C+Brandy%3BKukkadapu%2C+Ravi+K%3BArey%2C+Bruce%3BMurray%2C+Christopher+J%3BResch%2C+Charles+T%3BWilliams%2C+Kenneth+H%3BLong%2C+Philip+E%3BAnonymous&rft.aulast=Qafoku&rft.aufirst=Nikolla&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=231&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_195469.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; aquifers; chemical composition; Colorado; environmental analysis; environmental management; Garfield County Colorado; ground water; metals; mine waste; plumes; pollutants; pollution; radioactive waste; Rifle Colorado; sediments; tailings; United States; uranium; waste disposal; water pollution ER - TY - JOUR T1 - Unpredicted persistence of a uranium plume at a former mill tailings site in Rifle, Colorado; evidence for multiple sources of uranium AN - 1011394093; 2012-045407 AB - The uranium plume at a former vanadium and uranium mill site in Rifle, Colorado was predicted to attenuate below MCL's in 10 years based on a K (sub d) model coupled to groundwater flow. Observations of U concentration in multiple wells since that prediction in 1998 show that uranium has decreased or remained constant at low levels in some places. However, the core of the plume has changed little over more than a decade and in one area, U concentrations have actually increased. We identify five possible "sources" of U to account for these observations, 1) Downward flux of U from the vadose zone that is entrained into the aquifer during times of high water table and high runoff in the Colorado River, 2) Mobilization of reduced U from naturally reduced zones (NRZ's), 3) Slow oxidation of U(IV) dispersed in the saturated zone, 4) Influx of natural background U(VI) from upgradient groundwater, and 5) Dispersal of U from residual tailings remaining at the site. We are currently quantifying the contribution of each of these sources of U and have focused on sources 1) and 2) above. Data collected in early summer 2011 during the highest and most sustained runoff in the Colorado River (adjacent to the site) since 1984 indicate that the vadose zone constitutes a relative minor contributor of U to the plume. In contrast, persistently high Fe(II) concentrations in alluvial aquifers at former uranium mill sites suggest that natural reduction may be a common feature of alluvial aquifers similar to the one at Rifle. One NRZ at Rifle contains up to 50 times more U than the typical alluvial sediment at the site. While speciation is likely to be an important control on the release of uranium from NRZ's to groundwater, other factors may be equally important, including redox-poising constituents and permeability interfaces along boundaries of NRZ's, which give rise to diffusion-limited reaction rates. In addition to U, NRZ's contain elevated concentrations of NOM, Fe(II) and reduced inorganic sulfides, all of which can scavenge oxidants introduced following seasonal incursion of (sub)oxic groundwater, promoting retention of U(IV). Consideration of factors controlling the evolution of NRZ's suggests that defining "biogeofacies" in contaminated aquifers may be useful in predicting contaminant mobility and persistence of redox-sensitive metals in groundwater. JF - Abstracts with Programs - Geological Society of America AU - Long, Philip E AU - Williams, Kenneth H AU - Peacock, Aaron D AU - Bargar, John R AU - Bush, Richard P AU - Davis, James A AU - Fox, Patricia M AU - Hatfield, Kirk AU - Newman, Mark A AU - Campbell, Kate M AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 230 EP - 231 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - plumes KW - mine waste KW - Garfield County Colorado KW - pollutants KW - pollution KW - environmental analysis KW - radioactive waste KW - ground water KW - environmental management KW - waste management KW - Rifle Colorado KW - metals KW - uranium KW - waste disposal KW - Colorado KW - water pollution KW - tailings KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Unpredicted+persistence+of+a+uranium+plume+at+a+former+mill+tailings+site+in+Rifle%2C+Colorado%3B+evidence+for+multiple+sources+of+uranium&rft.au=Long%2C+Philip+E%3BWilliams%2C+Kenneth+H%3BPeacock%2C+Aaron+D%3BBargar%2C+John+R%3BBush%2C+Richard+P%3BDavis%2C+James+A%3BFox%2C+Patricia+M%3BHatfield%2C+Kirk%3BNewman%2C+Mark+A%3BCampbell%2C+Kate+M%3BAnonymous&rft.aulast=Long&rft.aufirst=Philip&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_194346.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; Colorado; environmental analysis; environmental management; Garfield County Colorado; ground water; metals; mine waste; plumes; pollutants; pollution; radioactive waste; Rifle Colorado; tailings; United States; uranium; waste disposal; waste management; water pollution ER - TY - JOUR T1 - Persistence of uranium groundwater plumes; contrasting mechanisms at two contaminated DOE sites AN - 1011394089; 2012-045406 AB - We examine subsurface uranium (U) plumes at two U.S. Department of Energy sites located near large river systems. Following excavation of contaminated materials, both sites were projected to naturally flush remnant uranium contamination to levels below regulatory limits (e.g., 30 mu g/L), within 10 years at the Hanford 300 Area (Columbia River) and 12 years at the Rifle site (Colorado River). The observed rate of attenuation was much lower than expected at both sites. Current understanding suggests that the two sites have common, but also differing mechanisms controlling plume persistence. At Hanford, the persistent source is adsorbed U(VI) in the deep vadose zone, released to the aquifer during water table excursions associated with spring high-water in the Columbia River. The release of U(VI) from the vadose zone and its transport within the oxic, coarse-textured aquifer sediments is dominated by kinetically-limited surface complexation. While the U sources sustaining the plume at the Rifle site are multiple, there is evidence that slow oxidation of naturally reduced contaminant U(IV) in the saturated zone, as well as a continuous influx of natural U(VI) from up-gradient sources, is important. Equilibrium surface complexation controls the U(VI) migration rate in the sub-oxic Rifle groundwater. Microbiologic activity is diverse at both sites. Strains of Geobacter and other metal reducing bacteria are present, typically at low natural abundance, capable of enzymatic U(VI) reduction in localized zones of accumulated detrital organic carbon, or after organic carbon amendment. Major differences between the sites include the geochemical nature of residual contaminant U; the nature of mineral adsorbents and the rates of kinetic processes (biotic and abiotic) influencing U(VI) solid-liquid distribution; the presence of detrital organic matter and the spatial heterogeneity in microbially-driven redox properties; and the magnitude of groundwater hydrologic dynamics controlled by river-stage fluctuations and aquifer properties (e.g., hydraulic gradient and conductivity). The comparative analysis of these sites provides important guidance to the characterization, modeling, and remediation of groundwater contaminant plumes influenced by surface water interaction that are common worldwide. JF - Abstracts with Programs - Geological Society of America AU - Zachara, John AU - Davis, James A AU - Long, Philip E AU - Williams, Kenneth H AU - Freshley, Mark AU - McKinley, James P AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 230 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - plumes KW - Garfield County Colorado KW - unsaturated zone KW - Grant County Washington KW - environmental analysis KW - radioactive waste KW - ground water KW - environmental management KW - Colorado River KW - waste management KW - Rifle Colorado KW - water pollution KW - Washington KW - pollutants KW - Columbia River KW - surface water KW - pollution KW - Hanford Site KW - metals KW - uranium KW - waste disposal KW - Colorado KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Persistence+of+uranium+groundwater+plumes%3B+contrasting+mechanisms+at+two+contaminated+DOE+sites&rft.au=Zachara%2C+John%3BDavis%2C+James+A%3BLong%2C+Philip+E%3BWilliams%2C+Kenneth+H%3BFreshley%2C+Mark%3BMcKinley%2C+James+P%3BAnonymous&rft.aulast=Zachara&rft.aufirst=John&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_197077.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; Colorado; Colorado River; Columbia River; environmental analysis; environmental management; Garfield County Colorado; Grant County Washington; ground water; Hanford Site; metals; plumes; pollutants; pollution; radioactive waste; Rifle Colorado; surface water; United States; unsaturated zone; uranium; Washington; waste disposal; waste management; water pollution ER - TY - JOUR T1 - Spectroscopic insights on U(IV) species in biologically reduced sediments at the Old Rifle Aquifer AN - 1011394085; 2012-045405 AB - The chemical and physical forms of U(IV), as well as the biogeochemical processes by which they form and transform, are believed to profoundly influence the behavior and persistence of uranium in contaminated groundwater. In this study, the reduction of U(IV) was examined during acetate-stimulated bioreduction in the Old Rifle Aquifer. We have developed an in-situ technique for studying U(IV) products of biological U(VI) reduction and their dynamics in aquifers over the scale of days to years. This technique uses in-well columns to obtain direct access to sediment U(IV) species, evolving microbial communities, and trace and major ion groundwater constituents. Whole sediments from these in-situ columns have been examined using X-ray and electron microscopy, and X-ray absorption spectroscopy. EXAFS measurements revealed that U(IV) was primarily oxygen coordinated and monomeric U(IV) complexes were the primary products. Furthermore, different reduced U(IV) products were observed during sulfate and Fe reducing regimes, showing the strong dependence of the reduced product on biogeochemical conditions. This work establishes the importance of non-uraninite forms in subsurface sediments at the Rifle site and provides a conceptual framework in which previously observed U(IV) reduction products can be related. These experiments also establish that U(IV) species are dynamic in aquifers and can undergo non-oxidative transformation reactions. These insights provide a starting point for understanding uranium behavior in naturally reduced zones. JF - Abstracts with Programs - Geological Society of America AU - Lezama Pacheco, Juan S AU - Bargar, John R AU - Bernier-Latmani, Rizlan AU - Suvorova, Elena I AU - Williams, Kenneth H AU - Long, Philip E AU - Giammar, Daniel E AU - Davis, James A AU - Stubbs, Joanne E AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 230 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - hydrology KW - esters KW - acetates KW - Garfield County Colorado KW - biochemistry KW - Old Rifle Aquifer KW - ground water KW - aquifers KW - Rifle Colorado KW - physical properties KW - organic compounds KW - metals KW - chemical properties KW - uranium KW - Colorado KW - actinides KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Spectroscopic+insights+on+U%28IV%29+species+in+biologically+reduced+sediments+at+the+Old+Rifle+Aquifer&rft.au=Lezama+Pacheco%2C+Juan+S%3BBargar%2C+John+R%3BBernier-Latmani%2C+Rizlan%3BSuvorova%2C+Elena+I%3BWilliams%2C+Kenneth+H%3BLong%2C+Philip+E%3BGiammar%2C+Daniel+E%3BDavis%2C+James+A%3BStubbs%2C+Joanne+E%3BAnonymous&rft.aulast=Lezama+Pacheco&rft.aufirst=Juan&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_197684.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acetates; actinides; aquifers; biochemistry; chemical properties; Colorado; esters; Garfield County Colorado; ground water; hydrology; metals; Old Rifle Aquifer; organic compounds; physical properties; Rifle Colorado; United States; uranium ER - TY - JOUR T1 - Proteogenomics; understanding microbial community function during uranium bioremediation AN - 1011394081; 2012-045404 AB - While it is known that indigenous microbial communities can be stimulated to transform and remediate a range of environmental contaminants through carbon substrate amendment, community response can be complex. Recent advancements in genomic sequencing technologies make it possible to couple community genomics (metagenomics) with proteomics to assess whole community function and better inform bioremediation strategies. Current research at the Rifle IFRC site aims to highlight this point. Proteogenomic analyses of groundwater and sediment communities during acetate stimulated Fe(III), sulfate and uranium reduction, has yielded new insights into biogeochemical cycling, and the function of multiple novel taxa. Near-complete and partial bacterial genomes were reconstructed from metagenomic data generated using 454 and Illumina platforms. Proteomes were analyzed using liquid chromatography-mass spectrometry, and spectra were searched against peptides predicted from genomic sequences. Communities enriched during Fe(III) reduction contained Geobacter spp., uncultivated candidate divisions (e.g. BD1-5, OD1, OP11), Proteoboacteria, Bacteriodetes, Chloroflexi and Spirochaetes. While Geobacter are well characterized Fe(III) and U(VI) reducers, genomics suggest the other novel bacteria are capable of acetate utilization, glycolysis, anaerobic fermentation, and sulfite and nitrate reduction. Peptides also revealed use of an alternate genetic code by candidate division BD1-5. In comparison, analysis of Desulfobacter- (FC09-1), Sulfurovum- (FC09-2) and Sulfurimonas-like (FC09-3) organisms that dominate the sulfate-reducing community, revealed the expression of proteins used in sulfate reduction (Dsr and APS) and nitrogen-fixation (Nif) by FC09-1, and nitrate, nitrite, and nitrous oxide reduction (Nap, Nir, and Nos) and the sulfur oxidation (Sox proteins) by FC09-2 and FC09-3. These results indicate a feedback loop between sulfate reduction and nitrate-dependent sulfur oxidation. As such, including geochemical characterizations of these processes in future experimental designs at the site would likely improve geochemical models. Sulfur oxidation may also have implications for uranium mobility post-reduction owing to spatial association of U(IV) with sulfide minerals. JF - Abstracts with Programs - Geological Society of America AU - Handley, Kim M AU - Wrighton, Kelly C AU - Wilkins, Michael J AU - Williams, Kenneth H AU - VerBerkmoes, Nathan C AU - Thomas, Brian C AU - Sharon, Itai AU - Hettich, Robert AU - Long, Philip E AU - Banfield, Jill F AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 230 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - esters KW - acetates KW - pollutants KW - oxidation KW - pollution KW - bioremediation KW - genome KW - remediation KW - radioactive waste KW - ground water KW - genetics KW - waste management KW - organic compounds KW - metals KW - sediments KW - uranium KW - waste disposal KW - water pollution KW - actinides KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Proteogenomics%3B+understanding+microbial+community+function+during+uranium+bioremediation&rft.au=Handley%2C+Kim+M%3BWrighton%2C+Kelly+C%3BWilkins%2C+Michael+J%3BWilliams%2C+Kenneth+H%3BVerBerkmoes%2C+Nathan+C%3BThomas%2C+Brian+C%3BSharon%2C+Itai%3BHettich%2C+Robert%3BLong%2C+Philip+E%3BBanfield%2C+Jill+F%3BAnonymous&rft.aulast=Handley&rft.aufirst=Kim&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=230&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_197855.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acetates; actinides; bioremediation; esters; genetics; genome; ground water; metals; microorganisms; organic compounds; oxidation; pollutants; pollution; radioactive waste; remediation; sediments; uranium; waste disposal; waste management; water pollution ER - TY - JOUR T1 - Calcium isotope fractionations in vertebrates from modern and fossil ecosystems AN - 1011393967; 2012-045121 AB - Calcium isotope composition of vertebrate animal bioapatite is thought to be largely controlled by diet. Though a number of vertebrate samples have been analyzed for calcium isotope values, careful, systematic studies of terrestrial ecosystems are lacking. In order to better understand how trophic level and diagenesis potentially affect calcium isotope values in vertebrate tissues, we analyze samples from modern and Miocene fossil ecosystems that are well characterized in terms of other isotope systems (e.g., carbon). We pair large-bodied carnivorans and herbivorous mammals ranging from approximately 10 kg to >1000 kg from these study areas to examine trophic level effects. We also pair bone and tooth samples from individuals to assess potential diagenetic alteration. Samples were dissolved in HF and HNO (sub 3) . in preparation for analysis. A calcium double spike of known isotopic composition was added to each sample solution, which was then passed through an ion exchange resin column for purification and isolation of calcium. Each purified sample was analyzed in duplicate by thermal ionization mass spectrometry and corrected for instrumental mass fractionation by calculations using the double spike. Initial results indicate that carnivores show consistently lower calcium isotope values when compared to herbivores, confirming intra-ecosystem trophic level effects. Though tooth and bone pairs show significant offsets in some cases, the magnitude of diagenetic effects is not immediately obvious. Calcium isotope values from bones and teeth may be providing slightly different information about an individual's calcium physiology or the two tissues may be affected differently by other biological processes and/or timing of life history events. JF - Abstracts with Programs - Geological Society of America AU - Wheatley, Patrick V AU - Hofmann, Amy E AU - Holroyd, Patricia A AU - Goodwin, Mark B AU - Brown, Shaun T AU - Anonymous Y1 - 2011/10// PY - 2011 DA - October 2011 SP - 162 PB - Geological Society of America (GSA), Boulder, CO VL - 43 IS - 5 SN - 0016-7592, 0016-7592 KW - apatite KW - isotope fractionation KW - Chordata KW - isotopes KW - ecosystems KW - phosphates KW - teeth KW - stable isotopes KW - Miocene KW - C-14/C-12 KW - paleoecology KW - Cenozoic KW - Tertiary KW - biogenic processes KW - radioactive isotopes KW - Neogene KW - carbon KW - bones KW - ecology KW - Vertebrata KW - 11:Vertebrate paleontology KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011393967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Calcium+isotope+fractionations+in+vertebrates+from+modern+and+fossil+ecosystems&rft.au=Wheatley%2C+Patrick+V%3BHofmann%2C+Amy+E%3BHolroyd%2C+Patricia+A%3BGoodwin%2C+Mark+B%3BBrown%2C+Shaun+T%3BAnonymous&rft.aulast=Wheatley&rft.aufirst=Patrick&rft.date=2011-10-01&rft.volume=43&rft.issue=5&rft.spage=162&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2011AM/finalprogram/abstract_196783.htm LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2011 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - apatite; biogenic processes; bones; C-14/C-12; carbon; Cenozoic; Chordata; ecology; ecosystems; isotope fractionation; isotopes; Miocene; Neogene; paleoecology; phosphates; radioactive isotopes; stable isotopes; teeth; Tertiary; Vertebrata ER - TY - JOUR T1 - A coupled THC model of the FEBEX in situ test with bentonite swelling and chemical and thermal osmosis AN - 911159538; 15936679 AB - The performance assessment of a geological repository for radioactive waste requires quantifying the geochemical evolution of the bentonite engineered barrier. This barrier will be exposed to coupled thermal (T), hydrodynamic (H), mechanical (M) and chemical (C) processes. This paper presents a coupled THC model of the FEBEX (Full-scale Engineered Barrier EXperiment) in situ test which accounts for bentonite swelling and chemical and thermal osmosis. Model results attest the relevance of thermal osmosis and bentonite swelling for the geochemical evolution of the bentonite barrier while chemical osmosis is found to be almost irrelevant. The model has been tested with data collected after the dismantling of heater 1 of the in situ test. The model reproduces reasonably well the measured temperature, relative humidity, water content and inferred geochemical data. However, it fails to mimic the solute concentrations at the heater-bentonite and bentonite-granite interfaces because the model does not account for the volume change of bentonite, the CO2(g) degassing and the transport of vapor from the bentonite into the granite. The inferred HCO3- and pH data cannot be explained solely by solute transport, calcite dissolution and protonation/deprotonation by surface complexation, suggesting that such data may be affected also by other reactions. JF - Journal of Contaminant Hydrology AU - Zheng, Liange AU - Samper, Javier AU - Montenegro, Luis AD - Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA, 94720, USA, lzheng@lbl.gov Y1 - 2011/09/25/ PY - 2011 DA - 2011 Sep 25 SP - 45 EP - 60 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 126 IS - 1-2 SN - 0169-7722, 0169-7722 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Aqualine Abstracts; Pollution Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - THC model KW - Bentonite KW - FEBEX in situ KW - Nuclear waste KW - Osmosis KW - Bentonite swelling KW - Relative humidity KW - Barriers KW - Hydrodynamics KW - Performance assessment KW - Relative Humidity KW - Volume transport KW - Solutes KW - Vapors KW - Hydrologic Models KW - Assessments KW - Calcite dissolution KW - Geology KW - In Situ Tests KW - degassing KW - bentonite KW - Geochemistry KW - Temperature KW - Radioactive wastes KW - Humidity KW - Solute Transport KW - Hazardous wastes KW - SW 5010:Network design KW - M2 556:General (556) KW - AQ 00006:Sewage KW - P 2000:FRESHWATER POLLUTION KW - Q5 08502:Methods and instruments KW - Q2 09265:Sedimentary structures and stratigraphy KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911159538?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=A+coupled+THC+model+of+the+FEBEX+in+situ+test+with+bentonite+swelling+and+chemical+and+thermal+osmosis&rft.au=Zheng%2C+Liange%3BSamper%2C+Javier%3BMontenegro%2C+Luis&rft.aulast=Zheng&rft.aufirst=Liange&rft.date=2011-09-25&rft.volume=126&rft.issue=1-2&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2011.06.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Relative humidity; Solutes; Barriers; Calcite dissolution; Radioactive wastes; Performance assessment; Bentonite; Volume transport; Osmosis; Hydrodynamics; Vapors; bentonite; Geochemistry; Humidity; Geology; Hazardous wastes; degassing; Hydrologic Models; Assessments; Solute Transport; Temperature; In Situ Tests; Relative Humidity DO - http://dx.doi.org/10.1016/j.jconhyd.2011.06.003 ER - TY - JOUR T1 - Geophysical monitoring and reactive transport modeling of ureolytically-driven calcium carbonate precipitation AN - 1832630673; 704102-1 AB - Ureolytically-driven calcium carbonate precipitation is the basis for a promising in-situ remediation method for sequestration of divalent radionuclide and trace metal ions. It has also been proposed for use in geotechnical engineering for soil strengthening applications. Monitoring the occurrence, spatial distribution, and temporal evolution of calcium carbonate precipitation in the subsurface is critical for evaluating the performance of this technology and for developing the predictive models needed for engineering application. In this study, we conducted laboratory column experiments using natural sediment and groundwater to evaluate the utility of geophysical (complex resistivity and seismic) sensing methods, dynamic synchrotron x-ray computed tomography (micro-CT), and reactive transport modeling for tracking ureolytically-driven calcium carbonate precipitation processes under site relevant conditions. Reactive transport modeling with TOUGHREACT successfully simulated the changes of the major chemical components during urea hydrolysis. Even at the relatively low level of urea hydrolysis observed in the experiments, the simulations predicted an enhanced calcium carbonate precipitation rate that was 3-4 times greater than the baseline level. Reactive transport modeling results, geophysical monitoring data and micro-CT imaging correlated well with reaction processes validated by geochemical data. In particular, increases in ionic strength of the pore fluid during urea hydrolysis predicted by geochemical modeling were successfully captured by electrical conductivity measurements and confirmed by geochemical data. The low level of urea hydrolysis and calcium carbonate precipitation suggested by the model and geochemical data was corroborated by minor changes in seismic P-wave velocity measurements and micro-CT imaging; the latter provided direct evidence of sparsely distributed calcium carbonate precipitation. Ion exchange processes promoted through NH4 + production during urea hydrolysis were incorporated in the model and captured critical changes in the major metal species. The electrical phase increases were potentially due to ion exchange processes that modified charge structure at mineral/water interfaces. Our study revealed the potential of geophysical monitoring for geochemical changes during urea hydrolysis and the advantages of combining multiple approaches to understand complex biogeochemical processes in the subsurface. JF - Geochemical Transactions AU - Wu, Yuxin AU - Ajo-Franklin, Jonathan B AU - Spycher, Nicolas AU - Hubbard, Susan S AU - Zhang, Guoxiang AU - Williams, Kenneth H AU - Taylor, Joanna AU - Fujita, Yoshiko AU - Smith, Robert Y1 - 2011/09/23/ PY - 2011 DA - 2011 Sep 23 SP - 20 PB - Springer for Royal Society of Chemistry, London VL - 12 IS - 7 SN - 1467-4866, 1467-4866 KW - tomography KW - P-waves KW - isotopes KW - ammonium ion KW - elastic waves KW - remediation KW - radioactive waste KW - radioactive isotopes KW - urea KW - transport KW - reactive transport KW - calcium carbonate KW - ion exchange KW - trace elements KW - body waves KW - monitoring KW - organic minerals KW - geophysical methods KW - electrical methods KW - resistivity KW - models KW - biogenic processes KW - computed tomography KW - ureolysis KW - seismic waves KW - carbonates KW - pore water KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832630673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochemical+Transactions&rft.atitle=Geophysical+monitoring+and+reactive+transport+modeling+of+ureolytically-driven+calcium+carbonate+precipitation&rft.au=Wu%2C+Yuxin%3BAjo-Franklin%2C+Jonathan+B%3BSpycher%2C+Nicolas%3BHubbard%2C+Susan+S%3BZhang%2C+Guoxiang%3BWilliams%2C+Kenneth+H%3BTaylor%2C+Joanna%3BFujita%2C+Yoshiko%3BSmith%2C+Robert&rft.aulast=Wu&rft.aufirst=Yuxin&rft.date=2011-09-23&rft.volume=12&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geochemical+Transactions&rft.issn=14674866&rft_id=info:doi/10.1186%2F1467-4866-12-7 L2 - http://www.geochemicaltransactions.com/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 55 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - ammonium ion; biogenic processes; body waves; calcium carbonate; carbonates; computed tomography; elastic waves; electrical methods; geophysical methods; ion exchange; isotopes; models; monitoring; organic minerals; P-waves; pore water; radioactive isotopes; radioactive waste; reactive transport; remediation; resistivity; seismic waves; tomography; trace elements; transport; urea; ureolysis DO - http://dx.doi.org/10.1186/1467-4866-12-7 ER - TY - JOUR T1 - VISTA Region Viewer (RViewer)-a computational system for prioritizing genomic intervals for biomedical studies AN - 915485949; 16101656 AB - Summary: Current genome browsers are designed for linear browsing of individual genomic regions, but the high-throughput nature of experiments aiming to elucidate the genetic component of human disease makes it very important to develop user-friendly tools for comparing several genomic regions in parallel and prioritizing them based on their functional content. We introduce VISTA Region Viewer (RViewer), an interactive online tool that allows for efficient screening and prioritization of regions of the human genome for follow-up studies. The tool takes as input genetic variation data from different biomedical studies, determines a number of various functional parameters for both coding and non-coding sequences in each region and allows for sorting and searching the results of the analysis in multiple ways. JF - Bioinformatics AU - Lukashin, Igor AU - Novichkov, Pavel AU - Boffelli, Dario AU - Paciorkowski, Alex R AU - Minovitsky, Simon AU - Yang, Song AU - Dubchak, Inna AD - super(1)Genomics Division and super(2)Physical Biosciences Division, Lawrence Berkeley National Laboratory, MS 84-171, Berkeley, CA 94720, super(3)Center for Genetics, Children's Hospital Oakland Research Institute, Oakland, CA 94609, super(4)Department of Neurology, University of Washington and Seattle Children's Research Institute, Seattle, WA 98101 and super(5)DOE Joint Genome Institute, Walnut Creek, CA 94598, USA, Y1 - 2011/09/15/ PY - 2011 DA - 2011 Sep 15 SP - 2595 EP - 2597 PB - Oxford University Press, Great Clarendon Street Oxford OX2 6DP United Kingdom VL - 27 IS - 18 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts KW - Genomes KW - Data processing KW - Browsing KW - Genetic diversity KW - genomics KW - Bioinformatics KW - Computer applications KW - Internet KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/915485949?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=VISTA+Region+Viewer+%28RViewer%29-a+computational+system+for+prioritizing+genomic+intervals+for+biomedical+studies&rft.au=Lukashin%2C+Igor%3BNovichkov%2C+Pavel%3BBoffelli%2C+Dario%3BPaciorkowski%2C+Alex+R%3BMinovitsky%2C+Simon%3BYang%2C+Song%3BDubchak%2C+Inna&rft.aulast=Lukashin&rft.aufirst=Igor&rft.date=2011-09-15&rft.volume=27&rft.issue=18&rft.spage=2595&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/10.1093%2Fbioinformatics%2Fbtr440 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Genomes; Data processing; Browsing; Genetic diversity; Bioinformatics; genomics; Computer applications; Internet DO - http://dx.doi.org/10.1093/bioinformatics/btr440 ER - TY - JOUR T1 - Impact of climate change on groundwater recharge in dry areas: An ecohydrology approach AN - 899149517; 15619657 AB - This work proposes an ecohydrology-based approach to study the impact of climate change on groundwater recharge in dry areas. It is largely based on a concept that in dry areas, vegetation community can be divided into two different groups, shallow- and deep-rooted vegetation, with the growing-season average of root-zone soil water saturation tending to be at its optimum value for the growth of deep-rooted vegetation. The concept is supported by data sets collected from different dry areas. Analytical results of soil water dynamics developed in previous studies are adapted here for investigating the impact of climate change. Because the conceptual model allows deep-zone soil-water saturation, averaged over growing seasons, to remain fixed during different climate conditions, we can construct a relationship among groundwater recharge, the coverage of deep-rooted vegetation, and climate. As an illustrative example, we apply the developed approach to the Yucca Mountain area. Our estimated recharge value under the current climate and the vegetation coverage is generally consistent with results estimated from other methods or observed from the site. We also evaluate how the recharge will change under several assumed future climate scenarios. The results show that both groundwater recharge and deep-rooted vegetation coverage increase with decreasing rainfall frequency (for a given amount of annual rainfall), with increasing average rainfall depth per rainfall event (for a fixed frequency) and with increasing frequency (for a fixed rainfall depth per rainfall event). The latter indicates a relatively large degree of buffering effects of vegetation on changes in groundwater recharge. JF - Journal of Hydrology (Amsterdam) AU - Liu, Hui-Hai Y1 - 2011/09/15/ PY - 2011 DA - 2011 Sep 15 SP - 175 EP - 183 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 407 IS - 1-4 SN - 0022-1694, 0022-1694 KW - Environment Abstracts; Aqualine Abstracts; Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts; Pollution Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - Groundwater hydrology KW - USA, Nevada, Yucca Mt. KW - Rainfall KW - Climate change KW - Soil Water KW - Soil KW - Mountains KW - Climate and vegetation KW - Groundwater recharge KW - Growth KW - Hydrologic Models KW - Ground water KW - Hydrology KW - Annual rainfall KW - groundwater recharge KW - Growing season KW - Plant Growth KW - Climates KW - Environmental impact KW - Vegetation KW - Saturation KW - Ecosystem disturbance KW - Groundwater pollution KW - Soil moisture KW - Groundwater Recharge KW - Future climates KW - AQ 00001:Water Resources and Supplies KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - ENA 15:Renewable Resources-Terrestrial KW - SW 0815:Precipitation KW - Q2 09244:Air-sea coupling KW - M2 556.14:Infiltration/Soil Moisture (556.14) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899149517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Impact+of+climate+change+on+groundwater+recharge+in+dry+areas%3A+An+ecohydrology+approach&rft.au=Liu%2C+Hui-Hai&rft.aulast=Liu&rft.aufirst=Hui-Hai&rft.date=2011-09-15&rft.volume=407&rft.issue=1-4&rft.spage=175&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2011.07.024 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Number of references - 1 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Growth; Climate change; Ground water; Environmental impact; Hydrology; Ecosystem disturbance; Climate and vegetation; Annual rainfall; Groundwater hydrology; Groundwater recharge; Growing season; Groundwater pollution; Soil moisture; Future climates; Mountains; Soil; groundwater recharge; Rainfall; Vegetation; Hydrologic Models; Plant Growth; Climates; Soil Water; Saturation; Groundwater Recharge; USA, Nevada, Yucca Mt. DO - http://dx.doi.org/10.1016/j.jhydrol.2011.07.024 ER - TY - JOUR T1 - A comparative study of polyacrylic acid and poly(vinylidene difluoride) binders for spherical natural graphite/LiFePO sub(4 electrodes and cells) AN - 879477809; 15120005 AB - Anodes containing spherical natural graphite (SNG12) and cathodes containing LiFePO sub(4, both from HydroQuebec, were prepared with aqueous-based polyacrylic acid (PAAH), its neutralized derivatives polyacrylic acid (PAAX) (X = Li, Na, and K), and with conventional poly(vinylidene difluoride) (PVDF) binders. A comparison of electrode performance was made between these three binder systems. The electrodes were optimized by adding elastic styrene butadiene rubber (SBR) and conductive vapor grown carbon fiber (VGCF) in the place of some of the PAAX. Initially, SNG12 and LiFePO) sub(4) electrodes were characterized in half cells with Li as the counter electrode. The electrochemistry results show that the use of PAAX binders can significantly improve the initial coulombic efficiency, reversible capacity, and cyclability of SNG12 anodes and LiFePO sub(4 cathodes as compared to that of electrodes based on a PVDF binder. By using an optimized composition for the anode and cathode, SNG12/LiFePO) sub(4) full cells with PAALi binder cycled 847 times with 70% capacity retention, which was a significant improvement over the electrodes with PVDF (223 cycles). This study demonstrates the possibility of manufacturing Li-ion batteries that cycle longer and use water in the processing, instead of hazardous organic solvents like NMP, thereby improving performance, reducing cost, and protecting the environment. JF - Journal of Power Sources AU - Chong, Jin AU - Xun, Shidi AU - Zheng, Honghe AU - Song, Xiangyun AU - Liu, Gao AU - Ridgway, Paul AU - Wang, Ji Qiang AU - Battaglia, Vincent S AD - Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, sxun@lbl.gov Y1 - 2011/09/15/ PY - 2011 DA - 2011 Sep 15 SP - 7707 EP - 7714 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 196 IS - 18 SN - 0378-7753, 0378-7753 KW - Environment Abstracts; Sustainability Science Abstracts KW - Spherical natural graphite KW - LiFePO4 KW - Aqueous based binder KW - Lithium-ion batteries KW - Styrene KW - Vapors KW - comparative studies KW - Batteries KW - Electrodes KW - Solvents KW - Electrochemistry KW - Environmental protection KW - M3 1010:Issues in Sustainable Development KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/879477809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=A+comparative+study+of+polyacrylic+acid+and+poly%28vinylidene+difluoride%29+binders+for+spherical+natural+graphite%2FLiFePO+sub%284+electrodes+and+cells%29&rft.au=Chong%2C+Jin%3BXun%2C+Shidi%3BZheng%2C+Honghe%3BSong%2C+Xiangyun%3BLiu%2C+Gao%3BRidgway%2C+Paul%3BWang%2C+Ji+Qiang%3BBattaglia%2C+Vincent+S&rft.aulast=Chong&rft.aufirst=Jin&rft.date=2011-09-15&rft.volume=196&rft.issue=18&rft.spage=7707&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2011.04.043 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Styrene; Vapors; Batteries; comparative studies; Electrodes; Solvents; Electrochemistry; Environmental protection DO - http://dx.doi.org/10.1016/j.jpowsour.2011.04.043 ER - TY - JOUR T1 - A novel CuFe-based catalyst for the oxygen reduction reaction in alkaline media AN - 1777127753; 15119984 AB - The primary objective of this work is to develop alternative electrocatalysts to Pt-based materials for the oxygen reduction reaction (ORR) in alkaline fuel cells. We synthesized a bicore CuFe/C composite electrocatalyst by impregnation of iron and copper phthalocyanine-based complexes into a carbon support, followed by pyrolysis at 800-900 [deg]C in an Ar atmosphere. This novel composite catalyst exhibits electrochemical performance for ORR in 0.1 M KOH similar to a commercial Pt/C (BASF Fuel Cell, 30%) catalyst at 6-fold lower CuFe loading. High resolution X-ray photoelectron spectroscopy (HR-XPS) results indicate that coordination bonding between Fe and N atoms still remains and show that a mixed Cu(I)/Cu(II) valency exists in the CuFe/C catalyst after high temperature heat treatment. The Cu(I)/Cu(II) redox mediator adjacent to Fe atoms is crucial to provide electrons to the N sub(xFe-O) sub(2) adduct and maximize the overall rate of the reduction reaction. The results of this study may offer a new approach to development of efficient catalysts for oxygen reduction to water in alkaline media. JF - Journal of Power Sources AU - He, Qinggang AU - Yang, Xiaofang AU - Ren, Xiaoming AU - Koel, Bruce E AU - Ramaswamy, Nagappan AU - Mukerjee, Sanjeev AU - Kostecki, Robert AD - Lawrence Berkeley National Laboratory, Environmental Energy Technology Division, 1 Cyclotron Road, Berkeley, CA 94720, USA Y1 - 2011/09/15/ PY - 2011 DA - 2011 Sep 15 SP - 7404 EP - 7410 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 196 IS - 18 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); Copper Technical Reference Library (CD) KW - Alkaline fuel cell KW - Oxygen reduction reaction KW - Non-noble electrocatalyst KW - CuFe KW - CATALYSTS KW - FUEL CELLS KW - Media KW - COMPOSITES KW - CU KW - FE KW - Fuel cells KW - COPPER PHTHALOCYANINE KW - PT KW - Reduction KW - Carbon KW - Platinum KW - REDUCTION KW - Catalysts KW - OXYGEN KW - Electrocatalysts KW - Iron UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777127753?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=A+novel+CuFe-based+catalyst+for+the+oxygen+reduction+reaction+in+alkaline+media&rft.au=He%2C+Qinggang%3BYang%2C+Xiaofang%3BRen%2C+Xiaoming%3BKoel%2C+Bruce+E%3BRamaswamy%2C+Nagappan%3BMukerjee%2C+Sanjeev%3BKostecki%2C+Robert&rft.aulast=He&rft.aufirst=Qinggang&rft.date=2011-09-15&rft.volume=196&rft.issue=18&rft.spage=7404&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2011.04.016 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jpowsour.2011.04.016 ER - TY - JOUR T1 - Impact of CO sub(2) geological sequestration on the nucleation of earthquakes AN - 1671479737; 16006900 AB - CO2 sequestration and earthquakes Seismic fault rupture Coupled hydromechanical modeling Can CO2 storage cause earthquakes? What is the maximum possible earthquake magnitude resulting from CO2 injection? Here, as a theoretical case study we investigate these questions using coupled hydromechanical modeling with multiphase flow and seismological variables for quantifying earthquake magnitude and energy. Our simulations consider transient fluid flow and stress coupling, and the evolution of fault properties. We simulate CO2 injection into a reservoir-caprock system bounded by a subvertical normal fault subjected to different extensional stress regimes and over a range of initial fault permeability values. For our assumed system and injection rate, the simulation results show that sudden stress drop and fault slip primarily initiated along the fault portion intersecting the storage reservoir after a few months of injection when a sufficiently high reservoir pressure has been reached. The size of the rupture area, and consequently, the earthquake magnitude and energy, depends on initial horizontal-to-vertical stress ratio and fault permeability, which strongly influences the size of the pressurized area, and subsequent stress variations. JF - Geophysical Research Letters AU - Cappa, Frederic AU - Rutqvist, Jonny AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA Y1 - 2011/09/15/ PY - 2011 DA - 2011 Sep 15 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 38 IS - 17 SN - 0094-8276, 0094-8276 KW - Earthquake Engineering Abstracts (EQ); Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - 1822 Hydrology: Geomechanics KW - 7209 Seismology: Earthquake dynamics KW - 8004 Structural Geology: Dynamics and mechanics of faulting KW - 8010 Structural Geology: Fractures and faults KW - 8045 Structural Geology: Role of fluids KW - CO2 KW - earthquakes KW - fault KW - flow KW - hydromechanics KW - rupture KW - Earthquakes KW - Mathematical models KW - Computer simulation KW - Seismic phenomena KW - Faults KW - Stresses KW - Carbon dioxide KW - Reservoirs UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671479737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Impact+of+CO+sub%282%29+geological+sequestration+on+the+nucleation+of+earthquakes&rft.au=Cappa%2C+Frederic%3BRutqvist%2C+Jonny&rft.aulast=Cappa&rft.aufirst=Frederic&rft.date=2011-09-15&rft.volume=38&rft.issue=17&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL048487 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-04-01 N1 - Number of references - 20 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1029/2011GL048487 ER - TY - JOUR T1 - Analytical solutions of tracer transport in fractured rock associated with precipitation-dissolution reactions TT - Solutions analytiques au transport de traceur dans une roche fracturee associe a des reactions de precipitation-dissolution AN - 911154577; 16009545 AB - Precipitation-dissolution reactions are important for a number of applications such as isotopic tracer transport in the subsurface. Analytical solutions have been developed for tracer transport in both single-fracture and multiple-fracture systems associated with these reactions under transient and steady-state transport conditions. These solutions also take into account advective transport in fractures and molecular diffusion in the rock matrix. For studying distributions of disturbed tracer concentration (the difference between actual concentration and its equilibrium value), effects of precipitation-dissolution reactions are mathematically equivalent to a "decay" process with a decay constant proportional to the corresponding bulk reaction rate. This important feature significantly simplifies the derivation procedure by taking advantage of the existence of analytical solutions for tracer transport associated with radioactive decay in fractured rock. It is also useful for interpreting tracer breakthrough curves, because the impact of a decay process is relatively easy to analyze. Several illustrative examples are presented, which show that the results are sensitive to fracture spacing, matrix diffusion coefficient (fracture surface area), and bulk reaction rate (or "decay" constant), indicating that the relevant flow and transport parameters may be estimated by analyzing tracer signals.Original Abstract: Les reactions de precipitation-dissolution sont importantes pour nombre d'applications telle le cheminement de traceur isotopique en subsurface. Des solutions analytiques ont ete developpees pour le cheminement de traceur dans des systemes a fracturation simple d'une part et multiple d'autre part, associant ces reactions en regime transitoire et en regime permanent. Ces solutions prennent aussi en compte le transport advectif dans les fractures et la diffusion moleculaire dans la matrice rocheuse. Pour l'etude les distributions des concentrations de traceur perturbees (la difference entre la concentration reelle et sa valeur moyenne), les effets des reactions de precipitation-dissolution sont mathematiquement equivalentes a un processus de "desintegration" avec une constante proportionnelle au taux de reaction resultant. Cette importante remarque simplifie considerablement la procedure de derivation, prenant en compte l'existence de solutions analytiques pour le transport de traceur associe a la desintegration radioactive dans une roche fracturee. C'est aussi utile pour interpreter les courbes resultantes de concentration, car l'incidence d'un processus de desintegration est relativement aisee a analyser. Plusieurs exemples presentes illustrent la sensibilite des resultats a l'ouverture de la fracturation, au coefficient matriciel de diffusion (aire de surface fracturee) et au taux de reaction resultant (ou constante de "desintegration"), indiquant que flux et parametres de transport consideres peuvent etre estimes en analysant le signal du traceur. JF - Hydrogeology Journal AU - Liu, Hui-Hai AU - Mukhopadhyay, Sumit AU - Spycher, Nicolas AU - Kennedy, Burton M AD - Earth Sciences Division Lawrence Berkeley National Laboratory, University of California, Berkeley, CA, USA, hhliu@lbl.gov Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 1151 EP - 1160 PB - Springer Science+Business Media, Van Godewijckstraat 30 Dordrecht 3311 GX Netherlands VL - 19 IS - 6 SN - 1431-2174, 1431-2174 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Geologic Fractures KW - Diffusion Coefficient KW - Molecular diffusion KW - Hydrogeology KW - Fractures KW - Advective transport KW - Tracers KW - Tracer transport KW - Equilibrium KW - Isotopic Tracers KW - Diffusion coefficient KW - Diffusion coefficients KW - AQ 00001:Water Resources and Supplies KW - Q2 09387:Navigation KW - M2 551.511:Mechanics and Thermodynamics of the Atmosphere (551.511) KW - SW 0840:Groundwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911154577?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Analytical+solutions+of+tracer+transport+in+fractured+rock+associated+with+precipitation-dissolution+reactions&rft.au=Liu%2C+Hui-Hai%3BMukhopadhyay%2C+Sumit%3BSpycher%2C+Nicolas%3BKennedy%2C+Burton+M&rft.aulast=Liu&rft.aufirst=Hui-Hai&rft.date=2011-09-01&rft.volume=19&rft.issue=6&rft.spage=1151&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs10040-011-0749-7 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Tracers; Molecular diffusion; Fractures; Diffusion coefficients; Advective transport; Tracer transport; Hydrogeology; Diffusion coefficient; Geologic Fractures; Diffusion Coefficient; Equilibrium; Isotopic Tracers DO - http://dx.doi.org/10.1007/s10040-011-0749-7 ER - TY - JOUR T1 - Lessons learned from bacterial transport research at the South Oyster site AN - 904457790; 2011-100747 JF - Ground Water AU - Scheibe, Timothy D AU - Hubbard, Susan S AU - Onstott, Tullis C AU - DeFlaun, Mary F AU - Anderson, Mary P AU - McCray, John Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 745 EP - 763 PB - Wiley-Blackwell on behalf of National Ground Water Association, Westerville, OH VL - 49 IS - 5 SN - 0017-467X, 0017-467X KW - United States KW - experimental studies KW - Virginia KW - contaminant plumes KW - pollutants KW - pollution KW - Northampton County Virginia KW - remediation KW - ground water KW - aquifers KW - models KW - Oyster Virginia KW - transport KW - filtration KW - bacteria KW - tracers KW - unconfined aquifers KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904457790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Lessons+learned+from+bacterial+transport+research+at+the+South+Oyster+site&rft.au=Scheibe%2C+Timothy+D%3BHubbard%2C+Susan+S%3BOnstott%2C+Tullis+C%3BDeFlaun%2C+Mary+F%3BAnderson%2C+Mary+P%3BMcCray%2C+John&rft.aulast=Scheibe&rft.aufirst=Timothy&rft.date=2011-09-01&rft.volume=49&rft.issue=5&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/10.1111%2Fj.1745-6584.2011.00831.x L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6584 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2011-01-01 N1 - Number of references - 91 N1 - PubXState - OH N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2016-09-16 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; contaminant plumes; experimental studies; filtration; ground water; models; Northampton County Virginia; Oyster Virginia; pollutants; pollution; remediation; tracers; transport; unconfined aquifers; United States; Virginia DO - http://dx.doi.org/10.1111/j.1745-6584.2011.00831.x ER - TY - JOUR T1 - Transport properties for combustion modeling AN - 901666324; 15309887 AB - This review examines current approximations and approaches that underlie the evaluation of transport properties for combustion modeling applications. Discussed in the review are: the intermolecular potential and its descriptive molecular parameters; various approaches to evaluating collision integrals; supporting data required for the evaluation of transport properties; commonly used computer programs for predicting transport properties; the quality of experimental measurements and their importance for validating or rejecting approximations to property estimation; the interpretation of corresponding states; combination rules that yield pair molecular potential parameters for unlike species from like species parameters; and mixture approximations. The insensitivity of transport properties to the intermolecular forces is noted, especially the non-uniqueness of the supporting potential parameters. Viscosity experiments of pure substances and binary mixtures measured post 1970 are used to evaluate a number of approximations; the intermediate temperature range 1 T* 10, where T* is kT/ epsilon , is emphasized since this is where rich data sets are available. When suitable potential parameters are used, errors in transport property predictions for pure non-polar substances and their binary mixtures are less than 5% when they are calculated using the approaches of Kee et al.; Mason, Kestin, and Uribe; Paul and Warnatz; or Ern and Giovangigli. Recommendations stemming from the review include (1) revisiting the supporting data required by the various computational approaches, and updating the data sets with accurate potential parameters, dipole moments, and polarizabilities; (2) characterizing the range of parameter space over which the fit to experimental data is good, rather than the current practice of reporting only the parameter set that best fits the data; (3) looking for improved combining rules, since existing rules were found to under-predict the viscosity of mixtures in most cases; (4) performing more transport property measurements for mixtures that include radical species, an important but neglected area; (5) using the TRANLIB approach for treating polar molecules; (6) continuing to evaluate whether a different parameterization is required for the intermolecular potential for T* 10; (7) performing more accurate measurements of the molecular parameters used to evaluate the molecular heat capacity and the rotational relaxation collision number, since they affect thermal conductivity; and (8) using the EGLIB approach and computer program with improved supporting data to evaluate transport properties. EGLIB uses the TRANLIB methodology for collision integral evaluation. JF - Progress in Energy and Combustion Science AU - Brown, Nancy J AU - Bastien, Lucas AJ AU - Price, Phillip N AD - Atmospheric Sciences Department, Environmental Energy Technology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94707, USA, njbrown@lbl.gov Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 565 EP - 582 PB - Elsevier B.V. VL - 37 IS - 5 SN - 0360-1285, 0360-1285 KW - Environment Abstracts KW - Transport properties KW - Combustion modeling KW - Intermolecular potential KW - Collision integrals KW - Computer programs KW - thermal conductivity KW - Reviews KW - Temperature KW - Combustion KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/901666324?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Progress+in+Energy+and+Combustion+Science&rft.atitle=Transport+properties+for+combustion+modeling&rft.au=Brown%2C+Nancy+J%3BBastien%2C+Lucas+AJ%3BPrice%2C+Phillip+N&rft.aulast=Brown&rft.aufirst=Nancy&rft.date=2011-09-01&rft.volume=37&rft.issue=5&rft.spage=565&rft.isbn=&rft.btitle=&rft.title=Progress+in+Energy+and+Combustion+Science&rft.issn=03601285&rft_id=info:doi/10.1016%2Fj.pecs.2010.12.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Computer programs; thermal conductivity; Reviews; Temperature; Combustion DO - http://dx.doi.org/10.1016/j.pecs.2010.12.001 ER - TY - JOUR T1 - Optimization of a heterologous mevalonate pathway through the use of variant HMG-CoA reductases. AN - 885909784; 21810477 AB - Expression of foreign pathways often results in suboptimal performance due to unintended factors such as introduction of toxic metabolites, cofactor imbalances or poor expression of pathway components. In this study we report a 120% improvement in the production of the isoprenoid-derived sesquiterpene, amorphadiene, produced by an engineered strain of Escherichia coli developed to express the native seven-gene mevalonate pathway from Saccharomyces cerevisiae (Martin et al. 2003). This substantial improvement was made by varying only a single component of the pathway (HMG-CoA reductase) and subsequent host optimization to improve cofactor availability. We characterized and tested five variant HMG-CoA reductases obtained from publicly available genome databases with differing kinetic properties and cofactor requirements. The results of our in vitro and in vivo analyses of these enzymes implicate substrate inhibition of mevalonate kinase as an important factor in optimization of the engineered mevalonate pathway. Consequently, the NADH-dependent HMG-CoA reductase from Delftia acidovorans, which appeared to have the optimal kinetic parameters to balance HMG-CoA levels below the cellular toxicity threshold of E. coli and those of mevalonate below inhibitory concentrations for mevalonate kinase, was identified as the best producer for amorphadiene (54% improvement over the native pathway enzyme, resulting in 2.5mM or 520 mg/L of amorphadiene after 48 h). We further enhanced performance of the strain bearing the D. acidovorans HMG-CoA reductase by increasing the intracellular levels of its preferred cofactor (NADH) using a NAD(+)-dependent formate dehydrogenase from Candida boidinii, along with formate supplementation. This resulted in an overall improvement of the system by 120% resulting in 3.5mM or 700 mg/L amorphadiene after 48 h of fermentation. This comprehensive study incorporated analysis of several key parameters for metabolic design such as in vitro and in vivo kinetic performance of variant enzymes, intracellular levels of protein expression, in-pathway substrate inhibition and cofactor management to enable the observed improvements. These metrics may be applied to a broad range of heterologous pathways for improving the production of biologically derived compounds. JF - Metabolic engineering AU - Ma, Suzanne M AU - Garcia, David E AU - Redding-Johanson, Alyssa M AU - Friedland, Gregory D AU - Chan, Rossana AU - Batth, Tanveer S AU - Haliburton, John R AU - Chivian, Dylan AU - Keasling, Jay D AU - Petzold, Christopher J AU - Lee, Taek Soon AU - Chhabra, Swapnil R AD - Joint BioEnergy Institute, Emeryville, CA, USA. Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 588 EP - 597 VL - 13 IS - 5 KW - Bacterial Proteins KW - 0 KW - Formates KW - Fungal Proteins KW - Sesquiterpenes KW - amorpha-4,11-diene KW - formic acid KW - 0YIW783RG1 KW - Hydroxymethylglutaryl-CoA Reductases, NAD-Dependent KW - EC 1.1.1.88 KW - Formate Dehydrogenases KW - EC 1.2.1.2 KW - Phosphotransferases (Alcohol Group Acceptor) KW - EC 2.7.1.- KW - mevalonate kinase KW - EC 2.7.1.36 KW - Mevalonic Acid KW - S5UOB36OCZ KW - Index Medicus KW - Sesquiterpenes -- metabolism KW - Phosphotransferases (Alcohol Group Acceptor) -- biosynthesis KW - Candida -- genetics KW - Formate Dehydrogenases -- genetics KW - Candida -- enzymology KW - Fungal Proteins -- biosynthesis KW - Formate Dehydrogenases -- biosynthesis KW - Formates -- pharmacology KW - Fungal Proteins -- genetics KW - Formates -- metabolism KW - Phosphotransferases (Alcohol Group Acceptor) -- genetics KW - Escherichia coli -- metabolism KW - Delftia acidovorans -- genetics KW - Bacterial Proteins -- genetics KW - Bacterial Proteins -- biosynthesis KW - Organisms, Genetically Modified -- metabolism KW - Organisms, Genetically Modified -- growth & development KW - Mevalonic Acid -- metabolism KW - Escherichia coli -- genetics KW - Organisms, Genetically Modified -- genetics KW - Escherichia coli -- growth & development KW - Delftia acidovorans -- enzymology KW - Hydroxymethylglutaryl-CoA Reductases, NAD-Dependent -- biosynthesis KW - Hydroxymethylglutaryl-CoA Reductases, NAD-Dependent -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885909784?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metabolic+engineering&rft.atitle=Optimization+of+a+heterologous+mevalonate+pathway+through+the+use+of+variant+HMG-CoA+reductases.&rft.au=Ma%2C+Suzanne+M%3BGarcia%2C+David+E%3BRedding-Johanson%2C+Alyssa+M%3BFriedland%2C+Gregory+D%3BChan%2C+Rossana%3BBatth%2C+Tanveer+S%3BHaliburton%2C+John+R%3BChivian%2C+Dylan%3BKeasling%2C+Jay+D%3BPetzold%2C+Christopher+J%3BLee%2C+Taek+Soon%3BChhabra%2C+Swapnil+R&rft.aulast=Ma&rft.aufirst=Suzanne&rft.date=2011-09-01&rft.volume=13&rft.issue=5&rft.spage=588&rft.isbn=&rft.btitle=&rft.title=Metabolic+engineering&rft.issn=1096-7184&rft_id=info:doi/10.1016%2Fj.ymben.2011.07.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2011-11-14 N1 - Date created - 2011-08-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1016/j.ymben.2011.07.001 ER - TY - JOUR T1 - The impact of rate design and net metering on the bill savings from distributed PV for residential customers in California AN - 884120494; 4222664 AB - Net metering has become a widespread mechanism in the U.S. for supporting customer adoption of distributed photovoltaics (PV), but has faced challenges as PV installations grow to a larger share of generation in a number of states. This paper examines the value of the bill savings that customers receive under net metering, and the associated role of retail rate design, based on a sample of approximately two hundred residential customers of California's two largest electric utilities. We find that the bill savings per kWh of PV electricity generated varies by more than a factor of four across the customers in the sample, which is largely attributable to the inclining block structure of the utilities' residential retail rates. We also compare the bill savings under net metering to that received under three potential alternative compensation mechanisms, based on California's Market Price Referent (MPR). We find that net metering provides significantly greater bill savings than a full MPR-based feed-in tariff, but only modestly greater savings than alternative mechanisms under which hourly or monthly net excess generation is compensated at the MPR rate. All rights reserved, Elsevier JF - Energy policy AU - Darghouth, Naim R AU - Barbose, G AU - Wiser, R AD - Lawrence Berkeley National Laboratory Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 5243 EP - 5253 VL - 39 IS - 9 SN - 0301-4215, 0301-4215 KW - Economics KW - U.S.A. KW - California KW - Compensation KW - Energy prices KW - Household expenditure KW - Cost minimization KW - Solar energy KW - Retail prices KW - Power generation KW - Renewable energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884120494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+policy&rft.atitle=The+impact+of+rate+design+and+net+metering+on+the+bill+savings+from+distributed+PV+for+residential+customers+in+California&rft.au=Darghouth%2C+Naim+R%3BBarbose%2C+G%3BWiser%2C+R&rft.aulast=Darghouth&rft.aufirst=Naim&rft.date=2011-09-01&rft.volume=39&rft.issue=9&rft.spage=5243&rft.isbn=&rft.btitle=&rft.title=Energy+policy&rft.issn=03014215&rft_id=info:doi/10.1016%2Fj.enpol.2011.05.040 LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2013-06-12 N1 - Last updated - 2013-09-16 N1 - SubjectsTermNotLitGenreText - 12059 4246; 9971 4163 4246; 2925 2934; 6036 4618; 4263 10107; 10876 4271; 2644 9295; 10979 10107; 72 433 293 14 DO - http://dx.doi.org/10.1016/j.enpol.2011.05.040 ER - TY - JOUR T1 - Ozone pollution regimes modeled for a summer season in California's San Joaquin Valley: A cluster analysis AN - 1642228650; 15381108 AB - This study demonstrates an application of cluster analysis to model simulation data for California's San Joaquin Valley (SJV) for the purpose of identifying meteorologically representative pollution regimes. Principal component analysis is employed to facilitate exploring and visualizing temporal variations in highly resolved gridded model data. Six regimes are clustered according to the spatial distribution of SJV 8 h ozone maxima. Meteorological effects (temperature and winds) are shown to explain the observed ozone spatial distributions in the SJV, and their relationship to those in upwind San Francisco Bay Area air basin (SFB) under certain prevailing wind flow patterns. In general, average ozone levels in the SJV increase with temperature, while their spatial distributions depend on flow regimes, especially the strength of sea breezes and upslope flows. More ventilated flow regimes, associated with stronger sea breeze and upslope flows, cause eastward transport of pollutants, increasing ozone in the southeastern SJV and decreasing it in the northwest SJV. The opposite occurs during the most stagnant conditions associated with the weakest sea breeze and upslope flows. The two most prominent relationships between the SFB and SJV were found to be associated with the most ventilated and the most stagnant conditions, respectively, indicating a strong inter-basin transport (or the lack thereof) event. Spatial representativeness of existing measurement sites and the confounding influences of emission changes on clustering results are also investigated. Existing measurement sites are able to capture ozone spatial patterns in the SFB and Sacramento Valley (SV), whereas those along the western side of the SJV are under-represented. Differences in day-of-week emissions produce minor effects on spatial ozone distributions and the clusters are largely stable under these changes. JF - Atmospheric Environment AU - Jin, Ling AU - Harley, Robert A AU - Brown, Nancy J AD - Atmospheric Sciences Department, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2011/09// PY - 2011 DA - September 2011 SP - 4707 EP - 4718 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 45 IS - 27 SN - 1352-2310, 1352-2310 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Air pollution KW - Sea breezes KW - Spatial distribution KW - Pollution abatement KW - Cluster analysis KW - Clustering KW - Valleys KW - Ozone KW - Marine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1642228650?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Ozone+pollution+regimes+modeled+for+a+summer+season+in+California%27s+San+Joaquin+Valley%3A+A+cluster+analysis&rft.au=Jin%2C+Ling%3BHarley%2C+Robert+A%3BBrown%2C+Nancy+J&rft.aulast=Jin&rft.aufirst=Ling&rft.date=2011-09-01&rft.volume=45&rft.issue=27&rft.spage=4707&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2011.04.064 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2016-08-08 N1 - SubjectsTermNotLitGenreText - Marine DO - http://dx.doi.org/10.1016/j.atmosenv.2011.04.064 ER - TY - JOUR T1 - Techno-economic analysis of a lignocellulosic ethanol biorefinery with ionic liquid pre-treatment AN - 1017983747; 16718890 AB - Lignocellulose dissolution in ionic liquids is a relatively new biomass pre-treatment technology that is receiving growing interest from the biofuels community as a route to provide readily-hydrolyzable holocellulose. Despite its proven advantages over other pre-treatment technologies - including feedstock invariance, high monomeric sugar yields over short saccharification times, and extensive delignification - there are several core issues that stand in the way of commercialization. These include the relative high cost of the ionic liquids themselves, a lack of knowledge in terms of process considerations for a biorefinery based on these solvents, and scant information on the coproducts this pre-treatment technology could provide to the marketplace. We present an initial techno-economic model of a biorefinery that is based on the ionic liquid pre-treatment technology and have identified, through a comprehensive sensitivity analysis, the most significant areas in terms of cost savings/revenue generation that must be addressed before ionic liquid pre-treatment can compete with other, more established, pre-treatment technologies. This report evaluates this new pre-treatment technology through the perspective of a virtual operating biorefinery, and although there are significant challenges that must be addressed, there is a clear path that can enable commercialization of this novel approach. ? 2011 Society of Chemical Industry and John Wiley & Sons, Ltd JF - Biofuels, Bioproducts and Biorefining AU - Klein-Marcuschamer, Daniel AU - Simmons, Blake A AU - Blanch, Harvey W AD - Joint BioEnergy Institute, Emeryville, CA and Lawrence Berkeley National Laboratory, Berkeley, CA, USA, blanch@berkeley.edu Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 562 EP - 569 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 5 IS - 5 SN - 1932-1031, 1932-1031 KW - Biotechnology and Bioengineering Abstracts KW - lignocellulose KW - Sugar KW - Solvents KW - Dissolution KW - Refining KW - Biomass KW - Biofuels KW - Models KW - Ethanol KW - W 30945:Fermentation & Cell Culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017983747?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biofuels%2C+Bioproducts+and+Biorefining&rft.atitle=Techno-economic+analysis+of+a+lignocellulosic+ethanol+biorefinery+with+ionic+liquid+pre-treatment&rft.au=Klein-Marcuschamer%2C+Daniel%3BSimmons%2C+Blake+A%3BBlanch%2C+Harvey+W&rft.aulast=Klein-Marcuschamer&rft.aufirst=Daniel&rft.date=2011-09-01&rft.volume=5&rft.issue=5&rft.spage=562&rft.isbn=&rft.btitle=&rft.title=Biofuels%2C+Bioproducts+and+Biorefining&rft.issn=19321031&rft_id=info:doi/10.1002%2Fbbb.303 L2 - http://onlinelibrary.wiley.com/doi/10.1002/bbb.303/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Sugar; lignocellulose; Solvents; Dissolution; Refining; Biomass; Biofuels; Ethanol; Models DO - http://dx.doi.org/10.1002/bbb.303 ER - TY - JOUR T1 - Biomass deconstruction to sugars AN - 1017983648; 16717940 AB - The production of biofuels from lignocellulosic biomass relies on the depolymerization of its polysaccharide content into fermentable sugars. Accomplishing this requires pretreatment of the biomass to reduce its size, and chemical or physical alteration of the biomass polymers to enhance the susceptibility of their glycosidic linkages to enzymatic or acid catalyzed cleavage. Well-studied approaches include dilute and concentrated acid pretreatment and catalysis, and the dissolution of biomass in organic solvents. These and recently developed approaches, such as solubilization in ionic liquids, are reviewed in terms of the chemical and physical changes occurring in biomass pretreatment. As pretreatment represents one of the major costs in converting biomass to fuels, the factors that contribute to pretreatments costs, and their impact on overall process economics, are described. JF - Biotechnology Journal AU - Blanch, Harvey W AU - Simmons, Blake A AU - Klein-Marcuschamer, Daniel AD - Joint BioEnergy Institute, Emeryville, CA, USA, blanch@berkeley.edu Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 1086 EP - 1102 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 6 IS - 9 SN - 1860-7314, 1860-7314 KW - Biotechnology and Bioengineering Abstracts KW - Biofuels KW - Biomass KW - Catalysis KW - Depolymerization KW - Dissolution KW - Economics KW - Fuels KW - Polysaccharides KW - Reviews KW - Solubilization KW - Solvents KW - Sugar KW - W 30945:Fermentation & Cell Culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017983648?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Journal&rft.atitle=Biomass+deconstruction+to+sugars&rft.au=Blanch%2C+Harvey+W%3BSimmons%2C+Blake+A%3BKlein-Marcuschamer%2C+Daniel&rft.aulast=Blanch&rft.aufirst=Harvey&rft.date=2011-09-01&rft.volume=6&rft.issue=9&rft.spage=1086&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Journal&rft.issn=18607314&rft_id=info:doi/10.1002%2Fbiot.201000180 L2 - http://onlinelibrary.wiley.com/doi/10.1002/biot.201000180/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2012-06-01 N1 - SubjectsTermNotLitGenreText - Sugar; Depolymerization; Fuels; Solubilization; Reviews; Economics; Solvents; Dissolution; Polysaccharides; Biomass; Biofuels; Catalysis DO - http://dx.doi.org/10.1002/biot.201000180 ER - TY - JOUR T1 - Bioenergy feedstock-specific enrichment of microbial populations during high-solids thermophilic deconstruction AN - 1017963958; 16691862 AB - Thermophilic microbial communities that are active in a high-solids environment offer great potential for the discovery of industrially relevant enzymes that efficiently deconstruct bioenergy feedstocks. In this study, finished green waste compost was used as an inoculum source to enrich microbial communities and associated enzymes that hydrolyze cellulose and hemicellulose during thermophilic high-solids fermentation of the bioenergy feedstocks switchgrass and corn stover. Methods involving the disruption of enzyme and plant cell wall polysaccharide interactions were developed to recover xylanase and endoglucanase activity from deconstructed solids. Xylanase and endoglucanase activity increased by more than a factor of 5, upon four successive enrichments on switchgrass. Overall, the changes for switchgrass were more pronounced than for corn stover; solids reduction between the first and second enrichments increased by a factor of four for switchgrass while solids reduction remained relatively constant for corn stover. Amplicon pyrosequencing analysis of small-subunit ribosomal RNA genes recovered from enriched samples indicated rapid changes in the microbial communities between the first and second enrichment with the simplified communities achieved by the third enrichment. The results demonstrate a successful approach for enrichment of unique microbial communities and enzymes active in a thermophilic high-solids environment. Biotechnol. Bioeng. 2011; 108:2088-2098. ? 2011 Wiley Periodicals, Inc. JF - Biotechnology and Bioengineering AU - Reddy, Amitha P AU - Allgaier, Martin AU - Singer, Steven W AU - Hazen, Terry C AU - Simmons, Blake A AU - Hugenholtz, Philip AU - Vandergheynst, Jean S AD - Joint BioEnergy Institute, Emeryville, California, jsvander@ucdavis.edu Y1 - 2011/09// PY - 2011 DA - Sep 2011 SP - 2088 EP - 2098 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 108 IS - 9 SN - 1097-0290, 1097-0290 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Water Resources Abstracts; Aqualine Abstracts; Biotechnology and Bioengineering Abstracts KW - Endoglucanase KW - Fermentation KW - Cellulose KW - Polysaccharides KW - Xylan endo-1,3- beta -xylosidase KW - rRNA KW - Plant cells KW - Corn KW - Inoculum KW - Enrichment KW - Thermophilic microorganisms KW - Populations KW - Composts KW - Wastes KW - Enzymes KW - Solids KW - hemicellulose KW - Microorganisms KW - Biotechnology KW - AQ 00001:Water Resources and Supplies KW - SW 3050:Ultimate disposal of wastes KW - A 01310:Products of Microorganisms KW - W 30945:Fermentation & Cell Culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017963958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+and+Bioengineering&rft.atitle=Bioenergy+feedstock-specific+enrichment+of+microbial+populations+during+high-solids+thermophilic+deconstruction&rft.au=Reddy%2C+Amitha+P%3BAllgaier%2C+Martin%3BSinger%2C+Steven+W%3BHazen%2C+Terry+C%3BSimmons%2C+Blake+A%3BHugenholtz%2C+Philip%3BVandergheynst%2C+Jean+S&rft.aulast=Reddy&rft.aufirst=Amitha&rft.date=2011-09-01&rft.volume=108&rft.issue=9&rft.spage=2088&rft.isbn=&rft.btitle=&rft.title=Biotechnology+and+Bioengineering&rft.issn=10970290&rft_id=info:doi/10.1002%2Fbit.23176 L2 - http://onlinelibrary.wiley.com/doi/10.1002/bit.23176/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Endoglucanase; Composts; Fermentation; Cellulose; Wastes; Enzymes; Polysaccharides; Xylan endo-1,3- beta -xylosidase; hemicellulose; rRNA; Plant cells; Inoculum; Thermophilic microorganisms; Corn; Microorganisms; Solids; Enrichment; Populations; Biotechnology DO - http://dx.doi.org/10.1002/bit.23176 ER - TY - JOUR T1 - A sensor array system for profiling moisture in unsaturated rock and soil AN - 1017961733; 16698637 AB - As the scope of hydrologic investigations extend deeper into the subsurface profile, and increasingly include fractured rock, there is a growing need for techniques that can accurately monitor saturation changes at a high spatial and temporal resolution in this environment. We have developed a technique, the Electrical Resistance Sensor Array System (ERSAS), to track moisture dynamics in vadose zone regions that include both fractured rock and soil. The performance of ERSAS was compared with the time domain reflectometry (TDR) technique under controlled and field conditions. We found that ERSAS was effective in determining patterns of saturation changes along vertical soil/rock profiles. Because of the small size of individual sensors, it was able to resolve travel times associated with a wetting front and peak saturation better than TDR. In addition, ERSAS is significantly cheaper than the TDR system, and the sensor arrays are relatively easier to install in the subsurface profile. Published in 2011 by John Wiley & Sons, Ltd. JF - Hydrological Processes AU - Salve, Rohit Y1 - 2011/08/30/ PY - 2011 DA - 2011 Aug 30 SP - 2907 EP - 2915 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 25 IS - 18 SN - 1099-1085, 1099-1085 KW - Environment Abstracts; Meteorological & Geoastrophysical Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Moisture KW - Sensors KW - Climate change KW - Environmental factors KW - Soil KW - Resistance KW - Economics KW - Geologic Fractures KW - Hydrologic analysis KW - Profiling KW - Vadose waters KW - Saturation KW - Traveltime KW - Performance Evaluation KW - Rocks KW - Fronts KW - Profiles KW - AQ 00001:Water Resources and Supplies KW - M2 556:General (556) KW - SW 0845:Water in soils KW - Q2 09162:Methods and instruments KW - ENA 15:Renewable Resources-Terrestrial UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017961733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrological+Processes&rft.atitle=A+sensor+array+system+for+profiling+moisture+in+unsaturated+rock+and+soil&rft.au=Salve%2C+Rohit&rft.aulast=Salve&rft.aufirst=Rohit&rft.date=2011-08-30&rft.volume=25&rft.issue=18&rft.spage=2907&rft.isbn=&rft.btitle=&rft.title=Hydrological+Processes&rft.issn=10991085&rft_id=info:doi/10.1002%2Fhyp.8053 L2 - http://onlinelibrary.wiley.com/doi/10.1002/hyp.8053/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Sensors; Profiling; Climate change; Environmental factors; Hydrologic analysis; Fronts; Vadose waters; Soil; Economics; Moisture; Geologic Fractures; Performance Evaluation; Resistance; Rocks; Profiles; Saturation; Traveltime DO - http://dx.doi.org/10.1002/hyp.8053 ER - TY - JOUR T1 - Physicochemical controls on adsorbed water film thickness in unsaturated geological media AN - 899172891; 15744003 AB - Capillary pore filling constrains the upper limit of adsorbed film thickness A DLVO model for adsorbed water films has been developed Adsorbed water films commonly range from about 1 to 20 nm Adsorbed water films commonly coat mineral surfaces in unsaturated soils and rocks, reducing flow and transport rates. Therefore, it is important to understand how adsorbed film thickness depends on matric potential, surface chemistry, and solution chemistry. Here the problem of adsorbed water film thickness is examined by combining capillary scaling with the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory. Novel aspects of this analysis include determining capillary influences on film thicknesses and incorporating solution chemistry-dependent electrostatic potential at air-water interfaces. Capillary analysis of monodisperse packings of spherical grains provided estimated ranges of matric potentials where adsorbed films are stable and showed that pendular rings within drained porous media retain most of the "residual" water except under very low matric potentials. Within drained pores, capillary contributions to thinning of adsorbed films on spherical grains are shown to be small, such that DLVO calculations for flat surfaces are suitable approximations. Hamaker constants of common soil minerals were obtained to determine ranges of the dispersion component to matric potential-dependent film thickness. The pressure component associated with electrical double-layer forces was estimated using the compression and linear superposition approximations. The pH-dependent electrical double-layer pressure component is the dominant contribution to film thicknesses at intermediate values of matric potential, especially in lower ionic strength solutions (<10 mol m-3) on surfaces with higher-magnitude electrostatic potentials (more negative than approximately -50 mV). Adsorbed water films are predicted to usually range in thickness from approximately 1 to 20 nm in drained pores and fractures of unsaturated environments. JF - Water Resources Research AU - Tokunaga, Tetsu K AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2011/08/17/ PY - 2011 DA - 2011 Aug 17 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 47 IS - 08 SN - 0043-1397, 0043-1397 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - 1838 Hydrology: Infiltration KW - 1866 Hydrology: Soil moisture KW - 1875 Hydrology: Vadose zone KW - DLVO KW - adsorbed water KW - matric potential KW - water film KW - Air-water Interfaces KW - Water resources KW - Films KW - Surface chemistry KW - Porous Media KW - Fractures KW - Air-water interface KW - Model Studies KW - Pores KW - Strength KW - Water resources research KW - Minerals KW - Groundwater Movement KW - Scaling KW - Dispersion KW - AQ 00001:Water Resources and Supplies KW - SW 0845:Water in soils KW - Q2 09272:Petrology and chemistry of rocks KW - M2 556.18:Water Management (556.18) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899172891?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Physicochemical+controls+on+adsorbed+water+film+thickness+in+unsaturated+geological+media&rft.au=Tokunaga%2C+Tetsu+K&rft.aulast=Tokunaga&rft.aufirst=Tetsu&rft.date=2011-08-17&rft.volume=47&rft.issue=08&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2011WR010676 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Number of references - 67 N1 - Last updated - 2016-04-29 N1 - SubjectsTermNotLitGenreText - Fractures; Water resources; Air-water interface; Dispersion; Surface chemistry; Water resources research; Strength; Pores; Porous Media; Air-water Interfaces; Scaling; Groundwater Movement; Minerals; Model Studies; Films DO - http://dx.doi.org/10.1029/2011WR010676 ER - TY - JOUR T1 - Biogenic uraninite precipitation and its reoxidation by iron(III) (hydr)oxides: A reaction modeling approach AN - 888095097; 15458284 AB - One option for immobilizing uranium present in subsurface contaminated groundwater is in situ bioremediation, whereby dissimilatory metal-reducing bacteria and/or sulfate-reducing bacteria are stimulated to catalyze the reduction of soluble U(VI) and precipitate it as uraninite (UO sub(2)). This is typically accomplished by amending groundwater with an organic electron donor. It has been shown, however, that once the electron donor is entirely consumed, Fe(III) (hydr)oxides can reoxidize biogenically produced UO sub(2), thus potentially impeding cleanup efforts. On the basis of published experiments showing that such reoxidation takes place even under highly reducing conditions (e.g., sulfate-reducing conditions), thermodynamic and kinetic constraints affecting this reoxidation are examined using multicomponent biogeochemical simulations, with particular focus on the role of sulfide and Fe(II) in solution. The solubility of UO sub(2) and Fe(III) (hydr)oxides are presented, and the effect of nanoscale particle size on stability is discussed. Thermodynamically, sulfide is preferentially oxidized by Fe(III) (hydr)oxides, compared to biogenic UO sub(2), and for this reason the relative rates of sulfide and UO sub(2) oxidation play a key role on whether or not UO sub(2) reoxidizes. The amount of Fe(II) in solution is another important factor, with the precipitation of Fe(II) minerals lowering the Fe super(+2) activity in solution and increasing the potential for both sulfide and UO sub(2) reoxidation. The greater (and unintuitive) UO sub(2) reoxidation by hematite compared to ferrihydrite previously reported in some experiments can be explained by the exhaustion of this mineral from reaction with sulfide. Simulations also confirm previous studies suggesting that carbonate produced by the degradation of organic electron donors used for bioreduction may significantly increase the potential for UO sub(2) reoxidation through formation of uranyl carbonate aqueous complexes. JF - Geochimica et Cosmochimica Acta AU - Spycher, Nicolas F AU - Issarangkun, Montarat AU - Stewart, Brandy D AU - Sengoer, SSevinc AU - Belding, Eileen AU - Ginn, Tim R AU - Peyton, Brent M AU - Sani, Rajesh K Y1 - 2011/08/15/ PY - 2011 DA - 2011 Aug 15 SP - 4426 EP - 4440 PB - Elsevier B.V., P.O. Box 800 Kidlington Oxford OX5 1DX United Kingdom VL - 75 IS - 16 SN - 0016-7037, 0016-7037 KW - Aqualine Abstracts; Pollution Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Bioremediation KW - Particle Size KW - Groundwater Pollution KW - Uranium KW - Particle size KW - Bacteria KW - Sulfate-reducing bacteria KW - Solubility KW - Biogeochemistry KW - Carbonates KW - Sulfides KW - Simulation KW - Precipitation KW - Model Studies KW - Numerical simulations KW - Oxidation KW - Groundwater pollution KW - Groundwater KW - Minerals KW - AQ 00001:Water Resources and Supplies KW - SW 3050:Ultimate disposal of wastes KW - P 0000:AIR POLLUTION KW - M2 556.38:Groundwater Basins (556.38) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888095097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Biogenic+uraninite+precipitation+and+its+reoxidation+by+iron%28III%29+%28hydr%29oxides%3A+A+reaction+modeling+approach&rft.au=Spycher%2C+Nicolas+F%3BIssarangkun%2C+Montarat%3BStewart%2C+Brandy+D%3BSengoer%2C+SSevinc%3BBelding%2C+Eileen%3BGinn%2C+Tim+R%3BPeyton%2C+Brent+M%3BSani%2C+Rajesh+K&rft.aulast=Spycher&rft.aufirst=Nicolas&rft.date=2011-08-15&rft.volume=75&rft.issue=16&rft.spage=4426&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.05.008 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Solubility; Numerical simulations; Oxidation; Groundwater pollution; Precipitation; Particle size; Sulfate-reducing bacteria; Bioremediation; Biogeochemistry; Uranium; Sulfides; Simulation; Groundwater; Minerals; Bacteria; Particle Size; Carbonates; Groundwater Pollution; Model Studies DO - http://dx.doi.org/10.1016/j.gca.2011.05.008 ER - TY - JOUR T1 - Turbulence-flame interactions in lean premixed hydrogen: transition to the distributed burning regime AN - 1541424219; 19371575 AB - The response of lean ( less than or equal to 0.4) premixed hydrogen flames to maintained homogeneous isotropic turbulence is investigated using detailed numerical simulation in an idealised three-dimensional configuration over a range of Karlovitz numbers from 10 to 1562. In particular, a focus is placed on turbulence sufficiently intense that the flames can no longer be considered to be in the thin reaction burning regime. This transition to the so-called distributed burning regime is characterised through a number of diagnostics, and the relative roles of molecular and turbulent mixing processes are examined. The phenomenology and statistics of these flames are contrasted with a distributed thermonuclear flame from a related astrophysical study. JF - Journal of Fluid Mechanics AU - Aspden, A J AU - Day AU - Bell, J B AD - Center for Computational Sciences and Engineering, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 50A-1148, Berkeley, CA 94720, USA, AJAspden@lbl.gov Y1 - 2011/08/10/ PY - 2011 DA - 2011 Aug 10 SP - 287 EP - 320 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU United Kingdom VL - 680 SN - 0022-1120, 0022-1120 KW - Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Hydrological Regime KW - Statistics KW - Statistical analysis KW - Turbulent mixing KW - Hydrogen KW - turbulence KW - Mixing KW - Fluid Mechanics KW - Fluid mechanics KW - Incineration KW - Numerical simulations KW - Isotropic turbulence KW - Mixing processes KW - Turbulence KW - Q2 09169:Fluid mechanics KW - M2 52:C. Astrophysics (52) KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1541424219?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fluid+Mechanics&rft.atitle=Turbulence-flame+interactions+in+lean+premixed+hydrogen%3A+transition+to+the+distributed+burning+regime&rft.au=Aspden%2C+A+J%3BDay%3BBell%2C+J+B&rft.aulast=Aspden&rft.aufirst=A&rft.date=2011-08-10&rft.volume=680&rft.issue=&rft.spage=287&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fluid+Mechanics&rft.issn=00221120&rft_id=info:doi/10.1017%2Fjfm.2011.164 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-07-01 N1 - Last updated - 2016-03-17 N1 - SubjectsTermNotLitGenreText - Fluid mechanics; Mixing processes; Hydrogen; Turbulence; Numerical simulations; Isotropic turbulence; Statistical analysis; Turbulent mixing; Hydrological Regime; Incineration; Statistics; turbulence; Mixing; Fluid Mechanics DO - http://dx.doi.org/10.1017/jfm.2011.164 ER - TY - CPAPER T1 - Uncovering the mechanistic basis for soil microbial community response to altered precipitation patterns T2 - 96th Annual Meeting of the Ecological Society of America (ESA 2011) AN - 1313018200; 6100005 JF - 96th Annual Meeting of the Ecological Society of America (ESA 2011) AU - Bouskill, N AU - Karaoz, U AU - Bowen, B AU - Baran, R AU - Northen, T AU - Brodie, E Y1 - 2011/08/07/ PY - 2011 DA - 2011 Aug 07 KW - Soil microorganisms KW - Microbial activity KW - Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313018200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=96th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2011%29&rft.atitle=Uncovering+the+mechanistic+basis+for+soil+microbial+community+response+to+altered+precipitation+patterns&rft.au=Bouskill%2C+N%3BKaraoz%2C+U%3BBowen%2C+B%3BBaran%2C+R%3BNorthen%2C+T%3BBrodie%2C+E&rft.aulast=Bouskill&rft.aufirst=N&rft.date=2011-08-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=96th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.esa.org/austin/info/2011_ESA_Annual_Meeting_%28Austin%29_program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - How can soil microbial biogeography improve our ability to predict soil responses to climate change? T2 - 96th Annual Meeting of the Ecological Society of America (ESA 2011) AN - 1312948790; 6100325 JF - 96th Annual Meeting of the Ecological Society of America (ESA 2011) AU - Brodie, E AU - Bouskill, N Y1 - 2011/08/07/ PY - 2011 DA - 2011 Aug 07 KW - Soil KW - Biogeography KW - Climatic changes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312948790?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=96th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2011%29&rft.atitle=How+can+soil+microbial+biogeography+improve+our+ability+to+predict+soil+responses+to+climate+change%3F&rft.au=Brodie%2C+E%3BBouskill%2C+N&rft.aulast=Brodie&rft.aufirst=E&rft.date=2011-08-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=96th+Annual+Meeting+of+the+Ecological+Society+of+America+%28ESA+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.esa.org/austin/info/2011_ESA_Annual_Meeting_%28Austin%29_program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Sidestream tobacco smoke is a male germ cell mutagen. AN - 881087370; 21768363 AB - Active cigarette smoking increases oxidative damage, DNA adducts, DNA strand breaks, chromosomal aberrations, and heritable mutations in sperm. However, little is known regarding the effects of second-hand smoke on the male germ line. We show here that short-term exposure to mainstream tobacco smoke or sidestream tobacco smoke (STS), the main component of second-hand smoke, induces mutations at an expanded simple tandem repeat locus (Ms6-hm) in mouse sperm. We further show that the response to STS is not linear and that, for both mainstream tobacco smoke and STS, doses that induced significant increases in expanded simple tandem repeat mutations in sperm did not increase the frequencies of micronucleated reticulocytes and erythrocytes in the bone marrow and blood of exposed mice. These data show that passive exposure to cigarette smoke can cause tandem repeat mutations in sperm under conditions that may not induce genetic damage in somatic cells. Although the relationship between noncoding tandem repeat instability and mutations in functional regions of the genome is unclear, our data suggest that paternal exposure to second-hand smoke may have reproductive consequences that go beyond the passive smoker. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Marchetti, Francesco AU - Rowan-Carroll, Andrea AU - Williams, Andrew AU - Polyzos, Aris AU - Berndt-Weis, M Lynn AU - Yauk, Carole L AD - Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. francesco.marchetti@hc-sc.gc.ca Y1 - 2011/08/02/ PY - 2011 DA - 2011 Aug 02 SP - 12811 EP - 12814 VL - 108 IS - 31 KW - Mutagens KW - 0 KW - Smoke KW - Index Medicus KW - Mutation -- drug effects KW - Reticulocytes -- drug effects KW - Micronucleus, Germline -- drug effects KW - Erythrocytes -- drug effects KW - Animals KW - Dose-Response Relationship, Drug KW - Micronuclei, Chromosome-Defective -- chemically induced KW - Reticulocytes -- metabolism KW - Mice KW - Minisatellite Repeats -- genetics KW - Erythrocytes -- metabolism KW - Tandem Repeat Sequences -- genetics KW - Time Factors KW - Male KW - Smoke -- adverse effects KW - Tobacco -- chemistry KW - Spermatozoa -- drug effects KW - Spermatozoa -- metabolism KW - Mutagens -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881087370?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Sidestream+tobacco+smoke+is+a+male+germ+cell+mutagen.&rft.au=Marchetti%2C+Francesco%3BRowan-Carroll%2C+Andrea%3BWilliams%2C+Andrew%3BPolyzos%2C+Aris%3BBerndt-Weis%2C+M+Lynn%3BYauk%2C+Carole+L&rft.aulast=Marchetti&rft.aufirst=Francesco&rft.date=2011-08-02&rft.volume=108&rft.issue=31&rft.spage=12811&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=1091-6490&rft_id=info:doi/10.1073%2Fpnas.1106896108 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2011-10-27 N1 - Date created - 2011-08-03 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Mutat Res. 2004 Oct 4;554(1-2):287-95 [15450426] Mutat Res. 2004 Mar;566(2):169-82 [15164979] Toxicol Lett. 1987 Jan;35(1):153-6 [3810675] Nature. 1996 Apr 25;380(6576):683-6 [8614461] Mutat Res. 1996 Jun 10;352(1-2):169-72 [8676906] Nat Genet. 1997 May;16(1):74-8 [9140398] Proc Natl Acad Sci U S A. 1998 May 26;95(11):6251-5 [9600951] Carcinogenesis. 1999 Aug;20(8):1491-7 [10426797] Mutat Res. 2004 Nov;567(2-3):427-45 [15572289] Mutat Res. 2004 Nov;567(2-3):447-74 [15572290] Mutat Res. 2005 Mar 7;581(1-2):69-82 [15725606] Environ Mol Mutagen. 2006 Jun;47(5):362-90 [16649190] Proc Natl Acad Sci U S A. 2006 Jun 20;103(25):9601-6 [16766665] Oncogene. 2006 Nov 30;25(56):7336-42 [16751800] Cancer Res. 2007 Jun 1;67(11):5103-6 [17545587] Mutat Res. 2007 Dec 1;634(1-2):119-25 [17686648] Environ Mol Mutagen. 2008 May;49(4):308-11 [18366099] Curr Opin Obstet Gynecol. 2008 Jun;20(3):281-91 [18460944] Cancer Res. 2008 May 15;68(10):3630-6 [18483245] Toxicol Appl Pharmacol. 2009 Jun 15;237(3):298-305 [19345701] Lancet Oncol. 2009 Nov;10(11):1033-4 [19891056] Genome Biol. 2009;10(12):R137 [19954527] Environ Mol Mutagen. 2010 Oct-Dec;51(8-9):919-28 [20740630] Mutagenesis. 2011 Jan;26(1):139-45 [21164195] Lancet. 2011 Jan 8;377(9760):139-46 [21112082] Carcinogenesis. 2000 Mar;21(3):397-404 [10688860] Nature. 2000 May 4;405(6782):37 [10811208] Radiat Res. 2001 Jan;155(1 Pt 1):74-80 [11121218] Proc Natl Acad Sci U S A. 2001 Feb 13;98(4):1705-10 [11172015] Mutat Res. 2001 Jul 1;478(1-2):211-3 [11406186] Science. 2002 Feb 8;295(5557):1037 [11834827] Mutat Res. 2002 Mar 20;500(1-2):147-56 [11890944] Curr Opin Obstet Gynecol. 2002 Apr;14(2):145-51 [11914691] Am J Hum Genet. 2002 Oct;71(4):801-9 [12226793] Proc Natl Acad Sci U S A. 2002 Dec 10;99(25):15904-7 [12473746] Environ Mol Mutagen. 2003;41(2):111-20 [12605380] Radiat Res. 2003 May;159(5):651-5 [12710876] Mutat Res. 2003 May 15;526(1-2):63-73 [12714184] Tob Control. 2003 Dec;12(4):424-30 [14660781] Fertil Steril. 2004 Apr;81(4):1181-6 [15066502] Mutat Res. 2004 Apr 11;559(1-2):143-51 [15066582] Physiol Bohemoslov. 1978;27(3):209-17 [150611] N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1073/pnas.1106896108 ER - TY - JOUR T1 - Effect of ionic strength on the Mg content of calcite; toward a physical basis for minor element uptake during step growth AN - 904460678; 2011-102241 AB - This experimental study determined the effect of ionic strength (IS) on the uptake of Mg into calcites that grew by the classical step propagation process. Using flow-through AFM and defined solution chemistry, calcite was grown in NaCl and KCl solutions of known supersaturation state while measuring the corresponding growth kinetics. Analysis of the resulting calcite compositions by SIMS shows that Mg content is inversely correlated with IS for both electrolytes. A sixfold increase in IS decreases the Mg-content by up to 40%. Overgrowths that developed in NaCl solutions contain more Mg than samples that grew in KCl solutions. The corresponding kinetic measurements reveal that step propagation rates are independent of IS within experimental error but are electrolyte-specific. In NaCl solutions, steps with the obtuse geometry move significantly faster than acute steps, but in KCl solutions, the acute and obtuse steps move at similar rates. Analysis of the data suggests that the decrease in Mg content with increasing IS arises from the interplay of ion-kink interactions between the background cations (Na (super +) or K (super +) ), the primary solute cation (Ca (super 2+) ), and the impurity (Mg (super 2+) ). A simple physical model proposes that increasing levels of electrolytes block the attachment of the strongly hydrated Mg (super 2+) ion relative to Ca (super 2+) but the effects are step-specific for each type of electrolyte. Whereas K (super +) interacts weakly with kink sites along both step directions, Na (super +) interacts preferentially with acute steps and, consequently, slows their rate of step propagation relative to obtuse steps. Because Na (super +) increases the fraction of the surface that develops from acute steps and because Mg is preferentially incorporated into the kink sites of acute steps, calcite overgrowths developed in NaCl solutions contain more Mg than those in grown in KCl. Thus, the salt-specific Mg contents measured in this study can be explained by shifts in the distribution of step types and the ability of each step type to incorporate Mg. The findings reconcile apparent discrepancies regarding the effect of IS on calcite kinetics and Mg incorporation observed in laboratory-based studies. JF - Geochimica et Cosmochimica Acta AU - Stephenson, A E AU - Hunter, J L AU - Han, N AU - DeYoreo, J J AU - Dove, P M Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 4340 EP - 4350 PB - Elsevier, New York, NY VL - 75 IS - 15 SN - 0016-7037, 0016-7037 KW - Globigerinoides sacculifer KW - calcium KW - magnesium KW - oxygen KW - solutions KW - isotopes KW - thermal ionization mass spectra KW - mass spectra KW - crystal growth KW - salinity KW - stable isotopes KW - physical models KW - Globigerinacea KW - Foraminifera KW - atomic force microscopy data KW - Globigerinidae KW - Invertebrata KW - spectra KW - chemical composition KW - kinetics KW - geochemistry KW - chemical ratios KW - alkaline earth metals KW - sodium chloride KW - experimental studies KW - Protista KW - isotope ratios KW - Rotaliina KW - planktonic taxa KW - O-18/O-16 KW - calcite KW - Globigerinoides KW - metals KW - crystal chemistry KW - carbonates KW - microfossils KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904460678?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Effect+of+ionic+strength+on+the+Mg+content+of+calcite%3B+toward+a+physical+basis+for+minor+element+uptake+during+step+growth&rft.au=Stephenson%2C+A+E%3BHunter%2C+J+L%3BHan%2C+N%3BDeYoreo%2C+J+J%3BDove%2C+P+M&rft.aulast=Stephenson&rft.aufirst=A&rft.date=2011-08-01&rft.volume=75&rft.issue=15&rft.spage=4340&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.05.016 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 45 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; atomic force microscopy data; calcite; calcium; carbonates; chemical composition; chemical ratios; crystal chemistry; crystal growth; experimental studies; Foraminifera; geochemistry; Globigerinacea; Globigerinidae; Globigerinoides; Globigerinoides sacculifer; Invertebrata; isotope ratios; isotopes; kinetics; magnesium; mass spectra; metals; microfossils; O-18/O-16; oxygen; physical models; planktonic taxa; Protista; Rotaliina; salinity; sodium chloride; solutions; spectra; stable isotopes; thermal ionization mass spectra DO - http://dx.doi.org/10.1016/j.gca.2011.05.016 ER - TY - JOUR T1 - Iterative Tensor Voting for Perceptual Grouping of Ill-Defined Curvilinear Structures AN - 888101987; 15405174 AB - In this paper, a novel approach is proposed for perceptual grouping and localization of ill-defined curvilinear structures. Our approach builds upon the tensor voting and the iterative voting frameworks. Its efficacy lies on iterative refinements of curvilinear structures by gradually shifting from an exploratory to an exploitative mode. Such a mode shifting is achieved by reducing the aperture of the tensor voting fields, which is shown to improve curve grouping and inference by enhancing the concentration of the votes over promising, salient structures. The proposed technique is validated on delineating adherens junctions that are imaged through fluorescence microscopy. However, the method is also applicable for screening other organisms based on characteristics of their cell wall structures. Adherens junctions maintain tissue structural integrity and cell-cell interactions. Visually, they exhibit fibrous patterns that may be diffused, heterogeneous in fluorescence intensity, or punctate and frequently perceptual. Besides the application to real data, the proposed method is compared to prior methods on synthetic and annotated real data, showing high precision rates. JF - IEEE Transactions on Medical Imaging AU - Loss, Leandro A AU - Bebis, George AU - Parvin, Bahram AD - Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, Y1 - 2011/08// PY - 2011 DA - Aug 2011 SP - 1503 EP - 1513 PB - Institute of Electrical and Electronics Engineers, Inc., 345 E. 47th St. NY NY 10017-2394 United States VL - 30 IS - 8 SN - 0278-0062, 0278-0062 KW - Biotechnology and Bioengineering Abstracts KW - Data processing KW - adherens junctions KW - Cell interactions KW - Cell walls KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888101987?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE+Transactions+on+Medical+Imaging&rft.atitle=Iterative+Tensor+Voting+for+Perceptual+Grouping+of+Ill-Defined+Curvilinear+Structures&rft.au=Loss%2C+Leandro+A%3BBebis%2C+George%3BParvin%2C+Bahram&rft.aulast=Loss&rft.aufirst=Leandro&rft.date=2011-08-01&rft.volume=30&rft.issue=8&rft.spage=1503&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Medical+Imaging&rft.issn=02780062&rft_id=info:doi/10.1109%2FTMI.2011.2129526 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Data processing; adherens junctions; Cell interactions; Cell walls DO - http://dx.doi.org/10.1109/TMI.2011.2129526 ER - TY - JOUR T1 - Use of immunomagnetic separation for the detection of Desulfovibrio vulgaris from environmental samples AN - 883016199; 15208633 AB - Immunomagnetic separation (IMS) has proved highly efficient for recovering microorganisms from heterogeneous samples. Current investigation targeted the separation of viable cells of the sulfate-reducing bacterium, Desulfovibrio vulgaris. Streptavidin-coupled paramagnetic beads and biotin labeled antibodies raised against surface antigens of this microorganism were used to capture D. vulgaris cells in both bioreactor grown laboratory samples and from extremely low-biomass environmental soil and subsurface drilling samples. Initial studies on detection, recovery efficiency and viability for IMS were performed with laboratory grown D. vulgaris cells using various cell densities. Efficiency of cell isolation and recovery (i.e., release of the microbial cells from the beads following separation) was followed by microscopic imaging and acridine orange direct counts (AODC). Excellent recovery efficiency encouraged the use of IMS to capture Desulfovibrio spp. cells from low-biomass environmental samples. The environmental samples were obtained from a radionuclide-contaminated site in Germany and the chromium (VI)-contaminated Hanford site, an ongoing bioremediation project of the U.S. Department of Energy. Field deployable IMS technology may greatly facilitate environmental sampling and bioremediation process monitoring and enable transcriptomics and proteomics/metabolomics-based studies directly on cells collected from the field. JF - Journal of Microbiological Methods AU - Chakraborty, Romy AU - Hazen, Terry C AU - Joyner, Dominique C AU - Kuesel, Kirsten AU - Singer, Mary E AU - Sitte, Jana AU - Torok, Tamas AD - Lawrence Berkeley National Laboratory, Berkeley CA, United States, tchazen@lbl.gov Y1 - 2011/08// PY - 2011 DA - Aug 2011 SP - 204 EP - 209 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 86 IS - 2 SN - 0167-7012, 0167-7012 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Acridine orange KW - Bioremediation KW - Chromium KW - Cell density KW - immunomagnetic separation KW - Drilling KW - Desulfovibrio vulgaris KW - imaging KW - Soil KW - Antibodies KW - surface antigens KW - Bioreactors KW - Energy KW - Desulfovibrio KW - Microorganisms KW - proteomics KW - Sampling KW - Biotin KW - A 01300:Methods KW - J 02300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883016199?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Microbiological+Methods&rft.atitle=Use+of+immunomagnetic+separation+for+the+detection+of+Desulfovibrio+vulgaris+from+environmental+samples&rft.au=Chakraborty%2C+Romy%3BHazen%2C+Terry+C%3BJoyner%2C+Dominique+C%3BKuesel%2C+Kirsten%3BSinger%2C+Mary+E%3BSitte%2C+Jana%3BTorok%2C+Tamas&rft.aulast=Chakraborty&rft.aufirst=Romy&rft.date=2011-08-01&rft.volume=86&rft.issue=2&rft.spage=204&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microbiological+Methods&rft.issn=01677012&rft_id=info:doi/10.1016%2Fj.mimet.2011.05.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2013-09-09 N1 - SubjectsTermNotLitGenreText - Acridine orange; Bioremediation; Chromium; immunomagnetic separation; Cell density; Drilling; imaging; Soil; Antibodies; surface antigens; Energy; Bioreactors; Microorganisms; Sampling; proteomics; Biotin; Desulfovibrio; Desulfovibrio vulgaris DO - http://dx.doi.org/10.1016/j.mimet.2011.05.005 ER - TY - JOUR T1 - Meeting residential ventilation standards through dynamic control of ventilation systems AN - 876239882; 15004175 AB - Existing ventilation standards, including American Society of Heating, Refrigerating, and Air-conditioning Engineers (ASHRAE) Standard 62.2, specify continuous operation of a defined mechanical ventilation system to provide minimum ventilation, with time-based intermittent operation as an option. This requirement ignores several factors and concerns including: other equipment such as household exhaust fans that might incidentally provide ventilation, negative impacts of ventilation when outdoor pollutant levels are high, the importance of minimizing energy use particularly during times of peak electricity demand, and how the energy used to condition air as part of ventilation system operation changes with outdoor conditions. Dynamic control of ventilation systems can provide ventilation equivalent to or better than what is required by standards while minimizing energy costs and can also add value by shifting load during peak times and reducing intake of outdoor air contaminants. This article describes the logic that enables dynamic control of whole-house ventilation systems to meet the intent of ventilation standards and demonstrates the dynamic ventilation system control concept through simulations and field tests of the Residential Integrated Ventilation-Energy Controller (RIVEC). JF - Energy and Buildings AU - Sherman, Max H AU - Walker, Iain S AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA, mhsherman@lbl.gov Y1 - 2011/08// PY - 2011 DA - Aug 2011 SP - 1904 EP - 1912 PB - Elsevier Science, P.O. Box 564 Lausanne 1 CH-1001 Switzerland VL - 43 IS - 8 SN - 0378-7788, 0378-7788 KW - Environment Abstracts; Pollution Abstracts KW - Air conditioning KW - Ventilation KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876239882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+and+Buildings&rft.atitle=Meeting+residential+ventilation+standards+through+dynamic+control+of+ventilation+systems&rft.au=Sherman%2C+Max+H%3BWalker%2C+Iain+S&rft.aulast=Sherman&rft.aufirst=Max&rft.date=2011-08-01&rft.volume=43&rft.issue=8&rft.spage=1904&rft.isbn=&rft.btitle=&rft.title=Energy+and+Buildings&rft.issn=03787788&rft_id=info:doi/10.1016%2Fj.enbuild.2011.03.037 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Ventilation DO - http://dx.doi.org/10.1016/j.enbuild.2011.03.037 ER - TY - JOUR T1 - Emissions scenarios, costs, and implementation considerations of REDD-plus programs AN - 1777152122; 15769670 AB - Greenhouse gas emissions from the forestry sector are estimated to be 8.4 GtCO2-eq./year or about 17% of the global emissions. We estimate that the cost for reducing deforestation is low in Africa and several times higher in Latin America and Southeast Asia. These cost estimates are sensitive to the uncertainties of how much unsustainable high-revenue logging occurs, little understood transaction and program implementation costs, and barriers to implementation including governance issues. Due to lack of capacity in the affected countries, achieving reduction or avoidance of carbon emissions will require extensive REDD-plus programs. Preliminary REDD-plus Readiness cost estimates and program descriptions for Indonesia, Democratic Republic of the Congo, Ghana, Guyana and Mexico show that roughly one-third of potential REDD-plus mitigation benefits might come from avoided deforestation and the rest from avoided forest degradation and other REDD-plus activities. JF - Environment and Development Economics AU - Sathaye, Jayant AU - Andrasko, Kenneth AU - Chan, Peter AD - MS 90-4000, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA. Email: jasathaye@lbl.gov jasathaye@lbl.gov Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 361 EP - 380 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU United Kingdom VL - 16 IS - 4 SN - 1355-770X, 1355-770X KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Costs KW - Air pollution KW - Reduction KW - Carbon KW - Economics KW - Cost estimates KW - Forestry KW - Deforestation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777152122?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environment+and+Development+Economics&rft.atitle=Emissions+scenarios%2C+costs%2C+and+implementation+considerations+of+REDD-plus+programs&rft.au=Sathaye%2C+Jayant%3BAndrasko%2C+Kenneth%3BChan%2C+Peter&rft.aulast=Sathaye&rft.aufirst=Jayant&rft.date=2011-08-01&rft.volume=16&rft.issue=4&rft.spage=361&rft.isbn=&rft.btitle=&rft.title=Environment+and+Development+Economics&rft.issn=1355770X&rft_id=info:doi/10.1017%2FS1355770X11000052 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Number of references - 3 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1017/S1355770X11000052 ER - TY - JOUR T1 - Laser Ablation Molecular Isotopic Spectrometry: Parameter influence on boron isotope measurements AN - 1430858089; 15750393 AB - Laser Ablation Molecular Isotopic Spectrometry (LAMIS) was recently reported for optical isotopic analysis of condensed samples in ambient air and at ambient pressure. LAMIS utilizes molecular emissions which exhibit larger isotopic spectral shits than in atomic transitions. For boron monoxide 10BO and 11BO, the isotopic shifts extend from 114cm-1 (0.74nm) to 145-238cm-1 (5-8nm) at the B JF - Spectrochimica Acta Part B Atomic Spectroscopy AU - Mao, Xianglei AU - Bol'shakov, Alexander A AU - Perry, Dale L AU - Sorkhabi, Osman AU - Russo, Richard E Y1 - 2011/08// PY - 2011 DA - August 2011 SP - 604 EP - 609 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 66 IS - 8 SN - 0584-8547, 0584-8547 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Optical isotopic measurement KW - Laser ablation plasma KW - Molecular emission spectra KW - LIBS KW - LAMIS of boron isotopes KW - Boron isotope KW - Boron isotopes KW - Spectroscopy KW - Boron KW - Lasers KW - Ablation KW - SW 5010:Network design KW - Q5 08502:Methods and instruments KW - AQ 00003:Monitoring and Analysis of Water and Wastes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1430858089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.atitle=Laser+Ablation+Molecular+Isotopic+Spectrometry%3A+Parameter+influence+on+boron+isotope+measurements&rft.au=Mao%2C+Xianglei%3BBol%27shakov%2C+Alexander+A%3BPerry%2C+Dale+L%3BSorkhabi%2C+Osman%3BRusso%2C+Richard+E&rft.aulast=Mao&rft.aufirst=Xianglei&rft.date=2011-08-01&rft.volume=66&rft.issue=8&rft.spage=604&rft.isbn=&rft.btitle=&rft.title=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.issn=05848547&rft_id=info:doi/10.1016%2Fj.sab.2011.06.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-09-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Boron isotopes; Lasers; Boron; Ablation; Spectroscopy DO - http://dx.doi.org/10.1016/j.sab.2011.06.007 ER - TY - JOUR T1 - Characterizing flexible and intrinsically unstructured biological macromolecules by SAS using the Porod-Debye law AN - 1017961520; 16691741 AB - Unstructured proteins, RNA or DNA components provide functionally important flexibility that is key to many macromolecular assemblies throughout cell biology. As objective, quantitative experimental measures of flexibility and disorder in solution are limited, small angle scattering (SAS), and in particular small angle X-ray scattering (SAXS), provides a critical technology to assess macromolecular flexibility as well as shape and assembly. Here, we consider the Porod-Debye law as a powerful tool for detecting biopolymer flexibility in SAS experiments. We show that the Porod-Debye region fundamentally describes the nature of the scattering intensity decay by capturing the information needed for distinguishing between folded and flexible particles. Particularly for comparative SAS experiments, application of the law, as described here, can distinguish between discrete conformational changes and localized flexibility relevant to molecular recognition and interaction networks. This approach aids insightful analyses of fully and partly flexible macromolecules that is more robust and conclusive than traditional Kratky analyses. Furthermore, we demonstrate for prototypic SAXS data that the ability to calculate particle density by the Porod-Debye criteria, as shown here, provides an objective quality assurance parameter that may prove of general use for SAXS modeling and validation. ? 2011 Wiley Periodicals, Inc. Biopolymers 95: 559-571, 2011. JF - Biopolymers AU - Rambo, Robert P AU - Tainer, John A AD - Life Sciences Division, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, jat@scripps.edu Y1 - 2011/08// PY - 2011 DA - Aug 2011 SP - 559 EP - 571 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 95 IS - 8 SN - 1097-0282, 1097-0282 KW - Biotechnology and Bioengineering Abstracts KW - Macromolecules KW - Data processing KW - RNA KW - Quality control KW - Biopolymers KW - DNA KW - X-ray scattering KW - W 30935:Food Biotechnology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017961520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biopolymers&rft.atitle=Characterizing+flexible+and+intrinsically+unstructured+biological+macromolecules+by+SAS+using+the+Porod-Debye+law&rft.au=Rambo%2C+Robert+P%3BTainer%2C+John+A&rft.aulast=Rambo&rft.aufirst=Robert&rft.date=2011-08-01&rft.volume=95&rft.issue=8&rft.spage=559&rft.isbn=&rft.btitle=&rft.title=Biopolymers&rft.issn=10970282&rft_id=info:doi/10.1002%2Fbip.21638 L2 - http://onlinelibrary.wiley.com/doi/10.1002/bip.21638/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Macromolecules; Data processing; RNA; Quality control; X-ray scattering; DNA; Biopolymers DO - http://dx.doi.org/10.1002/bip.21638 ER - TY - CPAPER T1 - Practical NGS Analysis: A Bioinformatician's Perspective T2 - 19th Annual International Conference on Intelligent Systems for Molecular Biology and 10th European Conference on Computational Biology (ISMB/ECCB 2011) AN - 1312985861; 6078200 JF - 19th Annual International Conference on Intelligent Systems for Molecular Biology and 10th European Conference on Computational Biology (ISMB/ECCB 2011) AU - Pratap, Abhishek Y1 - 2011/07/17/ PY - 2011 DA - 2011 Jul 17 KW - Molecular biology KW - Computer applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312985861?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=19th+Annual+International+Conference+on+Intelligent+Systems+for+Molecular+Biology+and+10th+European+Conference+on+Computational+Biology+%28ISMB%2FECCB+2011%29&rft.atitle=Practical+NGS+Analysis%3A+A+Bioinformatician%27s+Perspective&rft.au=Pratap%2C+Abhishek&rft.aulast=Pratap&rft.aufirst=Abhishek&rft.date=2011-07-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=19th+Annual+International+Conference+on+Intelligent+Systems+for+Molecular+Biology+and+10th+European+Conference+on+Computational+Biology+%28ISMB%2FECCB+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.iscb.org/ismbeccb2011-program LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Biosensors and their applications in microbial metabolic engineering AN - 904484085; 15208400 AB - Many metabolic pathways in microbial hosts have been created, modified and engineered to produce useful molecules. The titer and yield of a final compound is often limited by the inefficient use of cellular resources and imbalanced metabolism. Engineering sensory-regulation devices that regulate pathway gene expression in response to the environment and metabolic status of the cell have great potential to solve these problems, and enhance product titers and yields. This review will focus on recent developments in biosensor design, and their applications for controlling microbial behavior. JF - Trends in Microbiology AU - Zhang, Fuzhong AU - Keasling, Jay AD - Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608, USA, keasling@berkeley.edu PY - 2011 SP - 323 EP - 329 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 19 IS - 7 SN - 0966-842X, 0966-842X KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Biosensors KW - Gene expression KW - Reviews KW - Metabolic pathways KW - metabolic engineering KW - W 30955:Biosensors KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904484085?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Trends+in+Microbiology&rft.atitle=Biosensors+and+their+applications+in+microbial+metabolic+engineering&rft.au=Zhang%2C+Fuzhong%3BKeasling%2C+Jay&rft.aulast=Zhang&rft.aufirst=Fuzhong&rft.date=2011-07-01&rft.volume=19&rft.issue=7&rft.spage=323&rft.isbn=&rft.btitle=&rft.title=Trends+in+Microbiology&rft.issn=0966842X&rft_id=info:doi/10.1016%2Fj.tim.2011.05.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2016-01-06 N1 - SubjectsTermNotLitGenreText - Gene expression; Biosensors; Reviews; Metabolic pathways; metabolic engineering DO - http://dx.doi.org/10.1016/j.tim.2011.05.003 ER - TY - JOUR T1 - Constraining the reservoir model of an injected CO sub(2) plume with crosswell CASSM at the Frio-II brine pilot AN - 888117616; 15585200 AB - Crosswell CASSM (continuous active-source seismic monitoring) data was acquired as part of the Frio-II brine pilot CO sub(2) injection experiment. To gain insight into the CO sub(2) plume evolution, we have integrated the 3D multiphase flow modeling code TOUGH2 with seismic simulation codes via a petrophysical model that predicts seismic velocity for a given CO sub(2) saturation. Results of forward seismic modeling based on the CO sub(2) saturation distribution produced by an initial TOUGH2 model compare poorly with the CASSM data, indicating that the initial flow model did not capture the actual CO sub(2) plume dynamics. Updates to the TOUGH2 model required to better match the CASSM field data indicate vertical flow near the injection well, with increased horizontal plume growth occurring at the top of the reservoir sand. The CASSM continuous delay time data are ideal for constraining the modeled spatiotemporal evolution of the CO sub(2) plume and allow improvement in reservoir model and estimation of CO sub(2) plume properties. JF - International Journal of Greenhouse Gas Control AU - Daley, Thomas M AU - Ajo-Franklin, Jonathan B AU - Doughty, Christine Y1 - 2011/07// PY - 2011 DA - Jul 2011 SP - 1022 EP - 1030 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 5 IS - 4 SN - 1750-5836, 1750-5836 KW - Environment Abstracts; Pollution Abstracts KW - Carbon dioxide KW - P 0000:AIR POLLUTION KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888117616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=Constraining+the+reservoir+model+of+an+injected+CO+sub%282%29+plume+with+crosswell+CASSM+at+the+Frio-II+brine+pilot&rft.au=Daley%2C+Thomas+M%3BAjo-Franklin%2C+Jonathan+B%3BDoughty%2C+Christine&rft.aulast=Daley&rft.aufirst=Thomas&rft.date=2011-07-01&rft.volume=5&rft.issue=4&rft.spage=1022&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2011.03.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Carbon dioxide DO - http://dx.doi.org/10.1016/j.ijggc.2011.03.002 ER - TY - JOUR T1 - Brine flow up a well caused by pressure perturbation from geologic carbon sequestration: Static and dynamic evaluations AN - 888117609; 15585183 AB - Industrial-scale storage of CO sub(2) in saline sedimentary basins will cause zones of elevated pressure, larger than the CO sub(2) plume itself. If permeable conduits (e.g., leaking wells) exist between the injection reservoir and overlying shallow aquifers, brine could be pushed upwards along these conduits and mix with groundwater resources. This paper discusses the potential for such brine leakage to occur in temperature- and salinity-stratified systems. Using static mass-balance calculations as well as dynamic well flow simulations, we evaluate the minimum reservoir pressure that would generate continuous migration of brine up a leaking wellbore into a freshwater aquifer. Since the brine invading the well is denser than the initial fluid in the wellbore, continuous flow only occurs if the pressure perturbation in the reservoir is large enough to overcome the increased fluid column weight after full invasion of brine into the well. If the threshold pressure is exceeded, brine flow rates are dependent on various hydraulic (and other) properties, in particular the effective permeability of the wellbore and the magnitude of pressure increase. If brine flow occurs outside of the well casing, e.g., in a permeable fracture zone between the well cement and the formation, the fluid/solute transfer between the migrating fluid and the surrounding rock units can strongly retard brine flow. At the same time, the threshold pressure for continuous flow to occur decreases compared to a case with no fluid/solute transfer. JF - International Journal of Greenhouse Gas Control AU - Birkholzer, Jens T AU - Nicot, Jean Philippe AU - Oldenburg, Curtis M AU - Zhou, Quanlin AU - Kraemer, Stephen AU - Bandilla, Karl Y1 - 2011/07// PY - 2011 DA - Jul 2011 SP - 850 EP - 861 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 5 IS - 4 SN - 1750-5836, 1750-5836 KW - Pollution Abstracts KW - Aquifers KW - Reservoirs KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888117609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=Brine+flow+up+a+well+caused+by+pressure+perturbation+from+geologic+carbon+sequestration%3A+Static+and+dynamic+evaluations&rft.au=Birkholzer%2C+Jens+T%3BNicot%2C+Jean+Philippe%3BOldenburg%2C+Curtis+M%3BZhou%2C+Quanlin%3BKraemer%2C+Stephen%3BBandilla%2C+Karl&rft.aulast=Birkholzer&rft.aufirst=Jens&rft.date=2011-07-01&rft.volume=5&rft.issue=4&rft.spage=850&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2011.01.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Reservoirs DO - http://dx.doi.org/10.1016/j.ijggc.2011.01.003 ER - TY - JOUR T1 - Assessing the risk for CO sub(2) transportation within CCS projects, CFD modelling AN - 888117601; 15585181 AB - Surface transportation of carbon dioxide will be a critical issue in the developing field of carbon capture and storage (CCS). A leak from a high-pressure transportation facility can result in damage to the environment and hazard to people, depending on the total amount of carbon dioxide released to the atmosphere and the concentrations achieved in the proximity of the leakage. Generic Risk Assessments for CO sub(2) transportation to date have relied on various assumptions about the behaviour of carbon dioxide after a severe pressure drop. In this study, simulations by two classes of atmospheric dispersion model (Gaussian and computational fluid dynamics, CFD) have been compared, taking representative input parameters concerning high-pressure CO sub(2) releases from the literature. The CFD model was used to simulate a high-speed release with specified velocities with the aim of evaluating the effect of initial gas dispersion on the downwind length reached by toxic concentrations of the pollutant. Results of this investigation depict a lowering of the Risk involved in the transportation of CO sub(2) by up to one order of magnitude, when modelling the same releases with a CFD tool, compared to the more widespread Gaussian models. The EU used results from Gaussian modelling for drawing up an Impact Assessment on the CO sub(2) transportation within CCS. In this paper, suggestions for future preparation of CCS Risk Assessments are presented. JF - International Journal of Greenhouse Gas Control AU - Mazzoldi, Alberto AU - Hill, Tim AU - Colls, Jeremy J Y1 - 2011/07// PY - 2011 DA - Jul 2011 SP - 816 EP - 825 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 5 IS - 4 SN - 1750-5836, 1750-5836 KW - Risk Abstracts; Environment Abstracts; Pollution Abstracts KW - Carbon dioxide KW - R2 23020:Technological risks KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888117601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=Assessing+the+risk+for+CO+sub%282%29+transportation+within+CCS+projects%2C+CFD+modelling&rft.au=Mazzoldi%2C+Alberto%3BHill%2C+Tim%3BColls%2C+Jeremy+J&rft.aulast=Mazzoldi&rft.aufirst=Alberto&rft.date=2011-07-01&rft.volume=5&rft.issue=4&rft.spage=816&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2011.01.001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Carbon dioxide DO - http://dx.doi.org/10.1016/j.ijggc.2011.01.001 ER - TY - JOUR T1 - Influence of physico-chemical changes on enzymatic digestibility of ionic liquid and AFEX pretreated corn stover AN - 883048180; 15305354 AB - Ionic liquid (IL) and ammonia fiber expansion (AFEX) pretreatments were studied to develop the first direct side-by-side comparative assessment on their respective impacts on biomass structure, composition, process mass balance, and enzymatic saccharification efficiency. AFEX pretreatment completely preserves plant carbohydrates, whereas IL pretreatment extracts 76% of hemicellulose. In contrast to AFEX, the native crystal structure of the recovered corn stover from IL pretreatment was significantly disrupted. For both techniques, more than 70% of the theoretical sugar yield was attained after 48 h of hydrolysis using commercial enzyme cocktails. IL pretreatment requires less enzyme loading and a shorter hydrolysis time to reach 90% yields. Hemicellulase addition led to significant improvements in the yields of glucose and xylose for AFEX pretreated corn stover, but not for IL pretreated stover. These results provide new insights into the mechanisms of IL and AFEX pretreatment, as well as the advantages and disadvantages of each. JF - Bioresource Technology AU - Li, Chenlin AU - Cheng, Gang AU - Balan, Venkatesh AU - Kent, Michael S AU - Ong, Markus AU - Chundawat, Shishir PS AU - Sousa, Leonardo daCosta AU - Melnichenko, Yuri B AU - Dale, Bruce E AU - Simmons, Blake A AU - Singh, Seema AD - Deconstruction Division, Joint BioEnergy Institute, Emeryville, CA, USA Y1 - 2011/07// PY - 2011 DA - Jul 2011 SP - 6928 EP - 6936 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 102 IS - 13 SN - 0960-8524, 0960-8524 KW - Environment Abstracts; Biotechnology and Bioengineering Abstracts KW - Xylose KW - Glucose KW - corn KW - Crystal structure KW - Carbohydrates KW - Sugar KW - Ammonia KW - Physicochemical properties KW - Enzymes KW - Biomass KW - Hydrolysis KW - hemicellulose KW - Fibers KW - Digestibility KW - Plant extracts KW - W 30945:Fermentation & Cell Culture KW - ENA 21:Wildlife UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883048180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioresource+Technology&rft.atitle=Influence+of+physico-chemical+changes+on+enzymatic+digestibility+of+ionic+liquid+and+AFEX+pretreated+corn+stover&rft.au=Li%2C+Chenlin%3BCheng%2C+Gang%3BBalan%2C+Venkatesh%3BKent%2C+Michael+S%3BOng%2C+Markus%3BChundawat%2C+Shishir+PS%3BSousa%2C+Leonardo+daCosta%3BMelnichenko%2C+Yuri+B%3BDale%2C+Bruce+E%3BSimmons%2C+Blake+A%3BSingh%2C+Seema&rft.aulast=Li&rft.aufirst=Chenlin&rft.date=2011-07-01&rft.volume=102&rft.issue=13&rft.spage=6928&rft.isbn=&rft.btitle=&rft.title=Bioresource+Technology&rft.issn=09608524&rft_id=info:doi/10.1016%2Fj.biortech.2011.04.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Sugar; Xylose; Ammonia; Glucose; Enzymes; Biomass; Hydrolysis; hemicellulose; Fibers; Digestibility; Crystal structure; Carbohydrates; Plant extracts; Physicochemical properties; corn DO - http://dx.doi.org/10.1016/j.biortech.2011.04.005 ER - TY - JOUR T1 - Identification and characterization of nanosized tripuhyite in soil near Sb mine tailings AN - 881452176; 2011-062966 AB - In soil near tailings from an antimony (Sb) mine, we found micro-grains coated with an antimony-rich layer. These grains were characterized in detail using multiple advanced analytical techniques such as micro-X-ray absorption near edge structure (mu -XANES), micro-extended X-ray absorption fine structure (mu -EXAFS), micro-X-ray diffraction (mu -XRD), transmission electron microscope (TEM), and electron probe microanalysis (EPMA). The EPMA showed that one soil grain (grain A) locally accumulated a large amount of Sb in the secondary phases (40-61 wt% Sb (sub 2) O (sub 5) ) with significant Fe (20-28 wt% Fe (sub 2) O (sub 3) ). The spatial distribution of Sb in the grain was similar to that of iron. Both Fe mu -XANES and mu -XRD of the Sb hot spots in grain A consistently showed that the secondary products were dominantly composed of ferric antimonate, tripuhyite (FeSbO (sub 4) ). Fits to the Sb K-edge mu -EXAFS of this phase showed second-neighbor coordination numbers approximately 30% smaller than in bulk tripuhyite, indicating that the tripuhyite included in grain A is nanoparticulate and/or has a high structural disorder. The TEM analysis suggests that the particle size of tripuhyite in grain A was around 10 nm, which is consistent with the size range indicated by mu -XRD and mu -EXAFS. This is the first report showing tripuhyite with nanocrystallinity in natural soil to date. JF - American Mineralogist AU - Mitsunobu, Satoshi AU - Takahashi, Yoshio AU - Utsunomiya, Satoshi AU - Marcus, Matthew A AU - Terada, Yasuko AU - Iwamura, Takeru AU - Sakata, Masahiro Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1171 EP - 1181 PB - Mineralogical Society of America, Washington, DC VL - 96 IS - 7 SN - 0003-004X, 0003-004X KW - Far East KW - X-ray diffraction data KW - antimony ores KW - electron probe data KW - spectra KW - Ichinokawa Mine KW - Asia KW - soils KW - mines KW - high-resolution methods KW - antimony KW - mine waste KW - tripuhyite KW - XAFS spectra KW - X-ray spectra KW - TEM data KW - Ehime Japan KW - antimonates KW - metals KW - identification KW - metal ores KW - EXAFS data KW - tailings KW - nanoparticles KW - Japan KW - Shikoku KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881452176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Identification+and+characterization+of+nanosized+tripuhyite+in+soil+near+Sb+mine+tailings&rft.au=Mitsunobu%2C+Satoshi%3BTakahashi%2C+Yoshio%3BUtsunomiya%2C+Satoshi%3BMarcus%2C+Matthew+A%3BTerada%2C+Yasuko%3BIwamura%2C+Takeru%3BSakata%2C+Masahiro&rft.aulast=Mitsunobu&rft.aufirst=Satoshi&rft.date=2011-07-01&rft.volume=96&rft.issue=7&rft.spage=1171&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2011.3651 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 52 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - antimonates; antimony; antimony ores; Asia; Ehime Japan; electron probe data; EXAFS data; Far East; high-resolution methods; Ichinokawa Mine; identification; Japan; metal ores; metals; mine waste; mines; nanoparticles; Shikoku; soils; spectra; tailings; TEM data; tripuhyite; X-ray diffraction data; X-ray spectra; XAFS spectra DO - http://dx.doi.org/10.2138/am.2011.3651 ER - TY - JOUR T1 - Solving iTOUGH2 simulation and optimization problems using the PEST protocol AN - 869571916; 14630381 AB - The PEST protocol has been implemented into the iTOUGH2 code, allowing the user to link any simulation program (with ASCII-based inputs and outputs) to iTOUGH2as sensitivity analysis, inverse modeling, and uncertainty quantification capabilities. These application models can be pre- or post-processors of the TOUGH2 non-isothermal multiphase flow and transport simulator, or programs that are unrelated to the TOUGH suite of codes. PEST-style template and instruction files are used, respectively, to pass input parameters updated by the iTOUGH2 optimization routines to the model, and to retrieve the model-calculated values that correspond to observable variables. We summarize the iTOUGH2 capabilities and demonstrate the flexibility added by the PEST protocol for the solution of a variety of simulationaoptimization problems. In particular, the combination of loosely coupled and tightly integrated simulation and optimization routines provides both the flexibility and control needed to solve challenging inversion problems for the analysis of multiphase subsurface flow and transport systems. JF - Environmental Modelling & Software AU - Finsterle, Stefan AU - Zhang, Yingqi AD - Lawrence Berkeley National Laboratory, Earth Sciences Division, 1 Cyclotron Road, MS 90-1116, Berkeley, CA 94720, USA, safinsterle@lbl.gov Y1 - 2011/07// PY - 2011 DA - Jul 2011 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 26 IS - 7 SN - 1364-8152, 1364-8152 KW - Environment Abstracts; Water Resources Abstracts; Aqualine Abstracts; ASFA 1: Biological Sciences & Living Resources KW - Optimization KW - Sensitivity analysis KW - Inverse modeling KW - Uncertainty quantification KW - iTOUGH2 KW - PEST KW - Simulators KW - Simulation Analysis KW - Flexibility KW - Simulation KW - Multiphase flow KW - Templates KW - Multiphase Flow KW - Inversions KW - Model Studies KW - Sensitivity Analysis KW - Computer programs KW - pests KW - Inversion KW - sensitivity analysis KW - Storm Seepage KW - AQ 00001:Water Resources and Supplies KW - SW 0540:Properties of water KW - Q1 08485:Species interactions: pests and control KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869571916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Modelling+%26+Software&rft.atitle=Solving+iTOUGH2+simulation+and+optimization+problems+using+the+PEST+protocol&rft.au=Finsterle%2C+Stefan%3BZhang%2C+Yingqi&rft.aulast=Finsterle&rft.aufirst=Stefan&rft.date=2011-07-01&rft.volume=26&rft.issue=7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Environmental+Modelling+%26+Software&rft.issn=13648152&rft_id=info:doi/10.1016%2Fj.envsoft.2011.02.008 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Simulators; Multiphase flow; Templates; Inversions; Computer programs; pests; Inversion; sensitivity analysis; Simulation; Sensitivity Analysis; Simulation Analysis; Flexibility; Storm Seepage; Multiphase Flow; Optimization; Model Studies DO - http://dx.doi.org/10.1016/j.envsoft.2011.02.008 ER - TY - JOUR T1 - Metamorphic indicators in Stardust AN - 1535204836; 2014-040068 JF - Meteoritics & Planetary Science AU - Gainsforth, Z AU - Butterworth, A L AU - Brownlee, D E AU - Huss, G R AU - Joswiak, D AU - Nagashima, K AU - Ogliore, R C AU - Tyliczszak, T AU - Westphal, A J AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - magnesium KW - geologic thermometry KW - thermal alteration KW - olivine group KW - thermal history KW - iron KW - temperature KW - partitioning KW - transport KW - olivine KW - orthosilicates KW - cooling KW - Wild 2 Comet KW - oxides KW - mineral assemblages KW - alkaline earth metals KW - Stardust Mission KW - parent bodies KW - chromite KW - thermal metamorphism KW - indicators KW - metamorphism KW - nesosilicates KW - comets KW - metals KW - low-grade metamorphism KW - cometary dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204836?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Metamorphic+indicators+in+Stardust&rft.au=Gainsforth%2C+Z%3BButterworth%2C+A+L%3BBrownlee%2C+D+E%3BHuss%2C+G+R%3BJoswiak%2C+D%3BNagashima%2C+K%3BOgliore%2C+R+C%3BTyliczszak%2C+T%3BWestphal%2C+A+J%3BAnonymous&rft.aulast=Gainsforth&rft.aufirst=Z&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A72&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 75th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkaline earth metals; chromite; cometary dust; comets; cooling; geologic thermometry; indicators; iron; low-grade metamorphism; magnesium; metals; metamorphism; mineral assemblages; nesosilicates; olivine; olivine group; orthosilicates; oxides; parent bodies; partitioning; silicates; Stardust Mission; temperature; thermal alteration; thermal history; thermal metamorphism; transport; Wild 2 Comet DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Organic analysis of xenolithic clasts in meteorites AN - 1535204782; 2014-040165 JF - Meteoritics & Planetary Science AU - Kebukawa, Y AU - Zolensky, M E AU - Fries, M D AU - Steele, A AU - Kilcoyne, A L D AU - Cody, G D AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - ordinary chondrites KW - stony meteorites KW - Kuiper Belt KW - infrared spectra KW - Cold Bokkeveld Meteorite KW - XANES spectra KW - meteorites KW - FTIR spectra KW - howardite KW - inclusions KW - Sharps Meteorite KW - spectra KW - chondrites KW - Kapoeta Meteorite KW - xenoliths KW - Zag Meteorite KW - parent bodies KW - thermal metamorphism KW - H chondrites KW - carbonaceous chondrites KW - metamorphism KW - achondrites KW - X-ray spectra KW - organic compounds KW - petrography KW - CM chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535204782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Organic+analysis+of+xenolithic+clasts+in+meteorites&rft.au=Kebukawa%2C+Y%3BZolensky%2C+M+E%3BFries%2C+M+D%3BSteele%2C+A%3BKilcoyne%2C+A+L+D%3BCody%2C+G+D%3BAnonymous&rft.aulast=Kebukawa&rft.aufirst=Y&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A121&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 4 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - achondrites; carbonaceous chondrites; chondrites; CM chondrites; Cold Bokkeveld Meteorite; FTIR spectra; H chondrites; howardite; inclusions; infrared spectra; Kapoeta Meteorite; Kuiper Belt; metamorphism; meteorites; ordinary chondrites; organic compounds; parent bodies; petrography; Sharps Meteorite; spectra; stony meteorites; thermal metamorphism; X-ray spectra; XANES spectra; xenoliths; Zag Meteorite DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Correlated nucleosynthetic isotope variability in Cr, Sr, Ba, Sm, Nd, and Hf in Murchison and QUE 97008 AN - 1535202524; 2014-040414 JF - Meteoritics & Planetary Science AU - Qin, L AU - Carlson, R W AU - Alexander, C M O AU - Anonymous Y1 - 2011/07// PY - 2011 DA - July 2011 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 46, SUPPL. SN - 1086-9379, 1086-9379 KW - stony meteorites KW - isotopes KW - thermal ionization mass spectra KW - mass spectra KW - Murchison Meteorite KW - meteorites KW - hafnium KW - barium KW - insoluble residues KW - spectra KW - samarium KW - rare earths KW - chondrites KW - chromium KW - alkaline earth metals KW - anomalies KW - QUE 97008 KW - nucleosynthesis KW - carbonaceous chondrites KW - ICP mass spectra KW - metals KW - Queen Alexandra Range Meteorites KW - CM chondrites KW - neodymium KW - strontium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1535202524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Correlated+nucleosynthetic+isotope+variability+in+Cr%2C+Sr%2C+Ba%2C+Sm%2C+Nd%2C+and+Hf+in+Murchison+and+QUE+97008&rft.au=Qin%2C+L%3BCarlson%2C+R+W%3BAlexander%2C+C+M+O%3BAnonymous&rft.aulast=Qin&rft.aufirst=L&rft.date=2011-07-01&rft.volume=46%2C+SUPPL.&rft.issue=&rft.spage=A194&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01241.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 74th annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - PubXState - AR N1 - Last updated - 2014-06-13 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkaline earth metals; anomalies; barium; carbonaceous chondrites; chondrites; chromium; CM chondrites; hafnium; ICP mass spectra; insoluble residues; isotopes; mass spectra; metals; meteorites; Murchison Meteorite; neodymium; nucleosynthesis; QUE 97008; Queen Alexandra Range Meteorites; rare earths; samarium; spectra; stony meteorites; strontium; thermal ionization mass spectra DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01241.x ER - TY - JOUR T1 - Measurement of c-axis angular orientation in calcite (CaCO (sub 3) ) nanocrystals using X-ray absorption spectroscopy AN - 1553087589; 2014-063052 AB - We demonstrate that the ability to manipulate the polarization of synchrotron radiation can be exploited to enhance the capabilities of X-ray absorption near-edge structure (XANES) spectroscopy, to include linear dichroism effects. By acquiring spectra at the same photon energies but different polarizations, and using a photoelectron emission spectromicroscope (PEEM), one can quantitatively determine the angular orientation of micro- and nanocrystals with a spatial resolution down to 10 nm. XANES-PEEM instruments are already present at most synchrotrons, hence these methods are readily available. The methods are demonstrated here on geologic calcite (CaCO3) and used to investigate the prismatic layer of a mollusk shell, Pinctada fucata. These XANES-PEEM data reveal multiply oriented nanocrystals within calcite prisms, previously thought to be monocrystalline. The subdivision into multiply oriented nanocrystals, spread by more than 50 degrees , may explain the excellent mechanical properties of the prismatic layer, known for decades but never explained. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Gilbert, P U P A AU - Young, Anthony AU - Coppersmith, Susan N Y1 - 2011/06/27/ PY - 2011 DA - 2011 Jun 27 SP - 11350 EP - 11355 PB - National Academy of Sciences, Washington, DC VL - 108 IS - 28 SN - 0027-8424, 0027-8424 KW - optical spectra KW - crystal structure KW - X-ray absorption near-edge structure spectroscopy KW - XANES spectra KW - nanocrystals KW - X-ray photoelectron emission spectroscopy KW - Pinctada fucata KW - Invertebrata KW - spectra KW - Pteriidae KW - Mollusca KW - mesocrystals KW - biomineralization KW - shells KW - equations KW - X-ray spectra KW - Pinctada KW - measurement KW - calcite KW - Bivalvia KW - angular orientation KW - XANES KW - X-ray spectroscopy KW - crystallization KW - optical spectroscopy KW - spectroscopy KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1553087589?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Measurement+of+c-axis+angular+orientation+in+calcite+%28CaCO+%28sub+3%29+%29+nanocrystals+using+X-ray+absorption+spectroscopy&rft.au=Gilbert%2C+P+U+P+A%3BYoung%2C+Anthony%3BCoppersmith%2C+Susan+N&rft.aulast=Gilbert&rft.aufirst=P+U+P&rft.date=2011-06-27&rft.volume=108&rft.issue=28&rft.spage=11350&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.1107917108 L2 - http://www.pnas.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2014-08-14 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - angular orientation; biomineralization; Bivalvia; calcite; carbonates; crystal structure; crystallization; equations; Invertebrata; measurement; mesocrystals; Mollusca; nanocrystals; optical spectra; optical spectroscopy; Pinctada; Pinctada fucata; Pteriidae; shells; spectra; spectroscopy; X-ray absorption near-edge structure spectroscopy; X-ray photoelectron emission spectroscopy; X-ray spectra; X-ray spectroscopy; XANES; XANES spectra DO - http://dx.doi.org/10.1073/pnas.1107917108 ER - TY - JOUR T1 - Low dose radiation response curves, networks and pathways in human lymphoblastoid cells exposed from 1 to 10cGy of acute gamma radiation AN - 899141188; 15160936 AB - We investigated the low dose dependency of the transcriptional response of human cells to characterize the shape and biological functions associated with the dose-response curve and to identify common and conserved functions of low dose expressed genes across cells and tissues. Human lymphoblastoid (HL) cells from two unrelated individuals were exposed to graded doses of radiation spanning the range of 1-10cGy were analyzed by transcriptome profiling, qPCR and bioinformatics, in comparison to sham irradiated samples. A set of a arrow right 480 genes showed consistent responses in both cell lines; these genes were associated with homeostasis mechanisms (e.g., membrane signaling, molecule transport), subcellular locations (e.g., Golgi, and endoplasmic reticulum), and involved diverse signal transduction pathways. The majority of radiation-modulated genes had plateau-like responses across 1-10cGy, some with suggestive evidence that transcription was modulated at doses below 1cGy. MYC, FOS and TP53 were the major network nodes of the low-dose-response in HL cells. Comparison our low dose expression findings in HL cells with those of prior studies in mouse brain after whole body exposure, in human keratinocyte cultures, and in endothelial cells cultures, indicates that certain components of the low dose radiation response are broadly conserved across cell types and tissues, independent of proliferation status. JF - Mutation Research/Genetic Toxicology and Environmental Mutagenesis AU - Wyrobek, A J AU - Manohar, C F AU - Krishnan, V V AU - Nelson, DO AU - Furtado, M R AU - Bhattacharya AU - Marchetti, F AU - Coleman, MA AD - Biosciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94550, United States, ajwyrobek@lbl.gov Y1 - 2011/06/17/ PY - 2011 DA - 2011 Jun 17 SP - 119 EP - 130 PB - Elsevier B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 722 IS - 2 SN - 1383-5718, 1383-5718 KW - Genetics Abstracts; Toxicology Abstracts KW - Golgi apparatus KW - Brain KW - Transcription KW - Cell culture KW - Homeostasis KW - p53 protein KW - Fos protein KW - Mutagenesis KW - Myc protein KW - Endothelial cells KW - Gene expression KW - Endoplasmic reticulum KW - Dose dependency KW - gamma Radiation KW - Bioinformatics KW - Keratinocytes KW - Cell proliferation KW - Nodes KW - Signal transduction KW - X 24390:Radioactive Materials KW - G 07710:Chemical Mutagenesis & Radiation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899141188?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mutation+Research%2FGenetic+Toxicology+and+Environmental+Mutagenesis&rft.atitle=Low+dose+radiation+response+curves%2C+networks+and+pathways+in+human+lymphoblastoid+cells+exposed+from+1+to+10cGy+of+acute+gamma+radiation&rft.au=Wyrobek%2C+A+J%3BManohar%2C+C+F%3BKrishnan%2C+V+V%3BNelson%2C+DO%3BFurtado%2C+M+R%3BBhattacharya%3BMarchetti%2C+F%3BColeman%2C+MA&rft.aulast=Wyrobek&rft.aufirst=A&rft.date=2011-06-17&rft.volume=722&rft.issue=2&rft.spage=119&rft.isbn=&rft.btitle=&rft.title=Mutation+Research%2FGenetic+Toxicology+and+Environmental+Mutagenesis&rft.issn=13835718&rft_id=info:doi/10.1016%2Fj.mrgentox.2011.03.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Golgi apparatus; Brain; Transcription; Cell culture; Homeostasis; Mutagenesis; Fos protein; p53 protein; Gene expression; Endothelial cells; Myc protein; Dose dependency; Endoplasmic reticulum; gamma Radiation; Keratinocytes; Bioinformatics; Nodes; Cell proliferation; Signal transduction DO - http://dx.doi.org/10.1016/j.mrgentox.2011.03.002 ER - TY - JOUR T1 - Uncertainty reduction of hydrologic models using data from surface-based investigation AN - 876231908; 14893925 AB - Geohydrologic model uncertainties include permeability, boundary, and initial conditions as well as the conceptual model it is based on. We present some examples of using information other than pressure data to constrain a geohydrologic model of the Horonobe area in Hokkaido, Japan. The initial model was constructed using information from surface geology and a few boreholes. Inversion analysis of pressure data implied the existence of a low-permeability cap rock. We then used river flow data and temperature data from a hot spring as a basis for estimating the recharge flux, which suggested that the overall permeability of the modeled area could be one order of magnitude larger than that of the base model. Next, we simulated a saltwater washout process and compared the simulated salinity distribution with the salinity data from a borehole. We found that a better match to the salinity data is obtained if the increase in permeability is taken up by a localized fault zone rather than uniformly by the entire model. A smaller-scale match to the temperature, pressure, and density profiles from two boreholes indicated that there was a low-permeability fault in between the two boreholes. The present study demonstrates that pressure data alone are insufficient to calibrate a model, and that additional observations are needed to accurately represent a site. JF - Journal of Hydrology (Amsterdam) AU - Karasaki, Kenzi AU - Ito, Kazumasa AU - Wu, Yu-Shu AU - Shimo, Michito AU - Sawada, Atsushi AU - Maekawa, Keisuke AU - Hatanaka, Koichiro AD - Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States, kkarasaki@lbl.giv Y1 - 2011/06/06/ PY - 2011 DA - 2011 Jun 06 SP - 49 EP - 57 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 403 IS - 1-2 SN - 0022-1694, 0022-1694 KW - ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Aqualine Abstracts; Meteorological & Geoastrophysical Abstracts; Water Resources Abstracts KW - Hot springs KW - Freshwater KW - Boreholes KW - Permeability KW - Salinity KW - Hydrologic Models KW - Washout KW - Hydrology KW - River Flow KW - Geology KW - Density profiles KW - Pressure data KW - Initial conditions KW - Japan, Hokkaido KW - Salinity distribution KW - Temperature data KW - Hydrologic models KW - Recharge KW - Geologic Fractures KW - River flow KW - Estimating KW - Temperature KW - River discharge KW - Inversions KW - Salinity data KW - boreholes KW - Inversion KW - Fault zones KW - Cap rocks KW - AQ 00001:Water Resources and Supplies KW - Q2 09270:Seismology KW - SW 0835:Streamflow and runoff KW - ENA 12:Oceans & Estuaries KW - M2 556.1:Hydrologic Cycle (556.1) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876231908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology+%28Amsterdam%29&rft.atitle=Uncertainty+reduction+of+hydrologic+models+using+data+from+surface-based+investigation&rft.au=Karasaki%2C+Kenzi%3BIto%2C+Kazumasa%3BWu%2C+Yu-Shu%3BShimo%2C+Michito%3BSawada%2C+Atsushi%3BMaekawa%2C+Keisuke%3BHatanaka%2C+Koichiro&rft.aulast=Karasaki&rft.aufirst=Kenzi&rft.date=2011-06-06&rft.volume=403&rft.issue=1-2&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology+%28Amsterdam%29&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2011.03.039 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Salinity data; Permeability; Fault zones; River discharge; Hydrology; Density profiles; Cap rocks; Boreholes; Inversions; River flow; Washout; Initial conditions; Pressure data; Salinity distribution; Temperature data; Hydrologic models; Salinity; boreholes; Inversion; Temperature; Hot springs; Geology; Recharge; Geologic Fractures; Hydrologic Models; Estimating; River Flow; Japan, Hokkaido; Freshwater DO - http://dx.doi.org/10.1016/j.jhydrol.2011.03.039 ER - TY - JOUR T1 - Stability, accuracy, and efficiency of sequential methods for coupled flow and geomechanics AN - 904459020; 2011-099299 AB - We perform detailed stability and convergence analyses of sequential-implicit solution methods for coupled fluid flow and reservoir geomechanics. We analyze four different sequential-implicit solution strategies, where each subproblem (flow and mechanics) is solved implicitly: two schemes in which the mechanical problem is solved first--namely, the drained and undrained splits--and two schemes in which the flow problem is solved first--namely, the fixed-strain and fixed-stress splits. The von Neumann method is used to obtain the linear-stability criteria of the four sequential schemes, and numerical simulations are used to test the validity and sharpness of these criteria for representative problems. The analysis indicates that the drained and fixed-strain splits, which are commonly used, are conditionally stable and that the stability limits depend only on the strength of coupling between flow and mechanics and are independent of the timestep size. Therefore, the drained and fixed-strain schemes cannot be used when the coupling between flow and mechanics is strong. Moreover, numerical solutions obtained using the drained and fixed-strain sequential schemes suffer from oscillations, even when the stability limit is honored. For problems where the deformation may be plastic (nonlinear) in nature, the drained and fixed-strain sequential schemes become unstable when the system enters the plastic regime. On the other hand, the undrained and fixed-stress sequential schemes are unconditionally stable regardless of the coupling strength, and they do not suffer from oscillations. While both the undrained and fixed-stress schemes are unconditionally stable, for the cases investigated we found that the fixed-stress split converges more rapidly than the undrained split. On the basis of these findings, we strongly recommend the fixed-stress sequential-implicit method for modeling coupled flow and geomechanics in reservoirs. JF - SPE Journal AU - Kim, J AU - Tchelepi, H A AU - Juanes, R Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 249 EP - 262 PB - Society of Petroleum Engineers, Richardson, TX VL - 16 IS - 2 SN - 1086-055X, 1086-055X KW - methods KW - failures KW - petroleum engineering KW - elasticity KW - iterative methods KW - von Neumann method KW - poroelasticity KW - stress KW - oil sands KW - heavy oil KW - mathematical models KW - equations KW - deformation KW - two-dimensional models KW - compaction KW - oil wells KW - sedimentary rocks KW - discretization KW - reservoir properties KW - plasticity KW - accuracy KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904459020?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SPE+Journal&rft.atitle=Stability%2C+accuracy%2C+and+efficiency+of+sequential+methods+for+coupled+flow+and+geomechanics&rft.au=Kim%2C+J%3BTchelepi%2C+H+A%3BJuanes%2C+R&rft.aulast=Kim&rft.aufirst=J&rft.date=2011-06-01&rft.volume=16&rft.issue=2&rft.spage=249&rft.isbn=&rft.btitle=&rft.title=SPE+Journal&rft.issn=1086055X&rft_id=info:doi/10.2118%2F119084-PA L2 - http://www.spe.org/papers/pubs/SPEjournal.php LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 51 N1 - PubXState - TX N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - SPE 119084 presented at SPE Reservoir simulation symposium, The Woodlands, TX, Feb. 2-4, 2009 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accuracy; compaction; deformation; discretization; elasticity; equations; failures; heavy oil; iterative methods; mathematical models; methods; oil sands; oil wells; permeability; petroleum engineering; plasticity; poroelasticity; reservoir properties; sedimentary rocks; stress; two-dimensional models; von Neumann method DO - http://dx.doi.org/10.2118/119084-PA ER - TY - JOUR T1 - Composition, stability, and measurement of reduced uranium phases for ground water bioremediation at Old Rifle, CO AN - 886909229; 2011-075012 AB - Reductive biostimulation is currently being explored as a possible remediation strategy for U-contaminated groundwater, and is being investigated at a field site in Rifle, CO, USA. The long-term stability of the resulting U(IV) phases is a key component of the overall performance of the remediation approach and depends upon a variety of factors, including rate and mechanism of reduction, mineral associations in the subsurface, and propensity for oxidation. To address these factors, several approaches were used to evaluate the redox sensitivity of U: (1) measurement of the rate of oxidative dissolution of biogenic uraninite (UO (sub 2(s)) ) deployed in groundwater at Rifle, (2) characterization of a zone of natural bioreduction exhibiting relevant reduced mineral phases, and (3) laboratory studies of the oxidative capacity of Fe(III) and reductive capacity of Fe(II) with regard to U(IV) and U(VI), respectively. JF - Applied Geochemistry AU - Campbell, K M AU - Davis, J A AU - Bargar, J AU - Giammar, D AU - Bernier-Latmani, R AU - Kukkadapu, R AU - Williams, K H AU - Veramani, H AU - Ulrich, K U AU - Stubbs, J AU - Yabusaki, S AU - Figueroa, L AU - Lesher, E AU - Wilkins, M J AU - Peacock, A AU - Long, P E A2 - Anderson, Suzanne P. A2 - Gislason, Sigurdur Reynir Y1 - 2011/06// PY - 2011 DA - June 2011 SP - S167 EP - S169 PB - Elsevier, Oxford-New York-Beijing VL - 26 IS - Suppl. SN - 0883-2927, 0883-2927 KW - United States KW - Old Rifle KW - Garfield County Colorado KW - biomass KW - environmental analysis KW - remediation KW - ground water KW - Rifle Colorado KW - phase equilibria KW - oxides KW - reduction KW - water pollution KW - kinetics KW - geochemistry KW - pH KW - Eh KW - pollutants KW - pollution KW - bioremediation KW - hydrochemistry KW - metals KW - uranium KW - Colorado KW - uraninite KW - nanoparticles KW - actinides KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/886909229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Geochemistry&rft.atitle=Composition%2C+stability%2C+and+measurement+of+reduced+uranium+phases+for+ground+water+bioremediation+at+Old+Rifle%2C+CO&rft.au=Campbell%2C+K+M%3BDavis%2C+J+A%3BBargar%2C+J%3BGiammar%2C+D%3BBernier-Latmani%2C+R%3BKukkadapu%2C+R%3BWilliams%2C+K+H%3BVeramani%2C+H%3BUlrich%2C+K+U%3BStubbs%2C+J%3BYabusaki%2C+S%3BFigueroa%2C+L%3BLesher%2C+E%3BWilkins%2C+M+J%3BPeacock%2C+A%3BLong%2C+P+E&rft.aulast=Campbell&rft.aufirst=K&rft.date=2011-06-01&rft.volume=26&rft.issue=Suppl.&rft.spage=S167&rft.isbn=&rft.btitle=&rft.title=Applied+Geochemistry&rft.issn=08832927&rft_id=info:doi/10.1016%2Fj.apgeochem.2011.03.094 L2 - http://www.sciencedirect.com/science/journal/08832927 LA - English DB - GeoRef N1 - Conference title - Ninth international symposium on the Geochemistry of the Earth's surface N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 11 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; biomass; bioremediation; Colorado; Eh; environmental analysis; Garfield County Colorado; geochemistry; ground water; hydrochemistry; kinetics; metals; nanoparticles; Old Rifle; oxides; pH; phase equilibria; pollutants; pollution; reduction; remediation; Rifle Colorado; United States; uraninite; uranium; water pollution DO - http://dx.doi.org/10.1016/j.apgeochem.2011.03.094 ER - TY - JOUR T1 - Modified Generalized Likelihood Uncertainty Estimation (GLUE) Methodology for Considering the Subjectivity of Likelihood Measure Selection AN - 883034026; 15357762 AB - The generalized likelihood uncertainty estimation (GLUE) methodology has been widely used in many areas as an effective and general strategy for model calibration and uncertainty estimation associated with complex models. The application of GLUE requires a formal definition of a likelihood measure. However, it has been recognized that the choice of a likelihood measure is inherently subjective. This, in turn, introduces a new kind of uncertainty-the uncertainty owing to the lack of knowledge in choosing the true likelihood measure in the GLUE methodology. This study proposes a practical framework to address this uncertainty by using multiple likelihood measures, analogous to considering multiple expert opinions. The final uncertainty probability estimates are then obtained by combining the estimates from individual likelihood measures based on probability theory. JF - Journal of Hydrologic Engineering AU - Zhang, Yingqi AU - Liu, Hui-Hai AU - Houseworth, James AD - Research Scientist, Lawrence Berkeley National Laboratory (LBNL), Earth Sciences Division (ESD), MS 90R1116, 1 Cyclotron Road, Berkeley, CA 94720-8126, yqzhang@lbl.gov Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 558 EP - 561 PB - American Society of Civil Engineers, 345 E. 47th St. New York NY 10017-2398 United States VL - 16 IS - 6 SN - 1943-5584, 1943-5584 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Uncertainty principles KW - Decision making KW - Estimation KW - Hydrology KW - Engineering KW - Calibrations KW - Probability theory KW - Modelling KW - Methodology KW - AQ 00001:Water Resources and Supplies KW - Q2 09282:Materials technology, corrosion, fouling and boring KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883034026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrologic+Engineering&rft.atitle=Modified+Generalized+Likelihood+Uncertainty+Estimation+%28GLUE%29+Methodology+for+Considering+the+Subjectivity+of+Likelihood+Measure+Selection&rft.au=Zhang%2C+Yingqi%3BLiu%2C+Hui-Hai%3BHouseworth%2C+James&rft.aulast=Zhang&rft.aufirst=Yingqi&rft.date=2011-06-01&rft.volume=16&rft.issue=6&rft.spage=558&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrologic+Engineering&rft.issn=19435584&rft_id=info:doi/10.1061%2F%28ASCE%29HE.1943-5584.0000341 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2017-02-15 N1 - SubjectsTermNotLitGenreText - Probability theory; Methodology; Modelling; Engineering; Calibrations DO - http://dx.doi.org/10.1061/(ASCE)HE.1943-5584.0000341 ER - TY - JOUR T1 - Influence of liquid structure on diffusive isotope separation in molten silicates and aqueous solutions AN - 881449889; 2011-064391 AB - Molecular diffusion in natural volcanic liquids discriminates between isotopes of major ions (e.g., Fe, Mg, Ca, and Li). Although isotope separation by diffusion is expected on theoretical grounds, the dependence on mass is highly variable for different elements and in different media. Silicate liquid diffusion experiments using simple liquid compositions were carried out to further probe the compositional dependence of diffusive isotopic discrimination and its relationship to liquid structure. Two diffusion couples consisting of the mineral constituents anorthite (CaAl (sub 2) Si (sub 2) O (sub 8) ; denoted AN), albite (NaAlSi (sub 3) O (sub 8) ; denoted AB), and diopside (CaMgSi (sub 2) O (sub 6) ; denoted DI) were held at 1450 degrees C for 2 h and then quenched to ambient pressure and temperature. Major-element as well as Ca and Mg isotope profiles were measured on the recovered quenched glasses. In both experiments, Ca diffuses rapidly with respect to Si. In the AB-AN experiment, D (sub Ca) /D (sub Si) nearly equal 20 and the efficiency of isotope separation for Ca is much greater than in natural liquid experiments where D (sub Ca) /D (sub Si) nearly equal 1. In the AB-DI experiment, D (sub Ca) /D (sub Si) nearly equal 6 and the efficiency of isotope separation is between that of the natural liquid experiments and the AB-AN experiment. In the AB-DI experiment, D (sub Mg) /D (sub Si) nearly equal 1 and the efficiency of isotope separation for Mg is smaller than it is for Ca yet similar to that observed for Mg in natural liquids. The results from the experiments reported here, in combination with results from natural volcanic liquids, show clearly that the efficiency of diffusive separation of Ca isotopes is systematically related to the solvent-normalized diffusivity - the ratio of the diffusivity of the cation (D (sub Ca) ) to the diffusivity of silicon (D (sub Si) ). The results on Ca isotopes are consistent with available data on Fe, Li, and Mg isotopes in silicate liquids, when considered in terms of the parameter D (sub cation) /D (sub Si) . Cations diffusing in aqueous solutions display a similar relationship between isotopic separation efficiency and D (sub cation) /D (sub H2O) , although the efficiencies are smaller than in silicate liquids. Our empirical relationship provides a tool for predicting the magnitude of diffusive isotopic effects in many geologic environments and a basis for a more comprehensive theory of isotope separation in liquid solutions. We present a conceptual model for the relationship between diffusivity and liquid structure that is consistent with available data. JF - Geochimica et Cosmochimica Acta AU - Watkins, James M AU - DePaolo, Donald J AU - Ryerson, Frederick J AU - Peterson, Brook T Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 3103 EP - 3118 PB - Elsevier, New York, NY VL - 75 IS - 11 SN - 0016-7037, 0016-7037 KW - silicates KW - calcium KW - magnesium KW - isotopes KW - aqueous solutions KW - stable isotopes KW - melts KW - electron probe data KW - anorthite KW - pyroxene group KW - clinopyroxene KW - major elements KW - framework silicates KW - mineral assemblages KW - diopside KW - chemical composition KW - geochemistry KW - P-T conditions KW - diffusivity KW - chain silicates KW - liquid phase KW - alkaline earth metals KW - plagioclase KW - experimental studies KW - diffusion KW - isotope ratios KW - silicate melts KW - separation KW - hydrochemistry KW - models KW - Ca-44/Ca-40 KW - Mg-26/Mg-24 KW - metals KW - feldspar group KW - 01B:Mineralogy of silicates KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881449889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Influence+of+liquid+structure+on+diffusive+isotope+separation+in+molten+silicates+and+aqueous+solutions&rft.au=Watkins%2C+James+M%3BDePaolo%2C+Donald+J%3BRyerson%2C+Frederick+J%3BPeterson%2C+Brook+T&rft.aulast=Watkins&rft.aufirst=James&rft.date=2011-06-01&rft.volume=75&rft.issue=11&rft.spage=3103&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.03.002 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 66 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; anorthite; aqueous solutions; Ca-44/Ca-40; calcium; chain silicates; chemical composition; clinopyroxene; diffusion; diffusivity; diopside; electron probe data; experimental studies; feldspar group; framework silicates; geochemistry; hydrochemistry; isotope ratios; isotopes; liquid phase; magnesium; major elements; melts; metals; Mg-26/Mg-24; mineral assemblages; models; P-T conditions; plagioclase; pyroxene group; separation; silicate melts; silicates; stable isotopes DO - http://dx.doi.org/10.1016/j.gca.2011.03.002 ER - TY - JOUR T1 - Deformation twinning and residual stress in calcite studied with synchrotron polychromatic X-ray microdiffraction AN - 1502292231; 2014-013357 AB - Microstructures of deformed calcite in marble from the Bergell Alps are studied by using a microfocused polychromatic synchrotron X-ray beam. The high spatial resolution, together with orientation and strain resolutions, reveals twin plane orientation, multiple twin lamellae, and strain distributions associated with the twins. Single and multiple mechanical twins on e = {0118} systems are confirmed. Residual stresses are derived from the strain tensor that is derived from Laue diffraction patterns. Average lattice strains from several hundred to over one thousand microstrains are detected in a deformed marble from the Bergell Alps. Such strains suggest 60-120 MPa residual stresses. A detailed study of strain components shows that shear stresses on twin planes are completely released. Copyright 2011 Springer-Verlag and The Author(s) JF - Physics and Chemistry of Minerals AU - Chen, Kai AU - Kunz, Martin AU - Tamura, Nobumichi AU - Wenk, Hans-Rudolf Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 491 EP - 500 PB - Springer-Verlag, Berlin - New York VL - 38 IS - 6 SN - 0342-1791, 0342-1791 KW - limestone KW - X-ray diffraction data KW - Alps KW - natural materials KW - stress KW - Europe KW - crystal growth KW - recrystallization KW - twinning KW - Switzerland KW - Mesozoic KW - calcite KW - synchrotron radiation KW - Swiss Alps KW - sedimentary rocks KW - Southern Swiss Alps KW - Bergell Massif KW - quantitative analysis KW - Triassic KW - Central Europe KW - carbonate rocks KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1502292231?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Deformation+twinning+and+residual+stress+in+calcite+studied+with+synchrotron+polychromatic+X-ray+microdiffraction&rft.au=Chen%2C+Kai%3BKunz%2C+Martin%3BTamura%2C+Nobumichi%3BWenk%2C+Hans-Rudolf&rft.aulast=Chen&rft.aufirst=Kai&rft.date=2011-06-01&rft.volume=38&rft.issue=6&rft.spage=491&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-011-0422-7 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Date revised - 2014-01-01 N1 - Number of references - 35 N1 - Last updated - 2014-09-18 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - Alps; Bergell Massif; calcite; carbonate rocks; carbonates; Central Europe; crystal growth; Europe; limestone; Mesozoic; natural materials; quantitative analysis; recrystallization; sedimentary rocks; Southern Swiss Alps; stress; Swiss Alps; Switzerland; synchrotron radiation; Triassic; twinning; X-ray diffraction data DO - http://dx.doi.org/10.1007/s00269-011-0422-7 ER - TY - JOUR T1 - New Concepts and Materials for Solar Power Conversion AN - 1417875135; 17725619 AB - Efficient conversion of solar photons into other forms of energy has become one of the primary objectives of the modern science and technology. In the presentation I will briefly review the various large scale energy related research projects at Berkeley. The core presentation will focus on methods to engineer the energy band structure of semiconductor materials for specific energy related applications. I will discuss recent progress on applications of group III-nitride semiconductor alloys for full solar spectrum, high efficiency multijunction solar cells. The second part of the presentation will discuss the recent advances in using highly mismatched semiconductor alloys for intermediate band solar cells. I will present most recent results on demonstration of the first intermediate band photovoltaic device.1 Finally, I will discuss potential applications of the highly mismatched alloys for the photoelectrochemical solar water splitting. In collaboration with Solar Energy Materials Research Group (http://emat-solar.lbl.gov/). JF - Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P.O. Box 430 Warrendale PA 15086 United States. [np]. Jun 2011. AU - Walukiewicz, Wladek AD - Lawrence Berkeley National Laboratory Y1 - 2011/06// PY - 2011 DA - Jun 2011 PB - Minerals, Metals and Materials Society/AIME, 420 Commonwealth Dr., P.O. Box 430 Warrendale PA 15086 United States KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA) KW - Photons KW - Semiconductor materials KW - Solar cells KW - Energy of formation KW - Energy management KW - Semiconductors KW - Alloys KW - Photovoltaic cells UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1417875135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=New+Concepts+and+Materials+for+Solar+Power+Conversion&rft.au=Walukiewicz%2C+Wladek&rft.aulast=Walukiewicz&rft.aufirst=Wladek&rft.date=2011-06-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-08-01 N1 - Last updated - 2013-09-05 ER - TY - JOUR T1 - Wettability alteration upon reaction with scCO (sub 2) ; pore scale visualization and contact angle measurements AN - 1287376575; 2013-017358 AB - The interfacial forces among reservoir mineral substrates, brine and supercritical (sc) CO (sub 2) can greatly affect the distribution of scCO (sub 2) injected in geological formations for its sequestration. When brine and scCO (sub 2) contact with a substrate, the equilibrium configuration among the three interfacial tensions determines the wetting property (contact angle) of the substrate. The contact angle together with the pore size distribution determines the distribution of capillary entry pressures for porous media. Therefore, contact angles in the mineral-brine-scCO (sub 2) system control the pore-scale advance of the scCO (sub 2) -brine interface during injection, structure trapping of CO (sub 2) at reservoir-caprock boundaries, and residual trapping of scCO (sub 2) at later stages of geologic sequestration. The wetting behavior of scCO (sub 2) in contact with caprocks is especially important because it is a primary factor controlling CO (sub 2) leakage from reservoirs to the land surface and atmosphere. Although CO (sub 2) is commonly assumed to be the non-wetting phase in the current predictive models for CO (sub 2) storage capacity, recent studies have begun to show that the wettability of caprock minerals can be altered in the presence of scCO (sub 2) under pressures and temperatures representative of geological storage conditions. Understanding is critically needed on how and to what degrees chemical reactions and physical processes in the deep reservoirs affect the wetting properties of rock surface. Such understanding will enable more reliable estimates of CO (sub 2) residual saturations and capillary threshold pressures needed for predicting larger scale system behavior. We studied silica wettability alteration within single pores containing brine and scCO (sub 2) under flow conditions, using engineered transparent micromodels. The process of scCO (sub 2) injection into an initially brine saturated silica porous network (pore throat and body sizes are 30 and 120 mu m, respectively) was conducted under controlled P and T. We observed (1) the CO (sub 2) phase entering pores, displacing brine, and leaving initially smooth brine films coating silica pore walls with the contact angle q close to zero, and (2) over longer times (CO (sub 2) diffused into brine films), the brine films contracted into small brine-droplets as a result of decreased wettability (increased q). At steady state, the q values of these brine-droplets are 49 degrees + or -10 degrees for the 1.0 M, and 70 degrees + or -7 degrees for 5.0 M NaCl. We hypothesize that neutralization of the silica surfaces resulting from brine film acidification by CO (sub 2) is responsible for the observed wettability alteration. JF - Mineralogical Magazine AU - Wan, Jiamin AU - Kim, Yongman AU - Jung, Jongwon AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 2111 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - alteration KW - neutralization KW - carbon sequestration KW - underground storage KW - injection KW - porosity KW - carbon dioxide KW - visualization KW - substrates KW - chemical reactions KW - silica KW - brines KW - underground installations KW - interfaces KW - wettability KW - acidification KW - supercritical fluids KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287376575?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Wettability+alteration+upon+reaction+with+scCO+%28sub+2%29+%3B+pore+scale+visualization+and+contact+angle+measurements&rft.au=Wan%2C+Jiamin%3BKim%2C+Yongman%3BJung%2C+Jongwon%3BAnonymous&rft.aulast=Wan&rft.aufirst=Jiamin&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=2111&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2106.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-02-14 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - acidification; alteration; brines; carbon dioxide; carbon sequestration; chemical reactions; geochemistry; injection; interfaces; neutralization; porosity; silica; substrates; supercritical fluids; underground installations; underground storage; visualization; wettability ER - TY - JOUR T1 - Sum Frequency Vibrational Spectroscopy (SFVS) of water and hydroxyls on the corundum (1102) surface; acid-base properties from direct observation of protonation states AN - 1287375615; 2013-017409 AB - SFVS is a powerful tool for quantitative measurement of protonated functional groups on mineral surfaces, especially when used in a phase-sensitive mode [1]. This is demonstrated for the corundum (1102) interface where the orientation and nature of surface hydroxyls on the dry protonated surface can be obtained and compared with models for the surface termination derived from crystal truncation rod (CTR), X-ray reflectivity (XRR) measurements, and with the most likely functional group assignments [2]. Hydroxyl orientations are determined from pole-figure type measurements of the magnitude of the non-linear optical susceptibility for each band, and the polar orientation (up-down with respect to the z-direction) is determined from measurements of the imaginary part of the susceptibility. A scheme for describing the hydrogen bonding among these protonated groups is found to be consistent with surface symmetry and the particular vibrational frequencies observed. The addition of water to the interface alters the hydrogen bonding of the hydroxyls and introduces water-functional group hydrogen bonding [3]. Direct measurement of the SFVS hydroxyl and water band amplitudes as a function of pH can be used to test the expected pKa values for the functional groups, and hence link interfacial acid-base properties to precise molecular surface entities and their protonation states. This research has been in part supported by the Division of Chemical Sciences, Geosciences and Biosciences, Office of Basic Energy Sciences, U.S. Department of Energy. JF - Mineralogical Magazine AU - Waychunas, G A AU - Sung, J AU - Shen, Y R AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 2137 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - water KW - hydroxyl ion KW - Sum Frequency Vibrational Spectroscopy KW - vibrational spectra KW - SFVS method KW - oxides KW - spectra KW - bonding KW - protons KW - corundum KW - mineral surface KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287375615?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Sum+Frequency+Vibrational+Spectroscopy+%28SFVS%29+of+water+and+hydroxyls+on+the+corundum+%281102%29+surface%3B+acid-base+properties+from+direct+observation+of+protonation+states&rft.au=Waychunas%2C+G+A%3BSung%2C+J%3BShen%2C+Y+R%3BAnonymous&rft.aulast=Waychunas&rft.aufirst=G&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=2137&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2106.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Number of references - 3 N1 - Last updated - 2013-02-14 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - bonding; corundum; hydroxyl ion; mineral surface; oxides; protons; SFVS method; spectra; Sum Frequency Vibrational Spectroscopy; vibrational spectra; water ER - TY - JOUR T1 - Combining NanoSIMS with STXM/TEM imaging to shed new light on organic matter contained in micron-sized particles AN - 1151915278; 2012-097591 AB - During the past 10 years, NanoSIMS has opened a new window on the study of the spatial distribution of light elements and their isotopic composition in natural samples. This instrument, with its high sensitivity, high precision and high spatial resolution, is suitable to study organic matter (OM) in meteorites and soil aggregates. Nevertheless, this technique suffers from the influence of the nature and the topography of the sample surface on the ion yield (the so called matrix effect) making the unambiguous characterization of the carbonaceous phases sometimes problematic. Moreover, the instrument cannot deliver molecular information, often required for the study of OM. We illustrate here, through several examples, the benefits to combine NanoSIMS imaging with TEM and STXM, in order to improve the characterization of the carbonaceous materials and to strengthen the conclusions arisen from NanoSIMS images. This is a challenging task because these cutting edge techniques, while sharing high spatial resolution capabilities, have very different instrumental constrains. The combination TEM+NanoSIMS was used to characterize the carbonaceous phases isolated from an Enstatite chondrite by HF/HCl dissolution. Graphite and poorly organised OM were identified by TEM (and Raman spectroscopy). With NanoSIMS, we measured the D/H and (super 13) C/ (super 12) C isotopic ratios along with the H/C and N/C elemental ratios of each phase, without ambiguity. Hence, we entirely characterized the carbonaceous phases separately to understand their relationship and origin. We could also assess the fate of labelled OM after a 10 years in situ incubation experiment in a natural forest by combining NanoSIMS and STXM. While NanoSIMS was able to map (super 15) N-labelled OM in soil microaggregates recovered from this forest, it has to be combined with STXM imaging (of the same aggregates) to reveal the molecular structure of the organic constituents. The combination of these instruments allows us to follow, at the submicron scale, the processes leading to the soil OM recycling. JF - Mineralogical Magazine AU - Remusat, L AU - Derrien, D AU - Hatton, P J AU - Nico, P AU - Rouzaud, J N AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 1709 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - experimental studies KW - stony meteorites KW - isotopes KW - isotope ratios KW - C-13/C-12 KW - TEM data KW - stable isotopes KW - molecular structure KW - meteorites KW - sample preparation KW - organic compounds KW - D/H KW - hydrogen KW - carbon KW - STXM data KW - NanoSIMS KW - enstatite chondrites KW - chondrites KW - nanoparticles KW - geochemistry KW - image analysis KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151915278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Combining+NanoSIMS+with+STXM%2FTEM+imaging+to+shed+new+light+on+organic+matter+contained+in+micron-sized+particles&rft.au=Remusat%2C+L%3BDerrien%2C+D%3BHatton%2C+P+J%3BNico%2C+P%3BRouzaud%2C+J+N%3BAnonymous&rft.aulast=Remusat&rft.aufirst=L&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=1709&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1685.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - C-13/C-12; carbon; chondrites; D/H; enstatite chondrites; experimental studies; geochemistry; hydrogen; image analysis; isotope ratios; isotopes; meteorites; molecular structure; nanoparticles; NanoSIMS; organic compounds; sample preparation; stable isotopes; stony meteorites; STXM data; TEM data ER - TY - JOUR T1 - Continuum model for diffusive transport in the electrical double layer and clay interlamellae AN - 1151913628; 2012-100046 AB - A continuum model for diffusive transport in the electrical double layer and the interlamellar space in clays is presented. The model makes use of a Donnan equilibrium assumption to calculate explicitly the composition of the diffuse double layer given an arbitrary bulk solution composition. In this approach, rather than solving the Poisson-Boltzmann equation explicitly, an average electrostatic potential corresponding to the double layer is computed. In the model, the double layer balances the charge of the mineral surface, which may be fixed charge (as in the case of ion exchange) or dynamically computed charge using a surface complexation model. In the case of clay interlamellae, the charge of the clay is fixed and the ions occupying the space are treated as part of a double layer that may or may not be overlapping. Diffusive transport is handled with the Nernst-Planck equation, with accounting for the local immobile charge of the mineral surface. The approach allows for modeling of anion exclusion in clay-rich materials, as well as ion exchange within clay interlamellae and edges. Based on the same theoretical foundations as the single-type porosity model developed by Birgersson and Karnland [1], this continuum model provides identical predictions as long as the entire pore space is assumed to be occupied by the electrical double diffuse layer as, e.g., in highly compacted clays. These predictions were in turn validated by comparison with diffusion experiments conducted by Van Loon et al. [2]. The present work also explores the limitations of a discrete two-type porosity model in reproducing the actual continuous distribution of ion concentrations over the pore space as obtained with analytical expressions for very simple cases involving a pore space confined between two parallel electrically charged walls and saturated with a binary salt. JF - Mineralogical Magazine AU - Galindez, J M AU - Steefel, C I AU - Maeder, U AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 884 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - electrical properties KW - diffusion KW - clay mineralogy KW - lamellae KW - porosity KW - clay minerals KW - theoretical models KW - sheet silicates KW - ion exchange KW - geochemistry KW - mineral surface KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151913628?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Continuum+model+for+diffusive+transport+in+the+electrical+double+layer+and+clay+interlamellae&rft.au=Galindez%2C+J+M%3BSteefel%2C+C+I%3BMaeder%2C+U%3BAnonymous&rft.aulast=Galindez&rft.aufirst=J&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=884&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/878.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - clay mineralogy; clay minerals; diffusion; electrical properties; geochemistry; ion exchange; lamellae; mineral surface; porosity; sheet silicates; silicates; theoretical models ER - TY - JOUR T1 - Calcium isotopes during coral biomineralization AN - 1151913522; 2012-100039 AB - A mechanistic understanding of biomineralization promises to separate biological and environmental signals in skeletal carbonates, improving the interpretation of paleoproxies. Towards this goal, we measure calcium isotope ratios of micromilled samples from modern scleractinian deep-sea coral, testing two questions in coral biomineralization. Is amorphous calcium carbonate (ACC) an important precursor during skeletal nucleation? Can reservoir effects (Rayleigh models) explain the biologically controlled variability of non-traditional stable isotopes. Centers of calcification (COCs) are morphologically and compositionally distinct regions of the coral skeleton associated with nucleation. To test if an ACC precursor phase can explain the geochemistry of COCs, we compare the calcium isotope ratios of COCs to synthetic ACC. The delta (super 44) Ca of COCs are similar to the surrounding skeleton and to inorganically precipitated aragonite, but are fractionated significantly more than inorganic ACC (Delta (super 44) Ca (sub COC-seawater) = -1.0 + or - 0.1 ppm while Delta (super 44) Ca (sub ACC-solution) < -0.2 ppm). If ACC is involved in skeletal nucleation, then the distinct calcium isotope signature of this phase is lost during subsequent phase transformation. As calcium is the major cation in aragonite, this presumably means the minor and trace element composition of an ACC phase would be altered as well, and suggests that ACC is unlikely to explain the compositional anomalies associated with COCs in coral. Even when grown under constant environmental conditions, metal/calcium ratios in deep-sea coral vary by more than 5 %. This variability can be explained by skeletal precipitation from closed batches of seawater or a more general steady-state reservoir effect where seawater transport to the site of calcification balances precipitation. Both models make similar predictions regarding calcium isotopes, higher skeletal Sr/Ca ratios should correlate with lighter delta (super 44) Ca. We observe this predicted trend in preliminary results from micromilled samples, suggesting that in addition to metal/calcium ratios, reservoir effect models of coral biomineralization may also explain the variability of some isotope systems. Analysis of coral from a range of conditions will test if we can recover biomineralization corrected records of seawater isotope ratios and environmental conditions. JF - Mineralogical Magazine AU - Gagnon, A C AU - DePaolo, D J AU - Adkins, J F AU - De Yoreo, J J AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 880 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - calcium KW - isotopes KW - Ca-44 KW - crystal growth KW - deep-sea environment KW - stable isotopes KW - modern KW - Zoantharia KW - Anthozoa KW - Invertebrata KW - ecology KW - calcium carbonate KW - geochemistry KW - biomineralization KW - alkaline earth metals KW - experimental studies KW - living taxa KW - amorphous materials KW - biochemistry KW - calcification KW - Scleractinia KW - metals KW - marine environment KW - Cnidaria KW - 10:Invertebrate paleontology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151913522?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Calcium+isotopes+during+coral+biomineralization&rft.au=Gagnon%2C+A+C%3BDePaolo%2C+D+J%3BAdkins%2C+J+F%3BDe+Yoreo%2C+J+J%3BAnonymous&rft.aulast=Gagnon&rft.aufirst=A&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=880&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/878.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; amorphous materials; Anthozoa; biochemistry; biomineralization; Ca-44; calcification; calcium; calcium carbonate; Cnidaria; crystal growth; deep-sea environment; ecology; experimental studies; geochemistry; Invertebrata; isotopes; living taxa; marine environment; metals; modern; Scleractinia; stable isotopes; Zoantharia ER - TY - JOUR T1 - Association of amino sugars (chitin) with Fe oxyhydroxides in mycorrhizal mat soils; a STXM/NanoSIMS investigation AN - 1151912101; 2012-096623 AB - Amino sugars and polymers such as chitin represent a major constituent of fungal cell walls and hydrolyzed soil organic matter. Despite their potential importance in soil nitrogen and carbon cycling, comparatively little is known about their dynamics in soils. Here we present the results of an investigation into the mineral interactions and micro-scale behavior of chitin in ectomycorrhizal mats - a system adapted to rapid cycling of amino sugars. The aim of this study was to follow the micro-scale dynamics of (super 13) C- and (super 15) N-labeled chitin during a 3-week incubation in mycorrhizal mat soil collected from a Oregon andic soil under Douglas-fir forest. Based upon previous findings, we hypothesized that the isotopic label would accumulate in bacterial cells associated with fungal hyphae due to their ability to rapidly process amino sugars. In contrast, nano-scale secondary ion mass-spectrometry (NanoSIMS) imaging of hyphae-associated soil organic matter, minerals, and bacteria revealed a preferential association of (super 15) N with Fe-rich particles at the end of the experiment. Synchrotron-based Scanning Transmission X-ray spectromicroscopy (STXM/NEXAFS) at the C, N and Fe K-edge suggests that these hyphae-associated microstructures consist of thin coatings of amine N on Fe (oxyhydr)oxides. Our results are consistent with recent observations of preferential binding of amine N to Fe-rich minerals and suggest a role of Fe (oxyhydr)oxide surfaces in N cycling of organic layers soils. No enrichment of (super 13) C was found at these locations, possibly due to the lower levels of overall (super 13) C abundance. We further discuss advantages and challenges (e.g. data representation, replication, appropriate controls) of the combined application of isotopic and spectroscopic imaging techniques for the investigation of soil C and N cycling. JF - Mineralogical Magazine AU - Pett-Ridge, Jennifer AU - Keiluweit, Marco AU - Bougoure, Jeremy AU - Nico, Peter S AU - Weber, Peter K AU - Zeglin, Lydia AU - Myrold, David D AU - Kleber, Markus AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 1634 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - forest soils KW - chitin KW - ion probe data KW - mass spectra KW - nitrogen KW - Oregon KW - fungi KW - carbon KW - oxides KW - STXM spectra KW - spectra KW - mycorrhizae KW - geochemistry KW - soils KW - experimental studies KW - oxyhydroxides KW - X-ray spectra KW - iron hydroxides KW - geochemical cycle KW - hydroxides KW - ultrastructure KW - nitrogen cycle KW - amino sugar KW - organic compounds KW - EXAFS data KW - NanoSIMS KW - carbon cycle KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151912101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Association+of+amino+sugars+%28chitin%29+with+Fe+oxyhydroxides+in+mycorrhizal+mat+soils%3B+a+STXM%2FNanoSIMS+investigation&rft.au=Pett-Ridge%2C+Jennifer%3BKeiluweit%2C+Marco%3BBougoure%2C+Jeremy%3BNico%2C+Peter+S%3BWeber%2C+Peter+K%3BZeglin%2C+Lydia%3BMyrold%2C+David+D%3BKleber%2C+Markus%3BAnonymous&rft.aulast=Pett-Ridge&rft.aufirst=Jennifer&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=1634&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1584.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - amino sugar; carbon; carbon cycle; chitin; EXAFS data; experimental studies; forest soils; fungi; geochemical cycle; geochemistry; hydroxides; ion probe data; iron hydroxides; mass spectra; mycorrhizae; NanoSIMS; nitrogen; nitrogen cycle; Oregon; organic compounds; oxides; oxyhydroxides; soils; spectra; STXM spectra; ultrastructure; United States; X-ray spectra ER - TY - JOUR T1 - Origin of the differences in redox reactivity of iron (oxyhydr)oxides revealed by time-resolved spectroscopy AN - 1151910386; 2012-100109 AB - The redox chemistry of nanoscale transition metal oxides, hydroxides and oxyhydroxides is of central importance to broad areas of the Earth sciences, including soil and marine biogeochemistry, contaminant remediation, and paleoclimate records. Iron-bearing phases are the most important redox-active minerals in nature and the complex chemistry of these materials exemplifies the challenges in understanding solid phase redox reactions. For example, following the exposure of ferric iron (Fe (super 3+) ) (oxyhydr)oxides to reducing agents, interfacial electron transfer (ET) can lead to several transformation pathways including release of soluble ferrous iron (Fe (super 2+) ) (dissolution), formation of alternative ferric or mixed valence phases (transformation), or particle growth. Understanding and predicting such redox processes will require the application of time-resolved methods capable of observing the intermediate species that control reaction path. We have applied an optical-pump-X-ray-probe method with subnanosecond time resolution to study the fate of ferrous iron sites formed by electron injection at the surface of three phases of ferric iron (oxyhydr)oxides. We used this approach, combined with conventional kinetics studies, to distinguish the timescales for the elementary redox processes occurring during the reductive dissolution of 6-line ferrihydrite, maghemite and hematite nanoparticles. For each phase we quantified the rates of Fe-to-Fe electron hopping, the rates of interfacial electron transfer, the lifetime of kinetic electron trapping within the nanoparticles, and the rates of the full reaction including ferrous iron release into solution. Comparison of these rates which span from the nanosecond to the second scale reveal new insights into the electronic and structural factors controlling the redox reactivity of these phases. JF - Mineralogical Magazine AU - Gilbert, B AU - Katz, J E AU - Zhang, X AU - Attenkofer, K AU - Frandsen, C AU - Zarzycki, Piotr AU - Rosso, Kevin M AU - Falcone, R W AU - Waychunas, G A AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 915 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - experimental studies KW - oxyhydroxides KW - crystal structure KW - iron hydroxides KW - iron KW - hydroxides KW - reactivity KW - X-ray data KW - time factor KW - metals KW - oxides KW - crystal chemistry KW - nanoparticles KW - Eh KW - electrons KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151910386?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Origin+of+the+differences+in+redox+reactivity+of+iron+%28oxyhydr%29oxides+revealed+by+time-resolved+spectroscopy&rft.au=Gilbert%2C+B%3BKatz%2C+J+E%3BZhang%2C+X%3BAttenkofer%2C+K%3BFrandsen%2C+C%3BZarzycki%2C+Piotr%3BRosso%2C+Kevin+M%3BFalcone%2C+R+W%3BWaychunas%2C+G+A%3BAnonymous&rft.aulast=Gilbert&rft.aufirst=B&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=915&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/878.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - crystal chemistry; crystal structure; Eh; electrons; experimental studies; hydroxides; iron; iron hydroxides; metals; nanoparticles; oxides; oxyhydroxides; reactivity; time factor; X-ray data ER - TY - JOUR T1 - Water structure and hydration properties of imogolite nanotubes AN - 1112676034; 2012-087199 AB - Imogolite is a nanotubular aluminosilicate present in the clay fraction of volcanic soils. It has high specific surface areas ( approximately 500 m (super 2) /g) and is one of the few minerals reactive towards both anions and cations under the same soil physico-chemical conditions, properties which make it an important constituent of the soils where it is present. However, precise determinations of imogolite structure and geochemical reactivity have been hindered by its nano-crystalline character. Structural analyses, until now, were restricted to standard X-ray and electron diffraction techniques, the diffraction peaks being used mainly as fingerprints for the identification of the mineral in soils. In this work, we present a detailed structural characterization of the structure of synthetic imogolite using high-energy X-ray diffraction (HEXRD), neutron diffraction with isotopic substitution (NDIS), transmission electron microscopy (TEM), and molecular dynamics (MD) simulation methods. Theoretical and experimental investigations of the structure of water at the imogolite - water interface revealed the presence of highly structured water shells both at the surface and inside the nanotubes. We used these structural inputs to develop a geochemical multi-site complexation (MUSIC) model of the acidity of surface Al (sub 2) -OH groups on the external surface of imogolite and compared this to the acidity of similar sites on the equivalent (but planar) surface of gibbsite. This comparison yielded insights into the influence of surface curvature on mineral reactivity. Our MD simulations also probed the energetics of water adsorption and revealed that the external surface of imogolite is more hydrophobic than that of gibbsite. Ongoing work involving the use of inelastic neutron scattering also will be presented and discussed. JF - Mineralogical Magazine AU - Fernandez-Martinez, A AU - Cuello, G J AU - Bourg, I C AU - Johnson, M R AU - Waychunas, G A AU - Sposito, G AU - Charlet, L AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 841 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - X-ray diffraction data KW - volcanic soils KW - clay mineralogy KW - data processing KW - crystal structure KW - reactivity KW - aluminosilicates KW - digital simulation KW - imogolite KW - molecular dynamics KW - synthetic materials KW - water KW - soils KW - experimental studies KW - mineral-water interface KW - TEM data KW - clay minerals KW - hydration KW - neutron diffraction data KW - theoretical models KW - nanotubes KW - sheet silicates KW - nanoparticles KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112676034?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Water+structure+and+hydration+properties+of+imogolite+nanotubes&rft.au=Fernandez-Martinez%2C+A%3BCuello%2C+G+J%3BBourg%2C+I+C%3BJohnson%2C+M+R%3BWaychunas%2C+G+A%3BSposito%2C+G%3BCharlet%2C+L%3BAnonymous&rft.aulast=Fernandez-Martinez&rft.aufirst=A&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=841&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/825.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - aluminosilicates; clay mineralogy; clay minerals; crystal structure; data processing; digital simulation; experimental studies; hydration; imogolite; mineral-water interface; molecular dynamics; nanoparticles; nanotubes; neutron diffraction data; reactivity; sheet silicates; silicates; soils; synthetic materials; TEM data; theoretical models; volcanic soils; water; X-ray diffraction data ER - TY - JOUR T1 - Modelling of a bentonite column experiment with CrunchFlow including new clay-specific transport features AN - 1112675759; 2012-087196 AB - The porosity concept in bentonite has become an important issue since bentonite is foreseen as a confining and buffer material in high level radioactive waste repositories. The mechanisms associated to transport in the bentonite barrier play a critical role to characterize the chemical and mineralogical evolution of the repository near field. As a consequence of the interest generated in the last years on this topic, the geochemical code CrunchFlow [1] has been recently implemented to take into account an explicit diffuse layer model associated to charged surfaces in clay systems. A multi-component advective-diffusive ion transport experiment performed for 304 days at laboratory scale with a cylindrical column of a compacted MX-80 saturated bentonite was proposed as a benchmark experiment to test the new features in CrunchFlow. An artificial saline solution was infiltrated from one column end and the outflow solution was collected in syringes at the other end. The Cl (super -) evolution in the experiment and the breakthrough of a non-reactive tracer were used to constrain the microporosity (diffuse layer) and macroporosity (free water) volume fractions and the transport parameters (advective flow rate and specific diffusion coefficients of aqueous species). The chemical and mineralogical behaviour observed in the experimental system is rather complex. However, the model shows good agreement with the experimental results and demonstrates the relevance of the partition of the pore water in sub-volumes with different characteristics. JF - Mineralogical Magazine AU - Fernandez, R AU - Maeder, U K AU - Steefel, C I AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 839 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - buffers KW - clay mineralogy KW - analog simulation KW - halogens KW - data processing KW - ions KW - radioactive waste KW - laboratory studies KW - CrunchFlow KW - sedimentary rocks KW - transport KW - chloride ion KW - digital simulation KW - tracers KW - geochemistry KW - disposal barriers KW - chlorine KW - high-level waste KW - experimental studies KW - diffusion KW - numerical models KW - bentonite KW - advection KW - porosity KW - waste disposal KW - clastic rocks KW - pore water KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112675759?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Modelling+of+a+bentonite+column+experiment+with+CrunchFlow+including+new+clay-specific+transport+features&rft.au=Fernandez%2C+R%3BMaeder%2C+U+K%3BSteefel%2C+C+I%3BAnonymous&rft.aulast=Fernandez&rft.aufirst=R&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=839&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/825.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - advection; analog simulation; bentonite; buffers; chloride ion; chlorine; clastic rocks; clay mineralogy; CrunchFlow; data processing; diffusion; digital simulation; disposal barriers; experimental studies; geochemistry; halogens; high-level waste; ions; laboratory studies; numerical models; pore water; porosity; radioactive waste; sedimentary rocks; tracers; transport; waste disposal ER - TY - JOUR T1 - Which emission sector is winning the mitigation competition when direct, indirect and semi-direct effects are investigated separately? AN - 1037240928; 2012-077801 AB - Attention has been drawn to black carbon aerosols, as a target for short-term mitigation of climate warming. Regulating soot emissions could, as a short-term action, potentially buy time by slowing global warming until regulations for long-lived greenhouse gases are set in place. The scientific community debates the impacts of such mitigation measures, and mitigation modelling studies show incoherent answers. One of the main reasons for the disagreement are semi-direct aerosol effects, that are neglected in some studies and included and dominating the overall results in others. In this study we apply the GISS/MATRIX model, a global climate model including detailed aerosol microphysics, to understand the single contributions of aerosol forcings and feedbacks. The study goes beyond black carbon mitigation by investigating the whole suite of aerosol sources and sectors of the CMIP5 emission data sets. Our study finds a regionally divers picture. For example aerosol-cloud effects over the United States lead to reduced cloudiness through semi-direct effects and increased cloudiness by the indirect effect and the reversed phenomena is simulated over Europe. This response will be explained by the chemical composition of the emission mix in the different regions and its impact on black carbon coatings. The most promising emission mitigation sectors differ greatly between geographically regions and even among industrialized countries. JF - Mineralogical Magazine AU - Bauer, Susanne E AU - Menon, Surabi AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 499 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - clouds KW - numerical models KW - pollution KW - atmosphere KW - global change KW - Europe KW - climate change KW - air pollution KW - feedback KW - controls KW - mitigation KW - GISS/MATRIX model KW - black carbon KW - carbon KW - aerosols KW - global warming KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Which+emission+sector+is+winning+the+mitigation+competition+when+direct%2C+indirect+and+semi-direct+effects+are+investigated+separately%3F&rft.au=Bauer%2C+Susanne+E%3BMenon%2C+Surabi%3BAnonymous&rft.aulast=Bauer&rft.aufirst=Susanne&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=499&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/465.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-08-31 N1 - SubjectsTermNotLitGenreText - aerosols; air pollution; atmosphere; black carbon; carbon; climate change; clouds; controls; Europe; feedback; GISS/MATRIX model; global change; global warming; mitigation; numerical models; pollution; United States ER - TY - JOUR T1 - Speciation and dynamics of biologically reduced U(IV) in the Old Rifle, CO, aquifer AN - 1037240158; 2012-077770 AB - The chemical and physical forms of U(IV), as well as the biogeochemical processes by which they form and transform, profoundly influence the behavior of uranium in reduced sediments. Obtaining this information for sediments biostimulated in situ, i.e., in the field, has been one of the most important and difficult scientific challenges in the field of uranium bioremediation. We have used in-well columns to obtain direct access to sediment U(IV) species, evolving microbial communities, and trace and major ion groundwater constituents in the Old Rifle, CO (USA) aquifer. Sediments were examined using x-ray and electron microscopy (XRM and SEM/TEM), x-ray absorption spectroscopy (XAS), and chemical digestions. EXAFS analysis showed that U(IV) occurred predominantly or exclusively as monomeric U(IV) complexes under both metal- and sulfate-reducing conditions, and was associated with biomass or Fe sulfides. Intriguingly, U(IV) was bonded to oxygen atoms, even when associated with iron sulfides. A fraction of these monomeric complexes transformed into uraninite in the aquifer over a subsequent 12 month period. This work establishes the importance of monomeric U(IV) complexes in subsurface sediments at the Old Rifle site and provides a conceptual framework in which previously observed U(IV) reduction products can be related. These experiments also establish that U(IV) species are dynamic in aquifers and can undergo non-oxidative transformation reactions. These new results have important implications for uranium reactive transport models and remediation technologies. JF - Mineralogical Magazine AU - Bargar, J R AU - Stubbs, J E AU - Suvorova, E I AU - Williams, K H AU - Campbell, K M AU - Lezama-Pacheco, J S AU - Cerrato, J M AU - Stylo, M A AU - Alessi, D S AU - Webb, S M AU - Bernier-Latmani, R AU - Giammar, D E AU - Davis, J A AU - Fox, P AU - Long, P E AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 484 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - Garfield County Colorado KW - complexing KW - remediation KW - ground water KW - Rifle Colorado KW - major elements KW - transport KW - sediments KW - reactive transport KW - oxides KW - reduction KW - trace elements KW - water pollution KW - geochemistry KW - tetravalent uranium KW - experimental studies KW - biochemistry KW - pollution KW - bioremediation KW - hydrochemistry KW - TEM data KW - Old Rifle Aquifer KW - aquifers KW - X-ray data KW - metals KW - EXAFS data KW - theoretical models KW - uranium KW - transformations KW - Colorado KW - uraninite KW - actinides KW - SEM data KW - microorganisms KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240158?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Speciation+and+dynamics+of+biologically+reduced+U%28IV%29+in+the+Old+Rifle%2C+CO%2C+aquifer&rft.au=Bargar%2C+J+R%3BStubbs%2C+J+E%3BSuvorova%2C+E+I%3BWilliams%2C+K+H%3BCampbell%2C+K+M%3BLezama-Pacheco%2C+J+S%3BCerrato%2C+J+M%3BStylo%2C+M+A%3BAlessi%2C+D+S%3BWebb%2C+S+M%3BBernier-Latmani%2C+R%3BGiammar%2C+D+E%3BDavis%2C+J+A%3BFox%2C+P%3BLong%2C+P+E%3BAnonymous&rft.aulast=Bargar&rft.aufirst=J&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=484&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/465.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-08-31 N1 - SubjectsTermNotLitGenreText - actinides; aquifers; biochemistry; bioremediation; chemical fractionation; Colorado; complexing; EXAFS data; experimental studies; Garfield County Colorado; geochemistry; ground water; hydrochemistry; major elements; metals; microorganisms; Old Rifle Aquifer; oxides; pollution; reactive transport; reduction; remediation; Rifle Colorado; sediments; SEM data; TEM data; tetravalent uranium; theoretical models; trace elements; transformations; transport; United States; uraninite; uranium; water pollution; X-ray data ER - TY - JOUR T1 - Comparative genomics of two newly isolated Dehalococcoides strains and an enrichment using a genus microarray AN - 1017954394; 14874225 AB - Comparative genomics of Dehalococcoides strains and an enrichment were performed using a microarray targeting genes from all available sequenced genomes of the Dehalococcoides genus. The microarray was designed with 4305 probe sets to target 98.6% of the open-reading frames from strains 195, CBDB1, BAV1 and VS. The microarrays were validated and applied to query the genomes of two recently isolated Dehalococcoides strains, ANAS1 and ANAS2, and their enrichment source (ANAS) to understand the genome-physiology relationships. Strains ANAS1 and ANAS2 can both couple the reduction of trichloroethene, cis-dichloroethene (DCE) and 1,1-DCE, but not tetrachloroethene and trans-DCE with growth, whereas only strain ANAS2 couples vinyl chloride reduction to growth. Comparative genomic analysis showed that the genomes of both strains are similar to each other and to strain 195, except for genes that are within the previously defined integrated elements or high-plasticity regions. Combined results of the two isolates closely matched the results obtained using genomic DNA of the ANAS enrichment. The genome similarities, together with the distinct chlorinated ethene usage of strains ANAS1, ANAS2 and 195 demonstrate that closely phylogenetically related strains can be physiologically different. This incongruence between physiology and core genome phylogeny seems to be related to the presence of distinct reductive dehalogenase-encoding genes with assigned chlorinated ethene functions (pceA, tceA in strain 195; tceA in strain ANAS1; vcrA in strain ANAS2). Overall, the microarrays are a valuable high-throughput tool for comparative genomics of unsequenced Dehalococcoides-containing samples to provide insights into their gene content and dechlorination functions. JF - ISME Journal AU - Lee, Patrick K H AU - Cheng, Dan AU - Hu, Ping AU - West, Kimberlee A AU - Dick, Gregory J AU - Brodie, Eoin L AU - Andersen, Gary L AU - Zinder, Stephen H AU - He, Jianzhong AU - Alvarez-Cohen, Lisa AD - 1] Department of Civil and Environmental Engineering, University of California, Berkeley, CA, USA [2] Ecology Department, Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2011/06// PY - 2011 DA - Jun 2011 SP - 1014 EP - 1024 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 5 IS - 6 SN - 1751-7362, 1751-7362 KW - Biotechnology and Bioengineering Abstracts KW - DNA KW - DNA probes KW - Dechlorination KW - Genomic analysis KW - Phylogeny KW - Tetrachloroethylene KW - Trichloroethylene KW - Vinyl chloride KW - ethene KW - Anas KW - Dehalococcoides KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017954394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=Comparative+genomics+of+two+newly+isolated+Dehalococcoides+strains+and+an+enrichment+using+a+genus+microarray&rft.au=Lee%2C+Patrick+K+H%3BCheng%2C+Dan%3BHu%2C+Ping%3BWest%2C+Kimberlee+A%3BDick%2C+Gregory+J%3BBrodie%2C+Eoin+L%3BAndersen%2C+Gary+L%3BZinder%2C+Stephen+H%3BHe%2C+Jianzhong%3BAlvarez-Cohen%2C+Lisa&rft.aulast=Lee&rft.aufirst=Patrick+K&rft.date=2011-06-01&rft.volume=5&rft.issue=6&rft.spage=1014&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2010.202 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-05-01 N1 - Last updated - 2012-06-18 N1 - SubjectsTermNotLitGenreText - Phylogeny; Dechlorination; ethene; DNA probes; Genomic analysis; DNA; Trichloroethylene; Tetrachloroethylene; Vinyl chloride; Anas; Dehalococcoides DO - http://dx.doi.org/10.1038/ismej.2010.202 ER - TY - JOUR T1 - The oxidation state of Ti in synthetic and meteoritic hibonite AN - 1017953246; 2012-053776 AB - Hibonite (CaAl (sub 12) O (sub 19) ) is a Ti-bearing mineral found in calcium aluminium inclusions (CAIs) and is thought to be the second mineral to condense from a solar composition gas [1]. As such, the crystal chemistry of hibonite could provide insight into the conditions of the early Solar System. Ti may occur as Ti (super 3+) under reducing conditions, with up to 23% of the Ti in meteoritic hibonite previously reported as Ti (super 3+) [2]. We have used X-ray spectromicroscopy (XANES, XPEEM) to determine Ti (super 3+) /Ti (super 4+) ratios for a range of meteoritic hibonites, with spatial resolutions between 3 mu m and 100 nm. We aim to use this information to investigate if hibonite grains record temporal variations in oxygen fugacity in the early Solar Nebula. Ti-bearing hibonite samples were prepared at 1400 degrees C under oxidising and reducing atmospheres using a CO-CO (sub 2) gas mixing furnace in order to produce a sample series with 0-100% Ti (super 3+) /Sigma Ti (where Sigma Ti = Ti (super 3+) +Ti (super 4+) ). Neutron powder diffraction data was used to determine the site occupancy of Ti (super 3+) and Ti (super 4+) in the sample suite. Ti K- and L-edge spectra were recorded for these samples and meteoritic hibonite (c/o A. Bischoff and S. Rout). Spectral features that vary as a function of Ti (super 3+) /Ti (super 4+) in the synthetic hibonite series were identified. The resulting calibration curve was used to determine Ti (super 3+) /Ti (super 4+) ratios for the meteoritic hibonite grains. The results show that blue hibonite from CAIs in the unique Acfer094 meteorite and greeny-blue hibonite from a CAI in the El Djouf001 CR meteorite have up to 10% Ti (super 3+) /Sigma Ti, and colourless hibonite grains from the Hughes030 and NWA2446 R-type meteorites have less than 3% Ti (super 3+) /Sigma Ti. Additionally, there is evidence that there may be a degree of core-to-rim variation of the Ti (super 3+) /Sigma Ti ratio within some hibonite grains. JF - Mineralogical Magazine AU - Doyle, P M AU - Berry, A J AU - Schofield, P F AU - Mosselmans, J F W AU - Smith, A D AU - Scholl, A AU - Young, A T AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 778 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - Northwest Africa Meteorites KW - solar system KW - experimental studies KW - oxidation KW - natural materials KW - calcium-aluminum inclusions KW - calibration KW - Acfer Meteorites KW - hibonite KW - Hughes Meteorite KW - X-ray spectra KW - XANES spectra KW - solar nebula KW - meteorites KW - laboratory studies KW - titanium KW - metals KW - inclusions KW - oxides KW - spectra KW - crystal chemistry KW - geochemistry KW - synthetic materials KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017953246?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=The+oxidation+state+of+Ti+in+synthetic+and+meteoritic+hibonite&rft.au=Doyle%2C+P+M%3BBerry%2C+A+J%3BSchofield%2C+P+F%3BMosselmans%2C+J+F+W%3BSmith%2C+A+D%3BScholl%2C+A%3BYoung%2C+A+T%3BAnonymous&rft.aulast=Doyle&rft.aufirst=P&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=778&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/712.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Acfer Meteorites; calcium-aluminum inclusions; calibration; crystal chemistry; experimental studies; geochemistry; hibonite; Hughes Meteorite; inclusions; laboratory studies; metals; meteorites; natural materials; Northwest Africa Meteorites; oxidation; oxides; solar nebula; solar system; spectra; synthetic materials; titanium; X-ray spectra; XANES spectra ER - TY - JOUR T1 - A meso-scale laboratory study of stable isotope variations during uranium bioremediation AN - 1017950651; 2012-053783 AB - We present results from a large-scale column experiment designed to bridge the gap between the field scale and small columns and advance our understanding of the isotopic signatures of biostimulation geochemistry. Stable isotope variations of major elements such as C, Ca and S can identify processes unobservable in concentration data alone but an understanding of these isotope systems must first be developed under controlled biostimulation conditions. A 1m long, 10cm diameter column was packed with sediment from the saturated zone of the Rifle Integrated Field-Scale Subsurface Research Challenge (IFRC) site in western Colorado. The pore velocity of the column experiment was matched to that of the field, thus providing a direct representation of the first meter down-gradient of the in situ uranium bioremediation injection gallery while ensuring steady flow and boundary conditions. Side-ports along the length of the column provided <20cm sampling resolution, while inert tracers and electron donor were added to the injection solution. This study has generated an extensive isotopic and biogeochemical reactive transport dataset and provides an unprecedented opportunity to constrain carbon, calcium and sulfur isotopic dynamics. Results include: 1) delta (super 2) H and delta (super 18) O breakthrough curves yielding a starting porosity of 0.38 decreasing to 0.30 over 42 days. 2) delta (super 13) C-labeled acetate allows tracking of carbon originating from electron donor consumption throughout the system. 3) delta (super 44) Ca variations in the fluid phase identify two primary controls on Ca: precipitation of carbonates and ion exchange between the fluid and sediment. 4) A delta (super 34) S fractionation factor of 12ppm between SO (sub 4) (super 2-) and HS (super -) in comparison with a Rayleigh model alpha of 10ppm indicates variation in a values across the flow path. These observations are a direct result of the improved spatial and temporal sampling resolution afforded by the experimental design and allow new insight into the highly reactive zone adjacent to contaminant remediation injection wells. JF - Mineralogical Magazine AU - Druhan, J L AU - Steefel, C I AU - Conrad, M E AU - DePaolo, D J AU - Anonymous Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 782 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - scale factor KW - calcium KW - oxygen KW - isotopes KW - Ca-44 KW - stable isotopes KW - remediation KW - laboratory studies KW - transport KW - sampling KW - carbon KW - reactive transport KW - deuterium KW - breakthrough curves KW - alkaline earth metals KW - experimental studies KW - pollutants KW - isotope ratios KW - C-13/C-12 KW - pollution KW - O-18/O-16 KW - bioremediation KW - sample preparation KW - S-34/S-32 KW - D/H KW - metals KW - hydrogen KW - sulfur KW - uranium KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017950651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=A+meso-scale+laboratory+study+of+stable+isotope+variations+during+uranium+bioremediation&rft.au=Druhan%2C+J+L%3BSteefel%2C+C+I%3BConrad%2C+M+E%3BDePaolo%2C+D+J%3BAnonymous&rft.aulast=Druhan&rft.aufirst=J&rft.date=2011-06-01&rft.volume=75&rft.issue=3&rft.spage=782&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/712.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; bioremediation; breakthrough curves; C-13/C-12; Ca-44; calcium; carbon; D/H; deuterium; experimental studies; hydrogen; isotope ratios; isotopes; laboratory studies; metals; O-18/O-16; oxygen; pollutants; pollution; reactive transport; remediation; S-34/S-32; sample preparation; sampling; scale factor; stable isotopes; sulfur; transport; uranium ER - TY - JOUR T1 - Implementation of the Barcelona basic model into TOUGH-FLAC for simulations of the geomechanical behavior of unsaturated soils AN - 1008820855; 2012-040846 AB - This paper presents the implementation of the Barcelona Basic Model (BBM) into the TOUGH-FLAC simulator analyzing the geomechanical behavior of unsaturated soils. We implemented the BBM into TOUGH-FLAC by (1) extending an existing FLAC (super 3D) module for the Modified Cam-Clay (MCC) model in FLAC (super 3D) and (2) adding computational routines for suction-dependent strain and net stress (i.e., total stress minus gas pressure) for unsaturated soils. We implemented a thermo-elasto-plastic version of the BBM, wherein the soil strength depends on both suction and temperature. The implementation of the BBM into TOUGH-FLAC was verified and tested against several published numerical model simulations and laboratory experiments involving the coupled thermal-hydrological-mechanical (THM) behavior of unsaturated soils. The simulation tests included modeling the mechanical behavior of bentonite-sand mixtures, which are being considered as back-fill and buffer materials for geological disposal of spent nuclear fuel. We also tested and demonstrated the use of the BBM and TOUGH-FLAC for a problem involving the coupled THM processes within a bentonite-backfilled nuclear waste emplacement tunnel. The simulation results indicated complex geomechanical behavior of the bentonite backfill, including a nonuniform distribution of buffer porosity and density that could not be captured in an alternative, simplified, linear-elastic swelling model. As a result of the work presented in this paper, TOUGH-FLAC with BBM is now fully operational and ready to be applied to problems associated with nuclear waste disposal in bentonite-backfilled tunnels, as well as other scientific and engineering problems related to the mechanical behavior of unsaturated soils. JF - Computers & Geosciences AU - Rutqvist, Jonny AU - Ijiri, Yuji AU - Yamamoto, Hajime A2 - Moridis, G. A2 - Doughty, C. Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 751 EP - 762 PB - Elsevier, Amsterdam VL - 37 IS - 6 SN - 0098-3004, 0098-3004 KW - TOUGH2 KW - data processing KW - unsaturated zone KW - simulation KW - radioactive waste KW - ground water KW - TOUGH-FLAC KW - sedimentary rocks KW - tunnels KW - sediments KW - P-T conditions KW - soil mechanics KW - sand KW - experimental studies KW - bentonite KW - three-dimensional models KW - clastic sediments KW - mechanical properties KW - structures KW - models KW - computer programs KW - Barcelona model KW - mathematical methods KW - waste disposal KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820855?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=Implementation+of+the+Barcelona+basic+model+into+TOUGH-FLAC+for+simulations+of+the+geomechanical+behavior+of+unsaturated+soils&rft.au=Rutqvist%2C+Jonny%3BIjiri%2C+Yuji%3BYamamoto%2C+Hajime&rft.aulast=Rutqvist&rft.aufirst=Jonny&rft.date=2011-06-01&rft.volume=37&rft.issue=6&rft.spage=751&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2010.10.011 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 29 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - Barcelona model; bentonite; clastic rocks; clastic sediments; computer programs; data processing; experimental studies; ground water; mathematical methods; mechanical properties; models; P-T conditions; radioactive waste; sand; sedimentary rocks; sediments; simulation; soil mechanics; structures; three-dimensional models; TOUGH-FLAC; TOUGH2; tunnels; unsaturated zone; waste disposal DO - http://dx.doi.org/10.1016/j.cageo.2010.10.011 ER - TY - JOUR T1 - Status of the TOUGH-FLAC simulator and recent applications related to coupled fluid flow and crustal deformations AN - 1008820852; 2012-040845 AB - This paper presents recent advancement in and applications of TOUGH-FLAC, a simulator for multiphase fluid flow and geomechanics. The TOUGH-FLAC simulator links the TOUGH family multiphase fluid and heat transport codes with the commercial FLAC (super 3D) geomechanical simulator. The most significant new TOUGH-FLAC development in the past few years is a revised architecture, enabling a more rigorous and tight coupling procedure with improved computational efficiency. The applications presented in this paper are related to modeling of crustal deformations caused by deep underground fluid movements and pressure changes as a result of both industrial activities (the In Salah CO (sub 2) Storage Project and the Geysers Geothermal Field) and natural events (the 1960s Matsushiro Earthquake Swarm). Finally, the paper provides some perspectives on the future of TOUGH-FLAC in light of its applicability to practical problems and the need for high-performance computing capabilities for field-scale problems, such as industrial-scale CO (sub 2) storage and enhanced geothermal systems. It is concluded that despite some limitations to fully adapting a commercial code such as FLAC (super 3D) for some specialized research and computational needs, TOUGH-FLAC is likely to remain a pragmatic simulation approach, with an increasing number of users in both academia and industry. JF - Computers & Geosciences AU - Rutqvist, Jonny A2 - Moridis, G. A2 - Doughty, C. Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 739 EP - 750 PB - Elsevier, Amsterdam VL - 37 IS - 6 SN - 0098-3004, 0098-3004 KW - United States KW - TOUGH2 KW - Far East KW - North Africa KW - natural gas KW - data processing KW - petroleum KW - gas storage KW - simulation KW - oil and gas fields KW - reservoir rocks KW - carbon dioxide KW - air pollution KW - environmental management KW - California KW - TOUGH-FLAC KW - sedimentary rocks KW - movement KW - geysers KW - Asia KW - Northern California KW - carbon sequestration KW - swarms KW - three-dimensional models KW - pollutants KW - In Salah Field KW - pollution KW - mechanical properties KW - deformation KW - geometry KW - models KW - geothermal energy KW - computer programs KW - geothermal fields KW - gas injection KW - geothermal reservoirs KW - The Geysers KW - Krechba Field KW - boreholes KW - Matsushiro Japan KW - Africa KW - hydraulic conductivity KW - Honshu KW - earthquakes KW - clastic rocks KW - Algeria KW - Japan KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820852?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=Status+of+the+TOUGH-FLAC+simulator+and+recent+applications+related+to+coupled+fluid+flow+and+crustal+deformations&rft.au=Rutqvist%2C+Jonny&rft.aulast=Rutqvist&rft.aufirst=Jonny&rft.date=2011-06-01&rft.volume=37&rft.issue=6&rft.spage=739&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2010.08.006 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 83 N1 - Document feature - illus. incl. sketch maps N1 - Last updated - 2012-06-07 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - Africa; air pollution; Algeria; Asia; boreholes; California; carbon dioxide; carbon sequestration; clastic rocks; computer programs; data processing; deformation; earthquakes; environmental management; Far East; gas injection; gas storage; geometry; geothermal energy; geothermal fields; geothermal reservoirs; geysers; Honshu; hydraulic conductivity; In Salah Field; Japan; Krechba Field; Matsushiro Japan; mechanical properties; models; movement; natural gas; North Africa; Northern California; oil and gas fields; petroleum; pollutants; pollution; reservoir rocks; sedimentary rocks; simulation; swarms; The Geysers; three-dimensional models; TOUGH-FLAC; TOUGH2; United States DO - http://dx.doi.org/10.1016/j.cageo.2010.08.006 ER - TY - JOUR T1 - A truncated Levenberg-Marquardt algorithm for the calibration of highly parameterized non-linear models AN - 1008820849; 2012-040844 AB - We propose a modification to the Levenberg-Marquardt minimization algorithm for a more robust and more efficient calibration of highly parameterized, strongly nonlinear models of multiphase flow through porous media. The new method combines the advantages of truncated singular value decomposition with those of the classical Levenberg-Marquardt algorithm, thus enabling a more robust solution of underdetermined inverse problems with complex relations between the parameters to be estimated and the observable state variables used for calibration. The truncation limit separating the solution space from the calibration null space is re-evaluated during the iterative calibration process. In between these re-evaluations, fewer forward simulations are required, compared to the standard approach, to calculate the approximate sensitivity matrix. Truncated singular values are used to calculate the Levenberg-Marquardt parameter updates, ensuring that safe small steps along the steepest-descent direction are taken for highly correlated parameters of low sensitivity, whereas efficient quasi-Gauss-Newton steps are taken for independent parameters with high impact. The performance of the proposed scheme is demonstrated for a synthetic data set representing infiltration into a partially saturated, heterogeneous soil, where hydrogeological, petrophysical, and geostatistical parameters are estimated based on the joint inversion of hydrological and geophysical data. JF - Computers & Geosciences AU - Finsterle, Stefan AU - Kowalsky, Michael B Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 731 EP - 738 PB - Elsevier, Amsterdam VL - 37 IS - 6 SN - 0098-3004, 0098-3004 KW - TOUGH2 KW - petrology KW - Levenberg-Marquardt method KW - well-logging KW - geophysical methods KW - data processing KW - porous materials KW - inverse problem KW - hydrogeology KW - calibration KW - porosity KW - reservoir rocks KW - ground water KW - aquifers KW - models KW - computer programs KW - saturation KW - neutron probe data KW - mathematical methods KW - reservoir properties KW - algorithms KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=A+truncated+Levenberg-Marquardt+algorithm+for+the+calibration+of+highly+parameterized+non-linear+models&rft.au=Finsterle%2C+Stefan%3BKowalsky%2C+Michael+B&rft.aulast=Finsterle&rft.aufirst=Stefan&rft.date=2011-06-01&rft.volume=37&rft.issue=6&rft.spage=731&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2010.11.005 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 28 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-07-19 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - algorithms; aquifers; calibration; computer programs; data processing; geophysical methods; ground water; hydrogeology; inverse problem; Levenberg-Marquardt method; mathematical methods; models; neutron probe data; petrology; porosity; porous materials; reservoir properties; reservoir rocks; saturation; TOUGH2; well-logging DO - http://dx.doi.org/10.1016/j.cageo.2010.11.005 ER - TY - JOUR T1 - Error handling strategies in multiphase inverse modeling AN - 1008820845; 2012-040843 AB - Parameter estimation by inverse modeling involves the repeated evaluation of a function of residuals. These residuals represent both errors in the model and errors in the data. In practical applications of inverse modeling of multiphase flow and transport, the error structure of the final residuals often significantly deviates from the statistical assumptions that underlie standard maximum likelihood estimation using the least-squares method. Large random or systematic errors are likely to lead to convergence problems, biased parameter estimates, misleading uncertainty measures, or poor predictive capabilities of the calibrated model. The multiphase inverse modeling code iTOUGH2 supports strategies that identify and mitigate the impact of systematic or non-normal error structures. We discuss these approaches and provide an overview of the error handling features implemented in iTOUGH2. JF - Computers & Geosciences AU - Finsterle, Stefan AU - Zhang, Yingqi A2 - Moridis, G. A2 - Doughty, C. Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 724 EP - 730 PB - Elsevier, Amsterdam VL - 37 IS - 6 SN - 0098-3004, 0098-3004 KW - TOUGH2 KW - confined aquifers KW - statistical analysis KW - data processing KW - prediction KW - inverse problem KW - calibration KW - least-squares analysis KW - ground water KW - aquifers KW - models KW - computer programs KW - mitigation KW - errors KW - mathematical methods KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=Error+handling+strategies+in+multiphase+inverse+modeling&rft.au=Finsterle%2C+Stefan%3BZhang%2C+Yingqi&rft.aulast=Finsterle&rft.aufirst=Stefan&rft.date=2011-06-01&rft.volume=37&rft.issue=6&rft.spage=724&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2010.11.009 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - aquifers; calibration; computer programs; confined aquifers; data processing; errors; ground water; inverse problem; least-squares analysis; mathematical methods; mitigation; models; prediction; statistical analysis; TOUGH2 DO - http://dx.doi.org/10.1016/j.cageo.2010.11.009 ER - TY - JOUR T1 - TOUGH+CO (sub 2) ; a multiphase fluid flow simulator for CO (sub 2) geologic sequestration in saline aquifers AN - 1008820843; 2012-040842 AB - TOUGH+CO (sub 2) is a new simulator for modeling of CO (sub 2) geologic sequestration in saline aquifers. It is a member of TOUGH+, the successor to the TOUGH2 family of codes for multicomponent, multiphase fluid and heat flow simulation. The code accounts for heat and up to 3 mass components, which are partitioned into three possible phases. In the code, the thermodynamics and thermophysical properties of H (sub 2) O-NaCl-CO (sub 2) mixtures are determined based on system status and subdivided into six different phase combinations. By solving coupled mass and heat balance equations, TOUGH+CO (sub 2) can model non-isothermal or isothermal CO (sub 2) injection, phase behavior and flow of fluids and heat under typical conditions of temperature, pressure and salinity in CO (sub 2) geologic storage projects. The code takes into account effects of salt precipitation on porosity and permeability changes, and the wettability phenomena. The new simulator inherits all capabilities of TOUGH2 in handling fractured media and using unstructured meshes for complex simulation domains. The code adds additional relative permeability and capillary pressure functions. The FORTRAN 95 OOP architecture and other new language features have been extensively used to enhance memory use and computing efficiency. In addition, a domain decomposition approach has been implemented for parallel simulation. All these features lead to increased computational efficiency, and allow applicability of the code to multi-core/processor parallel computing platforms with excellent scalability. JF - Computers & Geosciences AU - Zhang, Keni AU - Moridis, George AU - Pruess, Karsten A2 - Moridis, G. A2 - Doughty, C. Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 714 EP - 723 PB - Elsevier, Amsterdam VL - 37 IS - 6 SN - 0098-3004, 0098-3004 KW - TOUGH2 KW - data processing KW - gas storage KW - simulation KW - layered materials KW - reservoir rocks KW - ground water KW - carbon dioxide KW - sedimentary rocks KW - mass balance KW - movement KW - thermodynamic properties KW - chemical composition KW - geochemistry KW - saline composition KW - hydrology KW - chemically precipitated rocks KW - carbon sequestration KW - three-dimensional models KW - capillarity KW - equations KW - hydrochemistry KW - evaporites KW - porosity KW - aquifers KW - models KW - computer programs KW - gas injection KW - physical properties KW - isotherms KW - precipitation KW - mathematical methods KW - reservoir properties KW - hydraulic conductivity KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008820843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=TOUGH%2BCO+%28sub+2%29+%3B+a+multiphase+fluid+flow+simulator+for+CO+%28sub+2%29+geologic+sequestration+in+saline+aquifers&rft.au=Zhang%2C+Keni%3BMoridis%2C+George%3BPruess%2C+Karsten&rft.aulast=Zhang&rft.aufirst=Keni&rft.date=2011-06-01&rft.volume=37&rft.issue=6&rft.spage=714&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2010.09.011 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 37 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - aquifers; capillarity; carbon dioxide; carbon sequestration; chemical composition; chemically precipitated rocks; computer programs; data processing; equations; evaporites; gas injection; gas storage; geochemistry; ground water; hydraulic conductivity; hydrochemistry; hydrology; isotherms; layered materials; mass balance; mathematical methods; models; movement; permeability; physical properties; porosity; precipitation; reservoir properties; reservoir rocks; saline composition; sedimentary rocks; simulation; thermodynamic properties; three-dimensional models; TOUGH2 DO - http://dx.doi.org/10.1016/j.cageo.2010.09.011 ER - TY - JOUR T1 - TOUGHREACT version 2.0; a simulator for subsurface reactive transport under non-isothermal multiphase flow conditions AN - 1008819663; 2012-040847 AB - TOUGHREACT is a numerical simulation program for chemically reactive non-isothermal flows of multiphase fluids in porous and fractured media, and was developed by introducing reactive chemistry into the multiphase fluid and heat flow simulator TOUGH2 V2. The first version of TOUGHREACT was released to the public through the U.S. Department of Energy's Energy Science and Technology Software Center (ESTSC) in August 2004. It is among the most frequently requested of ESTSC's codes. The code has been widely used for studies in CO (sub 2) geological sequestration, nuclear waste isolation, geothermal energy development, environmental remediation, and increasingly for petroleum applications. Over the past several years, many new capabilities have been developed, which were incorporated into Version 2 of TOUGHREACT. Major additions and improvements in Version 2 are discussed here, and two application examples are presented: (1) long-term fate of injected CO (sub 2) in a storage reservoir and (2) biogeochemical cycling of metals in mining-impacted lake sediments. JF - Computers & Geosciences AU - Xu, Tianfu AU - Spycher, Nicolas AU - Sonnenthal, Eric AU - Zhang, Guoxiang AU - Zheng, Liange AU - Pruess, Karsten A2 - Moridis, G. A2 - Doughty, C. Y1 - 2011/06// PY - 2011 DA - June 2011 SP - 763 EP - 774 PB - Elsevier, Amsterdam VL - 37 IS - 6 SN - 0098-3004, 0098-3004 KW - United States KW - TOUGH2 KW - data processing KW - gas storage KW - fluid phase KW - simulation KW - reservoir rocks KW - radioactive waste KW - carbon dioxide KW - reactivity KW - geothermal systems KW - transport KW - heat flow KW - movement KW - TOUGHREACT KW - kinetics KW - geochemistry KW - Idaho KW - carbon sequestration KW - numerical models KW - acid mine drainage KW - pollutants KW - biochemistry KW - pollution KW - Lake Coeur d'Alene KW - hydrochemistry KW - Kootenai County Idaho KW - computer programs KW - geothermal reservoirs KW - Coeur d'Alene mining district KW - isotherms KW - metals KW - naturally fractured reservoirs KW - mathematical methods KW - mobilization KW - waste disposal KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819663?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computers+%26+Geosciences&rft.atitle=TOUGHREACT+version+2.0%3B+a+simulator+for+subsurface+reactive+transport+under+non-isothermal+multiphase+flow+conditions&rft.au=Xu%2C+Tianfu%3BSpycher%2C+Nicolas%3BSonnenthal%2C+Eric%3BZhang%2C+Guoxiang%3BZheng%2C+Liange%3BPruess%2C+Karsten&rft.aulast=Xu&rft.aufirst=Tianfu&rft.date=2011-06-01&rft.volume=37&rft.issue=6&rft.spage=763&rft.isbn=&rft.btitle=&rft.title=Computers+%26+Geosciences&rft.issn=00983004&rft_id=info:doi/10.1016%2Fj.cageo.2010.10.007 L2 - http://www.sciencedirect.com/science?_ob=JournalURL&_cdi=5840&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e5198452fad934c6346f38b57511c8e0 LA - English DB - GeoRef N1 - Conference title - 2009 TOUGH symposium N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 39 N1 - Document feature - illus. incl. 7 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GGEOD5 N1 - SubjectsTermNotLitGenreText - acid mine drainage; biochemistry; carbon dioxide; carbon sequestration; Coeur d'Alene mining district; computer programs; data processing; fluid phase; gas storage; geochemistry; geothermal reservoirs; geothermal systems; heat flow; hydrochemistry; Idaho; isotherms; kinetics; Kootenai County Idaho; Lake Coeur d'Alene; mathematical methods; metals; mobilization; movement; naturally fractured reservoirs; numerical models; pollutants; pollution; radioactive waste; reactivity; reservoir rocks; simulation; TOUGH2; TOUGHREACT; transport; United States; waste disposal DO - http://dx.doi.org/10.1016/j.cageo.2010.10.007 ER - TY - CPAPER T1 - Analysis Of Microbial Community Structure And Alkane Composition In Mc252 Oil Spill Using Phospholipid Fatty Acid Analysis T2 - 111th General Meeting of the American Society for Microbiology (ASM 2011) AN - 1312944385; 6038744 JF - 111th General Meeting of the American Society for Microbiology (ASM 2011) AU - Borglin, S AU - Piceno, Y AU - Joyner, D AU - Fortney, J AU - Hazen, T Y1 - 2011/05/21/ PY - 2011 DA - 2011 May 21 KW - Fatty acids KW - Oil spills KW - Microbial activity KW - Phospholipids KW - Alkanes KW - Community structure KW - Community composition UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312944385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=111th+General+Meeting+of+the+American+Society+for+Microbiology+%28ASM+2011%29&rft.atitle=Analysis+Of+Microbial+Community+Structure+And+Alkane+Composition+In+Mc252+Oil+Spill+Using+Phospholipid+Fatty+Acid+Analysis&rft.au=Borglin%2C+S%3BPiceno%2C+Y%3BJoyner%2C+D%3BFortney%2C+J%3BHazen%2C+T&rft.aulast=Borglin&rft.aufirst=S&rft.date=2011-05-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=111th+General+Meeting+of+the+American+Society+for+Microbiology+%28ASM+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.abstractsonline.com/plan/Browse.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Topological Data Analysis of PhyloChip Assay Hybridization Scores Reveals Community Shift in Deep-Sea Oil Plume T2 - 111th General Meeting of the American Society for Microbiology (ASM 2011) AN - 1312935146; 6038758 JF - 111th General Meeting of the American Society for Microbiology (ASM 2011) AU - Desantis, T AU - Lum, P AU - Piceno, Y AU - Dubinski, E AU - Tom, L AU - Singh, G AU - Carlsson, G AU - Andersen, G Y1 - 2011/05/21/ PY - 2011 DA - 2011 May 21 KW - Plumes KW - Oil KW - Data processing KW - Hybridization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312935146?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=111th+General+Meeting+of+the+American+Society+for+Microbiology+%28ASM+2011%29&rft.atitle=Topological+Data+Analysis+of+PhyloChip+Assay+Hybridization+Scores+Reveals+Community+Shift+in+Deep-Sea+Oil+Plume&rft.au=Desantis%2C+T%3BLum%2C+P%3BPiceno%2C+Y%3BDubinski%2C+E%3BTom%2C+L%3BSingh%2C+G%3BCarlsson%2C+G%3BAndersen%2C+G&rft.aulast=Desantis&rft.aufirst=T&rft.date=2011-05-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=111th+General+Meeting+of+the+American+Society+for+Microbiology+%28ASM+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.abstractsonline.com/plan/Browse.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Comparing Photosynthetic and Photovoltaic Efficiencies and Recognizing the Potential for Improvement AN - 1777115206; 14873174 AB - Comparing photosynthetic and photovoltaic efficiencies is not a simple issue. Although both processes harvest the energy in sunlight, they operate in distinctly different ways and produce different types of products: biomass or chemical fuels in the case of natural photosynthesis and nonstored electrical current in the case of photovoltaics. In order to find common ground for evaluating energy-conversion efficiency, we compare natural photosynthesis with present technologies for photovoltaic-driven electrolysis of water to produce hydrogen. Photovoltaic-driven electrolysis is the more efficient process when measured on an annual basis, yet short-term yields for photosynthetic conversion under optimal conditions come within a factor of 2 or 3 of the photovoltaic benchmark. We consider opportunities in which the frontiers of synthetic biology might be used to enhance natural photosynthesis for improved solar energy conversion efficiency. JF - Science (Washington) AU - Blankenship, Robert E AU - Tiede, David M AU - Barber, James AU - Brudvig, Gary W AU - Fleming, Graham AU - Ghirardi, Maria AU - Gunner, M R AU - Junge, Wolfgang AU - Kramer, David M AU - Melis, Anastasios AU - Moore, Thomas A AU - Moser, Christopher C AU - Nocera, Daniel G AU - Nozik, Arthur J AU - Ort, Donald R AU - Parson, William W AU - Prince, Roger C AU - Sayre, Richard T AD - Departments of Biology and Chemistry, Washington University in St. Louis, St. Louis, MO 63130, USA. Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA. Division of Molecular Biosciences, Imperial College London, London SW7 2AZ, UK. Department of Chemistry, Yale University, New Haven, CT 06520-8107, USA. Department of Chemistry, University of California, Berkeley, and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Biosciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA. Department of Physics, City College of New York, New York, NY 10031, USA. Division of Biophysics, University of Osnabrueck, D-49069 Osnabrueck, Germany. Biochemistry and Molecular Biology and DOE-Plant Research Laboratory, Michigan State University, East Lansing, MI 48824, USA. Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA 94720-3102, USA. Department of Chemistry and Bioche Y1 - 2011/05/13/ PY - 2011 DA - 2011 May 13 SP - 805 EP - 809 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA VL - 332 IS - 6031 SN - 0036-8075, 0036-8075 KW - Solid State and Superconductivity Abstracts (SO); Environmental Engineering Abstracts (EN) KW - Photosynthesis KW - Chemical fuels KW - Solar cells KW - Electrolysis KW - Conversion KW - Photovoltaic cells KW - Optimization KW - Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777115206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Comparing+Photosynthetic+and+Photovoltaic+Efficiencies+and+Recognizing+the+Potential+for+Improvement&rft.au=Blankenship%2C+Robert+E%3BTiede%2C+David+M%3BBarber%2C+James%3BBrudvig%2C+Gary+W%3BFleming%2C+Graham%3BGhirardi%2C+Maria%3BGunner%2C+M+R%3BJunge%2C+Wolfgang%3BKramer%2C+David+M%3BMelis%2C+Anastasios%3BMoore%2C+Thomas+A%3BMoser%2C+Christopher+C%3BNocera%2C+Daniel+G%3BNozik%2C+Arthur+J%3BOrt%2C+Donald+R%3BParson%2C+William+W%3BPrince%2C+Roger+C%3BSayre%2C+Richard+T&rft.aulast=Blankenship&rft.aufirst=Robert&rft.date=2011-05-13&rft.volume=332&rft.issue=6031&rft.spage=805&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-12-01 N1 - Last updated - 2016-05-18 ER - TY - JOUR T1 - Engineering microbial biofuel tolerance and export using efflux pumps. AN - 866046832; 21556065 AB - Many compounds being considered as candidates for advanced biofuels are toxic to microorganisms. This introduces an undesirable trade-off when engineering metabolic pathways for biofuel production because the engineered microbes must balance production against survival. Cellular export systems, such as efflux pumps, provide a direct mechanism for reducing biofuel toxicity. To identify novel biofuel pumps, we used bioinformatics to generate a list of all efflux pumps from sequenced bacterial genomes and prioritized a subset of targets for cloning. The resulting library of 43 pumps was heterologously expressed in Escherichia coli, where we tested it against seven representative biofuels. By using a competitive growth assay, we efficiently distinguished pumps that improved survival. For two of the fuels (n-butanol and isopentanol), none of the pumps improved tolerance. For all other fuels, we identified pumps that restored growth in the presence of biofuel. We then tested a beneficial pump directly in a production strain and demonstrated that it improved biofuel yields. Our findings introduce new tools for engineering production strains and utilize the increasingly large database of sequenced genomes. JF - Molecular systems biology AU - Dunlop, Mary J AU - Dossani, Zain Y AU - Szmidt, Heather L AU - Chu, Hou Cheng AU - Lee, Taek Soon AU - Keasling, Jay D AU - Hadi, Masood Z AU - Mukhopadhyay, Aindrila AD - Joint BioEnergy Institute, Emeryville, CA, USA. Y1 - 2011/05/10/ PY - 2011 DA - 2011 May 10 SP - 487 VL - 7 KW - Biofuels KW - 0 KW - Membrane Transport Proteins KW - Pentanols KW - 1-Butanol KW - 8PJ61P6TS3 KW - isopentyl alcohol KW - DEM9NIT1J4 KW - Index Medicus KW - Metabolic Networks and Pathways KW - Microarray Analysis KW - Computational Biology KW - Escherichia coli -- metabolism KW - 1-Butanol -- toxicity KW - Escherichia coli -- genetics KW - Genetic Engineering -- methods KW - Biofuels -- toxicity KW - Pentanols -- toxicity KW - Pentanols -- metabolism KW - 1-Butanol -- metabolism KW - Escherichia coli -- growth & development KW - Membrane Transport Proteins -- metabolism KW - Membrane Transport Proteins -- genetics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/866046832?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Molecular+systems+biology&rft.atitle=Engineering+microbial+biofuel+tolerance+and+export+using+efflux+pumps.&rft.au=Dunlop%2C+Mary+J%3BDossani%2C+Zain+Y%3BSzmidt%2C+Heather+L%3BChu%2C+Hou+Cheng%3BLee%2C+Taek+Soon%3BKeasling%2C+Jay+D%3BHadi%2C+Masood+Z%3BMukhopadhyay%2C+Aindrila&rft.aulast=Dunlop&rft.aufirst=Mary&rft.date=2011-05-10&rft.volume=7&rft.issue=&rft.spage=487&rft.isbn=&rft.btitle=&rft.title=Molecular+systems+biology&rft.issn=1744-4292&rft_id=info:doi/10.1038%2Fmsb.2011.21 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2011-09-07 N1 - Date created - 2011-05-10 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: J Bacteriol. 2000 Jun;182(11):3142-50 [10809693] Mol Syst Biol. 2010 Dec 21;6:449 [21179021] Microbiol Mol Biol Rev. 2000 Dec;64(4):672-93 [11104814] Appl Microbiol Biotechnol. 2000 Nov;54(5):711-4 [11131400] J Bacteriol. 2001 Jul;183(13):3967-73 [11395460] Adv Biochem Eng Biotechnol. 2002;74:239-59 [11991182] Annu Rev Microbiol. 2002;56:743-68 [12142492] J Bacteriol. 2002 Dec;184(23):6490-8 [12426336] J Biol Chem. 2003 Jan 24;278(4):2085-8 [12460990] Extremophiles. 2003 Oct;7(5):371-6 [12743835] J Biol Chem. 1998 Jan 2;273(1):85-91 [9417051] Extremophiles. 1998 Aug;2(3):229-38 [9783170] J Bacteriol. 1998 Dec;180(24):6769-72 [9852029] Science. 2006 Dec 8;314(5805):1565-8 [17158319] Nat Methods. 2007 Jan;4(1):87-93 [17099705] Adv Biochem Eng Biotechnol. 2007;108:237-61 [17665158] Nature. 2008 Jan 3;451(7174):86-9 [18172501] Metab Eng. 2008 Nov;10(6):295-304 [18655844] Nat Biotechnol. 2009 Apr;27(4):369-77 [19349972] Biochim Biophys Acta. 2009 May;1794(5):769-81 [19026770] Biotechnol J. 2010 Feb;5(2):147-62 [20084640] Antimicrob Agents Chemother. 2010 May;54(5):1800-6 [20160052] J Mol Microbiol Biotechnol. 1999 Aug;1(1):107-25 [10941792] N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1038/msb.2011.21 ER - TY - JOUR T1 - A conductivity relationship for steady-state unsaturated flow processes under optimal flow conditions AN - 916838793; 2012-012467 AB - Optimality principles have been used to investigate physical processes in different areas. This work applied an optimal principle (that water flow resistance is minimized for the entire flow domain) to steady-state unsaturated flow processes. Based on the calculus of variations, under optimal conditions, hydraulic conductivity for steady-state, gravity-dominated unsaturated flow is proportional to a power function of the magnitude of water flux. This relationship is consistent with an intuitive expectation that for an optimal water flow system, locations where relatively large water fluxes occur should correspond to relatively small resistance (or large conductance). This theoretical result was also consistent with observed fingering-flow behavior in unsaturated soils and an existing model. JF - Vadose Zone Journal AU - Liu, Hui-Hai Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 736 EP - 740 PB - Soil Science Society of America, Madison, WI VL - 10 IS - 2 KW - processes KW - models KW - movement KW - mathematical methods KW - steady-state processes KW - unsaturated zone KW - optimization KW - hydraulic conductivity KW - ground water KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916838793?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+conductivity+relationship+for+steady-state+unsaturated+flow+processes+under+optimal+flow+conditions&rft.au=Liu%2C+Hui-Hai&rft.aulast=Liu&rft.aufirst=Hui-Hai&rft.date=2011-05-01&rft.volume=10&rft.issue=2&rft.spage=736&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2010.0118 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 21 N1 - PubXState - WI N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - ground water; hydraulic conductivity; mathematical methods; models; movement; optimization; processes; steady-state processes; unsaturated zone DO - http://dx.doi.org/10.2136/vzj2010.0118 ER - TY - JOUR T1 - Ecosystem Feedbacks to Climate Change in California: Development, Testing, and Analysis Using a Coupled Regional Atmosphere and Land Surface Model (WRF3-CLM3.5) AN - 902372694; 15791897 JF - Earth Interactions AU - Subin, Z M AU - Riley, W J AU - Jin, J AU - Christianson, D S AU - Torn AD - Energy and Resources Group, University of California, Berkeley, and Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 1 EP - 38 PB - American Meteorological Society, 45 Beacon St. Boston MA 02108-3693 United States VL - 15 IS - 15 SN - 1087-3562, 1087-3562 KW - Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - Regional climate model KW - Afforestation KW - Climate-ecosystem feedbacks KW - Temperature changes KW - Climate models KW - air temperature KW - Climate change KW - Temperature KW - Vegetation KW - Snow cover KW - Atmosphere KW - Boundary conditions KW - vegetation changes KW - Climate and vegetation KW - Numerical simulations KW - natural vegetation KW - Fluid dynamics KW - summer KW - USA, California KW - Future climates KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902372694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+Interactions&rft.atitle=Ecosystem+Feedbacks+to+Climate+Change+in+California%3A+Development%2C+Testing%2C+and+Analysis+Using+a+Coupled+Regional+Atmosphere+and+Land+Surface+Model+%28WRF3-CLM3.5%29&rft.au=Subin%2C+Z+M%3BRiley%2C+W+J%3BJin%2C+J%3BChristianson%2C+D+S%3BTorn&rft.aulast=Subin&rft.aufirst=Z&rft.date=2011-05-01&rft.volume=15&rft.issue=15&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Earth+Interactions&rft.issn=10873562&rft_id=info:doi/10.1175%2F2010EI331.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Number of references - 106 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Temperature changes; Climate and vegetation; Climate models; Numerical simulations; Climate change; Fluid dynamics; Snow cover; Boundary conditions; Future climates; air temperature; natural vegetation; Afforestation; Temperature; summer; Vegetation; Atmosphere; vegetation changes; USA, California DO - http://dx.doi.org/10.1175/2010EI331.1 ER - TY - JOUR T1 - Phased array compaction cell for measurement of the transversely isotropic elastic properties of compacting sediments AN - 898201978; 2011-088128 AB - Sediments undergoing compaction typically exhibit transversely isotropic (TI) elastic properties. We present a new experimental apparatus, the phased array compaction cell, for measuring the TI elastic properties of clay-rich sediments during compaction. This apparatus uses matched sets of P- and S-wave ultrasonic transducers located along the sides of the sample and an ultrasonic P-wave phased array source, together with a miniature P-wave receiver on the top and bottom ends of the sample. The phased array measurements are used to form plane P-waves that provide estimates of the phase velocities over a range of angles. From these measurements, the five TI elastic constants can be recovered as the sediment is compacted, without the need for sample unloading, recoring, or reorienting. This paper provides descriptions of the apparatus, the data processing, and an application demonstrating recovery of the evolving TI properties of a compacting marine sediment sample. JF - Geophysics AU - Nihei, Kurt T AU - Nakagawa, Seiji AU - Reverdy, Frederic AU - Myer, Larry R AU - Duranti, Luca AU - Ball, Greg AU - Bona, Andrej AU - Gurevich, Boris AU - Pervukhina, Marina Y1 - 2011/05// PY - 2011 DA - May 2011 SP - WA113 EP - WA123 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 76 IS - 3 SN - 0016-8033, 0016-8033 KW - soil mechanics KW - P-waves KW - body waves KW - experimental studies KW - transverse isotropy KW - elastic properties KW - techniques KW - elastic waves KW - ultrasonic methods KW - measurement KW - compaction KW - laboratory studies KW - physical properties KW - sediments KW - seismic waves KW - S-waves KW - instruments KW - design KW - arrays KW - acoustical waves KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898201978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Phased+array+compaction+cell+for+measurement+of+the+transversely+isotropic+elastic+properties+of+compacting+sediments&rft.au=Nihei%2C+Kurt+T%3BNakagawa%2C+Seiji%3BReverdy%2C+Frederic%3BMyer%2C+Larry+R%3BDuranti%2C+Luca%3BBall%2C+Greg%3BBona%2C+Andrej%3BGurevich%2C+Boris%3BPervukhina%2C+Marina&rft.aulast=Nihei&rft.aufirst=Kurt&rft.date=2011-05-01&rft.volume=76&rft.issue=3&rft.spage=WA113&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3567160 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 29 N1 - PubXState - OK N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - acoustical waves; arrays; body waves; compaction; design; elastic properties; elastic waves; experimental studies; instruments; laboratory studies; measurement; P-waves; physical properties; S-waves; sediments; seismic waves; soil mechanics; techniques; transverse isotropy; ultrasonic methods DO - http://dx.doi.org/10.1190/1.3567160 ER - TY - JOUR T1 - 3D induced-polarization data inversion for complex resistivity AN - 898161488; 2011-088166 AB - The conductive and capacitive material properties of the subsurface can be quantified through the frequency-dependent complex resistivity. However, the routine three-dimensional (3D) interpretation of voluminous induced polarization (IP) data sets still poses a challenge due to large computational demands and solution nonuniqueness. We have developed a flexible methodology for 3D (spectral) IP data inversion. Our inversion algorithm is adapted from a frequency-domain electromagnetic (EM) inversion method primarily developed for large-scale hydrocarbon and geothermal energy exploration purposes. The method has proven to be efficient by implementing the nonlinear conjugate gradient method with hierarchical parallelism and by using an optimal finite-difference forward modeling mesh design scheme. The method allows for a large range of survey scales, providing a tool for both exploration and environmental applications. We experimented with an image focusing technique to improve the poor depth resolution of surface data sets with small survey spreads. The algorithm's underlying forward modeling operator properly accounts for EM coupling effects; thus, traditionally used EM coupling correction procedures are not needed. The methodology was applied to both synthetic and field data. We tested the benefit of directly inverting EM coupling contaminated data using a synthetic large-scale exploration data set. Afterward, we further tested the monitoring capability of our method by inverting time-lapse data from an environmental remediation experiment near Rifle, Colorado. Similar trends observed in both our solution and another 2D inversion were in accordance with previous findings about the IP effects due to subsurface microbial activity. JF - Geophysics AU - Commer, Michael AU - Newman, Gregory A AU - Williams, Kenneth H AU - Hubbard, Susan S Y1 - 2011/05// PY - 2011 DA - May 2011 SP - F157 EP - F171 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 76 IS - 3 SN - 0016-8033, 0016-8033 KW - United States KW - experimental studies KW - numerical models KW - geophysical surveys KW - Garfield County Colorado KW - three-dimensional models KW - finite difference analysis KW - data acquisition KW - geophysical methods KW - data processing KW - resistivity KW - frequency domain analysis KW - Rifle Colorado KW - Maxwell's equations KW - mathematical methods KW - electromagnetic methods KW - surveys KW - induced polarization KW - Colorado KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898161488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=3D+induced-polarization+data+inversion+for+complex+resistivity&rft.au=Commer%2C+Michael%3BNewman%2C+Gregory+A%3BWilliams%2C+Kenneth+H%3BHubbard%2C+Susan+S&rft.aulast=Commer&rft.aufirst=Michael&rft.date=2011-05-01&rft.volume=76&rft.issue=3&rft.spage=F157&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3560156 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 34 N1 - PubXState - OK N1 - Document feature - illus. incl. tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2013-05-16 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - Colorado; data acquisition; data processing; electromagnetic methods; experimental studies; finite difference analysis; frequency domain analysis; Garfield County Colorado; geophysical methods; geophysical surveys; induced polarization; mathematical methods; Maxwell's equations; numerical models; resistivity; Rifle Colorado; surveys; three-dimensional models; United States DO - http://dx.doi.org/10.1190/1.3560156 ER - TY - JOUR T1 - Influence of amorphous silica layer formation on the dissolution rate of olivine at 90 degrees C and elevated pCO (sub 2) AN - 881451811; 2011-062670 AB - For mitigating against rising levels of atmospheric CO (sub 2) , carbonation of M (super 2+) -bearing silicates has been proposed as a possible option for sequestering CO (sub 2) over long time spans. Due to its rapid far-from-equilibrium dissolution rate and its widespread occurrence in mafic and ultramafic rocks, olivine has been suggested as a potentially good candidate for achieving this goal, although the efficacy of the carbonation reaction still needs to be assessed. With this as a goal, the present study aims at measuring the carbonation rate of San Carlos olivine in batch experiments at 90 degrees C and pCO (sub 2) of 20 and 25 MPa. When the reaction was initiated in pure water, the kinetics of olivine dissolution was controlled by the degree of saturation of the bulk solution with respect to amorphous silica. This yet unrecognized effect for olivine was responsible for a decrease of the dissolution rate by over two orders of magnitude. In long-term (45 days) carbonation experiments with a high surface area to solution volume ratio (SA/V = 24,600 m (super -1) ), the final composition of the solution was close to equilibrium with respect to SiO (sub 2) (am), independent of the initial concentration of dissolved salts (NaCl and NaClO (sub 4) , ranging between 0 and 1 m), and with an aqueous Mg/Si ratio close to that of olivine. No secondary phase other than a ubiquitous thin (< or =40 nm), Si-rich amorphous layer was observed. These results are at odds with classic kinetic modeling of the process. Due to experimental uncertainties, it was not possible to determine precisely the dissolution rate of olivine after 45 days, but the long term alteration of olivine was indirectly estimated to be at least 4 orders of magnitude slower than predicted. Taken together, these results suggest that the formation of amorphous silica layers plays an important role in controlling the rate of olivine dissolution by passivating the surface of olivine, an effect which has yet to be quantified and incorporated into standard reactive-transport codes. JF - Chemical Geology AU - Daval, D AU - Sissmann, Olivier AU - Menguy, N AU - Saldi, G D AU - Guyot, F AU - Martinez, Isabelle AU - Corvisier, J AU - Garcia, Bruno AU - Machouk, Imene AU - Knauss, K G AU - Hellmann, R Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 193 EP - 209 PB - Elsevier, Amsterdam VL - 284 IS - 1-2 SN - 0009-2541, 0009-2541 KW - silicates KW - magnesium KW - X-ray diffraction data KW - igneous rocks KW - mafic composition KW - olivine group KW - fluid phase KW - ultramafic composition KW - layered materials KW - temperature KW - carbon dioxide KW - air pollution KW - mitigation KW - chemical reactions KW - water-rock interaction KW - phase equilibria KW - olivine KW - orthosilicates KW - geochemistry KW - chemical ratios KW - P-T conditions KW - bedrock KW - alkaline earth metals KW - experimental studies KW - amorphous materials KW - pollutants KW - carbonatization KW - pollution KW - free energy KW - solubility KW - TEM data KW - nesosilicates KW - metals KW - crystal chemistry KW - SEM data KW - 01B:Mineralogy of silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881451811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Influence+of+amorphous+silica+layer+formation+on+the+dissolution+rate+of+olivine+at+90+degrees+C+and+elevated+pCO+%28sub+2%29&rft.au=Daval%2C+D%3BSissmann%2C+Olivier%3BMenguy%2C+N%3BSaldi%2C+G+D%3BGuyot%2C+F%3BMartinez%2C+Isabelle%3BCorvisier%2C+J%3BGarcia%2C+Bruno%3BMachouk%2C+Imene%3BKnauss%2C+K+G%3BHellmann%2C+R&rft.aulast=Daval&rft.aufirst=D&rft.date=2011-05-01&rft.volume=284&rft.issue=1-2&rft.spage=193&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2011.02.021 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 85 N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - air pollution; alkaline earth metals; amorphous materials; bedrock; carbon dioxide; carbonatization; chemical ratios; chemical reactions; crystal chemistry; experimental studies; fluid phase; free energy; geochemistry; igneous rocks; layered materials; mafic composition; magnesium; metals; mitigation; nesosilicates; olivine; olivine group; orthosilicates; P-T conditions; phase equilibria; pollutants; pollution; SEM data; silicates; solubility; TEM data; temperature; ultramafic composition; water-rock interaction; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.chemgeo.2011.02.021 ER - TY - JOUR T1 - Dose-response relationship between walking and the attenuation of inherited weight AN - 881449390; 201115347 AB - Genetic factors account for 40%-70% of the variation in body mass index (BMI). We sought to test whether moderate intensity physical activity affected parent-offspring relationships for body mass index and regional adiposity in 26,587 female and 6428 male walkers surveyed in the United States in 2000. Methods: Survey questionnaires provided self-reported usual walking distance, height, weight, and waist circumference, and mother's and father's adiposity (1 = lean, 2 = normal, 3 = overweight, and 4 = very overweight). Regression analyses were used to test whether the contribution of parental adiposities to the walkers' body mass indexes and waist circumferences diminished with walking. Results: In the most sedentary group (walking < 1.5 km/d), average parental adiposity was a significant determinant of the walkers' body mass indexes and waist circumferences (female: P < 10[super]-15; male: P < 10[super]-13). Greater walking distance significantly diminished the effect of average parents' adiposity on the walkers' body mass indexes (female: P < 10[super]-10; male P = 0.003) and waist circumferences (female: P < 10[super]-6; male P = 0.01). Compared to the most sedentary female walkers, the effect of parental adiposity was reduced 36% for body mass indexes and 41% for waist circumferences (corresponding reductions in men were 36% and 46%, respectively). Conclusion: These results suggest that moderate intensity physical activity attenuates inheritance of both total and regional adiposity in a dose-dependent manner. [Copyright Elsevier B.V.] JF - Preventive Medicine AU - Williams, Paul T AD - Life Sciences Division, Lawrence Berkeley National Laboratory, Donner Laboratory, Berkeley, CA 94720, USA ptwilliams@lbl.gov Y1 - 2011/05/01/ PY - 2011 DA - 2011 May 01 SP - 293 EP - 299 PB - Elsevier Ltd, The Netherlands VL - 52 IS - 5 SN - 0091-7435, 0091-7435 KW - Gene-environment Physical activity Prevention Obesity KW - Waist KW - Sedentary KW - Physical activity KW - Walking KW - Body Mass Index KW - Parents KW - article UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881449390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aassia&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Preventive+Medicine&rft.atitle=Dose-response+relationship+between+walking+and+the+attenuation+of+inherited+weight&rft.au=Williams%2C+Paul+T&rft.aulast=Williams&rft.aufirst=Paul&rft.date=2011-05-01&rft.volume=52&rft.issue=5&rft.spage=293&rft.isbn=&rft.btitle=&rft.title=Preventive+Medicine&rft.issn=00917435&rft_id=info:doi/10.1016%2Fj.ypmed.2011.03.008 LA - English DB - Applied Social Sciences Index & Abstracts (ASSIA) N1 - Date revised - 2011-08-04 N1 - Last updated - 2016-09-27 N1 - SubjectsTermNotLitGenreText - Body Mass Index; Walking; Waist; Parents; Physical activity; Sedentary DO - http://dx.doi.org/10.1016/j.ypmed.2011.03.008 ER - TY - JOUR T1 - Factors governing sustainable groundwater pumping near a river AN - 875055912; 2011-056907 JF - Ground Water AU - Zhang, Yingqi AU - Hubbard, Susan AU - Finsterle, Stefan Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 432 EP - 444 PB - Wiley-Blackwell on behalf of National Ground Water Association, Westerville, OH VL - 49 IS - 3 SN - 0017-467X, 0017-467X KW - United States KW - water quality KW - embankments KW - clogging KW - water management KW - unsaturated zone KW - Russian River KW - drinking water KW - ground water KW - California KW - pump tests KW - river banks KW - dynamics KW - sensitivity analysis KW - filtration KW - dams KW - hydrodynamics KW - storms KW - depositional environment KW - Sonoma County California KW - numerical models KW - Mendocino County California KW - sedimentation KW - aquifers KW - case studies KW - riparian environment KW - saturation KW - fine-grained materials KW - sustainable development KW - water resources KW - permeability KW - Santa Rosa Plain KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875055912?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Factors+governing+sustainable+groundwater+pumping+near+a+river&rft.au=Zhang%2C+Yingqi%3BHubbard%2C+Susan%3BFinsterle%2C+Stefan&rft.aulast=Zhang&rft.aufirst=Yingqi&rft.date=2011-05-01&rft.volume=49&rft.issue=3&rft.spage=432&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/10.1111%2Fj.1745-6584.2010.00743.x L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6584 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2011-01-01 N1 - Number of references - 35 N1 - PubXState - OH N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2016-10-25 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aquifers; California; case studies; clogging; dams; depositional environment; drinking water; dynamics; embankments; filtration; fine-grained materials; ground water; hydrodynamics; Mendocino County California; numerical models; permeability; pump tests; riparian environment; river banks; Russian River; Santa Rosa Plain; saturation; sedimentation; sensitivity analysis; Sonoma County California; storms; sustainable development; United States; unsaturated zone; water management; water quality; water resources DO - http://dx.doi.org/10.1111/j.1745-6584.2010.00743.x ER - TY - JOUR T1 - Hydrogeology, chemical and microbial activity measurement through deep permafrost AN - 875012842; 2011-056900 JF - Ground Water AU - Stotler, Randy L AU - Frape, Shaun K AU - Freifeld, Barry M AU - Holden, Brian AU - Onstott, Tullis C AU - Ruskeeniemi, Timo AU - Chan, Eric Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 348 EP - 364 PB - Wiley-Blackwell on behalf of National Ground Water Association, Westerville, OH VL - 49 IS - 3 SN - 0017-467X, 0017-467X KW - permafrost KW - halogens KW - watersheds KW - hydrogeology KW - fluid dynamics KW - reduction KW - hydrology KW - mines KW - alkanes KW - measurement KW - organic compounds KW - Canada KW - Cl-37/Cl-35 KW - brines KW - lacustrine environment KW - hydrocarbons KW - hydraulic conductivity KW - microorganisms KW - fractured materials KW - oxygen KW - isotopes KW - aliphatic hydrocarbons KW - salinity KW - stable isotopes KW - ground water KW - sampling KW - ice KW - Nunavut KW - High Lake KW - chemical properties KW - oxides KW - ecology KW - chemical composition KW - Lupin Mine KW - geochemistry KW - chlorine KW - bedrock KW - methane KW - sulfates KW - isotope ratios KW - Kennearctic River KW - pollution KW - rates KW - O-18/O-16 KW - hydrochemistry KW - aquifers KW - bacteria KW - Western Canada KW - uraninite KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875012842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Hydrogeology%2C+chemical+and+microbial+activity+measurement+through+deep+permafrost&rft.au=Stotler%2C+Randy+L%3BFrape%2C+Shaun+K%3BFreifeld%2C+Barry+M%3BHolden%2C+Brian%3BOnstott%2C+Tullis+C%3BRuskeeniemi%2C+Timo%3BChan%2C+Eric&rft.aulast=Stotler&rft.aufirst=Randy&rft.date=2011-05-01&rft.volume=49&rft.issue=3&rft.spage=348&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/10.1111%2Fj.1745-6584.2010.00724.x L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6584 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2011-01-01 N1 - Number of references - 68 N1 - PubXState - OH N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2016-10-25 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; aquifers; bacteria; bedrock; brines; Canada; chemical composition; chemical properties; chlorine; Cl-37/Cl-35; ecology; fluid dynamics; fractured materials; geochemistry; ground water; halogens; High Lake; hydraulic conductivity; hydrocarbons; hydrochemistry; hydrogeology; hydrology; ice; isotope ratios; isotopes; Kennearctic River; lacustrine environment; Lupin Mine; measurement; methane; microorganisms; mines; Nunavut; O-18/O-16; organic compounds; oxides; oxygen; permafrost; pollution; rates; reduction; salinity; sampling; stable isotopes; sulfates; uraninite; watersheds; Western Canada DO - http://dx.doi.org/10.1111/j.1745-6584.2010.00724.x ER - TY - JOUR T1 - Seawater nutrient and carbonate ion concentrations recorded as P/Ca, Ba/Ca, and U/Ca in the deep-sea coral Desmophyllum dianthus AN - 869790086; 2011-050271 AB - As paleoceanographic archives, deep sea coral skeletons offer the potential for high temporal resolution and precise absolute dating, but have not been fully investigated for geochemical reconstructions of past ocean conditions. Here we assess the utility of skeletal P/Ca, Ba/Ca and U/Ca in the deep sea coral D. dianthus as proxies of dissolved phosphate (remineralized at shallow depths), dissolved barium (trace element with silicate-type distribution) and carbonate ion concentrations, respectively. Measurements of these proxies in globally distributed D. dianthus specimens show clear dependence on corresponding seawater properties. Linear regression fits of mean coral Element/Ca ratios against seawater properties yield the equations: P/Ca (sub coral) (mu mol/mol)=(0.6+ or -0.1) P/Ca (sub sw) (mu mol/mol)-(23+ or -18), R (super 2) =0.6, n=16 and Ba/Ca (sub coral) (mu mol/mol)=(1.4+ or -0.3) Ba/Ca (sub sw) (mu mol/mol)+(0+ or -2), R (super 2) =0.6, n=17; no significant relationship is observed between the residuals of each regression and seawater temperature, salinity, pressure, pH or carbonate ion concentrations, suggesting that these variables were not significant secondary dependencies of these proxies. Four D. dianthus specimens growing at locations with Omega (sub arag) =<0.6 displayed markedly depleted P/Ca compared to the regression based on the remaining samples, a behavior attributed to an undersaturation effect. These corals were excluded from the calibration. Coral U/Ca correlates with seawater carbonate ion: U/Ca (sub coral) (mu mol/mol)=(-0.016+ or -0.003) [CO (sub 3) (super 2-) ] (mu mol/kg)+(3.2+ or -0.3), R (super 2) =0.6, n=17. The residuals of the U/Ca calibration are not significantly related to temperature, salinity, or pressure. Scatter about the linear calibration lines is attributed to imperfect spatial-temporal matches between the selected globally distributed specimens and available water column chemical data, and potentially to unresolved additional effects. The uncertainties of these initial proxy calibration regressions predict that dissolved phosphate could be reconstructed to + or -0.4mu mol/kg (for 1.3-1.9mu mol/kg phosphate), and dissolved Ba to + or -19nmol/kg (for 41-82nmol/kgBa (sub sw) ). Carbonate ion concentration derived from U/Ca has an uncertainty of + or -31mu mol/kg (for 60-120mu mol/kg CO (sub 3) (super 2-) ). The effect of microskeletal variability on P/Ca, Ba/Ca, and U/Ca was also assessed, with emphasis on centers of calcification, Fe-Mn phases, and external contaminants. Overall, the results show strong potential for reconstructing aspects of water mass mixing and biogeochemical processes in intermediate and deep waters using fossil deep-sea corals. JF - Geochimica et Cosmochimica Acta AU - Anagnostou, Eleni AU - Sherrell, Robert M AU - Gagnon, Alex AU - LaVigne, Michele AU - Field, M Paul AU - McDonough, William F Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 2529 EP - 2543 PB - Elsevier, New York, NY VL - 75 IS - 9 SN - 0016-7037, 0016-7037 KW - calcium KW - sea water KW - mass spectra KW - calibration KW - deep-sea environment KW - salinity KW - Desmophyllum KW - barium KW - mixing KW - Anthozoa KW - Invertebrata KW - spectra KW - chemical composition KW - geochemistry KW - chemical ratios KW - P-T conditions KW - processes KW - alkaline earth metals KW - carbonate ion KW - biochemistry KW - phosphorus KW - properties KW - equations KW - hydrochemistry KW - nutrients KW - ICP mass spectra KW - Desmophyllum dianthus KW - organic compounds KW - paleoenvironment KW - metals KW - marine environment KW - mathematical methods KW - uranium KW - reconstruction KW - fossils KW - Cnidaria KW - carbonates KW - actinides KW - 02B:Hydrochemistry KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869790086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Seawater+nutrient+and+carbonate+ion+concentrations+recorded+as+P%2FCa%2C+Ba%2FCa%2C+and+U%2FCa+in+the+deep-sea+coral+Desmophyllum+dianthus&rft.au=Anagnostou%2C+Eleni%3BSherrell%2C+Robert+M%3BGagnon%2C+Alex%3BLaVigne%2C+Michele%3BField%2C+M+Paul%3BMcDonough%2C+William+F&rft.aulast=Anagnostou&rft.aufirst=Eleni&rft.date=2011-05-01&rft.volume=75&rft.issue=9&rft.spage=2529&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2011.02.019 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 96 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; Anthozoa; barium; biochemistry; calcium; calibration; carbonate ion; carbonates; chemical composition; chemical ratios; Cnidaria; deep-sea environment; Desmophyllum; Desmophyllum dianthus; equations; fossils; geochemistry; hydrochemistry; ICP mass spectra; Invertebrata; marine environment; mass spectra; mathematical methods; metals; mixing; nutrients; organic compounds; P-T conditions; paleoenvironment; phosphorus; processes; properties; reconstruction; salinity; sea water; spectra; uranium DO - http://dx.doi.org/10.1016/j.gca.2011.02.019 ER - TY - JOUR T1 - Metabolic stability of 6,7-dialkoxy-4-(2-, 3- and 4-[[super]18F]fluoroanilino)quinazolines, potential EGFR imaging probes AN - 867749659; 14783698 AB - Epidermal growth factor receptors (EGFR), upregulated in many tumor types, have been a target for therapeutic development and molecular imaging. The objective of this study was to evaluate the distribution and metabolic characteristics of fluorine-18 labeled anilinoquinazolines as potential imaging agents for EGFR tyrosine kinase expression. Fluorine-18 labeled fluoronitrobenzenes were prepared by reaction of potassium cryptand [[super]18F]fluoride with 1,2- and 1,4-dinitrobenzenes, and 3-nitro-N,N,N-trimethylanilinium triflate in 5 min. Decay-corrected radiochemical yields of [[super]18F]fluoride incorporation into the nitro-aromatic compounds were 81 +/- 2%, 44 +/- 4% and 77 +/- 5% (n = 3-5) for the 2-, 3- and 4-fluoro isomers, respectively. Sodium borohydride reduction to the corresponding [[super]18F]fluoroanilines was achieved with greater than 80% conversion in 5 min. Coupling of [[super]18F]fluoroaniline-hydrochlorides to 6,7-dimethoxy-4-chloro-quinazoline gave the corresponding 6,7-dimethoxy-4-(2-, 3- and 4-[[super]18F]fluoroanilino)quinazolines in 31 +/- 5%, 17 +/- 2% and 55 +/- 2% radiochemical yield, respectively, while coupling to the 6,7-diethoxy-4-chloro-quinazoline produced 6,7-diethoxy-4-(2-, 3- and 4-[[super]18F]fluoroanilino)quinazolines in 19 +/- 6%, 9 +/- 3% and 36 +/- 6% radiochemical yield, respectively, in 90 min to end of synthesis from [[super]18F]fluoride. Biodistribution of 2- and 4-[[super]18F]fluoroanilinoquinazolines was conducted in tumor-bearing mice (MDA-MB-435 and MDA-MB-468 xenografts). Low tumor uptake (<1% injected dose per gram (ID/g) of tissue up to 3 h postinjection of the radiotracers) was observed. High bone uptake (5-15% ID/g) was noted with the 4-[[super]18F]fluoroanilinoquinazolines. The metabolic stabilities of radiolabeled quinazolines were further evaluated by incubation with human female cryopreserved isolated hepatocytes. Rapid degeneration of the 4-fluoro-substituted compounds to baseline polar metabolites was observed by radio-TLC, whereas, the 2- and 3-[[super]18F]fluoroaniline derivatives were significantly more stable, up to 2 h, corroborating the in vivo biodistribution studies. para-Substituted [[super]18F]fluoroanilines, a common structural motif in radiopharmaceuticals, are highly susceptible to metabolic degradation. JF - Bioorganic and Medicinal Chemistry AU - Vasdev, Neil AU - Dorff, Peter N AU - O'Neil, James P AU - Chin, Frederick T AU - Hanrahan, Stephen AU - VanBrocklin, Henry F AD - Department of Radiotracer Development and Imaging Technology, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States Y1 - 2011/05/01/ PY - 2011 DA - 2011 May 01 SP - 2959 EP - 2965 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 19 IS - 9 SN - 0968-0896, 0968-0896 KW - Biotechnology and Bioengineering Abstracts KW - Computed tomography KW - Cryopreservation KW - Degeneration KW - Epidermal growth factor receptors KW - Hepatocytes KW - Isomers KW - Metabolites KW - Pharmaceuticals KW - Potassium KW - Probes KW - Protein-tyrosine kinase KW - Radioisotopes KW - Sodium KW - Tumors KW - Xenografts KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/867749659?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioorganic+and+Medicinal+Chemistry&rft.atitle=Metabolic+stability+of+6%2C7-dialkoxy-4-%282-%2C+3-+and+4-%5B%5Bsuper%5D18F%5Dfluoroanilino%29quinazolines%2C+potential+EGFR+imaging+probes&rft.au=Vasdev%2C+Neil%3BDorff%2C+Peter+N%3BO%27Neil%2C+James+P%3BChin%2C+Frederick+T%3BHanrahan%2C+Stephen%3BVanBrocklin%2C+Henry+F&rft.aulast=Vasdev&rft.aufirst=Neil&rft.date=2011-05-01&rft.volume=19&rft.issue=9&rft.spage=2959&rft.isbn=&rft.btitle=&rft.title=Bioorganic+and+Medicinal+Chemistry&rft.issn=09680896&rft_id=info:doi/10.1016%2Fj.bmc.2011.03.032 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2013-02-08 N1 - SubjectsTermNotLitGenreText - Hepatocytes; Probes; Potassium; Epidermal growth factor receptors; Metabolites; Tumors; Cryopreservation; Isomers; Sodium; Protein-tyrosine kinase; Computed tomography; Radioisotopes; Pharmaceuticals; Degeneration; Xenografts DO - http://dx.doi.org/10.1016/j.bmc.2011.03.032 ER - TY - JOUR T1 - Building commissioning: a golden opportunity for reducing energy costs and greenhouse gas emissions in the United States AN - 867732706; 14458059 AB - Commissioning is arguably the single most cost-effective strategy for reducing energy, costs, and greenhouse gas emissions in buildings today. Although commissioning has earned increased recognition in recent years, it remains an enigmatic practice whose visibility severely lags its potential. The application of commissioning to new buildings ensures that they deliver or exceed the performance and energy savings promised by their design and intended operation. When applied to existing buildings, commissioning identifies deficiencies and the almost inevitable "drift" from intended performance over time, and carries out interventions to put the building back on course. More formally, commissioning is a systematic, forensic approach to quality assurance and performance risk management, rather than a technology per se. This article presents the world's largest compilation and meta-analysis of commissioning experience and the associated literature, comprising 643 non-residential buildings, 99 million ft super(2) of floorspace, 43 million in commissioning expenditures , and the work of 37 commissioning providers . The median normalized cost to deliver commissioning is 0.30/ft super(2) ( 2009 currencies ) for existing buildings and 1.16/ft super(2) for new construction (or 0.4% of the overall construction cost). The one third of projects for which data are available reveal over 10,000 energy-related deficiencies, the correction of which resulted in 16% median whole-building energy savings in existing buildings and 13% in new construction, with payback times of 1.1 and 4.2years, respectively. Because energy savings exceed commissioning costs, the associated reductions in greenhouse gas emissions come at a "negative" cost of - 110 / tonne CO Unknown character Subscript Unknown character 2 Unknown character / Subscript Unknown character for new buildings and Unknown character Unknown character Unknown character 25/tonne for new construction. Cases with comprehensive commissioning attained nearly twice the overall median level of savings and five times the savings of the least-thorough projects. Significant non-energy benefits such as improved indoor air quality are also achieved. Applying the median whole-building energy-saving values to the US non-residential buildings stock corresponds to an annual energy-saving potential of $30 billion (and 340Mt of CO sub(2)) by the year 2030. JF - Energy Efficiency AU - Mills, Evan AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA, emills@lbl.gov Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 145 EP - 173 PB - Dordrecht VL - 4 IS - 2 SN - 1570-646X, 1570-646X KW - Pollution Abstracts; Sustainability Science Abstracts KW - quality assurance KW - Energy conservation KW - Buildings KW - USA KW - intervention KW - Economics KW - Emissions KW - Greenhouse gases KW - Carbon dioxide KW - Technology KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/867732706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Efficiency&rft.atitle=Building+commissioning%3A+a+golden+opportunity+for+reducing+energy+costs+and+greenhouse+gas+emissions+in+the+United+States&rft.au=Mills%2C+Evan&rft.aulast=Mills&rft.aufirst=Evan&rft.date=2011-05-01&rft.volume=4&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Energy+Efficiency&rft.issn=1570646X&rft_id=info:doi/10.1007%2Fs12053-011-9116-8 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - intervention; quality assurance; Economics; Emissions; Energy conservation; Carbon dioxide; Greenhouse gases; Buildings; Technology; USA DO - http://dx.doi.org/10.1007/s12053-011-9116-8 ER - TY - JOUR T1 - Derivation of equivalent continuous dilution for cyclic, unsteady driving forces AN - 862784337; 14613919 AB - This article uses an analytical approach to determine the dilution of an unsteadily-generated solute in an unsteady solvent stream, under cyclic temporal boundary conditions. The goal is to find a simplified way of showing equivalence of such a process to a reference case where equivalent dilution is defined as a weighted average concentration. This derivation has direct applications to the ventilation of indoor spaces where indoor air quality and energy consumption cannot in general be simultaneously optimized. By solving the equation we can specify how much air we need to use in one ventilation pattern compared to another to obtain same indoor air quality. Because energy consumption is related to the amount of air exchanged by a ventilation system, the equation can be used as a first step to evaluate different ventilation patterns effect on the energy consumption. The use of the derived equation is demonstrated by representative cases of interest in both residential and non-residential buildings. JF - International Journal of Heat and Mass Transfer AU - Sherman, Max H AU - Mortensen, Dorthe K AU - Walker, Iain S AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 2696 EP - 2702 PB - Elsevier Science Ltd., The Boulevard Kidlington Oxford OX5 1GB UK VL - 54 IS - 11-12 SN - 0017-9310, 0017-9310 KW - Pollution Abstracts; Environment Abstracts KW - Dilution KW - Concentration KW - Unsteady ventilation KW - Ventilation KW - Indoor air pollution KW - Solvents KW - Energy consumption KW - Buildings KW - boundary conditions KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/862784337?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Heat+and+Mass+Transfer&rft.atitle=Derivation+of+equivalent+continuous+dilution+for+cyclic%2C+unsteady+driving+forces&rft.au=Sherman%2C+Max+H%3BMortensen%2C+Dorthe+K%3BWalker%2C+Iain+S&rft.aulast=Sherman&rft.aufirst=Max&rft.date=2011-05-01&rft.volume=54&rft.issue=11-12&rft.spage=2696&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Heat+and+Mass+Transfer&rft.issn=00179310&rft_id=info:doi/10.1016%2Fj.ijheatmasstransfer.2010.12.018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Ventilation; Indoor air pollution; Solvents; Energy consumption; Buildings; boundary conditions DO - http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.12.018 ER - TY - JOUR T1 - Enzymatic hydrolysis of cellulose by the cellobiohydrolase domain of CelB from the hyperthermophilic bacterium Caldicellulosiruptor saccharolyticus AN - 1777120176; 14693477 AB - The celB gene of Caldicellulosiruptor saccharolyticus was cloned and expressed in Escherichia coli to create a recombinant biocatalyst for hydrolyzing lignocellulosic biomass at high temperature. The GH5 domain of CelB hydrolyzed 4-nitrophenyl- beta -d-cellobioside and carboxymethyl cellulose with optimum activity at pH 4.7-5.5 and 80 degree C. The recombinant GH5 and CBM3-GH5 constructs were both stable at 80 degree C with half-lives of 23 h and 39 h, respectively, and retained >94% activity after 48 h at 70 degree C. Enzymatic hydrolysis of corn stover and cellulose pretreated with the ionic liquid 1-ethyl-3-methylimidazolium acetate showed that GH5 and CBM3-GH5 primarily produce cellobiose, with product yields for CBM3-GH5 being 1.2- to 2-fold higher than those for GH5. Confocal microscopy of bound protein on cellulose confirmed tighter binding of CBM3-GH5 to cellulose than GH5, indicating that the enhancement of enzymatic activity on solid substrates may be due to the substrate binding activity of CBM3 domain. JF - Bioresource Technology AU - Park, Joshua I AU - Kent, Michael S AU - Datta, Supratim AU - Holmes, Bradley M AU - Huang, Zhaohua AU - Simmons, Blake A AU - Sale, Kenneth L AU - Sapra, Rajat AD - Deconstruction Division, Joint BioEnergy Institute, Emeryville, CA 94608, USA Y1 - 2011/05// PY - 2011 DA - May 2011 SP - 5988 EP - 5994 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 102 IS - 10 SN - 0960-8524, 0960-8524 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Caldicellulosiruptor saccharolyticus KW - Cellulase KW - Cellobiohydrolase KW - Carbohydrate binding module KW - Hyperthermophile KW - Microscopy KW - Corn KW - Cellulose KW - Escherichia coli KW - Recombinant KW - Hydrolysis KW - Binding KW - Confocal UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777120176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioresource+Technology&rft.atitle=Enzymatic+hydrolysis+of+cellulose+by+the+cellobiohydrolase+domain+of+CelB+from+the+hyperthermophilic+bacterium+Caldicellulosiruptor+saccharolyticus&rft.au=Park%2C+Joshua+I%3BKent%2C+Michael+S%3BDatta%2C+Supratim%3BHolmes%2C+Bradley+M%3BHuang%2C+Zhaohua%3BSimmons%2C+Blake+A%3BSale%2C+Kenneth+L%3BSapra%2C+Rajat&rft.aulast=Park&rft.aufirst=Joshua&rft.date=2011-05-01&rft.volume=102&rft.issue=10&rft.spage=5988&rft.isbn=&rft.btitle=&rft.title=Bioresource+Technology&rft.issn=09608524&rft_id=info:doi/10.1016%2Fj.biortech.2011.02.036 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.biortech.2011.02.036 ER - TY - JOUR T1 - An axisymmetric diffusion experiment for the determination of diffusion and sorption coefficients of rock samples AN - 1676578212; 2015-036697 AB - Diffusion anisotropy is a critical property in predicting migration of substances in sedimentary formations with very low permeability. The diffusion anisotropy of sedimentary rocks has been evaluated mainly from laboratory diffusion experiments, in which the directional diffusivities are separately estimated by through-diffusion experiments using different rock samples, or concurrently by in-diffusion experiments in which only the tracer profile in a rock block is measured. To estimate the diffusion anisotropy from a single rock sample, this study proposes an axisymmetric diffusion test, in which tracer diffuses between a cylindrical rock sample and a surrounding solution reservoir. The tracer diffusion between the sample and reservoir can be monitored from the reservoir tracer concentrations, and the tracer profile could also be obtained after dismantling the sample. Semi-analytical solutions are derived for tracer concentrations in both the reservoir and sample, accounting for an anisotropic diffusion tensor of rank two as well as the dilution effects from sampling and replacement of reservoir solution. The transient and steady-state analyses were examined experimentally and numerically for different experimental configurations, but without the need for tracer profiling. These experimental configurations are tested for in- and out-diffusion experiments using Koetoi and Wakkanai mudstones and Shirahama sandstone, and are scrutinized by a numerical approach to identify favorable conditions for parameter estimation. The analysis reveals the difficulty in estimating diffusion anisotropy; test configurations are proposed for enhanced identifiability of diffusion anisotropy. Moreover, it is demonstrated that the axisymmetric diffusion test is efficient in obtaining the sorption parameter from both steady-state and transient data, and in determining the effective diffusion coefficient if isotropic diffusion is assumed. Moreover, measuring reservoir concentrations in an axisymmetric diffusion experiment coupled with tracer profiling may be a promising approach to estimate of diffusion anisotropy of sedimentary rocks. Abstract Copyright (2011) Elsevier, B.V. JF - Journal of Contaminant Hydrology AU - Takeda, Mikio AU - Hiratsuka, T AU - Ito, K AU - Finsterle, S Y1 - 2011/04/25/ PY - 2011 DA - 2011 Apr 25 SP - 114 EP - 129 PB - Elsevier, Amsterdam VL - 123 IS - 3-4 SN - 0169-7722, 0169-7722 KW - hazardous waste KW - sorption KW - anisotropic materials KW - Far East KW - isotopes KW - halogens KW - Europe KW - Switzerland KW - reservoir rocks KW - radioactive waste KW - France KW - laboratory studies KW - sedimentary rocks KW - radioactive isotopes KW - Opalinus Clay KW - Central Europe KW - movement KW - tracers KW - Shirahama Formation KW - Asia KW - water pollution KW - chlorine KW - experimental studies KW - diffusion KW - Western Europe KW - Jurassic KW - pollutants KW - Wakkanai Formation KW - Cl-36 KW - prediction KW - pollution KW - inverse problem KW - migration of elements KW - porosity KW - Mesozoic KW - measurement KW - models KW - Koetoi Formation KW - soil pollution KW - mathematical methods KW - reservoir properties KW - mobilization KW - waste disposal KW - clastic rocks KW - permeability KW - Japan KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676578212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=An+axisymmetric+diffusion+experiment+for+the+determination+of+diffusion+and+sorption+coefficients+of+rock+samples&rft.au=Takeda%2C+Mikio%3BHiratsuka%2C+T%3BIto%2C+K%3BFinsterle%2C+S&rft.aulast=Takeda&rft.aufirst=Mikio&rft.date=2011-04-25&rft.volume=123&rft.issue=3-4&rft.spage=114&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2010.12.012 L2 - http://www.sciencedirect.com/science/journal/01697722 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2015-01-01 N1 - Number of references - 34 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2015-04-30 N1 - SubjectsTermNotLitGenreText - anisotropic materials; Asia; Central Europe; chlorine; Cl-36; clastic rocks; diffusion; Europe; experimental studies; Far East; France; halogens; hazardous waste; inverse problem; isotopes; Japan; Jurassic; Koetoi Formation; laboratory studies; mathematical methods; measurement; Mesozoic; migration of elements; mobilization; models; movement; Opalinus Clay; permeability; pollutants; pollution; porosity; prediction; radioactive isotopes; radioactive waste; reservoir properties; reservoir rocks; sedimentary rocks; Shirahama Formation; soil pollution; sorption; Switzerland; tracers; Wakkanai Formation; waste disposal; water pollution; Western Europe DO - http://dx.doi.org/10.1016/j.jconhyd.2010.12.012 ER - TY - JOUR T1 - Fe3O4 nanoparticle-integrated graphene sheets for high-performance half and full lithium ion cells. AN - 859745745; 21399829 AB - We synthesized Fe(3)O(4) nanoparticle/reduced graphene oxide (RGO-Fe(3)O(4)) nanocomposites and evaluated their performance as anodes in both half and full coin cells. The nanocomposites were synthesized through a chemical co-precipitation of Fe(2+) and Fe(3+) in the presence of graphene oxides within an alkaline solution and a subsequent high-temperature reduction reaction in argon (Ar) environment. The morphology and microstructures of the fabricated RGO-Fe(3)O(4) nanocomposites were characterized using various techniques. The results indicated that the Fe(3)O(4) nanoparticles had relatively homogeneous dispersions on the RGO sheet surfaces. These as-synthesized RGO-Fe(3)O(4) nanocomposites were used as anodes for both half and full lithium-ion cells. Electrochemical measurement results exhibit a high reversible capacity which is about two and a half times higher than that of graphite-based anodes at a 0.05C rate, and an enhanced reversible capacity of about 200 mAh g(-1) even at a high charge/discharge rate of 10C (9260 mA g(-1)) in half cells. Most important of all, these fabricated novel nanostructures also show exceptional capacity retention with the assembled RGO-Fe(3)O(4)/LiNi(1/3)Mn(1/3)Co(1/3)O(2) full cell at different C rates. This outstanding electrochemical behavior can be attributed to the unique microstructure, morphology, texture, surface properties of the nanocomposites, and combinative effects from the different chemical composition in the nanocomposites. JF - Physical chemistry chemical physics : PCCP AU - Ji, Liwen AU - Tan, Zhongkui AU - Kuykendall, Tevye R AU - Aloni, Shaul AU - Xun, Shidi AU - Lin, Eric AU - Battaglia, Vincent AU - Zhang, Yuegang AD - The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA. Y1 - 2011/04/21/ PY - 2011 DA - 2011 Apr 21 SP - 7170 EP - 7177 VL - 13 IS - 15 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/859745745?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physical+chemistry+chemical+physics+%3A+PCCP&rft.atitle=Fe3O4+nanoparticle-integrated+graphene+sheets+for+high-performance+half+and+full+lithium+ion+cells.&rft.au=Ji%2C+Liwen%3BTan%2C+Zhongkui%3BKuykendall%2C+Tevye+R%3BAloni%2C+Shaul%3BXun%2C+Shidi%3BLin%2C+Eric%3BBattaglia%2C+Vincent%3BZhang%2C+Yuegang&rft.aulast=Ji&rft.aufirst=Liwen&rft.date=2011-04-21&rft.volume=13&rft.issue=15&rft.spage=7170&rft.isbn=&rft.btitle=&rft.title=Physical+chemistry+chemical+physics+%3A+PCCP&rft.issn=1463-9084&rft_id=info:doi/10.1039%2Fc1cp20455f LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2011-07-13 N1 - Date created - 2011-03-31 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1039/c1cp20455f ER - TY - JOUR T1 - Theta-shaped plasmonic nanostructures: bringing "dark" multipole plasmon resonances into action via conductive coupling. AN - 862005597; 21425843 AB - Quadrupole plasmon and (octupolar) Fano resonances are induced in lithographically fabricated theta-shaped ring-rod gold nanostructures. The optical response is characterized by measuring the light scattered by individual nanostructures. When the nanorod is brought within 3 nm of the ring wall, a weak quadrupolar resonance is observed due to capacitive coupling, and when a necklike conductive bridge links the nanorod to the nanoring the optical response changes dramatically bringing the quadrupolar resonance into prominence and creating an octupolar Fano resonance. The Fano resonance is observed due to the destructive interference of the octupolar resonance with the overlapping and broadened dipolar resonance. The quadrupolar and Fano resonances are further enhanced by capacitive coupling (near-field interaction) that is favored by the theta-shaped arrangement. The interpretation of the data is supported by FDTD simulation. JF - Nano letters AU - Habteyes, Terefe G AU - Dhuey, Scott AU - Cabrini, Stefano AU - Schuck, P James AU - Leone, Stephen R AD - Department of Chemistry, University of California, and Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States. Y1 - 2011/04/13/ PY - 2011 DA - 2011 Apr 13 SP - 1819 EP - 1825 VL - 11 IS - 4 KW - Gold KW - 7440-57-5 KW - Index Medicus KW - Scattering, Radiation KW - Computer Simulation KW - Electric Conductivity KW - Particle Size KW - Light KW - Materials Testing KW - Surface Plasmon Resonance -- methods KW - Nanostructures -- ultrastructure KW - Nanostructures -- chemistry KW - Models, Chemical KW - Gold -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/862005597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nano+letters&rft.atitle=Theta-shaped+plasmonic+nanostructures%3A+bringing+%22dark%22+multipole+plasmon+resonances+into+action+via+conductive+coupling.&rft.au=Habteyes%2C+Terefe+G%3BDhuey%2C+Scott%3BCabrini%2C+Stefano%3BSchuck%2C+P+James%3BLeone%2C+Stephen+R&rft.aulast=Habteyes&rft.aufirst=Terefe&rft.date=2011-04-13&rft.volume=11&rft.issue=4&rft.spage=1819&rft.isbn=&rft.btitle=&rft.title=Nano+letters&rft.issn=1530-6992&rft_id=info:doi/10.1021%2Fnl200585b LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2011-08-10 N1 - Date created - 2011-04-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1021/nl200585b ER - TY - CPAPER T1 - A systems approach to identification of genomic determinants of therapeutic response T2 - 102nd Annual Meeting of the American Association for Cancer Research AN - 1313089887; 6097420 JF - 102nd Annual Meeting of the American Association for Cancer Research AU - Gray, Joe Y1 - 2011/04/02/ PY - 2011 DA - 2011 Apr 02 KW - genomics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313089887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=102nd+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.atitle=A+systems+approach+to+identification+of+genomic+determinants+of+therapeutic+response&rft.au=Gray%2C+Joe&rft.aulast=Gray&rft.aufirst=Joe&rft.date=2011-04-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=102nd+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.issn=&rft_id=info:doi/ L2 - http://www.aacr.org/home/scientists/meetings--workshops/aacr-annual-meeting-2013/previous-annual-meetings/annual-meeting-2011/program.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - The role of microenvironment in mammary epithelial cell plasticity T2 - 102nd Annual Meeting of the American Association for Cancer Research AN - 1313088468; 6097039 JF - 102nd Annual Meeting of the American Association for Cancer Research AU - Correia, Ana AU - Mori, Hidetoshi AU - Schmitt, Fernando AU - Bissell, Mina Y1 - 2011/04/02/ PY - 2011 DA - 2011 Apr 02 KW - Microenvironments KW - Epithelial cells KW - Mammary gland KW - Plasticity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313088468?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=102nd+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.atitle=The+role+of+microenvironment+in+mammary+epithelial+cell+plasticity&rft.au=Correia%2C+Ana%3BMori%2C+Hidetoshi%3BSchmitt%2C+Fernando%3BBissell%2C+Mina&rft.aulast=Correia&rft.aufirst=Ana&rft.date=2011-04-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=102nd+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.issn=&rft_id=info:doi/ L2 - http://www.aacr.org/home/scientists/meetings--workshops/aacr-annual-meeting-2013/previous-annual-meetings/annual-meeting-2011/program.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - An Integrated Approach to Targeting Breast Cancer Molecular Subtypes and their "Resistance" Phenotypes T2 - 102nd Annual Meeting of the American Association for Cancer Research AN - 1313082520; 6096272 JF - 102nd Annual Meeting of the American Association for Cancer Research AU - Gray, Joe AU - Slamon, Dennis Y1 - 2011/04/02/ PY - 2011 DA - 2011 Apr 02 KW - Breast cancer KW - Phenotypes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313082520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=102nd+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.atitle=An+Integrated+Approach+to+Targeting+Breast+Cancer+Molecular+Subtypes+and+their+%22Resistance%22+Phenotypes&rft.au=Gray%2C+Joe%3BSlamon%2C+Dennis&rft.aulast=Gray&rft.aufirst=Joe&rft.date=2011-04-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=102nd+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.issn=&rft_id=info:doi/ L2 - http://www.aacr.org/home/scientists/meetings--workshops/aacr-annual-meeting-2013/previous-annual-meetings/annual-meeting-2011/program.aspx LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Quantum coherence in photosynthetic complexes AN - 923205860; 15261852 AB - The initial steps of photosynthesis require the absorption and subsequent transfer of energy through an intricate network of pigment-protein complexes. Held within the protein scaffold of these complexes, chromophore molecules are densely packed and fixed in specific geometries relative to one another resulting in Coulombic coupling. Excitation energy transfer through these systems can be accomplished with near unity quantum efficiency [Wraight and Clayton, Biochim. Biophys. Acta 333, 246 (1974)]. While replication of this feat is desirable for artificial photosynthesis, the mechanism by which nature achieves this efficiency is unknown. Recent experiments have revealed the presence of long-lived quantum coherences in photosynthetic pigment-protein complexes spanning bacterial and plant species with a variety of functions and compositions. Its ubiquitous presence and wavelike energy transfer implicate quantum coherence as key to the high efficiency achieved by photosynthesis. JF - Vol. 248, no. 4, pp. 833-838. Apr 2011. AU - Calhoun, Tessa R AU - Fleming, Graham R AD - Department of Chemistry, University of California, Berkeley, CA 94720, USA, grfleming@lbl.gov Y1 - 2011/04// PY - 2011 DA - Apr 2011 SP - 833 EP - 838 VL - 248 IS - 4 SN - 1521-3951, 1521-3951 KW - Microbiology Abstracts B: Bacteriology KW - Photosynthesis KW - Replication KW - Chromophores KW - scaffolds KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/923205860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=&rft.atitle=Quantum+coherence+in+photosynthetic+complexes&rft.au=Calhoun%2C+Tessa+R%3BFleming%2C+Graham+R&rft.aulast=Calhoun&rft.aufirst=Tessa&rft.date=2011-04-01&rft.volume=248&rft.issue=4&rft.spage=833&rft.isbn=&rft.btitle=&rft.title=&rft.issn=15213951&rft_id=info:doi/10.1002%2Fpssb.201000856 L2 - http://onlinelibrary.wiley.com/doi/10.1002/pssb.201000856/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-02-01 N1 - Last updated - 2012-02-24 N1 - SubjectsTermNotLitGenreText - Photosynthesis; Replication; Chromophores; scaffolds DO - http://dx.doi.org/10.1002/pssb.201000856 ER - TY - JOUR T1 - A comparison of point of zero charge measurement methodology AN - 916837103; 2012-012601 AB - Contaminant-transport modeling requires information about the charge of subsurface particle surfaces. Because values are commonly reused many times in a single simulation, small errors can be magnified greatly. Goethite (alpha -FeOOH) and pyrolusite (beta -MnO (sub 2) ) are ubiquitous mineral phases that are especially contaminant reactive. The objective of the present study was to measure and compare the point of zero charge (PZC) using different methods. The pyrolusite PZC was measured with three methods: mass titration (MT) (PZC = 5.9 + or - 0.1), powder addition (PA) (PZC = 5.98 + or - 0.08), and isoelectric point, IEP (PZC = 4.4 + or - 0.1). The IEP measurement was in agreement with literature values. However, MT and PA resulted in a statistically larger PZC than the IEP measurement. The surface area of pyrolusite, 2.2 m (super 2) g (super -1) , was too small to permit PZC determination by the potentiometric titration (PT) method. Goethite PZC values were measured using MT (7.5 + or - 0.1), PT (7.46 + or - 0.09), and PA (7.20 + or - 0.08). The present work presents the first reported instance where MT and PA have been applied to measure the point of zero charge of either pyrolusite or goethite. The results illustrate the importance of using multiple complementary techniques to measure PZC values accurately. JF - Clays and Clay Minerals AU - Cristiano, Elena AU - Hu, Yung-Jin AU - Siegfried, Matthew AU - Kaplan, Daniel AU - Nitsche, Heino Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 107 EP - 115 PB - Clay Minerals Society, Chantilly, VA VL - 59 IS - 2 SN - 0009-8604, 0009-8604 KW - methods KW - experimental studies KW - chemical analysis KW - titration KW - goethite KW - pyrolusite KW - clay mineralogy KW - simulation KW - measurement KW - chemical properties KW - oxides KW - potentiometry KW - geochemistry KW - 06A:Sedimentary petrology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916837103?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Clays+and+Clay+Minerals&rft.atitle=A+comparison+of+point+of+zero+charge+measurement+methodology&rft.au=Cristiano%2C+Elena%3BHu%2C+Yung-Jin%3BSiegfried%2C+Matthew%3BKaplan%2C+Daniel%3BNitsche%2C+Heino&rft.aulast=Cristiano&rft.aufirst=Elena&rft.date=2011-04-01&rft.volume=59&rft.issue=2&rft.spage=107&rft.isbn=&rft.btitle=&rft.title=Clays+and+Clay+Minerals&rft.issn=00098604&rft_id=info:doi/10.1346%2FCCMN.2011.0590201 L2 - http://www.ingentaconnect.com/content/cms/ccm LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Clay Minerals Society | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 40 N1 - PubXState - VA N1 - Document feature - illus. incl. 1 table, 1 plate N1 - Last updated - 2012-06-07 N1 - CODEN - CLCMAB N1 - SubjectsTermNotLitGenreText - chemical analysis; chemical properties; clay mineralogy; experimental studies; geochemistry; goethite; measurement; methods; oxides; potentiometry; pyrolusite; simulation; titration DO - http://dx.doi.org/10.1346/CCMN.2011.0590201 ER - TY - JOUR T1 - Dynamics of a paleoecosystem reef associated with oceanic change in carbonate sedimentary regime and carbon cycling (Oxfordian, Swiss Jura) AN - 869787998; 2011-050377 AB - Herein we report an analysis of an Oxfordian (Upper Jurassic) paleoreef located in the Swiss Jura Mountains. The paleoreef is located in a Middle Oxfordian transitional interval in which sedimentation switched from marl-dominated to carbonate-dominated deposits. The paleoecosystem is composed of four successive fossil communities characterized by microsolenid corals and organisms that specialized in suspension feeding. Carbon isotopes measured from echinoid spine carbonates exhibit a positive trend from approximately 1.0 per mil to 2.5 per mil in delta (super 13) C values from the base to the top of the paleoreef. Comparison of delta (super 13) C curves with organic matter and belemnites shows different patterns not compatible with a global variation of the carbon cycle. Similar fossil assemblages and stratigraphic sequences identical in age are found along the continental margin of the Tethys-Atlantic Ocean. This biolithostratigraphic succession corresponds to increasing delta (super 13) C values of marine and biogenic carbonates, to the transition from marl-dominated to carbonate-dominated deposits, and to the development of carbonate platforms, which together suggest a change in the carbon cycling regime within the Tethys-Atlantic Ocean system. JF - Palaios AU - Bill, Markus AU - O'Dogherty, Luis AU - Baumgartner, Peter O Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 197 EP - 211 PB - Society for Sedimentary Geology, Tulsa, OK VL - 26 IS - 4 SN - 0883-1351, 0883-1351 KW - lithostratigraphy KW - communities KW - Porifera KW - isotopes KW - Saint-Ursanne Switzerland KW - Europe KW - Switzerland KW - stable isotopes KW - paleoecology KW - Central Europe KW - carbon KW - Brachiopoda KW - chemostratigraphy KW - Anthozoa KW - Invertebrata KW - Mollusca KW - Jura Mountains KW - reef environment KW - Upper Jurassic KW - Jurassic KW - isotope ratios KW - C-13/C-12 KW - faunal studies KW - Jura Switzerland KW - Oxfordian KW - Mesozoic KW - geochemical cycle KW - Bivalvia KW - lithofacies KW - sea-level changes KW - Swiss Jura Mountains KW - paleoenvironment KW - Cnidaria KW - carbon cycle KW - 10:Invertebrate paleontology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869787998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Palaios&rft.atitle=Dynamics+of+a+paleoecosystem+reef+associated+with+oceanic+change+in+carbonate+sedimentary+regime+and+carbon+cycling+%28Oxfordian%2C+Swiss+Jura%29&rft.au=Bill%2C+Markus%3BO%27Dogherty%2C+Luis%3BBaumgartner%2C+Peter+O&rft.aulast=Bill&rft.aufirst=Markus&rft.date=2011-04-01&rft.volume=26&rft.issue=4&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Palaios&rft.issn=08831351&rft_id=info:doi/10.2110%2Fpalo.2010.p10-063r L2 - http://www.bioone.org/bioone/?request=get-archive&issn=0883-1351 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 101 N1 - PubXState - OK N1 - Document feature - illus. incl. strat. col., geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Anthozoa; Bivalvia; Brachiopoda; C-13/C-12; carbon; carbon cycle; Central Europe; chemostratigraphy; Cnidaria; communities; Europe; faunal studies; geochemical cycle; Invertebrata; isotope ratios; isotopes; Jura Mountains; Jura Switzerland; Jurassic; lithofacies; lithostratigraphy; Mesozoic; Mollusca; Oxfordian; paleoecology; paleoenvironment; Porifera; reef environment; Saint-Ursanne Switzerland; sea-level changes; stable isotopes; Swiss Jura Mountains; Switzerland; Upper Jurassic DO - http://dx.doi.org/10.2110/palo.2010.p10-063r ER - TY - JOUR T1 - Adaptive implementation of information technology for real-time, basin-scale salinity management in the San Joaquin Basin, USA and Hunter River Basin, Australia AN - 867739336; 14610039 AB - Pollutant trading schemes are market-based strategies that can provide cost-effective and flexible environmental compliance in large river basins. The aim of this paper is to contrast two innovative adaptive strategies for salinity management have been developed in the Hunter River Basin, New South Wales, Australia and in the San Joaquin River Basin, California, USA, respectively. In both instances web-based stakeholder information dissemination has been a key to achieving a high level of stakeholder involvement and the formulation of effective decision support tools for salinity management. A common element to implementation of salinity management strategies in both the Hunter River and San Joaquin River basins has been the concept of river assimilative capacity as a guide for controlling export salt loading and the establishment of a framework for trading of the right to discharge salt load to the Hunter River and San Joaquin River respectively. Both rivers provide basin drainage and the means of exporting salt load to the ocean. The paper compares the opportunities and constraints governing salinity management in the two basins as well as the use of monitoring, modeling and information technology to achieve environmental compliance and sustain irrigated agriculture in an equitable, socially and politically acceptable manner. The paper concludes by placing into broader context some of the issues raised by the comparison of the two approaches to basin salinity management. JF - Agricultural Water Management AU - Quinn, Nigel WT AD - HydroEcological Engineering Advanced Decision Support, Berkeley National Laboratory, 1 Cyclotron Road, Bld. 90-1116, Berkeley, CA 94720, United States, nwquinn@lbl.gov Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 930 EP - 940 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 98 IS - 6 SN - 0378-3774, 0378-3774 KW - Ecology Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts; Pollution Abstracts; Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Salinity KW - Information technology KW - Decision support KW - Modeling KW - Management KW - San Joaquin Basin KW - Hunter River Basin KW - River Basins KW - USA, California, San Joaquin Basin KW - Basins KW - Freshwater KW - Salt loading KW - information technology KW - INE, USA, California KW - stakeholders KW - Rivers KW - River discharge KW - River basins KW - Salts KW - Water management KW - Monitoring KW - Agriculture KW - Compliance KW - USA, California, San Joaquin R. KW - Pollutants KW - Salinity effects KW - PSE, Australia, New South Wales KW - River basin management KW - Drainage KW - Water pollution KW - USA, California, San Joaquin R. basin KW - Oceans KW - SW 3050:Ultimate disposal of wastes KW - AQ 00006:Sewage KW - P 1000:MARINE POLLUTION KW - ENA 12:Oceans & Estuaries KW - M2 556.52:River Systems (556.52) KW - D 04060:Management and Conservation KW - Q2 09126:Sociology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/867739336?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Agricultural+Water+Management&rft.atitle=Adaptive+implementation+of+information+technology+for+real-time%2C+basin-scale+salinity+management+in+the+San+Joaquin+Basin%2C+USA+and+Hunter+River+Basin%2C+Australia&rft.au=Quinn%2C+Nigel+WT&rft.aulast=Quinn&rft.aufirst=Nigel&rft.date=2011-04-01&rft.volume=98&rft.issue=6&rft.spage=930&rft.isbn=&rft.btitle=&rft.title=Agricultural+Water+Management&rft.issn=03783774&rft_id=info:doi/10.1016%2Fj.agwat.2010.11.013 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2016-09-29 N1 - SubjectsTermNotLitGenreText - Water management; Salinity effects; River discharge; River basins; River basin management; Water pollution; Agriculture; Rivers; Salts; Pollutants; Drainage; Oceans; Basins; Salt loading; Salinity; information technology; Compliance; stakeholders; River Basins; Monitoring; USA, California, San Joaquin Basin; USA, California, San Joaquin R.; USA, California, San Joaquin R. basin; INE, USA, California; PSE, Australia, New South Wales; Freshwater DO - http://dx.doi.org/10.1016/j.agwat.2010.11.013 ER - TY - JOUR T1 - Assessment of China's energy-saving and emission-reduction accomplishments and opportunities during the 11th Five Year Plan AN - 861387227; 4180569 AB - From 1980 to 2002, China experienced a 5% average annual reduction in energy consumption per unit of gross domestic product (GDP). With a dramatic reversal of this historic relationship, energy intensity increased 5% per year during 2002-2005. China's 11th Five Year Plan (FYP) set a target of reducing energy intensity by 20% by 2010. This paper assesses selected policies and programs that China has instituted to fulfill the national goal, finding that China made substantial progress and many of the energy-efficiency programs appear to be on track to meet - or in some cases exceed - their energy-saving targets. Most of the Ten Key Projects, the Top-1000 Program, and the Small Plant Closure Program will meet or surpass the 11th FYP savings goals. China's appliance standards and labeling program has become very robust. China has greatly enhanced its enforcement of new building energy standards but energy-efficiency programs for buildings retrofits, as well as the goal of adjusting China's economic structure, are failing. It is important to maintain and strengthen the existing energy-saving policies and programs that are successful while revising programs or adding new policy mechanisms to improve the programs that are not on track to achieve the stated goals. All rights reserved, Elsevier JF - Energy policy AU - Price, Lynn AU - Levine, M D AU - Zhou, N AU - Fridley, D AU - Aden, N AU - Lu, H. AU - McNeil, M AU - Zheng, N AU - Qin, Y AU - Yowargana, P AD - Lawrence Berkeley National Laboratory Y1 - 2011/04// PY - 2011 DA - Apr 2011 SP - 2165 EP - 2178 VL - 39 IS - 4 SN - 0301-4215, 0301-4215 KW - Economics KW - Strategic planning KW - Energy efficiency KW - Energy policy KW - Economic planning KW - Energy conservation KW - Regulation KW - China KW - Carbon emissions KW - Pollution control UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861387227?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+policy&rft.atitle=Assessment+of+China%27s+energy-saving+and+emission-reduction+accomplishments+and+opportunities+during+the+11th+Five+Year+Plan&rft.au=Price%2C+Lynn%3BLevine%2C+M+D%3BZhou%2C+N%3BFridley%2C+D%3BAden%2C+N%3BLu%2C+H.%3BMcNeil%2C+M%3BZheng%2C+N%3BQin%2C+Y%3BYowargana%2C+P&rft.aulast=Price&rft.aufirst=Lynn&rft.date=2011-04-01&rft.volume=39&rft.issue=4&rft.spage=2165&rft.isbn=&rft.btitle=&rft.title=Energy+policy&rft.issn=03014215&rft_id=info:doi/10.1016%2Fj.enpol.2011.02.006 LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2013-06-12 N1 - Last updated - 2013-09-16 N1 - SubjectsTermNotLitGenreText - 4248 10956 2729; 12305 9560; Carbon emissions; 9819 9818; 3975; 4255 4276 4249 2805 3872 554 971; 10742; 4261 5574 10472; 93 116 30 DO - http://dx.doi.org/10.1016/j.enpol.2011.02.006 ER - TY - JOUR T1 - Linking leaf transcript levels to whole plant analyses provides mechanistic insights to the impact of warming and altered water availability in an annual grass AN - 860376246; 14399036 AB - Insights into the effects of climatic changes on primary metabolism in plants will enhance our understanding of ecosystem response to global climate change. In a greenhouse experiment, we studied the impact of total annual rainfall, intermittent wet and dry periods, and increased soil and air temperature (+3 degree C) on an annual C3 grass, Avena barbata, dominant in many California and Mediterranean grasslands. In order to gain a mechanistic understanding of plant response, analyses were carried out at scales ranging from the leaf (gene expression and enzyme activity) to the whole plant (biomass and phenology). Plant gene expression was more responsive to short-term changes in water availability (wet vs. dry periods) than to differences in cumulative rainfall. The effect of elevated temperature depended on total rainfall: flowering started earlier in high vs. low temperature under high rainfall, but not under low rainfall. Gene expression indicative of advanced development could be measured in leaves several weeks before flowering, linking gene expression to the phenological impact of altered climate. Given these responses of a dominant annual grass to manipulation of rain and temperature, we suggest that the impact of increased temperature on California annual grasslands will vary between wet and dry years. In wet years, biomass production will increase and flowering will occur earlier compared with dry years. Leaf transcript abundance analyses provided insights into the mechanisms of plant response to warming and altered precipitation patterns. JF - Global Change Biology AU - SWARBRECK, STEPHANIE M AU - Sudderth, Erika A AU - ST.CLAIR, SAMUEL B AU - Salve, Rohit AU - Castanha, Cristina AU - Torn, Margaret S AU - Ackerly, David D AU - Andersen, Gary L AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 1577 EP - 1594 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 17 IS - 4 SN - 1354-1013, 1354-1013 KW - Pollution Abstracts; Sustainability Science Abstracts; Environment Abstracts; Ecology Abstracts KW - Flowering KW - water availability KW - Grasses KW - Rainfall KW - Climate change KW - Climatic changes KW - Abundance KW - Water availability KW - Air temperature KW - Soil KW - Gene expression KW - Phenology KW - INE, USA, California KW - Temperature effects KW - Temperature KW - Leaves KW - Enzymes KW - Transcription KW - Precipitation KW - Biomass KW - Greenhouses KW - Avena barbata KW - Grasslands KW - MED KW - Rain KW - Metabolism KW - M3 1010:Issues in Sustainable Development KW - P 5000:LAND POLLUTION KW - D 04040:Ecosystem and Ecology Studies KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860376246?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Change+Biology&rft.atitle=Linking+leaf+transcript+levels+to+whole+plant+analyses+provides+mechanistic+insights+to+the+impact+of+warming+and+altered+water+availability+in+an+annual+grass&rft.au=SWARBRECK%2C+STEPHANIE+M%3BSudderth%2C+Erika+A%3BST.CLAIR%2C+SAMUEL+B%3BSalve%2C+Rohit%3BCastanha%2C+Cristina%3BTorn%2C+Margaret+S%3BAckerly%2C+David+D%3BAndersen%2C+Gary+L&rft.aulast=SWARBRECK&rft.aufirst=STEPHANIE&rft.date=2011-04-01&rft.volume=17&rft.issue=4&rft.spage=1577&rft.isbn=&rft.btitle=&rft.title=Global+Change+Biology&rft.issn=13541013&rft_id=info:doi/10.1111%2Fj.1365-2486.2010.02359.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Document feature - figure 9 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Temperature effects; Flowering; Grasses; Rainfall; Abundance; Climatic changes; Leaves; Transcription; Enzymes; Precipitation; Biomass; Water availability; Air temperature; Greenhouses; Gene expression; Soil; Grasslands; Phenology; Rain; Metabolism; water availability; Climate change; Temperature; Avena barbata; MED; INE, USA, California DO - http://dx.doi.org/10.1111/j.1365-2486.2010.02359.x ER - TY - JOUR T1 - Lithotrophic iron-oxidizing bacteria produce organic stalks to control mineral growth; implications for biosignature formation AN - 1819897174; 2016-081376 JF - The ISME Journal AU - Chan, Clara S AU - Fakra, Sirine C AU - Emerson, David AU - Fleming, Emily J AU - Edwards, Katrina J Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 717 EP - 727 PB - Nature Publishing Group, London VL - 5 IS - 4 SN - 1751-7362, 1751-7362 KW - sea water KW - iron KW - laboratory studies KW - ferric iron KW - oxides KW - ecology KW - spectra KW - polymers KW - biomineralization KW - experimental studies KW - metabolism KW - biochemistry KW - oxyhydroxides KW - oxidation KW - XAFS spectra KW - electron microscopy data KW - NEXAFS data KW - X-ray spectra KW - TEM data KW - geochemical cycle KW - morphology KW - hydroxides KW - biogenic processes KW - metals KW - bacteria KW - fossils KW - aquatic environment KW - microorganisms KW - 08:General paleontology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1819897174?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+ISME+Journal&rft.atitle=Lithotrophic+iron-oxidizing+bacteria+produce+organic+stalks+to+control+mineral+growth%3B+implications+for+biosignature+formation&rft.au=Chan%2C+Clara+S%3BFakra%2C+Sirine+C%3BEmerson%2C+David%3BFleming%2C+Emily+J%3BEdwards%2C+Katrina+J&rft.aulast=Chan&rft.aufirst=Clara&rft.date=2011-04-01&rft.volume=5&rft.issue=4&rft.spage=717&rft.isbn=&rft.btitle=&rft.title=The+ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2010.173 L2 - http://www.nature.com/ismej/index.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 52 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-09-16 N1 - SubjectsTermNotLitGenreText - aquatic environment; bacteria; biochemistry; biogenic processes; biomineralization; ecology; electron microscopy data; experimental studies; ferric iron; fossils; geochemical cycle; hydroxides; iron; laboratory studies; metabolism; metals; microorganisms; morphology; NEXAFS data; oxidation; oxides; oxyhydroxides; polymers; sea water; spectra; TEM data; X-ray spectra; XAFS spectra DO - http://dx.doi.org/10.1038/ismej.2010.173 ER - TY - JOUR T1 - Thioarsenides; a case for long-range Lewis acid-base-directed van der Waals interactions AN - 1502296480; 2014-013512 AB - Electron density distributions, bond paths, Laplacian and local-energy density properties have been calculated for a number of As (sub 4) S (sub n) (n = 3, 4 and 5) thioarsenide molecular crystals. On the basis of the distributions, the intramolecular As-S and As-As interactions classify as shared bonded interactions, and the intermolecular As-S, As-As and S-S interactions classify as closed-shell van der Waals (vdW) bonded interactions. The bulk of the intermolecular As-S bond paths link regions of locally concentrated electron density (Lewis-base regions) with aligned regions of locally depleted electron density (Lewis-acid regions) on adjacent molecules. The paths are comparable with intermolecular paths reported for several other molecular crystals that link aligned Lewis base and acid regions in a key-lock fashion, interactions that classified as long-range Lewis acid-base-directed vdW interactions. As the bulk of the intermolecular As-S bond paths ( nearly equal 70%) link Lewis acid-base regions on adjacent molecules, it appears that molecules adopt an arrangement that maximizes the number of As-S Lewis acid-base intermolecular bonded interactions. The maximization of the number of Lewis acid-base interactions appears to be connected with the close-packed array adopted by molecules: distorted cubic close-packed arrays are adopted for alacranite, pararealgar, uzonite, realgar and beta -AsS and the distorted hexagonal close-packed arrays adopted by alpha - and beta -dimorphite. A growth mechanism is proposed for thioarsenide molecular crystals from aqueous species that maximizes the number of long-range Lewis acid-base vdW As-S bonded interactions with the resulting directed bond paths structuralizing the molecules as a molecular crystal. Copyright 2010 Springer-Verlag JF - Physics and Chemistry of Minerals AU - Gibbs, G V AU - Wallace, A F AU - Downs, Robert T AU - Ross, N L AU - Cox, D F AU - Rosso, K M Y1 - 2011/04// PY - 2011 DA - April 2011 SP - 267 EP - 291 PB - Springer-Verlag, Berlin - New York VL - 38 IS - 4 SN - 0342-1791, 0342-1791 KW - realgar KW - dimorphite KW - thioarsenides KW - arsenides KW - van der Waals interactions KW - sulfosalts KW - crystal structure KW - bonding KW - sulfides KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1502296480?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Thioarsenides%3B+a+case+for+long-range+Lewis+acid-base-directed+van+der+Waals+interactions&rft.au=Gibbs%2C+G+V%3BWallace%2C+A+F%3BDowns%2C+Robert+T%3BRoss%2C+N+L%3BCox%2C+D+F%3BRosso%2C+K+M&rft.aulast=Gibbs&rft.aufirst=G&rft.date=2011-04-01&rft.volume=38&rft.issue=4&rft.spage=267&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-010-0402-3 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Date revised - 2014-01-01 N1 - Number of references - 76 N1 - Last updated - 2014-05-15 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - arsenides; bonding; crystal structure; dimorphite; realgar; sulfides; sulfosalts; thioarsenides; van der Waals interactions DO - http://dx.doi.org/10.1007/s00269-010-0402-3 ER - TY - JOUR T1 - Controlling inelastic light scattering quantum pathways in graphene AN - 889385112; 14866319 AB - Inelastic light scattering spectroscopy has, since its first discovery, been an indispensable tool in physical science for probing elementary excitations, such as phonons, magnons and plasmons in both bulk and nanoscale materials. In the quantum mechanical picture of inelastic light scattering, incident photons first excite a set of intermediate electronic states, which then generate crystal elementary excitations and radiate energy-shifted photons. The intermediate electronic excitations therefore have a crucial role as quantum pathways in inelastic light scattering, and this is exemplified by resonant Raman scattering and Raman interference. The ability to control these excitation pathways can open up new opportunities to probe, manipulate and utilize inelastic light scattering. Here we achieve excitation pathway control in graphene with electrostatic doping. Our study reveals quantum interference between different Raman pathways in graphene: when some of the pathways are blocked, the one-phonon Raman intensity does not diminish, as commonly expected, but increases dramatically. This discovery sheds new light on the understanding of resonance Raman scattering in graphene. In addition, we demonstrate hot-electron luminescence in graphene as the Fermi energy approaches half the laser excitation energy. This hot luminescence, which is another form of inelastic light scattering, results from excited-state relaxation channels that become available only in heavily doped graphene. JF - Nature AU - Chen, Chi-Fan AU - Park, Cheol-Hwan AU - Boudouris, Bryan W AU - Horng, Jason AU - Geng, Baisong AU - Girit, Caglar AU - Zettl, Alex AU - Crommie, Michael F AU - Segalman, Rachel A AU - Louie, Steven G AU - Wang, Feng AD - 1] Department of Physics, University of California at Berkeley, Berkeley, California 94720, USA [2] Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Y1 - 2011/03/31/ PY - 2011 DA - 2011 Mar 31 SP - 617 EP - 620 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 471 IS - 7340 SN - 0028-0836, 0028-0836 KW - Solid State and Superconductivity Abstracts (SO); Mechanical & Transportation Engineering Abstracts (MT); METADEX (MD); Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Electronics and Communications Abstracts (EA); Computer and Information Systems Abstracts (CI); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/889385112?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Controlling+inelastic+light+scattering+quantum+pathways+in+graphene&rft.au=Chen%2C+Chi-Fan%3BPark%2C+Cheol-Hwan%3BBoudouris%2C+Bryan+W%3BHorng%2C+Jason%3BGeng%2C+Baisong%3BGirit%2C+Caglar%3BZettl%2C+Alex%3BCrommie%2C+Michael+F%3BSegalman%2C+Rachel+A%3BLouie%2C+Steven+G%3BWang%2C+Feng&rft.aulast=Chen&rft.aufirst=Chi-Fan&rft.date=2011-03-31&rft.volume=471&rft.issue=7340&rft.spage=617&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature09866 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2011-11-11 DO - http://dx.doi.org/10.1038/nature09866 ER - TY - CPAPER T1 - MycoCosm, a fungal genomics resource for comparative fungal genomics T2 - 26th Fungal Genetics Conference (GSA FGC 2011) AN - 1313019321; 6060870 JF - 26th Fungal Genetics Conference (GSA FGC 2011) AU - Aerts, Andrea AU - Kuo, Alan AU - Otillar, Bobby AU - Riley, Robert AU - Shabalov, Igor AU - Nordberg, Henrik AU - Dubchak, Inna AU - Grigoriev, Igor Y1 - 2011/03/15/ PY - 2011 DA - 2011 Mar 15 KW - genomics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1313019321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.atitle=MycoCosm%2C+a+fungal+genomics+resource+for+comparative+fungal+genomics&rft.au=Aerts%2C+Andrea%3BKuo%2C+Alan%3BOtillar%2C+Bobby%3BRiley%2C+Robert%3BShabalov%2C+Igor%3BNordberg%2C+Henrik%3BDubchak%2C+Inna%3BGrigoriev%2C+Igor&rft.aulast=Aerts&rft.aufirst=Andrea&rft.date=2011-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.fgsc.net/26thFGC/26FGCProgramAndAbstracts.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Sequencing the Black Aspergilli species complex T2 - 26th Fungal Genetics Conference (GSA FGC 2011) AN - 1312988101; 6060397 JF - 26th Fungal Genetics Conference (GSA FGC 2011) AU - Kuo, Alan AU - Salamov, Asaf AU - Baker, Scott AU - Grigoriev, Igor Y1 - 2011/03/15/ PY - 2011 DA - 2011 Mar 15 KW - Genetics KW - Epidemiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312988101?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.atitle=Sequencing+the+Black+Aspergilli+species+complex&rft.au=Kuo%2C+Alan%3BSalamov%2C+Asaf%3BBaker%2C+Scott%3BGrigoriev%2C+Igor&rft.aulast=Kuo&rft.aufirst=Alan&rft.date=2011-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.fgsc.net/26thFGC/26FGCProgramAndAbstracts.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Whole-genome duplication in Mucoromycotina? T2 - 26th Fungal Genetics Conference (GSA FGC 2011) AN - 1312943275; 6060337 JF - 26th Fungal Genetics Conference (GSA FGC 2011) AU - Salamov, A AU - Kuo, A AU - Torres-Martinez, S AU - Corrochano, L AU - Grigoriev, I Y1 - 2011/03/15/ PY - 2011 DA - 2011 Mar 15 KW - Genetics KW - Epidemiology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312943275?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.atitle=Whole-genome+duplication+in+Mucoromycotina%3F&rft.au=Salamov%2C+A%3BKuo%2C+A%3BTorres-Martinez%2C+S%3BCorrochano%2C+L%3BGrigoriev%2C+I&rft.aulast=Salamov&rft.aufirst=A&rft.date=2011-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.fgsc.net/26thFGC/26FGCProgramAndAbstracts.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Phylogeny and comparative genome analysis of Basidiomycete fungi T2 - 26th Fungal Genetics Conference (GSA FGC 2011) AN - 1312912363; 6060345 JF - 26th Fungal Genetics Conference (GSA FGC 2011) AU - Riley, Robert AU - Salamov, Asaf AU - Hibbett, David AU - Grigoriev, Igor Y1 - 2011/03/15/ PY - 2011 DA - 2011 Mar 15 KW - Fungi KW - phylogeny KW - Genomes KW - Phylogeny KW - Basidiomycetes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312912363?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.atitle=Phylogeny+and+comparative+genome+analysis+of+Basidiomycete+fungi&rft.au=Riley%2C+Robert%3BSalamov%2C+Asaf%3BHibbett%2C+David%3BGrigoriev%2C+Igor&rft.aulast=Riley&rft.aufirst=Robert&rft.date=2011-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.fgsc.net/26thFGC/26FGCProgramAndAbstracts.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Comparative genomics of Dothideomycetes plant pathogens T2 - 26th Fungal Genetics Conference (GSA FGC 2011) AN - 1312912294; 6060343 JF - 26th Fungal Genetics Conference (GSA FGC 2011) AU - Ohm, Robin AU - Aerts, Andrea AU - Salamov, Asaf AU - Goodwin, Stephen AU - Grigoriev, Igor Y1 - 2011/03/15/ PY - 2011 DA - 2011 Mar 15 KW - Pathogens KW - genomics KW - Dothideomycetes UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312912294?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.atitle=Comparative+genomics+of+Dothideomycetes+plant+pathogens&rft.au=Ohm%2C+Robin%3BAerts%2C+Andrea%3BSalamov%2C+Asaf%3BGoodwin%2C+Stephen%3BGrigoriev%2C+Igor&rft.aulast=Ohm&rft.aufirst=Robin&rft.date=2011-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.fgsc.net/26thFGC/26FGCProgramAndAbstracts.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Developing Parts List for Complex Fungal Systems from Biofuel Crop Ecosystem to Biorefinery T2 - 26th Fungal Genetics Conference (GSA FGC 2011) AN - 1312908491; 6060407 JF - 26th Fungal Genetics Conference (GSA FGC 2011) AU - Grigoriev, Igor Y1 - 2011/03/15/ PY - 2011 DA - 2011 Mar 15 KW - Fuel technology KW - biofuels KW - Crops KW - Biofuels UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312908491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.atitle=Developing+Parts+List+for+Complex+Fungal+Systems+from+Biofuel+Crop+Ecosystem+to+Biorefinery&rft.au=Grigoriev%2C+Igor&rft.aulast=Grigoriev&rft.aufirst=Igor&rft.date=2011-03-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Fungal+Genetics+Conference+%28GSA+FGC+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://www.fgsc.net/26thFGC/26FGCProgramAndAbstracts.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Non-isothermal flow in low permeable porous media; a comparison of Richards' and two-phase flow approaches AN - 928891833; 2012-030046 AB - The present work compares the performance of two alternative flow models for the simulation of thermal-hydraulic coupled processes in low permeable porous media: non-isothermal Richards' and two-phase flow concepts. Both models take vaporization processes into account: however, the Richards' model neglects dynamic pressure variations and bulk flow of the gaseous phase. For the comparison of the two approaches first published, data from a laboratory experiment are studied involving thermally driven moisture flow in a partially saturated bentonite sample. Then a benchmark test of longer-term thermal-hydraulic behavior in the engineered barrier system of a geological nuclear waste repository is analyzed (DECOVALEX project). It was found that both models can be used to reproduce the vaporization process if the intrinsic permeability is relative high. However, when a thermal-hydraulic coupled problem has the same low intrinsic permeability, only the two-phase flow approach provides reasonable results. Copyright 2010 Springer-Verlag JF - Environmental Earth Sciences AU - Wang, Wenqing AU - Rutqvist, Jonny AU - Goerke, Uwe-Jens AU - Birkholzer, Jens T AU - Kolditz, Olaf Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 1197 EP - 1207 PB - Springer, Berlin VL - 62 IS - 6 SN - 1866-6280, 1866-6280 KW - hydraulics KW - capillary pressure KW - moisture KW - waste disposal sites KW - coupling KW - preferential flow KW - fluid dynamics KW - energy balance KW - radioactive waste KW - laboratory studies KW - Richards equation KW - mass balance KW - disposal barriers KW - hydrology KW - experimental studies KW - two-phase models KW - numerical models KW - Darcy's law KW - thermal properties KW - porous materials KW - mathematical models KW - boundary conditions KW - models KW - saturation KW - hydraulic conductivity KW - waste disposal KW - underground disposal KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/928891833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Non-isothermal+flow+in+low+permeable+porous+media%3B+a+comparison+of+Richards%27+and+two-phase+flow+approaches&rft.au=Wang%2C+Wenqing%3BRutqvist%2C+Jonny%3BGoerke%2C+Uwe-Jens%3BBirkholzer%2C+Jens+T%3BKolditz%2C+Olaf&rft.aulast=Wang&rft.aufirst=Wenqing&rft.date=2011-03-01&rft.volume=62&rft.issue=6&rft.spage=1197&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-010-0608-1 L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boundary conditions; capillary pressure; coupling; Darcy's law; disposal barriers; energy balance; experimental studies; fluid dynamics; hydraulic conductivity; hydraulics; hydrology; laboratory studies; mass balance; mathematical models; models; moisture; numerical models; permeability; porous materials; preferential flow; radioactive waste; Richards equation; saturation; thermal properties; two-phase models; underground disposal; waste disposal; waste disposal sites DO - http://dx.doi.org/10.1007/s12665-010-0608-1 ER - TY - JOUR T1 - Permeability of laboratory-formed methane-hydrate-bearing sand; measurements and observations using X-ray computed tomography AN - 890670382; 2011-076703 AB - Methane hydrate was formed in two moist sands and a sand/silt mixture under a confining stress in an X-ray-transparent pressure vessel. Three initial water saturations were used to form three different methane-hydrate saturations in each medium. X-ray computed tomography (CT) was used to observe location-specific density changes caused by hydrate formation and flowing water. Gas-permeability measurements in each test for the dry, moist, frozen, and hydrate-bearing states are presented. As expected, the effective permeabilities (intrinsic permeability of the medium multiplied by the relative permeability) of the moist sands decreased with increasing moisture content. In a series of tests on a single sample, the effective permeability typically decreased as the pore space became more filled in the order of dry, moist, frozen, and hydrate-bearing. In each test, water was flowed through the hydrate-bearing medium and we observed the location-specific changes in water saturation using CT scanning. We compared our data to a number of models, and our relative permeability data compare most favorably with models in which hydrate occupies the pore bodies rather than the pore throats. Inverse modeling (using the data collected from the tests) will be performed to extend the relative permeability measurements. JF - SPE Journal AU - Kneafsey, Timothy J AU - Seol, Yangkoo AU - Gupta, Arvind AU - Tomutsa, Liviu Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 78 EP - 94 PB - Society of Petroleum Engineers, Richardson, TX VL - 16 IS - 1 SN - 1086-055X, 1086-055X KW - hydrates KW - sand KW - petroleum engineering KW - methane KW - clastic sediments KW - aliphatic hydrocarbons KW - silt KW - alkanes KW - waterflooding KW - X-ray spectra KW - porosity KW - measurement KW - organic compounds KW - saturation KW - pore pressure KW - sediments KW - hydrocarbons KW - reservoir properties KW - spectra KW - computed tomography data KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890670382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SPE+Journal&rft.atitle=Permeability+of+laboratory-formed+methane-hydrate-bearing+sand%3B+measurements+and+observations+using+X-ray+computed+tomography&rft.au=Kneafsey%2C+Timothy+J%3BSeol%2C+Yangkoo%3BGupta%2C+Arvind%3BTomutsa%2C+Liviu&rft.aulast=Kneafsey&rft.aufirst=Timothy&rft.date=2011-03-01&rft.volume=16&rft.issue=1&rft.spage=78&rft.isbn=&rft.btitle=&rft.title=SPE+Journal&rft.issn=1086055X&rft_id=info:doi/ L2 - http://www.spe.org/papers/pubs/SPEjournal.php LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 32 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; clastic sediments; computed tomography data; hydrates; hydrocarbons; measurement; methane; organic compounds; permeability; petroleum engineering; pore pressure; porosity; reservoir properties; sand; saturation; sediments; silt; spectra; waterflooding; X-ray spectra ER - TY - JOUR T1 - Hydrogeophysical methods for analyzing aquifer storage and recovery systems AN - 875011782; 2011-054805 JF - Ground Water AU - Minsley, Burke J AU - Ajo-Franklin, Jonathan AU - Mukhopadhyay, Amitabha AU - Morgan, Frank Dale Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 250 EP - 269 PB - Wiley-Blackwell on behalf of National Ground Water Association, Westerville, OH VL - 49 IS - 2 SN - 0017-467X, 0017-467X KW - solute transport KW - dispersivity KW - observation wells KW - coupling KW - storage coefficient KW - simulation KW - ground water KW - Cenozoic KW - Dammam Formation KW - transport KW - electromagnetic methods KW - time domain analysis KW - Kuwait KW - Asia KW - numerical models KW - Eocene KW - injection KW - geophysical methods KW - Paleogene KW - resistivity KW - porosity KW - boundary conditions KW - aquifers KW - Arabian Peninsula KW - Tertiary KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875011782?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Hydrogeophysical+methods+for+analyzing+aquifer+storage+and+recovery+systems&rft.au=Minsley%2C+Burke+J%3BAjo-Franklin%2C+Jonathan%3BMukhopadhyay%2C+Amitabha%3BMorgan%2C+Frank+Dale&rft.aulast=Minsley&rft.aufirst=Burke&rft.date=2011-03-01&rft.volume=49&rft.issue=2&rft.spage=250&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/10.1111%2Fj.1745-6584.2010.00676.x L2 - http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1745-6584 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2011-01-01 N1 - Number of references - 39 N1 - PubXState - OH N1 - Document feature - illus. incl. strat. col., 2 tables, sketch map N1 - Last updated - 2016-09-16 N1 - CODEN - GRWAAP N1 - SubjectsTermNotLitGenreText - aquifers; Arabian Peninsula; Asia; boundary conditions; Cenozoic; coupling; Dammam Formation; dispersivity; electromagnetic methods; Eocene; geophysical methods; ground water; injection; Kuwait; numerical models; observation wells; Paleogene; porosity; resistivity; simulation; solute transport; storage coefficient; Tertiary; time domain analysis; transport DO - http://dx.doi.org/10.1111/j.1745-6584.2010.00676.x ER - TY - JOUR T1 - Multiscale iterative voting for differential analysis of stress response for 2D and 3D cell culture models AN - 860387669; 14375790 AB - Three-dimensional (2D) cell culture models have emerged as the basis for improved cell systems biology. However, there is a gap in robust computational techniques for segmentation of these model systems that are imaged through confocal or deconvolution microscopy. The main issues are the volume of data, overlapping subcellular compartments and variation in scale or size of subcompartments of interest, which lead to ambiguities for quantitative analysis on a cell-by-cell basis. We address these ambiguities through a series of geometric operations that constrain the problem through iterative voting and decomposition strategies. The main contributions of this paper are to (i) extend the previously developed 2D radial voting to an efficient 3D implementation, (ii) demonstrate application of iterative radial voting at multiple subcellular and molecular scales, and (iii) investigate application of the proposed technology to two endpoints between 2D and 3D cell culture models. These endpoints correspond to kinetics of DNA damage repair as measured by phosphorylation of gamma H2AX, and the loss of the membrane-bound E-cadherin protein as a result of ionizing radiation. Preliminary results indicate little difference in the kinetics of the DNA damage protein between 2D and 3D cell culture models; however, differences between membrane-bound E-cadherin are more pronounced. JF - Journal of Microscopy (Oxford) AU - Han, J AU - Chang, H AU - Yang, Q AU - Fontenay, G AU - GROESSER, T AU - BARCELLOS-HOFF, MHELEN AU - Parvin, B AD - Lawrence Berkeley National Laboratory, Berkeley, CA, U.S.A. Y1 - 2011/03// PY - 2011 DA - Mar 2011 SP - 315 EP - 326 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 241 IS - 3 SN - 0022-2720, 0022-2720 KW - Biotechnology and Bioengineering Abstracts KW - Cell culture KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860387669?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Microscopy+%28Oxford%29&rft.atitle=Multiscale+iterative+voting+for+differential+analysis+of+stress+response+for+2D+and+3D+cell+culture+models&rft.au=Han%2C+J%3BChang%2C+H%3BYang%2C+Q%3BFontenay%2C+G%3BGROESSER%2C+T%3BBARCELLOS-HOFF%2C+MHELEN%3BParvin%2C+B&rft.aulast=Han&rft.aufirst=J&rft.date=2011-03-01&rft.volume=241&rft.issue=3&rft.spage=315&rft.isbn=&rft.btitle=&rft.title=Journal+of+Microscopy+%28Oxford%29&rft.issn=00222720&rft_id=info:doi/10.1111%2Fj.1365-2818.2010.03442.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Document feature - figure 14 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Cell culture DO - http://dx.doi.org/10.1111/j.1365-2818.2010.03442.x ER - TY - JOUR T1 - Modeling of coupled deformation and permeability evolution during fault reactivation induced by deep underground injection of CO sub(2) AN - 860381442; 14509802 AB - The interaction between mechanical deformation and fluid flow in fault zones gives rise to a host of coupled hydromechanical processes fundamental to fault instability, induced seismicity, and associated fluid migration. In this paper, we discuss these coupled processes in general and describe three modeling approaches that have been considered to analyze fluid flow and stress coupling in fault-instability processes. First, fault hydromechanical models were tested to investigate fault behavior using different mechanical modeling approaches, including slip interface and finite-thickness elements with isotropic or anisotropic elasto-plastic constitutive models. The results of this investigation showed that fault hydromechanical behavior can be appropriately represented with the least complex alternative, using a finite-thickness element and isotropic plasticity. We utilized this pragmatic approach coupled with a strain-permeability model to study hydromechanical effects on fault instability during deep underground injection of CO sub(2. We demonstrated how such a modeling approach can be applied to determine the likelihood of fault reactivation and to estimate the associated loss of CO) sub(2) from the injection zone. It is shown that shear-enhanced permeability initiated where the fault intersects the injection zone plays an important role in propagating fault instability and permeability enhancement through the overlying caprock. JF - International Journal of Greenhouse Gas Control AU - Cappa, Frederic AU - Rutqvist, Jonny AD - Lawrence Berkeley National Laboratory, Earth Sciences Division, University of California, Berkeley, USA Y1 - 2011/03// PY - 2011 DA - Mar 2011 SP - 336 EP - 346 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 5 IS - 2 SN - 1750-5836, 1750-5836 KW - Pollution Abstracts KW - Carbon dioxide KW - Permeability KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860381442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=Modeling+of+coupled+deformation+and+permeability+evolution+during+fault+reactivation+induced+by+deep+underground+injection+of+CO+sub%282%29&rft.au=Cappa%2C+Frederic%3BRutqvist%2C+Jonny&rft.aulast=Cappa&rft.aufirst=Frederic&rft.date=2011-03-01&rft.volume=5&rft.issue=2&rft.spage=336&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2010.08.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Permeability DO - http://dx.doi.org/10.1016/j.ijggc.2010.08.005 ER - TY - JOUR T1 - Molecular signature of chitin-protein complex in Paleozoic arthropods AN - 857808454; 2011-028205 AB - The conventional geochemical view holds that the chitin and structural protein are not preserved in ancient fossils because they are readily degradable through microbial chitinolysis and proteolysis. Here we show a molecular signature of a relict chitin-protein complex preserved in a Pennsylvanian (310 Ma) scorpion cuticle and a Silurian (417 Ma) eurypterid cuticle via analysis with carbon, nitrogen, and oxygen X-ray absorption near edge structure (XANES) spectromicroscopy. High-resolution X-ray microscopy reveals the complex laminar variation in major biomolecule concentration across modern cuticle; XANES spectra highlight the presence of the characteristic functional groups of the chitin-protein complex. Modification of this complex is evident via changes in organic functional groups. Both fossil cuticles contain considerable aliphatic carbon relative to modern cuticle. However, the concentration of vestigial chitin-protein complex is high, 59% and 53% in the fossil scorpion and eurypterid, respectively. Preservation of a high-nitrogen-content chitin-protein residue in organic arthropod cuticle likely depends on condensation of cuticle-derived fatty acids onto a structurally modified chitin-protein molecular scaffold, thus preserving the remnant chitin-protein complex and cuticle from degradation by microorganisms. JF - Geology (Boulder) AU - Cody, George D AU - Gupta, Neal S AU - Briggs, Derek E G AU - Kilcoyne, A L D AU - Summons, Roger E AU - Kenig, Fabien AU - Plotnick, Roy E AU - Scott, Andrew C Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 255 EP - 258 PB - Geological Society of America (GSA), Boulder, CO VL - 39 IS - 3 SN - 0091-7613, 0091-7613 KW - United States KW - chitin KW - Pennsylvanian KW - Merostomata KW - Upper Carboniferous KW - nitrogen KW - XANES spectra KW - laboratory studies KW - Chelicerata KW - Eurypterida KW - relict materials KW - Invertebrata KW - Williamsville Formation KW - spectra KW - geochemistry KW - experimental studies KW - cuticles KW - modern analogs KW - Illinois KW - Arachnida KW - Paleozoic KW - biochemistry KW - Carboniferous KW - electron microscopy data KW - molecular biology KW - X-ray spectra KW - Silurian KW - Ontario KW - molecular structure KW - organic compounds KW - Moscovian KW - Arthropoda KW - Canada KW - Ridgemount Quarry KW - STXM data KW - Eastern Canada KW - proteins KW - preservation KW - 10:Invertebrate paleontology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/857808454?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geology+%28Boulder%29&rft.atitle=Molecular+signature+of+chitin-protein+complex+in+Paleozoic+arthropods&rft.au=Cody%2C+George+D%3BGupta%2C+Neal+S%3BBriggs%2C+Derek+E+G%3BKilcoyne%2C+A+L+D%3BSummons%2C+Roger+E%3BKenig%2C+Fabien%3BPlotnick%2C+Roy+E%3BScott%2C+Andrew+C&rft.aulast=Cody&rft.aufirst=George&rft.date=2011-03-01&rft.volume=39&rft.issue=3&rft.spage=255&rft.isbn=&rft.btitle=&rft.title=Geology+%28Boulder%29&rft.issn=00917613&rft_id=info:doi/10.1130%2FG31648.1 L2 - http://www.gsajournals.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States | Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 31 N1 - PubXState - CO N1 - Document feature - illus. N1 - SuppNotes - With GSA Data Repository Item 2011092 N1 - Last updated - 2012-06-07 N1 - CODEN - GLGYBA N1 - SubjectsTermNotLitGenreText - Arachnida; Arthropoda; biochemistry; Canada; Carboniferous; Chelicerata; chitin; cuticles; Eastern Canada; electron microscopy data; Eurypterida; experimental studies; geochemistry; Illinois; Invertebrata; laboratory studies; Merostomata; modern analogs; molecular biology; molecular structure; Moscovian; nitrogen; Ontario; organic compounds; Paleozoic; Pennsylvanian; preservation; proteins; relict materials; Ridgemount Quarry; Silurian; spectra; STXM data; United States; Upper Carboniferous; Williamsville Formation; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1130/G31648.1 ER - TY - JOUR T1 - Exploration of resource and transmission expansion decisions in the Western Renewable Energy Zone initiative AN - 857124846; 4176170 AB - The Western Renewable Energy Zone (WREZ) initiative brings together a diverse set of voices to develop data, tools, and a unique forum for coordinating transmission expansion in the Western Interconnection. In this paper we use a new tool developed in the WREZ initiative to evaluate possible renewable resource selection and transmission expansion decisions. We evaluate these decisions under a number of alternative future scenarios centered on meeting 33% of the annual load in the Western Interconnection with new renewable resources located within WREZ-identified resource hubs. Our analysis finds that wind energy is the largest source of renewable energy procured to meet the 33% RE target across nearly all scenarios analyzed (38-65%). Solar energy is almost always the second largest source (14-41%). We find several load zones where wind energy is the least cost resource under a wide range of sensitivity scenarios. Load zones in the Southwest, on the other hand, are found to switch between wind and solar, and therefore to vary transmission expansion decisions, depending on uncertainties and policies that affect the relative economics of each renewable option. Further, we find that even with total transmission expenditures of $17-34 billion these costs still represent just 10-19% of the total delivered cost of renewable energy. All rights reserved, Elsevier JF - Energy policy AU - Mills, Andrew AU - Phadke, A AU - Wiser, R AD - Lawrence Berkeley National Laboratory Y1 - 2011/03// PY - 2011 DA - Mar 2011 SP - 1732 EP - 1745 VL - 39 IS - 3 SN - 0301-4215, 0301-4215 KW - Economics KW - Zoning KW - Production systems KW - Energy policy KW - Energy planning KW - Valuation KW - Cost analysis KW - Electricity KW - U.S.A. KW - Power generation KW - Renewable energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/857124846?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+policy&rft.atitle=Exploration+of+resource+and+transmission+expansion+decisions+in+the+Western+Renewable+Energy+Zone+initiative&rft.au=Mills%2C+Andrew%3BPhadke%2C+A%3BWiser%2C+R&rft.aulast=Mills&rft.aufirst=Andrew&rft.date=2011-03-01&rft.volume=39&rft.issue=3&rft.spage=1732&rft.isbn=&rft.btitle=&rft.title=Energy+policy&rft.issn=03014215&rft_id=info:doi/10.1016%2Fj.enpol.2011.01.002 LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2013-06-12 N1 - Last updated - 2013-09-16 N1 - SubjectsTermNotLitGenreText - 13233 2523 4577 3872 554 971; 10876 4271; 4163 4246; 13793 13183 10728 8524; 4260 3975 4335; 9971 4163 4246; 10277 10257 4722 12224 971; 2920 971 2934 3883; 4261 5574 10472; 433 293 14 DO - http://dx.doi.org/10.1016/j.enpol.2011.01.002 ER - TY - JOUR T1 - Energy savings assessment for digital-to-analog converter boxes AN - 857124544; 4176181 AB - The Digital Television (DTV) Converter Box Coupon Program was administered by the U.S. government to subsidize purchases of digital-to-analog converter boxes, with up to two $40 coupons for each eligible household. In order to qualify as Coupon Eligible Converter Boxes (CECBs), these devices had to meet a number of minimum performance specifications, including energy efficiency standards. The Energy Star Program also established voluntary energy efficiency specifications that are more stringent than the CECB requirements. In this study, we measured the power and energy consumptions for a sample of 12 CECBs (including 6 Energy Star labeled models) in-use in homes and estimated aggregate energy savings produced by the energy efficiency policies. Based on the 35 million coupons redeemed through the end of the program, our analysis indicates that between 2500 and 3700GWh per year are saved as a result of the energy efficiency policies implemented on digital-to-analog converter boxes. The energy savings generated are equivalent to the annual electricity use of 280,000 average US homes. All rights reserved, Elsevier JF - Energy policy AU - Cheung, Hoi Y AU - Meier, A AU - Brown, R AD - Lawrence Berkeley National Laboratory Y1 - 2011/03// PY - 2011 DA - Mar 2011 SP - 1312 EP - 1317 VL - 39 IS - 3 SN - 0301-4215, 0301-4215 KW - Economics KW - Energy efficiency KW - New technology KW - Households KW - Television KW - Energy conservation KW - Electricity KW - U.S.A. UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/857124544?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aibss&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+policy&rft.atitle=Energy+savings+assessment+for+digital-to-analog+converter+boxes&rft.au=Cheung%2C+Hoi+Y%3BMeier%2C+A%3BBrown%2C+R&rft.aulast=Cheung&rft.aufirst=Hoi&rft.date=2011-03-01&rft.volume=39&rft.issue=3&rft.spage=1312&rft.isbn=&rft.btitle=&rft.title=Energy+policy&rft.issn=03014215&rft_id=info:doi/10.1016%2Fj.enpol.2010.12.003 LA - English DB - International Bibliography of the Social Sciences (IBSS) N1 - Date revised - 2013-06-12 N1 - Last updated - 2013-09-16 N1 - SubjectsTermNotLitGenreText - 12648 7862 2572; 8662 12622; 4248 10956 2729; 4163 4246; 6040 5676; 4255 4276 4249 2805 3872 554 971; 433 293 14 DO - http://dx.doi.org/10.1016/j.enpol.2010.12.003 ER - TY - JOUR T1 - Composition and structural aspects of naturally occurring ferrihydrite AN - 1784737177; 2016-035628 AB - A series of naturally occurring ferrihydrites sampled from an acid mine drainage environment were characterized and compared with synthetic 2-line ferrihydrite using high energy X-ray total scattering and pair distribution function analysis, Scanning Transmission X-ray Microscopy (STXM), Transmission Electron Microscopy (TEM), BET N (sub 2) surface area measurements, and chemical extractions in order to place constraints on their structural and physical properties as a function of composition. Overall, the short- and intermediate-range ordering of the natural samples is comparable to synthetic ferrihydrite. However, with increasing Al, Si, and organic matter contents, a decrease in particle size and an increase in structural disorder were observed. Silica is suspected to have a pronounced effect on the crystallinity of ferrihydrite as a result of its inhibitory effect on Fe polymerization and particle growth, and it is likely complexed at the surfaces of ferrihydrite nanoparticles. Aluminum, on the other hand may substitute for Fe (super 3+) in natural ferrihydrite. Organic matter is pervasive and intimately associated with ferrihydrite aggregates, and its presence during ferrihydrite precipitation may have contributed to additional structural disorder. The increase in impurity content affects not only the particle size and structural order of ferrihydrite but may also have a significant effect on its surface reactivity. Abstract Copyright (2011) Elsevier, B.V. JF - Comptes Rendus. Geoscience AU - Cismasu, A Cristina AU - Michel, F Marc AU - Tcaciuc, A Paricia AU - Tyliszczak, Tolek AU - Brown, Gordon E, Jr Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 210 EP - 218 PB - Elsevier, Paris VL - 343 IS - 2-3 SN - 1631-0713, 1631-0713 KW - United States KW - X-ray diffraction data KW - substitution KW - crystal structure KW - New Idria Mine KW - silicon KW - iron KW - crystallinity KW - synchrotron radiation KW - California KW - ferric iron KW - reactivity KW - silica KW - aluminum KW - oxides KW - chemical composition KW - acid mine drainage KW - impurities KW - grain size KW - electron microscopy data KW - ferrihydrite KW - TEM data KW - order-disorder KW - physical properties KW - organic compounds KW - X-ray data KW - precipitation KW - metals KW - San Benito County California KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1784737177?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Comptes+Rendus.+Geoscience&rft.atitle=Composition+and+structural+aspects+of+naturally+occurring+ferrihydrite&rft.au=Cismasu%2C+A+Cristina%3BMichel%2C+F+Marc%3BTcaciuc%2C+A+Paricia%3BTyliszczak%2C+Tolek%3BBrown%2C+Gordon+E%2C+Jr&rft.aulast=Cismasu&rft.aufirst=A&rft.date=2011-03-01&rft.volume=343&rft.issue=2-3&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=Comptes+Rendus.+Geoscience&rft.issn=16310713&rft_id=info:doi/10.1016%2Fj.crte.2010.11.001 L2 - http://www.sciencedirect.com/science/journal/16310713 LA - English DB - GeoRef N1 - Conference title - Colloque de l'Academie des Sciences N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2016-01-01 N1 - Number of references - 55 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2016-04-28 N1 - SubjectsTermNotLitGenreText - acid mine drainage; aluminum; California; chemical composition; crystal structure; crystallinity; electron microscopy data; ferric iron; ferrihydrite; grain size; impurities; iron; metals; New Idria Mine; order-disorder; organic compounds; oxides; physical properties; precipitation; reactivity; San Benito County California; silica; silicon; substitution; synchrotron radiation; TEM data; United States; X-ray data; X-ray diffraction data DO - http://dx.doi.org/10.1016/j.crte.2010.11.001 ER - TY - JOUR T1 - Buoyancy effects on upward brine displacement caused by CO (sub 2) injection AN - 1270038466; 2013-008900 AB - Upward displacement of brine from deep reservoirs driven by pressure increases resulting from CO (sub 2) injection for geologic carbon sequestration may occur through improperly sealed abandoned wells, through permeable faults, or through permeable channels between pinch-outs of shale formations. The concern about upward brine flow is that, upon intrusion into aquifers containing groundwater resources, the brine may degrade groundwater. Because both salinity and temperature increase with depth in sedimentary basins, upward displacement of brine involves lifting fluid that is saline but also warm into shallower regions that contain fresher, cooler water. We have carried out dynamic simulations using TOUGH2/EOS7 of upward displacement of warm, salty water into cooler, fresher aquifers in a highly idealized two-dimensional model consisting of a vertical conduit (representing a well or permeable fault) connecting a deep and a shallow reservoir. Our simulations show that for small pressure increases and/or high-salinity-gradient cases, brine is pushed up the conduit to a new static steady-state equilibrium. On the other hand, if the pressure rise is large enough that brine is pushed up the conduit and into the overlying upper aquifer, flow may be sustained if the dense brine is allowed to spread laterally. In this scenario, dense brine only contacts the lower-most region of the upper aquifer. In a hypothetical case in which strong cooling of the dense brine occurs in the upper reservoir, the brine becomes sufficiently dense that it flows back down into the deeper reservoir from where it came. The brine then heats again in the lower aquifer and moves back up the conduit to repeat the cycle. Parameter studies delineate steady-state (static) and oscillatory solutions and reveal the character and period of oscillatory solutions. Such oscillatory solutions are mostly a curiosity rather than an expected natural phenomenon because in nature the geothermal gradient prevents the cooling in the upper aquifer that occurs in the model. The expected effect of upward brine displacement is either establishment of a new hydrostatic equilibrium or sustained upward flux into the bottom-most region of the upper aquifer. Copyright 2011 Springer Science+Business Media B.V. and 2010 Springer Science+Business Media B.V. (outside the USA) JF - Transport in Porous Media AU - Oldenburg, Curtis M AU - Rinaldi, Antonio Pio Y1 - 2011/03// PY - 2011 DA - March 2011 SP - 525 EP - 540 PB - Springer, Dordrecht VL - 87 IS - 2 SN - 0169-3913, 0169-3913 KW - degradation KW - carbon sequestration KW - shale KW - sedimentary basins KW - injection KW - abandoned oil wells KW - salinity KW - simulation KW - ground water KW - carbon dioxide KW - buoyancy KW - aquifers KW - oil wells KW - sedimentary rocks KW - transport KW - brines KW - basins KW - hydrodynamics KW - clastic rocks KW - saline composition KW - permeability KW - faults KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270038466?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Buoyancy+effects+on+upward+brine+displacement+caused+by+CO+%28sub+2%29+injection&rft.au=Oldenburg%2C+Curtis+M%3BRinaldi%2C+Antonio+Pio&rft.aulast=Oldenburg&rft.aufirst=Curtis&rft.date=2011-03-01&rft.volume=87&rft.issue=2&rft.spage=525&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9699-0 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2013-01-01 N1 - Number of references - 38 N1 - Document feature - illus. N1 - SuppNotes - Based on Publisher-supplied data N1 - Last updated - 2013-01-17 N1 - SubjectsTermNotLitGenreText - abandoned oil wells; aquifers; basins; brines; buoyancy; carbon dioxide; carbon sequestration; clastic rocks; degradation; faults; ground water; hydrodynamics; injection; oil wells; permeability; saline composition; salinity; sedimentary basins; sedimentary rocks; shale; simulation; transport DO - http://dx.doi.org/10.1007/s11242-010-9699-0 ER - TY - JOUR T1 - Barriers to predicting changes in global terrestrial methane fluxes: analyses using CLM4Me, a methane biogeochemistry model integrated in CESM AN - 860380787; 14432428 AB - Terrestrial net CH sub(4) surface fluxes often represent the difference between much larger gross production and consumption fluxes and depend on multiple physical, biological, and chemical mechanisms that are poorly understood and represented in regional- and global-scale biogeochemical models. To characterize uncertainties, study feedbacks between CH sub(4) fluxes and climate, and to guide future model development and experimentation, we developed and tested a new CH sub(4) biogeochemistry model (CLM4Me) integrated in the land component (Community Land Model; CLM4) of the Community Earth System Model (CESM1). CLM4Me includes representations of CH sub(4) production, oxidation, aerenchymous transport, ebullition, aqueous and gaseous diffusion, and fractional inundation. As with most global models, CLM4Me lacks important features for predicting current and future CH sub(4) fluxes, including: vertical representation of soil organic matter, accurate subgrid scale hydrology, realistic representation of inundated system vegetation, anaerobic decomposition, thermokarst dynamics, and aqueous chemistry. We compared the seasonality and magnitude of predicted CH sub(4) emissions to observations from 18 sites and three global atmospheric inversions. Simulated net CH sub(4) emissions using our baseline parameter set were 270, 160, 50, and 70 Tg CH sub(4) m super(-2) yr super(-1) globally, in the tropics, temperate zone, and north of 45 degree N, respectively; these values are within the range of previous estimates. We then used the model to characterize the sensitivity of regional and global CH sub(4) emission estimates to uncertainties in model parameterizations. Of the parameters we tested, the temperature sensitivity of CH sub(4) production, oxidation parameters, and aerenchyma properties had the largest impacts on net CH sub(4) emissions, up to a factor of 4 and 10 at the regional and gridcell scales, respectively. In spite of these uncertainties, we were able to demonstrate that emissions from dissolved CH sub(4) in the transpiration stream are small (<1 Tg CH sub(4) yr super(-1)) and that uncertainty in CH sub(4) emissions from anoxic microsite production is significant. In a 21st century scenario, we found that predicted declines in high-latitude inundation may limit increases in high-latitude CH sub(4) emissions. Due to the high level of remaining uncertainty, we outline observations and experiments that would facilitate improvement of regional and global CH sub(4) biogeochemical models. JF - Biogeosciences Discussions AU - Riley, W J AU - Subin, Z M AU - Lawrence, D M AU - Swenson, S C AU - Torn AU - Meng, L AU - Mahowald, N M AU - Hess, P AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley CA 94720, USA Y1 - 2011/02/24/ PY - 2011 DA - 2011 Feb 24 SP - 1733 EP - 1807 PB - European Geosciences Union, c/o E.O.S.T. Strasbourg Cedex 67084 France VL - 8 IS - 1 SN - 1810-6277, 1810-6277 KW - Ecology Abstracts KW - Temperature effects KW - Methane KW - Biogeochemistry KW - Organic matter KW - Climate KW - Vegetation KW - Soils (organic) KW - Streams KW - Transpiration KW - Decomposition KW - Models KW - Inversion KW - Oxidation KW - Hydrology KW - Diffusion KW - Feedback KW - Seasonal variations KW - D 04030:Models, Methods, Remote Sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860380787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biogeosciences+Discussions&rft.atitle=Barriers+to+predicting+changes+in+global+terrestrial+methane+fluxes%3A+analyses+using+CLM4Me%2C+a+methane+biogeochemistry+model+integrated+in+CESM&rft.au=Riley%2C+W+J%3BSubin%2C+Z+M%3BLawrence%2C+D+M%3BSwenson%2C+S+C%3BTorn%3BMeng%2C+L%3BMahowald%2C+N+M%3BHess%2C+P&rft.aulast=Riley&rft.aufirst=W&rft.date=2011-02-24&rft.volume=8&rft.issue=1&rft.spage=1733&rft.isbn=&rft.btitle=&rft.title=Biogeosciences+Discussions&rft.issn=18106277&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Temperature effects; Methane; Biogeochemistry; Organic matter; Climate; Vegetation; Soils (organic); Decomposition; Transpiration; Streams; Models; Inversion; Oxidation; Hydrology; Feedback; Diffusion; Seasonal variations ER - TY - CPAPER T1 - All-Inorganic Polynuclear Assemblies for Artificial Photosynthesis T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312963343; 6045043 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Frei, Heinz Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Photosynthesis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312963343?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=All-Inorganic+Polynuclear+Assemblies+for+Artificial+Photosynthesis&rft.au=Frei%2C+Heinz&rft.aulast=Frei&rft.aufirst=Heinz&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Putting Together an Energy System Portrait for California T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312962762; 6044961 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Greenblatt, Jeffrey Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - USA, California KW - Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312962762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Putting+Together+an+Energy+System+Portrait+for+California&rft.au=Greenblatt%2C+Jeffrey&rft.aulast=Greenblatt&rft.aufirst=Jeffrey&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - First-Principles Calculations for Energy Storage Applications T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312961483; 6045371 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - Persson, Kristin Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - Storage KW - Energy storage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312961483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=First-Principles+Calculations+for+Energy+Storage+Applications&rft.au=Persson%2C+Kristin&rft.aulast=Persson&rft.aufirst=Kristin&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Holding the Line on Energy Demand T2 - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AN - 1312957129; 6044957 JF - 2011 Annual Meeting of the American Association for the Advancement of Science (AAAS 2011) AU - McMahon, James Y1 - 2011/02/17/ PY - 2011 DA - 2011 Feb 17 KW - energy demand UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312957129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.atitle=Holding+the+Line+on+Energy+Demand&rft.au=McMahon%2C+James&rft.aulast=McMahon&rft.aufirst=James&rft.date=2011-02-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2011+Annual+Meeting+of+the+American+Association+for+the+Advancement+of+Science+%28AAAS+2011%29&rft.issn=&rft_id=info:doi/ L2 - http://aaas.confex.com/aaas/2011/webprogram/start.html#srch=method|and|pge|1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Surface kinetic model for isotopic and trace element fractionation during precipitation of calcite from aqueous solutions AN - 853488815; 14351963 AB - A surface reaction kinetic model is developed for predicting Ca isotope fractionation and metal/Ca ratios of calcite as a function of rate of precipitation from aqueous solution. The model is based on the requirements for dynamic equilibrium; i.e. proximity to equilibrium conditions is determined by the ratio of the net precipitation rate (R sub(p)) to the gross forward precipitation rate (R sub(f)), for conditions where ionic transport to the growing crystal surface is not rate-limiting. The value of R sub(p) has been experimentally measured under varying conditions, but the magnitude of R sub(f) is not generally known, and may depend on several factors. It is posited that, for systems with no trace constituents that alter the surface chemistry, R sub(f) can be estimated from the bulk far-from-equilibrium dissolution rate of calcite (R sub(b) or k sub(b)), since at equilibrium R sub(f) = R sub(b), and R sub(p) = 0. Hence it can be inferred that R sub(f) [asymptotic to] R sub(p) + R sub(b). The dissolution rate of pure calcite is measureable and is known to be a function of temperature and pH. At given temperature and pH, equilibrium precipitation is approached when R sub(p) (=R sub(f) - R sub(b)) R sub(b). For precipitation rates high enough that R sub(p) R sub(b), both isotopic and trace element partitioning are controlled by the kinetics of ion attachment to the mineral surface, which tend to favor more rapid incorporation of the light isotopes of Ca and discriminate weakly between trace metals and Ca. With varying precipitation rate, a transition region between equilibrium and kinetic control occurs near R sub(p) [asymptotic to] R sub(b) for Ca isotopic fractionation. According to this model, Ca isotopic data can be used to estimate R sub(f) for calcite precipitation. Mechanistic models for calcite precipitation indicate that the molecular exchange rate is not constant at constant T and pH, but rather is dependent also on solution saturation state and hence R sub(p). Allowing R sub(b) to vary as consistent with available precipitation rate studies, produces a better fit to some trace element and isotopic data than a model where R sub(b) is constant. This model can account for most of the experimental data in the literature on the dependence of super(44)Ca/ super(40)Ca and metal/Ca fractionation in calcite as a function of precipitation rate and temperature, and also accounts for super(18)O/ super(16)O variations with some assumptions. The apparent temperature dependence of Ca isotope fractionation in calcite may stem from the dependence of R sub(b) on temperature; there should be analogous pH dependence at pH < 6. The proposed model may be valuable for predicting the behavior of isotopic and trace element fractionation for a range of elements of interest in low-temperature aqueous geochemistry. The theory presented is based on measureable thermo-kinetic parameters in contrast to models that require hyper-fast diffusivity in near-surface layers of the solid. JF - Geochimica et Cosmochimica Acta AU - DePaolo, Donald J AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, depaolo@eps.berkeley.edu Y1 - 2011/02/15/ PY - 2011 DA - 2011 Feb 15 SP - 1039 EP - 1056 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 75 IS - 4 SN - 0016-7037, 0016-7037 KW - Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts KW - Trace elements in precipitation KW - Geochemistry KW - Calcite KW - Temperature KW - Hydrogen Ion Concentration KW - Trace Elements KW - Precipitation KW - Model Studies KW - Equilibrium KW - Kinetics KW - Precipitation Rate KW - SW 0815:Precipitation KW - AQ 00002:Water Quality KW - M2 551.577:General Precipitation (551.577) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853488815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Surface+kinetic+model+for+isotopic+and+trace+element+fractionation+during+precipitation+of+calcite+from+aqueous+solutions&rft.au=DePaolo%2C+Donald+J&rft.aulast=DePaolo&rft.aufirst=Donald&rft.date=2011-02-15&rft.volume=75&rft.issue=4&rft.spage=1039&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2010.11.020 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-02-01 N1 - Last updated - 2015-06-12 N1 - SubjectsTermNotLitGenreText - Trace elements in precipitation; Geochemistry; Precipitation; Equilibrium; Kinetics; Temperature; Calcite; Hydrogen Ion Concentration; Trace Elements; Precipitation Rate; Model Studies DO - http://dx.doi.org/10.1016/j.gca.2010.11.020 ER - TY - JOUR T1 - Building energy information systems: user case studies AN - 954608785; 14210368 AB - Measured energy performance data are essential to national efforts to improve building efficiency, as evidenced in recent benchmarking mandates, and in a growing body of work that indicates the value of permanent monitoring and energy information feedback. This paper presents case studies of energy information systems (EIS) at four enterprises and university campuses, focusing on the attained energy savings, and successes and challenges in technology use and integration. EIS are broadly defined as performance monitoring software, data acquisition hardware, and communication systems to store, analyze, and display building energy information. Case investigations showed that the most common energy savings and instances of waste concerned scheduling errors, measurement and verification, and inefficient operations. Data quality is critical to effective EIS use, and is most challenging at the subsystem or component level, and with non-electric energy sources. Sophisticated prediction algorithms may not be well understood but can be applied quite effectively, and sites with custom benchmark models or metrics are more likely to perform analyses external to the EIS. Finally, resources and staffing were identified as a universal challenge, indicating a need to identify additional models of EIS use that extend beyond exclusive in-house use, to analysis services. JF - Energy Efficiency AU - Granderson, Jessica AU - Piette, Mary Ann AU - Ghatikar, Girish AD - Lawrence Berkeley, National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA, JGranderson@lbl.gov Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 17 EP - 30 PB - Dordrecht VL - 4 IS - 1 SN - 1570-646X, 1570-646X KW - Sustainability Science Abstracts KW - case studies KW - Energy efficiency KW - Computer programs KW - Communications KW - benchmarks KW - Energy conservation KW - Information systems KW - Technology KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/954608785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Efficiency&rft.atitle=Building+energy+information+systems%3A+user+case+studies&rft.au=Granderson%2C+Jessica%3BPiette%2C+Mary+Ann%3BGhatikar%2C+Girish&rft.aulast=Granderson&rft.aufirst=Jessica&rft.date=2011-02-01&rft.volume=4&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Energy+Efficiency&rft.issn=1570646X&rft_id=info:doi/10.1007%2Fs12053-010-9084-4 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2014-10-30 N1 - SubjectsTermNotLitGenreText - case studies; Computer programs; Energy efficiency; Communications; benchmarks; Energy conservation; Technology; Information systems DO - http://dx.doi.org/10.1007/s12053-010-9084-4 ER - TY - JOUR T1 - WIST: toolkit for rapid, customized LIMS development AN - 904463614; 14299694 AB - SUMMARY: Workflow Information Storage Toolkit (WIST) is a set of application programming interfaces and web applications that allow for the rapid development of customized laboratory information management systems (LIMS). WIST provides common LIMS input components, and allows them to be arranged and configured using a flexible language that specifies each component's visual and semantic characteristics. WIST includes a complete set of web applications for adding, editing and viewing data, as well as a powerful setup tool that can build new LIMS modules by analyzing existing database schema. JF - Bioinformatics AU - Huang, YWayne AU - Arkin, Adam P AU - Chandonia, John-Marc AD - Physical Biosciences Division, Lawrence Berkeley National Laboratory, Virtual Institute of Microbial Stress and Survival, Department of Bioengineering and Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA Y1 - 2011/02/01/ PY - 2011 DA - 2011 Feb 01 SP - 437 EP - 438 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 27 IS - 3 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts KW - Databases KW - Data processing KW - Language KW - Bioinformatics KW - Internet KW - Semantics KW - Information systems KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904463614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=WIST%3A+toolkit+for+rapid%2C+customized+LIMS+development&rft.au=Huang%2C+YWayne%3BArkin%2C+Adam+P%3BChandonia%2C+John-Marc&rft.aulast=Huang&rft.aufirst=YWayne&rft.date=2011-02-01&rft.volume=27&rft.issue=3&rft.spage=437&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Databases; Data processing; Language; Bioinformatics; Internet; Information systems; Semantics ER - TY - JOUR T1 - Gas production from a cold, stratigraphically-bounded gas hydrate deposit at the Mount Elbert gas hydrate stratigraphic test well, Alaska North Slope; implications of uncertainties AN - 890659856; 2011-078777 JF - Marine and Petroleum Geology AU - Moridis, G J AU - Silpngarmlert, S AU - Reagan, M T AU - Collett, T AU - Zhang, K A2 - Boswell, Ray A2 - Collett, Tim A2 - Anderson, Brian A2 - Hunter, Robert Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 517 EP - 534 PB - Elsevier, Oxford VL - 28 IS - 2 SN - 0264-8172, 0264-8172 KW - United States KW - petroleum exploration KW - permafrost KW - gas hydrates KW - natural gas KW - Mount Elbert test well KW - aliphatic hydrocarbons KW - petroleum KW - simulation KW - production KW - reservoir rocks KW - spatial distribution KW - oil wells KW - sensitivity analysis KW - methane KW - numerical models KW - North Slope KW - numerical analysis KW - alkanes KW - porosity KW - boundary conditions KW - organic compounds KW - saturation KW - hydrocarbons KW - reservoir properties KW - Alaska KW - permeability KW - anisotropy KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890659856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Gas+production+from+a+cold%2C+stratigraphically-bounded+gas+hydrate+deposit+at+the+Mount+Elbert+gas+hydrate+stratigraphic+test+well%2C+Alaska+North+Slope%3B+implications+of+uncertainties&rft.au=Moridis%2C+G+J%3BSilpngarmlert%2C+S%3BReagan%2C+M+T%3BCollett%2C+T%3BZhang%2C+K&rft.aulast=Moridis&rft.aufirst=G&rft.date=2011-02-01&rft.volume=28&rft.issue=2&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2010.01.005 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; aliphatic hydrocarbons; alkanes; anisotropy; boundary conditions; gas hydrates; hydrocarbons; methane; Mount Elbert test well; natural gas; North Slope; numerical analysis; numerical models; oil wells; organic compounds; permafrost; permeability; petroleum; petroleum exploration; porosity; production; reservoir properties; reservoir rocks; saturation; sensitivity analysis; simulation; spatial distribution; United States DO - http://dx.doi.org/10.1016/j.marpetgeo.2010.01.005 ER - TY - JOUR T1 - Regional long-term production modeling from a single well test, Mount Elbert gas hydrate stratigraphic test well, Alaska North Slope AN - 890659848; 2011-078775 JF - Marine and Petroleum Geology AU - Anderson, B J AU - Kurihara, Masanori AU - White, M D AU - Moridis, G J AU - Wilson, Scott J AU - Pooladi-Darvish, M AU - Gaddipati, Manohar AU - Masuda, Y AU - Collett, T S AU - Hunter, Robert B AU - Narita, H AU - Rose, K AU - Boswell, Ray A2 - Boswell, Ray A2 - Collett, Tim A2 - Anderson, Brian A2 - Hunter, Robert Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 493 EP - 501 PB - Elsevier, Oxford VL - 28 IS - 2 SN - 0264-8172, 0264-8172 KW - United States KW - petroleum exploration KW - gas hydrates KW - natural gas KW - well-logging KW - Mount Elbert test well KW - aliphatic hydrocarbons KW - petroleum KW - simulation KW - production KW - oil and gas fields KW - reservoir rocks KW - oil wells KW - P-T conditions KW - methane KW - North Slope KW - statistical analysis KW - Prudhoe Bay Field KW - porous materials KW - alkanes KW - models KW - organic compounds KW - heterogeneous materials KW - saturation KW - formation evaluation KW - regional KW - hydrocarbons KW - reservoir properties KW - Alaska KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/890659848?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Regional+long-term+production+modeling+from+a+single+well+test%2C+Mount+Elbert+gas+hydrate+stratigraphic+test+well%2C+Alaska+North+Slope&rft.au=Anderson%2C+B+J%3BKurihara%2C+Masanori%3BWhite%2C+M+D%3BMoridis%2C+G+J%3BWilson%2C+Scott+J%3BPooladi-Darvish%2C+M%3BGaddipati%2C+Manohar%3BMasuda%2C+Y%3BCollett%2C+T+S%3BHunter%2C+Robert+B%3BNarita%2C+H%3BRose%2C+K%3BBoswell%2C+Ray&rft.aulast=Anderson&rft.aufirst=B&rft.date=2011-02-01&rft.volume=28&rft.issue=2&rft.spage=493&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2010.01.015 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Alaska; aliphatic hydrocarbons; alkanes; formation evaluation; gas hydrates; heterogeneous materials; hydrocarbons; methane; models; Mount Elbert test well; natural gas; North Slope; oil and gas fields; oil wells; organic compounds; P-T conditions; permeability; petroleum; petroleum exploration; porous materials; production; Prudhoe Bay Field; regional; reservoir properties; reservoir rocks; saturation; simulation; statistical analysis; United States; well-logging DO - http://dx.doi.org/10.1016/j.marpetgeo.2010.01.015 ER - TY - JOUR T1 - Understanding tissue specific compositions of bioenergy feedstocks through hyperspectral Raman imaging AN - 888109914; 15039502 AB - Hyperspectral Raman imaging was used to study the tissue/cell type specific distribution of lignin and cellulose polymers within the plant cell walls. Distinct differences in cell wall compositions were identified between two potential bioenergy feedstocks: corn stover and Eucalyptus globulus. Characteristic bands of 627, 1,175, 1,206, and 1,428cm-1 were only observed for corn stover and 1,381cm-1 was only present in E. globulus. One-dimensional and two-dimensional chemical maps of lignin and cellulose were generated for the stem of corn stover, ranging from the epidermis to the pith area and revealed that lignin and cellulose abundance varies significantly among different cell types in the following order: sclerenchyma cells and tracheids (~5 times)>epidermal cells (~3 times)>bundle sheath cells>parenchyma cells. The Raman mapping methods developed on corn stover were also validated on E. globulus and clearly highlighted their difference in lignin composition. Biotechnol. Bioeng. 2011; 108: 286-295. [copy 2010 Wiley Periodicals, Inc. JF - Biotechnology and Bioengineering AU - Sun, Lan AU - Simmons, Blake A AU - Singh, Seema AD - Physical Biosciences Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, 5885 Hollis Street, Emeryville 94608, California; telephone: 925-337-1453; fax: 925-294-3020, seesing@sandia.gov Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 286 EP - 295 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 108 IS - 2 SN - 1097-0290, 1097-0290 KW - Biotechnology and Bioengineering Abstracts KW - Epidermis KW - Plant cells KW - Lignin KW - Cellulose KW - Mapping KW - Sheaths KW - imaging KW - Eucalyptus globulus KW - Cell walls KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/888109914?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+and+Bioengineering&rft.atitle=Understanding+tissue+specific+compositions+of+bioenergy+feedstocks+through+hyperspectral+Raman+imaging&rft.au=Sun%2C+Lan%3BSimmons%2C+Blake+A%3BSingh%2C+Seema&rft.aulast=Sun&rft.aufirst=Lan&rft.date=2011-02-01&rft.volume=108&rft.issue=2&rft.spage=286&rft.isbn=&rft.btitle=&rft.title=Biotechnology+and+Bioengineering&rft.issn=10970290&rft_id=info:doi/10.1002%2Fbit.22931 L2 - http://onlinelibrary.wiley.com/doi/10.1002/bit.22931/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Epidermis; Plant cells; Cellulose; Lignin; Sheaths; Mapping; imaging; Cell walls; Eucalyptus globulus DO - http://dx.doi.org/10.1002/bit.22931 ER - TY - JOUR T1 - Isotopic evidence for the infiltration of mantle and metamorphic CO (sub 2) -H (sub 2) O fluids from below in faulted rocks from the San Andreas fault system AN - 881454590; 2011-064052 AB - To characterize the origin of the fluids involved in the San Andreas Fault (SAF) system, we carried out an isotope study of exhumed faulted rocks from deformation zones, vein fillings and their hosts and the fluid inclusions associated with these materials. Samples were collected from segments along the SAF system selected to provide a depth profile from upper to lower crust. In all, 75 samples from various structures and lithologies from 13 localities were analyzed for noble gas, carbon, and oxygen isotope compositions. Fluid inclusions exhibit helium isotope ratios ( (super 3) He/ (super 4) He) of 0.1-2.5 times the ratio in air, indicating that past fluids percolating through the SAF system contained mantle helium contributions of at least 35%, similar to what has been measured in present-day ground waters associated with the fault (Kennedy et al., 1997). Calcite is the predominant vein mineral and is a common accessory mineral in deformation zones. A systematic variation of C- and O-isotope compositions of carbonates from veins, deformation zones and their hosts suggests percolation by external fluids of similar compositions and origin with the amount of fluid infiltration increasing from host rocks to vein to deformation zones. The isotopic trend observed for carbonates in veins and deformation zones follows that shown by carbonates in host limestones, marbles, and other host rocks, increasing with increasing contribution of deep metamorphic crustal volatiles. At each crustal level, the composition of the infiltrating fluids is thus buffered by deeper metamorphic sources. A negative correlation between calcite delta (super 13) C and fluid inclusion (super 3) He/ (super 4) He is consistent with a mantle origin for a fraction of the infiltrating CO (sub 2) . Noble gas and stable isotope systematics show consistent evidence for the involvement of mantle-derived fluids combined with infiltration of deep metamorphic H (sub 2) O and CO (sub 2) in faulting, supporting the involvement of deep fluids percolating through and perhaps weakening the fault zone. There is no clear evidence for a significant contribution from meteoric water, except for overprinting related to late weathering. JF - Chemical Geology AU - Pili, E AU - Kennedy, B M AU - Conrad, M E AU - Gratier, J P Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 242 EP - 252 PB - Elsevier, Amsterdam VL - 281 IS - 3-4 SN - 0009-2541, 0009-2541 KW - United States KW - oxygen KW - isotopes KW - mantle KW - fluid phase KW - strike-slip faults KW - stable isotopes KW - carbon dioxide KW - California KW - sedimentary rocks KW - water-rock interaction KW - noble gases KW - carbon KW - metamorphic rocks KW - inclusions KW - metasedimentary rocks KW - exhumation KW - helium KW - faults KW - water KW - systems KW - isotope ratios KW - C-13/C-12 KW - O-18/O-16 KW - deformation KW - metamorphism KW - Southern California KW - San Andreas Fault KW - infiltration KW - fluid inclusions KW - He-4/He-3 KW - 02D:Isotope geochemistry KW - 05A:Igneous and metamorphic petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881454590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Isotopic+evidence+for+the+infiltration+of+mantle+and+metamorphic+CO+%28sub+2%29+-H+%28sub+2%29+O+fluids+from+below+in+faulted+rocks+from+the+San+Andreas+fault+system&rft.au=Pili%2C+E%3BKennedy%2C+B+M%3BConrad%2C+M+E%3BGratier%2C+J+P&rft.aulast=Pili&rft.aufirst=E&rft.date=2011-02-01&rft.volume=281&rft.issue=3-4&rft.spage=242&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2010.12.011 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 62 N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - C-13/C-12; California; carbon; carbon dioxide; deformation; exhumation; faults; fluid inclusions; fluid phase; He-4/He-3; helium; inclusions; infiltration; isotope ratios; isotopes; mantle; metamorphic rocks; metamorphism; metasedimentary rocks; noble gases; O-18/O-16; oxygen; San Andreas Fault; sedimentary rocks; Southern California; stable isotopes; strike-slip faults; systems; United States; water; water-rock interaction DO - http://dx.doi.org/10.1016/j.chemgeo.2010.12.011 ER - TY - JOUR T1 - Helium measurements of pore fluids obtained from the San Andreas Fault Observatory at Depth (SAFOD, USA) drill cores AN - 881451176; 2011-062612 AB - (super 4) He accumulated in fluids is a well established geochemical tracer used to study crustal fluid dynamics. Direct fluid samples are not always collectable; therefore, a method to extract rare gases from matrix fluids of whole rocks by diffusion has been adapted. Helium was measured on matrix fluids extracted from sandstones and mudstones recovered during the San Andreas Fault Observatory at Depth (SAFOD) drilling in California, USA. Samples were typically collected as subcores or from drillcore fragments. Helium concentration and isotope ratios were measured 4-6 times on each sample, and indicate a bulk (super 4) He diffusion coefficient of 3.5+ or -1.3X10 (super -8) cm (super 2) s (super -1) at 21 degrees C, compared to previously published diffusion coefficients of 1.2X10 (super -18) cm (super 2) s (super -1) (21 degrees C) to 3.0X10 (super -15) cm (super 2) s (super -1) (150 degrees C) in the sands and clays. Correcting the diffusion coefficient of (super 4) He (sub water) for matrix porosity ( approximately 3%) and tortuosity ( approximately 6-13) produces effective diffusion coefficients of 1X10 (super -8) cm (super 2) s (super -1) (21 degrees C) and 1X10 (super -7) (120 degrees C), effectively isolating pore fluid (super 4) He from the (super 4) He contained in the rock matrix. Model calculations indicate that <6% of helium initially dissolved in pore fluids was lost during the sampling process. Complete and quantitative extraction of the pore fluids provide minimum in situ porosity values for sandstones 2.8+ or -0.4% (SD, n=4) and mudstones 3.1+ or -0.8% (SD, n=4). Copyright 2010 Springer-Verlag JF - Hydrogeology Journal AU - Ali, S AU - Stute, M AU - Torgersen, T AU - Winckler, G AU - Kennedy, B M A2 - Sanford, Ward E. A2 - Aeschbach-Hertig, Werner A2 - Herczeg, Andrew L. Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 237 EP - 247 PB - Springer, Berlin - Heidelberg VL - 19 IS - 1 SN - 1431-2174, 1431-2174 KW - United States KW - isotopes KW - sandstone KW - He-4 KW - fluid dynamics KW - stable isotopes KW - cores KW - ground water KW - California KW - sedimentary rocks KW - transport KW - sampling KW - noble gases KW - Monterey County California KW - tracers KW - Parkfield California KW - helium KW - diffusivity KW - concentration KW - matrix KW - tortuosity KW - San Andreas Fault Observatory at Depth KW - porosity KW - aquifers KW - San Andreas Fault KW - clastic rocks KW - pore water KW - 21:Hydrogeology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881451176?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Helium+measurements+of+pore+fluids+obtained+from+the+San+Andreas+Fault+Observatory+at+Depth+%28SAFOD%2C+USA%29+drill+cores&rft.au=Ali%2C+S%3BStute%2C+M%3BTorgersen%2C+T%3BWinckler%2C+G%3BKennedy%2C+B+M&rft.aulast=Ali&rft.aufirst=S&rft.date=2011-02-01&rft.volume=19&rft.issue=1&rft.spage=237&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs10040-010-0645-6 L2 - http://www.springerlink.com/content/102028/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2011-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; California; clastic rocks; concentration; cores; diffusivity; fluid dynamics; ground water; He-4; helium; isotopes; matrix; Monterey County California; noble gases; Parkfield California; pore water; porosity; sampling; San Andreas Fault; San Andreas Fault Observatory at Depth; sandstone; sedimentary rocks; stable isotopes; tortuosity; tracers; transport; United States DO - http://dx.doi.org/10.1007/s10040-010-0645-6 ER - TY - JOUR T1 - Cross-product extensions of the Gene Ontology AN - 869806595; 14523122 AB - The Gene Ontology (GO) consists of nearly 30,000 classes for describing the activities and locations of gene products. Manual maintenance of ontology of this size is a considerable effort, and errors and inconsistencies inevitably arise. Reasoners can be used to assist with ontology development, automatically placing classes in a subsumption hierarchy based on their properties. However, the historic lack of computable definitions within the GO has prevented the user of these tools. In this paper, we present preliminary results of an ongoing effort to normalize the GO by explicitly stating the definitions of compositional classes in a form that can be used by reasoners. These definitions are partitioned into mutually exclusive cross-product sets, many of which reference other OBO Foundry candidate ontologies for chemical entities, proteins, biological qualities and anatomical entities. Using these logical definitions we are gradually beginning to automate many aspects of ontology development, detecting errors and filling in missing relationships. These definitions also enhance the GO by weaving it into the fabric of a wider collection of interoperating ontologies, increasing opportunities for data integration and enhancing genomic analyses. JF - Journal of Biomedical Informatics AU - Mungall, Christopher J AU - Bada, Michael AU - Berardini, Tanya Z AU - Deegan, Jennifer AU - Ireland, Amelia AU - Harris, Midori A AU - Hill, David P AU - Lomax, Jane AD - Lawrence Berkeley National Laboratory, Mail Stop 64R0121, Berkeley, CA 94720, USA Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 80 EP - 86 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 44 IS - 1 SN - 1532-0464, 1532-0464 KW - Genetics Abstracts; Physical Education Index; Biotechnology and Bioengineering Abstracts KW - GO KW - Ontology KW - Logic KW - Gene KW - Gene expression KW - OWL KW - Reasoning KW - Cross-products KW - CHEBI KW - Cells KW - Anatomy KW - Pathways KW - Term enrichment KW - Fabrics KW - Integration KW - Data processing KW - Analysis KW - Genomic analysis KW - Proteins KW - Development KW - Bioinformatics KW - Activities KW - Maintenance KW - PE 090:Sports Medicine & Exercise Sport Science KW - W 30960:Bioinformatics & Computer Applications KW - G 07780:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869806595?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biomedical+Informatics&rft.atitle=Cross-product+extensions+of+the+Gene+Ontology&rft.au=Mungall%2C+Christopher+J%3BBada%2C+Michael%3BBerardini%2C+Tanya+Z%3BDeegan%2C+Jennifer%3BIreland%2C+Amelia%3BHarris%2C+Midori+A%3BHill%2C+David+P%3BLomax%2C+Jane&rft.aulast=Mungall&rft.aufirst=Christopher&rft.date=2011-02-01&rft.volume=44&rft.issue=1&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biomedical+Informatics&rft.issn=15320464&rft_id=info:doi/10.1016%2Fj.jbi.2010.02.002 LA - English DB - Physical Education Index; ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Integration; Analysis; Proteins; Activities; Maintenance; Fabrics; Data processing; Genomic analysis; Bioinformatics; Development DO - http://dx.doi.org/10.1016/j.jbi.2010.02.002 ER - TY - JOUR T1 - Evolution of the Sequence Ontology terms and relationships AN - 869806572; 14523121 AB - The Sequence Ontology is an established ontology, with a large user community, for the purpose of genomic annotation. We are reforming the ontology to provide better terms and relationships to describe the features of biological sequence, for both genomic and derived sequence. The SO is working within the guidelines of the OBO Foundry to provide interoperability between SO and the other related OBO ontologies. Here, we report changes and improvements made to SO including new relationships to better define the mereological, spatial and temporal aspects of biological sequence. JF - Journal of Biomedical Informatics AU - Mungall, Christopher J AU - Batchelor, Colin AU - Eilbeck, Karen AD - Lawrence Berkeley National Laboratory, Mail Stop 64R0121, Berkeley, CA 94720, USA, keilbeck@genetics.utah.edu Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 87 EP - 93 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 44 IS - 1 SN - 1532-0464, 1532-0464 KW - Biotechnology and Bioengineering Abstracts KW - Sequence Ontology KW - Biomedical ontology KW - Genome annotation KW - genomics KW - Bioinformatics KW - Evolution KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869806572?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biomedical+Informatics&rft.atitle=Evolution+of+the+Sequence+Ontology+terms+and+relationships&rft.au=Mungall%2C+Christopher+J%3BBatchelor%2C+Colin%3BEilbeck%2C+Karen&rft.aulast=Mungall&rft.aufirst=Christopher&rft.date=2011-02-01&rft.volume=44&rft.issue=1&rft.spage=87&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biomedical+Informatics&rft.issn=15320464&rft_id=info:doi/10.1016%2Fj.jbi.2010.03.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Bioinformatics; genomics; Evolution DO - http://dx.doi.org/10.1016/j.jbi.2010.03.002 ER - TY - JOUR T1 - Ultrafast laser induced breakdown spectroscopy for high spatial resolution chemical analysis AN - 869572483; 14525471 AB - Femtosecond laser induced breakdown spectroscopy (LIBS) was used to identify the spatial resolution limitations and assess the minimal detectable mass restrictions in laser-ablation based chemical analysis. The atomic emission of sodium (Na) and potassium (K) dopants in transparent dielectric Mica matrices was studied, to find that both these elements could be detected from 450nm diameter ablation craters, full-width-at-half-maximum (FWHM). Under optimal conditions, mass as low as 220ag was measured, demonstrating the feasibility of using laser-ablation based chemical analysis to achieve high spatial resolution elemental analysis in real-time and at atmospheric pressure conditions. JF - Spectrochimica Acta Part B Atomic Spectroscopy AU - Zorba, Vassilia AU - Mao, Xianglei AU - Russo, Richard E AD - Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 189 EP - 192 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 66 IS - 2 SN - 0584-8547, 0584-8547 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - LIBS KW - Ultrafast laser KW - Spatial resolution KW - Elemental analysis KW - Laser ablation KW - Craters KW - Chemical Analysis KW - Potassium KW - Atmospheric Pressure KW - Spectroscopy KW - Micas KW - Sodium KW - Analytical techniques KW - Atmospheric pressure KW - Lasers KW - Chemical analysis KW - Ablation KW - AQ 00001:Water Resources and Supplies KW - Q5 08504:Effects on organisms KW - SW 0540:Properties of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869572483?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.atitle=Ultrafast+laser+induced+breakdown+spectroscopy+for+high+spatial+resolution+chemical+analysis&rft.au=Zorba%2C+Vassilia%3BMao%2C+Xianglei%3BRusso%2C+Richard+E&rft.aulast=Zorba&rft.aufirst=Vassilia&rft.date=2011-02-01&rft.volume=66&rft.issue=2&rft.spage=189&rft.isbn=&rft.btitle=&rft.title=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.issn=05848547&rft_id=info:doi/10.1016%2Fj.sab.2010.12.008 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Analytical techniques; Potassium; Lasers; Atmospheric pressure; Micas; Chemical analysis; Ablation; Sodium; Craters; Chemical Analysis; Atmospheric Pressure; Spectroscopy DO - http://dx.doi.org/10.1016/j.sab.2010.12.008 ER - TY - JOUR T1 - Laser Ablation Molecular Isotopic Spectrometry AN - 869572464; 14525469 AB - A new method of performing optical isotopic analysis of condensed samples in ambient air and at ambient pressure has been developed: Laser Ablation Molecular Isotopic Spectrometry (LAMIS). The technique uses radiative transitions from molecular species either directly vaporized from a sample or formed by associative mechanisms of atoms or ions in a laser ablation plume. This method is an advanced modification of a known atomic emission technique called laser-induced breakdown spectroscopy (LIBS). The new method -- LAMIS -- can determine not only chemical composition but also isotopic ratios of elements in the sample. Isotopic measurements are enabled by significantly larger isotopic shifts found in molecular spectra relative to atomic spectra. Analysis can be performed from a distance and in real time. No sample preparation or pre-treatment is required. Detection of the isotopes of hydrogen, boron, carbon, and oxygen are discussed to illustrate the technique. JF - Spectrochimica Acta Part B Atomic Spectroscopy AU - Russo, Richard E AU - Bol'shakov, Alexander A AU - Mao, Xianglei AU - McKay, Christopher P AU - Perry, Dale L AU - Sorkhabi, Osman AD - Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720, USA, rerusso@lbl.gov Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 99 EP - 104 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 66 IS - 2 SN - 0584-8547, 0584-8547 KW - Water Resources Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality KW - Chemical composition KW - Spectroscopy KW - Boron KW - Sample Preparation KW - Oxygen KW - Carbon KW - Lasers KW - Chemical Composition KW - Plumes KW - Ablation KW - AQ 00001:Water Resources and Supplies KW - Q5 08502:Methods and instruments KW - SW 0540:Properties of water UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869572464?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.atitle=Laser+Ablation+Molecular+Isotopic+Spectrometry&rft.au=Russo%2C+Richard+E%3BBol%27shakov%2C+Alexander+A%3BMao%2C+Xianglei%3BMcKay%2C+Christopher+P%3BPerry%2C+Dale+L%3BSorkhabi%2C+Osman&rft.aulast=Russo&rft.aufirst=Richard&rft.date=2011-02-01&rft.volume=66&rft.issue=2&rft.spage=99&rft.isbn=&rft.btitle=&rft.title=Spectrochimica+Acta+Part+B+Atomic+Spectroscopy&rft.issn=05848547&rft_id=info:doi/10.1016%2Fj.sab.2011.01.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Chemical composition; Lasers; Boron; Ablation; Oxygen; Sample Preparation; Carbon; Chemical Composition; Spectroscopy; Plumes DO - http://dx.doi.org/10.1016/j.sab.2011.01.007 ER - TY - JOUR T1 - Precipitation and soil impacts on partitioning of subsurface moisture in Avena barbata AN - 859728696; 2011-031260 AB - The primary objective of this study was to assess the impact of two grassland soils and precipitation regimes on soil-moisture dynamics. We set up an experiment in a greenhouse and monitored the soil moisture dynamics in mesocosms planted with Avena barbata, an annual species found in California grasslands. By repeating the precipitation input at regular intervals, we were able to observe plant manipulation of soil moisture during well-defined periods during the growing season. We found that the amount of water partitioned to evapotranspiration, seepage, and soil storage varied among different growth stages. Furthermore, both soil type and precipitation regime had a significant impact on redistributing soil moisture. Whereas in the low-precipitation treatments most water was released to the atmosphere as evapotranspiration, major losses from the high-precipitation treatment occurred as gravity drainage. Observations from this study emphasize the importance of understanding intraseasonal relationships between vegetation, soil, and water. JF - Vadose Zone Journal AU - Salve, Rohit AU - Torn, Margaret Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 437 EP - 449 PB - Soil Science Society of America, Madison, WI VL - 10 IS - 1 KW - United States KW - biomass KW - moisture KW - Santa Ynez California KW - unsaturated zone KW - ecosystems KW - atmospheric precipitation KW - vegetation KW - seepage KW - grasses KW - California KW - spatial distribution KW - laboratory studies KW - hydrologic cycle KW - ecology KW - time domain reflectometry KW - climate KW - water KW - soils KW - hydrology KW - experimental studies KW - monitoring KW - Mendocino County California KW - drainage KW - geophysical methods KW - electrical methods KW - water balance KW - evapotranspiration KW - biota KW - Santa Barbara County California KW - mesocosms KW - seasonal variations KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/859728696?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Precipitation+and+soil+impacts+on+partitioning+of+subsurface+moisture+in+Avena+barbata&rft.au=Salve%2C+Rohit%3BTorn%2C+Margaret&rft.aulast=Salve&rft.aufirst=Rohit&rft.date=2011-02-01&rft.volume=10&rft.issue=1&rft.spage=437&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2010.0055 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 39 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmospheric precipitation; biomass; biota; California; climate; drainage; ecology; ecosystems; electrical methods; evapotranspiration; experimental studies; geophysical methods; grasses; hydrologic cycle; hydrology; laboratory studies; Mendocino County California; mesocosms; moisture; monitoring; Santa Barbara County California; Santa Ynez California; seasonal variations; seepage; soils; spatial distribution; time domain reflectometry; United States; unsaturated zone; vegetation; water; water balance DO - http://dx.doi.org/10.2136/vzj2010.0055 ER - TY - JOUR T1 - Pore-scale simulations to determine the applied hydrodynamic torque and colloid immobilization AN - 859728668; 2011-031243 AB - Values of the applied hydrodynamic torque (T (sub applied) ) and the resisting adhesive torque (T (sub adhesion) ) will determine whether a colloid will be immobilized (T (sub applied) T (sub adhesion) ) on a solid water interface. Previous literature has demonstrated in 1-2 collector (grain) systems that the influence of T (sub applied) on colloid retention can be significant under unfavorable attachment conditions and that only a fraction of the solid surface may contribute to retention. However, many questions remain on how to obtain, analyze, and upscale information on the forces and torques that act on colloids near solid surfaces in porous media. To address some of these gaps in knowledge, high resolution pore-scale water flow simulations were conducted for sphere packs (25 spheres) over a range of Darcy velocities, grain sizes and distributions, and porosities. The spatial variability of T (sub applied) was calculated from this information, and successfully described using a lognormal cumulative density function (CDF). Linear interpolation and scaling techniques were subsequently used to predict the lognormal CDF of T (sub applied) for various colloid sizes, grain sizes and distributions, and water velocities. The lognormal CDF of T (sub applied) was then evaluated at select values of T (sub adhesion) (i.e, interaction energy) to quantify the fraction and locations on the solid surface that contributes to colloid retention (S (sub f) ), and the theoretical maximum solid phase concentration of retained colloids (S (sub max) ). JF - Vadose Zone Journal AU - Bradford, Scott A AU - Torkzaban, Saeed AU - Wiegmann, Andreas Y1 - 2011/02// PY - 2011 DA - February 2011 SP - 252 EP - 261 PB - Soil Science Society of America, Madison, WI VL - 10 IS - 1 KW - water KW - colloidal materials KW - solid-water interface KW - unsaturated zone KW - torque KW - porous materials KW - equations KW - simulation KW - porosity KW - size KW - reactivity KW - transport KW - movement KW - hydrodynamics KW - adhesion KW - mobility KW - colloid transport KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/859728668?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Pore-scale+simulations+to+determine+the+applied+hydrodynamic+torque+and+colloid+immobilization&rft.au=Bradford%2C+Scott+A%3BTorkzaban%2C+Saeed%3BWiegmann%2C+Andreas&rft.aulast=Bradford&rft.aufirst=Scott&rft.date=2011-02-01&rft.volume=10&rft.issue=1&rft.spage=252&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2010.0064 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 45 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adhesion; colloid transport; colloidal materials; equations; hydrodynamics; mobility; movement; porosity; porous materials; reactivity; simulation; size; solid-water interface; torque; transport; unsaturated zone; water DO - http://dx.doi.org/10.2136/vzj2010.0064 ER - TY - JOUR T1 - Production of tranilast [N-(3',4'-dimethoxycinnamoyl)-anthra nilic acid] and its analogs in yeast Saccharomyces cerevisiae AN - 856788259; 14342764 AB - Biological synthesis of therapeutic drugs beneficial for human health using microbes offers an alternative production strategy to the methods that are commonly employed such as direct extraction from source organisms or chemical synthesis. In this study, we evaluated the potential for yeast (Saccharomyces cerevisiae) to be used as a catalyst for the synthesis of tranilast and various tranilast analogs (cinnamoyl anthranilates). Several studies have demonstrated that these phenolic amides have antioxidant properties and potential therapeutic benefits including antiinflammatory, antiproliferative, and antigenotoxic effects. The few cinnamoyl anthranilates naturally produced in plants such as oats and carnations result from the coupling of various hydroxycinnamoyl-CoAs to anthranilic acid. In order to achieve the microbial production of tranilast and several of its analogs, we engineered a yeast strain to co-express a 4-coumarate/CoA ligase (4CL, EC 6.2.1.12) from Arabidopsis thaliana and a hydroxycinnamoyl/benzoyl-CoA/anthranilate N-hydroxycinnamoyl/benzoyltransferase (HCBT, EC 2.3.1.144) from Dianthus caryophyllus. This modified yeast strain allowed us to produce tranilast and 26 different cinnamoyl anthranilate molecules within a few hours after exogenous supply of various combinations of cinnamic acids and anthranilate derivatives. Our data demonstrate the feasibility of rapidly producing a wide range of defined cinnamoyl anthranilates in yeast and underline a potential for the biological designed synthesis of naturally and non-naturally occurring molecules. JF - Applied Microbiology and Biotechnology AU - Eudes, Aymerick AU - Baidoo, Edward EK AU - Yang, Fan AU - Burd, Helcio AU - Hadi, Masood Z AU - Collins, FWilliam AU - Keasling, Jay D AU - Loque, Dominique AD - Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA, 94720, USA, dloque@lbl.gov PY - 2011 SP - 989 EP - 1000 PB - Springer-Verlag, Heidelberger Platz 3 Berlin 14197 Germany VL - 89 IS - 4 SN - 0175-7598, 0175-7598 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Biotechnology and Bioengineering Abstracts KW - Data processing KW - anthranilic acid KW - Antioxidants KW - Arabidopsis thaliana KW - phenolic compounds KW - Catalysts KW - Dianthus caryophyllus KW - amides KW - Drugs KW - Cinnamic acid KW - Saccharomyces cerevisiae KW - A 01380:Plant Protection, Fungicides & Seed Treatments KW - W 30930:Agricultural Applications KW - K 03420:Plant Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856788259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Microbiology+and+Biotechnology&rft.atitle=Production+of+tranilast+%5BN-%283%27%2C4%27-dimethoxycinnamoyl%29-anthra+nilic+acid%5D+and+its+analogs+in+yeast+Saccharomyces+cerevisiae&rft.au=Eudes%2C+Aymerick%3BBaidoo%2C+Edward+EK%3BYang%2C+Fan%3BBurd%2C+Helcio%3BHadi%2C+Masood+Z%3BCollins%2C+FWilliam%3BKeasling%2C+Jay+D%3BLoque%2C+Dominique&rft.aulast=Eudes&rft.aufirst=Aymerick&rft.date=2011-02-01&rft.volume=89&rft.issue=4&rft.spage=989&rft.isbn=&rft.btitle=&rft.title=Applied+Microbiology+and+Biotechnology&rft.issn=01757598&rft_id=info:doi/10.1007%2Fs00253-010-2939-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2016-01-06 N1 - SubjectsTermNotLitGenreText - Antioxidants; anthranilic acid; Data processing; phenolic compounds; Catalysts; Drugs; amides; Cinnamic acid; Arabidopsis thaliana; Dianthus caryophyllus; Saccharomyces cerevisiae DO - http://dx.doi.org/10.1007/s00253-010-2939-y ER - TY - JOUR T1 - Examination of core samples from the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Effects of retrieval and preservation AN - 856786818; 14208875 AB - Collecting and preserving undamaged core samples containing gas hydrates from depth is difficult because of the pressure and temperature changes encountered upon retrieval. Hydrate-bearing core samples were collected at the BPXA-DOE-USGS Mount Elbert Gas Hydrate Stratigraphic Test Well in February 2007. Coring was performed while using a custom oil-based drilling mud, and the cores were retrieved by a wireline. The samples were characterized and subsampled at the surface under ambient winter arctic conditions. Samples thought to be hydrate bearing were preserved either by immersion in liquid nitrogen (LN), or by storage under methane pressure at ambient arctic conditions, and later depressurized and immersed in LN. Eleven core samples from hydrate-bearing zones were scanned using x-ray computed tomography to examine core structure and homogeneity. Features observed include radial fractures, spalling-type fractures, and reduced density near the periphery. These features were induced during sample collection, handling, and preservation. Isotopic analysis of the methane from hydrate in an initially LN-preserved core and a pressure-preserved core indicate that secondary hydrate formation occurred throughout the pressurized core, whereas none occurred in the LN-preserved core, however no hydrate was found near the periphery of the LN-preserved core. To replicate some aspects of the preservation methods, natural and laboratory-made saturated porous media samples were frozen in a variety of ways, with radial fractures observed in some LN-frozen sands, and needle-like ice crystals forming in slowly frozen clay-rich sediments. Suggestions for hydrate-bearing core preservation are presented. JF - Marine and Petroleum Geology AU - Kneafsey, Timothy J AU - Lu, Hailong AU - Winters, William AU - Boswell, Ray AU - Hunter, Robert AU - Collett, Timothy S AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley CA 94720, USA Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 381 EP - 393 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 28 IS - 2 SN - 0264-8172, 0264-8172 KW - Oceanic Abstracts; Environment Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Gas hydrate KW - Core handling KW - Core disturbance KW - Dissociation KW - Thermal processes KW - hydrates KW - Marine KW - Ice KW - Methane KW - USA, Alaska, North Slope KW - gas hydrates KW - Coring KW - Handling KW - Fractures KW - Stratigraphy KW - Polar environments KW - PN, Arctic KW - Petroleum geology KW - mud KW - computed tomography KW - Cores KW - Gas hydrates KW - Hydrates KW - Nitrogen KW - O 3010:Geology and Geophysics KW - Q2 09405:Oil and gas KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856786818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Examination+of+core+samples+from+the+Mount+Elbert+Gas+Hydrate+Stratigraphic+Test+Well%2C+Alaska+North+Slope%3A+Effects+of+retrieval+and+preservation&rft.au=Kneafsey%2C+Timothy+J%3BLu%2C+Hailong%3BWinters%2C+William%3BBoswell%2C+Ray%3BHunter%2C+Robert%3BCollett%2C+Timothy+S&rft.aulast=Kneafsey&rft.aufirst=Timothy&rft.date=2011-02-01&rft.volume=28&rft.issue=2&rft.spage=381&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2009.10.009 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Petroleum geology; Methane; Cores; Coring; Gas hydrates; Handling; Stratigraphy; Fractures; Hydrates; hydrates; Ice; mud; computed tomography; gas hydrates; Polar environments; Nitrogen; PN, Arctic; USA, Alaska, North Slope; Marine DO - http://dx.doi.org/10.1016/j.marpetgeo.2009.10.009 ER - TY - JOUR T1 - Towards improved characterization of high-risk releases using heterogeneous indoor sensor systems AN - 831192893; 13888759 AB - The sudden release of toxic contaminants that reach indoor spaces can be hazardous to building occupants. For an acutely toxic contaminant, the speed of the emergency response strongly influences the consequences to occupants. The design of a real-time sensor system is made challenging both by the urgency and complex nature of the event, and by the imperfect sensors and models available to describe it. In this research, we use Bayesian modeling to combine information from multiple types of sensors to improve the characterization of a release. We discuss conceptual and algorithmic considerations for selecting and fusing information from disparate sensors. To explore system performance, we use both real tracer gas data from experiments in a three-story building, along with synthetic data, including information from door-position sensors. The added information from door-position sensors is found to be useful for many scenarios, but not always. We discuss the physical conditions and design factors that affect these results, such as the influence of the door positions on contaminant transport. We highlight potential benefits of multisensor data fusion, challenges in realizing those benefits, and opportunities for further improvement. JF - Building and Environment AU - Sreedharan, Priya AU - Sohn, Michael D AU - Nazaroff, William W AU - Gadgil, Ashok J AD - Department of Mechanical Engineering, University of California, Berkeley, CA 94720-1740, USA, MDSohn@lbl.gov Y1 - 2011/02// PY - 2011 DA - Feb 2011 SP - 438 EP - 447 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 46 IS - 2 SN - 0360-1323, 0360-1323 KW - Environment Abstracts; Pollution Abstracts KW - Bayesian analysis KW - Contaminant detection KW - Environmental systems KW - Parameter estimation KW - Sensor fusion KW - Tracers KW - acute toxicity KW - Sensors KW - Emergency preparedness KW - P 1000:MARINE POLLUTION KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/831192893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Building+and+Environment&rft.atitle=Towards+improved+characterization+of+high-risk+releases+using+heterogeneous+indoor+sensor+systems&rft.au=Sreedharan%2C+Priya%3BSohn%2C+Michael+D%3BNazaroff%2C+William+W%3BGadgil%2C+Ashok+J&rft.aulast=Sreedharan&rft.aufirst=Priya&rft.date=2011-02-01&rft.volume=46&rft.issue=2&rft.spage=438&rft.isbn=&rft.btitle=&rft.title=Building+and+Environment&rft.issn=03601323&rft_id=info:doi/10.1016%2Fj.buildenv.2010.08.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - acute toxicity; Tracers; Sensors; Emergency preparedness DO - http://dx.doi.org/10.1016/j.buildenv.2010.08.006 ER - TY - JOUR T1 - Metagenomic Discovery of Biomass-Degrading Genes and Genomes from Cow Rumen AN - 904464777; 14300653 AB - The paucity of enzymes that efficiently deconstruct plant polysaccharides represents a major bottleneck for industrial-scale conversion of cellulosic biomass into biofuels. Cow rumen microbes specialize in degradation of cellulosic plant material, but most members of this complex community resist cultivation. To characterize biomass-degrading genes and genomes, we sequenced and analyzed 268 gigabases of metagenomic DNA from microbes adherent to plant fiber incubated in cow rumen. From these data, we identified 27,755 putative carbohydrate-active genes and expressed 90 candidate proteins, of which 57% were enzymatically active against cellulosic substrates. We also assembled 15 uncultured microbial genomes, which were validated by complementary methods including single-cell genome sequencing. These data sets provide a substantially expanded catalog of genes and genomes participating in the deconstruction of cellulosic biomass. JF - Science (Washington) AU - Hess, Matthias AU - Sczyrba, Alexander AU - Egan, Rob AU - Kim, Tae-Wan AU - Chokhawala, Harshal AU - Schroth, Gary AU - Luo, Shujun AU - Clark, Douglas S AU - Chen, Feng AU - Zhang, Tao AU - Mackie, Roderick I AU - Pennacchio, Len A AU - Tringe, Susannah G AU - Visel, Axel AU - Woyke, Tanja AU - Wang, Zhong AU - Rubin, Edward M AD - Department of Energy, Joint Genome Institute, Walnut Creek, CA 94598, USA Y1 - 2011/01/28/ PY - 2011 DA - 2011 Jan 28 SP - 463 EP - 467 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA VL - 331 IS - 6016 SN - 0036-8075, 0036-8075 KW - Genetics Abstracts; Sustainability Science Abstracts KW - Genomes KW - Fuel technology KW - Data processing KW - Catalogs KW - Rumen KW - Nucleotide sequence KW - biofuels KW - Enzymes KW - Biomass KW - Polysaccharides KW - Fibers KW - Plant communities KW - DNA KW - Proteins KW - cultivation KW - Biofuels KW - G 07800:Plants and Algae KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/904464777?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Metagenomic+Discovery+of+Biomass-Degrading+Genes+and+Genomes+from+Cow+Rumen&rft.au=Hess%2C+Matthias%3BSczyrba%2C+Alexander%3BEgan%2C+Rob%3BKim%2C+Tae-Wan%3BChokhawala%2C+Harshal%3BSchroth%2C+Gary%3BLuo%2C+Shujun%3BClark%2C+Douglas+S%3BChen%2C+Feng%3BZhang%2C+Tao%3BMackie%2C+Roderick+I%3BPennacchio%2C+Len+A%3BTringe%2C+Susannah+G%3BVisel%2C+Axel%3BWoyke%2C+Tanja%3BWang%2C+Zhong%3BRubin%2C+Edward+M&rft.aulast=Hess&rft.aufirst=Matthias&rft.date=2011-01-28&rft.volume=331&rft.issue=6016&rft.spage=463&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Genomes; Fibers; Catalogs; Data processing; Rumen; Nucleotide sequence; DNA; Plant communities; Enzymes; Polysaccharides; Biomass; Biofuels; Fuel technology; biofuels; Proteins; cultivation ER - TY - JOUR T1 - Probing the electromagnetic field of a 15-nanometre hotspot by single molecule imaging AN - 1753495968; 14262329 AB - When light illuminates a rough metallic surface, hotspots can appear, where the light is concentrated on the nanometre scale, producing an intense electromagnetic field. This phenomenon, called the surface enhancement effect, has a broad range of potential applications, such as the detection of weak chemical signals. Hotspots are believed to be associated with localized electromagnetic modes, caused by the randomness of the surface texture. Probing the electromagnetic field of the hotspots would offer much insight towards uncovering the mechanism generating the enhancement; however, it requires a spatial resolution of 1-2nm, which has been a long-standing challenge in optics. The resolution of an optical microscope is limited to about half the wavelength of the incident light, approximately 200-300nm. Although current state-of-the-art techniques, including near-field scanning optical microscopy, electron energy-loss spectroscopy, cathode luminescence imaging and two-photon photoemission imaging have subwavelength resolution, they either introduce a non-negligible amount of perturbation, complicating interpretation of the data, or operate only in a vacuum. As a result, after more than 30 years since the discovery of the surface enhancement effect, how the local field is distributed remains unknown. Here we present a technique that uses Brownian motion of single molecules to probe the local field. It enables two-dimensional imaging of the fluorescence enhancement profile of single hotspots on the surfaces of aluminium thin films and silver nanoparticle clusters, with accuracy down to 1.2nm. Strong fluorescence enhancements, up to 54 and 136 times respectively, are observed in those two systems. This strong enhancement indicates that the local field, which decays exponentially from the peak of a hotspot, dominates the fluorescence enhancement profile. JF - Nature AU - Cang, Hu AU - Labno, Anna AU - Lu, Changgui AU - Yin, Xiaobo AU - Liu, Ming AU - Gladden, Christopher AU - Liu, Yongmin AU - Zhang, Xiang AD - [1] Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA [2] NSF Nano Scale Science and Engineering Center (NSEC), 3112 Etcheverry Hall, University of California, Berkeley, California 94720, USA Y1 - 2011/01/20/ PY - 2011 DA - 2011 Jan 20 SP - 385 EP - 388 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 469 IS - 7330 SN - 0028-0836, 0028-0836 KW - Solid State and Superconductivity Abstracts (SO); Mechanical & Transportation Engineering Abstracts (MT); METADEX (MD); Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Electronics and Communications Abstracts (EA); Computer and Information Systems Abstracts (CI); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN); Aluminium Industry Abstracts (AI) KW - Scanning electron microscopy KW - Fluorescence KW - Surface layer KW - Imaging KW - Silver KW - Nanostructure KW - Electromagnetic fields KW - Texture KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1753495968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Probing+the+electromagnetic+field+of+a+15-nanometre+hotspot+by+single+molecule+imaging&rft.au=Cang%2C+Hu%3BLabno%2C+Anna%3BLu%2C+Changgui%3BYin%2C+Xiaobo%3BLiu%2C+Ming%3BGladden%2C+Christopher%3BLiu%2C+Yongmin%3BZhang%2C+Xiang&rft.aulast=Cang&rft.aufirst=Hu&rft.date=2011-01-20&rft.volume=469&rft.issue=7330&rft.spage=385&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature09698 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-01-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1038/nature09698 ER - TY - JOUR T1 - Temperature and wavelength dependent oxygen isotopic fractionation in the VUV photodissociation of CO; implications for the solar nebula AN - 959099918; 2012-035082 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chakraborty, Subrata AU - Davis, Ryan AU - Ahmed, Musahid AU - Jackson, Teresa L AU - Thiemens, M H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1559 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - isotope fractionation KW - oxygen KW - isotopes KW - stable isotopes KW - temperature KW - carbon dioxide KW - ozone KW - electromagnetic radiation KW - photodissociation KW - water KW - solar system KW - experimental studies KW - pressure KW - photochemistry KW - cosmochemistry KW - ultraviolet radiation KW - wavelength KW - solar nebula KW - carbon monoxide KW - vacuum ultraviolet radiation KW - photolysis KW - O-18 KW - O-17 KW - O-16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959099918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Temperature+and+wavelength+dependent+oxygen+isotopic+fractionation+in+the+VUV+photodissociation+of+CO%3B+implications+for+the+solar+nebula&rft.au=Chakraborty%2C+Subrata%3BDavis%2C+Ryan%3BAhmed%2C+Musahid%3BJackson%2C+Teresa+L%3BThiemens%2C+M+H%3BAnonymous&rft.aulast=Chakraborty&rft.aufirst=Subrata&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1559.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - SuppNotes - Accessed on Oct. 20, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon monoxide; cosmochemistry; electromagnetic radiation; experimental studies; isotope fractionation; isotopes; O-16; O-17; O-18; oxygen; ozone; photochemistry; photodissociation; photolysis; pressure; solar nebula; solar system; stable isotopes; temperature; ultraviolet radiation; vacuum ultraviolet radiation; water; wavelength ER - TY - JOUR T1 - Ti-XANES of solar and presolar hibonite AN - 959098830; 2012-034821 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Zega, T J AU - Nittler, L R AU - Stroud, Rhonda M AU - Alexander, C M O AU - Kilcoyne, A L D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper no. 1465 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - ordinary chondrites KW - stony meteorites KW - crystal structure KW - CV chondrites KW - Allende Meteorite KW - XANES spectra KW - meteorites KW - presolar grains KW - MET 00452 KW - WSG 95300 KW - Krymka Meteorite KW - Meteorite Hills Meteorites KW - oxides KW - spectra KW - chondrites KW - chemical composition KW - Eh KW - minor elements KW - LL chondrites KW - QUE 97008 KW - hibonite KW - carbonaceous chondrites KW - X-ray spectra KW - TEM data KW - ultrastructure KW - Antarctica KW - titanium KW - metals KW - Queen Alexandra Range Meteorites KW - Mount Wisting Meteorites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959098830?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Ti-XANES+of+solar+and+presolar+hibonite&rft.au=Zega%2C+T+J%3BNittler%2C+L+R%3BStroud%2C+Rhonda+M%3BAlexander%2C+C+M+O%3BKilcoyne%2C+A+L+D%3BAnonymous&rft.aulast=Zega&rft.aufirst=T&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1465.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Jan. 17, 2012 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Allende Meteorite; Antarctica; carbonaceous chondrites; chemical composition; chondrites; crystal structure; CV chondrites; Eh; hibonite; Krymka Meteorite; LL chondrites; MET 00452; metals; Meteorite Hills Meteorites; meteorites; minor elements; Mount Wisting Meteorites; ordinary chondrites; oxides; presolar grains; QUE 97008; Queen Alexandra Range Meteorites; spectra; stony meteorites; TEM data; titanium; ultrastructure; WSG 95300; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Refinement of phase Q carbon chemistry through comparison study of Q-gas rich and depleted fractions from the Allende Meteorite AN - 959091568; 2012-032973 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Yabuta, H AU - Amari, S AU - Matsuda, J AU - Hasegawa, T AU - Kilcoyne, A L D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 2837 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - stony meteorites KW - gaseous phase KW - carbonaceous chondrites KW - phase Q KW - CV chondrites KW - X-ray spectra KW - Allende Meteorite KW - XANES spectra KW - meteorites KW - graphene KW - carbon KW - spectra KW - organic carbon KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/959091568?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Refinement+of+phase+Q+carbon+chemistry+through+comparison+study+of+Q-gas+rich+and+depleted+fractions+from+the+Allende+Meteorite&rft.au=Yabuta%2C+H%3BAmari%2C+S%3BMatsuda%2C+J%3BHasegawa%2C+T%3BKilcoyne%2C+A+L+D%3BAnonymous&rft.aulast=Yabuta&rft.aufirst=H&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2837.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Nov. 22, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Allende Meteorite; carbon; carbonaceous chondrites; chondrites; CV chondrites; gaseous phase; graphene; meteorites; organic carbon; phase Q; spectra; stony meteorites; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Targeted proteomics for metabolic pathway optimization: Application to terpene production AN - 954652971; 14603601 AB - Successful metabolic engineering relies on methodologies that aid assembly and optimization of novel pathways in microbes. Many different factors may contribute to pathway performance, and problems due to mRNA abundance, protein abundance, or enzymatic activity may not be evident by monitoring product titers. To this end, synthetic biologists and metabolic engineers utilize a variety of analytical methods to identify the parts of the pathway that limit production. In this study, targeted proteomics, via selected-reaction monitoring (SRM) mass spectrometry, was used to measure protein levels in Escherichia coli strains engineered to produce the sesquiterpene, amorpha-4,11-diene. From this analysis, two mevalonate pathway proteins, mevalonate kinase (MK) and phosphomevalonate kinase (PMK) from Saccharomyces cerevisiae, were identified as potential bottlenecks. Codon-optimization of the genes encoding MK and PMK and expression from a stronger promoter led to significantly improved MK and PMK protein levels and over three-fold improved final amorpha-4,11-diene titer (>500 mg/L). JF - Metabolic Engineering AU - Redding-Johanson, Alyssa M AU - Batth, Tanveer S AU - Chan, Rossana AU - Krupa, Rachel AU - Szmidt, Heather L AU - Adams, Paul D AU - Keasling, Jay D AU - Lee, Taek Soon AU - Mukhopadhyay, Aindrila AU - Petzold, Christopher J AD - Lawrence Berkeley National Laboratory, Physical Biosciences Division, Joint BioEnergy Institute, 5885 Hollis Street, 4th Floor, Emeryville, CA 94608, USA, cjpetzold@lbl.gov Y1 - 2011 PY - 2011 DA - 2011 SP - 194 EP - 203 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 13 IS - 2 SN - 1096-7176, 1096-7176 KW - Biotechnology and Bioengineering Abstracts KW - Terpenes KW - mevalonic acid KW - metabolic engineering KW - Mass spectroscopy KW - sesquiterpenes KW - Saccharomyces cerevisiae KW - mRNA KW - Promoters KW - Escherichia coli KW - Mevalonate kinase KW - Metabolic pathways KW - proteomics KW - Enzymatic activity KW - Phosphomevalonate kinase KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/954652971?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Metabolic+Engineering&rft.atitle=Targeted+proteomics+for+metabolic+pathway+optimization%3A+Application+to+terpene+production&rft.au=Redding-Johanson%2C+Alyssa+M%3BBatth%2C+Tanveer+S%3BChan%2C+Rossana%3BKrupa%2C+Rachel%3BSzmidt%2C+Heather+L%3BAdams%2C+Paul+D%3BKeasling%2C+Jay+D%3BLee%2C+Taek+Soon%3BMukhopadhyay%2C+Aindrila%3BPetzold%2C+Christopher+J&rft.aulast=Redding-Johanson&rft.aufirst=Alyssa&rft.date=2011-01-01&rft.volume=13&rft.issue=2&rft.spage=194&rft.isbn=&rft.btitle=&rft.title=Metabolic+Engineering&rft.issn=10967176&rft_id=info:doi/10.1016%2Fj.ymben.2010.12.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2012-03-30 N1 - SubjectsTermNotLitGenreText - mevalonic acid; Terpenes; Promoters; Metabolic pathways; Mevalonate kinase; metabolic engineering; Enzymatic activity; proteomics; Phosphomevalonate kinase; sesquiterpenes; Mass spectroscopy; mRNA; Escherichia coli; Saccharomyces cerevisiae DO - http://dx.doi.org/10.1016/j.ymben.2010.12.005 ER - TY - JOUR T1 - Correlated microanalysis of cometary organic grains returned by Stardust AN - 925707428; 2012-027586 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - De Gregorio, Bradley T AU - Stroud, R M AU - Nittler, L R AU - Cody, G D AU - Kilcoyne, A L D AU - Wirick, S AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - 2603 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - alteration KW - ion probe data KW - isotopes KW - aliphatic hydrocarbons KW - mass spectra KW - scanning transmission X-ray microscopy KW - stable isotopes KW - nitrogen KW - XANES spectra KW - Wild 2 Comet KW - spectra KW - deuterium KW - carbonaceous composition KW - Stardust Mission KW - N-15 KW - X-ray spectra KW - TEM data KW - organic compounds KW - insoluble organic matter KW - comets KW - hydrogen KW - hydrocarbons KW - heating KW - aerogel KW - NanoSIMS KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Correlated+microanalysis+of+cometary+organic+grains+returned+by+Stardust&rft.au=De+Gregorio%2C+Bradley+T%3BStroud%2C+R+M%3BNittler%2C+L+R%3BCody%2C+G+D%3BKilcoyne%2C+A+L+D%3BWirick%2C+S%3BAnonymous&rft.aulast=De+Gregorio&rft.aufirst=Bradley&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2640.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 17, 2011 N1 - Last updated - 2012-07-19 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerogel; aliphatic hydrocarbons; alteration; aromatic hydrocarbons; carbonaceous composition; comets; deuterium; heating; hydrocarbons; hydrogen; insoluble organic matter; ion probe data; isotopes; mass spectra; N-15; NanoSIMS; nitrogen; organic compounds; scanning transmission X-ray microscopy; spectra; stable isotopes; Stardust Mission; TEM data; Wild 2 Comet; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Drilling constraints on lithospheric accretion and evolution at Atlantis Massif, Mid-Atlantic Ridge 30 degrees N AN - 921717944; 2012-023645 AB - Expeditions 304 and 305 of the Integrated Ocean Drilling Program cored and logged a 1.4 km section of the domal core of Atlantis Massif. Postdrilling research results summarized here constrain the structure and lithology of the Central Dome of this oceanic core complex. The dominantly gabbroic sequence recovered contrasts with predrilling predictions; application of the ground truth in subsequent geophysical processing has produced self-consistent models for the Central Dome. The presence of many thin interfingered petrologic units indicates that the intrusions forming the domal core were emplaced over a minimum of 100-220 kyr, and not as a single magma pulse. Isotopic and mineralogical alteration is intense in the upper 100 m but decreases in intensity with depth. Below 800 m, alteration is restricted to narrow zones surrounding faults, veins, igneous contacts, and to an interval of locally intense serpentinization in olivine-rich troctolite. Hydration of the lithosphere occurred over the complete range of temperature conditions from granulite to zeolite facies, but was predominantly in the amphibolite and greenschist range. Deformation of the sequence was remarkably localized, despite paleomagnetic indications that the dome has undergone at least 45 degrees rotation, presumably during unroofing via detachment faulting. Both the deformation pattern and the lithology contrast with what is known from seafloor studies on the adjacent Southern Ridge of the massif. There, the detachment capping the domal core deformed a 100 m thick zone and serpentinized peridotite comprises approximately 70% of recovered samples. We develop a working model of the evolution of Atlantis Massif over the past 2 Myr, outlining several stages that could explain the observed similarities and differences between the Central Dome and the Southern Ridge. JF - Journal of Geophysical Research AU - Blackman, D K AU - Ildefonse, B AU - John, B E AU - Ohara, Y AU - Miller, D J AU - Abe, N AU - Abratis, M AU - Andal, E S AU - Andreani, M AU - Awaji, S AU - Beard, J S AU - Brunelli, D AU - Charney, A B AU - Christie, D M AU - Collins, J AU - Delacour, A G AU - Delius, H AU - Drouin, M AU - Einaudi, F AU - Escartin, J AU - Frost, B R AU - Frueh-Green, G AU - Fryer, P B AU - Gee, J S AU - Godard, M AU - Grimes, C B AU - Halfpenny, A AU - Hansen, H E AU - Harris, A C AU - Tamura, A AU - Hayman, N W AU - Hellebrand, E AU - Hirose, T AU - Hirth, J G AU - Ishimaru, S AU - Johnson, K T M AU - Karner, G D AU - Linek, M AU - MacLeod, C J AU - Maeda, J AU - Mason, O U AU - McCaig, A M AU - Michibayashi, K AU - Morris, A AU - Nakagawa, T AU - Nozaka, T AU - Rosner, M AU - Searle, R C AU - Suhr, G AU - Tominaga, M AU - von der Handt, A AU - Yamasaki, T AU - Zhao, X Y1 - 2011 PY - 2011 DA - 2011 EP - Citation B07103 PB - American Geophysical Union, Washington, DC VL - 116 IS - B7 SN - 0148-0227, 0148-0227 KW - oceanic crust KW - geophysical surveys KW - igneous rocks KW - oceanic lithosphere KW - IODP Site U1309 KW - Expedition 304 KW - Expedition 305 KW - refraction methods KW - cores KW - Mid-Atlantic Ridge KW - plutonic rocks KW - Expeditions 304/305 KW - tectonics KW - ocean floors KW - accretion KW - lithosphere KW - magmatism KW - geophysical methods KW - Integrated Ocean Drilling Program KW - Atlantis Massif KW - seismic methods KW - IODP Site U1310 KW - IODP Site U1311 KW - surveys KW - gabbros KW - North Atlantic KW - crust KW - Atlantic Ocean KW - mid-ocean ridges KW - 18:Solid-earth geophysics KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921717944?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Drilling+constraints+on+lithospheric+accretion+and+evolution+at+Atlantis+Massif%2C+Mid-Atlantic+Ridge+30+degrees+N&rft.au=Blackman%2C+D+K%3BIldefonse%2C+B%3BJohn%2C+B+E%3BOhara%2C+Y%3BMiller%2C+D+J%3BAbe%2C+N%3BAbratis%2C+M%3BAndal%2C+E+S%3BAndreani%2C+M%3BAwaji%2C+S%3BBeard%2C+J+S%3BBrunelli%2C+D%3BCharney%2C+A+B%3BChristie%2C+D+M%3BCollins%2C+J%3BDelacour%2C+A+G%3BDelius%2C+H%3BDrouin%2C+M%3BEinaudi%2C+F%3BEscartin%2C+J%3BFrost%2C+B+R%3BFrueh-Green%2C+G%3BFryer%2C+P+B%3BGee%2C+J+S%3BGodard%2C+M%3BGrimes%2C+C+B%3BHalfpenny%2C+A%3BHansen%2C+H+E%3BHarris%2C+A+C%3BTamura%2C+A%3BHayman%2C+N+W%3BHellebrand%2C+E%3BHirose%2C+T%3BHirth%2C+J+G%3BIshimaru%2C+S%3BJohnson%2C+K+T+M%3BKarner%2C+G+D%3BLinek%2C+M%3BMacLeod%2C+C+J%3BMaeda%2C+J%3BMason%2C+O+U%3BMcCaig%2C+A+M%3BMichibayashi%2C+K%3BMorris%2C+A%3BNakagawa%2C+T%3BNozaka%2C+T%3BRosner%2C+M%3BSearle%2C+R+C%3BSuhr%2C+G%3BTominaga%2C+M%3Bvon+der+Handt%2C+A%3BYamasaki%2C+T%3BZhao%2C+X&rft.aulast=Blackman&rft.aufirst=D&rft.date=2011-01-01&rft.volume=116&rft.issue=B7&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JB007931 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 75 N1 - PubXState - DC N1 - Document feature - illus. incl. sects., 2 tables, geol. sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - accretion; Atlantic Ocean; Atlantis Massif; cores; crust; Expedition 304; Expedition 305; Expeditions 304/305; gabbros; geophysical methods; geophysical surveys; igneous rocks; Integrated Ocean Drilling Program; IODP Site U1309; IODP Site U1310; IODP Site U1311; lithosphere; magmatism; Mid-Atlantic Ridge; mid-ocean ridges; North Atlantic; ocean floors; oceanic crust; oceanic lithosphere; plutonic rocks; refraction methods; seismic methods; surveys; tectonics DO - http://dx.doi.org/10.1029/2010JB007931 ER - TY - JOUR T1 - Methane hydrate induced permeability modification for multiphase flow in unsaturated porous media AN - 921716125; 2012-023820 AB - An experimental study was performed using X-ray computed tomography (CT) scanning to capture three-dimensional (3-D) methane hydrate distributions and potential discrete flow pathways in a sand pack sample. A numerical study was also performed to develop and analyze empirical relations that describe the impacts of hydrate accumulation habits within pore space (e.g., pore filling or grain cementing) on multiphase fluid migration. In the experimental study, water was injected into a hydrate-bearing sand sample that was monitored using an X-ray CT scanner. The CT images were converted into numerical grid elements, providing intrinsic sample data including porosity and phase saturations. The impacts of hydrate accumulation were examined by adapting empirical relations into the flow simulations as additional relations governing the evolution of absolute permeability of hydrate bearing sediment with hydrate deposition. The impacts of pore space hydrate accumulation habits on fluid migration were examined by comparing numerical predictions with experimentally measured water saturation distributions and breakthrough curves. A model case with 3-D heterogeneous initial conditions (hydrate saturation, porosity, and water saturation) and pore body-preferred hydrate accumulations best captured water migration behavior through the hydrate-bearing sample observed in the experiment. In the best matching model, absolute permeability in the hydrate bearing sample does not decrease significantly with increasing hydrate saturation until hydrate saturation reaches about 40%, after which it drops rapidly, and complete blockage of flow through the sample can occur as hydrate accumulations approach 70%. The result highlights the importance of permeability modification due to hydrate accumulation habits when predicting multiphase flow through high-saturation, reservoir quality hydrate-bearing sediments. JF - Journal of Geophysical Research AU - Seol, Yongkoo AU - Kneafsey, Timothy J Y1 - 2011 PY - 2011 DA - 2011 EP - Citation B08102 PB - American Geophysical Union, Washington, DC VL - 116 IS - B8 SN - 0148-0227, 0148-0227 KW - experimental studies KW - methane KW - gas hydrates KW - three-dimensional models KW - natural gas KW - aliphatic hydrocarbons KW - porous materials KW - petroleum KW - alkanes KW - fluid dynamics KW - porosity KW - laboratory studies KW - organic compounds KW - X-ray data KW - saturation KW - hydrocarbons KW - computed tomography data KW - permeability KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921716125?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Methane+hydrate+induced+permeability+modification+for+multiphase+flow+in+unsaturated+porous+media&rft.au=Seol%2C+Yongkoo%3BKneafsey%2C+Timothy+J&rft.aulast=Seol&rft.aufirst=Yongkoo&rft.date=2011-01-01&rft.volume=116&rft.issue=B8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JB008040 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 35 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; computed tomography data; experimental studies; fluid dynamics; gas hydrates; hydrocarbons; laboratory studies; methane; natural gas; organic compounds; permeability; petroleum; porosity; porous materials; saturation; three-dimensional models; X-ray data DO - http://dx.doi.org/10.1029/2010JB008040 ER - TY - JOUR T1 - Water and Energy Interactions AN - 918054196; 16151527 AB - Human habitations require energy and water, which are increasingly interdependent. Energy systems have changed from using water for mechanical energy to building dams to provide irrigation water for agriculture and hydroelectricity. Large volumes of water are required to cool thermal electricity-generating stations--whether coal, natural gas, nuclear, or solar powered. Changes in cooling technology are reducing water withdrawals while increasing water consumption. Water produced from fossil fuel production represents environmental challenges and supply opportunities. Some renewable energy sources, such as wind turbines and photovoltaics, have far lower water requirements. Increasing development of biofuels creates a direct connection between water and energy systems. Energy, mostly for pumps, is necessary for supplying potable water and treating wastewater. Pumping from deeper underground as well as removing more contaminants (e.g., medicines, agricultural chemicals) and salt requires more energy. Water and wastewater treatment can dominate electricity demand in municipalities. Water reuse requires energy for treatment and pumping. Life cycle assessments and integrated resource planning strive to account for the total impacts. JF - Annual Review of Environment and Resources AU - McMahon, JE AU - Price, S K AD - Energy Analysis Department, Lawrence Berkeley National Laboratory, Berkeley, California 94720-8136, USA, jemcmahon@lbl.gov Y1 - 2011 PY - 2011 DA - 2011 SP - 163 EP - 191 VL - 36 SN - 1543-5938, 1543-5938 KW - Ecology Abstracts; Environment Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Aqualine Abstracts; Water Resources Abstracts KW - Irrigation water KW - Resource management KW - Potable Water KW - Water requirements KW - Fuel KW - Wind KW - Hydroelectric Power KW - Fossil fuels KW - Irrigation KW - Cooling KW - Salts KW - Turbines KW - Hydroelectric power plants KW - Contaminants KW - Environment management KW - Biofuels KW - Technology KW - Agriculture KW - Life cycle KW - Electricity KW - Coal KW - Wastewater treatment KW - Assessments KW - Dams KW - Pumping KW - Photovoltaics KW - water use KW - Natural gas KW - Renewable energy KW - Reviews KW - Energy KW - Drinking water KW - Waste water KW - Wastewater Treatment KW - ENA 03:Energy KW - D 04070:Pollution KW - SW 1030:Use of water of impaired quality KW - AQ 00006:Sewage KW - Q2 09405:Oil and gas UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918054196?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+Review+of+Environment+and+Resources&rft.atitle=Water+and+Energy+Interactions&rft.au=McMahon%2C+JE%3BPrice%2C+S+K&rft.aulast=McMahon&rft.aufirst=JE&rft.date=2011-01-01&rft.volume=36&rft.issue=&rft.spage=163&rft.isbn=&rft.btitle=&rft.title=Annual+Review+of+Environment+and+Resources&rft.issn=15435938&rft_id=info:doi/10.1146%2Fannurev-environ-061110-103827 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Irrigation water; Turbines; Resource management; Fossil fuels; Potable Water; Coal; Pumping; Environment management; Natural gas; Agriculture; Irrigation; Water requirements; Life cycle; Electricity; Wastewater treatment; Salts; Dams; Energy; Reviews; Waste water; Contaminants; Drinking water; Biofuels; Wind; water use; Photovoltaics; Renewable energy; Hydroelectric power plants; Technology; Hydroelectric Power; Assessments; Cooling; Wastewater Treatment; Fuel DO - http://dx.doi.org/10.1146/annurev-environ-061110-103827 ER - TY - JOUR T1 - Anomalous sound velocities in polycrystalline MgO under non-hydrostatic compression AN - 916839318; 2012-012229 AB - Brillouin scattering from polycrystalline MgO (periclase) non-hydrostatically compressed to, and decompressed from, 60 GPa at room temperature documents shear- and compressional-wave velocities approximately 20% lower than values measured under hydrostatic compression. Calculations reveal that wave velocities can be lowered due to the elastic effects of non-hydrostatic stresses, but by only a few percent. Neither these elastic effects nor preferred orientation can account for the reduction in the sound velocity. JF - Geophysical Research Letters AU - Gleason, A E AU - Marquardt, H AU - Chen, B AU - Speziale, S AU - Wu, J AU - Jeanloz, R Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L03304 PB - American Geophysical Union, Washington, DC VL - 38 IS - 3 SN - 0094-8276, 0094-8276 KW - periclase KW - Brillouin spectra KW - elastic waves KW - elastic constants KW - temperature KW - acoustical methods KW - grain boundaries KW - magnesium oxides KW - velocity KW - oxides KW - propagation KW - spectra KW - compression KW - P-T conditions KW - pressure KW - loading KW - stress KW - geophysical methods KW - high pressure KW - physical properties KW - Raman spectra KW - polycrystalline materials KW - crystallization KW - seismic waves KW - shear modulus KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916839318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Anomalous+sound+velocities+in+polycrystalline+MgO+under+non-hydrostatic+compression&rft.au=Gleason%2C+A+E%3BMarquardt%2C+H%3BChen%2C+B%3BSpeziale%2C+S%3BWu%2C+J%3BJeanloz%2C+R&rft.aulast=Gleason&rft.aufirst=A&rft.date=2011-01-01&rft.volume=38&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2010GL045860 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 23 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - acoustical methods; Brillouin spectra; compression; crystallization; elastic constants; elastic waves; geophysical methods; grain boundaries; high pressure; loading; magnesium oxides; oxides; P-T conditions; periclase; physical properties; polycrystalline materials; pressure; propagation; Raman spectra; seismic waves; shear modulus; spectra; stress; temperature; velocity DO - http://dx.doi.org/10.1029/2010GL045860 ER - TY - JOUR T1 - Anomalous isotope effect in VUV photodissociation of hydrogen sulfide; implications for chondrite and chondrule isotopic data AN - 911678902; 2012-004521 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chakraborty, Subrata AU - Davis, Ryan AU - Jackson, Teresa L AU - Ahmed, Musahid AU - Thiemens, M H AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Abstract 1569 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - sulfur dioxide KW - isotope fractionation KW - vacuum ultraviolet KW - experimental studies KW - dissociation KW - stony meteorites KW - gaseous phase KW - isotopes KW - photochemistry KW - S-33 KW - hydrogen sulfide KW - cosmochemistry KW - anomalies KW - stable isotopes KW - ultraviolet radiation KW - solar nebula KW - meteorites KW - absorption KW - electromagnetic radiation KW - photolysis KW - chondrules KW - sulfur KW - chondrites KW - 04:Extraterrestrial geology KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911678902?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Anomalous+isotope+effect+in+VUV+photodissociation+of+hydrogen+sulfide%3B+implications+for+chondrite+and+chondrule+isotopic+data&rft.au=Chakraborty%2C+Subrata%3BDavis%2C+Ryan%3BJackson%2C+Teresa+L%3BAhmed%2C+Musahid%3BThiemens%2C+M+H%3BAnonymous&rft.aulast=Chakraborty&rft.aufirst=Subrata&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/1569.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 8, 2011 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - absorption; anomalies; chondrites; chondrules; cosmochemistry; dissociation; electromagnetic radiation; experimental studies; gaseous phase; hydrogen sulfide; isotope fractionation; isotopes; meteorites; photochemistry; photolysis; S-33; solar nebula; stable isotopes; stony meteorites; sulfur; sulfur dioxide; ultraviolet radiation; vacuum ultraviolet ER - TY - JOUR T1 - Varying virulence: epigenetic control of expression noise and disease processes AN - 899140387; 15749959 AB - Gene expression noise is a significant source of phenotypic heterogeneity in otherwise identical populations of cells. Phenotypic heterogeneity can cause reversible drug resistance in diseased cells, and thus a better understanding of its origins might improve treatment strategies. In eukaryotes, data strongly suggest that intrinsic noise arises from transcriptional bursts caused by slow, random transitions between inactive and active gene states that are mediated by chromatin remodeling. In this review, we consider how chromatin modifications might modulate gene expression noise and lead to phenotypic diversity in diseases as varied as viral infection and cancer. Additionally, we argue that this fundamental information can be applied to develop innovative therapies that counteract 'pathogenic noise' and sensitize all diseased cells to therapeutic intervention. JF - Trends in Biotechnology AU - Miller-Jensen, Kathryn AU - Dey, Siddharth S AU - Schaffer, David V AU - Arkin, Adam P PY - 2011 SP - 517 EP - 525 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 29 IS - 10 SN - 0167-7799, 0167-7799 KW - Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids; Biotechnology and Bioengineering Abstracts KW - Gene expression KW - Virulence KW - Data processing KW - Chromatin remodeling KW - epigenetics KW - Reviews KW - Drug resistance KW - Transcription KW - Therapeutic applications KW - Infection KW - Cancer KW - N 14820:DNA Metabolism & Structure KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/899140387?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Trends+in+Biotechnology&rft.atitle=Varying+virulence%3A+epigenetic+control+of+expression+noise+and+disease+processes&rft.au=Miller-Jensen%2C+Kathryn%3BDey%2C+Siddharth+S%3BSchaffer%2C+David+V%3BArkin%2C+Adam+P&rft.aulast=Miller-Jensen&rft.aufirst=Kathryn&rft.date=2011-01-01&rft.volume=29&rft.issue=10&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=Trends+in+Biotechnology&rft.issn=01677799&rft_id=info:doi/10.1016%2Fj.tibtech.2011.05.004 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2016-01-06 N1 - SubjectsTermNotLitGenreText - Virulence; Gene expression; Data processing; Chromatin remodeling; epigenetics; Drug resistance; Reviews; Therapeutic applications; Transcription; Infection; Cancer DO - http://dx.doi.org/10.1016/j.tibtech.2011.05.004 ER - TY - JOUR T1 - Comparative proteomic profiles of the marine cyanobacterium Trichodesmium erythraeum IMS101 under different nitrogen regimes AN - 883016350; 15266668 AB - Trichodesmium is a marine filamentous diazotrophic cyanobacterium and an important contributor of "new" nitrogen in the oligotrophic surface waters of the tropical and sub-tropical oceans. It is unique in that it exclusively fixes N2 at daytime, although it belongs to the non-heterocystous filamentous segment of the cyanobacterial radiation. Here we present the first quantitative proteomic analysis of Trichodesmium erythraeum IMS101 when grown under different nitrogen regimes using 2-DE/MALDI-TOF-MS. Addition of combined nitrogen () prevented development of the morphological characteristics of the N2-fixing cell type (diazocytes), inhibited expression of the nitrogenase enzyme subunits and consequently N2 fixation activity. The diazotrophic regime (N2 versus cultures) elicited the differential expression of more than 100 proteins, which represented 13.5% of the separated proteins. Besides proteins directly related to N2 fixation, proteins involved in the synthesis of reducing equivalents and the generation of a micro-oxic environment were strongly up-regulated, as was in particular Dps, a protein related to iron acquisition and potentially other vital cellular processes. In contrast, proteins involved in the S-adenosylmethionine (SAM) cycle, synthesis of amino acids and production of carbon skeletons for storage and synthesis of amino acids were suppressed. The data are discussed in the context of Trichodesmium's unusual N2-fixing physiology. JF - Proteomics AU - Sandh, Gustaf AU - Ran, Liang AU - Xu, Linghua AU - Sundqvist, Gustav AU - Bulone, Vincent AU - Bergman, Birgitta AD - Department of Botany, Stockholm University, Stockholm, Sweden, gsandh@lbl.gov Y1 - 2011 PY - 2011 DA - 2011 SP - 406 EP - 419 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 United States VL - 11 IS - 3 SN - 1615-9861, 1615-9861 KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Biotechnology and Bioengineering Abstracts KW - Nitrogenase KW - Data processing KW - Amino acids KW - Surface water KW - Enzymes KW - Cell culture KW - Cyanobacteria KW - Daytime KW - Carbon KW - Radiation KW - Oceans KW - proteomics KW - Iron KW - S-Adenosylmethionine KW - Nitrogen KW - K 03340:Effects of Physical & Chemical Factors KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883016350?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proteomics&rft.atitle=Comparative+proteomic+profiles+of+the+marine+cyanobacterium+Trichodesmium+erythraeum+IMS101+under+different+nitrogen+regimes&rft.au=Sandh%2C+Gustaf%3BRan%2C+Liang%3BXu%2C+Linghua%3BSundqvist%2C+Gustav%3BBulone%2C+Vincent%3BBergman%2C+Birgitta&rft.aulast=Sandh&rft.aufirst=Gustaf&rft.date=2011-01-01&rft.volume=11&rft.issue=3&rft.spage=406&rft.isbn=&rft.btitle=&rft.title=Proteomics&rft.issn=16159861&rft_id=info:doi/10.1002%2Fpmic.201000382 L2 - http://onlinelibrary.wiley.com/doi/10.1002/pmic.201000382/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2013-11-04 N1 - SubjectsTermNotLitGenreText - Nitrogenase; Amino acids; Data processing; Surface water; Enzymes; Cell culture; Carbon; Daytime; Radiation; Oceans; proteomics; S-Adenosylmethionine; Iron; Nitrogen; Cyanobacteria DO - http://dx.doi.org/10.1002/pmic.201000382 ER - TY - JOUR T1 - Long term infiltration and tracer transport in fractured rocks; field observations and model analyses AN - 861985182; 2011-034657 AB - This paper presents modeling analyses of long term infiltration and tracer tests in fractured tuffs at Yucca Mountain, NV, USA. The experiments were conducted on a 20m thick tuff section in a flyover formed by two exploratory tunnels. The infiltration test last for 870 days. Both measured infiltration and seepage show significant temporal and spatial variations. The tracer test used inorganic tracers (I (super -) , Br (super -) , F (super -) ) and organic tracers (fluorobenzoic acids) released 559 days after the infiltration test started. Leaching from dry salts from fracture walls was found to have affected tracer breakthroughs. The unsaturated flow was evaluated by optimizing 45 parameter values in a three-dimensional model, which accounts for fracture-matrix interaction and heterogeneous hydraulic properties in a column-based scheme. The field data are valuable asset to evaluate the modeling approaches for fractured rocks and the relative importance of the matrix diffusion process. Results show that matrix diffusion is an important process for transport, and that effective matrix-diffusion coefficients at the field-scale are larger than those at the laboratory-scale for the solutes. JF - Journal of Hydrology AU - Lu, Gongping AU - Liu, Huihai AU - Salve, Rohit Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 33 EP - 48 PB - Elsevier, Amsterdam VL - 396 IS - 1-2 SN - 0022-1694, 0022-1694 KW - United States KW - solute transport KW - hazardous waste KW - fractured materials KW - site exploration KW - unsaturated zone KW - simulation KW - seepage KW - radioactive waste KW - spatial variations KW - water-rock interaction KW - transport KW - movement KW - tracers KW - Yucca Mountain KW - water pollution KW - geochemistry KW - Nevada KW - bedrock KW - diffusion KW - three-dimensional models KW - pollutants KW - pollution KW - optimization KW - Nye County Nevada KW - hydrochemistry KW - boundary conditions KW - models KW - organic compounds KW - infiltration KW - theoretical models KW - testing KW - hydraulic conductivity KW - waste disposal KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861985182?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Hydrology&rft.atitle=Long+term+infiltration+and+tracer+transport+in+fractured+rocks%3B+field+observations+and+model+analyses&rft.au=Lu%2C+Gongping%3BLiu%2C+Huihai%3BSalve%2C+Rohit&rft.aulast=Lu&rft.aufirst=Gongping&rft.date=2011-01-01&rft.volume=396&rft.issue=1-2&rft.spage=33&rft.isbn=&rft.btitle=&rft.title=Journal+of+Hydrology&rft.issn=00221694&rft_id=info:doi/10.1016%2Fj.jhydrol.2010.10.030 L2 - http://www.sciencedirect.com/science/journal/00221694 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 5 tables, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JHYDA7 N1 - SubjectsTermNotLitGenreText - bedrock; boundary conditions; diffusion; fractured materials; geochemistry; hazardous waste; hydraulic conductivity; hydrochemistry; infiltration; models; movement; Nevada; Nye County Nevada; optimization; organic compounds; pollutants; pollution; radioactive waste; seepage; simulation; site exploration; solute transport; spatial variations; testing; theoretical models; three-dimensional models; tracers; transport; United States; unsaturated zone; waste disposal; water pollution; water-rock interaction; Yucca Mountain DO - http://dx.doi.org/10.1016/j.jhydrol.2010.10.030 ER - TY - JOUR T1 - High-resolution ultrasound displacement measurement using coded excitations AN - 861541409; 14228596 AB - Resolution of displacement measurements based on ultrasound pulse-echo techniques is limited by the center frequency of the transmitted wave, echo sampling rate, quantization errors, and electronic noises in the measurement system. We developed a new method utilizing the clutter signal in coded excitations to determine the displacement of an object or a desired region of an object with much improved resolution. The method includes transmitting a pair of Golay complementary sequences, receiving echoes from the object or a region of the object, compressing the pulse, eliminating the main lobe, and determining the object displacement between the two transmissions from the residual clutter signal around the main lobe of the compressed pulse. Results of computer simulations showed that the new method improved the resolution by several orders of magnitude and was more robust to noise than traditional pulse-echo methods. The new method was also evaluated using an experimental ultrasound system (10 MHz center frequency, 100 MHz sampling rate, and 8-bit sampling precision). A high precision in the displacement measurement was achieved with a measurement error of similar to 5.76 nm plus or minus 36.27 nm (mean plus or minus standard deviation). The method has the potential to be applied in biomedical and industrial measurements of distance, displacement, and thickness. JF - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control AU - Peng, Qiyu AU - Zhang, Li-Qun AD - Department of Radiotracer Development & Imaging Technology, Lawrence Berkeley National Laboratory, Berkeley, CA Y1 - 2011/01// PY - 2011 DA - Jan 2011 SP - 122 EP - 133 PB - Institute of Electrical and Electronics Engineers, Inc., 3 Park Avenue, 17th Fl New York NY 10016-5997 USA VL - 58 IS - 1 SN - 0885-3010, 0885-3010 KW - Biotechnology and Bioengineering Abstracts KW - Mathematical models KW - Standard deviation KW - Ultrasonics KW - Waves KW - Sampling KW - Ultrasound KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861541409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE+Transactions+on+Ultrasonics%2C+Ferroelectrics+and+Frequency+Control&rft.atitle=High-resolution+ultrasound+displacement+measurement+using+coded+excitations&rft.au=Peng%2C+Qiyu%3BZhang%2C+Li-Qun&rft.aulast=Peng&rft.aufirst=Qiyu&rft.date=2011-01-01&rft.volume=58&rft.issue=1&rft.spage=122&rft.isbn=&rft.btitle=&rft.title=IEEE+Transactions+on+Ultrasonics%2C+Ferroelectrics+and+Frequency+Control&rft.issn=08853010&rft_id=info:doi/10.1109%2FTUFFC.2011.1779 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-06-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Standard deviation; Mathematical models; Ultrasonics; Waves; Sampling; Ultrasound DO - http://dx.doi.org/10.1109/TUFFC.2011.1779 ER - TY - JOUR T1 - The interaction of Xe and Xe + K with graphene AN - 860395303; 14418534 AB - We have investigated the electronic properties of monolayer graphene with adsorbed layers of xenon or potassium, or a combination of the two. The formation of the first Xe layer is characterized by a dipole polarization which is quenched by a second Xe layer. By comparing K on Xe on graphene to K on bare graphene, we determine the K contribution to trigonal warping and mass renormalization due to electron-phonon coupling. The former is found to be small but significant, while the latter is shown to be negligible. Thus, previously determined values of electron-phonon coupling for K on graphene are shown to be intrinsic to doped graphene and not determined by the proximity of K ions to the graphene. JF - Journal of Electron Spectroscopy and Related Phenomena AU - Bostwick, Aaron AU - McChesney, Jessica L AU - Ohta, Taisuke AU - Emtsev, Konstantin V AU - Seyller, Thomas AU - Horn, Karsten AU - Rotenberg, Eli AD - Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA, abostwick@lbl.gov Y1 - 2011/01// PY - 2011 DA - Jan 2011 SP - 118 EP - 124 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 183 IS - 1-3 SN - 0368-2048, 0368-2048 KW - Biotechnology and Bioengineering Abstracts KW - Graphene KW - Doped graphene KW - Epitaxial graphene KW - Rare-gas adsorption KW - Ions KW - Potassium KW - Spectroscopy KW - Polarization KW - xenon KW - W 30905:Medical Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860395303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Electron+Spectroscopy+and+Related+Phenomena&rft.atitle=The+interaction+of+Xe+and+Xe+%2B+K+with+graphene&rft.au=Bostwick%2C+Aaron%3BMcChesney%2C+Jessica+L%3BOhta%2C+Taisuke%3BEmtsev%2C+Konstantin+V%3BSeyller%2C+Thomas%3BHorn%2C+Karsten%3BRotenberg%2C+Eli&rft.aulast=Bostwick&rft.aufirst=Aaron&rft.date=2011-01-01&rft.volume=183&rft.issue=1-3&rft.spage=118&rft.isbn=&rft.btitle=&rft.title=Journal+of+Electron+Spectroscopy+and+Related+Phenomena&rft.issn=03682048&rft_id=info:doi/10.1016%2Fj.elspec.2010.05.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Ions; Potassium; Polarization; Spectroscopy; xenon DO - http://dx.doi.org/10.1016/j.elspec.2010.05.003 ER - TY - JOUR T1 - Mechanics of layered anisotropic poroelastic media with applications to effective stress for fluid permeability AN - 856776814; 14198875 AB - The mechanics of vertically layered porous media has some similarities to and some differences from the more typical layered analysis for purely elastic media. Assuming welded solid contact at the solid-solid interfaces implies the usual continuity conditions, which are continuity of the vertical (layering direction) stress components and the horizontal strain components. These conditions are valid for both elastic and poroelastic media. Differences arise through the conditions for the pore pressure and the increment of fluid content in the context of fluid-saturated porous media. The two distinct conditions most often considered between any pair of contiguous layers are: (1) an undrained fluid condition at the interface, meaning that the increment of fluid content is zero (i.e., II =0), or (2) fluid pressure continuity at the interface, implying that the change in fluid pressure is zero across the interface (i.e., Ip f =0). Depending on the types of measurements being made on the system and the pertinent boundary conditions for these measurements, either (or neither) of these two conditions might be directly pertinent. But these conditions are sufficient nevertheless to be used as thought experiments to determine the expected values of all the poroelastic coefficients. For quasi-static mechanical changes over long time periods, we expect drained conditions to hold, so the pressure must then be continuous. For high-frequency wave propagation, the pore-fluid typically acts as if it were undrained (or very nearly so), with vanishing of the fluid increment at the boundaries being appropriate. Poroelastic analysis of both these end-member cases is discussed, and the general equations for a variety of applications to heterogeneous porous media are developed. In particular, effective stress for the fluid permeability of such poroelastic systems is considered; fluid permeabilities characteristic of granular media or tubular pore shapes are treated in some detail, as are permeabilities of some of the simpler types of fractured materials. JF - International Journal of Engineering Science AU - Berryman, James G AD - University of California, Lawrence Berkeley National Laboratory, One Cyclotron Road, MS 90R1116, Berkeley, CA 94720, USA, JGBerryman@LBL.GOV Y1 - 2011/01// PY - 2011 DA - Jan 2011 SP - 122 EP - 139 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 49 IS - 1 SN - 0020-7225, 0020-7225 KW - Aqualine Abstracts; Water Resources Abstracts KW - Anisotropic proelasticity KW - Effective stress KW - Fluid permeability KW - Porous Media KW - Boundary Conditions KW - Interfaces KW - Stress KW - Fracture Permeability KW - Strain KW - Wave Propagation KW - Shape KW - Boundaries KW - AQ 00001:Water Resources and Supplies KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856776814?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Engineering+Science&rft.atitle=Mechanics+of+layered+anisotropic+poroelastic+media+with+applications+to+effective+stress+for+fluid+permeability&rft.au=Berryman%2C+James+G&rft.aulast=Berryman&rft.aufirst=James&rft.date=2011-01-01&rft.volume=49&rft.issue=1&rft.spage=122&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Engineering+Science&rft.issn=00207225&rft_id=info:doi/10.1016%2Fj.ijengsci.2010.06.027 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Wave Propagation; Shape; Porous Media; Boundary Conditions; Interfaces; Boundaries; Stress; Fracture Permeability; Strain DO - http://dx.doi.org/10.1016/j.ijengsci.2010.06.027 ER - TY - JOUR T1 - Single-well experimental design for studying residual trapping of supercritical carbon dioxide AN - 851472351; 14258402 AB - The objective of our research is to design a single-well injection-withdrawal test to evaluate residual phase trapping at potential CO sub(2) geological storage sites. Given the significant depths targeted for CO sub(2) storage and the resulting high costs associated with drilling to those depths, it is attractive to develop a single-well test that can provide data to assess reservoir properties and reduce uncertainties in the appraisal phase of site investigation. The main challenges in a single-well test design include (1) difficulty in quantifying the amount of CO sub(2) that has dissolved into brine or migrated away from the borehole; (2) non-uniqueness and uncertainty in the estimate of the residual gas saturation (S sub(gr)) due to correlations among various parameters; and (3) the potential biased S sub(gr) estimate due to unaccounted heterogeneity of the geological medium. To address each of these challenges, we propose (1) to use a physical-based model to simulation test sequence and inverse modeling to analyze data information content and to quantify uncertainty; (2) to jointly use multiple data types generated from different kinds of tests to constrain the S sub(gr) estimate; and (3) to reduce the sensitivity of the designed tests to geological heterogeneity by conducting the same test sequence in both a water-saturated system and a system with residual gas saturation. To perform the design calculation, we build a synthetic model and conduct a formal analysis for sensitivity and uncertain quantification. Both parametric uncertainty and geological uncertainty are considered in the analysis. Results show (1) uncertainty in the estimation of S sub(gr) can be reduced by jointly using multiple data types and repeated tests; and (2) geological uncertainty is essential and needs to be accounted for in the estimation of S sub(gr) and its uncertainty. The proposed methodology is applied to the design of a CO sub(2) injection test at CO2CRC's Otway Project Site, Victoria, Australia. JF - International Journal of Greenhouse Gas Control AU - Zhang, Yingqi AU - Freifeld, Barry AU - Finsterle, Stefan AU - Leahy, Martin AU - Ennis-King, Jonathan AU - Paterson, Lincoln AU - Dance, Tess AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA, yqzhang@lbl.gov Y1 - 2011/01// PY - 2011 DA - Jan 2011 SP - 88 EP - 98 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 5 IS - 1 SN - 1750-5836, 1750-5836 KW - Environment Abstracts; Pollution Abstracts KW - Australia KW - Carbon dioxide KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/851472351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=Single-well+experimental+design+for+studying+residual+trapping+of+supercritical+carbon+dioxide&rft.au=Zhang%2C+Yingqi%3BFreifeld%2C+Barry%3BFinsterle%2C+Stefan%3BLeahy%2C+Martin%3BEnnis-King%2C+Jonathan%3BPaterson%2C+Lincoln%3BDance%2C+Tess&rft.aulast=Zhang&rft.aufirst=Yingqi&rft.date=2011-01-01&rft.volume=5&rft.issue=1&rft.spage=88&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2010.06.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-02-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Carbon dioxide; Australia DO - http://dx.doi.org/10.1016/j.ijggc.2010.06.011 ER - TY - JOUR T1 - Using complex resistivity imaging to infer biogeochemical processes associated with bioremediation of a uranium-contaminated aquifer AN - 1828845816; 2016-085880 JF - Jahrestagung der Deutschen Geophysikalischen Gesellschaft e.V. AU - Flores Orozco, A AU - Williams, K AU - Long, P AU - Hubbard, S AU - Kemna, A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 68 PB - Deutsche Geophysikalische Gesellschaft e.V., Clausthal-Zellerfeld VL - 71 SN - 0344-7251, 0344-7251 KW - United States KW - geophysical surveys KW - Garfield County Colorado KW - iron KW - remediation KW - ground water KW - Rifle Colorado KW - reduction KW - water pollution KW - esters KW - monitoring KW - acetates KW - sulfates KW - geophysical methods KW - electrical methods KW - pollution KW - resistivity KW - bioremediation KW - aquifers KW - organic compounds KW - metals KW - bacteria KW - surveys KW - uranium KW - Colorado KW - actinides KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828845816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Jahrestagung+der+Deutschen+Geophysikalischen+Gesellschaft+e.V.&rft.atitle=Using+complex+resistivity+imaging+to+infer+biogeochemical+processes+associated+with+bioremediation+of+a+uranium-contaminated+aquifer&rft.au=Flores+Orozco%2C+A%3BWilliams%2C+K%3BLong%2C+P%3BHubbard%2C+S%3BKemna%2C+A%3BAnonymous&rft.aulast=Flores+Orozco&rft.aufirst=A&rft.date=2011-01-01&rft.volume=71&rft.issue=&rft.spage=68&rft.isbn=&rft.btitle=&rft.title=Jahrestagung+der+Deutschen+Geophysikalischen+Gesellschaft+e.V.&rft.issn=03447251&rft_id=info:doi/ L2 - http://www.geomet.uni-koeln.de/fileadmin/DGG2011/abstract_volume_2011-02-04.pdf LA - English DB - GeoRef N1 - Conference title - 71. Jahrestagung der Deutschen Geophysikalischen Gesellschaft N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - acetates; actinides; aquifers; bacteria; bioremediation; Colorado; electrical methods; esters; Garfield County Colorado; geophysical methods; geophysical surveys; ground water; iron; metals; monitoring; organic compounds; pollution; reduction; remediation; resistivity; Rifle Colorado; sulfates; surveys; United States; uranium; water pollution ER - TY - JOUR T1 - Massively parallel 3D conductivity imaging of the subsurfce; applications to hydrocarbon exploration AN - 1828845773; 2016-086025 JF - Jahrestagung der Deutschen Geophysikalischen Gesellschaft e.V. AU - Newman, G AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 156 PB - Deutsche Geophysikalische Gesellschaft e.V., Clausthal-Zellerfeld VL - 71 SN - 0344-7251, 0344-7251 KW - petroleum exploration KW - imagery KW - electrical conductivity KW - parallel processing KW - geophysical methods KW - electromagnetic methods KW - electrical methods KW - data processing KW - petroleum KW - magnetotelluric methods KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1828845773?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Jahrestagung+der+Deutschen+Geophysikalischen+Gesellschaft+e.V.&rft.atitle=Massively+parallel+3D+conductivity+imaging+of+the+subsurfce%3B+applications+to+hydrocarbon+exploration&rft.au=Newman%2C+G%3BAnonymous&rft.aulast=Newman&rft.aufirst=G&rft.date=2011-01-01&rft.volume=71&rft.issue=&rft.spage=156&rft.isbn=&rft.btitle=&rft.title=Jahrestagung+der+Deutschen+Geophysikalischen+Gesellschaft+e.V.&rft.issn=03447251&rft_id=info:doi/ L2 - http://www.geomet.uni-koeln.de/fileadmin/DGG2011/abstract_volume_2011-02-04.pdf LA - English DB - GeoRef N1 - Conference title - 71. Jahrestagung der Deutschen Geophysikalischen Gesellschaft N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-10-25 N1 - SubjectsTermNotLitGenreText - data processing; electrical conductivity; electrical methods; electromagnetic methods; geophysical methods; imagery; magnetotelluric methods; parallel processing; petroleum; petroleum exploration ER - TY - JOUR T1 - Increased cycling efficiency and rate capability of copper-coated silicon anodes in lithium-ion batteries AN - 1777150193; 13939565 AB - Cycling efficiency and rate capability of porous copper-coated, amorphous silicon thin-film negative electrodes are compared to equivalent silicon thin-film electrodes in lithium-ion batteries. The presence of a copper layer coated on the active material plays a beneficial role in increasing the cycling efficiency and the rate capability of silicon thin-film electrodes. Between 3C and C/8 discharge rates, the available cell energy decreased by 8% and 18% for 40 nm copper-coated silicon and equivalent silicon thin-film electrodes, respectively. Copper-coated silicon thin-film electrodes also show higher cycling efficiency, resulting in lower capacity fade, than equivalent silicon thin-film electrodes. We believe that copper appears to act as a glue that binds the electrode together and prevents the electronic isolation of silicon particles, thereby decreasing capacity loss. Rate capability decreases significantly at higher copper coating thicknesses as the silicon active material is not accessed, suggesting that the thickness and porosity of the copper coating need to be optimized for enhanced capacity retention and rate capability in this system. JF - Journal of Power Sources AU - Sethuraman, Vijay A AU - Kowolik, Kristin AU - Srinivasan, Venkat AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8168, USA Y1 - 2011/01/01/ PY - 2011 DA - 2011 Jan 01 SP - 393 EP - 398 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 196 IS - 1 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); Copper Technical Reference Library (CD) KW - Alloy anodes KW - Copper coating KW - Cycling efficiency KW - Lithium-ion batteries KW - Rate capability KW - Silicon anodes KW - Cycles KW - Silicon KW - Coating KW - Equivalence KW - ANODES KW - BATTERIES KW - CU KW - SI KW - Copper KW - Lithium batteries KW - COATING KW - THIN FILMS KW - COATINGS KW - ELECTRONIC PRODUCTS KW - Electrodes KW - ELECTRODES KW - Electronics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777150193?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Increased+cycling+efficiency+and+rate+capability+of+copper-coated+silicon+anodes+in+lithium-ion+batteries&rft.au=Sethuraman%2C+Vijay+A%3BKowolik%2C+Kristin%3BSrinivasan%2C+Venkat&rft.aulast=Sethuraman&rft.aufirst=Vijay&rft.date=2011-01-01&rft.volume=196&rft.issue=1&rft.spage=393&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2010.06.043 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-02-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jpowsour.2010.06.043 ER - TY - JOUR T1 - Evaluating the national air toxics assessment (NATA): Comparison of predicted and measured air toxics concentrations, risks, and sources in Pittsburgh, Pennsylvania AN - 1777129455; 14200417 AB - The National Air Toxics Assessment (NATA) is an ongoing modeling effort by the Environmental Protection Agency to predict air toxics concentrations, sources, and risks at the census tract level throughout the continental United States. To evaluate NATA, archived data collected at seven sites in and around Pittsburgh, Pennsylvania were compared to 2002 NATA predictions. The sites represent 3 different source regimes (mobile dominated, industrial point source dominated, and background). The evaluation considered 49 air toxics (37 gas-phase organics, 10 metals, coke oven emissions and diesel particulate matter); NATA's performance was judged based on model-measurement comparisons of concentrations, health risks, and source contributions. On a concentration basis, NATA performance varied widely ranging from excellent for carbon tetrachloride to differences of more than a factor of 100 for low concentration chlorinated compounds. However, predicted concentrations were generally within a factor of 2 of measured values for air toxics that were estimated to be the primary cancer risk drivers; therefore NATA provided reasonable estimates of the additive cancer risks and risk ranking of air toxics. NATA performs better on average in Pittsburgh than nationwide. Comparison of source apportionment results indicates that NATA consistently underestimated concentrations of compounds emitted by large point sources as well as concentrations of chlorinated compounds, but overestimated the risks from mobile sources in Pittsburgh. Therefore, in Pittsburgh, NATA sufficiently prioritizes air toxics that drive potential cancer risks, but does not identify the sources of these priority air toxics. JF - Atmospheric Environment AU - Logue, Jennifer M AU - Small, Mitchell J AU - Robinson, Allen L AD - Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA 15213, USA jmlogue@lbl.gov Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 476 EP - 484 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 45 IS - 2 SN - 1352-2310, 1352-2310 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Point sources KW - Risk KW - Mathematical models KW - Assessments KW - Nata KW - Toxicology KW - Cancer KW - Toxic UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777129455?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Evaluating+the+national+air+toxics+assessment+%28NATA%29%3A+Comparison+of+predicted+and+measured+air+toxics+concentrations%2C+risks%2C+and+sources+in+Pittsburgh%2C+Pennsylvania&rft.au=Logue%2C+Jennifer+M%3BSmall%2C+Mitchell+J%3BRobinson%2C+Allen+L&rft.aulast=Logue&rft.aufirst=Jennifer&rft.date=2011-01-01&rft.volume=45&rft.issue=2&rft.spage=476&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2010.09.053 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-09-01 N1 - Number of references - 1 N1 - Last updated - 2016-08-08 DO - http://dx.doi.org/10.1016/j.atmosenv.2010.09.053 ER - TY - JOUR T1 - High-throughput enzymatic hydrolysis of lignocellulosic biomass via in-situ regeneration AN - 1777114968; 14180431 AB - The high cost of lignocellulolytic enzymes is one of the main barriers towards the development of economically competitive biorefineries. Enzyme engineering can be used to significantly increase the production rate as well as specific activity of enzymes. However, the success of enzyme optimization efforts is currently limited by a lack of robust high-throughput (HTP) cellulase screening platforms for insoluble pretreated lignocellulosic substrates. We have developed a cost-effective microplate based HTP enzyme-screening platform for ionic liquid (IL) pretreated lignocellulose. By performing in-situ biomass regeneration in micro-volumes, we can volumetrically meter biomass (sub-mg loading) and also precisely control the amount of residual IL for engineering novel IL-tolerant cellulases. Our platform only requires straightforward liquid-handling steps and allows the integration of biomass regeneration, washing, saccharification, and imaging steps in a single microtiter plate. The proposed method can be used to screen individual cellulases as well as to develop novel cellulase cocktails. JF - Bioresource Technology AU - Bharadwaj, Rajiv AU - Wong, April AU - Knierim, Bernhard AU - Singh, Seema AU - Holmes, Bradley M AU - Auer, Manfred AU - Simmons, Blake A AU - Adams, Paul D AU - Singh, Anup K AD - Technology Division, Joint BioEnergy Institute, Emeryville, CA, United States Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 1329 EP - 1337 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 102 IS - 2 SN - 0960-8524, 0960-8524 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - High-throughput KW - Cellulase KW - Ionic liquid KW - Conductivity KW - Biofuel KW - Cost engineering KW - Meters KW - Regeneration KW - Economics KW - Enzymes KW - Imaging KW - Biomass KW - Platforms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777114968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioresource+Technology&rft.atitle=High-throughput+enzymatic+hydrolysis+of+lignocellulosic+biomass+via+in-situ+regeneration&rft.au=Bharadwaj%2C+Rajiv%3BWong%2C+April%3BKnierim%2C+Bernhard%3BSingh%2C+Seema%3BHolmes%2C+Bradley+M%3BAuer%2C+Manfred%3BSimmons%2C+Blake+A%3BAdams%2C+Paul+D%3BSingh%2C+Anup+K&rft.aulast=Bharadwaj&rft.aufirst=Rajiv&rft.date=2011-01-01&rft.volume=102&rft.issue=2&rft.spage=1329&rft.isbn=&rft.btitle=&rft.title=Bioresource+Technology&rft.issn=09608524&rft_id=info:doi/10.1016%2Fj.biortech.2010.08.108 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.biortech.2010.08.108 ER - TY - JOUR T1 - Regional climate consequences of large-scale cool roof and photovoltaic array deployment AN - 1687693399; PQ0001576342 AB - Modifications to the surface albedo through the deployment of cool roofs and pavements (reflective materials) and photovoltaic arrays (low reflection) have the potential to change radiative forcing, surface temperatures, and regional weather patterns. In this work we investigate the regional climate and radiative effects of modifying surface albedo to mimic massive deployment of cool surfaces (roofs and pavements) and, separately, photovoltaic arrays across the United States. We use a fully coupled regional climate model, the Weather Research and Forecasting (WRF) model, to investigate feedbacks between surface albedo changes, surface temperature, precipitation and average cloud cover. In response to increased urban albedo, some rural locations showed summer afternoon temperature increases of up to +0.27 [degrees]C and these regions were correlated with less cloud cover and lower precipitation. Statistically significant but lower magnitude changes to temperature and radiation could be seen across the domain due to the introduction of the solar arrays. JF - Environmental Research Letters AU - Millstein, Dev AU - Menon, Surabi AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA, dmillstein@lbl.gov Y1 - 2011///0, PY - 2011 DA - 0, 2011 SP - 1 EP - 9 PB - IOP Publishing, The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States VL - 6 IS - 3 SN - 1748-9326, 1748-9326 KW - Meteorological & Geoastrophysical Abstracts; Environment Abstracts KW - photovoltaics KW - cool roofs KW - CO2 offsets KW - radiative forcing KW - urban environment KW - Weather KW - Surface temperatures KW - Climate models KW - Rainfall KW - Albedo KW - Temperature KW - Summer KW - Regional climates KW - Environmental research KW - Precipitation KW - Cloud cover KW - USA KW - Radiative forcing KW - Radiation KW - Solar cells KW - Regional climate models KW - Statistical forecasting KW - Rural areas KW - ENA 03:Energy KW - M2 551.581:Latitudinal Influences (551.581) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1687693399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Research+Letters&rft.atitle=Regional+climate+consequences+of+large-scale+cool+roof+and+photovoltaic+array+deployment&rft.au=Millstein%2C+Dev%3BMenon%2C+Surabi&rft.aulast=Millstein&rft.aufirst=Dev&rft.date=2011-01-01&rft.volume=6&rft.issue=3&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Environmental+Research+Letters&rft.issn=17489326&rft_id=info:doi/10.1088%2F1748-9326%2F6%2F3%2F034001 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-06-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Surface temperatures; Climate models; Radiative forcing; Radiation; Albedo; Regional climate models; Environmental research; Regional climates; Statistical forecasting; Cloud cover; Precipitation; Weather; Rainfall; Solar cells; Temperature; Summer; Rural areas; USA DO - http://dx.doi.org/10.1088/1748-9326/6/3/034001 ER - TY - JOUR T1 - Climate forcing and response to idealized changes in surface latent and sensible heat AN - 1687677982; PQ0001576373 AB - Land use and land cover changes affect the partitioning of latent and sensible heat, which impacts the broader climate system. Increased latent heat flux to the atmosphere has a local cooling influence known as 'evaporative cooling', but this energy will be released back to the atmosphere wherever the water condenses. However, the extent to which local evaporative cooling provides a global cooling influence has not been well characterized. Here, we perform a highly idealized set of climate model simulations aimed at understanding the effects that changes in the balance between surface sensible and latent heating have on the global climate system. We find that globally adding a uniform 1 W m super(-2) source of latent heat flux along with a uniform 1 W m super(-2) sink of sensible heat leads to a decrease in global mean surface air temperature of 0.54 + or - 0.04 K. This occurs largely as a consequence of planetary albedo increases associated with an increase in low elevation cloudiness caused by increased evaporation. Thus, our model results indicate that, on average, when latent heating replaces sensible heating, global, and not merely local, surface temperatures decrease. JF - Environmental Research Letters AU - Ban-Weiss, George A AU - Bala, Govindasamy AU - Cao, Long AU - Pongratz, Julia AU - Caldeira, Ken AD - Department of Global Ecology, Carnegie Institution, 260 Panama Street, Stanford, CA 94305, USA; Heat Island Group, Atmospheric Sciences Department, Lawrence Berkeley National Laboratory, One Cyclotron Road, MS90R2000, Berkeley, CA 94720, USA, kcaldeira@carnegie.stanford.edu Y1 - 2011///0, PY - 2011 DA - 0, 2011 SP - 1 EP - 8 PB - IOP Publishing, The Public Ledger Building, Suite 929 Philadelphia PA 19106 United States VL - 6 IS - 3 SN - 1748-9326, 1748-9326 KW - Meteorological & Geoastrophysical Abstracts; Environment Abstracts KW - climate change KW - latent heat KW - evapotranspiration KW - Bowen ratio KW - evaporative cooling KW - Surface temperatures KW - Climate models KW - Evaporation KW - Albedo KW - Temperature KW - Simulation KW - Global cooling KW - Environmental research KW - Atmosphere KW - Air temperature KW - Land use KW - Global climate KW - Numerical simulations KW - Energy KW - Cloudiness KW - Latent heat flux KW - Sensible heat KW - Evaporative cooling KW - M2 556.13:Evaporation/Evapotranspiration (556.13) KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1687677982?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Research+Letters&rft.atitle=Climate+forcing+and+response+to+idealized+changes+in+surface+latent+and+sensible+heat&rft.au=Ban-Weiss%2C+George+A%3BBala%2C+Govindasamy%3BCao%2C+Long%3BPongratz%2C+Julia%3BCaldeira%2C+Ken&rft.aulast=Ban-Weiss&rft.aufirst=George&rft.date=2011-01-01&rft.volume=6&rft.issue=3&rft.spage=1&rft.isbn=&rft.btitle=&rft.title=Environmental+Research+Letters&rft.issn=17489326&rft_id=info:doi/10.1088%2F1748-9326%2F6%2F3%2F034032 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-06-01 N1 - Last updated - 2016-08-03 N1 - SubjectsTermNotLitGenreText - Global climate; Surface temperatures; Climate models; Numerical simulations; Evaporation; Albedo; Cloudiness; Global cooling; Environmental research; Latent heat flux; Land use; Evaporative cooling; Energy; Temperature; Simulation; Atmosphere; Air temperature; Sensible heat DO - http://dx.doi.org/10.1088/1748-9326/6/3/034032 ER - TY - JOUR T1 - Acceleration of calcite deposition imposed by organic substrate of self-assembled monolayers AN - 1686060842; 2015-045577 AB - Underground deposition of calcium carbonate (CaCO3) withdrawing atmospheric CO2 is a crucial topic for carbon sequestration. Plenty of evidence has proved that microbes and organic matters are able to speed up carbonate deposition rate up to a couple of order of magnitudes. In the past decade, to reproduce the controls of organic molecules on carbonate mineralization, simpler self-assembled monolayers (SAMs) terminated by carboxylic groups have been heavily used as model templates for CaCO3 crystallization. COOH-terminated 16-mercaptohexadecanoic acid (MHA) monolayer is the most representative SAM. It strongly favors nucleation of calcite on the non-natural (012) oriented faces (Aizenberg et al., 1999; Whitesides et al., 1994). However, the kinetic and thermodynamic controls imposed by MHA are poorly understood. The reduction of formation energy of calcite by MHA has not been addressed. In this study, we cultivate calcite at MHA surfaces on Au (111) faces, and quantify the interfacial energy associated with template-directed calcite on MHA by measuring the dependence of the nucleation rate on supersaturation. The results reveal that (1) the MHA SAM significantly reduces the surface energy created during calcite nucleation from at least 97 mJ/m2 for homogenous nucleation in solution to about 46 mJ/m2, which confirm the strong capacity of MHA of promoting CaCO3 deposition; and (2) amorphous calcium carbonate begins to appear when the supersaturation with respect to that phase is only 0.02, suggesting that the pathway of nucleation is not determined by the free energy barrier, but rather the kinetic factors. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Hu, Qiaona AU - Udo, Becker AU - de Yoreo, Jim AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2011 KW - substrates KW - laboratory studies KW - organic compounds KW - experimental studies KW - deposition KW - crystallization KW - calcium carbonate KW - solution KW - kinetics KW - carbonates KW - calcite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1686060842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Acceleration+of+calcite+deposition+imposed+by+organic+substrate+of+self-assembled+monolayers&rft.au=Hu%2C+Qiaona%3BUdo%2C+Becker%3Bde+Yoreo%2C+Jim%3BAnonymous&rft.aulast=Hu&rft.aufirst=Qiaona&rft.date=2011-01-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/html/2011/annual/abstracts/Hu.html LA - English DB - GeoRef N1 - Conference title - AAPG 2011 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2015-01-01 N1 - PubXState - OK N1 - SuppNotes - Accessed on Feb. 13, 2015 N1 - Last updated - 2015-06-05 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - calcite; calcium carbonate; carbonates; crystallization; deposition; experimental studies; kinetics; laboratory studies; organic compounds; solution; substrates ER - TY - JOUR T1 - Transport in Porous Media AN - 1676579250; 2015-036679 JF - Transport in Porous Media AU - Zhou, Quanlin AU - Birkholzer, Jens T AU - Tsang, Chin-Fu Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 327 EP - 328 PB - Springer, Dordrecht VL - 86 IS - 1 SN - 0169-3913, 0169-3913 KW - hydraulic head KW - injection KW - hydrodynamics KW - mathematical models KW - leaky aquifers KW - aquitards KW - confining pressure KW - ground water KW - aquifers KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1676579250?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Transport+in+Porous+Media&rft.au=Zhou%2C+Quanlin%3BBirkholzer%2C+Jens+T%3BTsang%2C+Chin-Fu&rft.aulast=Zhou&rft.aufirst=Quanlin&rft.date=2011-01-01&rft.volume=86&rft.issue=1&rft.spage=327&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9680-y L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2015-01-01 N1 - SuppNotes - For reference to discussion see Veling, E. J. M., Transport in Porous Media, Vol. 86, No. 1, p. 325-326, 1986; for reference to original see Zhou, Quanlin, et al., Transport in Porous Media, Vol. 78, No. 1, p. 127-148, 2009 N1 - Last updated - 2015-04-30 N1 - SubjectsTermNotLitGenreText - aquifers; aquitards; confining pressure; ground water; hydraulic head; hydrodynamics; injection; leaky aquifers; mathematical models DO - http://dx.doi.org/10.1007/s11242-010-9680-y ER - TY - JOUR T1 - Coupled interpretation of geoelectrical surveying results in environmental site investigations AN - 1623258149; 2014-087416 AB - Geoelectric methods are sensitive to material properties which can be used to investigate subsurficial processes at contaminated sites. Electrical resistivity tomography (ERT) measures the electrical resistivity distribution in the ground; the self-potential (SP) method is based on source current densities resulting from ground water flow; and induced polarization (IP) responds to geochemical interactions between mineral surfaces and pore fluids. Ground water flow patterns and contaminant migration may be better understood if the results of these survey methods are interpreted jointly rather than separately. The purpose of this project is to jointly interpret results of geophysical surveying and laboratory characterization of soil and ground water samples to assess ground water flow patterns and contaminant migration at a site within the Oak Ridge National Laboratory. Historical disposal of liquid waste containing nitric acid and uranium in unlined ponds has resulted in contamination of soil and ground water. ERT, SP, and IP surveying was performed downgradient of the source area and the geophysical behavior of sediment and ground water samples was investigated in the laboratory. Measured electrical conductivity and self-potential anomalies coincided with elevated nitrate and uranium concentrations indicating preferential flow from the source area. The self-potential response can be related to ground water flow either by calculating the excess of charge in the diffuse layer surrounding mineral surfaces or by the streaming potential coupling coefficient. Geochemical reactions between pore water and minerals and their surfaces were modeled using the contaminant transport software TOUGHREACT. Surface complexation modeling using the Gouy-Chapman diffuse double layer was used to simulate charge density-surface potential relationship. Laboratory measurements of the streaming potential coupling coefficient of sediment samples at various pH and salt concentrations were used to interpret the ground water flow from SP and ERT signals. The method qualitatively explained the observed variations in geophysical responses. JF - American Geophysical Union Fall Meeting AU - Skold, M AU - Hubbard, S S AU - Karaoulis, M AU - Revil, A AU - Spycher, N AU - Watson, D B AU - Wu, Y AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - Abstract H34B EP - 03 PB - American Geophysical Union, Washington, DC VL - 2011 KW - solute transport KW - water quality KW - site exploration KW - geophysical methods KW - electrical methods KW - pollution KW - environmental analysis KW - ground water KW - flows KW - transport KW - liquid waste KW - soil pollution KW - waste disposal KW - water pollution KW - pore water KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1623258149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Geophysical+Union+Fall+Meeting&rft.atitle=Coupled+interpretation+of+geoelectrical+surveying+results+in+environmental+site+investigations&rft.au=Skold%2C+M%3BHubbard%2C+S+S%3BKaraoulis%2C+M%3BRevil%2C+A%3BSpycher%2C+N%3BWatson%2C+D+B%3BWu%2C+Y%3BAnonymous&rft.aulast=Skold&rft.aufirst=M&rft.date=2011-01-01&rft.volume=2011&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Geophysical+Union+Fall+Meeting&rft.issn=&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - American Geophysical Union 2011 fall meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2014-01-01 N1 - PubXState - DC N1 - Last updated - 2014-11-13 N1 - CODEN - #07548 N1 - SubjectsTermNotLitGenreText - electrical methods; environmental analysis; flows; geophysical methods; ground water; liquid waste; pollution; pore water; site exploration; soil pollution; solute transport; transport; waste disposal; water pollution; water quality ER - TY - JOUR T1 - Effects of organic ligands and temperature on the kinetics and mechanisms of olivine carbonation AN - 1566814652; 2014-077041 AB - The slow dissolution kinetics of Mg-rich silicates has become a critical issue for the geologic CO (sub 2) sequestration in basic rocks. Previous batch carbonation studies on San Carlos olivine performed in CO (sub 2) saturated water (at 90 degrees C and PCO (sub 2) = 280 bar) have focused on the role that secondary phases, such as amorphous silica layers (SiO (sub 2) (am)), have on the transport of reactants from and to the reactive surfaces. The fluid composition remained roughly constant over the duration of the experiment, close to saturation with respect to amorphous silica and with a [Mg (super 2+) ]/[SiO (sub 2) (aq)] ratio close to stoechiometric release, suggesting a passivation of the olivine surface by the silica layer. In order to accelerate the dissolution process, organic ligands such as citrate and acetate were added to the solutions and tested at 1M and 0.1M concentrations in similar batch experiments. An intrinsic increase of the dissolution rate of olivine was expected prior to the formation of a passivating silica layer. Preliminary results confirm this idea since Mg was released in non-stoechimoetric proportions with respect to SiO (sub 2) (aq) (found to be in equilibrium with SiO (sub 2) (am)). Similarly, a slight increase of temperature (from 90 degrees C to 120 degrees C) accelerated the reaction kinetics as well, possibly impacting the textural properties of SiO (sub 2) (am). Current TEM investigations are directed to confirming a possible link between the observed increase of the rate and textural properties of secondary phases. In addition, because carbonate minerals have a retrograde solubility, thermodynamical modelling suggests that this temperature increase should allow the fluid to reach saturation with respect to carbonates before reaching saturation with respect to SiO (sub 2) (am). Enough Mg can therefore be released to initiate the formation of carbonates before the silica precipitates and passivates the olivine surface. JF - Mineralogical Magazine AU - Sissmann, O AU - Daval, D AU - Martinez, I AU - Brunet, F AU - Findling, N AU - Guyot, F AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1885 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - experimental studies KW - solutions KW - amorphous materials KW - textures KW - rates KW - olivine group KW - carbonation KW - solution KW - San Carlos Olivine KW - TEM data KW - temperature KW - carbon dioxide KW - nesosilicates KW - organic compounds KW - ligands KW - saturation KW - silica KW - precipitation KW - olivine KW - orthosilicates KW - kinetics KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1566814652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Effects+of+organic+ligands+and+temperature+on+the+kinetics+and+mechanisms+of+olivine+carbonation&rft.au=Sissmann%2C+O%3BDaval%2C+D%3BMartinez%2C+I%3BBrunet%2C+F%3BFindling%2C+N%3BGuyot%2C+F%3BAnonymous&rft.aulast=Sissmann&rft.aufirst=O&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1885&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1772.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Last updated - 2014-10-02 N1 - SubjectsTermNotLitGenreText - amorphous materials; carbon dioxide; carbonation; experimental studies; kinetics; ligands; nesosilicates; olivine; olivine group; organic compounds; orthosilicates; precipitation; rates; San Carlos Olivine; saturation; silica; silicates; solution; solutions; TEM data; temperature; textures ER - TY - JOUR T1 - A multi-component reactive transport model assessment of microbial processes and trace metal cycling across a gradient in sulfate reduction rates along the California margin AN - 1510395975; 2014-020290 AB - Sediments and pore water from 4 ODP Leg 167 sites along the California Margin (1011, 1017, 1018 and 1020) were used to compare biogeochemical processes across a gradient of sulfate reduction (SR) rates with the purpose of studying the processes that control these rates and how they affect trace metal redistribution. Measurements of the trace element composition of pore water and sediment along with %CaCO (sub 3) , %biogenic silica, wt% carbon and delta (super 13) C of Total Organic Carbon (TOC) were used to constrain the multicomponent reactive transport model CrunchFlow. The rates of sulfate reduction, methanogenesis and anaerobic methane oxygenation (AMO) were constrained by fitting the model to the measured concentration profiles. The sites are distinguished by the depth of AMO: a shallow zone is observed at sites 1018 (14 to 19 mcd) and 1017 (23 to 27 mcd), while deeper zones occur at sites 1011 (45 to 55 mcd) and 1020 (97 to 113 mcd). In general, the sulfate reduction rates are faster (on the order of 9-9.9*10 (super -17) mol/L/yr) for the shallow zones, compared to 1-1.4*10 (super -17) mol/L/yr for the deeper zones. AMO rates are also faster at the shallow belt 2*10 (super -7) mol/L/yr compared to 3*10 (super -8) mol/L/yr at the deeper sites. Sites with shallow sulfate reduction zones appear to have high rates of AMO resulting in high alkalinity concentrations close to the sediment-water interface. The dissolved metal ion concentrations also varied between the sites, with Fe (0.01-7 uM) and Mn (0.01-57 uM) concentrations highest at Site 1020 (water depth 3000 m) and lowest at site 1017 (water depth 950 m). The highest Fe and Mn concentrations occurred at various depths, with no direct correlation to sulfate reduction and alkalinity maximum values. Modeling of the dissolved and solid SiO (sub 2) , Ca, Mg, K, Mn and Fe is used to establish the relationship between the biogeochemical reactions and trace metal variations and to better constrain the parameters that influence the trace metal distributions in the sediment column. JF - Mineralogical Magazine AU - Schneider Mor, Aya AU - Steefel, C AU - Maher, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1822 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - Northeast Pacific KW - isotopes KW - ODP Site 1020 KW - stable isotopes KW - California KW - marine sediments KW - transport KW - total organic carbon KW - carbon KW - sediments KW - reactive transport KW - reduction KW - ocean floors KW - East Pacific KW - continental margin KW - sulfates KW - ODP Site 1018 KW - ODP Site 1017 KW - isotope ratios KW - C-13/C-12 KW - ODP Site 1011 KW - Gorda Rise KW - models KW - organic compounds KW - Leg 167 KW - North Pacific KW - metals KW - Pacific Ocean KW - Ocean Drilling Program KW - pore water KW - 07:Oceanography KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1510395975?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=A+multi-component+reactive+transport+model+assessment+of+microbial+processes+and+trace+metal+cycling+across+a+gradient+in+sulfate+reduction+rates+along+the+California+margin&rft.au=Schneider+Mor%2C+Aya%3BSteefel%2C+C%3BMaher%2C+K%3BAnonymous&rft.aulast=Schneider+Mor&rft.aufirst=Aya&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1822&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1772.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - SuppNotes - Accessed on Feb. 8, 2013 N1 - Last updated - 2014-03-27 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - C-13/C-12; California; carbon; continental margin; East Pacific; Gorda Rise; isotope ratios; isotopes; Leg 167; marine sediments; metals; models; North Pacific; Northeast Pacific; Ocean Drilling Program; ocean floors; ODP Site 1011; ODP Site 1017; ODP Site 1018; ODP Site 1020; organic compounds; Pacific Ocean; pore water; reactive transport; reduction; sediments; stable isotopes; sulfates; total organic carbon; transport; United States ER - TY - JOUR T1 - On modeling H (super +) and U transport behavior in an acidic plume AN - 1492590235; 2014-006588 AB - A nearly 1 km long acidic plume has developed under the F-Area at the U.S. Department of Energy Savannah River Site, South Carolina, from the disposal of low-level acidic radioactive waste solutions into seepage basins overlying relatively permeable, mostly sandy sediments. The disposal operations lasted for about 35 years until 1990, when the seepage basins were solidified and capped. Since then, the groundwater pH in the plume has remained mostly in the 3-3.5 range despite the end of disposal operations and fast groundwater velocities, although U concentration adjacent to the basins has been decreasing exponentially. Here, we report on exploratory geochemical and reactive transport modeling investigations conducted to assess the relative roles of surface protonation and mineral precipitation in slowing down the rebound of pH at this site, as well as U transport behavior downgradient of the disposal basins. The modeling work is integrated with investigations of 'reactive facies', which aim at identifying specific types of sediments with unique properties affecting reactive transport, then correlating these sediment types with lithologic facies and their associated geophysical signatures for estimation of reactive properties over plume scales. One- and two-dimensional reactive transport simulations were conducted considering Al and Fe mineral dissolution and precipitation, as well as H (super +) and U surface complexation models from the literature. Simulations indicate that H (super +) sorption reactions on goethite and kaolinite (primary minerals at the site besides quartz) could buffer pH at the site for long periods of time. The precipitation of Al silicates, hydroxides, and/or hydroxy sulfates could also strongly impede pH rebound at the site. Although the pH is computed to rebound quite slowly, U concentrations could potentially decrease at comparatively much faster rates from dilution with clean recharge water. Simulations results are most sensitive to reactive surface areas, to relative rates of reaction versus acidic discharge, to relative rates of mineral precipitation and dissolution, and to the type of implemented sorption models and parameters. The model sensitivity to heterogeneous fields of permeability and reactive surface areas derived from the reactive facies investigations is also investigated. JF - Mineralogical Magazine AU - Spycher, N AU - Mukhopadhyay, S AU - Sassen, D AU - Murakami, H AU - Hubbard, S AU - Davis, J AU - Denham, M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1925 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - contaminant plumes KW - South Carolina KW - pollutants KW - Allendale County South Carolina KW - pollution KW - environmental analysis KW - radioactive waste KW - models KW - waste management KW - transport KW - metals KW - hydrogen KW - uranium KW - waste disposal KW - Savannah River Site KW - actinides KW - Barnwell County South Carolina KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492590235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=On+modeling+H+%28super+%2B%29+and+U+transport+behavior+in+an+acidic+plume&rft.au=Spycher%2C+N%3BMukhopadhyay%2C+S%3BSassen%2C+D%3BMurakami%2C+H%3BHubbard%2C+S%3BDavis%2C+J%3BDenham%2C+M%3BAnonymous&rft.aulast=Spycher&rft.aufirst=N&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1925&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1772.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Last updated - 2014-01-30 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - actinides; Allendale County South Carolina; Barnwell County South Carolina; contaminant plumes; environmental analysis; hydrogen; metals; models; pollutants; pollution; radioactive waste; Savannah River Site; South Carolina; transport; United States; uranium; waste disposal; waste management ER - TY - JOUR T1 - Upscaling pore scale carbonate precipitation rates to the continuum scale AN - 1492589856; 2014-006601 AB - An integrated approach combining experimental reactive flow columns and continuum-scale reactive transport modeling has been used to compare microscopic and bulk (upscaled) rates of carbonate mineral precipitation. The experiments consisted of the injection of supersaturated, carbonate-rich solutions into calcite packs. Bulk rates of precipitation based on the change in chemistry over the length of the column were compared with spatially resolved determinations of carbonate precipitation using X-ray synchrotron imaging at the micron scale. These data are supplemented by well-stirred reactor experiments to evaluate the rate of precipitation as a function of solution supersaturation in the absence of transport effects. Results indicate good agreement between rates determined with fluid chemistry and with microtomography. The distribution of calcite precipitates shows a nonlinear spatial profile, with the greatest accumulation near the column inlet. Precipitation is greatest on Iceland spar seeds, with crystal morphology of the new precipitates suggesting growth via a 2D heterogeneous nucleation mechanism. Using the rates of precipitation as a function of supersaturation determined in the well-stirred flowthrough reactors, it is possible to match the spatially-resolved microtomographic data with a continuum reactive transport model if the generation of new reactive surface area is accounted for. The experimentally-determined value of 0.90 m (super 2) /g for the specific surface area of the neoformed calcite, added to the initial calcite surface area of 0.012 m (super 2) /g, results in good agreement with the continuum model. The approach used here also demonstrates that it is possible to determine upscaled reactive surface area in porous media if the intrinsic rate (per unit surface area mineral) is known. JF - Mineralogical Magazine AU - Steefel, C I AU - Noiriel, C AU - Yang, L AU - Ajo-Franklin, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1931 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - tomography KW - Iceland spar KW - chemical reactions KW - precipitation KW - crystal structure KW - aqueous solutions KW - crystal chemistry KW - chemical composition KW - geochemistry KW - carbonates KW - calcite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1492589856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Upscaling+pore+scale+carbonate+precipitation+rates+to+the+continuum+scale&rft.au=Steefel%2C+C+I%3BNoiriel%2C+C%3BYang%2C+L%3BAjo-Franklin%2C+J%3BAnonymous&rft.aulast=Steefel&rft.aufirst=C&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1931&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1772.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2014-01-01 N1 - Last updated - 2014-01-30 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - aqueous solutions; calcite; carbonates; chemical composition; chemical reactions; crystal chemistry; crystal structure; geochemistry; Iceland spar; precipitation; tomography ER - TY - JOUR T1 - Correlated microanalysis of cometary organic grains returned by Stardust AN - 1473594826; 2013-006070 AB - Carbonaceous matter in Stardust samples returned from comet 81P/Wild 2 is observed to contain a wide variety of organic functional chemistry. However, some of this chemical variety may be due to contamination or alteration during particle capture in aerogel. We investigated six carbonaceous Stardust samples that had been previously analyzed and six new samples from Stardust Track 80 using correlated transmission electron microscopy (TEM), X-ray absorption near-edge structure spectroscopy (XANES), and secondary ion mass spectroscopy (SIMS). TEM revealed that samples from Track 35 containing abundant aliphatic XANES signatures were predominantly composed of cometary organic matter infilling densified silica aerogel. Aliphatic organic matter from Track 16 was also observed to be soluble in the epoxy embedding medium. The nitrogen-rich samples in this study (from Track 22 and Track 80) both contained metal oxide nanoparticles, and are likely contaminants. Only two types of cometary organic matter appear to be relatively unaltered during particle capture. These are (1) polyaromatic carbonyl-containing organic matter, similar to that observed in insoluble organic matter (IOM) from primitive meteorites, interplanetary dust particles (IDPs), and in other carbonaceous Stardust samples, and (2) highly aromatic refractory organic matter, which primarily constitutes nanoglobule-like features. Anomalous isotopic compositions in some of these samples also confirm their cometary heritage. There also appears to be a significant labile aliphatic component of Wild 2 organic matter, but this material could not be clearly distinguished from carbonaceous contaminants known to be present in the Stardust aerogel collector. JF - Meteoritics & Planetary Science AU - De Gregorio, Bradley T AU - Stroud, Rhonda M AU - Cody, George D AU - Nittler, Larry R AU - Kilcoyne, A L David AU - Wirick, Sue Y1 - 2011 PY - 2011 DA - 2011 SP - 1376 EP - 1396 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 9 SN - 1086-9379, 1086-9379 KW - alteration KW - particle tracks KW - ion probe data KW - Stardust Mission KW - aliphatic hydrocarbons KW - mass spectra KW - X-ray spectra KW - TEM data KW - nitrogen KW - XANES spectra KW - organic compounds KW - comets KW - insoluble residues KW - hydrocarbons KW - Wild 2 Comet KW - oxides KW - aerogel KW - spectra KW - nanoparticles KW - cometary dust KW - aromatic hydrocarbons KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1473594826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Correlated+microanalysis+of+cometary+organic+grains+returned+by+Stardust&rft.au=De+Gregorio%2C+Bradley+T%3BStroud%2C+Rhonda+M%3BCody%2C+George+D%3BNittler%2C+Larry+R%3BKilcoyne%2C+A+L+David%3BWirick%2C+Sue&rft.aulast=De+Gregorio&rft.aufirst=Bradley&rft.date=2011-01-01&rft.volume=46&rft.issue=9&rft.spage=1376&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01237.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 85 N1 - PubXState - AR N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2014-01-02 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - aerogel; aliphatic hydrocarbons; alteration; aromatic hydrocarbons; cometary dust; comets; hydrocarbons; insoluble residues; ion probe data; mass spectra; nanoparticles; nitrogen; organic compounds; oxides; particle tracks; spectra; Stardust Mission; TEM data; Wild 2 Comet; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01237.x ER - TY - JOUR T1 - Solid speciation of As, Pb and Sb-rich anthropogenic residues AN - 1447102392; 2013-082641 AB - We studied As, Pb and Sb solid speciation to better understand the geochemical pathways and mobility of these potentially toxic elements, which are released upon weathering of mining and industrial waste products. Such studies are indispensible to understand soil and water contaminations and to propose remediation solutions. Studied samples are mining residues (mill tailings and slags) from the French Massif Central, generated by former activities over a century (1830 to 1970). They were collected at two different mining districts: Pontgibaud, which was one of the largest production site for Ag and Pb (c.a. 50'000 t Pb) and Brioude-Massiac, which produced around 40'000 t of Sb (second largest nationwide production). Samples were also studied to compare the evolution of industrial processes and to test the variations in Pb or Sb retention. Mining residues from the two locations show elevated concentrations in As, Pb and Sb, up to 0.16%, 6.6% and 1.1% respectively. However spatially concentrated accumulations of As (up to 11 wt.%), Pb (up to 70 wt%) and Sb (up to 28 wt.%) are also observed. The mineralogical characterization of the products with such contents is essential for the modeling of the geochemical processes controlling the toxicity of these elements. Arsenic, Pb and Sb have only been detected in secondary products resulting from oxidation of Pb or Sb-rich sulfides (galena, stibnite and berthierite) but only few relics of primary sulfides have been observed. Synchrotron X-ray microdiffraction (beamline 12.3.2, Advanced Light Source, USA) and micro-Raman investigations indicate that Sb forms complex mixing phases with goethite and/or lepidocrocite. Antimony is also trapped by jarosite suggesting a substitution of Fe (super 3+) by Sb (super 5+) (up to 3% Sb). Antimony is present as oxides, stibiconite SbSb (sub 2) O (sub 6) (OH) and associated with Fe, and possibly Mn (oxy-)hydroxides within solid phases of highly heterogenous compositions. Arsenic is also typically associated to iron (oxy-)hydroxides presenting various cristallinity. Main Pb host phases are sulfates (e.g., anglesite Pb(SO (sub 4) ), beudantite Pb(Fe (sub 2.54) A (sub l.46) )(As (sub 1.07) O (sub 4) )(S (sub 0.93) O (sub 4) )(OH) (sub 6) ) but Pb is also associated to complex mixing of silicates and Fe oxides. JF - Mineralogical Magazine AU - Courtin-Nomade, A AU - Rakotoarisoa, O AU - Bril, H AU - Kunz, M AU - Tamura, N AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 699 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - soils KW - antimony KW - risk management KW - Western Europe KW - pollutants KW - arsenic KW - pollution KW - lead KW - Europe KW - ground water KW - solid phase KW - France KW - waste management KW - mitigation KW - toxicity KW - metals KW - industrial waste KW - risk assessment KW - waste disposal KW - Central Massif KW - chemical fractionation KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1447102392?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Solid+speciation+of+As%2C+Pb+and+Sb-rich+anthropogenic+residues&rft.au=Courtin-Nomade%2C+A%3BRakotoarisoa%2C+O%3BBril%2C+H%3BKunz%2C+M%3BTamura%2C+N%3BAnonymous&rft.aulast=Courtin-Nomade&rft.aufirst=A&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=699&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/609.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-10-31 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - antimony; arsenic; Central Massif; chemical fractionation; Europe; France; ground water; industrial waste; lead; metals; mitigation; pollutants; pollution; risk assessment; risk management; soils; solid phase; toxicity; waste disposal; waste management; Western Europe ER - TY - JOUR T1 - Isotopic evidence for microbial oxidation of dissolved methane in the Gulf of Mexico oil spill deep plume AN - 1447100873; 2013-082629 AB - The blowout of BP's Macondo well and subsequent sinking of the Deepwater Horizon drilling platform on April 20, 2010 led to one of the largest oil spills in history. By the time the well was capped on July 12, 2010, approximately 4.9 million barrels of oil are estimated to have leaked into the Gulf of Mexico. Accompanying this spill was the development of a deep plume of dispersed oil and dissolved gases at a depth of 1100-1200 mbsl that was detected at distances of up to 35 km from the wellhead. The delta (super 13) C values of dissolved hydrocarbon gases (C1-C5) and BTEX compounds in 77 samples collected from in and around the deep plume between May 28, 2010 and August 24, 2010 were analyzed to track the fate and potential biodegradation of those compounds. C2 to C5 gases and BTEX compounds were only high enough for delta (super 13) C analyses in samples collected before mid-June. The delta (super 13) C values of these compounds remained within + or -2ppm of delta (super 13) C values of samples from the Macondo well. CH (sub 4) concentrations in early plume samples (collected before mid-June) were as high as 300 mM, but dropped off significantly in later samples. The delta (super 13) C of CH (sub 4) in the early samples were between -57ppm and -59ppm compared to an average delta (super 13) C value of -58ppm for samples from the Macondo reservoir. After mid-June, CH (sub 4) from some of the samples had higher delta (super 13) C values. The last two CH (sub 4) samples with measurable delta (super 13) C values were collected during early August, 3 weeks after the well was capped and had delta (super 13) C values of -44ppm and -23ppm. For a fractionation factor of 0.984 for microbial oxidation of CH (sub 4) , those values indicate 60% and 90% oxidation of the methane, respectively. These samples coincided with drops in the dissolved oxygen concentrations in the water column of approximately 1.5 mM also suggesting increased aerobic microbial activity. In addition, the delta (super 13) C values of bacterial phospholipids extracted from a single sample were lower than normal background biomass, suggesting that the bacteria were consuming CH (sub 4) and other hydrocarbons with lower delta (super 13) C values than the background organic matter. JF - Mineralogical Magazine AU - Conrad, Mark E AU - Bill, Markus AU - Stringfellow, W T AU - Borglin, S E AU - Mason, O U AU - Dubinsky, E A AU - Piceno, Y M AU - Fortney, J L AU - Tom, L M AU - Chavarria, K L AU - Lamendella, R AU - Joyner, D C AU - Wetmore, K AU - Kuehl, J AU - Mackelprang, R AU - Wu, C AU - Lim, J AU - Reid, F AU - Hazen, T C AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 693 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - methane KW - contaminant plumes KW - isotopes KW - isotope ratios KW - biochemistry KW - oxidation KW - C-13/C-12 KW - aliphatic hydrocarbons KW - pollution KW - alkanes KW - Deepwater Horizon oil spill KW - stable isotopes KW - Gulf of Mexico KW - organic compounds KW - marine environment KW - carbon KW - oil spills KW - bacteria KW - hydrocarbons KW - North Atlantic KW - Atlantic Ocean KW - microorganisms KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1447100873?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Isotopic+evidence+for+microbial+oxidation+of+dissolved+methane+in+the+Gulf+of+Mexico+oil+spill+deep+plume&rft.au=Conrad%2C+Mark+E%3BBill%2C+Markus%3BStringfellow%2C+W+T%3BBorglin%2C+S+E%3BMason%2C+O+U%3BDubinsky%2C+E+A%3BPiceno%2C+Y+M%3BFortney%2C+J+L%3BTom%2C+L+M%3BChavarria%2C+K+L%3BLamendella%2C+R%3BJoyner%2C+D+C%3BWetmore%2C+K%3BKuehl%2C+J%3BMackelprang%2C+R%3BWu%2C+C%3BLim%2C+J%3BReid%2C+F%3BHazen%2C+T+C%3BAnonymous&rft.aulast=Conrad&rft.aufirst=Mark&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=693&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/609.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-10-31 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; Atlantic Ocean; bacteria; biochemistry; C-13/C-12; carbon; contaminant plumes; Deepwater Horizon oil spill; Gulf of Mexico; hydrocarbons; isotope ratios; isotopes; marine environment; methane; microorganisms; North Atlantic; oil spills; organic compounds; oxidation; pollution; stable isotopes ER - TY - JOUR T1 - Investigating the effects of hydrologic fluctuations on organic sulfur speciation in boreal peatlands AN - 1447099826; 2013-082619 AB - Sulfur has a complex biogeochemical cycle in peatlands due to its chemical reactivity, wide range of oxidation states, and importance to bacterial metabolism [1]. In sulfur-limited systems sulfate plays a synergistic role in the production of monomethylmercury (MeHg), the bioaccumulative form of mercury [2]. Therefore an understanding of how sulfate is incorporated into and released from peat soils may improve prediction of MeHg production within, and export from, peatlands. Climatic variability can cause large changes in oxidation- reduction potentials within peatlands by influencing the position of the water table. Wetlands are often considered to be sinks in the landscape for sulfate because sulfate inputs to saturated systems are readily consumed by sulfate-reducing bacteria. However, following droughts wetlands have been found to be significant sources of sulfate to downstream aquatic ecosystems [3]. This research compared sulfur speciation in peat from a boreal peatland during and after an historic drought in northern Minnesota. Greater than 95% of sulfur in each peat sample was in an organic form making traditional, wet-chemical sulfur fractionation methods uninformative about a large portion of the total sulfur pool. As an alternative, sulfur speciation in peat was measured at the micron scale by X-ray fluorescence mapping at six incident energies spanning the sulfur 1s absorption edge. Composite maps were fit with reference spectra. X-ray absorption spectroscopy is being used to verify sulfur speciation maps. At naturally occurring sulfur levels, we are able to obtain high quality data. Our goal is to develop a data analysis protocol providing quantitative, spatially resolved sulfur speciation. JF - Mineralogical Magazine AU - Coleman Wasik, J K AU - Toner, B M AU - Engstrom, D R AU - Drevnick, P E AU - Marcus, M A AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 688 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - hydrology KW - peatlands KW - Minnesota KW - terrestrial environment KW - metabolism KW - biochemistry KW - oxidation KW - hydrochemistry KW - boreal environment KW - bioaccumulation KW - mires KW - chemical reactions KW - northern Minnesota KW - bacteria KW - sulfur KW - geochemistry KW - chemical fractionation KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1447099826?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Investigating+the+effects+of+hydrologic+fluctuations+on+organic+sulfur+speciation+in+boreal+peatlands&rft.au=Coleman+Wasik%2C+J+K%3BToner%2C+B+M%3BEngstrom%2C+D+R%3BDrevnick%2C+P+E%3BMarcus%2C+M+A%3BAnonymous&rft.aulast=Coleman+Wasik&rft.aufirst=J&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=688&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/609.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-10-31 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - bacteria; bioaccumulation; biochemistry; boreal environment; chemical fractionation; chemical reactions; geochemistry; hydrochemistry; hydrology; metabolism; Minnesota; mires; northern Minnesota; oxidation; peatlands; sulfur; terrestrial environment; United States ER - TY - JOUR T1 - Physicochemical controls on adsorbed water film thicknesses in unsaturated porous media AN - 1434007428; 2013-071457 JF - Mineralogical Magazine AU - Tokunaga, Tetsu K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2019 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - soils KW - physicochemical properties KW - porous materials KW - petroleum KW - adsorption KW - hydrochemistry KW - geochemistry KW - mineral surface KW - carbon dioxide KW - 02B:Hydrochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1434007428?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Physicochemical+controls+on+adsorbed+water+film+thicknesses+in+unsaturated+porous+media&rft.au=Tokunaga%2C+Tetsu+K%3BAnonymous&rft.aulast=Tokunaga&rft.aufirst=Tetsu&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2019&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1979.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Number of references - 3 N1 - Last updated - 2013-09-20 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - adsorption; carbon dioxide; geochemistry; hydrochemistry; mineral surface; petroleum; physicochemical properties; porous materials; soils ER - TY - JOUR T1 - Using ambient pressure X-ray photoelectron spectroscopy to investigate the reduction of c(2x2)-O/Ni(100) by hydrogen AN - 1371766326; 2013-048911 AB - X-ray Photoelectron Spectroscopy (XPS) is a powerful tool for the chemical analysis of surfaces. Typically XPS measurments are performed under ultra-high vacuum conditions, which are far removed from many environmental or technologically relevant conditions. The development of synchrotron based Ambient Pressure XPS (AP-XPS) that incorporates a differentially pumped electrostatic lens system into the electron energy analyzer has made possible XPS measurments at pressure up to about 5 Torr. In this presentation, after a brief introduction to the AP-XPS technique, results using AP-XPS to investigate the reduction of a chemisorbed oxygen layer on Ni (100) by hydrogen will be discussed. Among transition metal oxides, NiO has been the focus of extensive fundamental studies due to its applications in catalysis and potential magnetic devices. The reduction of NiO has been studied at elevated pressure conditions using a broad range of techniques including X-ray Diffraction [1], and Near Edge X-ray Absorbtion Spectroscopy [2] among others. Relatively unexplored is the reduction of chemisorbed oxygen on the surfaces of Ni single crystals at elevated pressures. We have investigated the reduction of the c (2X2)-O chemisorbed layer on Ni (100) using AP-XPS at temperatures from 100 degrees C to 150 degrees C and pressures up to 0.5 Torr. The presence of small NiO clusters, located at step edges as shown by scanning tunneling microscopy, have a significant impact on the reduction kinetics of the c (2X2)-O layer. These clusters are preferentially reduced compared to the c (2X2)-O layer and increase the reduction rate of the c (2X2)-O layer, quite likely from spill-over of dissociated hydrogen from the NiO islands. JF - Mineralogical Magazine AU - Muller, Kathrin AU - Shavorskiy, Andery AU - Bluhm, Hendrik AU - Starr, David AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1510 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - laboratory studies KW - experimental studies KW - X-ray photoelectron spectroscopy KW - dissociation KW - pressure KW - oxygen KW - hydrogen KW - spectroscopy KW - temperature KW - P-T conditions KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371766326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Using+ambient+pressure+X-ray+photoelectron+spectroscopy+to+investigate+the+reduction+of+c%282x2%29-O%2FNi%28100%29+by+hydrogen&rft.au=Muller%2C+Kathrin%3BShavorskiy%2C+Andery%3BBluhm%2C+Hendrik%3BStarr%2C+David%3BAnonymous&rft.aulast=Muller&rft.aufirst=Kathrin&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1510&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1374.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Number of references - 2 N1 - Last updated - 2013-06-27 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - dissociation; experimental studies; hydrogen; laboratory studies; oxygen; P-T conditions; pressure; spectroscopy; temperature; X-ray photoelectron spectroscopy ER - TY - JOUR T1 - Direct pore-scale numerical simulation of precipitation and dissolution AN - 1371766054; 2013-048864 AB - Mineral precipitation and dissolution driven by field applications such as carbon sequestration or remediation strategies can modify the geometry and structure of porous media in relatively short time scales. In this context, feedback processes between geochemical reactions and flow that take place at the pore scale affect continuum scale parameters such as permeability or reaction rates. Beyond the insights gained by innovative experimental and imaging techniques such as x-ray computed micro-tomography, modeling provides a unique tool to mechanistically understand and quantify these feedback processes at the pore scale and inform continuum scale models. In this work, we develop strategies to perform efficient direct numerical simulation of flow and reactive transport on idealized and complex pore scale geometries building on existing platforms. We apply these approaches to a range of pore geometries from single pores to 1-cm-long columns to calculate average reactions rates and porosity-permeability evolution and illustrate model capabilities and limitations. Simulations show that dissolution and precipitation reactions affect the pore space nonuniformly. As a result, a simple porosity-permeability correlation may be insufficient to describe the complexity of the reaction-induced pore space evolution. The relative magnitude of the reaction rate constants affects the evolution of the permeability-porosity relationship. In dissolution simulations, fast reactions result in localized effects and further evolution of permeability is relatively unaffected by subsequent porosity increase. In contrast, slow reactions cause a less localized dissolution, with the result that the permeability increase is consistent with the porosity increment. Simulations show that in columns with the same average parameters, including column porosity, reactive surface area, and flow rate, different pore structures with different flow patterns can result in different average reactions rates. Sequential coupling between transport and geochemical reactions allowed us to use an efficient and flexible computational fluid dynamics platform that implements higher-order algorithms, while implicit coupling shows promising results for efficient simulation of pore geometry evolution. We discuss further model development for interpretation of experimental results. JF - Mineralogical Magazine AU - Molins, S AU - Silin, D B AU - Trebotich, D AU - Steefel, C I AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1487 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - carbon sequestration KW - numerical models KW - data processing KW - pollution KW - coupling KW - fluid dynamics KW - solution KW - porosity KW - remediation KW - feedback KW - chemical reactions KW - precipitation KW - digital simulation KW - theoretical models KW - applications KW - geochemistry KW - permeability KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371766054?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Direct+pore-scale+numerical+simulation+of+precipitation+and+dissolution&rft.au=Molins%2C+S%3BSilin%2C+D+B%3BTrebotich%2C+D%3BSteefel%2C+C+I%3BAnonymous&rft.aulast=Molins&rft.aufirst=S&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1487&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1374.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2013-01-01 N1 - Last updated - 2013-06-27 N1 - CODEN - MNLMBB N1 - SubjectsTermNotLitGenreText - applications; carbon sequestration; chemical reactions; coupling; data processing; digital simulation; feedback; fluid dynamics; geochemistry; numerical models; permeability; pollution; porosity; precipitation; remediation; solution; theoretical models ER - TY - JOUR T1 - Laboratory experiments bearing on the origin and evolution of olivine-rich chondrules AN - 1287375033; 2013-017924 AB - Evaporation rates of K (sub 2) O, Na (sub 2) O, and FeO from chondrule-like liquids and the associated potassium isotopic fractionation of the evaporation residues were measured to help understand the processes and conditions that affected the chemical and isotopic compositions of olivine-rich type IA and type IIA chondrules from Semarkona. Both types of chondrules show evidence of having been significantly or totally molten. However, these chondrules do not have large or systematic potassium isotopic fractionation of the sort found in the laboratory evaporation experiments. The experimental results reported here provide new data regarding the evaporation kinetics of sodium and potassium from a chondrule-like melt and the potassium isotopic fractionation of evaporation residues run under various conditions ranging from high vacuum to pressures of one bar of H (sub 2) +CO (sub 2) , or H (sub 2) , or helium. The lack of systematic isotopic fractionation of potassium in the type IIA and type IA chondrules compared with what is found in the vacuum and one-bar evaporation residues is interpreted as indicating that they evolved in a partially closed system where the residence time of the surrounding gas was sufficiently long for it to have become saturated in the evaporating species and for isotopic equilibration between the gas and the melt. A diffusion couple experiment juxtaposing chondrule-like melts with different potassium concentrations showed that the diffusivity of potassium is sufficiently fast at liquidus temperatures (DK > 2 X 10 (super -4) cm (super 2) s (super -1) at 1650 degrees C) that diffusion-limited evaporation cannot explain why, despite their having been molten, the type IIA and type IA chondrules show no systematic potassium isotopic fractionation. JF - Meteoritics & Planetary Science AU - Richter, Frank M AU - Mendybaev, Ruslan A AU - Christensen, John N AU - Ebel, Denton S AU - Gaffney, Amy Y1 - 2011 PY - 2011 DA - 2011 SP - 1152 EP - 1178 PB - Meteoritical Society, Fayetteville, AR VL - 46 IS - 8 SN - 1086-9379, 1086-9379 KW - silicates KW - isotope fractionation KW - ordinary chondrites KW - stony meteorites KW - olivine group KW - melts KW - iron KW - Semarkona Meteorite KW - meteorites KW - laboratory studies KW - olivine KW - orthosilicates KW - chondrites KW - chemical composition KW - diffusivity KW - experimental studies KW - diffusion KW - alkali metals KW - LL chondrites KW - rates KW - sodium KW - nesosilicates KW - evaporation KW - metals KW - chondrules KW - potassium KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287375033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Laboratory+experiments+bearing+on+the+origin+and+evolution+of+olivine-rich+chondrules&rft.au=Richter%2C+Frank+M%3BMendybaev%2C+Ruslan+A%3BChristensen%2C+John+N%3BEbel%2C+Denton+S%3BGaffney%2C+Amy&rft.aulast=Richter&rft.aufirst=Frank&rft.date=2011-01-01&rft.volume=46&rft.issue=8&rft.spage=1152&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2011.01220.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 57 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2013-02-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - alkali metals; chemical composition; chondrites; chondrules; diffusion; diffusivity; evaporation; experimental studies; iron; isotope fractionation; laboratory studies; LL chondrites; melts; metals; meteorites; nesosilicates; olivine; olivine group; ordinary chondrites; orthosilicates; potassium; rates; Semarkona Meteorite; silicates; sodium; stony meteorites DO - http://dx.doi.org/10.1111/j.1945-5100.2011.01220.x ER - TY - JOUR T1 - On the propagation of a quasi-static disturbance in a heterogeneous, deformable, and porous medium with pressure-dependent properties AN - 1282823813; 2013-014947 AB - Using an asymptotic technique, valid when the medium properties are smoothly varying, I derive a semianalytic expression for the propagation velocity of a quasi-static disturbance traveling within a nonlinear-elastic porous medium. The phase, a function related to the propagation time, depends upon the properties of the medium, including the pressure sensitivities of the medium parameters, and on pressure and displacement amplitude changes. Thus, the propagation velocity of a disturbance depends upon its amplitude, as might be expected for a nonlinear process. As a check, the expression for the phase function is evaluated for a poroelastic medium when the material properties do not depend upon the fluid pressure. In that case, the travel time estimates agree with conventional analytic estimates and with values calculated using a numerical simulator. For a medium with pressure-dependent permeability I find general agreement between the semianalytic estimates and estimates from a numerical simulation. In this case the pressure amplitude changes are obtained from the numerical simulator. JF - Water Resources Research AU - Vasco, D W Y1 - 2011 PY - 2011 DA - 2011 EP - Citation W12523 PB - American Geophysical Union, Washington, DC VL - 47 IS - 12 SN - 0043-1397, 0043-1397 KW - shock waves KW - elasticity KW - numerical models KW - poroelasticity KW - nonlinear materials KW - data processing KW - porous materials KW - mathematical models KW - equations KW - deformation KW - ground water KW - theoretical studies KW - heterogeneous materials KW - fluid pressure KW - pore pressure KW - digital simulation KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1282823813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=On+the+propagation+of+a+quasi-static+disturbance+in+a+heterogeneous%2C+deformable%2C+and+porous+medium+with+pressure-dependent+properties&rft.au=Vasco%2C+D+W&rft.aulast=Vasco&rft.aufirst=D&rft.date=2011-01-01&rft.volume=47&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2011WR011373 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 93 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2013-02-05 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - data processing; deformation; digital simulation; elasticity; equations; fluid pressure; ground water; heterogeneous materials; mathematical models; nonlinear materials; numerical models; pore pressure; poroelasticity; porous materials; shock waves; theoretical studies DO - http://dx.doi.org/10.1029/2011WR011373 ER - TY - JOUR T1 - Coupled modeling of hydrogeochemical and electrical resistivity data for exploring the impact of recharge on subsurface contamination AN - 1282823375; 2013-012701 AB - The application of geophysical methods, in particular, electrical resistivity measurements, may be useful for monitoring subsurface contamination. However, interpreting geophysical data without additional data and without considering the associated hydrogeochemical processes is challenging since the geophysical response is sensitive to not only heterogeneity in rock properties but also to the saturation and chemical composition of pore fluids. We present an inverse modeling framework that incorporates the simulation of hydrogeochemical processes and time-lapse electrical resistivity data and apply it to various borehole and cross-borehole data sets collected in 2008 near the S-3 Ponds at the U.S. Department of Energy's Oak Ridge Integrated Field Research Challenge site, where efforts are underway to better understand freshwater recharge and associated contaminant dilution. Our goal is to show that the coupled hydrogeochemical-geophysical modeling framework can be used to (1) develop a model that honors all the available data sets, (2) help understand the response of the geophysical data to subsurface properties and processes at the site, and (3) allow for the estimation of petrophysical parameters needed for interpreting the geophysical data. We present a series of cases involving different data sets and increasingly complex models and find that the approach provides useful information about soil properties, recharge-related transport processes, and the geophysical response. Spatial heterogeneity of the petrophysical model can be described sufficiently with two layers, and its parameters can be estimated concurrently with the hydrogeochemical parameters. For successful application of the approach, the parameters of interest must be sensitive to the available data, and the experimental conditions must be carefully modeled. JF - Water Resources Research AU - Kowalsky, M B AU - Gasperikova, E AU - Finsterle, S AU - Watson, D AU - Baker, G AU - Hubbard, S S Y1 - 2011 PY - 2011 DA - 2011 EP - Citation W02509 PB - American Geophysical Union, Washington, DC VL - 47 IS - 2 SN - 0043-1397, 0043-1397 KW - United States KW - Oak Ridge National Laboratory KW - electrical properties KW - crosshole methods KW - geophysical methods KW - electrical methods KW - pollution KW - resistivity KW - hydrochemistry KW - ground water KW - ponds KW - recharge KW - boreholes KW - Tennessee KW - water pollution KW - geochemistry KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1282823375?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Coupled+modeling+of+hydrogeochemical+and+electrical+resistivity+data+for+exploring+the+impact+of+recharge+on+subsurface+contamination&rft.au=Kowalsky%2C+M+B%3BGasperikova%2C+E%3BFinsterle%2C+S%3BWatson%2C+D%3BBaker%2C+G%3BHubbard%2C+S+S&rft.aulast=Kowalsky&rft.aufirst=M&rft.date=2011-01-01&rft.volume=47&rft.issue=2&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2009WR008947 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2013-02-05 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - boreholes; crosshole methods; electrical methods; electrical properties; geochemistry; geophysical methods; ground water; hydrochemistry; Oak Ridge National Laboratory; pollution; ponds; recharge; resistivity; Tennessee; United States; water pollution DO - http://dx.doi.org/10.1029/2009WR008947 ER - TY - JOUR T1 - Climate-CH (sub 4) feedback from wetlands and its interaction with the climate-CO (sub 2) feedback AN - 1270041084; 2013-011340 AB - The existence of a feedback between climate and methane (CH (sub 4) ) emissions from wetlands has previously been hypothesized, but both its sign and amplitude remain unknown. Moreover, this feedback could interact with the climate-CO (sub 2) cycle feedback, which has not yet been accounted for at the global scale. These interactions relate to (i) the effect of atmospheric CO (sub 2) on methanogenic substrates by virtue of its fertilizing effect on plant productivity and (ii) the fact that a climate perturbation due to CO (sub 2) (respectively CH (sub 4) ) radiative forcing has an effect on wetland CH (sub 4) emissions (respectively CO (sub 2) fluxes at the surface/atmosphere interface). We present a theoretical analysis of these interactions, which makes it possible to express the magnitude of the feedback for CO (sub 2) and CH (sub 4) alone, the additional gain due to interactions between these two feedbacks and the effects of these feedbacks on the difference in atmospheric CH (sub 4) and CO (sub 2) between 2100 and pre-industrial time (respectively Delta CH (sub 4) and Delta CO (sub 2) ). These gains are expressed as functions of different sensitivity terms, which we estimate based on prior studies and from experiments performed with the global terrestrial vegetation model ORCHIDEE. Despite high uncertainties on the sensitivity of wetland CH (sub 4) emissions to climate, we found that the absolute value of the gain of the climate-CH (sub 4) feedback from wetlands is relatively low (<30% of climate-CO (sub 2) feedback gain), with either negative or positive sign within the range of estimates. Whereas the interactions between the two feedbacks have low influence on Delta CO (sub 2) , the Delta CH (sub 4) could increase by 475 to 1400 ppb based on the sign of the C-CH (sub 4) feedback gain. Our study suggests that it is necessary to better constrain the evolution of wetland area under future climate change as well as the local coupling through methanogenesis substrate of the carbon and CH (sub 4) cycles--in particular the magnitude of the CO (sub 2) fertilization effect on the wetland CH (sub 4) emissions--as these are the dominant sources of uncertainty in our model. JF - Biogeosciences AU - Ringeval, Bruno AU - Friedlingstein, Pierre AU - Koven, C AU - Ciais, P AU - de Noblet-Ducoudre, Nathalie AU - Decharme, Bertrand AU - Cadule, Patricia Y1 - 2011 PY - 2011 DA - 2011 SP - 2137 EP - 2157 PB - Copernicus GmbH on behalf of the European Union, Katlenburg-Lindau VL - 8 IS - 8 SN - 1726-4170, 1726-4170 KW - respiration KW - photosynthesis KW - ORCHIDEE KW - degradation KW - sinks KW - aliphatic hydrocarbons KW - solar forcing KW - global change KW - vegetation KW - simulation KW - climate change KW - temperature KW - carbon dioxide KW - chemical reactions KW - transport KW - sensitivity analysis KW - carbon KW - climate effects KW - discharge KW - climate forcing KW - productivity KW - global warming KW - soils KW - Plantae KW - methane KW - human activity KW - photochemistry KW - atmosphere KW - alkanes KW - models KW - organic compounds KW - fertilization KW - wetlands KW - atmospheric transport KW - biosphere KW - hydrocarbons KW - anaerobic environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270041084?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biogeosciences&rft.atitle=Climate-CH+%28sub+4%29+feedback+from+wetlands+and+its+interaction+with+the+climate-CO+%28sub+2%29+feedback&rft.au=Ringeval%2C+Bruno%3BFriedlingstein%2C+Pierre%3BKoven%2C+C%3BCiais%2C+P%3Bde+Noblet-Ducoudre%2C+Nathalie%3BDecharme%2C+Bertrand%3BCadule%2C+Patricia&rft.aulast=Ringeval&rft.aufirst=Bruno&rft.date=2011-01-01&rft.volume=8&rft.issue=8&rft.spage=2137&rft.isbn=&rft.btitle=&rft.title=Biogeosciences&rft.issn=17264170&rft_id=info:doi/ L2 - http://www.biogeosciences.net/8/2137/2011/bg-8-2137-2011.pdf www.copernicus.org/EGU/bg.bg.html LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany N1 - Date revised - 2013-01-01 N1 - Number of references - 68 N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices; published in Biogeosciences Discussion: 23 March 2011, http://www.biogeosciences-discuss.net/8/3203/2011/bgd-8-3203-2011.html; accessed in Aug., 2012 N1 - Last updated - 2013-04-19 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; anaerobic environment; atmosphere; atmospheric transport; biosphere; carbon; carbon dioxide; chemical reactions; climate change; climate effects; climate forcing; degradation; discharge; fertilization; global change; global warming; human activity; hydrocarbons; methane; models; ORCHIDEE; organic compounds; photochemistry; photosynthesis; Plantae; productivity; respiration; sensitivity analysis; simulation; sinks; soils; solar forcing; temperature; transport; vegetation; wetlands ER - TY - JOUR T1 - Microtomography and pore-scale modeling of two-phase fluid distribution AN - 1270036986; 2013-008918 AB - Synchrotron-based X-ray microtomography (micro CT) at the Advanced Light Source (ALS) line 8.3.2 at the Lawrence Berkeley National Laboratory produces three-dimensional micron-scale-resolution digital images of the pore space of the reservoir rock along with the spacial distribution of the fluids. Pore-scale visualization of carbon dioxide flooding experiments performed at a reservoir pressure demonstrates that the injected gas fills some pores and pore clusters, and entirely bypasses the others. Using 3D digital images of the pore space as input data, the method of maximal inscribed spheres (MIS) predicts two-phase fluid distribution in capillary equilibrium. Verification against the tomography images shows a good agreement between the computed fluid distribution in the pores and the experimental data. The model-predicted capillary pressure curves and tomography-based porosimetry distributions compared favorably with the mercury injection data. Thus, micro CT in combination with modeling based on the MIS is a viable approach to study the pore-scale mechanisms of CO (sub 2) injection into an aquifer, as well as more general multi-phase flows. Copyright 2011 Springer Science+Business Media B.V. and 2010 The Author(s) JF - Transport in Porous Media AU - Silin, Dmitriy AU - Tomutsa, Liviu AU - Benson, Sally M AU - Patzek, Tad W Y1 - 2011/01// PY - 2011 DA - January 2011 SP - 495 EP - 515 PB - Springer, Dordrecht VL - 86 IS - 2 SN - 0169-3913, 0169-3913 KW - tomography KW - petroleum engineering KW - imagery KW - capillary pressure KW - sandstone KW - petroleum KW - fluid dynamics KW - rock mechanics KW - reservoir rocks KW - carbon dioxide KW - visualization KW - spatial distribution KW - sedimentary rocks KW - thermodynamic properties KW - two-phase models KW - gas-water interface KW - three-dimensional models KW - porous materials KW - capillarity KW - porosity KW - models KW - brines KW - synchrotrons KW - reservoir properties KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270036986?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Microtomography+and+pore-scale+modeling+of+two-phase+fluid+distribution&rft.au=Silin%2C+Dmitriy%3BTomutsa%2C+Liviu%3BBenson%2C+Sally+M%3BPatzek%2C+Tad+W&rft.aulast=Silin&rft.aufirst=Dmitriy&rft.date=2011-01-01&rft.volume=86&rft.issue=2&rft.spage=495&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9636-2 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2013-01-01 N1 - Number of references - 57 N1 - Document feature - illus. N1 - Last updated - 2013-01-17 N1 - SubjectsTermNotLitGenreText - brines; capillarity; capillary pressure; carbon dioxide; clastic rocks; fluid dynamics; gas-water interface; imagery; models; petroleum; petroleum engineering; porosity; porous materials; reservoir properties; reservoir rocks; rock mechanics; sandstone; sedimentary rocks; spatial distribution; synchrotrons; thermodynamic properties; three-dimensional models; tomography; two-phase models; visualization DO - http://dx.doi.org/10.1007/s11242-010-9636-2 ER - TY - JOUR T1 - Comparative assessment of status and opportunities for carbon dioxide capture and storage and radioactive waste disposal in North America AN - 1208397815; 655812-9 JF - Advances in Global Change Research AU - Oldenburg, Curtis M AU - Birkholzer, Jens T Y1 - 2011 PY - 2011 DA - 2011 SP - 367 EP - 393 PB - Springer, Dordrecht VL - 44 SN - 1574-0919, 1574-0919 KW - United States KW - Canada KW - underground storage KW - public policy KW - philosophy KW - underground installations KW - policy KW - waste disposal KW - underground disposal KW - radioactive waste KW - carbon dioxide KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1208397815?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Global+Change+Research&rft.atitle=Comparative+assessment+of+status+and+opportunities+for+carbon+dioxide+capture+and+storage+and+radioactive+waste+disposal+in+North+America&rft.au=Oldenburg%2C+Curtis+M%3BBirkholzer%2C+Jens+T&rft.aulast=Oldenburg&rft.aufirst=Curtis&rft.date=2011-01-01&rft.volume=44&rft.issue=&rft.spage=367&rft.isbn=9789048187119&rft.btitle=&rft.title=Advances+in+Global+Change+Research&rft.issn=15740919&rft_id=info:doi/10.1007%2F978-90-481-8712-6_13 LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Number of references - 48 N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - Canada; carbon dioxide; philosophy; policy; public policy; radioactive waste; underground disposal; underground installations; underground storage; United States; waste disposal DO - http://dx.doi.org/10.1007/978-90-481-8712-6_13 ER - TY - JOUR T1 - Extracellular electron transport by the Gram-positive species Thermincola potens AN - 1151915682; 2012-096759 AB - Despite their importance in iron redox cycles and bioenergy production, the underlying physiological, biochemical, and genetic mechanisms of extracellular electron transfer by Gram-positive bacteria remain insufficiently understood. We investigated respiration by Thermincola potens strain JR of the insoluble electron acceptors Fe(III) oxyhydroxide and anode surface. This isolate, a member of the Firmicutes, was obtained from the anode surface of a microbial fuel cell [1]. We found no evidence for soluble redox-active components secreted into the surrounding medium based on cyclic voltammetry measurements in conjunction with medium replacement experiments. Confocal microscopy revealed highly stratified biofilms in which cells contacting the electrode surface were disproportionately viable relative to the rest of the biofilm. There was also no correlation between biofilm thickness and power production, suggesting cells in contact with the electrode were primarily responsible for current generation. These data, along with cryo-electron microscopy experiments, support contact-dependent electron transfer by T. potens strain JR from the cell membrane across the 37 nm cell envelope to the cell surface. Furthermore, we present physiological and genomic evidence that direct extracellular electron transfer is mediated by c-type cytochromes. Taken together, our findings provide the first evidence to implicate direct extracellular electron transfer by Gram-positive bacteria and identify c-type cytochromes as a potential molecular conduit for charge transport. JF - Mineralogical Magazine AU - Wrighton, K AU - Carlson, H AU - Melnyk, R AU - Byrne-Bailey, K AU - Thrash, J AU - Bigi, J AU - Remis, J AU - Schichnes, D AU - Auer, M AU - Chang, C AU - Coates, J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2180 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - experimental studies KW - voltammetry KW - Gram-positive bacteria KW - biochemistry KW - electron microscopy data KW - genome KW - laboratory studies KW - Thermincola KW - physiology KW - biofilms KW - bacteria KW - geochemistry KW - electrons KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151915682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Extracellular+electron+transport+by+the+Gram-positive+species+Thermincola+potens&rft.au=Wrighton%2C+K%3BCarlson%2C+H%3BMelnyk%2C+R%3BByrne-Bailey%2C+K%3BThrash%2C+J%3BBigi%2C+J%3BRemis%2C+J%3BSchichnes%2C+D%3BAuer%2C+M%3BChang%2C+C%3BCoates%2C+J%3BAnonymous&rft.aulast=Wrighton&rft.aufirst=K&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2180&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2106.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; biofilms; electron microscopy data; electrons; experimental studies; genome; geochemistry; Gram-positive bacteria; laboratory studies; physiology; Thermincola; voltammetry ER - TY - JOUR T1 - High-resolution metabolomics reveals unusual N-methyl lyso phosphatidylethanolamines as abundant and strain-specific lipids in acid mine drainage biofilms AN - 1151913030; 2012-096729 AB - High-resolution untargeted metabolomics was applied to 14 distinct biofilm samples retrieved from the air-solution interface of acid mine drainage (AMD) solutions within the Richmond Mine (Iron Mountain, Redding, CA). Among the detected metabolites, we identified and characterized a group of lyso phosphatidylethanolamine lipids which were highly abundant. The unusual polar head group structure of these molecules is similar to lipids found in phylogenetically unrelated acidophilic chemoautolithotrophs and may be related to the affinity of these lipids for iron and calcium ions. Correlations of lyso phospholipid and strain-resolved protein abundance patterns suggest a link between the lyso phospholipids and the UBA-type substrain of Leptospirillum group II. By combining high-resolution molecular "omic" technologies, we demonstrat Focusing of upward fluid migration due to mineral grain size variation e the ability to identify cryptic but organism-specific small molecules that may be of paramount importance to biogeochemical processes occurring in mining impacted environments. JF - Mineralogical Magazine AU - Wilmes, P AU - Fischer, C R AU - Bowen, B P AU - Thomas, B C AU - Mueller, R S AU - Denef, V J AU - Verberkmoes, N C AU - Hettich, R L AU - Northen, T R AU - Banfield, J F AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2165 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - metabolites KW - Iron Mountain KW - high-resolution methods KW - affinities KW - acid mine drainage KW - lipids KW - biochemistry KW - grain size KW - pollution KW - molecular structure KW - California KW - Redding California KW - organic compounds KW - identification KW - Richmond Mine KW - biofilms KW - Shasta County California KW - proteins KW - geochemistry KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151913030?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=High-resolution+metabolomics+reveals+unusual+N-methyl+lyso+phosphatidylethanolamines+as+abundant+and+strain-specific+lipids+in+acid+mine+drainage+biofilms&rft.au=Wilmes%2C+P%3BFischer%2C+C+R%3BBowen%2C+B+P%3BThomas%2C+B+C%3BMueller%2C+R+S%3BDenef%2C+V+J%3BVerberkmoes%2C+N+C%3BHettich%2C+R+L%3BNorthen%2C+T+R%3BBanfield%2C+J+F%3BAnonymous&rft.aulast=Wilmes&rft.aufirst=P&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2165&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2106.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - acid mine drainage; affinities; biochemistry; biofilms; California; geochemistry; grain size; high-resolution methods; identification; Iron Mountain; lipids; metabolites; molecular structure; organic compounds; pollution; proteins; Redding California; Richmond Mine; Shasta County California; United States ER - TY - JOUR T1 - Characterization of elemental sulfur reducing bacteria using transmission electron microscopy and their impact on sulfur isotope fractionation AN - 1151912957; 2012-096726 AB - The process of elemental sulfur (S (super 0) ) reduction by a microorganism isolated from an acetate-stimulated aquifer at the Department of Energy's Rifle Integrated Field Research Challenge (IFRC) site in Rifle, Colorado (USA) was studied using a combination of transmission electron microscopy (TEM) and isotopic techniques. Results were compared to those obtained using the well-characterized S (super 0) reducer Geobacter sulfurreducens. The site isolate was obtained from Rifle groundwater using acetate and S (super 0) flowers as the electron donor and acceptor, respectively. Based on 16S rRNA analysis, the isolate was most closely related to the b-proteobacterium Azospira orzyae (syn Dechlorosoma suillum). TEM revealed the isolate to be a curved rod with a single polar flagellum. Finely particulate S (super 0) granules (<5nm) were observed along the outer membrane as aqueous sulfide concentrations reached peak values of ca. 1200mu M. Prolonged growth resulted in an abundance of aggregated filaments bound within a sulfur-rich matrix; their biogenesis and relation to cell growth remains unknown. Microbial reduction of S (super 0) coupled to oxidation of acetate may lead to significant deviations in the d (super 34) S values of sulfide relative to d (super 34) S values of S (super 0) . Such studies are critical for understanding the process of sulfur reduction in reduced environments, hypothesized to enable prolonged U(VI) immobilization at the Rifle IFRC site. Research at the site has identified significant accumulation of S (super 0) accompanying oxidation of aqueous sulfide by Fe(III)-oxide minerals, with the process generating an abundant electron acceptor capable of supporting the activity strains implicated in enzymatic U(VI) reduction (e.g. Geobacter) following exhaustion of reactive Fe(III) minerals. These results will enable incorporation of rates of microbial S (super 0) reduction and d (super 34) S fractionation within reactive transport models describing biogeochemical processes at the Rifle site and provide additional insights into sulfur cycling pathways. JF - Mineralogical Magazine AU - Williams, Kenneth H AU - Wilkins, Michael J AU - Dohnalkova, Alice C AU - Druhan, Jennifer L AU - Conrad, Mark E AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2163 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - isotope fractionation KW - experimental studies KW - Geobacter KW - Garfield County Colorado KW - isotopes KW - isotope ratios KW - characterization KW - TEM data KW - stable isotopes KW - ground water KW - aquifers KW - Rifle Colorado KW - biogenic processes KW - nucleic acids KW - S-34/S-32 KW - RNA KW - bacteria KW - sulfur KW - reduction KW - Colorado KW - geochemistry KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1151912957?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Characterization+of+elemental+sulfur+reducing+bacteria+using+transmission+electron+microscopy+and+their+impact+on+sulfur+isotope+fractionation&rft.au=Williams%2C+Kenneth+H%3BWilkins%2C+Michael+J%3BDohnalkova%2C+Alice+C%3BDruhan%2C+Jennifer+L%3BConrad%2C+Mark+E%3BAnonymous&rft.aulast=Williams&rft.aufirst=Kenneth&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2163&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2106.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-15 N1 - SubjectsTermNotLitGenreText - aquifers; bacteria; biogenic processes; characterization; Colorado; experimental studies; Garfield County Colorado; Geobacter; geochemistry; ground water; isotope fractionation; isotope ratios; isotopes; nucleic acids; reduction; Rifle Colorado; RNA; S-34/S-32; stable isotopes; sulfur; TEM data; United States ER - TY - JOUR T1 - Fe(II) exchange at titanomagnetite-water interfaces AN - 1124740962; 2012-093596 AB - Spinel-type iron oxides such as magnetite are an important source of solid-state Fe (II) that can affect the transport of redox-active contaminants, such as (super 99) Tc (VII), in the subsurface. Natural magnetites present in sediments are typically highly impure with titanium, and structural Fe (III) replacement by Ti (IV) yields a proportional increase in the relative Fe (II) content in the metal sublattice to maintain bulk charge neutrality. Titanomagnetite (Fe (sub 3-x) Ti (sub x) O (sub 4) ) nanoparticles provide a high surface area pristine material for batch studies to evaluate the availability and reactivity of Fe (II) at the mineral surface. Fe (sub 3-x) Ti (sub x) O (sub 4) nanoparticles accept structural Ti (IV) into the octahedral metal sublattice up to x = 0.4; higher values up to x = 0.6 yield discrete amorphous Fe (II)/Ti (IV) phases on particle exteriors. In aqueous suspension, there is a net driving force for the movement of Fe (II) from the bulk Fe (sub 3-x) Ti (sub x) O (sub 4) structure to the nanoparticle surface with subsequent release of Fe (II) into solution to reach an equilibrium distribution between interior structural Fe (II)/Fe (III), near-surface Fe (II)/Fe (III), and aqueous Fe (II). Consumption of structural Fe (II) through both dissolution and redox reactions results in the replacement of octahedral cations with vacancies to form an Fe (II)-deficient titanomaghemitized surface. Spontaneous Fe (II) release from the solid into solution increases in extent systematically with both Ti-content and decreasing pH. The presence of Tc (VII) in solution, as an electron accepting probe molecule, also increases this driving force as Fe (II) at the surface reacts with the Tc (VII) to form of a mixed Fe (III)-Tc (IV) co-precipitate. In principle, this titanomaghemitization process is reversible and, under reducing conditions, structural reducing equivalents can be restored by an external Fe (II) source. Pre-oxidized Fe (sub 3-x) Ti (sub x) O (sub 4) nanoparticles were found to be systematically restorable to Tc (VII) reduction rate behavior of pristine titanomagnetites by exposure to various concentrations of aqueous Fe (II). The findings demonstrate that the reactive structural Fe (II) pool can be resupplied in these Fe (sub 3-x) Ti (sub x) O (sub 4) phases and suggest that the mechanism involves facile coupled electron/ion transport across the mineral-water interface. JF - Mineralogical Magazine AU - Pearce, Carolyn I AU - Liu, J AU - Qafoku, O AU - Arenholz, E AU - Heald, S M AU - Rosso, K M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1609 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - technetium KW - experimental studies KW - isotopes KW - pollutants KW - pollution KW - mineral-water interface KW - crystal structure KW - Tc-99 KW - iron KW - titanomagnetite KW - radioactive waste KW - ferrous iron KW - laboratory studies KW - radioactive isotopes KW - metals KW - oxides KW - waste disposal KW - crystal chemistry KW - nanoparticles KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1124740962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Fe%28II%29+exchange+at+titanomagnetite-water+interfaces&rft.au=Pearce%2C+Carolyn+I%3BLiu%2C+J%3BQafoku%2C+O%3BArenholz%2C+E%3BHeald%2C+S+M%3BRosso%2C+K+M%3BAnonymous&rft.aulast=Pearce&rft.aufirst=Carolyn&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1609&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1584.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt 2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-11-01 N1 - SubjectsTermNotLitGenreText - crystal chemistry; crystal structure; experimental studies; ferrous iron; iron; isotopes; laboratory studies; metals; mineral-water interface; nanoparticles; oxides; pollutants; pollution; radioactive isotopes; radioactive waste; Tc-99; technetium; titanomagnetite; waste disposal ER - TY - JOUR T1 - Estimating marine resource use by the American crocodile Crocodylus acutus in southern Florida, USA AN - 1113223115; 17248372 AB - Alligators and crocodiles differ in their physiological capacity to live in saline waters. Crocodiles can tolerate high-salinity water, at least for limited timeframes, whereas alligators and their close relatives cannot. Experiments have placed different crocodylians in various water salinities to document physiological responses, but no study has estimated the extent to which natural populations of crocodylids can live independent of fresh water. Here we estimated marine food and perhaps seawater contributions to a population of American crocodile Crocodylus acutus in southernmost Florida, USA. We evaluated the use of carbon, oxygen, and strontium isotopes as tracers of marine versus terrestrial sources. We compared C. acutus isotopic values to those of marine reptiles (marine iguanas and Pacific loggerhead turtles) and to American alligators, which require fresh water. We found that freshwater reptiles can be discriminated from those that drink seawater (or survive on metabolic and prey-included water in saline habitats) based on the magnitude of population-level oxygen isotope variation in bioapatite, whereas mean carbon isotope values discriminate between marine versus terrestrial food consumption. We used a 2 end-ASHmember (seawater and fresh water) mixing model to calculate percentage of marine resources used by C. acutus. Results indicate that adult C. acutus in southern Florida use marine food about 65% of the time and seawater or water gleaned from marine food about 80% of the time. This suggests that behavioral osmoregulatory techniques (i.e. seeking fresh water specifically for drinking, as suggested by other researchers) may not be necessary and that C. acutus is capable of being largely ecologically independent of fresh water. JF - Marine Ecology Progress Series AU - Wheatley, Patrick V AU - Peckham, Hoyt AU - Newsome, Seth D AU - Koch, Paul L AD - Earth and Planetary Sciences Department, University of California, Santa Cruz, California 95064, USA, pvwheatley@lbl.gov Y1 - 2011 PY - 2011 DA - 2011 SP - 211 EP - 229 PB - Inter-Research, Nordbuente 23 Oldendorf/Luhe 21385 Germany VL - 447 SN - 0171-8630, 0171-8630 KW - Sustainability Science Abstracts; Oceanic Abstracts; ASFA 1: Biological Sciences & Living Resources; Ecology Abstracts KW - Reptiles KW - Isotopes KW - Water mixing KW - Seawater KW - Aquatic reptiles KW - Carbon isotopes KW - Osmoregulation KW - Models KW - Tracers KW - Food consumption KW - Salinity KW - Marine resources KW - Carbon KW - Water salinity KW - Marine environment KW - Physiological responses KW - I, Pacific KW - Alligator mississippiensis KW - Saline water KW - Natural populations KW - Marine KW - ASW, USA, Florida KW - Beverages KW - Freshwater environments KW - Habitat KW - Crocodylus acutus KW - Oxygen isotopes KW - Oxygen KW - Alligator KW - Iguana KW - Strontium KW - Drinking water KW - O 1070:Ecology/Community Studies KW - M3 1010:Issues in Sustainable Development KW - D 04040:Ecosystem and Ecology Studies KW - Q1 08425:Nutrition and feeding habits UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1113223115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+Ecology+Progress+Series&rft.atitle=Estimating+marine+resource+use+by+the+American+crocodile+Crocodylus+acutus+in+southern+Florida%2C+USA&rft.au=Wheatley%2C+Patrick+V%3BPeckham%2C+Hoyt%3BNewsome%2C+Seth+D%3BKoch%2C+Paul+L&rft.aulast=Wheatley&rft.aufirst=Patrick&rft.date=2011-01-01&rft.volume=447&rft.issue=&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Marine+Ecology+Progress+Series&rft.issn=01718630&rft_id=info:doi/10.3354%2Fmeps09503 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-10-01 N1 - Last updated - 2014-05-05 N1 - SubjectsTermNotLitGenreText - Oxygen isotopes; Food consumption; Marine resources; Water mixing; Carbon isotopes; Aquatic reptiles; Natural populations; Saline water; Osmoregulation; Isotopes; Beverages; Freshwater environments; Habitat; Models; Tracers; Oxygen; Carbon; Marine environment; Water salinity; Strontium; Drinking water; Reptiles; Salinity; Seawater; Physiological responses; Alligator; Alligator mississippiensis; Iguana; Crocodylus acutus; ASW, USA, Florida; I, Pacific; Marine DO - http://dx.doi.org/10.3354/meps09503 ER - TY - JOUR T1 - Nucleation and growth mechanisms and kinetics of environmentally important oxides and carbonates AN - 1112672470; 2012-087349 AB - Nucleation and growth of hydrous oxide or carbonate nanoparticles can significantly influence the fate and transport of organic and heavy metal contaminants in the environment. Their particles' formation and transport can alter the porosity and permeability of geo-media. Therefore, more accurate quantitative and qualitative information about mineral nucleation and growth is required. In this work, we used a time-resolved simultaneous small angle x-ray scattering (SAXS)/grazing incidence (GISAXS) setup for real-time monitoring of water-mineral interfacial reactions. To observe the size, shape, distribution, and phase of hydrous iron oxide and calcium carbonate nanoparticles on quartz and mica surfaces as well as in solutions, we also used complementary techniques, such as atomic force microscopy, high resolution transmission electron microscopy, high resolution X-ray diffraction, and grazing incidence wide angle x-ray scattering. The solutions included different ionic strengths of sodium nitrate, arsenate, aluminum, and polyaspartate. The mineral nucleation and growth modes were monitored as a function of exposure time. We delineated the quantitative contributions between homogenous and heterogeneous mechanisms at varied environmental conditions. Hydrous iron oxide nanoparticles formed preferentially along steps rather than terraces, while amorphous calcium carbonate did not show any clear preference. Under aqueous conditions, newly formed nanoparticles did not exhibit any facets. The presence of arsenate and aluminum ions significantly influenced the sizes and crystallinities of hydrous iron oxide nanoparticles and altered their nucleation and growth kinetics. This study provides more accurate depiction of nucleation and growth of environmentally important minerals in solution as well as at active interfaces. Our findings have implications not only for hydrous oxide- or carbonate-containing biogeochemical systems, but also for environmental remediation (heavy metal removal and nuclear waste deposition site remediation) and geoengineering applications (geologic CO (sub 2) sequestration). JF - Mineralogical Magazine AU - Jun, Young-Shin AU - Lee, Byeongdu AU - Hu, Yandi AU - Ray, Jessica R AU - Waychunas, Glenn A AU - Fernandez-Martinez, Alejandro AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1130 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - GISAXS data KW - growth rates KW - X-ray diffraction data KW - crystal growth KW - remediation KW - radioactive waste KW - laboratory studies KW - atomic force microscopy data KW - arsenates KW - oxides KW - applications KW - spectra KW - kinetics KW - small-angle X-ray scattering method KW - heavy metals KW - experimental studies KW - monitoring KW - carbon sequestration KW - pollutants KW - pollution KW - nitrates KW - mineral-water interface KW - X-ray spectra KW - TEM data KW - SAXS data KW - organic compounds KW - nucleation KW - metals KW - waste disposal KW - nanoparticles KW - carbonates KW - 22:Environmental geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112672470?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Nucleation+and+growth+mechanisms+and+kinetics+of+environmentally+important+oxides+and+carbonates&rft.au=Jun%2C+Young-Shin%3BLee%2C+Byeongdu%3BHu%2C+Yandi%3BRay%2C+Jessica+R%3BWaychunas%2C+Glenn+A%3BFernandez-Martinez%2C+Alejandro%3BAnonymous&rft.aulast=Jun&rft.aufirst=Young-Shin&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1130&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1092.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - applications; arsenates; atomic force microscopy data; carbon sequestration; carbonates; crystal growth; experimental studies; GISAXS data; growth rates; heavy metals; kinetics; laboratory studies; metals; mineral-water interface; monitoring; nanoparticles; nitrates; nucleation; organic compounds; oxides; pollutants; pollution; radioactive waste; remediation; SAXS data; small-angle X-ray scattering method; spectra; TEM data; waste disposal; X-ray diffraction data; X-ray spectra ER - TY - JOUR T1 - Temporal dynamics of arsenic-bearing phases during the suspended transport AN - 1112670159; 2012-091296 AB - In a former gold mining district (Isle river basin, France), arsenic-bearing phases have been characterized in suspended particulate matter by in-situ techniques (EPMA, SEM-EDS/ACC system and synchrotron based mu XRD) in order to describe the temporal dynamics of As at a particle scale during the solid transport. The most frequent As-bearing phases but the least As- concentrated (0.10-1.58 wt% As) were aggregates of various fine clay particles (chlorite-phlogopite-kaolinite assemblage during the high flow and chlorite-illite- muscovite assemblage during the low flow). They were also associated to Fe-coatings and nano- to micro- particles of Fe oxyhydroxydes like goethite (0.18-0.45 wt% As, Fig. 1). Iron and Mn oxyhydroxydes were the 2 other types of As-bearing phases (0.12-2.80 wt% As and 0.14-1.26 wt% As respectively), present as discrete particles. Their occurrence and in-situ concentrations varied throughout the hydrological cycle, according to their detrital or newly formed origins. JF - Mineralogical Magazine AU - Grosbois, Cecile AU - Courtin-Nomade, A AU - Robin, E AU - Bril, H AU - Tamura, N AU - Schaefer, J AU - Blanc, G AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 948 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - goethite KW - X-ray diffraction data KW - muscovite KW - clay mineralogy KW - rivers and streams KW - suspended materials KW - Europe KW - electron probe data KW - France KW - mica group KW - drainage basins KW - gold ores KW - particulate materials KW - mineral assemblages KW - hydrology KW - mines KW - experimental studies KW - in situ KW - sediment transport KW - pollutants KW - oxyhydroxides KW - X-ray spectra KW - EDS spectra KW - hydroxides KW - chlorite KW - metal ores KW - Dordogne France KW - SEM data KW - stream sediments KW - southwestern France KW - synchrotron radiation KW - Haute-Vienne France KW - transport KW - sediments KW - oxides KW - spectra KW - chlorite group KW - Gironde France KW - abandoned mines KW - Western Europe KW - Isle River basin KW - arsenic KW - pollution KW - metals KW - sheet silicates KW - temporal distribution KW - fluvial environment KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112670159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Temporal+dynamics+of+arsenic-bearing+phases+during+the+suspended+transport&rft.au=Grosbois%2C+Cecile%3BCourtin-Nomade%2C+A%3BRobin%2C+E%3BBril%2C+H%3BTamura%2C+N%3BSchaefer%2C+J%3BBlanc%2C+G%3BAnonymous&rft.aulast=Grosbois&rft.aufirst=Cecile&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=948&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/878.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - abandoned mines; arsenic; chlorite; chlorite group; clay mineralogy; Dordogne France; drainage basins; EDS spectra; electron probe data; Europe; experimental studies; fluvial environment; France; Gironde France; goethite; gold ores; Haute-Vienne France; hydrology; hydroxides; in situ; Isle River basin; metal ores; metals; mica group; mineral assemblages; mines; muscovite; oxides; oxyhydroxides; particulate materials; pollutants; pollution; rivers and streams; sediment transport; sediments; SEM data; sheet silicates; silicates; southwestern France; spectra; stream sediments; suspended materials; synchrotron radiation; temporal distribution; transport; Western Europe; X-ray diffraction data; X-ray spectra ER - TY - JOUR T1 - Reactive Fe(II) and electron exchange dynamics in iron oxides AN - 1112665816; 2012-091368 AB - Ferrous-ferric electron exchange is central to the biogeochemical cycle of iron and determines iron forms and availability in the subsurface. For most environmentally relevant conditions this exchange involves interaction between soluble ferrous iron and solid-phase iron oxides and oxyhydroxides, with complex involvement of solid-state charge migration. Examples include Fe (II)-catalyzed transformation of Fe (III)-oxides and oxyhydroxides, and spinel ferrite nanoparticles acting as a mineralogic source and sink for reactive Fe (II) due to their topotactic solid-solution property and stable multi-valent nature. This presentation focuses on the interdependence of Fe (II) fluxes at these mineral-water interfaces with structural and electronic properties of mineralogic iron oxide forms. Using combined experiment and computational molecular simulation, we examine the underlying mechanisms of observed complete iron atom exchange without change in mineralogy, crystallinity, crystal size or shape between an aqueous Fe (II) pool and well-defined goethite (FeOOH) crystallites, the accessibility of solid-state Fe (II) in titanomagnetite (Fe (sub 3-x) Ti (sub x) O (sub 4) ) nanoparticles in which the structural Fe (II)/Fe (III) ratio is intentionally tuned by the Ti (IV) content, and the highly time-resolved dynamics and fate of Fe (II) electrons photoinjected into maghemite (Fe (sub 8/3) O (sub 4) ) nanoparticles. Aspects covered will include thermodynamic energy requirements for bulk crystal conduction and possible free energy sources sustaining bulk currents, ferrous iron adsorption energies at iron oxide surfaces and the kinetics of interfacial electron exchange, the structural dependence of ferrous-ferric electron exchange in the solid, and internal charge compensation mechanisms. These lines of research are collectively converging on a picture of rapid electron exchange dynamics between aqueous ferrous iron and iron oxides, with broad-reaching implications for the biogeochemistry iron in the subsurface. JF - Mineralogical Magazine AU - Rosso, Kevin M AU - Zarzycki, Piotr AU - Pearce, C I AU - Katz, J AU - Gilbert, B AU - Handler, R M AU - Scherer, M M AU - Meakin, P AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1757 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - experimental studies KW - iron oxides KW - goethite KW - biochemistry KW - mineral-water interface KW - crystal structure KW - iron KW - titanomagnetite KW - ferrous iron KW - molecular structure KW - catalysis KW - chemical reactions KW - metals KW - theoretical models KW - oxides KW - crystal chemistry KW - nanoparticles KW - maghemite KW - electrons KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1112665816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Reactive+Fe%28II%29+and+electron+exchange+dynamics+in+iron+oxides&rft.au=Rosso%2C+Kevin+M%3BZarzycki%2C+Piotr%3BPearce%2C+C+I%3BKatz%2C+J%3BGilbert%2C+B%3BHandler%2C+R+M%3BScherer%2C+M+M%3BMeakin%2C+P%3BAnonymous&rft.aulast=Rosso&rft.aufirst=Kevin&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1757&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1685.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-10-18 N1 - SubjectsTermNotLitGenreText - biochemistry; catalysis; chemical reactions; crystal chemistry; crystal structure; electrons; experimental studies; ferrous iron; goethite; iron; iron oxides; maghemite; metals; mineral-water interface; molecular structure; nanoparticles; oxides; theoretical models; titanomagnetite ER - TY - JOUR T1 - Effect of partial water saturation on attenuation characteristics of low porosity rocks AN - 1080609776; 2012-085371 JF - Rock Mechanics and Rock Engineering AU - Oh, Tae-Min AU - Kwon, Tae-Hyuk AU - Cho, Gye-Chun Y1 - 2011 PY - 2011 DA - 2011 SP - 245 EP - 251 PB - Springer-Verlag, Vienna - New York VL - 44 IS - 2 SN - 0723-2632, 0723-2632 KW - laboratory studies KW - attenuation KW - experimental studies KW - partial pressure KW - saturated materials KW - propagation KW - porosity KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080609776?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Rock+Mechanics+and+Rock+Engineering&rft.atitle=Effect+of+partial+water+saturation+on+attenuation+characteristics+of+low+porosity+rocks&rft.au=Oh%2C+Tae-Min%3BKwon%2C+Tae-Hyuk%3BCho%2C+Gye-Chun&rft.aulast=Oh&rft.aufirst=Tae-Min&rft.date=2011-01-01&rft.volume=44&rft.issue=2&rft.spage=245&rft.isbn=&rft.btitle=&rft.title=Rock+Mechanics+and+Rock+Engineering&rft.issn=07232632&rft_id=info:doi/10.1007%2Fs00603-010-0121-6 L2 - http://www.springerlink.com/content/101578/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 16 N1 - Last updated - 2012-09-27 N1 - CODEN - RMREDX N1 - SubjectsTermNotLitGenreText - attenuation; experimental studies; laboratory studies; partial pressure; porosity; propagation; saturated materials DO - http://dx.doi.org/10.1007/s00603-010-0121-6 ER - TY - JOUR T1 - Marine methane cycle simulations for the period of early global warming AN - 1080608974; 2012-085080 AB - Geochemical environments, fates, and effects are modeled for methane released into seawater by the decomposition of climate-sensitive clathrates. A contemporary global background cycle is first constructed, within the framework of the Parallel Ocean Program. Input from organics in the upper thermocline is related to oxygen levels, and microbial consumption is parameterized from available rate measurements. Seepage into bottom layers is then superimposed, representing typical seabed fluid flow. The resulting CH (sub 4) distribution is validated against surface saturation ratios, vertical sections, and slope plume studies. Injections of clathrate-derived methane are explored by distributing a small number of point sources around the Arctic continental shelf, where stocks are extensive and susceptible to instability during the first few decades of global warming. Isolated bottom cells are assigned dissolved gas fluxes from porous-media simulation. Given the present bulk removal pattern, methane does not penetrate far from emission sites. Accumulated effects, however, spread to the regional scale following the modeled current system. Both hypoxification and acidification are documented. Sensitivity studies illustrate a potential for material restrictions to broaden the perturbations, since methanotrophic consumers require nutrients and trace metals. When such factors are considered, methane buildup within the Arctic basin is enhanced. However, freshened polar surface waters act as a barrier to atmospheric transfer, diverting products into the deep return flow. Uncertainties in the logic and calculations are enumerated including those inherent in high-latitude clathrate abundance, buoyant effluent rise through the column, representation of the general circulation, and bacterial growth kinetics. JF - Journal of Geophysical Research AU - Elliott, Scott AU - Maltrud, Mathew AU - Reagan, Matthew AU - Moridis, George AU - Cameron-Smith, Philip Y1 - 2011 PY - 2011 DA - 2011 EP - Citation G01010 PB - American Geophysical Union, Washington, DC VL - 116 IS - G1 SN - 0148-0227, 0148-0227 KW - sea water KW - methane KW - aliphatic hydrocarbons KW - solutes KW - global change KW - alkanes KW - clathrates KW - climate change KW - geochemical cycle KW - organic compounds KW - methane cycle KW - marine environment KW - hydrocarbons KW - chemical composition KW - world ocean KW - global warming KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080608974?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Marine+methane+cycle+simulations+for+the+period+of+early+global+warming&rft.au=Elliott%2C+Scott%3BMaltrud%2C+Mathew%3BReagan%2C+Matthew%3BMoridis%2C+George%3BCameron-Smith%2C+Philip&rft.aulast=Elliott&rft.aufirst=Scott&rft.date=2011-01-01&rft.volume=116&rft.issue=G1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JG001300 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 45 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; chemical composition; clathrates; climate change; geochemical cycle; global change; global warming; hydrocarbons; marine environment; methane; methane cycle; organic compounds; sea water; solutes; world ocean DO - http://dx.doi.org/10.1029/2010JG001300 ER - TY - JOUR T1 - Using complex resistivity imaging to infer biogeochemical processes associated with bioremediation of an uranium-contaminated aquifer AN - 1080608551; 2012-083198 AB - Experiments at the Department of Energy's Integrated Field Research Challenge (IFRC) site near Rifle, Colorado, have demonstrated the ability to remove uranium from groundwater by stimulating the growth and activity of Geobacter species through acetate amendment. Prolonging the activity of these strains in order to optimize uranium bioremediation has prompted the development of minimally invasive and spatially extensive monitoring methods diagnostic of their in situ activity and the end products of their metabolism. Here we demonstrate the use of complex resistivity imaging for monitoring biogeochemical changes accompanying stimulation of indigenous aquifer microorganisms during and after a prolonged period (100+ days) of acetate injection. A thorough raw data statistical analysis of discrepancies between normal and reciprocal measurements and incorporation of a new power law phase-error model in the inversion were used to significantly improve the quality of the resistivity phase images over those obtained during previous monitoring experiments at the Rifle IFRC site. The imaging results reveal spatiotemporal changes in the phase response of aquifer sediments, which correlate with increases in Fe(II) and precipitation of metal sulfides (e.g., FeS) following the iterative stimulation of iron and sulfate-reducing microorganisms. Only modest changes in resistivity magnitude were observed over the monitoring period. The largest phase anomalies (>40 mrad) were observed hundreds of days after halting acetate injection, in conjunction with accumulation of Fe(II) in the presence of residual FeS minerals, reflecting preservation of geochemically reduced conditions in the aquifer, a prerequisite for ensuring the long-term stability of immobilized, redox-sensitive contaminants such as uranium. JF - Journal of Geophysical Research AU - Flores Orozco, Adrian AU - Williams, Kenneth H AU - Long, Philip E AU - Hubbard, Susan S AU - Kemna, Andreas Y1 - 2011 PY - 2011 DA - 2011 EP - Citation G03001 PB - American Geophysical Union, Washington, DC VL - 116 IS - G3 SN - 0148-0227, 0148-0227 KW - United States KW - hydrology KW - biodegradation KW - Geobacter KW - Garfield County Colorado KW - pollutants KW - metabolism KW - biochemistry KW - statistical analysis KW - pollution KW - bioremediation KW - remediation KW - ground water KW - aquifers KW - Rifle Colorado KW - metals KW - bacteria KW - uranium KW - Colorado KW - water pollution KW - actinides KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080608551?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Using+complex+resistivity+imaging+to+infer+biogeochemical+processes+associated+with+bioremediation+of+an+uranium-contaminated+aquifer&rft.au=Flores+Orozco%2C+Adrian%3BWilliams%2C+Kenneth+H%3BLong%2C+Philip+E%3BHubbard%2C+Susan+S%3BKemna%2C+Andreas&rft.aulast=Flores+Orozco&rft.aufirst=Adrian&rft.date=2011-01-01&rft.volume=116&rft.issue=G3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2010JG001591 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-09-27 N1 - SubjectsTermNotLitGenreText - actinides; aquifers; bacteria; biochemistry; biodegradation; bioremediation; Colorado; Garfield County Colorado; Geobacter; ground water; hydrology; metabolism; metals; microorganisms; pollutants; pollution; remediation; Rifle Colorado; statistical analysis; United States; uranium; water pollution DO - http://dx.doi.org/10.1029/2010JG001591 ER - TY - JOUR T1 - Constitutive relationships for elastic deformation of clay rock; data analysis AN - 1080608189; 2012-083520 AB - Geological repositories have been considered a feasible option worldwide for storing high-level nuclear waste. Clay rock is one of the rock types under consideration for such purposes, because of its favorable features to prevent radionuclide transport from the repository. Coupled hydromechanical processes have an important impact on the performance of a clay repository, and establishing constitutive relationships for modeling such processes are essential. In this study, we propose several constitutive relationships for elastic deformation in indurated clay rocks based on three recently developed concepts. First, when applying Hooke's law in clay rocks, true strain (rock volume change divided by the current rock volume), rather than engineering strain (rock volume change divided by unstressed rock volume), should be used, except when the degree of deformation is very small. In the latter case, the two strains will be practically identical. Second, because of its inherent heterogeneity, clay rock can be divided into two parts, a hard part and a soft part, with the hard part subject to a relatively small degree of deformation compared with the soft part. Third, for swelling rock like clay, effective stress needs to be generalized to include an additional term resulting from the swelling process. To evaluate our theoretical development, we analyze uniaxial test data for core samples of Opalinus clay and laboratory measurements of single fractures within macro-cracked Callovo-Oxfordian argillite samples subject to both confinement and water reduced swelling. The results from this evaluation indicate that our constitutive relationships can adequately represent the data and explain the related observations. Copyright 2011 Springer-Verlag and The Author(s) JF - Rock Mechanics and Rock Engineering AU - Liu, H H AU - Rutqvist, J AU - Birkholzer, J T Y1 - 2011 PY - 2011 DA - 2011 SP - 463 EP - 468 PB - Springer-Verlag, Vienna - New York VL - 44 IS - 4 SN - 0723-2632, 0723-2632 KW - argillite KW - strain KW - Jurassic KW - elastic properties KW - mechanical properties KW - deformation KW - Mesozoic KW - radioactive waste KW - sedimentary rocks KW - Opalinus Clay KW - tonstein KW - constitutive equations KW - polyphase processes KW - equations of state KW - waste disposal KW - clastic rocks KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080608189?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Rock+Mechanics+and+Rock+Engineering&rft.atitle=Constitutive+relationships+for+elastic+deformation+of+clay+rock%3B+data+analysis&rft.au=Liu%2C+H+H%3BRutqvist%2C+J%3BBirkholzer%2C+J+T&rft.aulast=Liu&rft.aufirst=H&rft.date=2011-01-01&rft.volume=44&rft.issue=4&rft.spage=463&rft.isbn=&rft.btitle=&rft.title=Rock+Mechanics+and+Rock+Engineering&rft.issn=07232632&rft_id=info:doi/10.1007%2Fs00603-010-0131-4 L2 - http://www.springerlink.com/content/101578/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 15 N1 - Last updated - 2012-09-27 N1 - CODEN - RMREDX N1 - SubjectsTermNotLitGenreText - argillite; clastic rocks; constitutive equations; deformation; elastic properties; equations of state; Jurassic; mechanical properties; Mesozoic; Opalinus Clay; polyphase processes; radioactive waste; sedimentary rocks; strain; tonstein; waste disposal DO - http://dx.doi.org/10.1007/s00603-010-0131-4 ER - TY - JOUR T1 - Molecular model of kinetic isotope fractionation during surface-controlled growth of CaCO (sub 3) from aqueous solution AN - 1080607913; 2012-083268 AB - The attachment and detachment of cations and anions at the mineral-aqueous solution interface control rates of crystal growth and dissolution, and also affect isotope fractionation and trace element partitioning. Recent experimental work has begun to characterize kinetic isotope fractionation during precipitation of CaCO (sub 3) and other di-ionic solids. Proposed models for isotopic and trace element effects deal only with macroscopic properties such as solution saturation state and solid state diffusivity. In this study, we apply molecular models of di-ionic crystal growth to deduce the dependence of kinetic isotope fractionation on growth mechanism, and both solution saturation state and stoichiometry. Recent theoretical advances have underscored the significance of solution stoichiometry-e.g. the ratio of Ca to CO (sub 3) ion activities in solution-for controlling mineral surface kink density and composition and thus growth rate and growth mechanism. Our approach incorporates the effect of solution composition on microscopic mineral surface structure and composition, providing testable hypotheses for growth of sparingly soluble AB crystals such as calcite, namely: Oversaturation and solution stoichiometry control growth rate and partitioning of A and B isotopes during precipitation; For step growth, distinct rate laws describe dislocation- and 2D nucleation-driven growth, while the expression describing isotope fractionation requires no change; Formation of amorphous precursors will generate isotope effects incompatible with ion-by-ion growth theory. As observed during calcite growth, increasing over-saturation increases growth rate and drives isotope partitioning towards the kinetic limit. Also, increasing concentration of Ca (super 2+) relative to CO (sub 3) (super 2-) should drive new growth towards isotopic equilibrium. These competing effects, as well as the formation of an amorphous precursor, determine the observed magnitude of isotope fractionation. This model provides a clear mechanistic description of processes controlling the cross-over from the near-equilibrium to the kinetic limit of isotope fractionation, allowing us to relate trends in experimental data to environmental conditions of growth. JF - Mineralogical Magazine AU - Nielsen, Laura C AU - DePaolo, Donald J AU - De Yoreo, James J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1539 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - isotope fractionation KW - anions KW - growth rates KW - experimental studies KW - carbonate ion KW - isotopes KW - amorphous materials KW - mineral-water interface KW - crystal growth KW - aqueous solutions KW - ions KW - calcite KW - molecular structure KW - saturation KW - cations KW - calcium carbonate KW - crystal chemistry KW - kinetics KW - carbonates KW - mineral surface KW - 02D:Isotope geochemistry KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1080607913?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Molecular+model+of+kinetic+isotope+fractionation+during+surface-controlled+growth+of+CaCO+%28sub+3%29+from+aqueous+solution&rft.au=Nielsen%2C+Laura+C%3BDePaolo%2C+Donald+J%3BDe+Yoreo%2C+James+J%3BAnonymous&rft.aulast=Nielsen&rft.aufirst=Laura&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1539&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1521.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-09-27 N1 - SubjectsTermNotLitGenreText - amorphous materials; anions; aqueous solutions; calcite; calcium carbonate; carbonate ion; carbonates; cations; crystal chemistry; crystal growth; experimental studies; growth rates; ions; isotope fractionation; isotopes; kinetics; mineral surface; mineral-water interface; molecular structure; saturation ER - TY - JOUR T1 - On the propagation of a coupled saturation and pressure front AN - 1039343023; 2012-081118 AB - Using an asymptotic technique, valid for a medium with smoothly varying heterogeneity, I derive an expression for the velocity of a propagating, coupled saturation and pressure front. The asymptotic approach produces an explicit expression for the slowness, the inverse of the velocity, of a propagating two-phase front. Because of the nonlinearity of the governing equations, the velocity of the propagating front depends upon the magnitude of the saturation and pressure changes across the front in addition to the properties of the medium. Thus, the expression must be evaluated in conjunction with numerical reservoir simulation. The slowness is governed by the background saturation distribution, the saturation-dependent component of the fluid mobility, the porosity, the permeability, the capillary pressure function, the medium compressibility, and the ratio of the slopes of the relative permeability curves. Numerical simulation of water injection into a porous layer saturated with a nonaqueous phase liquid indicates that two modes of propagation are important. The fastest mode of propagation is a disturbance that is dominated by the change in fluid pressure. This is followed, much later, by a coupled mode associated with a much larger saturation change. These two modes are also observed in a numerical simulation using a heterogeneous porous layer. A comparison between the propagation times estimated from the results of the numerical simulation and predictions from the asymptotic expression indicates overall agreement. JF - Water Resources Research AU - Vasco, D W Y1 - 2011 PY - 2011 DA - 2011 EP - Citation W03526 PB - American Geophysical Union, Washington, DC VL - 47 IS - 3 SN - 0043-1397, 0043-1397 KW - hydrology KW - numerical models KW - solitons KW - data processing KW - techniques KW - porous materials KW - mathematical models KW - preferential flow KW - porosity KW - digital simulation KW - multiphase flow KW - nonlinear processes KW - permeability KW - instruments KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039343023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=On+the+propagation+of+a+coupled+saturation+and+pressure+front&rft.au=Vasco%2C+D+W&rft.aulast=Vasco&rft.aufirst=D&rft.date=2011-01-01&rft.volume=47&rft.issue=3&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2010WR009740 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 69 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-09-14 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - data processing; digital simulation; hydrology; instruments; mathematical models; multiphase flow; nonlinear processes; numerical models; permeability; porosity; porous materials; preferential flow; solitons; techniques DO - http://dx.doi.org/10.1029/2010WR009740 ER - TY - JOUR T1 - Cr isotope fractionation during biogeochemical reduction of Cr(VI) by Hanford native aquifer microbial communities AN - 1039339505; 2012-081263 AB - Hexavalent Cr contamination in groundwater within the DOE complex has been a long-standing issue. Injection of electron donors, such as lactate, to Cr contaminated aquifers to stimulate the growth of native microbial communities, and thus promote reduction of Cr (VI) to Cr (III), has become a widely utilized remediation practice. However, whether these conditions are optimal for Cr reduction is to a large extent unknown. It has been demontrated that reduction of Cr (VI) can cause Cr isotope fractionation [1, 2]. The Cr fractionation factor changes under varying experimental conditions even with the same bacterial strain [2]. Cr isotopic measurements are more direct and effective than concentration analyses to distinguish between different reduction pathways, and also between reduction and simple dilution. To evaluate the effects of differing electron acceptors on Cr (VI) reduction by native microbes, small-scale column experiments with homogenized material from the Hanford 100H aquifer were conducted. All columns had a continuous inflow of solutions with constant concentrations of Cr (VI), lactate, and the targeted electron acceptor (nitrate, sulfate, no electron acceptor added). Different Cr fractionation behaviors were observed under different conditions. The least extensive Cr reduction occurred in no-electron-acceptor-added columns and had the largest Cr isotope fractionation (alpha approximately 0.997). The greatest Cr reduction occurred in two sulfate-containing columns that were fermenting the lactate. Samples from one such column had the smallest Cr fractionation (alpha approximately 0.999). Denitrifying columns had intermediate alpha values. One sulfate-added (not fermentative) column showed two distinctive stages of fractionation, suggesting a change in reduction processes. Our alpha values mostly fall in the range 0.997-0.999, which are smaller than those observed in cell suspension experiments with Shewanella oneidensis and much lower lactate concentrations [2]. Reactive tranport modeling will be conducted to further evaluate the effects of various experimental parameters on Cr isotope fractionation. JF - Mineralogical Magazine AU - Qin, L AU - Christensen, J N AU - Brown, S T AU - Yang, L AU - Conrad, M E AU - Sonnenthal, E AU - Beller, H R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1680 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - isotope fractionation KW - experimental studies KW - Washington KW - communities KW - isotopes KW - biochemistry KW - pollution KW - Hanford Site KW - bioremediation KW - remediation KW - ground water KW - aquifers KW - laboratory studies KW - hexavalent chromium KW - biogenic processes KW - metals KW - reduction KW - water pollution KW - chromium KW - microorganisms KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1039339505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Cr+isotope+fractionation+during+biogeochemical+reduction+of+Cr%28VI%29+by+Hanford+native+aquifer+microbial+communities&rft.au=Qin%2C+L%3BChristensen%2C+J+N%3BBrown%2C+S+T%3BYang%2C+L%3BConrad%2C+M+E%3BSonnenthal%2C+E%3BBeller%2C+H+R%3BAnonymous&rft.aulast=Qin&rft.aufirst=L&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1680&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1679.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-09-14 N1 - SubjectsTermNotLitGenreText - aquifers; biochemistry; biogenic processes; bioremediation; chromium; communities; experimental studies; ground water; Hanford Site; hexavalent chromium; isotope fractionation; isotopes; laboratory studies; metals; microorganisms; pollution; reduction; remediation; United States; Washington; water pollution ER - TY - JOUR T1 - Evaluation of chromium reductive immobilization and oxidative re-mobilization in flow-through aquifer sediment columns AN - 1037240994; 2012-077867 AB - Remediation of chromium contamination typically involves reducing the toxic and soluble hexavalent form, Cr(VI), to the relatively harmless and mostly immobile trivalent state, Cr(III). The objective of the overall project is to identify the biogeochemical mechanisms that control in situ chromium reduction and oxidation. In the initial phase of the experiment, reduction under anaerobic conditions was observed for over 12 months by subjecting flow-through columns containing homogenized sediments from the Hanford 100H site to different dominant electron acceptors, i.e. NO (sub 3) (super -) , Fe(III), and SO (sub 4) (super 2-) , in the presence of Cr(VI) and lactate. Cr(VI) was depleted in the effluent solutions of the nitrate-treated columns, all of which exhibited denitrifying conditions, as well as in some of the sulfate-amended columns where fermentative conditions were dominant. However, only a small amount of Cr(VI) was removed under other electron-accepting conditions. Spectroscopic analysis of the column sediments showed that most of the chromium was precipitated as mixed phase Cr-Fe hydroxides. In the second phase of the study, the denitrifying and fermentative columns were subjected to oxidizing conditions that are expected to be prevalent once the bioremediation is completed (with nitrate and O (sub 2) present). Preliminary results show that the chromium precipitated in the denitrifying columns was more readily mobilized under the oxidizing conditions, suggesting that fermentative conditions promote more sustained Cr(VI) remediation. JF - Mineralogical Magazine AU - Varadharajan, Charuleka AU - Nico, Peter S AU - Yang, Li AU - Marcus, Matthew A AU - Han, Ruyang AU - Bill, Markus AU - Larsen, Joern AU - Van Hise, April AU - Molins, Sergi AU - Steefel, Carl AU - Conrad, Mark AU - Brodie, Eoin L AU - Beller, Harry R AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2073 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - toxic materials KW - experimental studies KW - biochemistry KW - oxidation KW - pollution KW - bioremediation KW - remediation KW - ground water KW - aquifers KW - laboratory studies KW - hexavalent chromium KW - precipitation KW - metals KW - sediments KW - hydrodynamics KW - anaerobic environment KW - reduction KW - mobilization KW - water pollution KW - geochemistry KW - chromium KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240994?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Evaluation+of+chromium+reductive+immobilization+and+oxidative+re-mobilization+in+flow-through+aquifer+sediment+columns&rft.au=Varadharajan%2C+Charuleka%3BNico%2C+Peter+S%3BYang%2C+Li%3BMarcus%2C+Matthew+A%3BHan%2C+Ruyang%3BBill%2C+Markus%3BLarsen%2C+Joern%3BVan+Hise%2C+April%3BMolins%2C+Sergi%3BSteefel%2C+Carl%3BConrad%2C+Mark%3BBrodie%2C+Eoin+L%3BBeller%2C+Harry+R%3BAnonymous&rft.aulast=Varadharajan&rft.aufirst=Charuleka&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2073&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2056.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-08-31 N1 - SubjectsTermNotLitGenreText - anaerobic environment; aquifers; biochemistry; bioremediation; chromium; experimental studies; geochemistry; ground water; hexavalent chromium; hydrodynamics; laboratory studies; metals; mobilization; oxidation; pollution; precipitation; reduction; remediation; sediments; toxic materials; water pollution ER - TY - JOUR T1 - Characterization of Fe(0) electrocoagulation reaction products using synchrotron-based techniques AN - 1037240981; 2012-077854 AB - Electrocoagulation (EC) using Fe (0) electrodes is a promising technology capable of cheaply and efficiently removing arsenic from drinking water. In EC, an electric current is applied to Fe (0) electrodes inserted into pumped groundwater contaminated with arsenic. Electrolysis of the Fe (0) anode leads to the in situ formation of iron (oxyhydr)oxides, which form surface complexes with arsenic. Of concern in such systems are common groundwater constituents (PO (sub 4) (super 3-) , SiO (sub 2) , Ca (super 2+) , Mg (super 2+) ), which can influence the structure of the generated precipitates in both subtle and complex ways. To assess the influence of these ions, synchrotron-based techniques were used to characterize EC precipitates generated in chemically varying electrolytes. Electrolytes were chosen to clarify the individual effect of strongly-adsorbed ions (0.5 mM Na (sub 2) HPO (sub 4) , 0.75 mM SiO (sub 2) ) and weakly-adsorbed ions (1 mM CaCl (sub 2) , 1mM MgCl (sub 2) , 2 mM NaCl) on the removal of 1 mu M As(V) at pH 7.5. The As K-edge XANES and EXAFS spectra of precipitates generated in the Na (sub 2) HPO (sub 4) electrolyte differed in both phase and line shape from those of precipitates generated in the NaCl and CaCl (sub 2) electrolytes. These differences likely reflect a change in the adsorbent structure due to sorption of the surface-poisoning PO (sub 4) (super 3-) oxyanion. The Fe K-edge EXAFS spectra and PDFs of similar samples will be presented to provide complementary views of the adsorbent structure (phase, crystallite size, and degree of FeO (sub 6) octahedral polymerization) in instances where variations in the As K-edge spectra were observed. These results provide an important molecular-scale understanding of arsenic removal during EC. JF - Mineralogical Magazine AU - van Genuchten, C M AU - Pena, J AU - Addy, S E A AU - Sposito, G AU - Gadgil, A J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 2067 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - electrodes KW - technology KW - pollutants KW - arsenic KW - pollution KW - electrolytes KW - adsorption KW - electrocoagulation KW - hydrochemistry KW - electrochemical properties KW - drinking water KW - iron KW - remediation KW - synchrotron radiation KW - chemical reactions KW - decontamination KW - precipitation KW - metals KW - electrolysis KW - geochemistry KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037240981?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Characterization+of+Fe%280%29+electrocoagulation+reaction+products+using+synchrotron-based+techniques&rft.au=van+Genuchten%2C+C+M%3BPena%2C+J%3BAddy%2C+S+E+A%3BSposito%2C+G%3BGadgil%2C+A+J%3BAnonymous&rft.aulast=van+Genuchten&rft.aufirst=C&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=2067&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/2056.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-08-31 N1 - SubjectsTermNotLitGenreText - adsorption; arsenic; chemical reactions; decontamination; drinking water; electrochemical properties; electrocoagulation; electrodes; electrolysis; electrolytes; geochemistry; hydrochemistry; iron; metals; pollutants; pollution; precipitation; remediation; synchrotron radiation; technology ER - TY - JOUR T1 - Effects of microbial activity and electron shuttles on the reduction of U(VI) under sulfidogenic conditions AN - 1033536035; 2012-074463 AB - Recent studies suggest that electron shuttles such as low molecular mass quinones and humic substances may play a role in many redox reactions involved in contaminant transformations and the biogeochemical cycling of redox active elements. This study investigates the effects of 9, 10-anthraquinone-2, 6-disulfonate (AQDS), a synthetic electron shuttle often used as a surrogate for quinone moieties in humic substances, on transformations of Fe, S, and U under reducing conditions. Experiments were conducted in defined mineral medium containing 30 mM Fe (III), 5 mM sulfate, and 10 mM acetate, with and without 100 mu M AQDS and inoculated with sediment from the Rifle, CO, USA, Integrated Field Research Challenge (IFRC) Site. After the system reached steady state with respect to Fe (III) and sulfate reduction, aliquots of suspension were collected from each system and one set was pasteurized at 70 degrees C for 1 hr. The suspensions were then spiked with 500 mM U (VI). After 48 h, 100% of the added U was removed from solution in the non-pasteurized AQDS system. However, only 58%, 25%, and 11% of added U was removed in the no AQDS non-pasteurized, AQDS pasteurized, and no AQDS pasteurized systems, respectively. U XANES analysis of the hydrated solids indicated that, with the exception of the pasteurized system without AQDS, the majority (85-95%) of the U associated with the solids was reduced to U (IV). The results of the EXAFS analysis of U (IV) in the systems with and without AQDS (not pasteurized) are consistent with the formation of nanoparticulate uraninite. The results of this study suggest that microbial reduction was the dominant process contributing to the reduction of U (VI) over the timescale of this experiment and that the presence of AQDS enhanced both biotic and abtiotic/microbially mediated U (VI) reduction. JF - Mineralogical Magazine AU - O'Loughlin, E J AU - Boyanov, M I AU - Kwon, M J AU - Long, P E AU - Williams, K H AU - Kemner, K M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1556 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - iron KW - remediation KW - hexavalent uranium KW - XANES spectra KW - laboratory studies KW - AQDS method KW - decontamination KW - spectra KW - geochemistry KW - synthetic materials KW - electrons KW - experimental studies KW - pollutants KW - pollution KW - bioremediation KW - X-ray spectra KW - geochemical cycle KW - organic compounds KW - humic substances KW - biogenic processes KW - anthraquinone disulfonate KW - metals KW - sulfur KW - uranium KW - transformations KW - sulfides KW - actinides KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1033536035?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Effects+of+microbial+activity+and+electron+shuttles+on+the+reduction+of+U%28VI%29+under+sulfidogenic+conditions&rft.au=O%27Loughlin%2C+E+J%3BBoyanov%2C+M+I%3BKwon%2C+M+J%3BLong%2C+P+E%3BWilliams%2C+K+H%3BKemner%2C+K+M%3BAnonymous&rft.aulast=O%27Loughlin&rft.aufirst=E&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1556&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1555.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-08-16 N1 - SubjectsTermNotLitGenreText - actinides; anthraquinone disulfonate; AQDS method; biogenic processes; bioremediation; decontamination; electrons; experimental studies; geochemical cycle; geochemistry; hexavalent uranium; humic substances; iron; laboratory studies; metals; microorganisms; organic compounds; pollutants; pollution; remediation; spectra; sulfides; sulfur; synthetic materials; transformations; uranium; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Reliance of the rate of dissolution of the SON68 glass on SiO (sub 2) (aq); new quantification using interferometry AN - 1030488882; 2012-068528 AB - At present, one of the most vexing problems confronting experimentalists and modelers alike is how nuclear waste glasses will react long-term in the repository environment. Many of the experiments that underpin modeling efforts have been conducted at conditions that are not germane to answering these questions. One of the most important constituents in natural subsurface waters is dissolved silica [SiO (sub 2) (aq)], and efforts are underway to understand the dependence of the dissolution rate on this component. A method to determine rates accurately in solutions containing high concentrations of SiO (sub 2) (aq) is needed. We present evidence that rates of glass dissolution can be quantified by using a Vertical Scanning Interferometer (VSI) over a range of SiO (sub 2) (aq) concentrations. Polished glass monoliths (SON68) were exposed to solutions containing 0 to 5.46X10 (super -3) mol/L SiO (sub 2) (aq) at 90 degrees C and pH = 9. Both batch (static) and flow-through reactor systems were employed. In the former, the surface area of glass to volume of solution ratio (SA/V) was kept at a low value, ensuring that the system maintained a constant chemical affinity. In the flow-through systems, the SA/V ratio was higher and the release of elements into solution was monitored to ensure steady-state values. Dissolution rates by VSI were determined by comparing the height of the reacted surface to that of a pristine reference surface, and these rates were compared against those determined by assaying the effluent solutions from the flow-through experiments. The results revealed a close correspondence between the two methods for determining rates, and both methods indicated a linear dependence of the rates upon the concentration of SiO (sub 2) (aq) in solution [log R = -1.37 X 10 (super -2) (Si) - 5.41]. This linear dependence shows that the rate can be quantified at conditions pertinent to the disposal environment and that a mechanistic basis for predicting rates can be realized. JF - Mineralogical Magazine AU - Icenhower, Jonathan P AU - Steefel, Carl I AU - Luttge, Andreas AU - Ryan, Joe AU - Pierce, Eric M AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 1077 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - experimental studies KW - solutes KW - pollution KW - mineral-water interface KW - solution KW - interferometry KW - radioactive waste KW - ground water KW - laboratory studies KW - quantitative analysis KW - silica KW - waste disposal KW - water pollution KW - glass materials KW - geochemistry KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1030488882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Reliance+of+the+rate+of+dissolution+of+the+SON68+glass+on+SiO+%28sub+2%29+%28aq%29%3B+new+quantification+using+interferometry&rft.au=Icenhower%2C+Jonathan+P%3BSteefel%2C+Carl+I%3BLuttge%2C+Andreas%3BRyan%2C+Joe%3BPierce%2C+Eric+M%3BAnonymous&rft.aulast=Icenhower&rft.aufirst=Jonathan&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=1077&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/1076.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-03-14 N1 - SubjectsTermNotLitGenreText - experimental studies; geochemistry; glass materials; ground water; interferometry; laboratory studies; mineral-water interface; pollution; quantitative analysis; radioactive waste; silica; solutes; solution; waste disposal; water pollution ER - TY - JOUR T1 - Influence of solute-solvent interactions on mass discrimination during chemical diffusion AN - 1026864933; 2012-064591 AB - Chemical diffusion in molten silicates and aqueous solutions leads to stable isotope variations in nature because chemical diffusivities are mass dependent. For diffusion in liquids, there is no general theory that relates cation diffusivity to mass, but mass discrimination during diffusion must be affected by the nature of cation-solvent interactions. To investigate the relationship between liquid structure and cation diffusion, we measured Ca and Mg isotope diffusivities in silicate liquids using diffusion couples of natural and synthetic compositions. In all experiments, the initial isotopic composition is uniform and each isotope diffuses in the same direction down a substantial concentration gradient, enriching the Ca- or Mg-poor liquids in the lighter isotope by an amount dependent on: (1) the initial concentration contrast between liquids, (2) the relative chemical diffusivities of isotopes, and (3) the efficiency of isotopic exchange or self diffusion superimposed on chemical diffusion. Results from these experiments, in combination with results from natural volcanic liquids, show clearly that the efficiency of isotope separation (E) is systematically related to the solvent-normalized diffusivity - the ratio of the diffusivity of the cation (D (sub cation) ) to the diffusivity of silicon (D (sub Si) ). We present an idealized quantitative model to explain the relationship between E and D (sub cation) /D (sub Si) . The model views cation diffusion as a combination of two (or possibly more) distinct mechanisms of transport: "free" cations that site-hop among aluminosilicate structures, and "bound" cations that translate or rotate with aluminosilicate structures in the melt. We assume that the rate of exchange between free and bound cations is infinitely fast to maintain local equilibrium. In this model, the observed or net diffusivity and its mass dependence are determined by the relative abundance (K) of free versus bound cations in the liquid. This conceptualization provides a framework for describing mass discrimination in complex liquid systems and for understanding the role of diffusion in contributing to stable isotope variations in minerals. JF - Mineralogical Magazine AU - DePaolo, D J AU - Watkins, J M AU - Ryerson, F J AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 749 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - liquid phase KW - calcium KW - alkaline earth metals KW - magnesium KW - experimental studies KW - diffusion KW - isotopes KW - natural materials KW - solutes KW - mass KW - laboratory studies KW - solvents KW - quantitative analysis KW - metals KW - theoretical models KW - cations KW - geochemistry KW - synthetic materials KW - diffusivity KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026864933?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Influence+of+solute-solvent+interactions+on+mass+discrimination+during+chemical+diffusion&rft.au=DePaolo%2C+D+J%3BWatkins%2C+J+M%3BRyerson%2C+F+J%3BAnonymous&rft.aulast=DePaolo&rft.aufirst=D&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=749&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/712.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-07-19 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcium; cations; diffusion; diffusivity; experimental studies; geochemistry; isotopes; laboratory studies; liquid phase; magnesium; mass; metals; natural materials; quantitative analysis; silicates; solutes; solvents; synthetic materials; theoretical models ER - TY - JOUR T1 - A coupled ion exchange, surface complexation, calcite dissolution, and mass transfer model to describe uranium(VI) desorption and reactive transport at the Rifle (USA) field site AN - 1026864769; 2012-064551 AB - Predicting uranium mobility in the subsurface requires detailed knowledge of geochemical processes controlling the sorption dynamics of U(VI). This is a particular challenge in cases where aqueous solution conditions are highly variable. Desorption of U(VI) from mineral surfaces is strongly dependent on aqueous chemistry (e.g., pH, HCO (sub 3) and Ca concentrations). Further, kinetic processes such as intragranular diffusion affecting U(VI) desorption equilibrium may become increasingly important under conditions where changing solution chemistry causes relatively steep U(VI) concentration gradients. In this research we have quantified the effects of aquifer sediment properties on the transport dynamics of U(VI) under variable chemical conditions and developed a reactive transport model that can be applied to field settings. An ion exchange model was calibrated first in experiments conducted with the aquifer sediment <2 mm fraction with calcite removed. This was then applied in combination with a surface complexation model to describe U(VI) transport in laboratory columns. Chemical conditions within the columns were varied through the injection of influent solutions with differing pH, bicarbonate, and major ion concentrations. Initial conditions within the columns were impacted by slow calcite dissolution. Stopflow events during column elution demonstrated U(VI) desorption was not at local equilibrium, and U(VI) elution data were used to calibrate a distributed rate mass transfer model for U(VI) desorption, at flow rates and alkalinity concentrations relevant to the Rifle site. Oversaturation with respect to calcite was observed in this column experiment and in the Rifle aquifer. In a column experiment with high influent bicarbonate, calcite oversaturation exceeded one order of magnitude, suggesting calcite nucleation and precipitation and U(VI) co-precipitation within the column. The model was successfully applied to describe field injection experiments after correction for local surface sediment properties (surface area, ion exchange capacity, and initial adsorbed U(VI)). JF - Mineralogical Magazine AU - Davis, J A AU - Hay, M AU - Fox, P M AU - Williams, K AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 729 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - United States KW - desorption KW - Garfield County Colorado KW - radioactivity KW - coupling KW - calibration KW - solution KW - hexavalent uranium KW - ground water KW - laboratory studies KW - Rifle Colorado KW - transport KW - reactive transport KW - applications KW - ion exchange KW - mass transfer KW - water pollution KW - mobility KW - geochemistry KW - mineral surface KW - experimental studies KW - prediction KW - pollution KW - mineral-water interface KW - calcite KW - aquifers KW - models KW - metals KW - uranium KW - Colorado KW - carbonates KW - actinides KW - field studies KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026864769?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=A+coupled+ion+exchange%2C+surface+complexation%2C+calcite+dissolution%2C+and+mass+transfer+model+to+describe+uranium%28VI%29+desorption+and+reactive+transport+at+the+Rifle+%28USA%29+field+site&rft.au=Davis%2C+J+A%3BHay%2C+M%3BFox%2C+P+M%3BWilliams%2C+K%3BAnonymous&rft.aulast=Davis&rft.aufirst=J&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=729&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/712.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-07-19 N1 - SubjectsTermNotLitGenreText - actinides; applications; aquifers; calcite; calibration; carbonates; Colorado; coupling; desorption; experimental studies; field studies; Garfield County Colorado; geochemistry; ground water; hexavalent uranium; ion exchange; laboratory studies; mass transfer; metals; mineral surface; mineral-water interface; mobility; models; pollution; prediction; radioactivity; reactive transport; Rifle Colorado; solution; transport; United States; uranium; water pollution ER - TY - JOUR T1 - Linking solution composition and surface topography to the rate and mechanisms of diopside dissolution AN - 1026864732; 2012-064545 AB - Whereas the dissolution rate of silicate minerals has been extensively studied at far-from-equilibrium conditions, extrapolating such rates over a broad range of solution composition has proven challenging. Regarding diopside, recent studies [1, 2] suggested that below 125 degrees C, an unexpected drop of the rate occurred for Gibbs free energies of reaction (Delta G (sub r) ) as low as -76 kJ.mol (super -1) , with severe consequences on our ability to predict the rate of complex processes such as carbonation reactions [2]. The mechanism responsible for such a drop remains unclear and therefore needs to be deciphered. An examination of our previous data [2] led us to envisage that two different, non-exclusive aspects were worth investigating: (i) the possible passivating ability of interfacial, nm-thick Si-rich layers developed on weathered silicate surface, and (ii) the stop of etch pits formation on crystal surface, which were found to be responsible for drops of olivine [3] and albite [4] dissolution rates, respectively. Our ongoing experiments aim at better constraining these two mechanisms, and determining in turn whether one of them could explain the above-mentioned drop of diopside dissolution rate. Classical flow-through experiments with controlled SiO (sub 2) (aq) concentrations are combined with both ex situ AFM measurements and in situ monitoring of the topography of the dissolving surface of diopside in a hydrothermal AFM flow-cell (e.g. [5]). By investigating the dissolution of several cleavages, we will show how these latter techniques represent a powerful tool for studying the anisotropy of diopside dissolution, and determining which face ultimately controls its dissolution rate. An attempt to link these observations to macroscopic determination of diopside dissolution rates as a function of fluid composition will be discussed. [1] Dixit & Carroll (2007) Geochem. T, 8, 1-14. [2] Daval et al. (2010) Geochim. Cosmochim. Ac., 74, 2615-2633. [3] Daval et al. (2011) Chem. Geol., 284, 193-209. [4] Arvidson & Luttge (2010) Chem. Geol., 269, 79-88. [5] Saldi et al. (2009) Geochim. Cosmochim. Ac., 73, 5646-5657. JF - Mineralogical Magazine AU - Daval, D AU - Saldi, G D AU - Hellmann, R AU - Knauss, K G AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 726 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - experimental studies KW - mineral-water interface KW - solution KW - laboratory studies KW - pyroxene group KW - mineral cleavage KW - clinopyroxene KW - atomic force microscopy data KW - weathered materials KW - diopside KW - thermodynamic properties KW - mineral surface KW - chain silicates KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026864732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Linking+solution+composition+and+surface+topography+to+the+rate+and+mechanisms+of+diopside+dissolution&rft.au=Daval%2C+D%3BSaldi%2C+G+D%3BHellmann%2C+R%3BKnauss%2C+K+G%3BAnonymous&rft.aulast=Daval&rft.aufirst=D&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=726&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/712.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 5 N1 - Last updated - 2012-07-19 N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; chain silicates; clinopyroxene; diopside; experimental studies; laboratory studies; mineral cleavage; mineral surface; mineral-water interface; pyroxene group; silicates; solution; thermodynamic properties; weathered materials ER - TY - JOUR T1 - Sorption of Hg(II) by nanocrystalline mackinawite (tetragonal FeS) AN - 1026862457; 2012-064485 AB - Mercury is transformed to the biomagnifying species monomethyl mercury by sulphate reducing bacteria in anoxic sediments. The iron sulphide mineral, mackinawite (FeS (sub (s)) ), can limit Hg(II) bioavailability by sequestering Hg in the solid phase or by reducing it to volatile Hg (0). We use a combination of extended X-ray absorption fine structure (EXAFS) spectroscopy, density functional theory (DFT) geometry optimization and X-ray diffraction (XRD) to examine the speciation of Hg sorbed by FeS (sub (s)) as a function of Hg concentration, pH, and reaction time. Analysis of the Hg L (sub III) -edge EXAFS spectra indicates that Hg exists in multiple coordination environments upon sorption by FeS (sub (s)) , including a metacinnabar (HgS (sub (s)) )-like phase and a component that we have tentatively identified as surface bound Hg. We use DFT geometry optimization to clarify the coordination environment of the putative surface complex and our preliminary results indicate that Fe-bound Hg is energetically favoured relative to S- bound Hg, as we had previously hypothesized. Lastly, Hg L (sub III) -edge EXAFS spectra indicate Hg (0) forms in the presence of FeS (sub (s)) , while spectroscopic and diffraction analysis of FeS (sub (s)) leads us to hypothesize that Hg(II) reduction results in the formation of surface-bound Fe (super III) . This research demonstrates that Hg(II) interacts with FeS (sub (s)) through multiple mechanisms, leading to the production of both sorbed and volatile Hg species, which vary in their reactivity and bioavailability in Hg-polluted sulphidic waters. JF - Mineralogical Magazine AU - Bone, Sharon AU - Kwon, Kideok AU - Bargar, John AU - Sposito, Garrison AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 549 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - sorption KW - experimental studies KW - X-ray diffraction data KW - density functional theory KW - pollutants KW - coordination KW - pollution KW - optimization KW - bioavailability KW - reactivity KW - mackinawite KW - biogenic processes KW - metals KW - EXAFS data KW - water pollution KW - sulfides KW - nanoparticles KW - mercury KW - chemical fractionation KW - 01C:Mineralogy of non-silicates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026862457?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Sorption+of+Hg%28II%29+by+nanocrystalline+mackinawite+%28tetragonal+FeS%29&rft.au=Bone%2C+Sharon%3BKwon%2C+Kideok%3BBargar%2C+John%3BSposito%2C+Garrison%3BAnonymous&rft.aulast=Bone&rft.aufirst=Sharon&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=549&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/465.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-07-19 N1 - SubjectsTermNotLitGenreText - bioavailability; biogenic processes; chemical fractionation; coordination; density functional theory; EXAFS data; experimental studies; mackinawite; mercury; metals; nanoparticles; optimization; pollutants; pollution; reactivity; sorption; sulfides; water pollution; X-ray diffraction data ER - TY - JOUR T1 - 2-D radial analytical solutions for solute transport in a dual-porosity medium AN - 1026862267; 2012-064329 AB - This study presents 2-D analytical solutions for advective solute transport within a macropore with simultaneous radial diffusion into an unbounded soil matrix. Solutions for three conditions are derived: (1) an instantaneous release of solute into a macropore, (2) a constant concentration of solute at the top of a macropore, and (3) a pulse release of solute into a macropore. A system of two governing equations was solved by the Laplace transform method for solute concentration as a function of space and time. Substituting the asymptotic approximations of the modified Bessel functions, we also obtained approximate solutions for all three cases. For instantaneous and pulse-type releases of solutes, the solutes initially diffuse into the soil matrix and then reverse direction away from the matrix as they diminish in the macropore. The matrix behaves as a long-term contaminant source creating long tails in the breakthrough curves. Comparisons between the exact and approximate solutions for all three conditions show that the asymptotic approximations are accurate for relatively short periods of solute movement, with increasing error as time and transport distances increase. The analytical solutions were compared with one set of experimental data and also numerical simulations for contaminant transport in a cylindrical dual-porosity medium. The analytical solutions for case 3 represented the experimental data reported in the literature well. Comparisons with numerical simulations in a two-dimensional cylindrical domain that included dispersion in the macropore and advection in the matrix showed that the error caused by neglecting these two processes was minimal when a relatively low permeability matrix was considered for case 2. JF - Water Resources Research AU - Cihan, Abdullah AU - Tyner, John S Y1 - 2011 PY - 2011 DA - 2011 EP - Citation W04507 PB - American Geophysical Union, Washington, DC VL - 47 IS - 4 SN - 0043-1397, 0043-1397 KW - solute transport KW - hydrology KW - diffusion KW - numerical models KW - unsaturated zone KW - mathematical models KW - preferential flow KW - Laplace transformations KW - porosity KW - two-dimensional models KW - ground water KW - transport KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026862267?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=2-D+radial+analytical+solutions+for+solute+transport+in+a+dual-porosity+medium&rft.au=Cihan%2C+Abdullah%3BTyner%2C+John+S&rft.aulast=Cihan&rft.aufirst=Abdullah&rft.date=2011-01-01&rft.volume=47&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2009WR008969 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-07-19 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - diffusion; ground water; hydrology; Laplace transformations; mathematical models; numerical models; porosity; preferential flow; solute transport; transport; two-dimensional models; unsaturated zone DO - http://dx.doi.org/10.1029/2009WR008969 ER - TY - JOUR T1 - Molecular dynamics simulations of the electrical double layer on smectite clay surfaces AN - 1026856954; 2012-064513 AB - We report new molecular dynamics (MD) simulation results elucidating the structure of the electrical double layer (EDL) on smectite surfaces contacting mixed NaCl-CaCl (sub 2) electrolyte solutions in the range of concentrations relevant to pore waters in ocean sediments and in geologic repositories for CO (sub 2) or high-level radioactive waste (0.34 to 1.83 mol (sub c) dm (super -3) ). Our simulations used methodologies known to correctly describe the structure and diffusion coefficients of water and solutes in smectite interlayer nanopores [1]. Our results confirm the existence of three distinct ion adsorption planes (0-, beta -, and d-planes), often assumed in EDL models [2,3], but with two important qualifications: (1) the location of the beta -, and d-planes are independent of ionic strength or ion type and (2) "indifferent electrolyte" ions can occupy all three planes. Charge inversion occurred in the diffuse ion swarm because of the affinity of the clay surface for CaCl (super +) ion pairs. Therefore, at concentrations > or = 0.34 mol (sub c) dm (super -3) , properties arising from long-range electrostatics at interfaces (electrophoresis, electro-osmosis, co-ion exclusion, colloidal aggregation) will not be correctly predicted by most EDL models. Co-ion exclusion, typically neglected by surface speciation models, balanced a large part of the clay mineral structural charge in the more concentrated solutions. Water molecules and ions diffused relatively rapidly even in the first statistical water monolayer, contradicting reports of rigid "ice-like" structure for water on clay mineral surfaces. [1] Bourg & Sposito (2010) Environ. Sci. Technol. 44, 2085. [2] Sverjensky (2006) Geochim. Cosmochim. Acta 70, 2427. [3] Goldberg et al. (2007) Vadose Zone J. 6, 407. JF - Mineralogical Magazine AU - Bourg, Ian C AU - Sposito, Garrison AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 SP - 563 PB - Mineralogical Society, London VL - 75 IS - 3 SN - 0026-461X, 0026-461X KW - silicates KW - mineral interlayer KW - electro-osmosis KW - electrical properties KW - diffusion KW - colloidal materials KW - electrophoresis KW - clay mineralogy KW - data processing KW - smectite KW - mineral-water interface KW - crystal structure KW - adsorption KW - radioactive waste KW - clay minerals KW - digital simulation KW - interfaces KW - sheet silicates KW - molecular dynamics KW - waste disposal KW - mineral surface KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026856954?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Mineralogical+Magazine&rft.atitle=Molecular+dynamics+simulations+of+the+electrical+double+layer+on+smectite+clay+surfaces&rft.au=Bourg%2C+Ian+C%3BSposito%2C+Garrison%3BAnonymous&rft.aulast=Bourg&rft.aufirst=Ian&rft.date=2011-01-01&rft.volume=75&rft.issue=3&rft.spage=563&rft.isbn=&rft.btitle=&rft.title=Mineralogical+Magazine&rft.issn=0026461X&rft_id=info:doi/ L2 - http://minmag.geoscienceworld.org/content/75/3/465.full.pdf+html http://www.minersoc.org/pages/e_journals/minmag.html LA - English DB - GeoRef N1 - Conference title - Goldschmidt2011 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland N1 - Date revised - 2012-01-01 N1 - Number of references - 3 N1 - Last updated - 2012-07-19 N1 - SubjectsTermNotLitGenreText - adsorption; clay mineralogy; clay minerals; colloidal materials; crystal structure; data processing; diffusion; digital simulation; electrical properties; electro-osmosis; electrophoresis; interfaces; mineral interlayer; mineral surface; mineral-water interface; molecular dynamics; radioactive waste; sheet silicates; silicates; smectite; waste disposal ER - TY - JOUR T1 - Extensive organic molecular evolution in different Tagish Lake Meteorite fragments AN - 1020539809; 2012-057628 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Kebukawa, Y AU - Cody, G D AU - Alexander, C M O AU - Nittler, L R AU - Herd, C D K AU - Kilcoyne, A L D AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 EP - Paper 2455 PB - Lunar and Planetary Science Conference, Houston, TX VL - 42 KW - alteration KW - stony meteorites KW - aliphatic hydrocarbons KW - Tagish Lake Meteorite KW - substitution KW - NMR spectra KW - XANES spectra KW - meteorites KW - carbon KW - spectra KW - heterogeneity KW - chondrites KW - aromatization KW - parent bodies KW - carbonaceous chondrites KW - solubility KW - X-ray spectra KW - MAS NMR spectra KW - molecular structure KW - organic compounds KW - hydrogen KW - fragments KW - hydrocarbons KW - aromatic hydrocarbons KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020539809?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Extensive+organic+molecular+evolution+in+different+Tagish+Lake+Meteorite+fragments&rft.au=Kebukawa%2C+Y%3BCody%2C+G+D%3BAlexander%2C+C+M+O%3BNittler%2C+L+R%3BHerd%2C+C+D+K%3BKilcoyne%2C+A+L+D%3BAnonymous&rft.aulast=Kebukawa&rft.aufirst=Y&rft.date=2011-01-01&rft.volume=42&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2011/pdf/2455.pdf LA - English DB - GeoRef N1 - Conference title - Forty-second lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 3 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Oct. 4, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alteration; aromatic hydrocarbons; aromatization; carbon; carbonaceous chondrites; chondrites; fragments; heterogeneity; hydrocarbons; hydrogen; MAS NMR spectra; meteorites; molecular structure; NMR spectra; organic compounds; parent bodies; solubility; spectra; stony meteorites; substitution; Tagish Lake Meteorite; X-ray spectra; XANES spectra ER - TY - JOUR T1 - DOE real-time seismic monitoring at enhanced geothermal system sites AN - 1008819762; 2012-039671 JF - Proceedings - Workshop on Geothermal Reservoir Engineering AU - Nathwani, Jay AU - Majer, Ernest AU - Boyle, Katie AU - Rock, Don AU - Peterson, John AU - Jarpe, Stephen AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 PB - Stanford University, Stanford Geothermal Program, Stanford, CA VL - 191 SN - 1058-2525, 1058-2525 KW - monitoring KW - Monte Carlo analysis KW - geothermal wells KW - statistical analysis KW - geophysical methods KW - structural controls KW - enhanced recovery KW - pipelines KW - seismic methods KW - models KW - geothermal energy KW - fractures KW - geothermal reservoirs KW - energy sources KW - design KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.atitle=DOE+real-time+seismic+monitoring+at+enhanced+geothermal+system+sites&rft.au=Nathwani%2C+Jay%3BMajer%2C+Ernest%3BBoyle%2C+Katie%3BRock%2C+Don%3BPeterson%2C+John%3BJarpe%2C+Stephen%3BAnonymous&rft.aulast=Nathwani&rft.aufirst=Jay&rft.date=2011-01-01&rft.volume=191&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.issn=10582525&rft_id=info:doi/ L2 - http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2011/nathwani.pdf LA - English DB - GeoRef N1 - Conference title - 36th workshop on Geothermal reservoir engineering N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Stanford Geothermal Program workshop report SGP-TR-191 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - design; energy sources; enhanced recovery; fractures; geophysical methods; geothermal energy; geothermal reservoirs; geothermal wells; models; monitoring; Monte Carlo analysis; pipelines; seismic methods; statistical analysis; structural controls ER - TY - JOUR T1 - Preliminary investigation of an aseismic "doughnut hole" region in the northwest Geysers, California AN - 1008819734; 2012-039582 JF - Proceedings - Workshop on Geothermal Reservoir Engineering AU - Boyle, Katie AU - Jarpe, Stephen AU - Hutchings, Lawrence AU - Peterson, John AU - Majer, Ernest AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 PB - Stanford University, Stanford Geothermal Program, Stanford, CA VL - 191 SN - 1058-2525, 1058-2525 KW - United States KW - three-dimensional models KW - enhanced recovery KW - production KW - thermal waters KW - ground water KW - geothermal energy KW - California KW - geothermal fields KW - geothermal reservoirs KW - fluid injection KW - The Geysers KW - geothermal exploration KW - seismicity KW - energy sources KW - microseisms KW - reservoir properties KW - permeability KW - arrays KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819734?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.atitle=Preliminary+investigation+of+an+aseismic+%22doughnut+hole%22+region+in+the+northwest+Geysers%2C+California&rft.au=Boyle%2C+Katie%3BJarpe%2C+Stephen%3BHutchings%2C+Lawrence%3BPeterson%2C+John%3BMajer%2C+Ernest%3BAnonymous&rft.aulast=Boyle&rft.aufirst=Katie&rft.date=2011-01-01&rft.volume=191&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.issn=10582525&rft_id=info:doi/ L2 - http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2011/boyle.pdf LA - English DB - GeoRef N1 - Conference title - 36th workshop on Geothermal reservoir engineering N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 20 N1 - PubXState - CA N1 - Document feature - illus. incl. sketch maps N1 - SuppNotes - Stanford Geothermal Program workshop report SGP-TR-191 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - arrays; California; energy sources; enhanced recovery; fluid injection; geothermal energy; geothermal exploration; geothermal fields; geothermal reservoirs; ground water; microseisms; permeability; production; reservoir properties; seismicity; The Geysers; thermal waters; three-dimensional models; United States ER - TY - JOUR T1 - Investigating biomineralization using synchrotron based X-ray computed microtomography AN - 1008819013; 2012-040769 AB - This work presents the results of a study where synchrotron based x-ray computed microtomography (CMT) was used to investigate changes in pore morphology during calcium carbonate biomineralization. We simultaneously examine changes in pore microstructure and bulk permeability within glass bead columns during biogenic CaCO (sub 3) precipitation induced by Sporosarcina pasteurii. We observe a three order of magnitude reduction in permeability over relatively short time-scales ( approximately 60 hrs) during the carbonate precipitation process. The resulting precipitates were a micro-porous composite of spherical and cubic CaCO (sub 3) precipitates. CMT images taken during precipitation were analyzed for effective pore radii, effective throat radii, and other pore-scale characteristics using 3DMA-ROCK. The Kozeny-Carman relation provided a poor fit to the raw permeability data, however, once this function was augmented with geometric information extracted from CMT imagery a better fit was provided suggesting that pore geometry should be considered temporally variable when modeling permeability change during biomineralization. JF - Geophysical Research Letters AU - Armstrong, Ryan AU - Ajo-Franklin, Jonathan Y1 - 2011 PY - 2011 DA - 2011 EP - Citation L08406 PB - American Geophysical Union, Washington, DC VL - 38 IS - 8 SN - 0094-8276, 0094-8276 KW - tomography KW - biomineralization KW - biogenic processes KW - X-ray data KW - precipitation KW - crystal structure KW - calcium carbonate KW - carbonates KW - porosity KW - permeability KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Investigating+biomineralization+using+synchrotron+based+X-ray+computed+microtomography&rft.au=Armstrong%2C+Ryan%3BAjo-Franklin%2C+Jonathan&rft.aulast=Armstrong&rft.aufirst=Ryan&rft.date=2011-01-01&rft.volume=38&rft.issue=8&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2011GL046916 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 42 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - biogenic processes; biomineralization; calcium carbonate; carbonates; crystal structure; permeability; porosity; precipitation; tomography; X-ray data DO - http://dx.doi.org/10.1029/2011GL046916 ER - TY - JOUR T1 - Laboratory experimental study of heat extraction from porous media by means of CO (sub 2) AN - 1008818731; 2012-039594 JF - Proceedings - Workshop on Geothermal Reservoir Engineering AU - Magliocco, Mario AU - Kneafsey, Timothy J AU - Pruess, Karsten AU - Glaser, Steven AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 PB - Stanford University, Stanford Geothermal Program, Stanford, CA VL - 191 SN - 1058-2525, 1058-2525 KW - United States KW - experimental studies KW - monitoring KW - elasticity KW - poroelasticity KW - geothermal wells KW - enhanced recovery KW - production KW - porosity KW - carbon dioxide KW - geothermal energy KW - laboratory studies KW - geothermal reservoirs KW - fluid injection KW - energy sources KW - reservoir properties KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818731?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.atitle=Laboratory+experimental+study+of+heat+extraction+from+porous+media+by+means+of+CO+%28sub+2%29&rft.au=Magliocco%2C+Mario%3BKneafsey%2C+Timothy+J%3BPruess%2C+Karsten%3BGlaser%2C+Steven%3BAnonymous&rft.aulast=Magliocco&rft.aufirst=Mario&rft.date=2011-01-01&rft.volume=191&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.issn=10582525&rft_id=info:doi/ L2 - http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2011/magliocco.pdf LA - English DB - GeoRef N1 - Conference title - 36th workshop on Geothermal reservoir engineering N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 14 N1 - PubXState - CA N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Stanford Geothermal Program workshop report SGP-TR-191 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon dioxide; elasticity; energy sources; enhanced recovery; experimental studies; fluid injection; geothermal energy; geothermal reservoirs; geothermal wells; laboratory studies; monitoring; poroelasticity; porosity; production; reservoir properties; United States ER - TY - JOUR T1 - Impact of fluid-rock interactions on enhanced geothermal systems with CO (sub 2) as heat transmission fluid AN - 1008817459; 2012-039593 JF - Proceedings - Workshop on Geothermal Reservoir Engineering AU - Wan, Yuyu AU - Xu, Tianfu AU - Pruess, Karsten AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 PB - Stanford University, Stanford Geothermal Program, Stanford, CA VL - 191 SN - 1058-2525, 1058-2525 KW - United States KW - monitoring KW - numerical models KW - geothermal wells KW - enhanced recovery KW - fluid dynamics KW - production KW - temperature KW - carbon dioxide KW - geothermal energy KW - geothermal reservoirs KW - fluid injection KW - Reno Nevada KW - energy sources KW - heat transfer KW - Desert Peak Field KW - Washoe County Nevada KW - Nevada KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817459?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.atitle=Impact+of+fluid-rock+interactions+on+enhanced+geothermal+systems+with+CO+%28sub+2%29+as+heat+transmission+fluid&rft.au=Wan%2C+Yuyu%3BXu%2C+Tianfu%3BPruess%2C+Karsten%3BAnonymous&rft.aulast=Wan&rft.aufirst=Yuyu&rft.date=2011-01-01&rft.volume=191&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.issn=10582525&rft_id=info:doi/ L2 - http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2011/wanyuyu.pdf LA - English DB - GeoRef N1 - Conference title - 36th workshop on Geothermal reservoir engineering N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 28 N1 - PubXState - CA N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Stanford Geothermal Program workshop report SGP-TR-191 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon dioxide; Desert Peak Field; energy sources; enhanced recovery; fluid dynamics; fluid injection; geothermal energy; geothermal reservoirs; geothermal wells; heat transfer; monitoring; Nevada; numerical models; production; Reno Nevada; temperature; United States; Washoe County Nevada ER - TY - JOUR T1 - Modeling geochemical processes in enhanced geothermal systems with CO (sub 2) as heat transfer fluid AN - 1008817451; 2012-039592 JF - Proceedings - Workshop on Geothermal Reservoir Engineering AU - Apps, John AU - Pruess, Karsten AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 PB - Stanford University, Stanford Geothermal Program, Stanford, CA VL - 191 SN - 1058-2525, 1058-2525 KW - host rocks KW - geothermal wells KW - enhanced recovery KW - metasomatism KW - thermal waters KW - reservoir rocks KW - carbon dioxide KW - models KW - geothermal energy KW - physical properties KW - geothermal reservoirs KW - fluid injection KW - energy sources KW - chemical properties KW - reservoir properties KW - hydrothermal alteration KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817451?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.atitle=Modeling+geochemical+processes+in+enhanced+geothermal+systems+with+CO+%28sub+2%29+as+heat+transfer+fluid&rft.au=Apps%2C+John%3BPruess%2C+Karsten%3BAnonymous&rft.aulast=Apps&rft.aufirst=John&rft.date=2011-01-01&rft.volume=191&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.issn=10582525&rft_id=info:doi/ L2 - http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2011/apps.pdf LA - English DB - GeoRef N1 - Conference title - 36th workshop on Geothermal reservoir engineering N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 18 N1 - PubXState - CA N1 - Document feature - illus. N1 - SuppNotes - Stanford Geothermal Program workshop report SGP-TR-191 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon dioxide; chemical properties; energy sources; enhanced recovery; fluid injection; geothermal energy; geothermal reservoirs; geothermal wells; host rocks; hydrothermal alteration; metasomatism; models; physical properties; reservoir properties; reservoir rocks; thermal waters ER - TY - JOUR T1 - A model for thermophysical properties of CO (sub 2) -brine mixtures at elevated temperatures and pressures AN - 1008817442; 2012-039591 JF - Proceedings - Workshop on Geothermal Reservoir Engineering AU - Spycher, Nicolas AU - Pruess, Karsten AU - Anonymous Y1 - 2011 PY - 2011 DA - 2011 PB - Stanford University, Stanford Geothermal Program, Stanford, CA VL - 191 SN - 1058-2525, 1058-2525 KW - water KW - pressure KW - enhanced recovery KW - solubility KW - production KW - high pressure KW - temperature KW - carbon dioxide KW - models KW - geothermal energy KW - enthalpy KW - energy sources KW - brines KW - water content KW - thermomechanical properties KW - reservoir properties KW - high temperature KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817442?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.atitle=A+model+for+thermophysical+properties+of+CO+%28sub+2%29+-brine+mixtures+at+elevated+temperatures+and+pressures&rft.au=Spycher%2C+Nicolas%3BPruess%2C+Karsten%3BAnonymous&rft.aulast=Spycher&rft.aufirst=Nicolas&rft.date=2011-01-01&rft.volume=191&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Proceedings+-+Workshop+on+Geothermal+Reservoir+Engineering&rft.issn=10582525&rft_id=info:doi/ L2 - http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2011/pruess.pdf LA - English DB - GeoRef N1 - Conference title - 36th workshop on Geothermal reservoir engineering N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 18 N1 - PubXState - CA N1 - Document feature - illus. N1 - SuppNotes - Stanford Geothermal Program workshop report SGP-TR-191 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - brines; carbon dioxide; energy sources; enhanced recovery; enthalpy; geothermal energy; high pressure; high temperature; models; pressure; production; reservoir properties; solubility; temperature; thermomechanical properties; water; water content ER - TY - JOUR T1 - Metabolome-Proteome Differentiation Coupled to Microbial Divergence AN - 907151805; 14170086 AB - ABSTRACT: Tandem high-throughput proteomics and metabolomics were employed to functionally characterize natural microbial biofilm communities. Distinct molecular signatures exist for each analyzed sample. Deconvolution of the high-resolution molecular data demonstrates that identified proteins and detected metabolites exhibit organism-specific correlation patterns. These patterns are reflective of the functional differentiation of two bacterial species that share the same genus and that co-occur in the sampled microbial communities. Our analyses indicate that the two species have similar niche breadths and are not in strong competition with one another. IMPORTANCE Natural microbial assemblages represent dynamic consortia that exhibit extensive complexity at all levels. In the present study, we demonstrate that correlations between protein and metabolite abundances allow the deconvolution of complex molecular data sets into shared and organism-specific contingents. We demonstrate that evolutionary divergence is associated with the restructuring of cellular metabolic networks, which in turn allows bacterial species to occupy distinct ecological niches. The apparent lack of interspecific competition may explain the extensive population-level genetic heterogeneity observed extensively within microbial communities. The reported findings have broad implications for the in-depth investigation of the ecology and evolution of distinct microbial community members and for leveraging the solution of cryptic metabolic processes in the future. IMPORTANCE: Natural microbial assemblages represent dynamic consortia that exhibit extensive complexity at all levels. In the present study, we demonstrate that correlations between protein and metabolite abundances allow the deconvolution of complex molecular data sets into shared and organism-specific contingents. We demonstrate that evolutionary divergence is associated with the restructuring of cellular metabolic networks, which in turn allows bacterial species to occupy distinct ecological niches. The apparent lack of interspecific competition may explain the extensive population-level genetic heterogeneity observed extensively within microbial communities. The reported findings have broad implications for the in-depth investigation of the ecology and evolution of distinct microbial community members and for leveraging the solution of cryptic metabolic processes in the future. JF - mBio AU - Wilmes, Paul AU - Bowen, Benjamin P AU - Thomas, Brian C AU - Mueller, Ryan S AU - Denef, Vincent J AU - VerBerkmoes, Nathan C AU - Hettich, Robert L AU - Northen, Trent R AU - Banfield, Jillian F AD - Department of Earth and Planetary Science, University of California, Berkeley, California, USA Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA Department of Environmental Science, Policy and Management, University of California, Berkeley, California, USA Y1 - 2010/12/30/ PY - 2010 DA - 2010 Dec 30 SP - e00246 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 1 IS - 5 SN - 2150-7511, 2150-7511 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Biofilms KW - Evolution KW - A 01450:Environmental Pollution & Waste Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907151805?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=mBio&rft.atitle=Metabolome-Proteome+Differentiation+Coupled+to+Microbial+Divergence&rft.au=Wilmes%2C+Paul%3BBowen%2C+Benjamin+P%3BThomas%2C+Brian+C%3BMueller%2C+Ryan+S%3BDenef%2C+Vincent+J%3BVerBerkmoes%2C+Nathan+C%3BHettich%2C+Robert+L%3BNorthen%2C+Trent+R%3BBanfield%2C+Jillian+F&rft.aulast=Wilmes&rft.aufirst=Paul&rft.date=2010-12-30&rft.volume=1&rft.issue=5&rft.spage=e00246&rft.isbn=&rft.btitle=&rft.title=mBio&rft.issn=21507511&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2014-03-24 N1 - SubjectsTermNotLitGenreText - Evolution ER - TY - JOUR T1 - Genome Sequence of the Obligate Methanotroph Methylosinus trichosporium Strain OB3b AN - 864952516; 14045458 AB - Methylosinus trichosporium OB3b (for "oddball" strain 3b) is an obligate aerobic methane-oxidizing alphaproteobacterium that was originally isolated in 1970 by Roger Whittenbury and colleagues. This strain has since been used extensively to elucidate the structure and function of several key enzymes of methane oxidation, including both particulate and soluble methane monooxygenase (sMMO) and the extracellular copper chelator methanobactin. In particular, the catalytic properties of soluble methane monooxygenase from M. trichosporium OB3b have been well characterized in context with biodegradation of recalcitrant hydrocarbons, such as trichloroethylene. The sequence of the M. trichosporium OB3b genome is the first reported from a member of the Methylocystaceae family in the order RHIZOBIALES: JF - Journal of Bacteriology AU - Stein, Lisa Y AU - Yoon, Sukhwan AU - Semrau, Jeremy D AU - DiSpirito, Alan A AU - Crombie, Andrew AU - Murrell, JColin AU - Vuilleumier, Stephane AU - Kalyuzhnaya, Marina G AU - Op den Camp, Huub JM AU - Bringel, Francoise AU - Bruce, D AU - Cheng, J-F AU - Copeland, A AU - Goodwin, Lynne AU - Han, Shunsheng AU - Hauser, Loren AU - Jetten, Mike SM AU - Lajus, Aurelie AU - Land, M L AU - Lapidus, A AU - Lucas, S AU - Medigue, Claudine AU - Pitluck, S AU - Woyke, Tanja AU - Zeytun, Ahmet AU - Klotz, Martin G AD - Department of Biological Sciences, University of Alberta, Edmonton, Alberta T6G 2E9, Canada. Department of Civil and Environmental Engineering, The University of Michigan, 1351 Beal Avenue, Ann Arbor, Michigan 48109-2125. Department of Biochemistry, Biophysics and Molecular Biology, University of Iowa, Ames, Iowa 50011. Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, United Kingdom. Universite de Strasbourg, UMR 7156 CNRS, 67000 Strasbourg, France. Department of Microbiology, University of Washington, Seattle, Washington 98195. Department of Microbiology, IWWR, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, Netherlands. Los Alamos National Laboratory, Joint Genome Institute, Biosciences Division Genome Science B6, Los Alamos, New Mexico 87545. U.S. DOE Joint Genome Institute, 2800 Mitchell Drive B310, Walnut Creek, California 94598-1698. Oak Ridge National Laboratory, Biosciences Division, Oak Ridge, Tennessee 37831. Laboratoire d'Analyses Bioinformat Y1 - 2010/12/15/ PY - 2010 DA - 2010 Dec 15 SP - 6497 EP - 6498 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 192 IS - 24 SN - 0021-9193, 0021-9193 KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - Genomes KW - Methane KW - Biodegradation KW - Hydrocarbons KW - Nucleotide sequence KW - soluble methane monooxygenase KW - Enzymes KW - Methylocystaceae KW - Copper KW - Chelating agents KW - Methanotrophic bacteria KW - Structure-function relationships KW - Oxidation KW - Trichloroethylene KW - Methylosinus trichosporium KW - J 02320:Cell Biology KW - N 14845:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864952516?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.atitle=Characterization+of+the+August+2009+New+Mexico+earthquake+swarm+in+the+central+Rio+Grande+Rift&rft.au=Stankova-Pursley%2C+Janas%3BBilek%2C+S+L%3BRuhl%2C+Christine+J%3BAster%2C+R+C%3BRowe%2C+Christie+D%3BJohnson%2C+Jeff+B%3BAnonymous&rft.aulast=Stankova-Pursley&rft.aufirst=Janas&rft.date=2009-01-01&rft.volume=90&rft.issue=52%2C+SUPPL.&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eos%2C+Transactions%2C+American+Geophysical+Union&rft.issn=00963941&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2013-07-15 N1 - SubjectsTermNotLitGenreText - Genomes; Methane; Biodegradation; Hydrocarbons; soluble methane monooxygenase; Nucleotide sequence; Enzymes; Copper; Chelating agents; Methanotrophic bacteria; Structure-function relationships; Oxidation; Trichloroethylene; Methylocystaceae; Methylosinus trichosporium ER - TY - JOUR T1 - Technoeconomic analysis of biofuels: A wiki-based platform for lignocellulosic biorefineries AN - 954592515; 13934984 AB - We present a process model for a lignocellulosic ethanol biorefinery that is open to the biofuels academic community. Beyond providing a series of static results, the wiki-based platform provides a dynamic and transparent tool for analyzing, exploring, and communicating the impact of process advances and alternatives for biofuels production. The model is available for download (at http://econ.jbei.org) and will be updated based on feedback from the community of experts in biofuel-related fields. By making the assumptions and performance metrics of this model transparent, we anticipate this tool can provide a consensus on the energy-related, environmental, and economic performance of lignocellulosic ethanol. JF - Biomass and Bioenergy AU - Klein-Marcuschamer, Daniel AU - Oleskowicz-Popiel, Piotr AU - Simmons, Blake A AU - Blanch, Harvey W AD - Joint Bioenergy Institute, 5885 Hollis St. Emeryville, CA 94608, USA, blanch@berkeley.edu Y1 - 2010/12// PY - 2010 DA - Dec 2010 SP - 1914 EP - 1921 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 34 IS - 12 SN - 0961-9534, 0961-9534 KW - Environment Abstracts; Biotechnology and Bioengineering Abstracts; Sustainability Science Abstracts KW - Biofuels KW - Technoeconomic analysis KW - Lignocellulosic ethanol KW - Process models KW - Wiki KW - Biorefineries KW - Fuel technology KW - Economics KW - biofuels KW - Feedback KW - Biomass KW - Models KW - Ethanol KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development KW - W 30945:Fermentation & Cell Culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/954592515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biomass+and+Bioenergy&rft.atitle=Technoeconomic+analysis+of+biofuels%3A+A+wiki-based+platform+for+lignocellulosic+biorefineries&rft.au=Klein-Marcuschamer%2C+Daniel%3BOleskowicz-Popiel%2C+Piotr%3BSimmons%2C+Blake+A%3BBlanch%2C+Harvey+W&rft.aulast=Klein-Marcuschamer&rft.aufirst=Daniel&rft.date=2010-12-01&rft.volume=34&rft.issue=12&rft.spage=1914&rft.isbn=&rft.btitle=&rft.title=Biomass+and+Bioenergy&rft.issn=09619534&rft_id=info:doi/10.1016%2Fj.biombioe.2010.07.033 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Economics; Feedback; Biomass; Biofuels; Ethanol; Models; Fuel technology; biofuels DO - http://dx.doi.org/10.1016/j.biombioe.2010.07.033 ER - TY - JOUR T1 - Fluid pressure arrival-time tomography; estimation and assessment in the presence of inequality constraints with an application to production at the Krechba Field, Algeria AN - 861989022; 2011-036527 AB - Deformation in the overburden proves useful in deducing spatial and temporal changes in the volume of a producing reservoir. Based on these changes, we have estimated diffusive traveltimes associated with the transient flow due to production, and then, as the solution of a linear inverse problem, the effective permeability of the reservoir. An advantage of the approach based on traveltimes, as opposed to one based on the amplitude of surface deformation, is that it is much less sensitive to the exact geomechanical properties of the reservoir and overburden. Inequalities constrain the inversion, under the assumption that the fluid production only results in pore volume decreases within the reservoir. The formulation has been applied to satellite-based estimates of deformation in the material overlying a thin gas production zone at the Krechba Field in Algeria. The peak displacement after three years of gas production is found to be approximately 0.5 cm, overlying the eastern margin of the anticlinal structure defining the gas field. Using data from 15 irregularly spaced images of range change, we have calculated the diffusive traveltimes associated with the startup of a gas production well. The inequality constraints were incorporated into the estimates of model parameter resolution and covariance, improving the resolution by roughly 30% to 40%. JF - Geophysics AU - Rucci, Alessio AU - Vasco, D W AU - Novali, Fabrizio Y1 - 2010/12// PY - 2010 DA - December 2010 SP - O39 EP - O55 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 75 IS - 6 SN - 0016-8033, 0016-8033 KW - tomography KW - overburden KW - North Africa KW - Monte Carlo analysis KW - statistical analysis KW - geophysical methods KW - data processing KW - petroleum KW - inverse problem KW - fluid phase KW - elastic waves KW - deformation KW - production KW - oil and gas fields KW - seismic methods KW - reservoir rocks KW - Krechba Field KW - fluid pressure KW - digital simulation KW - Africa KW - arrival time KW - Algeria KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861989022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Fluid+pressure+arrival-time+tomography%3B+estimation+and+assessment+in+the+presence+of+inequality+constraints+with+an+application+to+production+at+the+Krechba+Field%2C+Algeria&rft.au=Rucci%2C+Alessio%3BVasco%2C+D+W%3BNovali%2C+Fabrizio&rft.aulast=Rucci&rft.aufirst=Alessio&rft.date=2010-12-01&rft.volume=75&rft.issue=6&rft.spage=O39&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3493504 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 54 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - Africa; Algeria; arrival time; data processing; deformation; digital simulation; elastic waves; fluid phase; fluid pressure; geophysical methods; inverse problem; Krechba Field; Monte Carlo analysis; North Africa; oil and gas fields; overburden; petroleum; production; reservoir rocks; seismic methods; statistical analysis; tomography DO - http://dx.doi.org/10.1190/1.3493504 ER - TY - JOUR T1 - Pore-fluid effects on seismic waves in vertically fractured earth with orthotropic symmetry AN - 861988011; 2011-036569 AB - For elastically noninteracting vertical-fracture sets at arbitrary orientation angles to each other, a detailed model is presented in which the resulting anisotropic fractured medium generally has orthorhombic symmetry overall. Some of the analysis methods and ideas of Schoenberg are emphasized, together with their connections to other similarly motivated and conceptually related methods by Sayers and Kachanov, among others. Examples show how parallel vertical-fracture sets having HTI (horizontal transversely isotropic) symmetry transform into orthotropic fractured media if some subsets of the vertical fractures are misaligned with the others, and then the fractured system can have VTI (vertical transversely isotropic) symmetry if all of the fractures are aligned randomly or half parallel and half perpendicular to a given vertical plane. An orthotropic example having vertical fractures in an otherwise VTI earth system (studied previously by Schoenberg and Helbig) is compared with the other examples treated and it is finally shown how fluids in the fractures affect the orthotropic poroelastic system response to seismic waves. The key result is that fracture-influence parameters are multiplied by a factor of Skempton's second coefficient for poroelastic media. Skempton's coefficient is itself a measurable characteristic of fluid-saturated porous rocks, depending on porosity, solid moduli, and the pore-fluid bulk modulus. For heterogeneous porous media, connections between the present work and earlier related results of Brown and Korringa are also established. JF - Geophysics AU - Berryman, James G Y1 - 2010/12// PY - 2010 DA - December 2010 SP - T185 EP - T200 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 75 IS - 6 SN - 0016-8033, 0016-8033 KW - fractured materials KW - elasticity KW - numerical analysis KW - poroelasticity KW - geophysical methods KW - mathematical models KW - elastic waves KW - porosity KW - seismic methods KW - reservoir rocks KW - fractures KW - theoretical studies KW - physical properties KW - mathematical methods KW - propagation KW - symmetry KW - seismic waves KW - pore water KW - anisotropy KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861988011?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Pore-fluid+effects+on+seismic+waves+in+vertically+fractured+earth+with+orthotropic+symmetry&rft.au=Berryman%2C+James+G&rft.aulast=Berryman&rft.aufirst=James&rft.date=2010-12-01&rft.volume=75&rft.issue=6&rft.spage=T185&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3506529 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 52 N1 - PubXState - OK N1 - Document feature - illus. incl. 4 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - anisotropy; elastic waves; elasticity; fractured materials; fractures; geophysical methods; mathematical methods; mathematical models; numerical analysis; physical properties; pore water; poroelasticity; porosity; propagation; reservoir rocks; seismic methods; seismic waves; symmetry; theoretical studies DO - http://dx.doi.org/10.1190/1.3506529 ER - TY - JOUR T1 - Low-frequency fluid waves in fractures and pipes AN - 861987931; 2011-036526 AB - Low-frequency analytical solutions have been obtained for phase velocities of symmetrical fluid waves within both an infinite fracture and a pipe filled with a viscous fluid. Three different fluid wave regimes can exist in such objects, depending on the various combinations of parameters, such as fluid density, fluid viscosity, walls shear modulus, channel thickness, and frequency. Equations for velocities of all these regimes have explicit forms and are verified by comparisons with the exact solutions. The dominant role of fractures in rock permeability at field scales and the strong amplitude and frequency effects of Stoneley guided waves suggest the importance of including these wave effects into poroelastic theories. JF - Geophysics AU - Korneev (Korneyev), Valeri (Valeriy) Y1 - 2010/12// PY - 2010 DA - December 2010 SP - N97 EP - N107 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 75 IS - 6 SN - 0016-8033, 0016-8033 KW - velocity analysis KW - guided waves KW - geophysical methods KW - fluid phase KW - elastic waves KW - equations KW - seismic methods KW - fractures KW - surface waves KW - Stoneley waves KW - Biot theory KW - mathematical methods KW - velocity KW - propagation KW - seismic waves KW - permeability KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861987931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Low-frequency+fluid+waves+in+fractures+and+pipes&rft.au=Korneev+%28Korneyev%29%2C+Valeri+%28Valeriy%29&rft.aulast=Korneev+%28Korneyev%29&rft.aufirst=Valeri&rft.date=2010-12-01&rft.volume=75&rft.issue=6&rft.spage=N97&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3484155 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 33 N1 - PubXState - OK N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - Biot theory; elastic waves; equations; fluid phase; fractures; geophysical methods; guided waves; mathematical methods; permeability; propagation; seismic methods; seismic waves; Stoneley waves; surface waves; velocity; velocity analysis DO - http://dx.doi.org/10.1190/1.3484155 ER - TY - JOUR T1 - Environmental and biological controls on Mg and Li in deep-sea scleractinian corals AN - 861986958; 2011-034568 AB - Deep-sea scleractinian corals precipitate aragonite skeletons that provide valuable archives of past ocean conditions. During calcification biological mediation causes variability in trace metal incorporation and isotopic ratios of the aragonite such that signals caused by environmental controls can be overwhelmed. This complicates the interpretation of geochemical proxies used for paleo-reconstructions. In this study we examine the environmental controls on the Mg/Li ratio of 34 individuals from seven genera of deep-sea scleractinian corals: Desmophyllum, Balanophyllia, Caryophyllia, Enallopsammia, Flabellum, Trochocyanthus, and Lophelia. In addition we examine the microscale distributions of Mg and Li in Desmophyllum and Balanophyllia using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Both Mg/Ca and Li/Ca ratios increased by more than a factor of two in the center of calcification regions compared to the outer, fibrous regions of the coral skeleton. As a result, replicate approximately 10 mg subsamples of coral show less variability in the Mg/Li ratio than Mg/Ca. Microscale Mg and Li results are consistent with Rayleigh-type incorporation of trace metals with additional processes dominating the composition within centers of calcification. Comparison of Mg/Li to seawater properties near the site of collection shows that the ratio is not controlled by either carbonate ion or salinity. It appears that temperature is the major control on the Mg/Li ratio. For all 34 samples the temperature correlation (R (super 2) =0.62) is significantly better than for Mg/Ca (R (super 2) =0.06). For corals of the family Caryophyllidae the R (super 2) value increases to 0.82 with the exclusion of one sample that was observed to have an altered, chalky texture. Despite this excellent correlation the scatter in the data suggests that the Mg/Li ratio of deep-sea corals cannot be used to reconstruct temperature to better than approximately + or -1.6 degrees C without better temperature control and additional calibration points on modern coral samples. JF - Earth and Planetary Science Letters AU - Case, David H AU - Robinson, Laura F AU - Auro, Maureen E AU - Gagnon, Alexander C Y1 - 2010/12// PY - 2010 DA - December 2010 SP - 215 EP - 225 PB - Elsevier, Amsterdam VL - 300 IS - 3-4 SN - 0012-821X, 0012-821X KW - calcium KW - magnesium KW - isotopes KW - mass spectra KW - deep-sea environment KW - temperature KW - Zoantharia KW - Anthozoa KW - Invertebrata KW - spectra KW - biomineralization KW - alkaline earth metals KW - aragonite KW - Mg/Li KW - lithium KW - alkali metals KW - calcification KW - Li/Ca KW - Mg/Ca KW - Scleractinia KW - ICP mass spectra KW - paleoenvironment KW - metals KW - marine environment KW - trace metals KW - Cnidaria KW - carbonates KW - 07:Oceanography KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861986958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Environmental+and+biological+controls+on+Mg+and+Li+in+deep-sea+scleractinian+corals&rft.au=Case%2C+David+H%3BRobinson%2C+Laura+F%3BAuro%2C+Maureen+E%3BGagnon%2C+Alexander+C&rft.aulast=Case&rft.aufirst=David&rft.date=2010-12-01&rft.volume=300&rft.issue=3-4&rft.spage=215&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2010.09.029 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 56 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; Anthozoa; aragonite; biomineralization; calcification; calcium; carbonates; Cnidaria; deep-sea environment; ICP mass spectra; Invertebrata; isotopes; Li/Ca; lithium; magnesium; marine environment; mass spectra; metals; Mg/Ca; Mg/Li; paleoenvironment; Scleractinia; spectra; temperature; trace metals; Zoantharia DO - http://dx.doi.org/10.1016/j.epsl.2010.09.029 ER - TY - JOUR T1 - Biochemical characterization and crystal structure of endoglucanase Cel5A from the hyperthermophilic Thermotoga maritima AN - 839694110; 13995837 AB - Tm_Cel5A, which belongs to family 5 of the glycoside hydrolases, is an extremely stable enzyme among the endo-acting glycosidases present in the hyperthermophilic organism Thermotoga maritima. Members of GH5 family shows a common (b/a) sub(8) TIM-barrel fold in which the catalytic acid/base and nucleophile are located on strands b-4 and b-7 of the barrel fold. Thermally resistant cellulases are desirable for lignocellulosic biofuels production and the Tm_Cel5A is an excellent candidate for use in the degradation of polysaccharides present on biomass. This paper describes two Tm_Cel5A structures (crystal forms I and II) solved at 2.20 and 1.85 Aa resolution, respectively. Our analyses of the Tm_Cel5A structure and comparison to a mesophilic GH5 provides a basis for the thermostability associated with Tm_Cel5A. Furthermore, both crystal forms of Tm_Cel5A possess a cadmium (Cd super(2+)) ion bound between the two catalytic residues. Activity assays of Tm_Cel5A confirmed a strong inhibition effect in the presence of Cd super(2+) metal ions demonstrating competition with the natural substrate for the active site. Based on the structural information we have obtained for Tm_Cel5A, protein bioengineering can be used to potentially increase the thermostability of mesophilic cellulase enzymes. JF - Journal of Structural biology AU - Pereira, Jose H AU - Chen, Zhiwei AU - McAndrew, Ryan P AU - Sapra, Rajat AU - Chhabra, Swapnil R AU - Sale, Kenneth L AU - Simmons, Blake A AU - Adams, Paul D AD - Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, pdadams@lbl.gov Y1 - 2010/12// PY - 2010 DA - December 2010 SP - 372 EP - 379 PB - Academic Press VL - 172 IS - 3 SN - 1047-8477, 1047-8477 KW - Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources KW - Biofuels KW - Cellulase KW - Enzyme activity KW - Protein structure KW - Hyperthermophilic KW - Endoglucanase KW - Ions KW - Glycosides KW - Metal ions KW - Heavy metals KW - Enzymes KW - Hydrolases KW - Crystals KW - Biomass KW - Polysaccharides KW - Nucleophiles KW - Crystal structure KW - glycoside hydrolase KW - Cadmium KW - Thermal stability KW - Thermotoga maritima KW - Biotechnology KW - Q1 08206:Physiology, biochemistry, biophysics KW - J 02330:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839694110?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Structural+biology&rft.atitle=Biochemical+characterization+and+crystal+structure+of+endoglucanase+Cel5A+from+the+hyperthermophilic+Thermotoga+maritima&rft.au=Pereira%2C+Jose+H%3BChen%2C+Zhiwei%3BMcAndrew%2C+Ryan+P%3BSapra%2C+Rajat%3BChhabra%2C+Swapnil+R%3BSale%2C+Kenneth+L%3BSimmons%2C+Blake+A%3BAdams%2C+Paul+D&rft.aulast=Pereira&rft.aufirst=Jose&rft.date=2010-12-01&rft.volume=172&rft.issue=3&rft.spage=372&rft.isbn=&rft.btitle=&rft.title=Journal+of+Structural+biology&rft.issn=10478477&rft_id=info:doi/10.1016%2Fj.jsb.2010.06.018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Glycosides; Metal ions; Enzymes; Hydrolases; Polysaccharides; Biotechnology; Endoglucanase; Ions; Heavy metals; Crystals; Biomass; Cellulase; Nucleophiles; Crystal structure; glycoside hydrolase; Cadmium; Thermal stability; Biofuels; Thermotoga maritima DO - http://dx.doi.org/10.1016/j.jsb.2010.06.018 ER - TY - JOUR T1 - Surface complexation of Pb(II) by hexagonal birnessite nanoparticles AN - 1777167512; 13933773 AB - Natural hexagonal birnessite is a poorly crystalline layer type Mn(IV) oxide precipitated by bacteria and fungi which has a particularly high adsorption affinity for Pb(II). X-ray spectroscopic studies have shown that Pb(II) forms strong inner-sphere surface complexes mainly at two sites on hexagonal birnessite nanoparticles: triple corner-sharing (TCS) complexes on Mn(IV) vacancies in the interlayers and double edge-sharing (DES) complexes on lateral edge surfaces. Although the TCS surface complex has been well characterized by spectroscopy, some important questions remain about the structure and stability of the complexes occurring on the edge surfaces. First-principles simulation techniques such as density functional theory (DFT) offer a useful way to address these questions by providing complementary information that is difficult to obtain by spectroscopy. Following this computational approach, we used spin-polarized DFT to perform total-energy-minimization geometry optimizations of several possible Pb(II) surface complexes on model birnessite nanoparticles similar to those that have been studied experimentally. We first validated our DFT calculations by geometry optimizations of (1) the Pb-Mn oxyhydroxide mineral, quenselite (PbMnO sub(2)OH), and (2) the TCS surface complex, finding good agreement with experimental structural data while uncovering new information about bonding and stability. Our geometry optimizations of several protonated variants of the DES surface complex led us to conclude that the observed edge-surface species is very likely to be this complex if the singly coordinated terminal O that binds to Pb(II) is protonated. Our geometry optimizations also revealed that an unhydrated double corner-sharing (DCS) species that has been proposed as an alternative to the DES complex is intrinsically unstable on nanoparticle edge surfaces, but could become stabilized if the local coordination environment is well-hydrated. A significant similarity exists in the structural parameters for the TCS complex and those for a DCS edge-surface complex that is protonated in the same manner as the optimal DES complex, which could complicate detecting the DCS complex in X-ray absorption spectra. JF - Geochimica et Cosmochimica Acta AU - Kwon, Kideok D AU - Refson, Keith AU - Sposito, Garrison AD - Geochemistry Department, Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA kkwon@lbl.gov Y1 - 2010/12/01/ PY - 2010 DA - 2010 Dec 01 SP - 6731 EP - 6740 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 74 IS - 23 SN - 0016-7037, 0016-7037 KW - Environmental Engineering Abstracts (EN); Aerospace & High Technology Database (AH) KW - Bacteria KW - X-rays KW - Mathematical models KW - Stability KW - Spectroscopy KW - Nanoparticles KW - Optimization KW - Surface chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777167512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Surface+complexation+of+Pb%28II%29+by+hexagonal+birnessite+nanoparticles&rft.au=Kwon%2C+Kideok+D%3BRefson%2C+Keith%3BSposito%2C+Garrison&rft.aulast=Kwon&rft.aufirst=Kideok&rft.date=2010-12-01&rft.volume=74&rft.issue=23&rft.spage=6731&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2010.09.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.gca.2010.09.002 ER - TY - JOUR T1 - Transport and deposition of functionalized CdTe nanoparticles in saturated porous media AN - 1777117276; 14198482 AB - Comprehensive understanding of the transport and deposition of engineered nanoparticles (NPs) in subsurface is required to assess their potential negative impact on the environment. We studied the deposition behavior of functionalized quantum dot (QD) NPs (CdTe) in different types of sands (Accusand, ultrapure quartz, and iron-coated sand) at various solution ionic strengths (IS). The observed transport behavior in ultrapure quartz and iron-coated sand was consistent with conventional colloid deposition theories. However, our results from the Accusand column showed that deposition was minimal at the lowest IS (1mM) and increased significantly as the IS increased. The effluent breakthrough occurred with a delay, followed by a rapid rise to the maximum normalized concentration of unity. Negligible deposition in the column packed with ultrapure quartz sand (100mM) and Accusand (1mM) rules out the effect of straining and suggests the importance of surface charge heterogeneity in QD deposition in Accusand at higher IS. Data analyses further show that only a small fraction of sand surface area contributed in QD deposition even at the highest IS (100mM) tested. The observed delay in breakthrough curves of QDs was attributed to the fast diffusive mass transfer rate of QDs from bulk solution to the sand surface and QD mass transfer on the solid phase. Scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) analysis were used to examine the morphology and elemental composition of sand grains. It was observed that there were regions on the sand covered with layers of clay particles. EDX spectra collected from these regions revealed that Si and Al were the major elements suggesting that the clay particles were kaolinite. Additional batch experiments using gold NPs and SEM analysis were performed and it was observed that the gold NPs were only deposited on clay particles originally on the Accusand surface. After removing the clays from the sand surface, we observed negligible QD deposition even at 100mM IS. We proposed that nanoscale charge heterogeneities on clay particles on Accusand surface played a key role in QD deposition. It was shown that the value of solution IS determined the extent to which the local heterogeneities participated in particle deposition. JF - Journal of Contaminant Hydrology AU - Torkzaban, Saeed AU - Kim, Yongman AU - Mulvihill, Martin AU - Wan, Jiamin AU - Tokunaga, Tetsu K AD - Earth Sciences Division, Lawrence, Berkeley National Laboratory, Berkeley, CA, United States saeed.torkzaban@gmail.com Y1 - 2010/11/25/ PY - 2010 DA - 2010 Nov 25 SP - 208 EP - 217 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 118 IS - 3-4 SN - 0169-7722, 0169-7722 KW - Ceramic Abstracts/World Ceramics Abstracts (WC); Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Nanoparticles KW - Transport KW - Deposition KW - Ionic strengths KW - Scanning electron microscopy KW - Quartz KW - Sands KW - Heterogeneity KW - Nanostructure KW - Clay (material) KW - Cadmium tellurides UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777117276?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Transport+and+deposition+of+functionalized+CdTe+nanoparticles+in+saturated+porous+media&rft.au=Torkzaban%2C+Saeed%3BKim%2C+Yongman%3BMulvihill%2C+Martin%3BWan%2C+Jiamin%3BTokunaga%2C+Tetsu+K&rft.aulast=Torkzaban&rft.aufirst=Saeed&rft.date=2010-11-25&rft.volume=118&rft.issue=3-4&rft.spage=208&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2010.10.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jconhyd.2010.10.002 ER - TY - JOUR T1 - Genome Sequence of the Dioxin-Mineralizing Bacterium Sphingomonas wittichii RW1 AN - 864952732; 13917846 AB - Pollutants such as polychlorinated biphenyls and dioxins pose a serious threat to human and environmental health. Natural attenuation of these compounds by microorganisms provides one promising avenue for their removal from contaminated areas. Over the past 2 decades, studies of the bacterium Sphingomonas wittichii RW1 have provided a wealth of knowledge about how bacteria metabolize chlorinated aromatic hydrocarbons. Here we describe the finished genome sequence of S. wittichii RW1 and major findings from its annotation. JF - Journal of Bacteriology AU - Miller, Todd R AU - Delcher, Arthur L AU - Salzberg, Steven L AU - Saunders, Elizabeth AU - Detter, John C AU - Halden, Rolf U AD - Department of Bacteriology, University of Wisconsin, Madison, Wisconsin 53706. Center for Bioinformatics and Computational Biology, University of Maryland, College Park, Maryland 20742. U.S. DOE Joint Genome Institute, Walnut Creek, California 94598. the Biodesign Institute at Arizona State University, Tempe, Arizona 85287 Y1 - 2010/11/15/ PY - 2010 DA - 2010 Nov 15 SP - 6101 EP - 6102 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 192 IS - 22 SN - 0021-9193, 0021-9193 KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts B: Bacteriology KW - Genomes KW - Bacteria KW - polychlorinated biphenyls KW - Pollutants KW - Nucleotide sequence KW - Microorganisms KW - Aromatic hydrocarbons KW - Sphingomonas wittichii KW - PCB KW - Dioxin KW - J 02310:Genetics & Taxonomy KW - N 14845:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864952732?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Bacteriology&rft.atitle=Genome+Sequence+of+the+Dioxin-Mineralizing+Bacterium+Sphingomonas+wittichii+RW1&rft.au=Miller%2C+Todd+R%3BDelcher%2C+Arthur+L%3BSalzberg%2C+Steven+L%3BSaunders%2C+Elizabeth%3BDetter%2C+John+C%3BHalden%2C+Rolf+U&rft.aulast=Miller&rft.aufirst=Todd&rft.date=2010-11-15&rft.volume=192&rft.issue=22&rft.spage=6101&rft.isbn=&rft.btitle=&rft.title=Journal+of+Bacteriology&rft.issn=00219193&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2013-07-15 N1 - SubjectsTermNotLitGenreText - Genomes; polychlorinated biphenyls; Pollutants; Nucleotide sequence; Microorganisms; Aromatic hydrocarbons; Dioxin; PCB; Bacteria; Sphingomonas wittichii ER - TY - JOUR T1 - Depth profile analysis of a cycled lithium ion manganese oxide battery electrode via the valence state of manganese, with soft X-ray emission spectroscopy AN - 1777113208; 13402394 AB - A 50-km thick lithium manganese oxide (parent material LiMn sub(2)O sub(4)) battery electrode (positive electrode; cathode) was charged, slightly discharged and then sliced with a scotch tape test-type method. A selected number of slices was then subject to synchrotron soft X-ray emission spectroscopy near the Mn L sub(a,b) emission lines in order to determine changes in the oxidation state of the manganese as a function of sampling depth. The emission spectra showed a minute yet noticeable and systematic chemical shift of up to 0.25 eV between the layer near the current collector and the layer near the electrolyte separator. The average manganese oxidation state near the separator was smaller than the average oxidation state in the interior of the electrode, or near the current collector. Since the data provide an oxidation state depth profile of the cathode, a Li super(+) depth profile can be inferred. This method provides information on the spatial chemical inhomogeneity of electrodes prior to and after electrochemical cycling, and thus can aid in degradation studies. JF - Journal of Power Sources AU - Braun, Artur AU - Wang, Hongxin AU - Funk, Tobias AU - Seifert, Soenke AU - Cairns, Elton J AD - Environmental Energy Technologies Division, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States artur.braun@alumni.ethz.ch Y1 - 2010/11/15/ PY - 2010 DA - 2010 Nov 15 SP - 7644 EP - 7648 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 22 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE) KW - Lithium battery KW - X-ray spectroscopy KW - Depth profile KW - Manganese oxide KW - Valence state KW - Cathodes KW - Accumulators KW - Emission spectroscopy KW - Electrodes KW - Battery KW - Valence KW - Collectors KW - Manganese UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777113208?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Depth+profile+analysis+of+a+cycled+lithium+ion+manganese+oxide+battery+electrode+via+the+valence+state+of+manganese%2C+with+soft+X-ray+emission+spectroscopy&rft.au=Braun%2C+Artur%3BWang%2C+Hongxin%3BFunk%2C+Tobias%3BSeifert%2C+Soenke%3BCairns%2C+Elton+J&rft.aulast=Braun&rft.aufirst=Artur&rft.date=2010-11-15&rft.volume=195&rft.issue=22&rft.spage=7644&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2010.05.053 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-01-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jpowsour.2010.05.053 ER - TY - JOUR T1 - Chromium transport by solid state diffusion on solid oxide fuel cell cathode AN - 1777099541; 13402380 AB - Iron-chromium ferritic stainless steel is widely used in solid oxide fuel cell (SOFC) components. At 650-800 C, stainless steels form a protective chromia oxide scale. This low conductivity catalytic compound can degrade SOFC cathode performance. The migration of Cr species onto the cathode occurs through vapor transport and/or solid state diffusion, and electrochemical reactions may affect the migration. It is important to understand the relative Cr transport and reaction rates to evaluate the most viable commercially available cathode material. This study characterizes the migration of Cr species through solid state diffusion and vapor deposition. Chromia blocks and chromia-forming stainless steel interconnects were held in contact with LSM (Lanthanum Strontium Manganese Oxide), LSCF (Lanthanum Strontium Cobalt Ferrite) and LNF (Lanthanum Nickel Ferrite) perovskite pellets in Cr-saturated air at 700 C for 300 h. XRD (X-ray Diffraction), SEM (Scanning Electron Microscope), EDS (Energy Dispersive X-ray Spectroscopy) and Ion Milling by FIB (Focused Ion Beam) were used to detect Cr on and within the perovskite pellets. Cr transport and reaction on LSCF is the most severe, followed by LSM. Cr transport is observed on LNF, but without noticeable reaction. JF - Journal of Power Sources AU - Lau, Grace Y AU - Tucker, Michael C AU - Jacobson, Craig P AU - Visco, Steven J AU - Gleixner, Stacy H AU - DeJonghe, Lutgard C AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., MS 62-203, Berkeley, CA 94720, USA gylau@lbl.gov Y1 - 2010/11/15/ PY - 2010 DA - 2010 Nov 15 SP - 7540 EP - 7547 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 22 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); Aerospace & High Technology Database (AH) KW - Solid oxide fuel cell KW - Stainless steel KW - Chromium KW - LSM KW - LSCF KW - LNF KW - Cathodes KW - Scanning electron microscopy KW - Transport KW - Solid state KW - Solid oxide fuel cells KW - Diffusion KW - Lanthanum UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777099541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Chromium+transport+by+solid+state+diffusion+on+solid+oxide+fuel+cell+cathode&rft.au=Lau%2C+Grace+Y%3BTucker%2C+Michael+C%3BJacobson%2C+Craig+P%3BVisco%2C+Steven+J%3BGleixner%2C+Stacy+H%3BDeJonghe%2C+Lutgard+C&rft.aulast=Lau&rft.aufirst=Grace&rft.date=2010-11-15&rft.volume=195&rft.issue=22&rft.spage=7540&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2010.06.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-01-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jpowsour.2010.06.017 ER - TY - JOUR T1 - Association of residential dampness and mold with respiratory tract infections and bronchitis: a meta-analysis AN - 1022560664; 14160323 AB - Dampness and mold have been shown in qualitative reviews to be associated with a variety of adverse respiratory health effects, including respiratory tract infections. Several published meta-analyses have provided quantitative summaries for some of these associations, but not for respiratory infections. Demonstrating a causal relationship between dampness-related agents, which are preventable exposures, and respiratory tract infections would suggest important new public health strategies. We report the results of quantitative meta-analyses of published studies that examined the association of dampness or mold in homes with respiratory infections and bronchitis. For primary studies meeting eligibility criteria, we transformed reported odds ratios (ORs) and confidence intervals (CIs) to the log scale. Both fixed and random effects models were applied to the log ORs and their variances. Most studies contained multiple estimated ORs. Models accounted for the correlation between multiple results within the studies analyzed. One set of analyses was performed with all eligible studies, and another set restricted to studies that controlled for age, gender, smoking, and socioeconomic status. Subgroups of studies were assessed to explore heterogeneity. Funnel plots were used to assess publication bias. The resulting summary estimates of ORs from random effects models based on all studies ranged from 1.38 to 1.50, with 95% CIs excluding the null in all cases. Use of different analysis models and restricting analyses based on control of multiple confounding variables changed findings only slightly. ORs (95% CIs) from random effects models using studies adjusting for major confounding variables were, for bronchitis, 1.45 (1.32-1.59); for respiratory infections, 1.44 (1.31-1.59); for respiratory infections excluding nonspecific upper respiratory infections, 1.50 (1.32-1.70), and for respiratory infections in children or infants, 1.48 (1.33-1.65). Little effect of publication bias was evident. Estimated attributable risk proportions ranged from 8% to 20%. Residential dampness and mold are associated with substantial and statistically significant increases in both respiratory infections and bronchitis. If these associations were confirmed as causal, effective control of dampness and mold in buildings would prevent a substantial proportion of respiratory infections. JF - Environmental Health AU - Fisk, William J AU - Eliseeva, Ekaterina A AU - Mendell, Mark J AD - Indoor Environment Department, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road 90R3058, Berkeley, CA, USA Y1 - 2010/11/15/ PY - 2010 DA - 2010 Nov 15 SP - 72 PB - BioMed Central Ltd., Middlesex House London W1T 4LB UK VL - 9 KW - Health & Safety Science Abstracts KW - Buildings KW - Children KW - Gender KW - Infants KW - Infection KW - Public health KW - Respiratory tract KW - Reviews KW - Socioeconomics KW - infection KW - H 1000:Occupational Safety and Health UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1022560664?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ahealthsafetyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Health&rft.atitle=Association+of+residential+dampness+and+mold+with+respiratory+tract+infections+and+bronchitis%3A+a+meta-analysis&rft.au=Fisk%2C+William+J%3BEliseeva%2C+Ekaterina+A%3BMendell%2C+Mark+J&rft.aulast=Fisk&rft.aufirst=William&rft.date=2010-11-15&rft.volume=9&rft.issue=&rft.spage=72&rft.isbn=&rft.btitle=&rft.title=Environmental+Health&rft.issn=1476-069X&rft_id=info:doi/10.1186%2F1476-069X-9-72 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-06-01 N1 - Last updated - 2012-06-29 N1 - SubjectsTermNotLitGenreText - Reviews; Gender; infection; Socioeconomics; Infection; Children; Buildings; Infants; Public health; Respiratory tract DO - http://dx.doi.org/10.1186/1476-069X-9-72 ER - TY - JOUR T1 - Ultrathin compound semiconductor on insulator layers for high-performance nanoscale transistors AN - 855716318; 14164901 AB - Over the past several years, the inherent scaling limitations of silicon (Si) electron devices have fuelled the exploration of alternative semiconductors, with high carrier mobility, to further enhance device performance. In particular, compound semiconductors heterogeneously integrated on Si substrates have been actively studied: such devices combine the high mobility of III-V semiconductors and the well established, low-cost processing of Si technology. This integration, however, presents significant challenges. Conventionally, heteroepitaxial growth of complex multilayers on Si has been explored--but besides complexity, high defect densities and junction leakage currents present limitations in this approach. Motivated by this challenge, here we use an epitaxial transfer method for the integration of ultrathin layers of single-crystal InAs on Si/SiO sub(2) substrates. As a parallel with silicon-on-insulator (SOI) technology, we use 'XOI' to represent our compound semiconductor-on-insulator platform. Through experiments and simulation, the electrical properties of InAs XOI transistors are explored, elucidating the critical role of quantum confinement in the transport properties of ultrathin XOI layers. Importantly, a high-quality InAs/dielectric interface is obtained by the use of a novel thermally grown interfacial InAsO sub(x) layer (~1nm thick). The fabricated field-effect transistors exhibit a peak transconductance of ~1.6mS mu m super(-1) at a drain-source voltage of 0.5V, with an on/off current ratio of greater than 10,000. JF - Nature AU - Ko, Hyunhyub AU - Takei, Kuniharu AU - Kapadia, Rehan AU - Chuang, Steven AU - Fang, Hui AU - Leu, Paul W AU - Ganapathi, Kartik AU - Plis, Elena AU - Kim, Ha Sul AU - Chen, Szu-Ying AU - Madsen, Morten AU - Ford, Alexandra C AU - Chueh, Yu-Lun AU - Krishna, Sanjay AU - Salahuddin, Sayeef AU - Javey, Ali AD - [1] Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, USA [2] Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA [3] Berkeley Sensor and Actuator Center, University of California, Berkeley, California 94720, USA Y1 - 2010/11/11/ PY - 2010 DA - 2010 Nov 11 SP - 286 EP - 289 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 468 IS - 7321 SN - 0028-0836, 0028-0836 KW - Solid State and Superconductivity Abstracts (SO); Mechanical & Transportation Engineering Abstracts (MT); METADEX (MD); Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Electronics and Communications Abstracts (EA); Computer and Information Systems Abstracts (CI); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855716318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Ultrathin+compound+semiconductor+on+insulator+layers+for+high-performance+nanoscale+transistors&rft.au=Ko%2C+Hyunhyub%3BTakei%2C+Kuniharu%3BKapadia%2C+Rehan%3BChuang%2C+Steven%3BFang%2C+Hui%3BLeu%2C+Paul+W%3BGanapathi%2C+Kartik%3BPlis%2C+Elena%3BKim%2C+Ha+Sul%3BChen%2C+Szu-Ying%3BMadsen%2C+Morten%3BFord%2C+Alexandra+C%3BChueh%2C+Yu-Lun%3BKrishna%2C+Sanjay%3BSalahuddin%2C+Sayeef%3BJavey%2C+Ali&rft.aulast=Ko&rft.aufirst=Hyunhyub&rft.date=2010-11-11&rft.volume=468&rft.issue=7321&rft.spage=286&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature09541 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2011-11-11 DO - http://dx.doi.org/10.1038/nature09541 ER - TY - JOUR T1 - Insight into U transport and immobilization; 238U/235U measurements of an anomalous U concentration peak at the Rifle Integrated Field Research Challenge Site AN - 902068560; 2011-090843 AB - The Rifle Integrated Field Research Challenge Site at Rifle, CO is located in an area of residual uranium groundwater contamination from a uranium mill tailings pile. Several stimulated uranium bioremediation experiments have been successfully conducted at the site, characteristically decreasing dissolved uranium concentrations only days after acetate injection. Previous work using high precision MCICPMS methods has shown that as U is reduced in these groundwaters, the 238U/235U (delta 238U) of the remaining U(VI) in solution increases (Bopp et al., EST, 2010). Here we present delta 238U results for a set of groundwater samples taken from the "Big Rusty" experiment in 2008 in which concentrations of U(VI)(aq) dropped after initial acetate injection then rebounded sharply after a 7 day interruption in acetate amendment and remained elevated for over a month. Was this anomalous increase due to reoxidation, mixing in of upgradient groundwater, or desorption? Results show that delta 238U increases from -0.75 to 0 in concert with U(VI)(aq) concentration but there is a lag time between the decrease of U(VI)(aq) and the onset of lower delta 238U. Upgradient control wells during this time period show no change in U(VI)(aq) or delta 238U. Using an isotopic calibration of U reduction at the Rifle site based on Bopp et al. (2010) and recent results for isotopic fractionation with sorption (Wasylenki et al., 2010), we evaluate the three possible explanations. Based on other conservative tracers, mixing cannot explain the anomalous peak. The delta 238U results appear inconsistent with sorption effects but are in line with expectations of reoxidation. Specifically, the "stair-step" shape of the delta 238U profile may be characteristic of a reoxidation process; however more work is needed to constrain the effects of adsorption/desorption and reoxidation on 238U/235U to verify this interpretation. Note that this reoxidation occurs under anaerobic conditions; this may reflect reoxidation by reactive and thermodynamically favorable ferric phases (Ginder-Vogel, 2006; 2010). With further work, the 238U/235U method may provide a reliable tracer of short-term uranium remobilization due to oxidation. JF - Abstracts with Programs - Geological Society of America AU - Bopp, Charles John, IV AU - Lundstrom, Craig C AU - Johnson, Thomas M AU - Williams, Kenneth H AU - Long, Philip AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 387 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - Rifle Integrated Field Research Challenge Site KW - Garfield County Colorado KW - isotopes KW - pollutants KW - isotope ratios KW - pollution KW - ground water KW - radioactive isotopes KW - sampling KW - metals KW - uranium KW - U-238/U-235 KW - Colorado KW - water pollution KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902068560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Insight+into+U+transport+and+immobilization%3B+238U%2F235U+measurements+of+an+anomalous+U+concentration+peak+at+the+Rifle+Integrated+Field+Research+Challenge+Site&rft.au=Bopp%2C+Charles+John%2C+IV%3BLundstrom%2C+Craig+C%3BJohnson%2C+Thomas+M%3BWilliams%2C+Kenneth+H%3BLong%2C+Philip%3BAnonymous&rft.aulast=Bopp&rft.aufirst=Charles&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; Colorado; Garfield County Colorado; ground water; isotope ratios; isotopes; metals; pollutants; pollution; radioactive isotopes; Rifle Integrated Field Research Challenge Site; sampling; U-238/U-235; United States; uranium; water pollution ER - TY - JOUR T1 - MSA award lecture; Addressing the nanoparticle challenge to mineralogy and geochemistry AN - 902068210; 2011-093535 AB - The discovery that nanoscale minerals are participants in many geochemical and biogeochemical processes was an important advance in geochemistry. However, this discovery has brought additional complexity to our conceptual models of the natural world, and numerous challenges to the experimental and computational tools used to test them. In this talk I will summarize the challenges to mineralogy, primarily structure determination, and to geochemistry, particularly in understanding kinetic controls on effective reactivity. Determining accurate models of nanoparticle structure is a pressing task, because knowledge of mineral structure is a prerequisite for understanding stability and intrinsic reactivity. For most nanoparticles formed at low temperature, the crystal unit cell is an incomplete description of structure, and there is a need for better ways to identify defects, disorder and strain. Moreover, nanoparticle surfaces remain uncharted territory, limiting our understanding of interfacial processes including ion adsorption, as well as the surface hydration and protonation reactions that greatly affect nanoparticle structure and stability. Addressing these challenges is feasible, however, because we are far from exhausting the structural information that experimental scattering and imaging approaches provide. It is very difficult to predict how nanomaterials react under changing environmental redox conditions. Insight into structure--at both the molecular and aggregate scales--is crucial for understanding the kinetic factors that can constrain the ways in which reactions proceed. In addition, recently developed time-resolved methods can probe nanoparticle transformations and surface reactions at the relevant timescales, from picoseconds to microseconds. The observation of reactions as they occur will be a powerful approach for understanding the mechanisms controlling nanoparticle reactivity. JF - Abstracts with Programs - Geological Society of America AU - Gilbert, Benjamin AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 480 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - biochemistry KW - microstructure KW - unit cell KW - crystal structure KW - mineralogy KW - defects KW - order-disorder KW - reactivity KW - theoretical models KW - transformations KW - crystal chemistry KW - nanoparticles KW - geochemistry KW - Eh KW - 01A:General mineralogy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902068210?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=MSA+award+lecture%3B+Addressing+the+nanoparticle+challenge+to+mineralogy+and+geochemistry&rft.au=Gilbert%2C+Benjamin%3BAnonymous&rft.aulast=Gilbert&rft.aufirst=Benjamin&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=480&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2014-03-14 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biochemistry; crystal chemistry; crystal structure; defects; Eh; geochemistry; microstructure; mineralogy; nanoparticles; order-disorder; reactivity; theoretical models; transformations; unit cell ER - TY - JOUR T1 - Birdsall-Dreiss distinguished lecture; Toward X-ray vision; geophysical signatures of complex subsurface processes AN - 902068165; 2011-093533 AB - Developing a predictive understanding of water and contaminant fate and transport is complicated by natural heterogeneity, as well as by the disparity of scales across which hydrological, geochemical, and microbiological processes dominate. Because some geophysical attributes are sensitive to hydrological and biogeochemical properties that govern flow and transport, geophysical methods hold potential for minimally invasive characterization and monitoring of complex subsurface processes. This 2010 GSA Birdsall-Dreiss Distinguished lecture will describe the relatively new fields of hydrogeophysics and biogeophysics, which strive to use geophysical datasets to characterize subsurface hydrogeological and biogeochemical processes, respectively. Several key components are required for such quantitative characterization, including: high quality geophysical datasets, petrophysical models, frameworks to integrate disparate datasets, and attention to scale issues. This presentation will review these key components and present several examples that illustrate how hydrogeophysical and biogeophysical methods can be used to gain significant insights about complex subsurface system processes, such as subsurface bacterial transport and feedbacks between biogeochemical transformations and flow characteristics. A particular emphasis will be placed on processes relevant to environmental remediation, where in-situ treatments (such as bioremediation) significantly disrupt geochemical equilibrium and where developing a predictive understanding of remediation-induced transformations is difficult to develop using wellbore data alone. JF - Abstracts with Programs - Geological Society of America AU - Hubbard, Susan AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 479 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - processes KW - physical properties KW - monitoring KW - transport KW - biochemistry KW - geophysical methods KW - characterization KW - hydrogeology KW - bioremediation KW - remediation KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/902068165?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Birdsall-Dreiss+distinguished+lecture%3B+Toward+X-ray+vision%3B+geophysical+signatures+of+complex+subsurface+processes&rft.au=Hubbard%2C+Susan%3BAnonymous&rft.aulast=Hubbard&rft.aufirst=Susan&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=479&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - biochemistry; bioremediation; characterization; geophysical methods; hydrogeology; monitoring; physical properties; processes; remediation; transport ER - TY - JOUR T1 - Molecular modeling of carbon dioxide-water mixtures under geologic sequestration conditions AN - 898205614; 2011-089264 AB - The success of geologic carbon sequestration depends largely on the ability of the caprock to prevent the escape of CO (sub 2) . Capillary breakthrough overpressure--the pressure above which CO (sub 2) may leak through the caprock--in turn depends upon the interfacial tension (IFT) between supercritical CO (sub 2) and brine. Molecular dynamics (MD) simulations are widely used to probe the interactions that lead to fluid-fluid properties such as IFT. Among the leading models of CO (sub 2) -water interactions, three-site parametric approaches are favored for their accuracy and ease of implementation. We used MD simulations to compare three of these models [EPM2 (Harris and Yung, 1995), PPL (Panhuis et al., 1998), and DZ (Duan and Zhang, 2005, 2006)] for their ability to reproduce IFT and solubility data in CO (sub 2) -SPC/E H (sub 2) O mixtures over the range of P and T relevant to geologic sequestration. Long-range interactions in the models are characterized by Coulomb potentials between partial charges localized on three sites in CO (sub 2) and H (sub 2) O, while short-range interactions are characterized by Lennard-Jones (LJ) potentials with two parameters, potential well depth (epsilon ) and hard-sphere radius (sigma ). Each model differs significantly in one or more of these parameters as applied to the CO (sub 2) -H (sub 2) O interaction, enabling us to examine the effects of varying epsilon , sigma , or q on IFT and solubility. None of these models perfectly reproduces experimental IFT or solubility data. For example, the PPL model under-predicts IFT and over-predicts CO (sub 2) solubility as functions of P, while the DZ and EPM2 models track IFT reasonably well but under-predict CO (sub 2) solubility. The best agreement overall was obtained with the EPM2 model, which may be improved to reproduce solubility more accurately by increasing its CO (sub 2) epsilon -parameter. JF - Abstracts with Programs - Geological Society of America AU - Nielsen, Laura C AU - Bourg, Ian C AU - Sposito, Garrison AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 346 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - water KW - models KW - carbon sequestration KW - mixing KW - cap rocks KW - solubility KW - simulation KW - geochemistry KW - rock mechanics KW - P-T conditions KW - carbon dioxide KW - 30:Engineering geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898205614?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Molecular+modeling+of+carbon+dioxide-water+mixtures+under+geologic+sequestration+conditions&rft.au=Nielsen%2C+Laura+C%3BBourg%2C+Ian+C%3BSposito%2C+Garrison%3BAnonymous&rft.aulast=Nielsen&rft.aufirst=Laura&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=346&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - cap rocks; carbon dioxide; carbon sequestration; geochemistry; mixing; models; P-T conditions; rock mechanics; simulation; solubility; water ER - TY - JOUR T1 - Nanoscale control of geologic CO (sub 2) ; a DOE energy frontier research center AN - 898205609; 2011-089263 AB - The objective of the Center is to use new investigative tools, combined with experiments and computational methods, to build a next-generation understanding of molecular-to-pore-scale processes in fluid-rock systems, and to demonstrate the ability to control critical aspects of flow and transport in porous rock media, in particular as applied to geologic sequestration of CO (sub 2) . The objectives address fundamental science challenges related to far-from equilibrium systems, nanoscale processes at interfaces, and emergent phenomena. The specific overarching goals are to (1) establish, within 10 years, novel molecular, nanoscale, and pore-network scale approaches for controlling flow, dissolution, and precipitation in deep subsurface rock formations to achieve the efficient filling of pore space with injected supercritical CO (sub 2) , with maximum solubility and mineral trapping and near-zero leakage, and (2) develop a predictive capability for reactive transport of CO (sub 2) -rich fluid that is applicable for 100-1000 years into the future. The major technological gaps to controlling and ultimately sequestering subsurface CO (sub 2) can be traced to far-from-equilibrium processes that originate at the molecular and nanoscale, but are expressed as complex emergent behavior at larger scales. Essential knowledge gaps involve the effects of nanoscale confinement on material properties, flow and chemical reactions, the effects of nanoparticles, mineral surface dynamics, and microbiota on mineral dissolution/precipitation and fluid flow, and the dynamics of fluid-fluid and fluid-mineral interfaces. The construction of quantitative macroscale process models based on nanoscale process descriptions is a critical additional fundamental knowledge gap. A combination of carefully integrated experiments and modeling approaches are used to evaluate essential molecular and nanoscale processes, and to treat the transition from the nanoscale to pore scale, and the effects that arise at that scale. Multiscale computational models and lab-scale experiments are used to understand the emergence of macroscale properties and processes. This presentation will highlight key results from three thrust efforts: mineral nucleation, fluids in nanopores and pore-scale fluid-solid interactions. JF - Abstracts with Programs - Geological Society of America AU - Cole, David R AU - DePaolo, Donald J AU - DeYoreo, James J AU - Sposito, Garrison AU - Steefel, Carl AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 345 EP - 346 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - controls KW - U. S. Department of Energy KW - carbon sequestration KW - water-rock interaction KW - government agencies KW - research KW - geochemistry KW - rock mechanics KW - carbon dioxide KW - 30:Engineering geology KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898205609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Nanoscale+control+of+geologic+CO+%28sub+2%29+%3B+a+DOE+energy+frontier+research+center&rft.au=Cole%2C+David+R%3BDePaolo%2C+Donald+J%3BDeYoreo%2C+James+J%3BSposito%2C+Garrison%3BSteefel%2C+Carl%3BAnonymous&rft.aulast=Cole&rft.aufirst=David&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=345&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; controls; geochemistry; government agencies; research; rock mechanics; U. S. Department of Energy; water-rock interaction ER - TY - JOUR T1 - Exploring hydrologic processes and the weathering front under a steep, rapidly eroding hillslope; results of drilling and geophysical investigations AN - 898161175; 2011-087053 AB - Observations from roadcuts and a small number of field studies suggest that near-surface bedrock underlying hillslopes is commonly highly fractured, with fracture openings and density greatest near the surface. The development of this weathered front into the underlying fresh bedrock creates subsurface flow paths and a seasonal water storage zone that may strongly influence runoff generation, slope stability, and water availability to plants. At an intensively monitored hillslope in the Angelo Coast Range Reserve along the Eel River in Northern California we are exploring the use of geophysical tools to reveal how this subsurface domain is structured, evolves and influences hydrologic and geomorphic processes. The 4000 m (super 2) catchment has a mean slope of 30 degrees and is underlain by nearly vertically bedded Franciscan Coastal Belt argillite. A thin colluvial soil mantles the weathered bedrock. Average rainfall is about 2 m with nearly all of it occurring between November and April. Elder Creek, into which the hillslope drains, is eroding at about 0.2 mm/year which is comparable to the estimated uplift. In 2007, 7 deep wells up to 30 m deep were drilled across the hillslope and water levels have been continuously monitored since then. Hundreds of devices for monitoring soil moisture, sap flow, and climate attributes have been installed throughout the catchment. Drilling using standard blow count testing revealed an abrupt transition to very resistant, unoxidized fresh bedrock at depth. This front varied systematically from 4 m beneath the surface at the toe to 16 m depth 100 m upslope near the divide. All rain that is not returned to the atmosphere through evaporation or transpiration passes through the soil into the underlying fractured bedrock and then travels laterally to the bedrock floored Elder Creek at the hillslope base. The water table varies significantly both seasonally and in response to individual storms. We have conducted 5 time-lapse electrical resistivity tomography surveys along two 100 m long profiles along and across the hillslope. In addition, we have monitored moisture content dynamics in the 7 wells using a neutron probe. Taken together, these data reveal a heterogeneous but spatially structured pattern of moisture dynamics that we propose reflects the underlying pattern of bedrock fracturing. JF - Abstracts with Programs - Geological Society of America AU - Rempe, Daniella M AU - Salve, Rohit AU - Gasperikova, Erika AU - Oshun, Jasper AU - Dietrich, William E AU - Fung, Inez AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 314 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - fractured materials KW - geophysical surveys KW - erosion KW - slopes KW - moisture KW - ground water KW - California KW - sedimentary rocks KW - weathered materials KW - sediments KW - drainage basins KW - drilling KW - Northern California KW - Franciscan Complex KW - hydrology KW - bedrock KW - argillite KW - colluvium KW - clastic sediments KW - rainfall KW - Angelo Coast Range Reserve KW - geophysical methods KW - electrical methods KW - Eel River KW - resistivity KW - weathering KW - Mesozoic KW - water table KW - neutron probe KW - runoff KW - surveys KW - geomorphology KW - slope stability KW - clastic rocks KW - 23:Geomorphology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/898161175?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Exploring+hydrologic+processes+and+the+weathering+front+under+a+steep%2C+rapidly+eroding+hillslope%3B+results+of+drilling+and+geophysical+investigations&rft.au=Rempe%2C+Daniella+M%3BSalve%2C+Rohit%3BGasperikova%2C+Erika%3BOshun%2C+Jasper%3BDietrich%2C+William+E%3BFung%2C+Inez%3BAnonymous&rft.aulast=Rempe&rft.aufirst=Daniella&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=314&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - Angelo Coast Range Reserve; argillite; bedrock; California; clastic rocks; clastic sediments; colluvium; drainage basins; drilling; Eel River; electrical methods; erosion; fractured materials; Franciscan Complex; geomorphology; geophysical methods; geophysical surveys; ground water; hydrology; Mesozoic; moisture; neutron probe; Northern California; rainfall; resistivity; runoff; sedimentary rocks; sediments; slope stability; slopes; surveys; United States; water table; weathered materials; weathering ER - TY - JOUR T1 - Evaluating the effects of CO (sub 2 intrusion ontrace metal mobility in freshwater aquifers AN - 885341147; 588896-24 AB - The risk of CO<2) leakage from properly characterized and permitted storage sites is expected to be very low. CO<2) leakage, however, could potentially decrease the pH of potable groundwater, causing trace metals to be mobilized through several pathways that include ion exchange, desorption from surface sites, and mineral dissolution. This study uses a combination of lab experiments, synchrotron analyses and reactive transport modeling to determine the dominant geochemical processes that could occur in shallow aquifers when dissolved CO<2) is introduced at formation pressures. Preliminary geochemical characterization was done on sediments collected from three different depths of a coastal plain aquifer in Mississippi. Sediment pH buffering capacity was estimated using titrations conducted with 0.01N hydrochloric acid. The observed pH buffering behavior could be fully accounted for by surface protonation; mineral dissolution was ignored since no carbonates were identified in the sediments. Total and inorganic carbon was measured using an NDIR-based TOC analyzer. A significant amount of organic carbon (2.4%) was found in one layer, while no detectable carbon was present at the other two depths. An acid digestion analysis showed that the organic layer also contained elevated metal concentrations compared to the other sediments. The aquifer material and the organic layer were analyzed using micro X-ray fluorescence spectroscopy. Preliminary analysis showed that the aquifer material contained large quartz grains coated with iron-bearing clays or oxides. In contrast, the organic layer contained large amounts of amorphous material consisting of organic thiol groups associated with alkaline earth elements such as calcium and strontium. Arsenic and lead were found to be associated with discrete pyrite grains in both sediments, though the aquifer material had much smaller amounts of pyrite than the organic layer. This is consistent with observations from SEM images and optical microscopy indicating the presence of pyrite in the organic layer. Based on these results, the amorphous organic material and the pyrite grains could be important sources for CO<2) -driven release of metals. This will be tested in sediment leaching experiments using groundwater saturated with CO<2) at aquifer pressures. JF - Abstracts with Programs - Geological Society of America AU - Varadharajan, Charuleka AU - Nico, Peter S AU - Pugh, John D AU - Zheng, Liange AU - Spycher, Nicolas AU - Birkholzer, Jens T AU - Trautz, Robert C AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 115 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - characterization KW - lead KW - fresh water KW - gas storage KW - solution KW - seepage KW - ground water KW - evaluation KW - carbon dioxide KW - total organic carbon KW - ion exchange KW - water pollution KW - pH KW - North America KW - titration KW - Mississippi KW - arsenic KW - pollution KW - effects KW - Gulf Coastal Plain KW - aquifers KW - organic compounds KW - dissolved materials KW - metals KW - pyrite KW - sulfides KW - SEM data KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885341147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Evaluating+the+effects+of+CO+%28sub+2+intrusion+ontrace+metal+mobility+in+freshwater+aquifers&rft.au=Varadharajan%2C+Charuleka%3BNico%2C+Peter+S%3BPugh%2C+John+D%3BZheng%2C+Liange%3BSpycher%2C+Nicolas%3BBirkholzer%2C+Jens+T%3BTrautz%2C+Robert+C%3BAnonymous&rft.aulast=Varadharajan&rft.aufirst=Charuleka&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=115&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - PubXState - CO N1 - Last updated - 2012-07-20 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; arsenic; carbon dioxide; characterization; dissolved materials; effects; evaluation; fresh water; gas storage; ground water; Gulf Coastal Plain; ion exchange; lead; metals; Mississippi; North America; organic compounds; pH; pollution; pyrite; seepage; SEM data; solution; sulfides; titration; total organic carbon; United States; water pollution ER - TY - JOUR T1 - Secondary organic aerosol formation from ozone-initiated reactions with nicotine and secondhand tobacco smoke AN - 877590697; 13681190 AB - We used controlled laboratory experiments to evaluate the aerosol-forming potential of ozone reactions with nicotine and secondhand smoke. Special attention was devoted to real-time monitoring of the particle size distribution and chemical composition of SOA as they are believed to be key factors determining the toxicity of SOA. The experimental approach was based on using a vacuum ultraviolet photon ionization time-of-flight aerosol mass spectrometer (VUV-AMS), a scanning mobility particle sizer (SMPS) and off-line thermal desorption coupled to mass spectrometry (TD-GC-MS) for gas-phase byproducts analysis. Results showed that exposure of SHS to ozone induced the formation of ultrafine particles (<100aanm) that contained high molecular weight nitrogenated species (m/z 400-500), which can be due to accretion/acid-base reactions and formation of oligomers. In addition, nicotine was found to contribute significantly (with yields 4-9%) to the formation of secondary organic aerosol through reaction with ozone. The main constituents of the resulting SOA were tentatively identified and a reaction mechanism was proposed to elucidate their formation. These findings identify a new component of thirdhand smoke that is associated with the formation of ultrafine particles (UFP) through oxidative aging of secondhand smoke. The significance of this chemistry for indoor exposure and health effects is highlighted. JF - Atmospheric Environment AU - Sleiman, Mohamad AU - Destaillats, Hugo AU - Smith, Jared D AU - Liu, Chen-Lin AU - Ahmed, Musahid AU - Wilson, Kevin R AU - Gundel, Lara A AD - Indoor Environment Department, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 70-108B, Berkeley, CA 94720, USA, msleiman@lbl.gov Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 4191 EP - 4198 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 44 IS - 34 SN - 1352-2310, 1352-2310 KW - Pollution Abstracts; Environment Abstracts; Meteorological & Geoastrophysical Abstracts KW - Particle size KW - Particle size distribution KW - Aerosols KW - Mobility KW - Organic aerosols in atmosphere KW - Byproducts KW - Spectral analysis KW - Mass spectrometry KW - Toxicity KW - Particulates KW - Smoke KW - Passive smoking KW - Nicotine KW - Tobacco smoke KW - Ionization KW - Laboratory experiments KW - Ozone KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/877590697?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Environment&rft.atitle=Secondary+organic+aerosol+formation+from+ozone-initiated+reactions+with+nicotine+and+secondhand+tobacco+smoke&rft.au=Sleiman%2C+Mohamad%3BDestaillats%2C+Hugo%3BSmith%2C+Jared+D%3BLiu%2C+Chen-Lin%3BAhmed%2C+Musahid%3BWilson%2C+Kevin+R%3BGundel%2C+Lara+A&rft.aulast=Sleiman&rft.aufirst=Mohamad&rft.date=2010-11-01&rft.volume=44&rft.issue=34&rft.spage=4191&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Environment&rft.issn=13522310&rft_id=info:doi/10.1016%2Fj.atmosenv.2010.07.023 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Smoke; Particle size distribution; Organic aerosols in atmosphere; Tobacco smoke; Spectral analysis; Mass spectrometry; Ionization; Laboratory experiments; Particle size; Aerosols; Passive smoking; Mobility; Nicotine; Byproducts; Particulates; Toxicity; Ozone DO - http://dx.doi.org/10.1016/j.atmosenv.2010.07.023 ER - TY - JOUR T1 - Analysis of the growth of strike-slip faults using effective medium theory AN - 872122639; 2011-053348 AB - Increases in the dimensions of strike-slip faults including fault length, thickness of fault rock and the surrounding damage zone collectively provide quantitative definition of fault growth and are commonly measured in terms of the maximum fault slip. The field observations indicate that a common mechanism for fault growth in the brittle upper crust is fault lengthening by linkage and coalescence of neighboring fault segments or strands, and fault rock-zone widening into highly fractured inner damage zone via cataclastic deformation. The most important underlying mechanical reason in both cases is prior weakening of the rocks surrounding a fault's core and between neighboring fault segments by faulting-related fractures. In this paper, using field observations together with effective medium models, we analyze the reduction in the effective elastic properties of rock in terms of density of the fault-related brittle fractures and fracture intersection angles controlled primarily by the splay angles. Fracture densities or equivalent fracture spacing values corresponding to the vanishing Young's, shear, and quasi-pure shear moduli were obtained by extrapolation from the calculated range of these parameters. The fracture densities or the equivalent spacing values obtained using this method compare well with the field data measured along scan lines across the faults in the study area. These findings should be helpful for a better understanding of the fracture density/spacing distribution around faults and the transition from discrete fracturing to cataclastic deformation associated with fault growth and the related instabilities. JF - Journal of Structural Geology AU - Aydin, Atilla AU - Berryman, James G A2 - Wibberley, Christopher A. J. A2 - Faulkner, Dan R. A2 - Schlische, Roy W. A2 - Jackson, Chris A. L. A2 - Lunn, Rebecca J. A2 - Shipton, Zoe K. Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 1629 EP - 1642 PB - Elsevier, Oxford VL - 32 IS - 11 SN - 0191-8141, 0191-8141 KW - United States KW - cataclasis KW - Jurassic KW - effective medium model KW - brittle deformation KW - Clark County Nevada KW - strike-slip faults KW - fracturing KW - deformation KW - Mesozoic KW - fractures KW - theoretical studies KW - scale models KW - Aztec Sandstone KW - Valley of Fire State Park KW - thickness KW - Nevada KW - faults KW - fault zones KW - 16:Structural geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/872122639?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Structural+Geology&rft.atitle=Analysis+of+the+growth+of+strike-slip+faults+using+effective+medium+theory&rft.au=Aydin%2C+Atilla%3BBerryman%2C+James+G&rft.aulast=Aydin&rft.aufirst=Atilla&rft.date=2010-11-01&rft.volume=32&rft.issue=11&rft.spage=1629&rft.isbn=&rft.btitle=&rft.title=Journal+of+Structural+Geology&rft.issn=01918141&rft_id=info:doi/10.1016%2Fj.jsg.2009.11.007 L2 - http://www.sciencedirect.com/science/journal/01918141 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 89 N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - JSGEDY N1 - SubjectsTermNotLitGenreText - Aztec Sandstone; brittle deformation; cataclasis; Clark County Nevada; deformation; effective medium model; fault zones; faults; fractures; fracturing; Jurassic; Mesozoic; Nevada; scale models; strike-slip faults; theoretical studies; thickness; United States; Valley of Fire State Park DO - http://dx.doi.org/10.1016/j.jsg.2009.11.007 ER - TY - JOUR T1 - On regional pressure buildup and fluid migration in response to large CO2 injection operations AN - 868010439; 2011-044066 AB - Several international researchers have in recent years evaluated the potential basin-scale hydrological impacts resulting from the storage of large volumes of CO (sub 2) in deep saline aquifers and the related large-scale brine pressurization and migration processes. It was shown in these studies that the areas impacted by pressure changes can be very large and that brine pressurization might impact caprock integrity and groundwater resources. For example, overpressure over much of a basin can provide a driving force pushing brine upward into overlying freshwater aquifers via possibly existing localized pathways. The present abstract provides recent studies and insights on this topic. We discuss the results from high-performance models for two sedimentary basins in order to illustrate the potential for regional fluid migration processes related to industrial-scale CO (sub 2) storage operations. We also provide results from sensitivity analyses to identify key parameters and processes for pressure buildup and brine migration. Here we distinguish between the near-field region comprising the projected size of the plume, where hydrogeological properties are expected to be better constrained, and the far-field region comprising the projected extent of pressure buildup, where parameter uncertainty can be quite high. We finally touch on the concept of a critical pressure threshold below which upward leakage of saline formation water into an overlying freshwater aquifer is unlikely. JF - Abstracts with Programs - Geological Society of America AU - Birkholzer, Jens T AU - Zhou, Quanlin AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 211 EP - 212 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - overpressure KW - migration KW - carbon sequestration KW - pressure KW - fresh water KW - fluid phase KW - ground water KW - carbon dioxide KW - aquifers KW - fluid injection KW - sensitivity analysis KW - movement KW - brines KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/868010439?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=On+regional+pressure+buildup+and+fluid+migration+in+response+to+large+CO2+injection+operations&rft.au=Birkholzer%2C+Jens+T%3BZhou%2C+Quanlin%3BAnonymous&rft.aulast=Birkholzer&rft.aufirst=Jens&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=211&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aquifers; brines; carbon dioxide; carbon sequestration; fluid injection; fluid phase; fresh water; ground water; migration; movement; overpressure; pressure; sensitivity analysis; water resources ER - TY - JOUR T1 - Studying nanoparticle aggregate structure by cryogenic electron tomography AN - 868010123; 2011-043843 AB - Nanoparticles in aqueous suspension frequently form complex structures via aggregation. Aggregate morphology is believed to affect transport of nanoparticles in surface and groundwater, and to reduce the accessibility and hence the effective reactivity of nanoparticle surfaces. Characterization of the aggregate structures formed in solution has historically been very difficult. Small-angle scattering techniques can be performed in situ, but data interpretation is typically based upon a predetermined structural model. Traditional methods in electron microscopy require dry samples, which severely alters aggregate morphology. We have adapted techniques in cryogenic electron microscopy (cryo-EM) to circumvent these issues. Using a rapid freezing method, suspended nanoparticle aggregates may be preserved intact within vitreous ice and studied in a transmission electron microscope. We are using cryo-EM to obtain real space images of iron oxyhydroxide nanoparticles and their aggregates in solution. By applying tomographic techniques, we can reconstruct a three-dimensional representation of the distribution of nanoparticles in suspension. This provides insight into the interaction forces between non-aggregated nanoparticles, and directly reveals the morphology of aggregates when they have formed. We will show how the aqueous environment, particularly ionic strength, affects aggregate structure. In complementary experiments we are studying the transport of nanoparticle aggregates through a saturated silica column, and we will discuss the relationship between aggregate structure and transport. JF - Abstracts with Programs - Geological Society of America AU - Legg, Benjamin A AU - Comolli, Luis R AU - Gilbert, Benjamin AU - Banfield, Jill F AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 170 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - transmission electron microscopy KW - tomography KW - aggregate KW - oxyhydroxides KW - surface water KW - iron oxyhydroxides KW - cryogenic electron tomography KW - suspended materials KW - aqueous solutions KW - solution KW - ground water KW - morphology KW - hydroxides KW - reactivity KW - transport KW - chemical properties KW - oxides KW - nanoparticles KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/868010123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Studying+nanoparticle+aggregate+structure+by+cryogenic+electron+tomography&rft.au=Legg%2C+Benjamin+A%3BComolli%2C+Luis+R%3BGilbert%2C+Benjamin%3BBanfield%2C+Jill+F%3BAnonymous&rft.aulast=Legg&rft.aufirst=Benjamin&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aggregate; aqueous solutions; chemical properties; cryogenic electron tomography; ground water; hydroxides; iron oxyhydroxides; morphology; nanoparticles; oxides; oxyhydroxides; reactivity; solution; surface water; suspended materials; tomography; transmission electron microscopy; transport ER - TY - JOUR T1 - In situ measurement of the fractal dimension of colloid deposits in porous media AN - 868010116; 2011-043842 AB - Clogging, defined as the reduction of permeability, is a major challenge in subsurface remediation, aquifer management, and reservoir hydraulics. Clogging in environmental porous media such as these results from several mechanisms, including deposition of colloids, precipitation of deposits, and growth of biofilms. Previous work indicates that clogging by colloid deposition depends not only on the quantity of colloids, but also on their structure. This presentation reports proof-of-principle results demonstrating that it is possible to use static light scattering (SLS) in index-matched porous media to measure deposit structure in situ, by characterizing the dendritic structure of colloid deposits as a fractal dimension. Specifically, the deposition of polystyrene microspheres is characterized within granular Nafion, where the index-matching fluid is an isopropanol/water mixture. The feasibility of the proposed technique is demonstrated by comparison of the SLS data acquired from stable and unstable colloids in ordinary suspensions to SLS data acquired within index-matched porous medium. These results establish a foundation for future efforts to investigate a possible quantitative link between physical, chemical, and biological conditions, deposit structure, clogging, and consequent effects on flow and transport in porous media. JF - Abstracts with Programs - Geological Society of America AU - Mays, David C AU - Cannon, Orion T AU - Kanold, Adam W AU - Harris, Kevin J AU - Lei, Tim C AU - Gilbert, Benjamin AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 170 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - colloidal materials KW - in situ KW - porous materials KW - mathematical geology KW - fractals KW - permeability KW - feasibility studies KW - measurement KW - 15:Miscellaneous UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/868010116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=In+situ+measurement+of+the+fractal+dimension+of+colloid+deposits+in+porous+media&rft.au=Mays%2C+David+C%3BCannon%2C+Orion+T%3BKanold%2C+Adam+W%3BHarris%2C+Kevin+J%3BLei%2C+Tim+C%3BGilbert%2C+Benjamin%3BAnonymous&rft.aulast=Mays&rft.aufirst=David&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=170&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - colloidal materials; feasibility studies; fractals; in situ; mathematical geology; measurement; permeability; porous materials ER - TY - JOUR T1 - Ultrafast X-ray and optical transient absorption spectroscopy of the reductive dissolution of iron oxide nanoparticles AN - 868007812; 2011-043838 AB - The reduction of Fe(III) is one of the most important chemical changes that takes place in the development of anaerobic soils and sediments, and the reductive dissolution of iron-bearing minerals by microbes plays a critical role in this process. Despite its importance in biogeochemistry, many questions remain about the mechanism of this electron transfer reaction, in part because the speed of the fundamental chemical steps renders them inaccessible to conventional study. Time-resolved X-ray spectroscopy is a technique that can overcome this limitation and measure changes in oxidation state and structure occurring on the ultrafast timescale. We use this approach, in conjunction with femtosecond optical spectroscopy, to measure electron transfer rates and the speciation of Fe atoms in iron oxide nanoparticles following laser excitation of a surface-bound dye molecule. Both maghemite and ferrihydrite nanoparticles were synthesized by co-precipitation of Fe (super 3+) in basic solution with a varying amount of Fe (super 2+) , giving particles 1.5-3 nm in diameter. UV/vis absorption and fluorescence spectroscopy showed that the dye, 2,7-dichlorofluorescein, binds strongly to the particle surface and that its emission is quenched fully when bound. Under steady-state photoexcitation, dye-sensitized particles evolve Fe (super 2+) (aq) over time, indicating electron transfer from sensitizer to particle followed by reductive dissolution. Pump-probe X-ray absorption spectroscopy measurements at the Fe K edge show the transient formation of reduced iron species within approximately 100 ps following laser excitation of the dye molecule, which is not seen. Ultrafast optical spectroscopy of the sensitizer molecule shows electron injection occurs within the X-ray pulse length. No transient species were observed in control experiments using unsensitized particles.nanoparticles. These data represent the first direct real-time observation of the dynamics of ferrous ion formation and its subsequent transformations in iron oxide. JF - Abstracts with Programs - Geological Society of America AU - Katz, Jordan E AU - Gilbert, Benjamin AU - Zhang, Xiaoyi AU - Attenkofer, Klaus AU - Falcone, Roger AU - Waychunas, Glenn A AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 169 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - iron oxides KW - electron transfer KW - biochemistry KW - optical spectra KW - solution KW - ferrihydrite KW - iron KW - ferrous iron KW - ferric iron KW - absorption KW - transient phenomena KW - chemical reactions KW - precipitation KW - metals KW - X-ray fluorescence spectra KW - oxides KW - spectra KW - reduction KW - transformations KW - nanoparticles KW - maghemite KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/868007812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Ultrafast+X-ray+and+optical+transient+absorption+spectroscopy+of+the+reductive+dissolution+of+iron+oxide+nanoparticles&rft.au=Katz%2C+Jordan+E%3BGilbert%2C+Benjamin%3BZhang%2C+Xiaoyi%3BAttenkofer%2C+Klaus%3BFalcone%2C+Roger%3BWaychunas%2C+Glenn+A%3BAnonymous&rft.aulast=Katz&rft.aufirst=Jordan&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=169&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absorption; biochemistry; chemical reactions; electron transfer; ferric iron; ferrihydrite; ferrous iron; iron; iron oxides; maghemite; metals; nanoparticles; optical spectra; oxides; precipitation; reduction; solution; spectra; transformations; transient phenomena; X-ray fluorescence spectra ER - TY - JOUR T1 - Organization and reorganization during matrix assembly and mineralization; the non-classical route to the crystalline state AN - 868007762; 2011-043834 AB - Assembly of organic matrices and subsequent directed nucleation of mineral constituents is a widespread paradigm in biomineralization; the architecture of the underlying matrix imposes order on the nucleating mineral species. In recent years, the importance of amorphous or disordered precursor phases and multi-stage mineralization pathways during matrix-directed mineral growth has become increasingly apparent. However, the influence of the matrix on these complex pathways or the process by which the matrices themselves become organized remains unclear. Here we present results from in situ optical, force and electron microscopy as well as polarization-dependent NEXAFS investigations on three systems in which we examine the dynamics of organization and reorganization during matrix assembly and directed mineralization. These systems include surface-layer proteins from microbial systems, which can serve as matrices for calcium carbonate formation, calcium carbonate on self-assembled monolayers, and calcium phosphate on collagen. In each case, the system passes through an initial amorphous state before reaching the final ordered state. Moreover, where quantitative analyses of nucleation rates have been possible, they indicate that the thermodynamic barrier is not a significant factor in determining the pathway. For example, even when the free energy barrier for nucleation of amorphous calcium phosphate (ACP) is two orders of magnitude larger than that for hydroxyapatite (HAP), ACP is the first phase to form. The system then transforms to octacalcium phosphate before finally forming HAP. Consequently, kinetic barriers that appear in the pre-exponential factor of the nucleation rate equations are likely to be rate limiting. In the case of the surface-layer proteins, the important barrier appears to be that associated with the folding of the monomers into their tetrameric configuration. In the case of the mineralizing systems, the nature of these barriers is unknown, but we hypothesize that they are associated with factors that direct the structure of the solvated species. JF - Abstracts with Programs - Geological Society of America AU - DeYoreo, J J AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 168 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - biomineralization KW - hydroxylapatite KW - amorphous materials KW - biochemistry KW - matrix KW - free energy KW - crystal growth KW - phosphates KW - order-disorder KW - organic compounds KW - biogenic processes KW - calcium phosphate KW - nucleation KW - collagen KW - mineralization KW - calcium carbonate KW - transformations KW - thermodynamic properties KW - proteins KW - microorganisms KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/868007762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Organization+and+reorganization+during+matrix+assembly+and+mineralization%3B+the+non-classical+route+to+the+crystalline+state&rft.au=DeYoreo%2C+J+J%3BAnonymous&rft.aulast=DeYoreo&rft.aufirst=J&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=168&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - amorphous materials; biochemistry; biogenic processes; biomineralization; calcium carbonate; calcium phosphate; collagen; crystal growth; free energy; hydroxylapatite; matrix; microorganisms; mineralization; nucleation; order-disorder; organic compounds; phosphates; proteins; thermodynamic properties; transformations ER - TY - JOUR T1 - Incorporating geochemical and microbial kinetics in reactive transport models for generation of acid rock drainage AN - 868007511; 2011-044018 AB - Acid rock drainage, ARD, results from the oxidation of metal sulfide minerals (e.g. pyrite), producing ferrous iron and sulfuric acid. Acidophilic autotrophic bacteria such as Acidithiobacillus ferrooxidans and Leptospirillum ferrooxidans obtain energy by oxidizing ferrous iron back to ferric iron, using oxygen as the electron acceptor. Despite being extensively studied for the last thirty years, there is still not a consensus in the literature about the basic mechanisms, limiting factors or rate expressions for microbially enhanced oxidation of metal sulfides. Most existing models of ARD do not account for microbial kinetics or iron geochemistry rigorously. Instead they assume that oxygen limitation controls pyrite oxidation and thus focus on oxygen transport. These models have been successfully used for simulating conditions where oxygen availability is a limiting factor (e.g. source prevention by capping), but have not been shown to effectively model acid generation and effluent chemistry under a wider range of conditions. An indirect leaching mechanism (chemical oxidation of pyrite by ferric iron to produce ferrous iron, with regeneration of ferric iron by microbial oxidation of ferrous iron) is used as the foundation of a conceptual model for microbially enhanced oxidation of pyrite. Using literature data, a rate expression for microbial consumption of ferrous iron is developed that accounts for oxygen, ferrous iron and pH limitation. Reaction rate expressions for oxidation of pyrite and chemical oxidation of ferrous iron are selected from the literature. A completely mixed stirred tank reactor (CSTR) model is implemented coupling the kinetic rate expressions, speciation calculations and flow. The model simulates generation of ARD and effluent chemistry that qualitatively agrees with column reactor and single rock experiments. A one dimensional reaction diffusion model at the scale of a single rock is developed incorporating the proposed kinetic rate expressions. Simulations of initiation, washout and ARD flows are discussed to gain a better understanding of the role of porosity, effective diffusivity and reactive surface area in generating ARD. Simulations indicate that flow boundary conditions control generation of acid rock drainage as porosity increases. JF - Abstracts with Programs - Geological Society of America AU - Andre, Benjamin J AU - Rajaram, Harihar AU - Silverstein, Joann AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 203 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - sulfuric acid KW - oxygen KW - oxidation KW - acid rock drainage KW - porosity KW - iron KW - ferrous iron KW - autotrophic taxa KW - ferric iron KW - acidophilic taxa KW - transport KW - metals KW - bacteria KW - reactive transport KW - pyrite KW - leaching KW - sulfides KW - kinetics KW - inorganic acids KW - geochemistry KW - microorganisms KW - diffusivity KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/868007511?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Incorporating+geochemical+and+microbial+kinetics+in+reactive+transport+models+for+generation+of+acid+rock+drainage&rft.au=Andre%2C+Benjamin+J%3BRajaram%2C+Harihar%3BSilverstein%2C+Joann%3BAnonymous&rft.aulast=Andre&rft.aufirst=Benjamin&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=203&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - acid rock drainage; acidophilic taxa; autotrophic taxa; bacteria; diffusivity; ferric iron; ferrous iron; geochemistry; inorganic acids; iron; kinetics; leaching; metals; microorganisms; oxidation; oxygen; porosity; pyrite; reactive transport; sulfides; sulfuric acid; transport ER - TY - JOUR T1 - Overview of current energy-efficiency policies in China AN - 855684872; 13944633 AB - From 1970 to 2001, China was able to significantly limit energy demand growth through aggressive energy-efficiency programs. Energy use per unit of gross domestic product (GDP) declined by approximately 5% per year during this period. However, the period 2002-2005 saw energy use per unit of GDP increase an average of 3.8% per year. To stem this out-of-control growth in energy demand, in November 2005 the Chinese government enunciated a mandatory goal of 20% reduction of energy intensity between 2006 and 2010. The National People's Congress passed legislation identifying the National Reform and Development Commission as the lead agency to design and carry out programs in support of this goal. These policies and programs, created after almost a decade of decline of the energy-efficiency policy apparatus, have had considerable impact. Although initial efforts have not been sufficient to meet the annual declines required to reach the ambitious 20% energy intensity target, the latest reports indicate that China may now be on track to meet this goal. The paper provides an assessment of these policies and programs to begin to understand issues that will play a critical role in China's energy and economic future. Activities undertaken in China will have a significant influence on the global effort to reduce the growth, and later the absolute quantity, of greenhouse gas emissions. JF - Energy Policy AU - Zhou, Nan AU - Levine, Mark D AU - Price, Lynn AD - China Energy Group, Energy Analysis Department, Environmental Energy Technologies Division, Ernest Orlando Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90R4000, Berkeley, CA 94720, USA, NZhou@lbl.gov Y1 - 2010/11// PY - 2010 DA - Nov 2010 SP - 6439 EP - 6452 PB - Elsevier Science, Box 882 New York NY 10159 USA VL - 38 IS - 11 SN - 0301-4215, 0301-4215 KW - Environment Abstracts; Sustainability Science Abstracts KW - China KW - Energy-efficiency KW - Energy intensity KW - energy demand KW - commissions KW - energy policy KW - Congress KW - Economics KW - Emissions KW - China, People's Rep. KW - Energy consumption KW - Greenhouse gases KW - Legislation KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855684872?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Policy&rft.atitle=Overview+of+current+energy-efficiency+policies+in+China&rft.au=Zhou%2C+Nan%3BLevine%2C+Mark+D%3BPrice%2C+Lynn&rft.aulast=Zhou&rft.aufirst=Nan&rft.date=2010-11-01&rft.volume=38&rft.issue=11&rft.spage=6439&rft.isbn=&rft.btitle=&rft.title=Energy+Policy&rft.issn=03014215&rft_id=info:doi/10.1016%2Fj.enpol.2009.08.015 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - commissions; energy demand; energy policy; Congress; Economics; Emissions; Energy consumption; Greenhouse gases; Legislation; China, People's Rep. DO - http://dx.doi.org/10.1016/j.enpol.2009.08.015 ER - TY - JOUR T1 - Preliminary evaluation of the Section 1603 treasury grant program for renewable power projects in the United States AN - 855684062; 13944670 AB - This article evaluates the first year of the Section 1603 Treasury cash grant program, which enables renewable power projects in the US to elect cash grants in lieu of the federal tax credits that are otherwise available. To date, the program has been heavily subscribed, particularly by wind power projects, which had received 86% of the nearly $2.6 billion in grants that had been disbursed as of March 1, 2010. As of that date, 6.2 GW of the 10 GW of new wind capacity installed in the US in 2009 had applied for grants in lieu of production tax credits. Roughly 2.4 GW of this wind capacity may not have otherwise been built in 2009 in the absence of the grant program; this 2.4 GW may have supported approximately 51,600 short-term full-time-equivalent (FTE) gross job-years in the US during the construction phase of these wind projects, and 3860 long-term FTE gross jobs during the operational phase. The program's popularity stems from the significant economic value that it provides to renewable power projects, relative to the otherwise available tax credits. Although grants reward investment rather than efficient performance, this evaluation finds no evidence at this time of either widespread "gold-plating" or performance problems. JF - Energy Policy AU - Bolinger, Mark AU - Wiser, Ryan AU - Darghouth, Naiem AD - Lawrence Berkeley National Laboratory, MS 90-4000, One Cyclotron Road, Berkeley, California 94720, USA, MABolinger@lbl.gov Y1 - 2010/11// PY - 2010 DA - Nov 2010 SP - 6804 EP - 6819 PB - Elsevier Science, Box 882 New York NY 10159 USA VL - 38 IS - 11 SN - 0301-4215, 0301-4215 KW - Environment Abstracts; Sustainability Science Abstracts KW - Wind power KW - Cash versus tax incentives KW - Financing KW - Taxation KW - USA KW - Wind energy KW - energy policy KW - Economics KW - grants KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855684062?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Policy&rft.atitle=Preliminary+evaluation+of+the+Section+1603+treasury+grant+program+for+renewable+power+projects+in+the+United+States&rft.au=Bolinger%2C+Mark%3BWiser%2C+Ryan%3BDarghouth%2C+Naiem&rft.aulast=Bolinger&rft.aufirst=Mark&rft.date=2010-11-01&rft.volume=38&rft.issue=11&rft.spage=6804&rft.isbn=&rft.btitle=&rft.title=Energy+Policy&rft.issn=03014215&rft_id=info:doi/10.1016%2Fj.enpol.2010.06.054 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Taxation; Wind energy; energy policy; Economics; grants; USA DO - http://dx.doi.org/10.1016/j.enpol.2010.06.054 ER - TY - JOUR T1 - Quasi-static analysis of elastic behavior for some systems having higher fracture densities AN - 840344788; 2011-012540 AB - Elastic behavior of geomechanical systems with interacting (but not intersecting) fractures is treated using generalizations of the Backus and the Schoenberg-Muir methods for analyzing layered systems whose layers are intrinsically anisotropic due to locally aligned fractures. By permitting the axis of symmetry of the locally anisotropic compliance matrix for individual layers to differ from that of the layering direction, we derive analytical formulas for interacting fractured regions with arbitrary orientations to each other. This procedure provides a systematic tool for studying how contiguous, but not yet intersecting, fractured domains interact, and provides a direct (though approximate) means of predicting when and how such interactions lead to more dramatic weakening effects and ultimately to failure of these complicated systems. The method permits decomposition of the system elastic behavior into specific eigenmodes that can all be analyzed, and provides a better understanding about which of these specific modes are expected to be most important to the evolving failure process. Abstract Copyright (2010), John Wiley & Sons, Ltd. JF - International Journal for Numerical and Analytical Methods in Geomechanics AU - Berryman, James G AU - Aydin, Atilla Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 1687 EP - 1724 PB - Wiley, Chichester VL - 34 IS - 16 SN - 0363-9061, 0363-9061 KW - orientation KW - patterns KW - elasticity KW - density KW - behavior KW - stiffness KW - fluid phase KW - elastic constants KW - layered materials KW - rock mechanics KW - flows KW - fractures KW - cracks KW - torsion KW - anisotropy KW - Young's modulus KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/840344788?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+for+Numerical+and+Analytical+Methods+in+Geomechanics&rft.atitle=Quasi-static+analysis+of+elastic+behavior+for+some+systems+having+higher+fracture+densities&rft.au=Berryman%2C+James+G%3BAydin%2C+Atilla&rft.aulast=Berryman&rft.aufirst=James&rft.date=2010-11-01&rft.volume=34&rft.issue=16&rft.spage=1687&rft.isbn=&rft.btitle=&rft.title=International+Journal+for+Numerical+and+Analytical+Methods+in+Geomechanics&rft.issn=03639061&rft_id=info:doi/10.1002%2Fnag.874 L2 - http://www3.interscience.wiley.com/journal/3312/home LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2011-01-01 N1 - Number of references - 46 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anisotropy; behavior; cracks; density; elastic constants; elasticity; flows; fluid phase; fractures; layered materials; orientation; patterns; rock mechanics; stiffness; torsion; Young's modulus DO - http://dx.doi.org/10.1002/nag.874 ER - TY - JOUR T1 - The CO sub(2) abatement cost curve for the Thailand cement industry AN - 787283671; 13715025 AB - The cement industry is one of the largest carbon dioxide (CO sub(2)) emitters in the Thai industry. The cement sector accounted for about 20,633 kilotonnes (ktonnes) CO sub(2) emissions in 2005 in Thailand. A bottom-up CO sub(2) abatement cost curve (ACC) is constructed in this study for the Thai cement industry to determine the potentials and costs of CO sub(2) abatement, taking into account the costs and CO sub(2) abatement of different technologies. The period of 2010-2025 is chosen as the scenario period. We analyzed 41 CO sub(2) abatement technologies and measures for the cement industry. Using the bottom-up CO sub(2) ACC model, the cost-effective annual CO sub(2) abatement potential for the Thai cement industry during the 15 year scenario period (2010-2025) is equal to 3095 ktonnes CO sub(2)/year. This is about 15% of the Thai cement industry's total CO sub(2) emissions in 2005. The total technical annual CO sub(2) abatement potential is 3143 ktonnes CO sub(2)/year, which is about 15.2% of the Thai cement industry's total CO sub(2) emissions in 2005. We also conducted a sensitivity analysis for the discount rate parameter. JF - Journal of Cleaner Production AU - Hasanbeigi, Ali AU - Menke, Christoph AU - Price, Lynn AD - The Joint Graduate School of Energy and Environment, King Mongkut' s University of Technology Thonburi, 126 Pracha-uthit Rd. Bangmod, Tungkru, Bangkok 10140, Thailand, AHasanbeigi@lbl.gov Y1 - 2010/11// PY - 2010 DA - Nov 2010 SP - 1507 EP - 1516 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 18 IS - 15 SN - 0959-6526, 0959-6526 KW - Environment Abstracts; Sustainability Science Abstracts; Pollution Abstracts KW - Abatement cost curve KW - Cement industry KW - Abatement technologies KW - Cement KW - Thailand KW - sensitivity analysis KW - Economics KW - Emissions KW - Carbon dioxide KW - Technology KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/787283671?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Cleaner+Production&rft.atitle=The+CO+sub%282%29+abatement+cost+curve+for+the+Thailand+cement+industry&rft.au=Hasanbeigi%2C+Ali%3BMenke%2C+Christoph%3BPrice%2C+Lynn&rft.aulast=Hasanbeigi&rft.aufirst=Ali&rft.date=2010-11-01&rft.volume=18&rft.issue=15&rft.spage=1507&rft.isbn=&rft.btitle=&rft.title=Journal+of+Cleaner+Production&rft.issn=09596526&rft_id=info:doi/10.1016%2Fj.jclepro.2010.06.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Cement; sensitivity analysis; Economics; Emissions; Carbon dioxide; Technology; Thailand DO - http://dx.doi.org/10.1016/j.jclepro.2010.06.005 ER - TY - JOUR T1 - The challenge of reducing energy consumption of the Top-1000 largest industrial enterprises in China AN - 1777163493; 13944637 AB - In 2005, the Chinese government announced an ambitious goal of reducing energy consumption per unit of gross domestic product (GDP) by 20% between 2005 and 2010. One of the key initiatives for realizing this goal is the Top-1000 Energy-Consuming Enterprises program. The energy consumption of these 1000 enterprises accounted for 33% of national and 47% of industrial energy usage in 2004. Under the Top-1000 program, 2010 energy consumption targets were determined for each enterprise. The objective of this article is to evaluate the program design and initial results, given limited information and data, to understand the possible implications of its success in terms of energy and carbon dioxide emission reductions and to recommend future program modifications based on international experience with similar target-setting agreement programs. Even though the Top-1000 program was designed and implemented rapidly, it appears that - depending upon the GDP growth rate - it could contribute to somewhere between approximately 10% and 25% of the savings required to support China's efforts to meet a 20% reduction in energy use per unit of GDP by 2010. JF - Energy Policy AU - Price, Lynn AU - Wang, Xuejun AU - Yun, Jiang AD - China Energy Group, Energy Analysis Department, Environmental Energy Technologies Division, Ernest Orlando Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90R4000, Berkeley, CA 94720, United States Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 6485 EP - 6498 PB - Elsevier Science, Box 882 New York NY 10159 USA VL - 38 IS - 11 SN - 0301-4215, 0301-4215 KW - Materials Business File (MB); Environmental Engineering Abstracts (EN) KW - Top-1000 KW - Industrial energy efficiency KW - China KW - Energy use KW - Reduction KW - Energy policy KW - Domestic KW - Governments KW - Energy consumption KW - Carbon dioxide KW - Industrial energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777163493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Policy&rft.atitle=The+challenge+of+reducing+energy+consumption+of+the+Top-1000+largest+industrial+enterprises+in+China&rft.au=Price%2C+Lynn%3BWang%2C+Xuejun%3BYun%2C+Jiang&rft.aulast=Price&rft.aufirst=Lynn&rft.date=2010-11-01&rft.volume=38&rft.issue=11&rft.spage=6485&rft.isbn=&rft.btitle=&rft.title=Energy+Policy&rft.issn=03014215&rft_id=info:doi/10.1016%2Fj.enpol.2009.02.036 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.enpol.2009.02.036 ER - TY - JOUR T1 - Structural study of biotic and abiotic nanocrystalline manganese oxides using atomic pair distribution function technique AN - 1438972880; 2013-076331 AB - Atomic pair distribution function (PDF) analysis is a powerful technique to determine crystal structures of nanoparticulate, poorly crystalline and amorphous materials. The PDF technique recently has been applied in the structural characterization of several disordered environmental minerals, such as ferrihydrite and imogolite. In this study, we used PDF analysis to investigate the structures of nanophase manganese (Mn) oxides. Mn-oxides, including both layered and tunnel structures, are strong oxidants and extraordinary metal sorbents in nature. Naturally-occurring Mn-oxides often have poor crystallinity as determined via XRD, and neither XRD nor EXAFS techniques are able to fully interpret, or even differentiate, their structures. For example, amorphous todorokite (3 X 3 tunnel structure) and birnessite (layered structure) cannot be differentiated by XRD and EXAFS if they are so disordered that 7 or 10 Aa d-spacing is not observed. delta -MnO) , polymeric MnO (sub 2) and biogenic Mn-oxides are most often used as analogs to investigate the environmental behaviors of natural poorly crystalline Mn-oxides. Our PDF results indicate that delta MnO (sub 2) , polymeric MnO (sub 2) and a biogenic Mn-oxide sample are layered structures with nearly hexagonal symmetry. The particle size and shape are refined during the structural modeling for the PDF simulation. The best model accurately allowing simulation of the PDFs is a monoclinic structure with the C2/m space group using a disk-like shape factor with a high degree of stacking disorder. These results help in understanding the reactivity and mineralogy of several naturally-occurring Mn-oxide minerals. JF - Abstracts with Programs - Geological Society of America AU - Zhu, Mengqiang AU - Farrow, Christopher AU - Post, Jeffrey E AU - Livi, Kenneth AU - Billinge, Simon AU - Ginder-Vogel, Matthew AU - Sparks, Donald AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 62 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - models KW - reactivity KW - X-ray diffraction data KW - manganese oxides KW - EXAFS data KW - oxides KW - crystal structure KW - simulation KW - nanoparticles KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438972880?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Structural+study+of+biotic+and+abiotic+nanocrystalline+manganese+oxides+using+atomic+pair+distribution+function+technique&rft.au=Zhu%2C+Mengqiang%3BFarrow%2C+Christopher%3BPost%2C+Jeffrey+E%3BLivi%2C+Kenneth%3BBillinge%2C+Simon%3BGinder-Vogel%2C+Matthew%3BSparks%2C+Donald%3BAnonymous&rft.aulast=Zhu&rft.aufirst=Mengqiang&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=62&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-03 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - crystal structure; EXAFS data; manganese oxides; models; nanoparticles; oxides; reactivity; simulation; X-ray diffraction data ER - TY - JOUR T1 - Water structure and hydration properties of imogolite nanotubes AN - 1438972820; 2013-076330 AB - Imogolite is a nanotubular aluminosilicate present in the clay fraction of volcanic soils. It has high specific surface areas ( approximately 500 m (super 2) /g) and is one of the few minerals reactive towards both anions and cations under the same soil physico-chemical conditions, properties which make it an important constituent of the soils where it is present. However, precise determinations of imogolite structure and geochemical reactivity have been hindered by its nano-crystalline character. Structural analyses, until now, were restricted to standard X-ray and electron diffraction techniques, the diffraction peaks being used mainly as fingerprints for the identification of the mineral in soils. In this work, we present a detailed structural characterization of the structure of synthetic imogolite using high-energy X-ray diffraction (HEXRD), neutron diffraction with isotopic substitution (NDIS), transmission electron microscopy (TEM), and molecular dynamics (MD) simulation methods. Theoretical and experimental investigations of the structure of water at the imogolite-water interface revealed the presence of highly structured water shells both at the surface and inside the nanotubes. We used these structural inputs to develop a geochemical multi-site complexation (MUSIC) model of the acidity of surface Al (sub 2) -OH groups on the external surface of imogolite and compared this to the acidity of similar sites on the equivalent (but planar) surface of gibbsite. This comparison yielded insights into the influence of surface curvature on mineral reactivity. Our MD simulations also probed the energetics of water adsorption and revealed that the external surface of imogolite is more hydrophobic than that of gibbsite. Ongoing work involving the use of inelastic neutron scattering also will be presented and discussed. JF - Abstracts with Programs - Geological Society of America AU - Fernandez-Martinez, Alejandro AU - Cuello, Gabriel J AU - Bourg, Ian C AU - Johnson, Mark R AU - Waychunas, Glenn A AU - Sposito, Garrison AU - Charlet, Laurent AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 62 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - silicates KW - X-ray diffraction data KW - physicochemical properties KW - complexing KW - structural analysis KW - properties KW - simulation KW - TEM data KW - clay minerals KW - models KW - hydration KW - reactivity KW - aluminosilicates KW - nanotubes KW - sheet silicates KW - imogolite KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438972820?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Water+structure+and+hydration+properties+of+imogolite+nanotubes&rft.au=Fernandez-Martinez%2C+Alejandro%3BCuello%2C+Gabriel+J%3BBourg%2C+Ian+C%3BJohnson%2C+Mark+R%3BWaychunas%2C+Glenn+A%3BSposito%2C+Garrison%3BCharlet%2C+Laurent%3BAnonymous&rft.aulast=Fernandez-Martinez&rft.aufirst=Alejandro&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=62&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-03 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - aluminosilicates; clay minerals; complexing; hydration; imogolite; models; nanotubes; physicochemical properties; properties; reactivity; sheet silicates; silicates; simulation; structural analysis; TEM data; X-ray diffraction data ER - TY - JOUR T1 - Structural incorporation as a means of metal sequestration into nanoparticle aggregates AN - 1438972699; 2013-076335 AB - Iron oxyhydroxide nanoparticles play an important role in the mobility of metal species through sorption/desorption processes. Additionally, the often rapid aggregation of nanophases in aqueous systems can lead to changes in their structure, surface area, porosity, and reactivity that may modify the mechanisms by which metal ions are retained and therefore the long-term potential of metal sequestration in the solid phase. Interparticle (nano)pore spaces may also present new incorporation mechanisms or preferentially favor specific mechanisms for metal uptake and retention. Batch adsorption/desorption experiments and spectroscopic analysis were used to investigate the uptake, retention, and speciation of metals onto and within nanoscale iron oxyhydroxides exposed to conditions that induce nanoparticle aggregation. Aqueous Cu(II) or Zn(II) was added to synthetic 5-nm iron oxyhydroxide particle suspensions which were then aggregated through increases in pH, ionic strength, or temperature. A desorption step was then induced by lowering the pH back below each metal's macroscopic absorption edge. EXAFS studies of the solid aggregates suggest that the desorption step removes the weakly-held (i.e. outer-sphere, surface-bound) metal fraction but retains more strongly-held metal species that transition from inner-sphere surface complexes to structurally incorporated species within the nanoparticle aggregates. Elevated temperature most dramatically enhances the process, likely due to ripening/healing of aggregated nanoparticles over time. This may represent a primary and common mechanism of metal retention among nanoparticles compared to surface precipitation, occlusion, and solid solution formation, terms often used collectively to describe the co-precipitation of metals. Macroscopic studies of the filtered supernatants reveal metal-specific differences in adsorption/desorption behavior over time, with desorption of Zn(II) followed by re-adsorption and structural incorporation with both temperature and time. Additionally, ion selective electrode in situ measurements indicate that while aggregation pathway does not have a substantial effect on metal ion uptake under the conditions examined, it appears to be the main determinant of Cu(II) retention when desorption is induced. JF - Abstracts with Programs - Geological Society of America AU - Kim, Christopher S AU - Dale, James G AU - Stegemeier, John P AU - Gilbert, Benjamin AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 63 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - zinc KW - desorption KW - copper KW - precipitation KW - metals KW - EXAFS data KW - crystal structure KW - adsorption KW - nanoparticles KW - temperature KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438972699?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Structural+incorporation+as+a+means+of+metal+sequestration+into+nanoparticle+aggregates&rft.au=Kim%2C+Christopher+S%3BDale%2C+James+G%3BStegemeier%2C+John+P%3BGilbert%2C+Benjamin%3BAnonymous&rft.aulast=Kim&rft.aufirst=Christopher&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-03 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - adsorption; copper; crystal structure; desorption; EXAFS data; metals; nanoparticles; precipitation; temperature; zinc ER - TY - JOUR T1 - Precipitation of hydrous ferric oxide nanoparticles and their morphological and structural transformation AN - 1438972641; 2013-076340 AB - Precipitation of iron oxide nanoparticles and films on mineral surfaces can significantly influence the fate and transport of toxic metal contaminants and potentially alter the porosity and permeability of geo-media. Therefore, more accurate quantitative and qualitative information about the mechanisms and kinetics of nanoparticle development at surfaces is required. However, direct in situ observations of nanoparticle development have been challenging because of lack of proper tools. In this work, we have used a time-resolved simultaneous small angle X-ray scattering (SAXS)/grazing incidence (GISAXS) setup for real-time monitoring of water-mineral interfacial reactions. The size, shape, and distribution of hydrous ferric oxide nanoparticles on quartz surfaces as well as in solutions and their growth modes were monitored as a function of exposure time, ionic strength, and the presence of arsenate. Nanoparticles formed preferrentially along steps rather than terraces due to highly reactive dangling bonds at steps. Under aqueous conditions, newly formed nanoparticles did not exhibit any facets. However, clear facet formation of ferric oxide nanoparticles at surfaces were observed when they were dried overnight. This implies the importance of in situ observations of hydrous oxide nanoparticles. In the absence of any other metal ions, the earliest nuclei sizes of iron oxides are 1.7 + or - 0.5 nm. On the other hand, the presence of arsenate ions significantly influenced nanoparticle sizes and crystallinities of hydrous nanoparticles and altered the kinetics of the ferric oxide nucleation and growth. For comparison, we conducted complementary measurements of their morphology with atomic force microscopy for interfacial observations, as well as dynamic light scattering and high resolution transmission electron microscopy for particle observations in solutions. Using an environmental in situ time-resolved SAXS/GISAXS setup, this study provides more accurate depiction of evolving nanoparticle distributions and topology at an active interface without dehydration. Our findings have implications not only to hydrous ferric oxide containing biogeochemical systems such as acid mine drainage (AMD) but also to any type of precipitation processes at solid-water interfaces in environmental research. JF - Abstracts with Programs - Geological Society of America AU - Jun, Young-Shin AU - Waychunas, Glenn A AU - Lee, Byeongdu AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 64 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - toxic materials KW - monitoring KW - iron oxides KW - in situ KW - pollution KW - mineral-water interface KW - qualitative analysis KW - porosity KW - observations KW - transport KW - quantitative analysis KW - precipitation KW - oxides KW - nanoparticles KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438972641?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Precipitation+of+hydrous+ferric+oxide+nanoparticles+and+their+morphological+and+structural+transformation&rft.au=Jun%2C+Young-Shin%3BWaychunas%2C+Glenn+A%3BLee%2C+Byeongdu%3BAnonymous&rft.aulast=Jun&rft.aufirst=Young-Shin&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=64&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-03 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - in situ; iron oxides; mineral-water interface; monitoring; nanoparticles; observations; oxides; permeability; pollution; porosity; precipitation; qualitative analysis; quantitative analysis; toxic materials; transport ER - TY - JOUR T1 - Responses of nanoparticles to different types of surface environments and ligands AN - 1438972306; 2013-076332 AB - Nanoparticles prepared for technological purposes are generally stabilized by surface ligands that passivate them against further growth, and unwanted chemical reactions. Such stabilization (or lack of it) can also have a major effect on the nanoparticle structure by affecting the strain profile throughout the particle, and controlling whether structural transformations are readily promoted. Natural nanoparticles may also be stabilized by the presence of a surface layer or thin shell of sorbed ligands, and this study investigated how different ligand types (NaCl, CaCl (sub 2) , Na (sub 2) SO (sub 4) , C (super 6) H (super 6) S, H (super 2) O, C (super 6) H (super 5) Cl, CH (super 3) OH) affected the internal structures and strain in synthetic 3 nm ZnS nanoparticles. The work was in part motivated by several earlier studies of ZnS strain and aggregation-based transformations by Ben Gilbert and colleagues, that indicated the major influence of nanoparticle surface environment [1-3]. Using analysis of the pair-distribution-function (PDF) obtained from high energy x-ray scattering at the Advanced Photon Source, it was found that the stronger the surface ligand or surface complex binding interaction, the larger was the well-defined crystalline core of the nanoparticles, and the thinner the surface shell having high disorder [4]. Analogous molecular dynamics simulations of the ligand-nanoparticle interactions yielded very similar results. Ab initio calculations using a segment of the nanoparticle surface and the sorbed molecular group were used to quantify the interaction strength. The study verified that PDF analysis can ascertain the effect of surface ligand binding on nanoparticle structure, thereby indicating the magnitude of the surface interactions. 1. B. Gilbert, F. Huang, H. Zhang, G. A. Waychunas, and J. F. Banfield, Science 305, 651 (2004). 2. B. Gilbert, F. Huang. Z. Lin, C. Goodell, H. Zhang, and J. F. Banfield, Nano Lett. 6, 605 (2006). 3. F. Huang, B. Gilbert, H. Zhang, and J. F. Banfield, Phys. Rev. Lett. 92, 155501 (2004). 4. H. Zhang, B. Chen, Y. Ren, G. A. Waychunas, and J. F. Banfield, Phys. Rev. B 81, 125444 (2010). JF - Abstracts with Programs - Geological Society of America AU - Zhang, Hengzhong AU - Waychunas, Glenn A AU - Chen, Bin AU - Ren, Yang AU - Banfield, Jill F AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 62 EP - 63 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - ligands KW - nanoparticles KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438972306?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Responses+of+nanoparticles+to+different+types+of+surface+environments+and+ligands&rft.au=Zhang%2C+Hengzhong%3BWaychunas%2C+Glenn+A%3BChen%2C+Bin%3BRen%2C+Yang%3BBanfield%2C+Jill+F%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Hengzhong&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=62&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 4 N1 - PubXState - CO N1 - Last updated - 2013-10-03 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - geochemistry; ligands; nanoparticles ER - TY - JOUR T1 - Identification of reduced-U nanoprecipitates on the magnetite (111) surface AN - 1438971929; 2013-076338 AB - Uranyl uptake by magnetite is likely dominated by three interactions: (1) formation of surface complexes at [Fe(O,OH) (super 6) ] sites; (2) formation of surface complexes and/or coprecipitation with ferrihydrite formed by the release of Fe(II) and subsequent oxidation; and (3) heterogeneous reduction of U(VI) to U(IV) by Fe(II). These processes have been investigated by grazing incidence U L (sub III) -edge X-ray absorption spectroscopy (GIXAS) and atomic force microscopy (AFM) to determine the composition, structure, and size of surface precipitates from the initial exposure of a surface to aqueous U solution species, and the transformations that occur during nucleation and particle growth of U(IV)- and/or U(VI)-bearing phases on the magnetite surface. In-situ AFM images collected under batch-flow conditions (pH 5 and 10; 100 mM uranyl) indicates that particle formation occurs within an hour of exposure when CO (super 3) was both present and absent. However, when both CO (super 3) and Ca were present, no particles were observed. The particles were approximately 20 nm in diameter and 5 nm in height (at 1 hr), and particle size was independent of the initial solution composition. Within a day, particle aggregates on the order of 400 diameter nm formed, however the aggregate height remained at 5 nm. Maximum surface coverage ( approximately 15%) was reached within 2 days. The RMS surface roughness increased from approximately 0.5 nm to 5 nm over the course of the experiment. Energy dispersive X-ray spectra measured during SEM imaging indicated that these particles were U-bearing precipitates on the magnetite surface. GI-XAS spectra indicated that approximately half of the uranium present on the surface had been reduced. Analyses of the GI-XAS spectra by linear-combination fitting indicated that U speciation consisted of approximately 60% sorbed U(VI) and approximately 40% nanoparticulate UO (super 2) (in the absence of CO (super 3) and Ca), and 100% sorbed U(VI) (in the presence of CO (sub 3) and Ca). JF - Abstracts with Programs - Geological Society of America AU - Singer, David M AU - Chatman, Shawn M AU - Ilton, Eugene S AU - Rosso, Kevin M AU - Banfield, Jill F AU - Waychunas, Glenn A AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 63 EP - 64 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - processes KW - sorption KW - complexes KW - oxidation KW - uranyl ion KW - ferrihydrite KW - iron KW - ferrous iron KW - X-ray data KW - atomic force microscopy data KW - nucleation KW - precipitation KW - metals KW - identification KW - oxides KW - nanoparticles KW - SEM data KW - magnetite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438971929?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Identification+of+reduced-U+nanoprecipitates+on+the+magnetite+%28111%29+surface&rft.au=Singer%2C+David+M%3BChatman%2C+Shawn+M%3BIlton%2C+Eugene+S%3BRosso%2C+Kevin+M%3BBanfield%2C+Jill+F%3BWaychunas%2C+Glenn+A%3BAnonymous&rft.aulast=Singer&rft.aufirst=David&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=63&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-10-03 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - atomic force microscopy data; complexes; ferrihydrite; ferrous iron; identification; iron; magnetite; metals; nanoparticles; nucleation; oxidation; oxides; precipitation; processes; SEM data; sorption; uranyl ion; X-ray data ER - TY - JOUR T1 - Using natural isotopic tracers to unravel the hydrology of the Hanford 300 Area and its impact on uranium mobility at the site AN - 1416687223; 2013-058162 AB - The 300 Area of the Hanford Site was used for producing fuel rods for Hanford nuclear reactors and research. Waste materials from these activities were disposed of in trenches and ponds in the 300 Area. Following detection of a plume of uranium in the groundwater, the ponds were excavated. However, the groundwater uranium plume has persisted. The 300 Area is located on the banks of the Columbia River above its confluence with the Yakima River. The geology consists of Hanford formation flood deposits overlying the sedimentary Ringold Formation, above the Columbia Flood basalts. This results in four potential sources of groundwater in the 300 Area; local infiltration, upwelling from the underlying basalts, the Columbia River, and the Yakima River. It is possible to quantify the contributions of all four of these sources using a combination of delta D, delta (super 18) O and (super 87/86) Sr of the groundwater. The groundwater in the upper part of the Hanford Formation has high (super 87/86) Sr values (0.712 to 0.715) that could be attributed to either the Columbia River or local infiltration. However, local infiltration has higher delta D and delta (super 18) O values (-110 ppm to -120 ppm and -14 ppm to -15 ppm, respectively) than Columbia River water (-125 ppm to -135 ppm and -16.5 ppm to -17.5 ppm, respectively). Based on this difference, the primary source of groundwater in the upper part of the Hanford Formation is derived from local infiltration, with an increasing component of Columbia River water towards the river. The contribution from the Columbia fluctuates through the year, peaking at high river flow during June and July. The Columbia River component in the upper Hanford Aquifer can be quantified based on the degree of isotopic shift. The groundwater from the lower part of the Hanford formation and the Ringold Formation has lower (super 87/86) Sr values (0.708 to 0.710), which are in the same range as groundwater from the basalts and the Yakima River. However, their delta D and delta (super 18) O values (-130 ppm to -140 ppm and -17 ppm to -18 ppm, respectively) are characteristic of the basalt groundwater and much lower than the Yakima River, indicating that the primary source of groundwater is upwelling from the basalts. These results indicate that the upper and lower sections of the Hanford formation are hydraulically isolated from one another. JF - Abstracts with Programs - Geological Society of America AU - Conrad, Mark E AU - Christensen, John N AU - Dresel, P Evan AU - Zachara, John M AU - DePaolo, Donald J AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 41 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - United States KW - upwelling KW - 300 Area KW - oxygen KW - contaminant plumes KW - isotopes KW - stable isotopes KW - radioactive waste KW - ground water KW - Cenozoic KW - tracers KW - water pollution KW - mobility KW - alkaline earth metals KW - Hanford Formation KW - Washington KW - isotope ratios KW - Columbia River KW - Columbia River Basalt Group KW - Yakima River KW - pollution KW - Hanford Site KW - O-18/O-16 KW - Ringold Formation KW - Miocene KW - aquifers KW - Sr-87/Sr-86 KW - Tertiary KW - D/H KW - Neogene KW - metals KW - infiltration KW - hydrogen KW - Pliocene KW - uranium KW - waste disposal KW - actinides KW - strontium KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416687223?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Using+natural+isotopic+tracers+to+unravel+the+hydrology+of+the+Hanford+300+Area+and+its+impact+on+uranium+mobility+at+the+site&rft.au=Conrad%2C+Mark+E%3BChristensen%2C+John+N%3BDresel%2C+P+Evan%3BZachara%2C+John+M%3BDePaolo%2C+Donald+J%3BAnonymous&rft.aulast=Conrad&rft.aufirst=Mark&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-08-02 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - 300 Area; actinides; alkaline earth metals; aquifers; Cenozoic; Columbia River; Columbia River Basalt Group; contaminant plumes; D/H; ground water; Hanford Formation; Hanford Site; hydrogen; infiltration; isotope ratios; isotopes; metals; Miocene; mobility; Neogene; O-18/O-16; oxygen; Pliocene; pollution; radioactive waste; Ringold Formation; Sr-87/Sr-86; stable isotopes; strontium; Tertiary; tracers; United States; upwelling; uranium; Washington; waste disposal; water pollution; Yakima River ER - TY - JOUR T1 - Groundwater quality changes in response to CO (sub 2) leakage from deep geological storage AN - 1416686966; 2013-058184 AB - CO (sub 2) sequestration into deep reservoirs needs to ensure the safety of overlying groundwater resources. Questions exist whether groundwater could become contaminated by leakage and upward migration of CO (sub 2) . The formation of carbonic acid in response to elevated levels of dissolved CO (sub 2) and the resulting decrease in groundwater pH could cause toxic metals to be mobilized through several pathways that include ion exchange, desorption from surface sites, and mineral dissolution. Additional effects could be caused by the transport of co-injected H (sub 2) S and/or organic compounds mobilized by supercritical CO (sub 2) at depth. This paper touches on these various questions and discusses results from reactive transport simulations conducted for both hypothetical scenarios as well as for a CO (sub 2) controlled-release field experiment. Model predictions and experimental results suggest that CO (sub 2) dissolution into shallow groundwater can trigger the dissolution of minerals and sorption/exchange reactions, possibly mobilizing trace elements. The leakage of co-injected H (sub 2) S into groundwater could exacerbate such potential impacts. Preliminary simulations also suggest that any volatile organic species present in CO (sub 2) storage formations could be readily dissolved by supercritical CO (sub 2) and mobilized to be transported into shallower groundwater. JF - Abstracts with Programs - Geological Society of America AU - Birkholzer, Jens T AU - Zheng, Liange AU - Spycher, Nicolas AU - Varadharajan, Charuleka AU - Nico, Peter S AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 45 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - water quality KW - sorption KW - carbon sequestration KW - solutes KW - pollution KW - hydrogen sulfide KW - gas storage KW - solution KW - hydrochemistry KW - ground water KW - carbon dioxide KW - transport KW - movement KW - water resources KW - water pollution KW - geochemistry KW - pH KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1416686966?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Groundwater+quality+changes+in+response+to+CO+%28sub+2%29+leakage+from+deep+geological+storage&rft.au=Birkholzer%2C+Jens+T%3BZheng%2C+Liange%3BSpycher%2C+Nicolas%3BVaradharajan%2C+Charuleka%3BNico%2C+Peter+S%3BAnonymous&rft.aulast=Birkholzer&rft.aufirst=Jens&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2013-01-01 N1 - PubXState - CO N1 - Last updated - 2013-08-02 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; field studies; gas storage; geochemistry; ground water; hydrochemistry; hydrogen sulfide; movement; pH; pollution; solutes; solution; sorption; transport; water pollution; water quality; water resources ER - TY - JOUR T1 - An experimental and analytical study of Ti partitioning in zircon AN - 1026857530; 2012-062024 AB - Zircon (ZrSiO (sub 4) ) is a common accessory phase and robust repository of trace elements (e.g., Y, P, REEs) in igneous rocks. Trace element concentrations within a single zircon can provide compositional information on the sources of the parental melts as well as on extrinsic variables--pressure and temperature (T)--during crystal growth. The concentration of Ti in zircon has been proposed as a temperature proxy in magmatic systems where zircon and a Ti-rich phase such as rutile or ilmenite have co-crystallized (Watson et al., 2006; Ferry & Watson, 2007). This application assumes that Ti concentrations in zircon reflect equilibrium partitioning between zircon and melt. However, NanoSIMS images of Jack Hills (Hofmann et al., 2009) as well as younger zircons indicate that Ti is generally not uniformly distributed but shows oscillatory zoning that spatially correlates with distributions of other trace elements (Y, P, Ce), which in turn track growth features seen in cathodoluminescent banding. These correlated zonations could reflect: oscillating magmatic temperatures if partitioning is T-dependent and an equilibrium process; episodic diffusion-limited enrichment of incompatible trace elements in the crystal-melt boundary layer; and/or kinetically controlled, non-equilibrium crystal-melt partitioning caused by trace element enrichments in the boundary layer melt surrounding fast-growing grains. In order to test these hypotheses, we initiated a series of 1 GPa experiments in which zircons were synthesized from trace-element-free oxide-based mixes and trace-element-bearing natural rock-based powders--all granitic in composition. Overgrowth rims ( approximately 0.5 to 2 mu m) on the seed zircons were analyzed using the NanoSIMS, while the coexisting glass was analyzed using an electron microprobe. Our results to date (1200-1400 degrees C) yield the first experimental partition coefficient for Ti between zircon and melt: D (sub Ti) is approximately 0.02 with little or no T-dependence and no observed differences between the trace-element-free and trace-element-bearing mixes. If these results hold with decreasing T, then the approximately 2 orders of magnitude variations in Ti contents in zircons over Ts of 1400 degrees C (experimental) to approximately 800 degrees C (magmatic) would, to first order, reflect the T-dependence of Ti solubility in silicate melts (e.g., Gaetani et al., 2008). JF - Abstracts with Programs - Geological Society of America AU - Hofmann, Amy E AU - Baker, Michael B AU - Eiler, John M AU - Anonymous Y1 - 2010/11// PY - 2010 DA - November 2010 SP - 667 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 5 SN - 0016-7592, 0016-7592 KW - zircon group KW - silicates KW - experimental studies KW - siliceous composition KW - zircon KW - solubility KW - melts KW - cathodoluminescence KW - temperature KW - nesosilicates KW - partitioning KW - partition coefficients KW - titanium KW - metals KW - magmas KW - orthosilicates KW - rare earths KW - trace elements KW - zoning KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026857530?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=An+experimental+and+analytical+study+of+Ti+partitioning+in+zircon&rft.au=Hofmann%2C+Amy+E%3BBaker%2C+Michael+B%3BEiler%2C+John+M%3BAnonymous&rft.aulast=Hofmann&rft.aufirst=Amy&rft.date=2010-11-01&rft.volume=42&rft.issue=5&rft.spage=667&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2010 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2012-01-01 N1 - PubXState - CO N1 - Last updated - 2012-07-19 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - cathodoluminescence; experimental studies; magmas; melts; metals; nesosilicates; orthosilicates; partition coefficients; partitioning; rare earths; silicates; siliceous composition; solubility; temperature; titanium; trace elements; zircon; zircon group; zoning ER - TY - JOUR T1 - Functional Molecular Ecological Networks AN - 918040569; 13967785 AB - Biodiversity and its responses to environmental changes are central issues in ecology and for society. Almost all microbial biodiversity research focuses on "species" richness and abundance but not on their interactions. Although a network approach is powerful in describing ecological interactions among species, defining the network structure in a microbial community is a great challenge. Also, although the stimulating effects of elevated CO2 (eCO2) on plant growth and primary productivity are well established, its influences on belowground microbial communities, especially microbial interactions, are poorly understood. Here, a random matrix theory (RMT)-based conceptual framework for identifying functional molecular ecological networks was developed with the high-throughput functional gene array hybridization data of soil microbial communities in a long-term grassland FACE (free air, CO2 enrichment) experiment. Our results indicate that RMT is powerful in identifying functional molecular ecological networks in microbial communities. Both functional molecular ecological networks under eCO2 and ambient CO2 (aCO2) possessed the general characteristics of complex systems such as scale free, small world, modular, and hierarchical. However, the topological structures of the functional molecular ecological networks are distinctly different between eCO2 and aCO2, at the levels of the entire communities, individual functional gene categories/groups, and functional genes/sequences, suggesting that eCO2 dramatically altered the network interactions among different microbial functional genes/populations. Such a shift in network structure is also significantly correlated with soil geochemical variables. In short, elucidating network interactions in microbial communities and their responses to environmental changes is fundamentally important for research in microbial ecology, systems microbiology, and global change. IMPORTANCE Microorganisms are the foundation of the Earth's biosphere and play integral and unique roles in various ecosystem processes and functions. In an ecosystem, various microorganisms interact with each other to form complicated networks. Elucidating network interactions and their responses to environmental changes is difficult due to the lack of appropriate experimental data and an appropriate theoretical framework. This study provides a conceptual framework to construct interaction networks in microbial communities based on high-throughput functional gene array hybridization data. It also first documents that elevated carbon dioxide in the atmosphere dramatically alters the network interactions in soil microbial communities, which could have important implications in assessing the responses of ecosystems to climate change. The conceptual framework developed allows microbiologists to address research questions unapproachable previously by focusing on network interactions beyond the listing of, e.g., the number and abundance of species. Thus, this study could represent transformative research and a paradigm shift in microbial ecology. IMPORTANCE: Microorganisms are the foundation of the Earth's biosphere and play integral and unique roles in various ecosystem processes and functions. In an ecosystem, various microorganisms interact with each other to form complicated networks. Elucidating network interactions and their responses to environmental changes is difficult due to the lack of appropriate experimental data and an appropriate theoretical framework. This study provides a conceptual framework to construct interaction networks in microbial communities based on high-throughput functional gene array hybridization data. It also first documents that elevated carbon dioxide in the atmosphere dramatically alters the network interactions in soil microbial communities, which could have important implications in assessing the responses of ecosystems to climate change. The conceptual framework developed allows microbiologists to address research questions unapproachable previously by focusing on network interactions beyond the listing of, e.g., the number and abundance of species. Thus, this study could represent transformative research and a paradigm shift in microbial ecology. JF - mBio AU - Zhou, Jizhong AU - Deng, Ye AU - Luo, Feng AU - He, Zhili AU - Tu, Qichao AU - Zhi, Xiaoyang AD - Institute for Environmental Genomics and Department of Botany and Microbiology, University of Oklahoma, Norman, Oklahoma, USA Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA Department of Environmental Science and Engineering, Tsinghua University, Beijing, People's Republic of China School of Computing, Clemson University, Clemson, South Carolina, USA Glomics Inc Y1 - 2010/10/29/ PY - 2010 DA - 2010 Oct 29 SP - e00169 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 1 IS - 4 SN - 2150-7511, 2150-7511 KW - Ecology Abstracts; Environment Abstracts KW - Climatic changes KW - Abundance KW - Biodiversity KW - Biosphere KW - Atmosphere KW - Soil microorganisms KW - Ecology KW - Soil KW - microbiologists KW - Species richness KW - Data processing KW - Microbial activity KW - Grasslands KW - Environmental changes KW - environmental changes KW - Microorganisms KW - Plant communities KW - Carbon dioxide KW - abundance KW - ENA 13:Population Planning & Control KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918040569?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=mBio&rft.atitle=Functional+Molecular+Ecological+Networks&rft.au=Zhou%2C+Jizhong%3BDeng%2C+Ye%3BLuo%2C+Feng%3BHe%2C+Zhili%3BTu%2C+Qichao%3BZhi%2C+Xiaoyang&rft.aulast=Zhou&rft.aufirst=Jizhong&rft.date=2010-10-29&rft.volume=1&rft.issue=4&rft.spage=e00169&rft.isbn=&rft.btitle=&rft.title=mBio&rft.issn=21507511&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Data processing; Abundance; Climatic changes; Biodiversity; Biosphere; Atmosphere; Soil microorganisms; Soil; Grasslands; Environmental changes; Plant communities; Microorganisms; Carbon dioxide; Species richness; Ecology; microbiologists; environmental changes; Microbial activity; abundance ER - TY - JOUR T1 - Dispersal of fungal spores on a cooperatively generated wind AN - 815538443; 13843896 AB - Because of their microscopic size, the forcibly ejected spores of ascomycete fungi are quickly brought to rest by drag. Nonetheless some apothecial species, including the pathogen Sclerotinia sclerotiorum, disperse with astonishing rapidity between ephemeral habitats. Here we show that by synchronizing the ejection of thousands of spores, these fungi create a flow of air that carries spores through the nearly still air surrounding the apothecium, around intervening obstacles, and to atmospheric currents and new infection sites. High-speed imaging shows that synchronization is self-organized and likely triggered by mechanical stresses. Although many spores are sacrificed to produce the favorable airflow, creating the potential for conflict among spores, the geometry of the spore jet physically targets benefits of the airflow to spores that cooperate maximally in its production. The ability to manipulate a local fluid environment to enhance spore dispersal is a previously overlooked feature of the biology of fungal pathogens, and almost certainly shapes the virulence of species including S. sclerotiorum. Synchronous spore ejection may also provide a model for the evolution of stable, self-organized behaviors. JF - Proceedings of the National Academy of Sciences, USA AU - Roper, Marcus AU - Seminara, Agnese AU - Bandi, M M AU - Cobb, Ann AU - Dillard, Helene R AU - Pringle, Anne AD - Department of Mathematics and Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720 Y1 - 2010/10/12/ PY - 2010 DA - 2010 Oct 12 SP - 17474 EP - 17479 PB - National Academy of Sciences, 2101 Constitution Ave. Washington DC 20418 USA VL - 107 IS - 41 SN - 0027-8424, 0027-8424 KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Toxicology Abstracts KW - Dispersal KW - Evolution KW - Fungi KW - Habitat KW - Infection KW - Models KW - Pathogens KW - Spores KW - Stress KW - Synchronization KW - Virulence KW - Wind KW - imaging KW - Ascomycetes KW - Sclerotinia sclerotiorum KW - X 24370:Natural Toxins KW - K 03450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/815538443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.atitle=Dispersal+of+fungal+spores+on+a+cooperatively+generated+wind&rft.au=Roper%2C+Marcus%3BSeminara%2C+Agnese%3BBandi%2C+M+M%3BCobb%2C+Ann%3BDillard%2C+Helene+R%3BPringle%2C+Anne&rft.aulast=Roper&rft.aufirst=Marcus&rft.date=2010-10-12&rft.volume=107&rft.issue=41&rft.spage=17474&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences%2C+USA&rft.issn=00278424&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-11-01 N1 - Last updated - 2012-06-18 N1 - SubjectsTermNotLitGenreText - Fungi; Synchronization; Stress; Pathogens; Habitat; Infection; imaging; Models; Virulence; Dispersal; Spores; Evolution; Wind; Ascomycetes; Sclerotinia sclerotiorum ER - TY - JOUR T1 - Infrared Spectromicroscopy: Probing Live Cellular Responses to Environmental Changes AN - 864417450; 14383802 AB - The recent advent of gene sequencing and high-throughput functional genomic approaches has led to a paradigm shift in studying microbial responses to environmental changes--from a reductionist approach of studying the structure and function of individual cellular parts to global investigations of increasingly complex systems of molecules and their interactions. While gene sequencing and high-throughput functional genomic approaches have already allowed researchers to focus on a genome-based understanding of both the individual cellular parts and the biochemical networks, we now need new capabilities that will enable investigation of biochemical processes as a whole in living cells. Today, much of our understanding has come from biochemistry experiments that are averaged over large populations of cells. These approaches have clarified many detailed mechanisms, but they are not sufficient to reveal the differences that exist even within a genetically homogeneous population. For example, recent single-molecule imaging studies of living cells have revealed that the cellular reactions that occur in complex networks of regulatory and metabolic processes during adaptive responses may exhibit both spatial and temporal separation within a population or a community. This heterogeneity, which can be of ecological significance, clearly cannot be evaluated in experiments that are averaged over large populations. The challenge is to identify those cells of ecological importance within a large population and track their biochemical reactions in situ in real time. In this article, we first describe how we can help to meet this challenge by combining a classical infrared approach (used to study cells and living tissues for over six decades) with a brilliant synchrotron and an appropriate microfluidic platform, followed by three application examples. JF - Synchrotron Radiation News AU - Holman, H-YN AU - Hao, Z AU - Martin, M C AU - Bechtel, HA AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2010/10// PY - 2010 DA - Oct 2010 SP - 12 EP - 19 PB - Taylor & Francis Group Ltd., 2 Park Square Milton Park, Abingdon Oxford OX14 4RN UK VL - 23 IS - 5 SN - 0894-0886, 0894-0886 KW - Environment Abstracts KW - Biochemistry KW - Environmental changes KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864417450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Synchrotron+Radiation+News&rft.atitle=Infrared+Spectromicroscopy%3A+Probing+Live+Cellular+Responses+to+Environmental+Changes&rft.au=Holman%2C+H-YN%3BHao%2C+Z%3BMartin%2C+M+C%3BBechtel%2C+HA&rft.aulast=Holman&rft.aufirst=H-YN&rft.date=2010-10-01&rft.volume=23&rft.issue=5&rft.spage=12&rft.isbn=&rft.btitle=&rft.title=Synchrotron+Radiation+News&rft.issn=08940886&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-02-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Biochemistry; Environmental changes ER - TY - JOUR T1 - Calcium promotes cadmium elimination as vaterite grains by tobacco trichomes AN - 861986046; 2011-034067 AB - In tobacco plants, elimination of Zn and Cd via the production of Ca-containing grains at the top of leaf hairs, called trichomes, is a potent detoxification mechanism. This study examines how Cd is incorporated in these biominerals, and how calcium growth supplement modifies their nature. Scanning electron microscopy coupled with energy dispersive X-ray microanalysis (SEM-EDX), microfocused X-ray diffraction (mu -XRD), and microfocused X-ray absorption near edge structure (mu -XANES) spectroscopy were used to image the morphology of the grains, identify the crystallized mineral phases, and speciate Cd, respectively. The mineralogy of the grains and chemical form of Cd varied with the amount of Ca. When tobacco plants were grown in a nutrient solution containing 25 mu M Cd and low Ca supplement (Ca/Cd=11 mol ratio), most of the grains were oblong-shaped and low-Cd-substituted calcite. When exposed to the same amount of Cd and high Ca supplement (Ca/Cd= 131 mol ratio), grains were more abundant and diverse in compositions, and in total more Cd was eliminated. Most grains in the high Ca/Cd experiment were round-shaped and composed predominantly of Cd-substituted vaterite, a usually metastable calcium carbonate polymorph, and subordinate calcite. Calcium oxalate and a Ca amorphous phase were detected occasionally in the two treatments, but were devoid of Cd. The biomineralization of cadmium and implications of results for Cd exposure of smokers and phytoremediation are discussed. JF - Geochimica et Cosmochimica Acta AU - Isaure, Marie-Pierre AU - Sarret, Geraldine AU - Harada, Emiko AU - Choi, Yong-Eui AU - Marcus, Matthew A AU - Fakra, Sirine C AU - Geoffroy, Nicolas AU - Pairis, Sebastien AU - Susini, Jean AU - Clemens, Stephan AU - Manceau, Alain Y1 - 2010/10// PY - 2010 DA - October 2010 SP - 5817 EP - 5834 PB - Elsevier, New York, NY VL - 74 IS - 20 SN - 0016-7037, 0016-7037 KW - calcium KW - X-ray diffraction data KW - vegetation KW - remediation KW - XANES spectra KW - environmental management KW - polymorphism KW - vaterite KW - cadmium KW - spectra KW - chemical composition KW - geochemistry KW - chemical ratios KW - biomineralization KW - alkaline earth metals KW - biochemistry KW - pollution KW - bioremediation KW - X-ray spectra KW - metals KW - crystal chemistry KW - carbonates KW - SEM data KW - public health KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861986046?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Calcium+promotes+cadmium+elimination+as+vaterite+grains+by+tobacco+trichomes&rft.au=Isaure%2C+Marie-Pierre%3BSarret%2C+Geraldine%3BHarada%2C+Emiko%3BChoi%2C+Yong-Eui%3BMarcus%2C+Matthew+A%3BFakra%2C+Sirine+C%3BGeoffroy%2C+Nicolas%3BPairis%2C+Sebastien%3BSusini%2C+Jean%3BClemens%2C+Stephan%3BManceau%2C+Alain&rft.aulast=Isaure&rft.aufirst=Marie-Pierre&rft.date=2010-10-01&rft.volume=74&rft.issue=20&rft.spage=5817&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2010.07.011 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 105 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; biochemistry; biomineralization; bioremediation; cadmium; calcium; carbonates; chemical composition; chemical ratios; crystal chemistry; environmental management; geochemistry; metals; pollution; polymorphism; public health; remediation; SEM data; spectra; vaterite; vegetation; X-ray diffraction data; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2010.07.011 ER - TY - JOUR T1 - Phytosequestration: Carbon Biosequestration by Plants and the Prospects of Genetic Engineering AN - 860382234; 14136967 AB - Photosynthetic assimilation of atmospheric carbon dioxide by land plants offers the underpinnings for terrestrial carbon (C) sequestration. A proportion of the C captured in plant biomass is partitioned to roots, where it enters the pools of soil organic C and soil inorganic C and can be sequestered for millennia. Bioenergy crops serve the dual role of providing biofuel that offsets fossil-fuel greenhouse gas (GHG) emissions and sequestering C in the soil through extensive root systems. Carbon captured in plant biomass can also contribute to C sequestration through the deliberate addition of biochar to soil, wood burial, or the use of durable plant products. Increasing our understanding of plant, microbial, and soil biology, and harnessing the benefits of traditional genetics and genetic engineering, will help us fully realize the GHG mitigation potential of phytosequestration. JF - Bioscience AU - Jansson, Christer AU - Wullschleger, Stan D AU - Kalluri, Udaya C AU - Tuskan, Gerald A AD - Christer Jansson joined Lawrence Berkeley National Laboratory as a senior staff scientist in the Earth Sciences Division in 2008. Y1 - 2010/10// PY - 2010 DA - Oct 2010 SP - 685 EP - 696 PB - American Institute of Biological Sciences, 1444 Eye St. N.W. Washington, DC 20005 USA VL - 60 IS - 9 SN - 0006-3568, 0006-3568 KW - Biotechnology and Bioengineering Abstracts; Genetics Abstracts KW - Biofuels KW - Carbon KW - W 30910:Imaging KW - G 07800:Plants and Algae UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860382234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioscience&rft.atitle=Phytosequestration%3A+Carbon+Biosequestration+by+Plants+and+the+Prospects+of+Genetic+Engineering&rft.au=Jansson%2C+Christer%3BWullschleger%2C+Stan+D%3BKalluri%2C+Udaya+C%3BTuskan%2C+Gerald+A&rft.aulast=Jansson&rft.aufirst=Christer&rft.date=2010-10-01&rft.volume=60&rft.issue=9&rft.spage=685&rft.isbn=&rft.btitle=&rft.title=Bioscience&rft.issn=00063568&rft_id=info:doi/10.1525%2Fbio.2010.60.9.6 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Number of references - 1 N1 - Last updated - 2014-03-24 N1 - SubjectsTermNotLitGenreText - Carbon DO - http://dx.doi.org/10.1525/bio.2010.60.9.6 ER - TY - JOUR T1 - Engineering supported membranes for cell biology AN - 831154160; 13838561 AB - Cell membranes exhibit multiple layers of complexity, ranging from their specific molecular content to their emergent mechanical properties and dynamic spatial organization. Both compositional and geometrical organizations of membrane components are known to play important roles in life processes, including signal transduction. Supported membranes, comprised of a bilayer assembly of phospholipids on the solid substrate, have been productively served as model systems to study wide range problems in cell biology. Because lateral mobility of membrane components is readily preserved, supported lipid membranes with signaling molecules can be utilized to effectively trigger various intercellular reactions. The spatial organization and mechanical deformation of supported membranes can also be manipulated by patterning underlying substrates with modern micro- and nano-fabrication techniques. This article focuses on various applications and methods to spatially patterned biomembranes by means of curvature modulations and spatial reorganizations, and utilizing them to interface with live cells. The integration of biological components into synthetic devices provides a unique approach to investigate molecular mechanisms in cell biology. JF - Medical & Biological Engineering & Computing AU - Yu, Cheng-han AU - Groves, Jay T AD - Research Centre of Excellence in Mechanobiology, National University of Singapore, Singapore, 117543, Singapore, JTGroves@lbl.gov Y1 - 2010/10// PY - 2010 DA - Oct 2010 SP - 955 EP - 963 PB - Institution of Electrical Engineers, Savoy Pl. London WC2R 0BL UK VL - 48 IS - 10 SN - 0140-0118, 0140-0118 KW - Biotechnology and Bioengineering Abstracts KW - Integration KW - Molecular modelling KW - Cell membranes KW - Lipid membranes KW - Membrane fluidity KW - Signal transduction KW - Mechanical properties KW - Phospholipids KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/831154160?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Medical+%26+Biological+Engineering+%26+Computing&rft.atitle=Engineering+supported+membranes+for+cell+biology&rft.au=Yu%2C+Cheng-han%3BGroves%2C+Jay+T&rft.aulast=Yu&rft.aufirst=Cheng-han&rft.date=2010-10-01&rft.volume=48&rft.issue=10&rft.spage=955&rft.isbn=&rft.btitle=&rft.title=Medical+%26+Biological+Engineering+%26+Computing&rft.issn=01400118&rft_id=info:doi/10.1007%2Fs11517-010-0634-x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Molecular modelling; Integration; Cell membranes; Lipid membranes; Membrane fluidity; Phospholipids; Mechanical properties; Signal transduction DO - http://dx.doi.org/10.1007/s11517-010-0634-x ER - TY - JOUR T1 - Cellodextrin Transport in Yeast for Improved Biofuel Production AN - 817604404; 13899376 AB - Fungal degradation of plant biomass may provide insights for improving cellulosic biofuel production. We show that the model cellulolytic fungus Neurospora crassa relies on a high-affinity cellodextrin transport system for rapid growth on cellulose. Reconstitution of the N. crassa cellodextrin transport system in Saccharomyces cerevisiae promotes efficient growth of this yeast on cellodextrins. In simultaneous saccharification and fermentation experiments, the engineered yeast strains more rapidly convert cellulose to ethanol when compared with yeast lacking this system. JF - Science (Washington) AU - Galazka, Jonathan M AU - Tian, Chaoguang AU - Beeson, William T AU - Martinez, Bruno AU - Glass, NLouise AU - Cate, Jamie HD AD - Department of Molecular and Cell Biology, University of California at Berkeley, Berkeley, CA 94720, USA, jcate@lbl.gov Y1 - 2010/10// PY - 2010 DA - Oct 2010 SP - 84 EP - 86 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA VL - 330 IS - 6000 SN - 0036-8075, 0036-8075 KW - Microbiology Abstracts C: Algology, Mycology & Protozoology; Sustainability Science Abstracts KW - Yeasts KW - Neurospora crassa KW - Fuel technology KW - Biodegradation KW - Degradation KW - Fermentation KW - Cellulose KW - biofuels KW - Biomass KW - Saccharomyces cerevisiae KW - Genetically engineered microorganisms KW - plant biomass KW - Biofuels KW - Ethanol KW - M3 1010:Issues in Sustainable Development KW - K 03320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/817604404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Cellodextrin+Transport+in+Yeast+for+Improved+Biofuel+Production&rft.au=Galazka%2C+Jonathan+M%3BTian%2C+Chaoguang%3BBeeson%2C+William+T%3BMartinez%2C+Bruno%3BGlass%2C+NLouise%3BCate%2C+Jamie+HD&rft.aulast=Galazka&rft.aufirst=Jonathan&rft.date=2010-10-01&rft.volume=330&rft.issue=6000&rft.spage=84&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1192838 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-12-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Biodegradation; Genetically engineered microorganisms; Fermentation; Cellulose; Biomass; Biofuels; Ethanol; Yeasts; Fuel technology; Degradation; biofuels; plant biomass; Neurospora crassa; Saccharomyces cerevisiae DO - http://dx.doi.org/10.1126/science.1192838 ER - TY - JOUR T1 - Validation of two ribosomal RNA removal methods for microbial metatranscriptomics AN - 762271056; 13790917 AB - The predominance of rRNAs in the transcriptome is a major technical challenge in sequence-based analysis of cDNAs from microbial isolates and communities. Several approaches have been applied to deplete rRNAs from (meta)transcriptomes, but no systematic investigation of potential biases introduced by any of these approaches has been reported. Here we validated the effectiveness and fidelity of the two most commonly used approaches, subtractive hybridization and exonuclease digestion, as well as combinations of these treatments, on two synthetic five-microorganism metatranscriptomes using massively parallel sequencing. We found that the effectiveness of rRNA removal was a function of community composition and RNA integrity for these treatments. Subtractive hybridization alone introduced the least bias in relative transcript abundance, whereas exonuclease and in particular combined treatments greatly compromised mRNA abundance fidelity. Illumina sequencing itself also can compromise quantitative data analysis by introducing a G+C bias between runs. JF - Nature Methods AU - He, Shaomei AU - Wurtzel, Omri AU - Singh, Kanwar AU - Froula, Jeff L AU - Yilmaz, Suzan AU - Tringe, Susannah G AU - Wang, Zhong AU - Chen, Feng AU - Lindquist, Erika A AU - Sorek, Rotem AU - Hugenholtz, Philip AD - [1] Department of Energy Joint Genome Institute, Walnut Creek, California, USA. [2] Energy Biosciences Institute, University of California-Berkeley, Berkeley, California, USA. [3] Australian Centre for Ecogenomics, School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Australia. Y1 - 2010/10// PY - 2010 DA - Oct 2010 SP - 807 EP - 812 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 7 IS - 10 SN - 1548-7091, 1548-7091 KW - Biochemistry Abstracts 2: Nucleic Acids; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Digestion KW - Gene expression KW - rRNA KW - Fidelity KW - Community composition KW - Data processing KW - Abundance KW - exonuclease KW - Transcription KW - A 01490:Miscellaneous KW - N 14810:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/762271056?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Methods&rft.atitle=Validation+of+two+ribosomal+RNA+removal+methods+for+microbial+metatranscriptomics&rft.au=He%2C+Shaomei%3BWurtzel%2C+Omri%3BSingh%2C+Kanwar%3BFroula%2C+Jeff+L%3BYilmaz%2C+Suzan%3BTringe%2C+Susannah+G%3BWang%2C+Zhong%3BChen%2C+Feng%3BLindquist%2C+Erika+A%3BSorek%2C+Rotem%3BHugenholtz%2C+Philip&rft.aulast=He&rft.aufirst=Shaomei&rft.date=2010-10-01&rft.volume=7&rft.issue=10&rft.spage=807&rft.isbn=&rft.btitle=&rft.title=Nature+Methods&rft.issn=15487091&rft_id=info:doi/10.1038%2Fnmeth.1507 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-11-01 N1 - Last updated - 2013-10-04 N1 - SubjectsTermNotLitGenreText - Gene expression; Digestion; rRNA; Community composition; Fidelity; Data processing; Abundance; Transcription; exonuclease DO - http://dx.doi.org/10.1038/nmeth.1507 ER - TY - JOUR T1 - Physiological and transcriptional studies of Cr(VI) reduction under aerobic and denitrifying conditions by an aquifer-derived pseudomonad. AN - 755968708; 20822129 AB - Cr(VI) is a widespread groundwater contaminant that is a potent toxin, mutagen, and carcinogen. In situ reductive immobilization is a favored approach for Cr(VI) bioremediation, and Cr(VI) reduction has been reported in a variety of aerobic, facultative, and anaerobic bacteria, including a number of pseudomonads. However, studies comparing Cr(VI) reduction under aerobic and denitrifying conditions in the same organism are not available. We have conducted studies with strain RCH2, a bacterium similar to Pseudomonas stutzeri that we isolated from a Cr-contaminated aquifer. Cell suspension studies with lactate demonstrated that Cr(VI) reduction could occur under either denitrifying or aerobic conditions (at comparable specific rates) and that reduction was at least 20-fold more rapid when the terminal electron acceptor (i.e., nitrate or O(2)) was present. Our results suggest that Cr(VI) reduction by strain RCH2 under either aerobic or denitrifying conditions is primarily cometabolic in the sense that the physiological electron acceptor (oxygen or nitrate) appears to be required. Under both aerobic and denitrifying conditions, the gene(s) associated with chromate reduction are not inducible by Cr. Continuous culture (chemostat) studies showed strong correlations (r(2) values >0.93) between nitrate reduction rate and the transcript copy number of either nirS (cytochrome cd(1) nitrite reductase) or narG (nitrate reductase α subunit). As our studies indicate that anaerobic Cr(VI) reduction by this pseudomonad requires active denitrification and that denitrification and chromate reduction rates are highly correlated (r(2) > 0.99), monitoring expression of such denitrification genes in biostimulated aquifers could provide valuable proxy information for in situ chromate reduction by similar bacteria even if the specific genes involved in chromate reduction have not been identified. We also report incomplete removal of reduced Cr from solution and on artifacts in the widely used diphenylcarbazide assay for Cr(VI), most notably, its complete inactivation in the presence of millimolar nitrite. JF - Environmental science & technology AU - Han, Ruyang AU - Geller, Jil T AU - Yang, Li AU - Brodie, Eoin L AU - Chakraborty, Romy AU - Larsen, Joern T AU - Beller, Harry R AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. Y1 - 2010/10/01/ PY - 2010 DA - 2010 Oct 01 SP - 7491 EP - 7497 VL - 44 IS - 19 KW - Nitrites KW - 0 KW - Chromium KW - 0R0008Q3JB KW - Index Medicus KW - Oxidation-Reduction KW - Biodegradation, Environmental KW - Aerobiosis KW - Transcription, Genetic -- drug effects KW - Nitrites -- metabolism KW - Chromium -- chemistry KW - Chromium -- metabolism KW - Chromium -- toxicity KW - Pseudomonas -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/755968708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Physiological+and+transcriptional+studies+of+Cr%28VI%29+reduction+under+aerobic+and+denitrifying+conditions+by+an+aquifer-derived+pseudomonad.&rft.au=Han%2C+Ruyang%3BGeller%2C+Jil+T%3BYang%2C+Li%3BBrodie%2C+Eoin+L%3BChakraborty%2C+Romy%3BLarsen%2C+Joern+T%3BBeller%2C+Harry+R&rft.aulast=Han&rft.aufirst=Ruyang&rft.date=2010-10-01&rft.volume=44&rft.issue=19&rft.spage=7491&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=1520-5851&rft_id=info:doi/10.1021%2Fes101152r LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2011-01-06 N1 - Date created - 2010-09-29 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1021/es101152r ER - TY - JOUR T1 - Deep-Sea Oil Plume Enriches Indigenous Oil-Degrading Bacteria AN - 1777117159; 13899345 AB - The biological effects and expected fate of the vast amount of oil in the Gulf of Mexico from the Deepwater Horizon blowout are unknown owing to the depth and magnitude of this event. Here, we report that the dispersed hydrocarbon plume stimulated deep-sea indigenous {gamma}-Proteobacteria that are closely related to known petroleum degraders. Hydrocarbon-degrading genes coincided with the concentration of various oil contaminants. Changes in hydrocarbon composition with distance from the source and incubation experiments with environmental isolates demonstrated faster-than-expected hydrocarbon biodegradation rates at 5C. Based on these results, the potential exists for intrinsic bioremediation of the oil plume in the deep-water column without substantial oxygen drawdown. JF - Science (Washington) AU - Hazen, Terry C AU - Dubinsky, Eric A AU - DeSantis, Todd Z AU - Andersen, Gary L AU - Piceno, Yvette M AU - Singh, Navjeet AU - Jansson, Janet K AU - Probst, Alexander AU - Borglin, Sharon E AU - Fortney, Julian L AU - Stringfellow, William T AU - Bill, Markus AU - Conrad, Mark E AU - Tom, Lauren M AU - Chavarria, Krystle L AU - Alusi, Thana R AU - Lamendella, Regina AU - Joyner, Dominique C AU - Spier, Chelsea AU - Baelum, Jacob AU - Auer, Manfred AU - Zemla, Marcin L AU - Chakraborty, Romy AU - Sonnenthal, Eric L AU - D'haeseleer, Patrik AU - Holman, Hoi-Ying N AU - Osman, Shariff AU - Lu, Zhenmei AU - Van Nostrand, Joy D AU - Deng, Ye AU - Zhou, Jizhong AU - Mason, Olivia U AD - MS 70A-3317, One Cyclotron Road, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA tchazen@lbl.gov tchazen@lbl.gov tchazen@lbl.gov tchazen@lbl.gov tchazen@lbl.gov tchazen@lbl.gov tchazen@lbl.gov tchazen@lbl.gov tchazen@lbl.gov tchazen@lbl.gov Y1 - 2010/10// PY - 2010 DA - October 2010 SP - 204 EP - 208 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA VL - 330 IS - 6001 SN - 0036-8075, 0036-8075 KW - Solid State and Superconductivity Abstracts (SO); Environmental Engineering Abstracts (EN) KW - Bacteria KW - Genes KW - Bioremediation KW - Hydrocarbons KW - Concentration (composition) KW - Contaminants KW - Plumes KW - Gulf of Mexico UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777117159?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Deep-Sea+Oil+Plume+Enriches+Indigenous+Oil-Degrading+Bacteria&rft.au=Hazen%2C+Terry+C%3BDubinsky%2C+Eric+A%3BDeSantis%2C+Todd+Z%3BAndersen%2C+Gary+L%3BPiceno%2C+Yvette+M%3BSingh%2C+Navjeet%3BJansson%2C+Janet+K%3BProbst%2C+Alexander%3BBorglin%2C+Sharon+E%3BFortney%2C+Julian+L%3BStringfellow%2C+William+T%3BBill%2C+Markus%3BConrad%2C+Mark+E%3BTom%2C+Lauren+M%3BChavarria%2C+Krystle+L%3BAlusi%2C+Thana+R%3BLamendella%2C+Regina%3BJoyner%2C+Dominique+C%3BSpier%2C+Chelsea%3BBaelum%2C+Jacob%3BAuer%2C+Manfred%3BZemla%2C+Marcin+L%3BChakraborty%2C+Romy%3BSonnenthal%2C+Eric+L%3BD%27haeseleer%2C+Patrik%3BHolman%2C+Hoi-Ying+N%3BOsman%2C+Shariff%3BLu%2C+Zhenmei%3BVan+Nostrand%2C+Joy+D%3BDeng%2C+Ye%3BZhou%2C+Jizhong%3BMason%2C+Olivia+U&rft.aulast=Hazen&rft.aufirst=Terry&rft.date=2010-10-01&rft.volume=330&rft.issue=6001&rft.spage=204&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1195979 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-01 N1 - Last updated - 2016-06-30 DO - http://dx.doi.org/10.1126/science.1195979 ER - TY - JOUR T1 - Heat capacity, entropy, and magnetic properties of jarosite-group compounds AN - 1502292520; 2014-013323 AB - Jarosite phases are common minerals in acidic, sulfate-rich environments. Here, we report heat capacities (C (sub p) ) and standard entropies (S degrees ) for a number of jarosite samples. Most samples are close to the nominal composition AFe (sub 3) (SO (sub 4) ) (sub 2) (OH) (sub 6) , where A = K, Na, Rb, and NH (sub 4) . One of the samples has a significant number of defects on the Fe sites and is called the defect jarosite; others are referred to as A-jarosite. The samples, their compositions, and the entropies at T = 298.15 K are: (Table) Sample, Chemical composition, S degrees /(J mol (super -1) K (super -1) ; K-jarosite, K (sub 0.92) (H (sub 3) O) (sub 0.08) Fe (sub 2.97) (SO (sub 4) ) (sub 2) (OH) (sub 5.90) (H (sub 2) O) (sub 0.10) , 427.4 + or - 0.7; Na-jarosite, Na (sub 0.95) (H (sub 3) O) (sub 0.05) Fe (sub 3.00) (SO (sub 4) ) (sub 2) (OH) (sub 6.00) , 436.4 + or - 4.4; Rb-jarosite, RbFe (sub 2.98) (SO (sub 4) ) (sub 2) (OH) (sub 5.95) (H (sub 2) O) (sub 0.05) , 411.5 + or - 4.1; NH (sub 4) -jarosite, (NH (sub 4) ) (sub 0.87) (H (sub 3) O) (sub 0.13) Fe (sub 3.00) (SO (sub 4) ) (sub 2) (OH) (sub 6.00) , 447.2 + or - 4.5; Defect jarosite, K (sub 0.94) (H (sub 3) O) (sub 0.06) Fe (sub 2.34) (SO (sub 4) ) (sub 2) (OH) (sub 4.01) (H (sub 2) O) (sub 1.99) , 412.7 + or - 4.1; There are additional configurational entropies of 13.14 and 8.23 J mol (super -1) K (super -1) in defect and NH (sub 4) -jarosite, respectively. A detailed analysis of the synchrotron X-ray diffraction patterns showed a large anisotropic peak broadening for defect and NH (sub 4) -jarosite. The fits to the low-temperature (approx. <12 K) C (sub p) data showed that our samples can be divided into two groups. The first group is populated by the K-, Na-, Rb-, and NH (sub 4) -jarosite samples, antiferromagnetic at low temperatures. The second group contains the H (sub 3) O-jarosite (studied previously) and the defect jarosite. H (sub 3) O- and defect jarosite are spin glasses and their low-T C (sub p) was fit with the expression C (sub p) = gamma T + Sigma B (sub j) T (sub j) , where j = (3, 5, 7, 9). The linear term is typical for spin glasses and the sum represents the lattice contribution to C (sub p) . Surprisingly, the C (sub p) of the K-, Na-, Rb-, and NH (sub 4) -jarosite samples, which are usually considered to be antiferromagnetic at low temperatures, also contains a large linear term. This finding suggests that even these phases do not order completely, but have a partial spin-glass character below their Neel transition temperature. Copyright 2010 Springer-Verlag JF - Physics and Chemistry of Minerals AU - Majzlan, Juraj AU - Glasnak, Peter AU - Fisher, Robert A AU - White, Mary Anne AU - Johnson, Michel B AU - Woodfield, Brian AU - Boerio-Goates, Juliana Y1 - 2010/10// PY - 2010 DA - October 2010 SP - 635 EP - 651 PB - Springer-Verlag, Berlin - New York VL - 37 IS - 9 SN - 0342-1791, 0342-1791 KW - cell dimensions KW - X-ray diffraction data KW - sulfates KW - entropy KW - heat capacity KW - bonding KW - powder method KW - magnetic properties KW - jarosite KW - enthalpy KW - formula KW - calorimetry KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1502292520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Heat+capacity%2C+entropy%2C+and+magnetic+properties+of+jarosite-group+compounds&rft.au=Majzlan%2C+Juraj%3BGlasnak%2C+Peter%3BFisher%2C+Robert+A%3BWhite%2C+Mary+Anne%3BJohnson%2C+Michel+B%3BWoodfield%2C+Brian%3BBoerio-Goates%2C+Juliana&rft.aulast=Majzlan&rft.aufirst=Juraj&rft.date=2010-10-01&rft.volume=37&rft.issue=9&rft.spage=635&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-010-0363-6 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Date revised - 2014-01-01 N1 - Number of references - 44 N1 - Last updated - 2014-02-27 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - bonding; calorimetry; cell dimensions; enthalpy; entropy; formula; heat capacity; jarosite; magnetic properties; powder method; sulfates; X-ray diffraction data DO - http://dx.doi.org/10.1007/s00269-010-0363-6 ER - TY - JOUR T1 - Fixation-free fluorescence in situ hybridization for targeted enrichment of microbial populations AN - 1093473616; 16969319 AB - We modified the standard ribosomal RNA-targeted fluorescence in situ hybridization (FISH) protocol by removing the fixation steps to allow recovery of unmodified nucleic acids. Using this method, hybridized cells could be visualized in two bioreactor sludges and termite hindgut samples by epifluorescence microscopy. We then targeted one bacterial and one archaeal population in the sludge samples with group-specific oligonucleotide probes using in-solution fixation-free FISH and sorted hybridized populations using fluorescence-activated cell sorting (FACS). We could show that sorted populations were highly enriched for the target organisms based on 16S rRNA gene sequencing, thus confirming probe specificity using the modified FISH protocol. This approach should facilitate subsequent genomic sequencing and analysis of targeted populations as DNA is not compromised by crosslinking during fixation. JF - ISME Journal AU - Yilmaz, Suzan AU - Haroon, Mohamed F AU - Rabkin, Brian A AU - Tyson, Gene W AU - Hugenholtz, Philip AD - Microbial Ecology Program, DOE Joint Genome Institute, Walnut Creek, CA, USA Y1 - 2010/10// PY - 2010 DA - Oct 2010 SP - 1352 EP - 1356 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 4 IS - 10 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Bioreactors KW - DNA probes KW - DNA sequencing KW - Flow cytometry KW - Fluorescence in situ hybridization KW - Hindgut KW - Microscopy KW - Oligonucleotides KW - Sludges KW - genomics KW - nucleic acids KW - rRNA 16S KW - Isoptera KW - A 01450:Environmental Pollution & Waste Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1093473616?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=Fixation-free+fluorescence+in+situ+hybridization+for+targeted+enrichment+of+microbial+populations&rft.au=Yilmaz%2C+Suzan%3BHaroon%2C+Mohamed+F%3BRabkin%2C+Brian+A%3BTyson%2C+Gene+W%3BHugenholtz%2C+Philip&rft.aulast=Yilmaz&rft.aufirst=Suzan&rft.date=2010-10-01&rft.volume=4&rft.issue=10&rft.spage=1352&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2010.73 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-10-01 N1 - Last updated - 2012-10-19 N1 - SubjectsTermNotLitGenreText - Flow cytometry; DNA sequencing; nucleic acids; Hindgut; Sludges; Bioreactors; DNA probes; Microscopy; genomics; Oligonucleotides; rRNA 16S; Fluorescence in situ hybridization; Isoptera DO - http://dx.doi.org/10.1038/ismej.2010.73 ER - TY - JOUR T1 - Rotational motions in homogeneous anisotropic elastic media AN - 849003887; 2011-013739 AB - Rotational motions in homogeneous anisotropic elastic media are studied under the assumption of plane wave propagation. The main goal is to investigate the influences of anisotropy in the behavior of the rotational wavefield. The focus is on P-waves that theoretically do not generate rotational motion in isotropic media. By using the Kelvin-Christoffel equation, expressions are obtained of the rotational motions of body waves as a function of the propagation direction and the coefficients of the elastic modulus matrix. As a result, the amplitudes of the rotation rates and their radiation patterns are quantified and it is concluded that (1) for strong local earthquakes and typical reservoir situations quasi P-rotation rates induced by anisotropy are significant, recordable, and can be used for inverse problems; and (2) for teleseismic wavefields, anisotropic effects are unlikely to be responsible for the observed rotational energy in the P coda. JF - Geophysics AU - Nguyen Dinh, Pham AU - Igel, Heiner AU - de la Puente, Josep AU - Kaser, Martin AU - Schoenberg, Michael A Y1 - 2010/09// PY - 2010 DA - September 2010 SP - D47 EP - D56 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 75 IS - 5 SN - 0016-8033, 0016-8033 KW - P-waves KW - body waves KW - technology KW - patterns KW - geophysical methods KW - elastic waves KW - seismic methods KW - rotation KW - ground motion KW - propagation KW - seismic waves KW - algorithms KW - heterogeneity KW - earthquakes KW - anisotropy KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/849003887?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Rotational+motions+in+homogeneous+anisotropic+elastic+media&rft.au=Nguyen+Dinh%2C+Pham%3BIgel%2C+Heiner%3Bde+la+Puente%2C+Josep%3BKaser%2C+Martin%3BSchoenberg%2C+Michael+A&rft.aulast=Nguyen+Dinh&rft.aufirst=Pham&rft.date=2010-09-01&rft.volume=75&rft.issue=5&rft.spage=D47&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3479489 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 32 N1 - PubXState - OK N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - algorithms; anisotropy; body waves; earthquakes; elastic waves; geophysical methods; ground motion; heterogeneity; P-waves; patterns; propagation; rotation; seismic methods; seismic waves; technology DO - http://dx.doi.org/10.1190/1.3479489 ER - TY - JOUR T1 - Feasibility of monitoring gas hydrate production with time-lapse vertical seismic profiling AN - 840347063; 2011-012427 AB - Many studies involving the application of geophysical methods in the field of gas hydrates have focused on determining rock-physics relationships for hydrate-bearing sediments, with the goal being to delineate the boundaries of gas-hydrate accumulations and to estimate the quantities of gas hydrate that such accumulations contain using remote-sensing techniques. However, the potential for using time-lapse geophysical methods to monitor the evolution of hydrate accumulations during production and, thus, to manage production has not been investigated. In this work, we begin to examine the feasibility of using time-lapse seismic methods-specifically, the vertical-seismic-profiling (VSP) method-for monitoring changes in hydrate accumulations that are predicted to occur during production of natural gas. A feasibility study of this nature is made possible through the coupled simulation of large-scale production in hydrate accumulations and time-lapse geophysical (seismic) surveys. We consider a hydrate accumulation in the Gulf of Mexico that may represent a promising target for production. Although the current study focuses on one seismic method (VSP), this approach can be extended easily to other geophysical methods, including other seismic methods (e.g., surface seismic or crosshole measurements) and electromagnetic surveys. In addition to examining the sensitivity of seismic attributes and parameters to the changing conditions in hydrate accumulations, our long-term goals in this work are to determine optimal sampling strategies (e.g., source frequency, time interval for data acquisition) and measurement configurations (e.g., source and receiver spacing for VSP), while taking into account uncertainties in rock-physics relationships. The numerical-modeling strategy demonstrated in this study may be used in the future to help design cost-effective geophysical surveys to track the evolution of hydrate properties. Here, we describe the modeling procedure and present some preliminary results. JF - SPE Journal AU - Kowalsky, Michael B AU - Nakagawa, Seiji AU - Moridis, George J Y1 - 2010/09// PY - 2010 DA - September 2010 SP - 634 EP - 645 PB - Society of Petroleum Engineers, Richardson, TX VL - 15 IS - 3 SN - 1086-055X, 1086-055X KW - geophysical surveys KW - gas hydrates KW - offshore KW - natural gas KW - petroleum KW - elastic waves KW - simulation KW - production KW - Gulf of Mexico KW - reservoir rocks KW - vertical seismic profiles KW - time-lapse methods KW - seismic profiles KW - monitoring KW - numerical models KW - geophysical methods KW - petroleum accumulation KW - seismic methods KW - physical properties KW - mathematical methods KW - surveys KW - geophysical profiles KW - seismic waves KW - North Atlantic KW - Atlantic Ocean KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/840347063?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SPE+Journal&rft.atitle=Feasibility+of+monitoring+gas+hydrate+production+with+time-lapse+vertical+seismic+profiling&rft.au=Kowalsky%2C+Michael+B%3BNakagawa%2C+Seiji%3BMoridis%2C+George+J&rft.aulast=Kowalsky&rft.aufirst=Michael&rft.date=2010-09-01&rft.volume=15&rft.issue=3&rft.spage=634&rft.isbn=&rft.btitle=&rft.title=SPE+Journal&rft.issn=1086055X&rft_id=info:doi/10.2118%2F132508-PA L2 - http://www.spe.org/papers/pubs/SPEjournal.php LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 38 N1 - PubXState - TX N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; elastic waves; gas hydrates; geophysical methods; geophysical profiles; geophysical surveys; Gulf of Mexico; mathematical methods; monitoring; natural gas; North Atlantic; numerical models; offshore; petroleum; petroleum accumulation; physical properties; production; reservoir rocks; seismic methods; seismic profiles; seismic waves; simulation; surveys; time-lapse methods; vertical seismic profiles DO - http://dx.doi.org/10.2118/132508-PA ER - TY - JOUR T1 - Tropical forest soil microbial communities couple iron and carbon biogeochemistry AN - 821736491; 14029447 AB - We report that iron-reducing bacteria are primary mediators of anaerobic carbon oxidation in upland tropical soils spanning a rainfall gradient (3500-5000 mm/yr) in northeast Puerto Rico. The abundant rainfall and high net primary productivity of these tropical forests provide optimal soil habitat for iron-reducing and iron-oxidizing bacteria. Spatially and temporally dynamic redox conditions make iron-transforming microbial communities central to the belowground carbon cycle in these wet tropical forests. The exceedingly high abundance of iron-reducing bacteria (up to 1.2 x 10 super(9) cells per gram soil) indicated that they possess extensive metabolic capacity to catalyze the reduction of iron minerals. In soils from the higher rainfall sites, measured rates of ferric iron reduction could account for up to 44% of organic carbon oxidation. Iron reducers appeared to compete with methanogens when labile carbon availability was limited. We found large numbers of bacteria that oxidize reduced iron at sites with high rates of iron reduction and large numbers of iron reducers. The coexistence of large populations of iron-reducing and iron-oxidizing bacteria is evidence for rapid iron cycling between its reduced and oxidized states and suggests that mutualistic interactions among these bacteria ultimately fuel organic carbon oxidation and inhibit CH sub(4) production in these upland tropical forests. JF - Ecology AU - Dubinsky, E A AU - Silver, W L AU - Firestone, M K AD - Ecology Department, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 70A-3317, Berkeley, California 94720 USA, eric.dubinsky@gmail.com A2 - Dahleren, RA (ed) Y1 - 2010/09// PY - 2010 DA - Sep 2010 SP - 2604 EP - 2612 VL - 91 IS - 9 SN - 0012-9658, 0012-9658 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Sustainability Science Abstracts; Ecology Abstracts KW - iron-reducing bacteria KW - Methane KW - Biogeochemistry KW - Fuels KW - Rainfall KW - Organic carbon KW - Carbon cycle KW - Microbial activity KW - tropical forests KW - Habitat KW - Methanogenic bacteria KW - Soil microorganisms KW - Soil KW - Carbon KW - ASW, Caribbean Sea, Greater Antilles, Puerto Rico KW - Oxidation KW - Minerals KW - Iron KW - Iron-oxidizing bacteria KW - M3 1010:Issues in Sustainable Development KW - D 04040:Ecosystem and Ecology Studies KW - A 01390:Forestry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/821736491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecology&rft.atitle=Tropical+forest+soil+microbial+communities+couple+iron+and+carbon+biogeochemistry&rft.au=Dubinsky%2C+E+A%3BSilver%2C+W+L%3BFirestone%2C+M+K&rft.aulast=Dubinsky&rft.aufirst=E&rft.date=2010-09-01&rft.volume=91&rft.issue=9&rft.spage=2604&rft.isbn=&rft.btitle=&rft.title=Ecology&rft.issn=00129658&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-12-01 N1 - Last updated - 2013-09-09 N1 - SubjectsTermNotLitGenreText - iron-reducing bacteria; Biogeochemistry; Rainfall; Fuels; Carbon cycle; Methanogenic bacteria; Habitat; Soil microorganisms; Soil; Oxidation; Iron; Minerals; Iron-oxidizing bacteria; Methane; Carbon; Organic carbon; Microbial activity; tropical forests; ASW, Caribbean Sea, Greater Antilles, Puerto Rico ER - TY - JOUR T1 - Arsenic remediation of drinking water using iron-oxide coated coal bottom ash AN - 807287198; 13898413 AB - We describe laboratory and field results of a novel arsenic removal adsorbent called 'Arsenic Removal Using Bottom Ash' (ARUBA). ARUBA is prepared by coating particles of coal bottom ash, a waste material from coal fired power plants, with iron (hydr)oxide. The coating process is simple and conducted at room temperature and atmospheric pressure. Material costs for ARUBA are estimated to be low (6 $0.08 per kg) and arsenic remediation with ARUBA has the potential to be affordable to resource-constrained communities. ARUBA is used for removing arsenic via a dispersal-and-removal process, and we envision that ARUBA would be used in community-scale water treatment centers. We show that ARUBA is able to reduce arsenic concentrations in contaminated Bangladesh groundwater to below the Bangladesh standard of 50 ppb. Using the Langmuir isotherm (R2 = 0.77) ARUBA's adsorption capacity in treating real groundwater is 2.6 10- 6mol/g (0.20 mg/g). Time-to-90% (defined as the time interval for ARUBA to remove 90% of the total amount of arsenic that is removed at equilibrium) is less than 1 hour. Reaction rates (pseudo-second-order kinetic model, R2 . 0.99) increase from 2.4 105 to 7.2 105 g mol- 1min- 1 as the groundwater arsenic concentration decreases from 560 to 170 ppb. We show that ARUBA's arsenic adsorption density (AAD), defined as the milligrams of arsenic removed at equilibrium per gram of ARUBA added, is linearly dependent on the initial arsenic concentration of the groundwater sample, for initial arsenic concentrations of up to 1600 ppb and an ARUBA dose of 4.0 g/L. This makes it easy to determine the amount of ARUBA required to treat a groundwater source when its arsenic concentration is known and less than 1600 ppb. Storing contaminated groundwater for two to three days before treatment is seen to significantly increase ARUBA's AAD. ARUBA can be separated from treated water by coagulation and clarification, which is expected to be less expensive than filtration of micron-scale particles, further contributing to the affordability of a community-scale water treatment center. JF - Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances & Environmental Engineering AU - Mathieu, Johanna L AU - Gadgil, Ashok J AU - Addy, Susan EA AU - Kowolik, Kristin AD - Department of Mechanical Engineering, University of California, Berkeley, California, USA,Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2010/09// PY - 2010 DA - Sep 2010 SP - 1446 EP - 1460 PB - Taylor & Francis Group Ltd., 2 Park Square Oxford OX14 4RN UK VL - 45 IS - 11 SN - 1093-4529, 1093-4529 KW - Toxicology Abstracts; Environment Abstracts; Sustainability Science Abstracts; Water Resources Abstracts KW - Arsenic KW - Bangladesh KW - coal bottom ash KW - drinking water KW - water contaminants KW - water treatment KW - Bioremediation KW - Groundwater Pollution KW - Particulates KW - Coal KW - Models KW - Water treatment KW - Ground water KW - Power plants KW - Water Treatment KW - Isotherms KW - Temperature effects KW - Water Pollution Treatment KW - Coagulation KW - ASW, Caribbean Sea, Aruba KW - Ash KW - Temperature KW - Wastes KW - Filtration KW - Equilibrium KW - Kinetics KW - Remediation KW - Adsorption KW - Atmospheric pressure KW - Groundwater KW - Drinking water KW - Iron KW - Coatings KW - M3 1010:Issues in Sustainable Development KW - SW 3060:Water treatment and distribution KW - X 24360:Metals KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/807287198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+Science+and+Health%2C+Part+A%3A+Toxic%2FHazardous+Substances+%26+Environmental+Engineering&rft.atitle=Arsenic+remediation+of+drinking+water+using+iron-oxide+coated+coal+bottom+ash&rft.au=Mathieu%2C+Johanna+L%3BGadgil%2C+Ashok+J%3BAddy%2C+Susan+EA%3BKowolik%2C+Kristin&rft.aulast=Mathieu&rft.aufirst=Johanna&rft.date=2010-09-01&rft.volume=45&rft.issue=11&rft.spage=1446&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+Science+and+Health%2C+Part+A%3A+Toxic%2FHazardous+Substances+%26+Environmental+Engineering&rft.issn=10934529&rft_id=info:doi/10.1080%2F10934529.2010.500940 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-11-01 N1 - Number of references - 44 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Temperature effects; Arsenic; Coagulation; Wastes; Coal; Models; Filtration; Water treatment; Kinetics; Power plants; Ground water; Adsorption; Atmospheric pressure; Isotherms; Drinking water; Iron; Coatings; Bioremediation; Ash; Temperature; Particulates; Groundwater; Equilibrium; Water Pollution Treatment; Remediation; Water Treatment; Groundwater Pollution; ASW, Caribbean Sea, Aruba; Bangladesh DO - http://dx.doi.org/10.1080/10934529.2010.500940 ER - TY - JOUR T1 - Endogenous short RNAs generated by Dicer 2 and RNA-dependent RNA polymerase 1 regulate mRNAs in the basal fungus Mucor circinelloides AN - 807285686; 13810077 AB - Endogenous short RNAs (esRNAs) play diverse roles in eukaryotes and usually are produced from double-stranded RNA (dsRNA) by Dicer. esRNAs are grouped into different classes based on biogenesis and function but not all classes are present in all three eukaryotic kingdoms. The esRNA register of fungi is poorly described compared to other eukaryotes and it is not clear what esRNA classes are present in this kingdom and whether they regulate the expression of protein coding genes. However, evidence that some dicer mutant fungi display altered phenotypes suggests that esRNAs play an important role in fungi. Here, we show that the basal fungus Mucor circinelloides produces new classes of esRNAs that map to exons and regulate the expression of many protein coding genes. The largest class of these exonic-siRNAs (ex-siRNAs) are generated by RNA-dependent RNA Polymerase 1 (RdRP1) and dicer-like 2 (DCL2) and target the mRNAs of protein coding genes from which they were produced. Our results expand the range of esRNAs in eukaryotes and reveal a new role for esRNAs in fungi. JF - Nucleic Acids Research AU - Nicolas, Francisco Esteban AU - Moxon, Simon AU - de Haro, Juan P AU - Calo, Silvia AU - Grigoriev, Igor V AU - Torres-Martinez, Santiago AU - Moulton, Vincent AU - Ruiz-Vazquez, Rosa M AU - Dalmay, Tamas AD - super(1)School of Biological Sciences, super(2)School of Computing Sciences, University of East Anglia, Norwich, NR4 7TJ, UK, super(3)Departamento de Genetica y Microbiologia, Facultad de Biologia, Universidad de Murcia, 30100 Murcia, Spain and super(4)DOE Joint Genome Institute, 2800 Mitchell Dr., Walnut Creek, CA 94598, USA Y1 - 2010/09// PY - 2010 DA - Sep 2010 SP - 5535 EP - 5541 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 38 IS - 16 SN - 0305-1048, 0305-1048 KW - Genetics Abstracts; Microbiology Abstracts C: Algology, Mycology & Protozoology; Biotechnology and Bioengineering Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - Mucor circinelloides KW - DNA-directed RNA polymerase KW - Exons KW - Fungi KW - RNA-directed RNA polymerase KW - Double-stranded RNA KW - mRNA KW - W 30940:Products KW - N 14830:RNA KW - K 03310:Genetics & Taxonomy KW - G 07780:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/807285686?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nucleic+Acids+Research&rft.atitle=Endogenous+short+RNAs+generated+by+Dicer+2+and+RNA-dependent+RNA+polymerase+1+regulate+mRNAs+in+the+basal+fungus+Mucor+circinelloides&rft.au=Nicolas%2C+Francisco+Esteban%3BMoxon%2C+Simon%3Bde+Haro%2C+Juan+P%3BCalo%2C+Silvia%3BGrigoriev%2C+Igor+V%3BTorres-Martinez%2C+Santiago%3BMoulton%2C+Vincent%3BRuiz-Vazquez%2C+Rosa+M%3BDalmay%2C+Tamas&rft.aulast=Nicolas&rft.aufirst=Francisco&rft.date=2010-09-01&rft.volume=38&rft.issue=16&rft.spage=5535&rft.isbn=&rft.btitle=&rft.title=Nucleic+Acids+Research&rft.issn=03051048&rft_id=info:doi/10.1093%2Fnar%2Fgkq301 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-11-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - DNA-directed RNA polymerase; Exons; Double-stranded RNA; RNA-directed RNA polymerase; Fungi; mRNA; Mucor circinelloides DO - http://dx.doi.org/10.1093/nar/gkq301 ER - TY - JOUR T1 - Estimation of deformation and stiffness of fractures close to tunnels using data from single-hole hydraulic testing and grouting AN - 787264333; 13714968 AB - Sealing of tunnels in fractured rocks is commonly performed by pre- or post-excavation grouting. The grouting boreholes are frequently drilled close to the tunnel wall, an area where rock stresses can be low and fractures can more easily open up during grout pressurization. In this paper we suggest that data from hydraulic testing and grouting can be used to identify grout-induced fracture opening, to estimate fracture stiffness of such fractures, and to evaluate its impact on the grout performance. A conceptual model and a method are presented for estimating fracture stiffness. The method is demonstrated using grouting data from four pre-excavation grouting boreholes at a shallow tunnel (50 m) in Nygaard, Sweden, and two post-excavation grouting boreholes at a deep tunnel (450 m) in Aespoe HRL, Sweden. The estimated stiffness of intersecting fractures for the boreholes at the shallow Nygaard tunnel are low (2-5 GPa/m) and in agreement with literature data from field experiments at other fractured rock sites. Higher stiffness was obtained for the deeper tunnel boreholes at Aespoe which is reasonable considering that generally higher rock stresses are expected at greater depths. Our method of identifying and evaluating the properties and impact of deforming fractures might be most applicable when grouting takes place in boreholes adjacent to the tunnel wall, where local stresses might be low and where deforming (opening) fractures may take most of the grout. JF - International Journal of Rock Mechanics and Mining Sciences AU - Fransson, Aa AU - Tsang, C-F AU - Rutqvist, J AU - Gustafson, G AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA, asa.fransson@chalmers.se Y1 - 2010/09// PY - 2010 DA - September 2010 SP - 887 EP - 893 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 47 IS - 6 SN - 1365-1609, 1365-1609 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Hydromechanical coupling KW - Fractured rock KW - Fracture normal stiffness KW - Stress KW - Hydraulic testing KW - Grouting KW - ANE, Sweden KW - Testing Procedures KW - Geologic Fractures KW - Hydraulics KW - Fractures KW - Field Tests KW - Tunnels KW - Boreholes KW - Ecosystem disturbance KW - Rock Mechanics KW - Rock mechanics KW - Mining KW - Sweden KW - Deformation KW - SW 6010:Structures KW - Q2 09404:Minerals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/787264333?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences&rft.atitle=Estimation+of+deformation+and+stiffness+of+fractures+close+to+tunnels+using+data+from+single-hole+hydraulic+testing+and+grouting&rft.au=Fransson%2C+Aa%3BTsang%2C+C-F%3BRutqvist%2C+J%3BGustafson%2C+G&rft.aulast=Fransson&rft.aufirst=Aa&rft.date=2010-09-01&rft.volume=47&rft.issue=6&rft.spage=887&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences&rft.issn=13651609&rft_id=info:doi/10.1016%2Fj.ijrmms.2010.05.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-12-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Rock mechanics; Grouting; Fractures; Mining; Tunnels; Boreholes; Ecosystem disturbance; Deformation; Testing Procedures; Hydraulics; Geologic Fractures; Rock Mechanics; Stress; Field Tests; ANE, Sweden; Sweden DO - http://dx.doi.org/10.1016/j.ijrmms.2010.05.007 ER - TY - JOUR T1 - Characterization of soil water content variability and soil texture using GPR groundwave techniques AN - 762675203; 2010-090886 AB - Accurate characterization of near-surface soil water content is vital for guiding agricultural management decisions and for reducing the potential negative environmental impacts of agriculture. Characterizing the near-surface soil water content can be difficult, as this parameter is often both spatially and temporally variable, and obtaining sufficient measurements to describe the heterogeneity can be prohibitively expensive. Understanding the spatial correlation of near-surface soil water content can help optimize data acquisition and improve understanding of the processes controlling soil water content at the field scale. In this study, ground penetrating radar (GPR) methods were used to characterize the spatial correlation of water content in a three acre field as a function of sampling depth, season, vegetation, and soil texture. GPR data were acquired with 450 MHz and 900 MHz antennas, and measurements of the GPR groundwave were used to estimate soil water content at four different times. Additional water content estimates were obtained using time domain reflectometry measurements, and soil texture measurements were also acquired. Variograms were calculated for each set of measurements, and comparison of these variograms showed that the horizontal spatial correlation was greater for deeper water content measurements than for shallower measurements. Precipitation and irrigation were both shown to increase the spatial variability of water content, while shallowly-rooted vegetation decreased the variability. Comparison of the variograms of water content and soil texture showed that soil texture generally had greater small-scale spatial correlation than water content, and that the variability of water content in deeper soil layers was more closely correlated to soil texture than were shallower water content measurements. Lastly, cross-variograms of soil texture and water content were calculated, and co-kriging of water content estimates and soil texture measurements showed that geophysically-derived estimates of soil water content could be used to improve spatial estimation of soil texture. JF - Journal of Environmental & Engineering Geophysics AU - Grote, Katherine AU - Anger, Cale T AU - Kelly, Bridget AU - Hubbard, Susan AU - Rubin, Yoram A2 - Allred, Barry J. A2 - Smith, Bruce D. Y1 - 2010/09// PY - 2010 DA - September 2010 SP - 93 EP - 110 PB - Environmental and Engineering Geophysical Society, Englewood, CO VL - 15 IS - 3 SN - 1083-1363, 1083-1363 KW - United States KW - soils KW - geophysical surveys KW - textures KW - ground-penetrating radar KW - Napa County California KW - geophysical methods KW - radar methods KW - Napa Valley KW - California KW - groundwave methods KW - topography KW - Robert Mondavi Vineyard KW - sampling KW - fluvial features KW - surveys KW - water content KW - time domain analysis KW - 20:Applied geophysics KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/762675203?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Environmental+%26+Engineering+Geophysics&rft.atitle=Characterization+of+soil+water+content+variability+and+soil+texture+using+GPR+groundwave+techniques&rft.au=Grote%2C+Katherine%3BAnger%2C+Cale+T%3BKelly%2C+Bridget%3BHubbard%2C+Susan%3BRubin%2C+Yoram&rft.aulast=Grote&rft.aufirst=Katherine&rft.date=2010-09-01&rft.volume=15&rft.issue=3&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Journal+of+Environmental+%26+Engineering+Geophysics&rft.issn=10831363&rft_id=info:doi/10.2113%2FJEEG15.3.93 L2 - http://jeeg.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Environmental & Engineering Geophysical Society | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2010-01-01 N1 - PubXState - CO N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - California; fluvial features; geophysical methods; geophysical surveys; ground-penetrating radar; groundwave methods; Napa County California; Napa Valley; radar methods; Robert Mondavi Vineyard; sampling; soils; surveys; textures; time domain analysis; topography; United States; water content DO - http://dx.doi.org/10.2113/JEEG15.3.93 ER - TY - JOUR T1 - Measuring solar reflectance - Part II: Review of practical methods AN - 759316420; 13715619 AB - A companion article explored how solar reflectance varies with surface orientation and solar position, and found that clear sky air mass 1 global horizontal (AM1GH) solar reflectance is a preferred quantity for estimating solar heat gain. In this study we show that AM1GH solar reflectance R sub(g,0) can be accurately measured with a pyranometer, a solar spectrophotometer, or an updated edition of the Solar Spectrum Reflectometer (version 6). Of primary concern are errors that result from variations in the spectral and angular distributions of incident sunlight. Neglecting shadow, background and instrument errors, the conventional pyranometer technique can measure R sub(g,0) to within 0.01 for surface slopes up to 5:12 [23], and to within 0.02 for surface slopes up to 12:12 [45]. An alternative pyranometer method minimizes shadow errors and can be used to measure R sub(g,0) of a surface as small as 1 m in diameter. The accuracy with which it can measure R sub(g,0) is otherwise comparable to that of the conventional pyranometer technique. A solar spectrophotometer can be used to determine [MathML equation], a solar reflectance computed by averaging solar spectral reflectance weighted with AM1GH solar spectral irradiance. Neglecting instrument errors, [MathML equation] matches R sub(g,0) to within 0.006. The air mass 1.5 solar reflectance measured with version 5 of the Solar Spectrum Reflectometer can differ from [MathML equation] by as much as 0.08, but the AM1GH output of version 6 of this instrument matches [MathML equation] to within about 0.01. JF - Solar Energy AU - Levinson, Ronnen AU - Akbari, Hashem AU - Berdahl, Paul AD - Heat Island Group, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, United States, RML27@cornell.edu Y1 - 2010/09// PY - 2010 DA - Sep 2010 SP - 1745 EP - 1759 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 84 IS - 9 SN - 0038-092X, 0038-092X KW - Environment Abstracts; Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - Solar reflectance KW - Solar heat gain KW - Pyranometer KW - Solar spectrophotometer KW - Solar Spectrum Reflectometer KW - Spectrally selective "cool colored" surface KW - Air masses KW - Reflectance KW - angular distribution KW - Pyranometers KW - sunlight KW - Solar spectrum KW - air masses KW - Solar irradiance KW - Solar spectral irradiance KW - Instrument errors KW - Reviews KW - Shadows KW - spectrophotometers KW - Solar energy KW - M2 551.513:General Circulation (551.513) KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759316420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Solar+Energy&rft.atitle=Measuring+solar+reflectance+-+Part+II%3A+Review+of+practical+methods&rft.au=Levinson%2C+Ronnen%3BAkbari%2C+Hashem%3BBerdahl%2C+Paul&rft.aulast=Levinson&rft.aufirst=Ronnen&rft.date=2010-09-01&rft.volume=84&rft.issue=9&rft.spage=1745&rft.isbn=&rft.btitle=&rft.title=Solar+Energy&rft.issn=0038092X&rft_id=info:doi/10.1016%2Fj.solener.2010.04.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Air masses; Solar spectral irradiance; Instrument errors; Reflectance; Pyranometers; Shadows; Solar spectrum; Solar energy; Solar irradiance; angular distribution; Reviews; sunlight; spectrophotometers; air masses DO - http://dx.doi.org/10.1016/j.solener.2010.04.017 ER - TY - JOUR T1 - Measuring solar reflectance - Part I: Defining a metric that accurately predicts solar heat gain AN - 759316414; 13715618 AB - Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective "cool colored" surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland US latitudes, this metric R sub(E891BN) can underestimate the annual peak solar heat gain of a typical roof or pavement (slope [less-than-or-equals, slant] 5:12 [23]) by as much as 89 W m super(-2), and underestimate its peak surface temperature by up to 5 K. Using R sub(E891BN) to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool roof net energy savings by as much as 23%. We define clear sky air mass one global horizontal ("AM1GH") solar reflectance R sub(g,0), a simple and easily measured property that more accurately predicts solar heat gain. R sub(g,0) predicts the annual peak solar heat gain of a roof or pavement to within 2 W m super(-2), and overestimates N by no more than 3%. R sub(g,0) is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R sub(g,0) can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer. JF - Solar Energy AU - Levinson, Ronnen AU - Akbari, Hashem AU - Berdahl, Paul AD - Heat Island Group, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, United States, RML27@cornell.edu Y1 - 2010/09// PY - 2010 DA - Sep 2010 SP - 1717 EP - 1744 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 84 IS - 9 SN - 0038-092X, 0038-092X KW - Environment Abstracts; Meteorological & Geoastrophysical Abstracts; Sustainability Science Abstracts KW - Solar reflectance KW - Solar heat gain KW - Pyranometer KW - Solar spectrophotometer KW - Solar Spectrum Reflectometer KW - Spectrally selective "cool colored" surface KW - Air masses KW - Surface temperatures KW - Reflectance KW - angular distribution KW - Pyranometers KW - Energy conservation KW - Simulation KW - sunlight KW - Solar spectrum KW - air masses KW - Solar irradiance KW - Solar spectral irradiance KW - Numerical simulations KW - Economics KW - latitude KW - spectrophotometers KW - Solar energy KW - M2 551.513:General Circulation (551.513) KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759316414?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Solar+Energy&rft.atitle=Measuring+solar+reflectance+-+Part+I%3A+Defining+a+metric+that+accurately+predicts+solar+heat+gain&rft.au=Levinson%2C+Ronnen%3BAkbari%2C+Hashem%3BBerdahl%2C+Paul&rft.aulast=Levinson&rft.aufirst=Ronnen&rft.date=2010-09-01&rft.volume=84&rft.issue=9&rft.spage=1717&rft.isbn=&rft.btitle=&rft.title=Solar+Energy&rft.issn=0038092X&rft_id=info:doi/10.1016%2Fj.solener.2010.04.018 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Air masses; Solar spectral irradiance; Surface temperatures; Reflectance; Numerical simulations; Pyranometers; Solar spectrum; Solar energy; Solar irradiance; angular distribution; Economics; Energy conservation; Simulation; latitude; spectrophotometers; sunlight; air masses DO - http://dx.doi.org/10.1016/j.solener.2010.04.018 ER - TY - JOUR T1 - ChIP-Seq identification of weakly conserved heart enhancers AN - 755134021; 13632844 AB - Accurate control of tissue-specific gene expression plays a pivotal role in heart development, but few cardiac transcriptional enhancers have thus far been identified. Extreme noncoding-sequence conservation has successfully predicted enhancers that are active in many tissues but has failed to identify substantial numbers of heart-specific enhancers. Here, we used ChIP-Seq with the enhancer-associated protein p300 from mouse embryonic day 11.5 heart tissue to identify over 3,000 candidate heart enhancers genome wide. Compared to enhancers active in othertissues we studied at this time point, most candidate heart enhancers were less deeply conserved in vertebrate evolution. Nevertheless, transgenic mouse assays of 130 candidate regions revealed that most function reproducibly as enhancers active in the heart, irrespective of their degree of evolutionary constraint. These results provide evidence for a large population of poorly conserved heart enhancers and suggest that the evolutionary conservation of embryonic enhancers can vary depending on tissue type. JF - Nature Genetics AU - Blow, Matthew J AU - McCulley, David J AU - Li, Zirong AU - Zhang, Tao AU - Akiyama, Jennifer A AU - Holt, Amy AU - Plajzer-Frick, Ingrid AU - Shoukry, Malak AU - Wright, Crystal AU - Chen, Feng AU - Afzal, Veena AU - Bristow, James AU - Ren, Bing AU - Black, Brian L AU - Rubin, Edward M AU - Visel, Axel AU - Pennacchio, Len A AD - [1] Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. [2] US Department of Energy Joint Genome Institute, Walnut Creek, California, USA. Y1 - 2010/09// PY - 2010 DA - September 2010 SP - 806 EP - 810 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 42 IS - 9 SN - 1061-4036, 1061-4036 KW - Biochemistry Abstracts 2: Nucleic Acids; Sustainability Science Abstracts; Genetics Abstracts KW - Heart KW - Gene expression KW - Genomes KW - Genetics KW - Enhancers KW - Evolutionary conservation KW - Conservation KW - Proteins KW - Transcription KW - Embryos KW - Transgenic mice KW - M3 1010:Issues in Sustainable Development KW - N 14830:RNA KW - G 07780:Fungi UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/755134021?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Genetics&rft.atitle=ChIP-Seq+identification+of+weakly+conserved+heart+enhancers&rft.au=Blow%2C+Matthew+J%3BMcCulley%2C+David+J%3BLi%2C+Zirong%3BZhang%2C+Tao%3BAkiyama%2C+Jennifer+A%3BHolt%2C+Amy%3BPlajzer-Frick%2C+Ingrid%3BShoukry%2C+Malak%3BWright%2C+Crystal%3BChen%2C+Feng%3BAfzal%2C+Veena%3BBristow%2C+James%3BRen%2C+Bing%3BBlack%2C+Brian+L%3BRubin%2C+Edward+M%3BVisel%2C+Axel%3BPennacchio%2C+Len+A&rft.aulast=Blow&rft.aufirst=Matthew&rft.date=2010-09-01&rft.volume=42&rft.issue=9&rft.spage=806&rft.isbn=&rft.btitle=&rft.title=Nature+Genetics&rft.issn=10614036&rft_id=info:doi/10.1038%2Fng.650 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Genomes; Gene expression; Heart; Evolutionary conservation; Enhancers; Transcription; Embryos; Transgenic mice; Genetics; Proteins; Conservation DO - http://dx.doi.org/10.1038/ng.650 ER - TY - JOUR T1 - Biomimetic actinide chelators: an update on the preclinical development of the orally active hydroxypyridonate decorporation agents 3,4,3-LI(1,2-HOPO) and 5-LIO(Me-3,2-HOPO). AN - 748937156; 20699704 AB - The threat of a dirty bomb or other major radiological contamination presents a danger of large-scale radiation exposure of the population. Because major components of such contamination are likely to be actinides, actinide decorporation treatments that will reduce radiation exposure must be a priority. Current therapies for the treatment of radionuclide contamination are limited and extensive efforts must be dedicated to the development of therapeutic, orally bioavailable, actinide chelators for emergency medical use. Using a biomimetic approach based on the similar biochemical properties of plutonium(IV) and iron(III), siderophore-inspired multidentate hydroxypyridonate ligands have been designed and are unrivaled in terms of actinide-affinity, selectivity, and efficiency. A perspective on the preclinical development of two hydroxypyridonate actinide decorporation agents, 3,4,3-LI(1,2-HOPO) and 5-LIO(Me-3,2-HOPO), is presented. The chemical syntheses of both candidate compounds have been optimized for scale-up. Baseline preparation and analytical methods suitable for manufacturing large amounts have been established. Both ligands show much higher actinide-removal efficacy than the currently approved agent, diethylenetriaminepentaacetic acid (DTPA), with different selectivity for the tested isotopes of plutonium, americium, uranium and neptunium. No toxicity is observed in cells derived from three different human tissue sources treated in vitro up to ligand concentrations of 1 mM, and both ligands were well tolerated in rats when orally administered daily at high doses (>100 micromol kg d) over 28 d under good laboratory practice guidelines. Both compounds are on an accelerated development pathway towards clinical use. JF - Health physics AU - Abergel, Rebecca J AU - Durbin, Patricia W AU - Kullgren, Birgitta AU - Ebbe, Shirley N AU - Xu, Jide AU - Chang, Polly Y AU - Bunin, Deborah I AU - Blakely, Eleanor A AU - Bjornstad, Kathleen A AU - Rosen, Chris J AU - Shuh, David K AU - Raymond, Kenneth N AD - Chemical Sciences Division, Glenn T. Seaborg Center, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. rjabergel@lbl.gov Y1 - 2010/09// PY - 2010 DA - September 2010 SP - 401 EP - 407 VL - 99 IS - 3 KW - 4-carbamoyl-3-hydroxy-1-methyl-2(1H)-pyridinone KW - 0 KW - Actinoid Series Elements KW - Chelating Agents KW - Ligands KW - Organometallic Compounds KW - Pyridones KW - Pentetic Acid KW - 7A314HQM0I KW - Lithium KW - 9FN79X2M3F KW - Index Medicus KW - Administration, Oral KW - Dose-Response Relationship, Drug KW - Humans KW - Cell Line -- drug effects KW - Drug Evaluation, Preclinical -- methods KW - Time Factors KW - Pentetic Acid -- pharmacology KW - Biomimetic Materials -- pharmacology KW - Biomimetic Materials -- chemical synthesis KW - Organometallic Compounds -- pharmacology KW - Pyridones -- chemistry KW - Lithium -- chemistry KW - Actinoid Series Elements -- chemical synthesis KW - Actinoid Series Elements -- chemistry KW - Pyridones -- pharmacology KW - Actinoid Series Elements -- pharmacology KW - Organometallic Compounds -- chemistry KW - Decontamination -- methods KW - Chelating Agents -- administration & dosage KW - Chelating Agents -- pharmacology KW - Chelating Agents -- chemistry KW - Actinoid Series Elements -- administration & dosage KW - Biomimetic Materials -- administration & dosage KW - Biomimetic Materials -- chemistry KW - Chelating Agents -- chemical synthesis KW - Organometallic Compounds -- chemical synthesis KW - Pyridones -- chemical synthesis UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/748937156?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Biomimetic+actinide+chelators%3A+an+update+on+the+preclinical+development+of+the+orally+active+hydroxypyridonate+decorporation+agents+3%2C4%2C3-LI%281%2C2-HOPO%29+and+5-LIO%28Me-3%2C2-HOPO%29.&rft.au=Abergel%2C+Rebecca+J%3BDurbin%2C+Patricia+W%3BKullgren%2C+Birgitta%3BEbbe%2C+Shirley+N%3BXu%2C+Jide%3BChang%2C+Polly+Y%3BBunin%2C+Deborah+I%3BBlakely%2C+Eleanor+A%3BBjornstad%2C+Kathleen+A%3BRosen%2C+Chris+J%3BShuh%2C+David+K%3BRaymond%2C+Kenneth+N&rft.aulast=Abergel&rft.aufirst=Rebecca&rft.date=2010-09-01&rft.volume=99&rft.issue=3&rft.spage=401&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=1538-5159&rft_id=info:doi/10.1097%2FHP.0b013e3181c21273 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-10-25 N1 - Date created - 2010-08-11 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Health Phys. 2008 Nov;95(5):465-92 [18849679] Radiat Res. 2008 Oct;170(4):540-8 [19024661] Health Phys. 2000 May;78(5):511-21 [10772024] J Biomed Opt. 2002 Jul;7(3):417-24 [12175292] Chem Rev. 2003 Nov;103(11):4207-82 [14611263] Radiat Res. 2005 Jan;163(1):115-23 [15606315] J Immunol Methods. 1983 Dec 16;65(1-2):55-63 [6606682] J Med Chem. 1988 Jan;31(1):11-8 [2826783] J Med Chem. 1995 Jul 7;38(14):2606-14 [7629800] Health Phys. 1998 Jul;75(1):34-50 [9645664] In Vitro. 1972 Mar-Apr;7(5):323-9 [4113815] N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1097/HP.0b013e3181c21273 ER - TY - JOUR T1 - Use of environmental sensors and sensor networks to develop water and salinity budgets for seasonal wetland real-time water quality management AN - 1777090004; 13203105 AB - Management of river salt loads in a complex and highly regulated river basin such as the San Joaquin River Basin of California presents significant challenges for current Information Technology. Computer-based numerical models are used as a means of simulating hydrologic processes and water quality within the basin and can be useful tools for organizing Basin data in a structured and readily accessible manner. These models can also be used to extend information derived from environmental sensors within existing monitoring networks to areas outside these systems based on similarity factors - since it would be cost prohibitive to collect data for every channel or pollutant source within the Basin. A common feature of all hydrologic and water quality models is the ability to perform mass balances. This paper describes the use of a number of state-of-the-art sensor technologies that have been deployed to obtain water and salinity mass balances for a 60,000ha tract of seasonally managed wetlands in the San Joaquin River Basin of California. These sensor technologies are being combined with more traditional environmental monitoring techniques to support real-time salinity management (RTSM) in the River Basin. Two of these new technology applications: YSI-Econet (which supports continuous flow and salinity monitoring of surface water deliveries and seasonal wetland drainage); and electromagnetic salinity mapping (a remote sensing technology for mapping soil salinity in the surface soils) - have not previously been reported in the literature. Continuous sensor deployments that experience more widespread use include: weather station sensor arrays - used to estimate wetland pond evaporation and moist soil plant evapotranspiration; high resolution multi-spectral imagery - used to discriminate between and estimate the area of wetland moist soil plant vegetation; and groundwater level sensors - used primarily to estimate seepage losses beneath a wetland pond during flood-up. Important issues associated with quality assurance of continuous data are discussed and the application of a state-of-the-art software product AQUARIUS, which streamlines the process of data error correction and dissemination, is described as an essential element of ensuring successful RTSM implementation in the San Joaquin River Basin. JF - Environmental Modelling & Software AU - Quinn, Nigel WT AU - Ortega, Ricardo AU - Rahilly, Patrick JA AU - Royer, Caleb W AD - Lawrence Berkeley National Laboratory, Berkeley, CA, United States Y1 - 2010/09// PY - 2010 DA - September 2010 SP - 1045 EP - 1058 PB - Elsevier Science, P.O. Box 800 Kidlington Oxford OX5 1DX UK VL - 25 IS - 9 SN - 1364-8152, 1364-8152 KW - Environmental Engineering Abstracts (EN); Computer and Information Systems Abstracts (CI); CSA / ASCE Civil Engineering Abstracts (CE) KW - Salt management KW - Sensors KW - Sensor networks KW - Water quality KW - Forecasting KW - Environmental decision support KW - Estimates KW - Salinity KW - Mathematical models KW - Soil (material) KW - Basins KW - Wetlands KW - River basins KW - Freshwater UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777090004?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Modelling+%26+Software&rft.atitle=Use+of+environmental+sensors+and+sensor+networks+to+develop+water+and+salinity+budgets+for+seasonal+wetland+real-time+water+quality+management&rft.au=Quinn%2C+Nigel+WT%3BOrtega%2C+Ricardo%3BRahilly%2C+Patrick+JA%3BRoyer%2C+Caleb+W&rft.aulast=Quinn&rft.aufirst=Nigel&rft.date=2010-09-01&rft.volume=25&rft.issue=9&rft.spage=1045&rft.isbn=&rft.btitle=&rft.title=Environmental+Modelling+%26+Software&rft.issn=13648152&rft_id=info:doi/10.1016%2Fj.envsoft.2009.10.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2016-10-04 N1 - SubjectsTermNotLitGenreText - Freshwater DO - http://dx.doi.org/10.1016/j.envsoft.2009.10.011 ER - TY - JOUR T1 - A molecular and isotopic study of the macromolecular organic matter of the ungrouped C2 WIS 91600 and its relationship to Tagish Lake and PCA 91008 AN - 1287378603; 2013-019668 AB - Insight into the chemical history of an ungrouped type 2 carbonaceous chondrite meteorite, Wisconsin Range (WIS) 91600, is gained through molecular analyses of insoluble organic matter (IOM) using solid-state (super 13) C nuclear magnetic resonance (NMR) spectroscopy, X-ray absorption near edge structure spectroscopy (XANES), and pyrolysis-gas chromatography coupled with mass spectrometry (pyr-GC/MS), and our previous bulk elemental and isotopic data. The IOM from WIS 91600 exhibits similarities in its abundance and bulk delta (super 15) N value with IOM from another ungrouped carbonaceous chondrite Tagish Lake, while it exhibits H/C, delta (super 13) C, and delta D values that are more similar to IOM from the heated CM, Pecora Escarpment (PCA) 91008. The (super 13) C NMR spectra of IOM of WIS 91600 and Tagish Lake are similar, except for a greater abundance of CH (sub x) O species in the latter and sharper carbonyl absorption in the former. Unusual cross-polarization (CP) dynamics is observed for WIS 91600 that indicate the presence of two physically distinct organic domains, in which the degrees of aromatic condensation are distinctly different. The presence of two different organic domains in WIS 91600 is consistent with its brecciated nature. The formation of more condensed aromatics is the likely result of short duration thermal excursions during impacts. The fact that both WIS 91600 and PCA 91008 were subjected to short duration heating that is distinct from the thermal history of type 3 chondrites is confirmed by Carbon-XANES. Finally, after being briefly heated (400 degrees C for 10 s), the pyrolysis behavior of Tagish Lake IOM is similar to that of WIS 91600 and PCA 91008. We conclude that WIS 91600 experienced very moderate, short duration heating at low temperatures (<500 degrees C) after an episode of aqueous alteration under conditions that were similar to those experienced by Tagish Lake. JF - Meteoritics & Planetary Science AU - Yabuta, Hikaru AU - Alexander, Conel M O AU - Fogel, Marilyn L AU - Kilcoyne, A L David AU - Cody, George D Y1 - 2010/09// PY - 2010 DA - September 2010 SP - 1446 EP - 1460 PB - Meteoritical Society, Fayetteville, AR VL - 45 IS - 9 SN - 1086-9379, 1086-9379 KW - Pecora Escarpment Meteorites KW - stony meteorites KW - isotopes KW - gas chromatograms KW - Wisconsin Range Meteorites KW - mass spectra KW - Tagish Lake Meteorite KW - thermal history KW - stable isotopes KW - NMR spectra KW - XANES spectra KW - meteorites KW - pyrolysis KW - insoluble residues KW - carbon KW - spectra KW - chondrites KW - WIS 91600 KW - isotope ratios KW - C-13/C-12 KW - carbonaceous chondrites KW - X-ray spectra KW - molecular structure KW - aqueous alteration KW - organic compounds KW - Antarctica KW - D/H KW - hydrogen KW - chromatograms KW - PCA 91008 KW - 05B:Petrology of meteorites and tektites KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1287378603?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=A+molecular+and+isotopic+study+of+the+macromolecular+organic+matter+of+the+ungrouped+C2+WIS+91600+and+its+relationship+to+Tagish+Lake+and+PCA+91008&rft.au=Yabuta%2C+Hikaru%3BAlexander%2C+Conel+M+O%3BFogel%2C+Marilyn+L%3BKilcoyne%2C+A+L+David%3BCody%2C+George+D&rft.aulast=Yabuta&rft.aufirst=Hikaru&rft.date=2010-09-01&rft.volume=45&rft.issue=9&rft.spage=1446&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01117.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 41 N1 - PubXState - AR N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-02-14 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - Antarctica; aqueous alteration; C-13/C-12; carbon; carbonaceous chondrites; chondrites; chromatograms; D/H; gas chromatograms; hydrogen; insoluble residues; isotope ratios; isotopes; mass spectra; meteorites; molecular structure; NMR spectra; organic compounds; PCA 91008; Pecora Escarpment Meteorites; pyrolysis; spectra; stable isotopes; stony meteorites; Tagish Lake Meteorite; thermal history; WIS 91600; Wisconsin Range Meteorites; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01117.x ER - TY - JOUR T1 - GeoChip 3.0 as a high-throughput tool for analyzing microbial community composition, structure and functional activity AN - 1093456212; 16969410 AB - A new generation of functional gene arrays (FGAs; GeoChip 3.0) has been developed, with similar to 28 000 probes covering approximately 57 000 gene variants from 292 functional gene families involved in carbon, nitrogen, phosphorus and sulfur cycles, energy metabolism, antibiotic resistance, metal resistance and organic contaminant degradation. GeoChip 3.0 also has several other distinct features, such as a common oligo reference standard (CORS) for data normalization and comparison, a software package for data management and future updating and the gyrB gene for phylogenetic analysis. Computational evaluation of probe specificity indicated that all designed probes would have a high specificity to their corresponding targets. Experimental analysis with synthesized oligonucleotides and genomic DNAs showed that only 0.0036-0.025% false-positive rates were observed, suggesting that the designed probes are highly specific under the experimental conditions examined. In addition, GeoChip 3.0 was applied to analyze soil microbial communities in a multifactor grassland ecosystem in Minnesota, USA, which showed that the structure, composition and potential activity of soil microbial communities significantly changed with the plant species diversity. As expected, GeoChip 3.0 is a high-throughput powerful tool for studying microbial community functional structure, and linking microbial communities to ecosystem processes and functioning. JF - ISME Journal AU - He, Zhili AU - Deng, Ye AU - Van Nostrand, Joy D AU - Tu, Qichao AU - Xu, Meiying AU - Hemme, Christopher L AU - Li, Xingyuan AU - Wu, Liyou AU - Gentry, Terry J AU - Yin, Yifeng AU - Liebich, Jost AU - Hazen, Terry C AU - Zhou, Jizhong AD - 1] Institute for Environmental Genomics and Department of Botany and Microbiology, University of Oklahoma, Norman, OK, USA [2] Virtual Institute for Microbial Stress and Survival, vimss.lbl.gov Y1 - 2010/09// PY - 2010 DA - Sep 2010 SP - 1167 EP - 1179 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 4 IS - 9 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Antibiotic resistance KW - Carbon KW - Community composition KW - Computer applications KW - Computer programs KW - Contaminants KW - DNA probes KW - DNA topoisomerase KW - Data processing KW - Energy metabolism KW - Gene families KW - Grasslands KW - Phosphorus KW - Plant communities KW - Soil microorganisms KW - Species diversity KW - Sulfur KW - genomics KW - software KW - A 01350:Microbial Resistance UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1093456212?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=GeoChip+3.0+as+a+high-throughput+tool+for+analyzing+microbial+community+composition%2C+structure+and+functional+activity&rft.au=He%2C+Zhili%3BDeng%2C+Ye%3BVan+Nostrand%2C+Joy+D%3BTu%2C+Qichao%3BXu%2C+Meiying%3BHemme%2C+Christopher+L%3BLi%2C+Xingyuan%3BWu%2C+Liyou%3BGentry%2C+Terry+J%3BYin%2C+Yifeng%3BLiebich%2C+Jost%3BHazen%2C+Terry+C%3BZhou%2C+Jizhong&rft.aulast=He&rft.aufirst=Zhili&rft.date=2010-09-01&rft.volume=4&rft.issue=9&rft.spage=1167&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2010.46 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-10-01 N1 - Last updated - 2012-10-19 N1 - SubjectsTermNotLitGenreText - Sulfur; Data processing; Energy metabolism; DNA probes; Phosphorus; DNA topoisomerase; Computer applications; Gene families; Soil microorganisms; Grasslands; Computer programs; software; Community composition; Carbon; Species diversity; Plant communities; genomics; Contaminants; Antibiotic resistance DO - http://dx.doi.org/10.1038/ismej.2010.46 ER - TY - JOUR T1 - Comparative Analyses of the Bacterial Microbiota of the Human Nostril and Oropharynx AN - 877602601; 13708964 AB - The nose and throat are important sites of pathogen colonization, yet the microbiota of both is relatively unexplored by culture-independent approaches. We examined the bacterial microbiota of the nostril and posterior wall of the oropharynx from seven healthy adults using two culture-independent methods, a 16S rRNA gene microarray (PhyloChip) and 16S rRNA gene clone libraries. While the bacterial microbiota of the oropharynx was richer than that of the nostril, the oropharyngeal microbiota varied less among participants than did nostril microbiota. A few phyla accounted for the majority of the bacteria detected at each site: Firmicutes and Actinobacteria in the nostril and Firmicutes, Proteobacteria, and Bacteroidetes in the oropharynx. Compared to culture-independent surveys of microbiota from other body sites, the microbiota of the nostril and oropharynx show distinct phylum-level distribution patterns, supporting niche-specific colonization at discrete anatomical sites. In the nostril, the distribution of Actinobacteria and Firmicutes was reminiscent of that of skin, though Proteobacteria were much less prevalent. The distribution of Firmicutes, Proteobacteria, and Bacteroidetes in the oropharynx was most similar to that in saliva, with more Proteobacteria than in the distal esophagus or mouth. While Firmicutes were prevalent at both sites, distinct families within this phylum dominated numerically in each. At both sites there was an inverse correlation between the prevalences of Firmicutes and another phylum: in the oropharynx, Firmicutes and Proteobacteria, and in the nostril, Firmicutes and ACTINOBACTERIA: In the nostril, this inverse correlation existed between the Firmicutes family Staphylococcaceae and Actinobacteria families, suggesting potential antagonism between these groups. IMPORTANCE The human nose and throat, though connected, contain distinct niches that are important sites of colonization by pathogenic bacteria. For many of these pathogens, colonization increases the risk of infection. Most research on the microbiota of nose and throat habitats has focused on carriage of one or a few pathogens. We hypothesized that increased knowledge of the composition of the complex bacterial communities in which these pathogens reside would provide new insights into why some individuals become colonized with pathogens, while others do not. Indeed, in the nostril microbiota of participants, there was an inverse correlation between the prevalences of the Staphylococcaceae family (Firmicutes), whose members include important pathogens, and the Corynebacteriaceae and Propionibacteriaceae families (both Actinobacteria), whose members are more commonly benign commensals. An improved understanding of competitive bacterial colonization will increase our ability to define predispositions to pathogen carriage at these sites and the subsequent risk of infection. IMPORTANCE: The human nose and throat, though connected, contain distinct niches that are important sites of colonization by pathogenic bacteria. For many of these pathogens, colonization increases the risk of infection. Most research on the microbiota of nose and throat habitats has focused on carriage of one or a few pathogens. We hypothesized that increased knowledge of the composition of the complex bacterial communities in which these pathogens reside would provide new insights into why some individuals become colonized with pathogens, while others do not. Indeed, in the nostril microbiota of participants, there was an inverse correlation between the prevalences of the Staphylococcaceae family (Firmicutes), whose members include important pathogens, and the Corynebacteriaceae and Propionibacteriaceae families (both Actinobacteria), whose members are more commonly benign commensals. An improved understanding of competitive bacterial colonization will increase our ability to define predispositions to pathogen carriage at these sites and the subsequent risk of infection. JF - mBio AU - Lemon, Katherine P AU - Klepac-Ceraj, Vanja AU - Schiffer, Hilary K AU - Brodie, Eoin L AU - Lynch, Susan V AU - Kolter, Roberto AD - Division of Infectious Diseases Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA Department of Microbiology and Molecular Genetics, Harvard Medical School, Boston, Massachusetts, USA Ecology Department, Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA Department of Medicine, Colitis and Crohn's Disease Center, University of California, San Francisco, California, USA Y1 - 2010/08/31/ PY - 2010 DA - 2010 Aug 31 SP - e00129 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 1 IS - 3 SN - 2150-7511, 2150-7511 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Esophagus KW - Skin KW - Pharynx KW - Oropharynx KW - Niches KW - Commensals KW - Firmicutes KW - Pathogens KW - Antagonism KW - Habitat KW - Infection KW - Corynebacteriaceae KW - Proteobacteria KW - Colonization KW - Actinobacteria KW - Propionibacteriaceae KW - Nose KW - Saliva KW - Mouth KW - rRNA 16S KW - Benign KW - A 01490:Miscellaneous KW - J 02400:Human Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/877602601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=mBio&rft.atitle=Comparative+Analyses+of+the+Bacterial+Microbiota+of+the+Human+Nostril+and+Oropharynx&rft.au=Lemon%2C+Katherine+P%3BKlepac-Ceraj%2C+Vanja%3BSchiffer%2C+Hilary+K%3BBrodie%2C+Eoin+L%3BLynch%2C+Susan+V%3BKolter%2C+Roberto&rft.aulast=Lemon&rft.aufirst=Katherine&rft.date=2010-08-31&rft.volume=1&rft.issue=3&rft.spage=e00129&rft.isbn=&rft.btitle=&rft.title=mBio&rft.issn=21507511&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2013-07-15 N1 - SubjectsTermNotLitGenreText - Esophagus; Oropharynx; Pharynx; Skin; Niches; Commensals; Antagonism; Pathogens; Infection; Habitat; Colonization; Nose; Saliva; Mouth; rRNA 16S; Benign; Actinobacteria; Propionibacteriaceae; Firmicutes; Corynebacteriaceae; Proteobacteria ER - TY - JOUR T1 - Development and optimization of an Agro-BGC ecosystem model for C4 perennial grasses AN - 759310639; 13207276 AB - Extrapolating simulations of bioenergy crop agro-ecosystems beyond data-rich sites requires biophysically accurate ecosystem models and careful estimation of model parameters not available in the literature. To increase biophysical accuracy we added C4 perennial grass functionality and agricultural practices to the Biome-BGC (BioGeochemical Cycles) ecosystem model. This new model, Agro-BGC, includes enzyme-driven C4 photosynthesis, individual live and dead leaf, stem, and root carbon and nitrogen pools, separate senescence and litter fall processes, fruit growth, optional annual seeding, flood irrigation, a growing degree day phenology with a killing frost option, and a disturbance handler that simulates nitrogen fertilization, harvest, fire, and incremental irrigation. To obtain spatially generalizable vegetation parameters we used a numerical method to optimize five unavailable parameters for Panicum virgatum (switchgrass) using biomass yield data from three sites: Mead, Nebraska, Rockspring, Pennsylvania, and Mandan, North Dakota. We then verified simulated switchgrass yields at three independent sites in Illinois (IL). Agro-BGC is more accurate than Biome-BGC in representing the physiology and dynamics of C4 grass and management practices associated with agro-ecosystems. The simulated two-year average mature yields with single-site Rockspring optimization have Root Mean Square Errors (RMSE) of 70, 152, and 162 and biases of 43, a87, 156gcarbonma2 for Shabbona, Urbana, and Simpson IL, respectively. The simulated annual yields in June, August, October, December, and February have RMSEs of 114, 390, and 185 and biases of a19, a258, and 147gcarbonma2 for Shabbona, Urbana, and Simpson IL, respectively. These RMSE and bias values are all within the largest 90% confidence interval around respective IL site measurements. Twenty-four of twenty-six simulated annual yields with Rockspring optimization are within 95% confidence intervals of Illinois site measurements during the mature fourth and fifth years of growth. Ten of eleven simulated two-year average mature yields with Rockspring optimization are within 65% confidence intervals of Illinois site measurements and the eleventh is within the 95% confidence interval. Rockspring optimized Agro-BGC achieves accuracies comparable to those of two previously published models: Agricultural Land Management Alternatives with Numerical Assessment Criteria (ALMANAC) and Integrated Farm System Model (IFSM). Agro-BGC suffers from static vegetation parameters that can change seasonally and as plants age. Using mature plant data for optimization mitigates this deficiency. Our results suggest that a multi-site optimization scheme using mature plant data from more sites would be adequate for generating spatially generalizable vegetation parameters for simulating mature bioenergy crop agro-ecosystems with Agro-BGC. JF - Ecological Modelling AU - Di Vittorio, Alan V AU - Anderson, Ryan S AU - White, Joseph D AU - Miller, Norman L AU - Running, Steven W AD - Energy Biosciences Institute, University of California, Berkeley and Earth Sciences Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, Mail Stop 90-1116, Berkeley, CA 94720-8126, United States Y1 - 2010/08/24/ PY - 2010 DA - 2010 Aug 24 SP - 2038 EP - 2053 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 221 IS - 17 SN - 0304-3800, 0304-3800 KW - Environment Abstracts; Sustainability Science Abstracts; Ecology Abstracts KW - Agro-BGC KW - Bioenergy KW - Biome-BGC KW - Carbon KW - Ecosystem model KW - Switchgrass KW - Panicum virgatum KW - Data processing KW - Mathematical models KW - USA, Illinois KW - Grasses KW - Physiology KW - Irrigation KW - biofuels KW - Vegetation KW - Ecosystem models KW - Crops KW - USA, North Dakota KW - Floods KW - farms KW - USA, Pennsylvania KW - USA, Nebraska KW - Plants KW - Nitrogen KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development KW - D 04030:Models, Methods, Remote Sensing UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759310639?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ecological+Modelling&rft.atitle=Development+and+optimization+of+an+Agro-BGC+ecosystem+model+for+C4+perennial+grasses&rft.au=Di+Vittorio%2C+Alan+V%3BAnderson%2C+Ryan+S%3BWhite%2C+Joseph+D%3BMiller%2C+Norman+L%3BRunning%2C+Steven+W&rft.aulast=Di+Vittorio&rft.aufirst=Alan&rft.date=2010-08-24&rft.volume=221&rft.issue=17&rft.spage=2038&rft.isbn=&rft.btitle=&rft.title=Ecological+Modelling&rft.issn=03043800&rft_id=info:doi/10.1016%2Fj.ecolmodel.2010.05.013 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Carbon; Mathematical models; Data processing; Grasses; Irrigation; Vegetation; Crops; Ecosystem models; Nitrogen; Floods; farms; Physiology; biofuels; Plants; Panicum virgatum; USA, North Dakota; USA, Illinois; USA, Pennsylvania; USA, Nebraska DO - http://dx.doi.org/10.1016/j.ecolmodel.2010.05.013 ER - TY - JOUR T1 - Continuity and performance in composite electrodes AN - 753752206; 13036307 AB - It is shown that the rate performance of a lithium battery composite electrode may be compromised by poor internal connectivity due to defects and inhomogeneities introduced during electrode fabrication or subsequent handling. Application of a thin conductive coating to the top surface of the electrode or to the separator surface in contact with the electrode improves the performance by providing alternative current paths to partially isolated particles of electroactive material. Mechanistic implications are discussed and strategies for improvement in electrode design and fabrication are presented. JF - Journal of Power Sources AU - Chen, Guoying AU - Richardson, Thomas J AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA gchen@lbl.gov Y1 - 2010/08/15/ PY - 2010 DA - 2010 Aug 15 SP - 5387 EP - 5390 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 16 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753752206?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Continuity+and+performance+in+composite+electrodes&rft.au=Chen%2C+Guoying%3BRichardson%2C+Thomas+J&rft.aulast=Chen&rft.aufirst=Guoying&rft.date=2010-08-15&rft.volume=195&rft.issue=16&rft.spage=5387&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2010.03.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2011-11-14 DO - http://dx.doi.org/10.1016/j.jpowsour.2010.03.012 ER - TY - JOUR T1 - Improved modeling and understanding of diffusion-media wettability on polymer-electrolyte-fuel-cell performance AN - 753752191; 13036295 AB - A macroscopic-modeling methodology to account for the chemical and structural properties of fuel-cell diffusion media is developed. A previous model is updated to include for the first time the use of experimentally measured capillary pressure-saturation relationships through the introduction of a Gaussian contact-angle distribution into the property equations. The updated model is used to simulate various limiting-case scenarios of water and gas transport in fuel-cell diffusion media. Analysis of these results demonstrate that interfacial conditions are more important than bulk transport in these layers, where the associated mass-transfer resistance is the result of higher capillary pressures at the boundaries and the steepness of the capillary pressure-saturation relationship. The model is also used to examine the impact of a microporous layer, showing that it dominates the response of the overall diffusion medium. In addition, its primary mass-transfer-related effect is suggested to be limiting the water-injection sites into the more porous gas-diffusion layer. JF - Journal of Power Sources AU - Weber, Adam Z AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, MS 70-108B, Berkeley, CA 94720, USA azweber@lbl.gov Y1 - 2010/08/15/ PY - 2010 DA - 2010 Aug 15 SP - 5292 EP - 5304 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 16 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753752191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Improved+modeling+and+understanding+of+diffusion-media+wettability+on+polymer-electrolyte-fuel-cell+performance&rft.au=Weber%2C+Adam+Z&rft.aulast=Weber&rft.aufirst=Adam&rft.date=2010-08-15&rft.volume=195&rft.issue=16&rft.spage=5292&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2010.03.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2011-11-14 DO - http://dx.doi.org/10.1016/j.jpowsour.2010.03.011 ER - TY - JOUR T1 - Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat AN - 954575631; 13674582 AB - Modeling studies show that the darkening of snow and ice by black carbon deposition is a major factor for the rapid disappearance of arctic sea ice, mountain glaciers and snow packs. This study provides one of the first direct measurements for the efficient removal of black carbon from the atmosphere by snow and its subsequent deposition to the snow packs of California. The early melting of the snow packs in the Sierras is one of the contributing factors to the severe water problems in California. BC concentrations in falling snow were measured at two mountain locations and in rain at a coastal site. All three stations reveal large BC concentrations in precipitation, ranging from 1.7 ng/g to 12.9 ng/g. The BC concentrations in the air after the snow fall were negligible suggesting an extremely efficient removal of BC by snow. The data suggest that below cloud scavenging, rather than ice nuclei, was the dominant source of BC in the snow. A five-year comparison of BC, dust, and total fine aerosol mass concentrations at multiple sites reveals that the measurements made at the sampling sites were representative of large scale deposition in the Sierra Nevada. The relative concentration of iron and calcium in the mountain aerosol indicates that one-quarter to one-third of the BC may have been transported from Asia. JF - Atmospheric Chemistry and Physics AU - Hadley, O L AU - Corrigan, CE AU - Kirchstetter, T W AU - Cliff, S S AU - Ramanathan, V AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2010/08/13/ PY - 2010 DA - 2010 Aug 13 SP - 7505 EP - 7513 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 10 IS - 15 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Atmospheric pollution models KW - Calcium KW - Scavenging by ice crystals KW - Mountains KW - Carbon KW - Arctic sea ice KW - INE, USA, California KW - Sea Ice KW - INW, Asia KW - Sampling KW - Marine KW - Aerosols KW - Ocean-ice-atmosphere system KW - Snow KW - Ice nuclei KW - Snow and ice KW - Precipitation KW - Dusts KW - USA, California, Sierra Nevada Mts. KW - PN, Arctic KW - Clouds KW - Sea ice KW - Atmospheric chemistry KW - Mountain glaciers KW - Deposition KW - Eolian dust KW - SW 5010:Network design KW - Q2 09188:Atmospheric chemistry KW - AQ 00006:Sewage KW - M2 551.326:Floating Ice (551.326) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/954575631?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Measured+black+carbon+deposition+on+the+Sierra+Nevada+snow+pack+and+implication+for+snow+pack+retreat&rft.au=Hadley%2C+O+L%3BCorrigan%2C+CE%3BKirchstetter%2C+T+W%3BCliff%2C+S+S%3BRamanathan%2C+V&rft.aulast=Hadley&rft.aufirst=O&rft.date=2010-08-13&rft.volume=10&rft.issue=15&rft.spage=7505&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-03-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Ocean-ice-atmosphere system; Sea ice; Aerosols; Calcium; Carbon; Snow; Ice nuclei; Atmospheric chemistry; Eolian dust; Clouds; Atmospheric pollution models; Scavenging by ice crystals; Arctic sea ice; Snow and ice; Mountain glaciers; Precipitation; Mountains; Sea Ice; Deposition; Sampling; Dusts; PN, Arctic; INE, USA, California; INW, Asia; USA, California, Sierra Nevada Mts.; Marine ER - TY - JOUR T1 - Strain-induced band gap modification in coherent core/shell nanostructures. AN - 748936563; 20698631 AB - Using first-principles calculations within density functional theory, we study the relative impacts of quantum confinement and strain on the electronic structure of two II-VI semiconductor compounds with a large lattice-mismatch, CdSe and CdTe, in core/shell nanowire geometries with different core radii and shell thicknesses. For fixed CdSe core radius, we find that the electronic band gap in the core is significantly reduced with increasing CdTe shell thickness, by an amount comparable to that expected from quantum confinement, due to the development of a large and highly anisotropic strain throughout the heterostructure. A straightforward analysis allows us to separate quantitatively changes in band gap due to quantum confinement and strain. Our studies elucidate and quantify the importance of strain in determining the electronic and optical properties of core/shell nanostructures. JF - Nano letters AU - Yang, Shenyuan AU - Prendergast, David AU - Neaton, Jeffrey B AD - Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA. Y1 - 2010/08/11/ PY - 2010 DA - 2010 Aug 11 SP - 3156 EP - 3162 VL - 10 IS - 8 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/748936563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nano+letters&rft.atitle=Strain-induced+band+gap+modification+in+coherent+core%2Fshell+nanostructures.&rft.au=Yang%2C+Shenyuan%3BPrendergast%2C+David%3BNeaton%2C+Jeffrey+B&rft.aulast=Yang&rft.aufirst=Shenyuan&rft.date=2010-08-11&rft.volume=10&rft.issue=8&rft.spage=3156&rft.isbn=&rft.btitle=&rft.title=Nano+letters&rft.issn=1530-6992&rft_id=info:doi/10.1021%2Fnl101999p LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-11-22 N1 - Date created - 2010-08-11 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1021/nl101999p ER - TY - JOUR T1 - Comparison of the oxidation state of Fe in comet 81P/Wild 2 and chondritic-porous interplanetary dust particles AN - 861988433; 2011-035856 AB - The fragile structure of chondritic-porous interplanetary dust particles (CP-IDPs) and their minimal parent-body alteration have led researchers to believe these particles originate in comets rather than asteroids where aqueous and thermal alterations have occurred. The solar elemental abundances and atmospheric entry speed of CP-IDPs also suggest a cometary origin. With the return of the Stardust samples from Jupiter-family comet 81P/Wild 2, this hypothesis can be tested. We have measured the Fe oxidation state of 15 CP-IDPs and 194 Stardust fragments using a synchrotron-based x-ray microprobe. We analyzed nearly equal 300 ng of Wild 2 material - three orders of magnitude more material than other analyses comparing Wild 2 and CP-IDPs. The Fe oxidation state of these two samples of material are >2sigma different: the CP-IDPs are more oxidized than the Wild 2 grains. We conclude that comet Wild 2 contains material that formed at a lower oxygen fugacity than the parent-body, or parent bodies, of CP-IDPs. If all Jupiter-family comets are similar, they do not appear to be consistent with the origin of CP-IDPs. However, comets that formed from a different mix of nebular material and are more oxidized than Wild 2 could be the source of CP-IDPs. JF - Earth and Planetary Science Letters AU - Ogliore, R C AU - Butterworth, A L AU - Fakra, S C AU - Gainsforth, Z AU - Marcus, M A AU - Westphal, A J Y1 - 2010/08// PY - 2010 DA - August 2010 SP - 278 EP - 286 PB - Elsevier, Amsterdam VL - 296 IS - 3-4 SN - 0012-821X, 0012-821X KW - alteration KW - thermal alteration KW - Stardust Mission KW - parent bodies KW - grain size KW - porous materials KW - interplanetary dust KW - chondritic composition KW - X-ray spectra KW - iron KW - XANES spectra KW - aqueous alteration KW - cosmic dust KW - comets KW - iron sulfides KW - metals KW - Wild Comet KW - spectra KW - sulfides KW - oxidation state KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861988433?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Comparison+of+the+oxidation+state+of+Fe+in+comet+81P%2FWild+2+and+chondritic-porous+interplanetary+dust+particles&rft.au=Ogliore%2C+R+C%3BButterworth%2C+A+L%3BFakra%2C+S+C%3BGainsforth%2C+Z%3BMarcus%2C+M+A%3BWestphal%2C+A+J&rft.aulast=Ogliore&rft.aufirst=R&rft.date=2010-08-01&rft.volume=296&rft.issue=3-4&rft.spage=278&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2010.05.011 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 52 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - alteration; aqueous alteration; chondritic composition; comets; cosmic dust; grain size; interplanetary dust; iron; iron sulfides; metals; oxidation state; parent bodies; porous materials; spectra; Stardust Mission; sulfides; thermal alteration; Wild Comet; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.epsl.2010.05.011 ER - TY - JOUR T1 - Uranium-series comminution ages of continental sediments; case study of a Pleistocene alluvial fan AN - 861986419; 2011-035853 AB - Obtaining quantitative information about the timescales associated with sediment transport, storage, and deposition in continental settings is important but challenging. The uranium-series comminution age method potentially provides a universal approach for direct dating of Quaternary detrital sediments, and can also provide estimates of the sediment transport and storage timescales. (The word "comminution" means "to reduce to powder," reflecting the start of the comminution age clock as reduction of lithic parent material below a critical grain size threshold of nearly equal 50 mu m.) To test the comminution age method as a means to date continental sediments, we applied the method to drill-core samples of the glacially-derived Kings River Fan alluvial deposits in central California. Sediments from the 45 m core have independently-estimated depositional ages of up to nearly equal 800 ka, based on paleomagnetism and correlations to nearby dated sediments. We characterized sequentially-leached core samples (both bulk sediment and grain size separates) for U, Nd, and Sr isotopes, grain size, surface texture, and mineralogy. In accordance with the comminution age model, where (super 234) U is partially lost from small sediment grains due to alpha recoil, we found that ( (super 234) U/ (super 238) U) activity ratios generally decrease with age, depth, and specific surface area, with depletions of up to 9% relative to radioactive equilibrium. The resulting calculated comminution ages are reasonable, although they do not exactly match age estimates from previous studies and also depend on assumptions about (super 234) U loss rates. The results indicate that the method may be a significant addition to the sparse set of available tools for dating detrital continental sediments, following further refinement. Improving the accuracy of the method requires more advanced models or measurements for both the recoil loss factor f (sub alpha ) and weathering effects. We discuss several independent methods for obtaining f (sub alpha ) on individual samples that may be useful for future studies. JF - Earth and Planetary Science Letters AU - Lee, Victoria E AU - DePaolo, Donald J AU - Christensen, John N Y1 - 2010/08// PY - 2010 DA - August 2010 SP - 244 EP - 254 PB - Elsevier, Amsterdam VL - 296 IS - 3-4 SN - 0012-821X, 0012-821X KW - United States KW - Sierra Nevada KW - Kings River fan KW - Quaternary KW - sediment transport KW - grain size KW - Central California KW - weathering KW - uranium disequilibrium KW - Cenozoic KW - California KW - comminution KW - transport KW - deposition KW - dates KW - alluvial fans KW - age KW - sediments KW - parent materials KW - absolute age KW - terrigenous materials KW - Pleistocene KW - leaching KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861986419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Earth+and+Planetary+Science+Letters&rft.atitle=Uranium-series+comminution+ages+of+continental+sediments%3B+case+study+of+a+Pleistocene+alluvial+fan&rft.au=Lee%2C+Victoria+E%3BDePaolo%2C+Donald+J%3BChristensen%2C+John+N&rft.aulast=Lee&rft.aufirst=Victoria&rft.date=2010-08-01&rft.volume=296&rft.issue=3-4&rft.spage=244&rft.isbn=&rft.btitle=&rft.title=Earth+and+Planetary+Science+Letters&rft.issn=0012821X&rft_id=info:doi/10.1016%2Fj.epsl.2010.05.005 L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 61 N1 - Document feature - illus. incl. strat. col., 2 tables, sketch map N1 - SuppNotes - Supplementary data available in online version N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - absolute age; age; alluvial fans; California; Cenozoic; Central California; comminution; dates; deposition; grain size; Kings River fan; leaching; parent materials; Pleistocene; Quaternary; sediment transport; sediments; Sierra Nevada; terrigenous materials; transport; United States; uranium disequilibrium; weathering DO - http://dx.doi.org/10.1016/j.epsl.2010.05.005 ER - TY - JOUR T1 - Mass spectrometry-based metabolomics, analysis of metabolite-protein interactions, and imaging AN - 860382879; 14538325 AB - Our understanding of biology has been greatly improved through recent developments in mass spectrometry, which is providing detailed information on protein and metabolite composition as well as protein-metabolite interactions. The high sensitivity and resolution of mass spectrometry achieved with liquid or gas chromatography allows for detection and quantification of hundreds to thousands of molecules in a single measurement. Where homogenization-based sample preparation and extraction methods result in a loss of spatial information, mass spectrometry imaging technologies provide tlie in situ distribution profiles of metabolites and proteins within tissues. Mass spectrometry-based analysis of metabolite abundance, protein-metabolite interactions, and spatial distribution of compounds facilitates the high-throughput screening of biochemical reactions, the reconstruction of metabolic networks, biomarker discovery, determination of tissue compositions, and functional annotation of both proteins and metabolites. JF - BioTechniques AU - Lee, D Y AU - Bowen, B P AU - Northen, T R AD - Department of GTL Bioenergy and Structural Biology, Life Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA, trnorthen@lbl.gov Y1 - 2010/08// PY - 2010 DA - August 2010 SP - 557 EP - 565 PB - Eaton Publishing Co., One Research Drive, Suite 400A PO Box 1070 Westboro MA 01581 USA VL - 49 IS - 2 SN - 0736-6205, 0736-6205 KW - Biotechnology and Bioengineering Abstracts KW - Spatial distribution KW - Gas chromatography KW - metabolic networks KW - Protein composition KW - Metabolites KW - spatial discrimination KW - high-throughput screening KW - imaging KW - biomarkers KW - Mass spectroscopy KW - metabolomics KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/860382879?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BioTechniques&rft.atitle=Mass+spectrometry-based+metabolomics%2C+analysis+of+metabolite-protein+interactions%2C+and+imaging&rft.au=Lee%2C+D+Y%3BBowen%2C+B+P%3BNorthen%2C+T+R&rft.aulast=Lee&rft.aufirst=D&rft.date=2010-08-01&rft.volume=49&rft.issue=2&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=BioTechniques&rft.issn=07366205&rft_id=info:doi/10.2144%2F000113451 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-04-01 N1 - Last updated - 2016-04-29 N1 - SubjectsTermNotLitGenreText - Spatial distribution; Gas chromatography; metabolic networks; Protein composition; high-throughput screening; spatial discrimination; Metabolites; biomarkers; imaging; metabolomics; Mass spectroscopy DO - http://dx.doi.org/10.2144/000113451 ER - TY - JOUR T1 - Spectral induced polarization signatures of abiotic FeS precipitation AN - 853221443; 2011-020007 AB - In recent years, geophysical methods have been shown to be sensitive to microbial-induced mineralization processes. The spectral induced-polarization (SIP) method appears to be very promising for monitoring mineralization and microbial processes. With this work, we study the links of mineralization and SIP signals, in the absence of microbial activity. We recorded the SIP response during abiotic FeS precipitation. We show that the SIP signals are diagnostic of FeS mineralization and can be differentiated from SIP signals from biomineralization processes. More specifically, the imaginary conductivity shows almost linear dependence on the amount of FeS precipitating out of solution, above the threshold value 0.006 gr under our experimental conditions. This research has direct implications for the use of the SIP method as a monitoring and decision-making tool for sustainable remediation of metals in contaminated soils and groundwater. JF - Geophysics AU - Ntarlagiannis, Dimitrios AU - Doherty, Rory AU - Williams, Kenneth H Y1 - 2010/08// PY - 2010 DA - August 2010 SP - F127 EP - F133 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 75 IS - 4 SN - 0016-8033, 0016-8033 KW - soils KW - biomineralization KW - numerical analysis KW - geophysical methods KW - electrical methods KW - pollution KW - techniques KW - bioremediation KW - environmental analysis KW - remediation KW - ground water KW - biogenic processes KW - chemical reactions KW - soil pollution KW - precipitation KW - induced polarization KW - pyrite KW - applications KW - water pollution KW - sulfides KW - instruments KW - heavy metals KW - microorganisms KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853221443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Spectral+induced+polarization+signatures+of+abiotic+FeS+precipitation&rft.au=Ntarlagiannis%2C+Dimitrios%3BDoherty%2C+Rory%3BWilliams%2C+Kenneth+H&rft.aulast=Ntarlagiannis&rft.aufirst=Dimitrios&rft.date=2010-08-01&rft.volume=75&rft.issue=4&rft.spage=F127&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3467759 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 29 N1 - PubXState - OK N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-06-13 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - applications; biogenic processes; biomineralization; bioremediation; chemical reactions; electrical methods; environmental analysis; geophysical methods; ground water; heavy metals; induced polarization; instruments; microorganisms; numerical analysis; pollution; precipitation; pyrite; remediation; soil pollution; soils; sulfides; techniques; water pollution DO - http://dx.doi.org/10.1190/1.3467759 ER - TY - JOUR T1 - Isotopic anomalies in organic nanoglobules from Comet 81P/Wild 2; comparison to Murchison nanoglobules and isotopic anomalies induced in terrestrial organics by electron irradiation AN - 759304342; 2010-088675 AB - Nanoglobules are a form of organic matter found in interplanetary dust particles and primitive meteorites and are commonly associated with (super 15) N and D isotopic anomalies that are suggestive of interstellar processes. We report the discovery of two isotopically-anomalous organic globules from the Stardust collection of particles from Comet 81P/Wild 2 and compare them with nanoglobules from the Murchison CM2 meteorite. One globule from Stardust Cometary Track 80 contains highly aromatic organic matter and a large (super 15) N anomaly (delta (super 15) N=1120 ppm). Associated, non-globular, organic matter from this track is less enriched in (super 15) N and contains a mixture of aromatic and oxidized carbon similar to bulk insoluble organic material (IOM) from primitive meteorites. The second globule, from Cometary Track 2, contains non-aromatic organic matter with abundant nitrile (-C triple bond N) and carboxyl (-COOH) functional groups. It is significantly enriched in D (delta D=1000 ppm) but has a terrestrial (super 15) N/ (super 14) N ratio. Experiments indicate that similar D enrichments, unaccompanied by (super 15) N fractionation, can be reproduced in the laboratory by electron irradiation of epoxy or cyanoacrylate. Thus, a terrestrial origin for this globule cannot be ruled out, and, conversely, exposure to high-energy electron irradiation in space may be an important factor in producing D anomalies in organic materials. For comparison, we report two Murchison globules: one with a large (super 15) N enrichment and highly aromatic chemistry analogous to the Track 80 globule and the other only moderately enriched in (super 15) N with IOM-like chemistry. The observation of organic globules in Comet 81P/Wild 2 indicates that comets likely sampled the same reservoirs of organic matter as did the chondrite parent bodies. The observed isotopic anomalies in the globules are most likely preserved signatures of low temperature (<10 K) chemistry in the interstellar medium or perhaps the outer regions of the solar nebula. In other extraterrestrial samples, D isotopic anomalies, but not those of (super 15) N, may be explained in part by exposure to ionizing electron radiation. JF - Geochimica et Cosmochimica Acta AU - De Gregorio, B T AU - Stroud, R M AU - Nittler, L R AU - Alexander, C M O'D AU - Kilcoyne, A L D AU - Zega, T J Y1 - 2010/08// PY - 2010 DA - August 2010 SP - 4454 EP - 4470 PB - Elsevier, New York, NY VL - 74 IS - 15 SN - 0016-7037, 0016-7037 KW - irradiation KW - stony meteorites KW - ion probe data KW - isotopes KW - enrichment KW - mass spectra KW - stable isotopes KW - nitrogen KW - Murchison Meteorite KW - XANES spectra KW - meteorites KW - geochemical anomalies KW - Wild Comet KW - spectra KW - chondrites KW - chemical composition KW - geochemistry KW - electrons KW - experimental studies KW - N-15/N-14 KW - Stardust Mission KW - isotope ratios KW - biochemistry KW - cosmochemistry KW - carbonaceous chondrites KW - X-ray spectra KW - TEM data KW - organic compounds KW - comets KW - CM chondrites KW - nanoparticles KW - 05B:Petrology of meteorites and tektites KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759304342?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Isotopic+anomalies+in+organic+nanoglobules+from+Comet+81P%2FWild+2%3B+comparison+to+Murchison+nanoglobules+and+isotopic+anomalies+induced+in+terrestrial+organics+by+electron+irradiation&rft.au=De+Gregorio%2C+B+T%3BStroud%2C+R+M%3BNittler%2C+L+R%3BAlexander%2C+C+M+O%27D%3BKilcoyne%2C+A+L+D%3BZega%2C+T+J&rft.aulast=De+Gregorio&rft.aufirst=B&rft.date=2010-08-01&rft.volume=74&rft.issue=15&rft.spage=4454&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2010.05.010 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 95 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Wild Comet; biochemistry; carbonaceous chondrites; chemical composition; chondrites; CM chondrites; comets; cosmochemistry; electrons; enrichment; experimental studies; geochemical anomalies; geochemistry; ion probe data; irradiation; isotope ratios; isotopes; mass spectra; meteorites; Murchison Meteorite; N-15/N-14; nanoparticles; nitrogen; organic compounds; spectra; stable isotopes; Stardust Mission; stony meteorites; TEM data; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.gca.2010.05.010 ER - TY - JOUR T1 - Dissolution kinetics of calcite at 50-70 degrees C; an atomic force microscopic study under near-equilibrium conditions AN - 759303201; 2010-088663 AB - Direct measurements of calcite (1014) faces were performed using in situ atomic force microscopy (AFM) to reveal the dissolution processes as a function of solution saturation state and temperature. Time-sequential AFM images demonstrated that step velocities at constant temperature increased with increasing undersaturation. The anisotropy of obtuse and acute step velocities appeared to become more significant as solutions approached equilibrium and temperature increased. At saturation state Omega >0.02, a curvilinear boundary was formed at the intersection of two acute steps and the initially rhombohedral etch pit exhibited a nearly triangular shape. This suggests that the [441] (sub a) and [481] (sub a) steps may not belong to the calcite-aqueous solution equilibrium system. Further increase in the saturation state (Omega > or =0.3) led to a lack of etch pit formation and dissolution primarily occurred at existing steps, in accordance with Teng (2004). Analysis of step kinetics at different temperatures yielded activation energies of 25 + or - 6 kJ/mol and 14 + or - 13 kJ/mol for obtuse and acute steps, respectively. The inconsistencies in etch pit morphology, step anisotropy, and step activation energies from the present study with those of studies far-from-equilibrium can be explained by increased influence of the backward reaction, or growth, near-equilibrium. We propose that the backward reaction occurs preferentially at the acute-acute kink sites. The kinetics and effective activation energies of near-equilibrium calcite dissolution presented in this work provide accurate experimental data under likely CO (sub 2) sequestration conditions, and thus are crucial to the development of robust geochemical models that predict the long-term performance of mineral-trapped CO (sub 2) . JF - Geochimica et Cosmochimica Acta AU - Xu, M AU - Hu, X M AU - Knauss, K G AU - Higgins, S R Y1 - 2010/08// PY - 2010 DA - August 2010 SP - 4285 EP - 4297 PB - Elsevier, New York, NY VL - 74 IS - 15 SN - 0016-7037, 0016-7037 KW - carbon sequestration KW - solution KW - temperature KW - reservoir rocks KW - carbon dioxide KW - calcite KW - models KW - activation energy KW - atomic force microscopy data KW - saturation KW - phase equilibria KW - low temperature KW - crystal chemistry KW - kinetics KW - geochemistry KW - carbonates KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759303201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Dissolution+kinetics+of+calcite+at+50-70+degrees+C%3B+an+atomic+force+microscopic+study+under+near-equilibrium+conditions&rft.au=Xu%2C+M%3BHu%2C+X+M%3BKnauss%2C+K+G%3BHiggins%2C+S+R&rft.aulast=Xu&rft.aufirst=M&rft.date=2010-08-01&rft.volume=74&rft.issue=15&rft.spage=4285&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2010.04.066 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 61 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - activation energy; atomic force microscopy data; calcite; carbon dioxide; carbon sequestration; carbonates; crystal chemistry; geochemistry; kinetics; low temperature; models; phase equilibria; reservoir rocks; saturation; solution; temperature DO - http://dx.doi.org/10.1016/j.gca.2010.04.066 ER - TY - JOUR T1 - Iron traffics in circulation bound to a siderocalin (Ngal)-catechol complex AN - 754531851; 13228148 AB - The lipocalins are secreted proteins that bind small organic molecules. Scn-Ngal (also known as neutrophil gelatinase associated lipocalin, siderocalin, lipocalin 2) sequesters bacterial iron chelators, called siderophores, and consequently blocks bacterial growth. However, Scn-Ngal is also prominently expressed in aseptic diseases, implying that it binds additional ligands and serves additional functions. Using chemical screens, crystallography and fluorescence methods, we report that Scn-Ngal binds iron together with a small metabolic product called catechol. The formation of the complex blocked the reactivity of iron and permitted its transport once introduced into circulation in vivo. Scn-Ngal then recycled its iron in endosomes by a pH-sensitive mechanism. As catechols derive from bacterial and mammalian metabolism of dietary compounds, the Scn-Ngal-catechol-Fe(III) complex represents an unforeseen microbial-host interaction, which mimics Scn-Ngal-siderophore interactions but instead traffics iron in aseptic tissues. These results identify an endogenous siderophore, which may link the disparate roles of Scn-Ngal in different diseases. JF - Nature Chemical Biology AU - Bao, Guanhu AU - Clifton, Matthew AU - Hoette, Trisha M AU - Mori, Kiyoshi AU - Deng, Shi-Xian AU - Qiu, Andong AU - Viltard, Melanie AU - Williams, David AU - Paragas, Neal AU - Leete, Thomas AU - Kulkarni, Ritwij AU - Li, Xiangpo AU - Lee, Belinda AU - Kalandadze, Avtandil AU - Ratner, Adam J AU - Pizarro, Juan Carlos AU - Schmidt-Ott, Kai M AU - Landry, Donald W AU - Raymond, Kenneth N AU - Strong, Roland K AU - Barasch, Jonathan AD - [1] Department of Chemistry, University of California, Berkeley, California, USA. [2] Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2010/08// PY - 2010 DA - Aug 2010 SP - 602 EP - 609 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 6 IS - 8 SN - 1552-4450, 1552-4450 KW - Microbiology Abstracts B: Bacteriology KW - Fluorescence KW - Gelatinase KW - Leukocytes (neutrophilic) KW - Chelating agents KW - Catechol KW - Traffic KW - Siderophores KW - endosomes KW - Crystallography KW - Lipocalin KW - pH effects KW - Iron KW - Metabolism KW - J 02410:Animal Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754531851?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Chemical+Biology&rft.atitle=Iron+traffics+in+circulation+bound+to+a+siderocalin+%28Ngal%29-catechol+complex&rft.au=Bao%2C+Guanhu%3BClifton%2C+Matthew%3BHoette%2C+Trisha+M%3BMori%2C+Kiyoshi%3BDeng%2C+Shi-Xian%3BQiu%2C+Andong%3BViltard%2C+Melanie%3BWilliams%2C+David%3BParagas%2C+Neal%3BLeete%2C+Thomas%3BKulkarni%2C+Ritwij%3BLi%2C+Xiangpo%3BLee%2C+Belinda%3BKalandadze%2C+Avtandil%3BRatner%2C+Adam+J%3BPizarro%2C+Juan+Carlos%3BSchmidt-Ott%2C+Kai+M%3BLandry%2C+Donald+W%3BRaymond%2C+Kenneth+N%3BStrong%2C+Roland+K%3BBarasch%2C+Jonathan&rft.aulast=Bao&rft.aufirst=Guanhu&rft.date=2010-08-01&rft.volume=6&rft.issue=8&rft.spage=602&rft.isbn=&rft.btitle=&rft.title=Nature+Chemical+Biology&rft.issn=15524450&rft_id=info:doi/10.1038%2Fnchembio.402 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Gelatinase; Fluorescence; Leukocytes (neutrophilic); Chelating agents; Siderophores; Traffic; Catechol; endosomes; Crystallography; Lipocalin; Iron; pH effects; Metabolism DO - http://dx.doi.org/10.1038/nchembio.402 ER - TY - JOUR T1 - In situ measurements of stress evolution in silicon thin films during electrochemical lithiation and delithiation AN - 753746374; 12985273 AB - We report in situ measurements of stress evolution in a silicon thin-film electrode during electrochemical lithiation and delithiation by using the multi-beam optical sensor (MOS) technique. Upon lithiation, due to substrate constraint, the silicon electrode initially undergoes elastic deformation, resulting in rapid rise of compressive stress. The electrode begins to deform plastically at a compressive stress of ca. -1.75 GPa; subsequent lithiation results in continued plastic strain, dissipating mechanical energy. Upon delithiation, the electrode first undergoes elastic straining in the opposite direction, leading to a tensile stress of ca. 1 GPa; subsequently, it deforms plastically during the rest of delithiation. The plastic flow stress evolves continuously with lithium concentration. Thus, mechanical energy is dissipated in plastic deformation during both lithiation and delithiation, and it can be calculated from the stress measurements; we show that it is comparable to the polarization loss. Upon current interruption, both the film stress and the electrode potential relax with similar time constants, suggesting that stress contributes significantly to the chemical potential of lithiated silicon. JF - Journal of Power Sources AU - Sethuraman, Vijay A AU - Chon, Michael J AU - Shimshak, Maxwell AU - Srinivasan, Venkat AU - Guduru, Pradeep R AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8168, USA Y1 - 2010/08/01/ PY - 2010 DA - 2010 Aug 01 SP - 5062 EP - 5066 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 15 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753746374?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=In+situ+measurements+of+stress+evolution+in+silicon+thin+films+during+electrochemical+lithiation+and+delithiation&rft.au=Sethuraman%2C+Vijay+A%3BChon%2C+Michael+J%3BShimshak%2C+Maxwell%3BSrinivasan%2C+Venkat%3BGuduru%2C+Pradeep+R&rft.aulast=Sethuraman&rft.aufirst=Vijay&rft.date=2010-08-01&rft.volume=195&rft.issue=15&rft.spage=5062&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2010.02.013 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2011-11-14 DO - http://dx.doi.org/10.1016/j.jpowsour.2010.02.013 ER - TY - JOUR T1 - Progress in metal-supported solid oxide fuel cells: A review AN - 753745711; 12985205 AB - Metal-supported solid oxide fuel cells provide significant advantages over conventional ceramic cells, including low materials cost, ruggedness, and tolerance to rapid thermal cycling and redox cycling. Various metal-supported cell designs have been developed, utilizing a range of electrolyte, electrode, and support materials prepared by various fabrication and deposition techniques. This paper reviews the current state of metal-supported cell technology and suggests opportunities for further development. JF - Journal of Power Sources AU - Tucker, Michael C AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, MS 62-203, Berkeley, CA 94720, United States mctucker@lbl.gov Y1 - 2010/08/01/ PY - 2010 DA - 2010 Aug 01 SP - 4570 EP - 4582 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 15 SN - 0378-7753, 0378-7753 KW - Ceramic Abstracts/World Ceramics Abstracts (WC); Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753745711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Progress+in+metal-supported+solid+oxide+fuel+cells%3A+A+review&rft.au=Tucker%2C+Michael+C&rft.aulast=Tucker&rft.aufirst=Michael&rft.date=2010-08-01&rft.volume=195&rft.issue=15&rft.spage=4570&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2010.02.035 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2011-11-14 DO - http://dx.doi.org/10.1016/j.jpowsour.2010.02.035 ER - TY - JOUR T1 - Analysis of energy-efficiency opportunities for the cement industry in Shandong Province, China: A case study of 16 cement plants AN - 753686931; 13257473 AB - In this study, 16 cement plants with New Suspension Preheater and pre-calciner (NSP) kiln were surveyed. Plant energy use was compared to both domestic (Chinese) and international best practice using the Benchmarking and Energy Saving Tool for Cement (BEST-Cement). This benchmarking exercise indicated an average technical potential primary energy savings of 12% would be possible if the surveyed plants operated at domestic best practice levels in terms of energy use per ton of cement produced. Average technical potential primary energy savings of 23% would be realized if the plants operated at international best practice levels. Then, using the bottom-up Electricity Conservation Supply Curve (ECSC) model, the cost-effective electricity efficiency potential for the 16 studied cement plants in 2008 is estimated to be 373 gigawatt-hours (GWh), and total technical electricity-saving potential is 915 GWh, which accounts for 16 and 40% of total electricity use in the studied plants in 2008, respectively. The Fuel Conservation Supply Curve (FCSC) model shows the total technical fuel efficiency potential equal to 7949 terajoules (TJ), accounting for 8% of total fuel used in the studied cement plants in 2008. All the fuel efficiency potential is shown to be cost effective. JF - Energy AU - Hasanbeigi, Ali AU - Price, Lynn AU - Lu, Hongyou AU - Lan, Wang AD - China Energy Group, Energy Analysis Department, Environmental Energy Technologies Division, Ernest Orlando Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90R4000, Berkeley, CA 94720, USA, AHasanbeigi@lbl.gov Y1 - 2010/08// PY - 2010 DA - Aug 2010 SP - 3461 EP - 3473 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 35 IS - 8 SN - 0360-5442, 0360-5442 KW - Sustainability Science Abstracts; Environment Abstracts KW - Energy-efficiency technologies KW - Benchmarking KW - Conservation supply curve KW - Cement industry KW - case studies KW - best practices KW - Cement KW - China, People's Rep., Shandong Prov. KW - Fuels KW - Economics KW - Energy conservation KW - Conservation KW - Energy consumption KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753686931?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy&rft.atitle=Analysis+of+energy-efficiency+opportunities+for+the+cement+industry+in+Shandong+Province%2C+China%3A+A+case+study+of+16+cement+plants&rft.au=Hasanbeigi%2C+Ali%3BPrice%2C+Lynn%3BLu%2C+Hongyou%3BLan%2C+Wang&rft.aulast=Hasanbeigi&rft.aufirst=Ali&rft.date=2010-08-01&rft.volume=35&rft.issue=8&rft.spage=3461&rft.isbn=&rft.btitle=&rft.title=Energy&rft.issn=03605442&rft_id=info:doi/10.1016%2Fj.energy.2010.04.046 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - case studies; best practices; Cement; Fuels; Economics; Energy conservation; Conservation; Energy consumption; China, People's Rep., Shandong Prov. DO - http://dx.doi.org/10.1016/j.energy.2010.04.046 ER - TY - JOUR T1 - Fuzzy-probabilistic calculations of water-balance uncertainty AN - 753675297; 13223862 AB - Hydrogeological systems are often characterized by imprecise, vague, inconsistent, incomplete, or subjective information, which may limit the application of conventional stochastic methods in predicting hydrogeologic conditions and associated uncertainty. Instead, predictions and uncertainty analysis can be made using uncertain input parameters expressed as probability boxes, intervals, and fuzzy numbers. The objective of this paper is to present the theory for, and a case study as an application of, the fuzzy-probabilistic approach, combining probability and possibility theory for simulating soil water balance and assessing associated uncertainty in the components of a simple water-balance equation. The application of this approach is demonstrated using calculations with the RAMAS Risk Calc code, to assess the propagation of uncertainty in calculating potential evapotranspiration, actual evapotranspiration, and infiltration-in a case study at the Hanford site, Washington, USA. Propagation of uncertainty into the results of water-balance calculations was evaluated by changing the types of models of uncertainty incorporated into various input parameters. The results of these fuzzy-probabilistic calculations are compared to the conventional Monte Carlo simulation approach and estimates from field observations at the Hanford site. JF - Stochastic Environmental Research and Risk Assessment AU - Faybishenko, Boris AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90-1116, Berkeley, CA, 94720, USA, bafaybishenko@lbl.gov Y1 - 2010/08// PY - 2010 DA - Aug 2010 SP - 939 EP - 952 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 24 IS - 6 SN - 1436-3240, 1436-3240 KW - Risk Abstracts KW - case studies KW - Monte Carlo simulation KW - Soil KW - Risk assessment KW - USA, Washington KW - Evapotranspiration KW - water balance KW - USA, Washington, Hanford Site KW - R2 23050:Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753675297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Stochastic+Environmental+Research+and+Risk+Assessment&rft.atitle=Fuzzy-probabilistic+calculations+of+water-balance+uncertainty&rft.au=Faybishenko%2C+Boris&rft.aulast=Faybishenko&rft.aufirst=Boris&rft.date=2010-08-01&rft.volume=24&rft.issue=6&rft.spage=939&rft.isbn=&rft.btitle=&rft.title=Stochastic+Environmental+Research+and+Risk+Assessment&rft.issn=14363240&rft_id=info:doi/10.1007%2Fs00477-010-0379-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Risk assessment; Soil; Monte Carlo simulation; case studies; Evapotranspiration; water balance; USA, Washington; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1007/s00477-010-0379-y ER - TY - JOUR T1 - Financial impact of energy efficiency under a federal combined efficiency and renewable electricity standard: Case study of a Kansas 'super-utility' AN - 742957286; 2010-535684 AB - Historically, local, state and federal policies have separately promoted the generation of electricity from renewable technologies and the pursuit of energy efficiency to help mitigate the detrimental effects of global climate change and foster energy independence. Federal policymakers are currently considering and several states have enacted a combined efficiency and renewable electricity standard which proponents argue provides a comprehensive approach with greater flexibility and at lower cost. We examine the financial impacts on various stakeholders from alternative compliance strategies with a Combined Efficiency and Renewable Electricity Standard (CERES) using a case study approach for utilities in Kansas. Our results suggest that an investor-owned utility is likely to pursue the most lucrative compliance strategy for its shareholders-one that under-invests in energy efficiency resources. If a business model for energy efficiency inclusive of both a lost fixed cost recovery mechanism and a shareholder incentive mechanism is implemented, our analysis indicates that an investor-owned utility would be more willing to pursue energy efficiency as a lower-cost CERES compliance strategy. Absent implementing such a regulatory mechanism, separate energy efficiency and renewable portfolio standards would improve the likelihood of reducing reliance on fossil fuels at least-cost through the increased pursuit of energy efficiency. [Copyright Elsevier Ltd.] JF - Energy Policy AU - Cappers, Peter AU - Goldman, Charles AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Mailstop 90R4000, Berkeley, CA 94720, USA Y1 - 2010/08// PY - 2010 DA - August 2010 SP - 3998 EP - 4010 PB - Elsevier, UK VL - 38 IS - 8 SN - 0301-4215, 0301-4215 KW - Energy resources and policy - Renewable energy sources KW - Banking and public and private finance - Public finance KW - Energy resources and policy - Electric power KW - Energy efficiency Renewable energy Public policy KW - Electric power KW - Kansas KW - Fossil fuels KW - Global warming KW - Standards KW - Subsidies KW - Technology KW - Renewable energy sources KW - article UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742957286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apais&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Policy&rft.atitle=Financial+impact+of+energy+efficiency+under+a+federal+combined+efficiency+and+renewable+electricity+standard%3A+Case+study+of+a+Kansas+%27super-utility%27&rft.au=Cappers%2C+Peter%3BGoldman%2C+Charles&rft.aulast=Cappers&rft.aufirst=Peter&rft.date=2010-08-01&rft.volume=38&rft.issue=8&rft.spage=3998&rft.isbn=&rft.btitle=&rft.title=Energy+Policy&rft.issn=03014215&rft_id=info:doi/10.1016%2Fj.enpol.2010.03.024 LA - English DB - PAIS Index N1 - Date revised - 2010-06-07 N1 - Last updated - 2016-09-28 N1 - SubjectsTermNotLitGenreText - Renewable energy sources; Kansas; Subsidies; Electric power; Standards; Global warming; Fossil fuels; Technology DO - http://dx.doi.org/10.1016/j.enpol.2010.03.024 ER - TY - JOUR T1 - On enumeration of congeners of common persistent organic pollutants AN - 1671538995; 13218022 AB - Congeners are molecules based on the same carbon skeleton but different by the number of substituents and/or a substitution pattern. Various Persistent Organic Pollutants (POPs) exist in the environment as families of halogen substituted congeners and/or their hydroxyl and methoxy substituted derivatives. Numbers of possible congeners resulting from substitution of a parent POP molecule with only one type of chemical group are generally available. At the same time, numbers of mixed-substituent congeners have not been counted and presented yet, although there is an increasing interest in such as is the increasing number of research articles presenting results on already identified Cla/Bramixed type congeners and/or their HO-/CH3O-mixed metabolites. We have enumerated and counted possible mixed-substituent congeners of common POPs. This article presents the obtained numbers for congener families of benzene, naphthalene, biphenyl, diphenyl ether, dibenzo-p-dioxin, dibenzofuran, anthracene, pyrene and others and obtained by substitution of up to five chemical group types. This article presents the results of enumeration of congeners of common organic pollutants obtained by substitution of up to five chemical group types. JF - Environmental Pollution AU - Haranczyk, Maciej AU - Puzyn, Tomasz AU - Ng, Esmond G AD - Computational Research Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, Mail Stop 50F-1650, Berkeley, CA 94720-8139, USA Y1 - 2010/08// PY - 2010 DA - August 2010 SP - 2786 EP - 2789 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 158 IS - 8 SN - 0269-7491, 0269-7491 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Congeners KW - Persistent organic pollutants KW - Derivatives KW - Carbon KW - Pollutants KW - Halogens KW - Pollution abatement KW - Ethers KW - Enumeration KW - Parents UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671538995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Pollution&rft.atitle=On+enumeration+of+congeners+of+common+persistent+organic+pollutants&rft.au=Haranczyk%2C+Maciej%3BPuzyn%2C+Tomasz%3BNg%2C+Esmond+G&rft.aulast=Haranczyk&rft.aufirst=Maciej&rft.date=2010-08-01&rft.volume=158&rft.issue=8&rft.spage=2786&rft.isbn=&rft.btitle=&rft.title=Environmental+Pollution&rft.issn=02697491&rft_id=info:doi/10.1016%2Fj.envpol.2010.05.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-11-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.envpol.2010.05.011 ER - TY - JOUR T1 - Sky brightness and transparency in the i-band at Dome A, Antarctica AN - 1371761009; 2013-048679 AB - The i-band observing conditions at Dome A on the Antarctic plateau have been investigated using data acquired during 2008 with the Chinese Small Telescope Array. The sky brightness, variations in atmospheric transparency, cloud cover, and the presence of aurorae are obtained from these images. The median sky brightness of moonless clear nights is 20.5 mag arcsec (super -2) in the SDSS i band at the south celestial pole (which includes a contribution of about 0.06 mag from diffuse Galactic light). The median over all Moon phases in the Antarctic winter is about 19.8 mag arcsec (super -2) . There were no thick clouds in 2008. We model contributions of the Sun and the Moon to the sky background to obtain the relationship between the sky brightness and transparency. Aurorae are identified by comparing the observed sky brightness to the sky brightness expected from this model. About 2% of the images are affected by relatively strong aurorae. Copyright (Copyright) 2010. The American Astronomical Society. All rights reserved. JF - The Astronomical Journal (New York) AU - Zou, Hu AU - Zhou, Xu AU - Jiang, Zhaoji AU - Ashley, M C B AU - Cui, Xiangqun AU - Feng, Longlong AU - Gong, Xuefei AU - Hu, Jingyao AU - Kulesa, C A AU - Lawrence, J S AU - Liu, Genrong AU - Luong-Van, D M AU - Ma, Jun AU - Moore, A M AU - Pennypacker, C R AU - Qin, Weijia AU - Shang, Zhaohui AU - Storey, J W V AU - Sun, Bo AU - Travouillon, T AU - Walker, C K AU - Wang, Jiali AU - Wang, Lifan AU - Wu, Jianghua AU - Wu, Zhenyu AU - Xia, Lirong AU - Yan, Jun AU - Yang, Ji AU - Yang, Huigen AU - Yao, Yongqiang AU - Yuan, Xiangyan AU - York, D G AU - Zhang, Zhanhai AU - Zhu, Zhenxi Y1 - 2010/08/01/ PY - 2010 DA - 2010 Aug 01 SP - 602 EP - 611 PB - American Institute of Physics and IOP Publishing, Washington, DC VL - 140 IS - 2 SN - 0004-6256, 0004-6256 KW - methods KW - clouds KW - aurorae KW - telescope methods KW - Moon KW - Dome A KW - atmosphere KW - i-band KW - Chinese Small Telescope Array KW - brightness KW - photometry KW - optical properties KW - Antarctica KW - Sun KW - arrays KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371761009?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Astronomical+Journal+%28New+York%29&rft.atitle=Sky+brightness+and+transparency+in+the+i-band+at+Dome+A%2C+Antarctica&rft.au=Zou%2C+Hu%3BZhou%2C+Xu%3BJiang%2C+Zhaoji%3BAshley%2C+M+C+B%3BCui%2C+Xiangqun%3BFeng%2C+Longlong%3BGong%2C+Xuefei%3BHu%2C+Jingyao%3BKulesa%2C+C+A%3BLawrence%2C+J+S%3BLiu%2C+Genrong%3BLuong-Van%2C+D+M%3BMa%2C+Jun%3BMoore%2C+A+M%3BPennypacker%2C+C+R%3BQin%2C+Weijia%3BShang%2C+Zhaohui%3BStorey%2C+J+W+V%3BSun%2C+Bo%3BTravouillon%2C+T%3BWalker%2C+C+K%3BWang%2C+Jiali%3BWang%2C+Lifan%3BWu%2C+Jianghua%3BWu%2C+Zhenyu%3BXia%2C+Lirong%3BYan%2C+Jun%3BYang%2C+Ji%3BYang%2C+Huigen%3BYao%2C+Yongqiang%3BYuan%2C+Xiangyan%3BYork%2C+D+G%3BZhang%2C+Zhanhai%3BZhu%2C+Zhenxi&rft.aulast=Zou&rft.aufirst=Hu&rft.date=2010-08-01&rft.volume=140&rft.issue=2&rft.spage=602&rft.isbn=&rft.btitle=&rft.title=The+Astronomical+Journal+%28New+York%29&rft.issn=00046256&rft_id=info:doi/10.1088%2F0004-6256%2F140%2F2%2F602 L2 - http://www.iop.org/EJ/journal/aj LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by IOP Publishing Ltd., London, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 40 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2013-06-27 N1 - SubjectsTermNotLitGenreText - Antarctica; arrays; atmosphere; aurorae; brightness; Chinese Small Telescope Array; clouds; Dome A; i-band; methods; Moon; optical properties; photometry; Sun; telescope methods DO - http://dx.doi.org/10.1088/0004-6256/140/2/602 ER - TY - CPAPER T1 - Understanding carbon cycling in low-diversity chemoautotrophic microbial communities T2 - 2010 Gordon Research Conference on Molecular Basis of Microbial One-Carbon Metabolism AN - 1312964030; 6014694 JF - 2010 Gordon Research Conference on Molecular Basis of Microbial One-Carbon Metabolism AU - Singer, Steven Y1 - 2010/08/01/ PY - 2010 DA - 2010 Aug 01 KW - Carbon cycle KW - Microbial activity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312964030?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Gordon+Research+Conference+on+Molecular+Basis+of+Microbial+One-Carbon+Metabolism&rft.atitle=Understanding+carbon+cycling+in+low-diversity+chemoautotrophic+microbial+communities&rft.au=Singer%2C+Steven&rft.aulast=Singer&rft.aufirst=Steven&rft.date=2010-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Gordon+Research+Conference+on+Molecular+Basis+of+Microbial+One-Carbon+Metabolism&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2010&program=molecbasis LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Structural Analysis of GaN1-x Asx Alloys for Solar Energy Application T2 - 2010 Microscopy and Microanalysis Meeting (M&M 2010) AN - 1312884565; 6025048 JF - 2010 Microscopy and Microanalysis Meeting (M&M 2010) AU - Liliental-Weber, Zuzanna Y1 - 2010/08/01/ PY - 2010 DA - 2010 Aug 01 KW - Structural analysis KW - Solar energy KW - Alloys KW - alloys UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312884565?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Microscopy+and+Microanalysis+Meeting+%28M%26M+2010%29&rft.atitle=Structural+Analysis+of+GaN1-x+Asx+Alloys+for+Solar+Energy+Application&rft.au=Liliental-Weber%2C+Zuzanna&rft.aulast=Liliental-Weber&rft.aufirst=Zuzanna&rft.date=2010-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Microscopy+and+Microanalysis+Meeting+%28M%26M+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.microscopy.org/MandM/2010/posters.cfm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Understanding the biodistribution of actinides and lanthanides for decorporation applications T2 - 7th International Biometals Symposium (BioMetals 2010) AN - 1312983865; 6021422 JF - 7th International Biometals Symposium (BioMetals 2010) AU - Abergel, Rebecca Y1 - 2010/07/25/ PY - 2010 DA - 2010 Jul 25 KW - lanthanides KW - Actinides KW - Lanthanides UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312983865?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=7th+International+Biometals+Symposium+%28BioMetals+2010%29&rft.atitle=Understanding+the+biodistribution+of+actinides+and+lanthanides+for+decorporation+applications&rft.au=Abergel%2C+Rebecca&rft.aulast=Abergel&rft.aufirst=Rebecca&rft.date=2010-07-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=7th+International+Biometals+Symposium+%28BioMetals+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.biochem.arizona.edu/biometals2010/schedule.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Chromatin Accessibility Directs the Widespread, Overlapping Patterns of Animal Transcription Factor Binding in vivo T2 - 2010 Gordon Research Conference on Chromatin Structure & Function AN - 1312913484; 6009832 JF - 2010 Gordon Research Conference on Chromatin Structure & Function AU - Biggin, Mark Y1 - 2010/07/25/ PY - 2010 DA - 2010 Jul 25 KW - Chromatin KW - Transcription factors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312913484?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Gordon+Research+Conference+on+Chromatin+Structure+%26+Function&rft.atitle=Chromatin+Accessibility+Directs+the+Widespread%2C+Overlapping+Patterns+of+Animal+Transcription+Factor+Binding+in+vivo&rft.au=Biggin%2C+Mark&rft.aulast=Biggin&rft.aufirst=Mark&rft.date=2010-07-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Gordon+Research+Conference+on+Chromatin+Structure+%26+Function&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2010&program=chromatin LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - MLFSOM: simulating the diffraction experiment from first principles T2 - 2010 Gordon Research Conference on Diffraction Methods In Structural Biology AN - 41676096; 9941842; 5997992 JF - 2010 Gordon Research Conference on Diffraction Methods In Structural Biology AU - Holton, James Y1 - 2010/07/18/ PY - 2010 DA - 2010 Jul 18 KW - Diffraction UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41676096?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Gordon+Research+Conference+on+Diffraction+Methods+In+Structural+Biology&rft.atitle=MLFSOM%3A+simulating+the+diffraction+experiment+from+first+principles&rft.au=Holton%2C+James&rft.aulast=Holton&rft.aufirst=James&rft.date=2010-07-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Gordon+Research+Conference+on+Diffraction+Methods+In+Structural+Biology&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2010&program=diffrac LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-09-27 N1 - Last updated - 2012-09-05 ER - TY - CPAPER T1 - Kinetics, product branching, and heterogeneous chemistry: Real world applications of planetary atmospheres, combustion, energy production, and aerosols in our environment T2 - 21st International Symposium on Gas Kinetics (GK2010) AN - 41668089; 9947515; 6009228 JF - 21st International Symposium on Gas Kinetics (GK2010) AU - Leone, Stephen Y1 - 2010/07/18/ PY - 2010 DA - 2010 Jul 18 KW - Combustion KW - Kinetics KW - Aerosols KW - Atmospheric chemistry KW - Planetary atmospheres UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/41668089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=21st+International+Symposium+on+Gas+Kinetics+%28GK2010%29&rft.atitle=Kinetics%2C+product+branching%2C+and+heterogeneous+chemistry%3A+Real+world+applications+of+planetary+atmospheres%2C+combustion%2C+energy+production%2C+and+aerosols+in+our+environment&rft.au=Leone%2C+Stephen&rft.aulast=Leone&rft.aufirst=Stephen&rft.date=2010-07-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=21st+International+Symposium+on+Gas+Kinetics+%28GK2010%29&rft.issn=&rft_id=info:doi/ L2 - http://arrhenius.chem.kuleuven.be/~gk2010/Scientific%20program%20for%20GK2010%20as%20of%2021%20June%202010.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-28 N1 - Last updated - 2012-09-05 ER - TY - CPAPER T1 - Kinetics, product branching, and heterogeneous chemistry: Real world applications of planetary atmospheres, combustion, energy production, and aerosols in our environment T2 - 21st International Symposium on Gas Kinetics (GK2010) AN - 1312962907; 6009228 JF - 21st International Symposium on Gas Kinetics (GK2010) AU - Leone, Stephen Y1 - 2010/07/18/ PY - 2010 DA - 2010 Jul 18 KW - Combustion KW - Kinetics KW - Aerosols KW - Atmospheric chemistry KW - Planetary atmospheres UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312962907?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=21st+International+Symposium+on+Gas+Kinetics+%28GK2010%29&rft.atitle=Kinetics%2C+product+branching%2C+and+heterogeneous+chemistry%3A+Real+world+applications+of+planetary+atmospheres%2C+combustion%2C+energy+production%2C+and+aerosols+in+our+environment&rft.au=Leone%2C+Stephen&rft.aulast=Leone&rft.aufirst=Stephen&rft.date=2010-07-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=21st+International+Symposium+on+Gas+Kinetics+%28GK2010%29&rft.issn=&rft_id=info:doi/ L2 - http://arrhenius.chem.kuleuven.be/~gk2010/Scientific%20program%20for%20GK2010%20as%20of%2021%20June%202010.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - A full angle- and energy-resolved measurement of dissociative electron attachment of water T2 - 2010 Gordon Research Conference on Radiation Chemistry AN - 1312924118; 6003336 JF - 2010 Gordon Research Conference on Radiation Chemistry AU - Belkacem, Ali Y1 - 2010/07/18/ PY - 2010 DA - 2010 Jul 18 KW - Radiation KW - Technology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312924118?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Gordon+Research+Conference+on+Radiation+Chemistry&rft.atitle=A+full+angle-+and+energy-resolved+measurement+of+dissociative+electron+attachment+of+water&rft.au=Belkacem%2C+Ali&rft.aulast=Belkacem&rft.aufirst=Ali&rft.date=2010-07-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Gordon+Research+Conference+on+Radiation+Chemistry&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2010&program=radchem LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - MLFSOM: simulating the diffraction experiment from first principles T2 - 2010 Gordon Research Conference on Diffraction Methods In Structural Biology AN - 1312871619; 5997992 JF - 2010 Gordon Research Conference on Diffraction Methods In Structural Biology AU - Holton, James Y1 - 2010/07/18/ PY - 2010 DA - 2010 Jul 18 KW - Diffraction UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312871619?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Gordon+Research+Conference+on+Diffraction+Methods+In+Structural+Biology&rft.atitle=MLFSOM%3A+simulating+the+diffraction+experiment+from+first+principles&rft.au=Holton%2C+James&rft.aulast=Holton&rft.aufirst=James&rft.date=2010-07-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Gordon+Research+Conference+on+Diffraction+Methods+In+Structural+Biology&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2010&program=diffrac LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - JOUR T1 - Usefulness of Cardiorespiratory Fitness to Predict Coronary Heart Disease Risk Independent of Physical Activity AN - 754881201; 13406770 AB - Cardiorespiratory fitness has often been interpreted as a surrogate measurement of physical activity rather than an independent coronary heart disease (CHD) risk factor per se. Fitness is also known to be highly heritable, however, and rats bred selectively for treadmill endurance have low CHD risk phenotypes even in the absence of physical activity. Therefore, I assessed whether cardiorespiratory fitness predicted CHD independent of physical activity in 29,721 men followed prospectively for 7.7 years as part of the National Runners' Health Study. Specifically, CHD deaths and incident participant-reported physician-diagnosed myocardial infarction, revascularization procedures (coronary artery bypass grafting and percutaneous coronary intervention), and angina pectoris during follow-up were compared to baseline cardiorespiratory fitness (10-km footrace performance, meters/second). Nonfatal end points for the 80% of these men who provided follow-up questionnaires included 121 nonfatal myocardial infarctions, 317 revascularization procedures, and 81 angina pectora. The National Death Index identified 44 CHD deaths. Per meter/second increment in baseline fitness, men's risks decreased 54% for nonfatal myocardial infarction (p <0.0001), 44% for combined CHD deaths and nonfatal myocardial infarction (p = 0.0003), 53% for angina pectoris (p = 0.001), and 32% for revascularizations (p = 0.002). Adjustment for physical activity (kilometer/day run) had little effect on the per meter/second risk decreases for nonfatal myocardial infarction (from 64% to 63%), combined CHD deaths and nonfatal myocardial infarction (from 34% to 33%), angina pectoris (from 53% to 47%) or revascularizations (from 32% to 26%). In conclusion, the results suggest that cardiorespiratory fitness is a CHD risk factor, largely independent of physical activity, which warrants clinical screening. JF - American Journal of Cardiology AU - Williams, Paul T AD - Life Sciences Division, Lawrence Berkeley National Laboratory, Donner Laboratory, Berkeley, California, ptwilliams@lbl.gov Y1 - 2010/07/15/ PY - 2010 DA - 2010 Jul 15 SP - 210 EP - 215 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 106 IS - 2 SN - 0002-9149, 0002-9149 KW - Physical Education Index KW - Cardiorespiratory endurance KW - Exercise KW - PE 090:Sports Medicine & Exercise Sport Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754881201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aphysicaleducation&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Journal+of+Cardiology&rft.atitle=Usefulness+of+Cardiorespiratory+Fitness+to+Predict+Coronary+Heart+Disease+Risk+Independent+of+Physical+Activity&rft.au=Williams%2C+Paul+T&rft.aulast=Williams&rft.aufirst=Paul&rft.date=2010-07-15&rft.volume=106&rft.issue=2&rft.spage=210&rft.isbn=&rft.btitle=&rft.title=American+Journal+of+Cardiology&rft.issn=00029149&rft_id=info:doi/10.1016%2Fj.amjcard.2010.03.017 LA - English DB - Physical Education Index N1 - Date revised - 2010-09-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Exercise DO - http://dx.doi.org/10.1016/j.amjcard.2010.03.017 ER - TY - CPAPER T1 - Linked Water and Energy Modeling of the American River System T2 - 2010 Annual Conference of the Universities Council on Water Resources (UCOWR 2010) AN - 1312980249; 5999081 JF - 2010 Annual Conference of the Universities Council on Water Resources (UCOWR 2010) AU - Dale, Larry AU - De La Rue, Stephane Y1 - 2010/07/13/ PY - 2010 DA - 2010 Jul 13 KW - USA, California, American R. KW - Rivers KW - Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312980249?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+Conference+of+the+Universities+Council+on+Water+Resources+%28UCOWR+2010%29&rft.atitle=Linked+Water+and+Energy+Modeling+of+the+American+River+System&rft.au=Dale%2C+Larry%3BDe+La+Rue%2C+Stephane&rft.aulast=Dale&rft.aufirst=Larry&rft.date=2010-07-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+Conference+of+the+Universities+Council+on+Water+Resources+%28UCOWR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ucowr.org/2010_Conference/Seattle_Final_Program_June_29.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Progress Towards a New Transport Solver for CONTAM T2 - 14th Annual George Mason University Conference on Atmospheric Transport and Dispersion Modeling AN - 1312936127; 6002767 JF - 14th Annual George Mason University Conference on Atmospheric Transport and Dispersion Modeling AU - Lorenzetti, D AU - Dols, W Y1 - 2010/07/13/ PY - 2010 DA - 2010 Jul 13 KW - Atmospheric sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312936127?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=14th+Annual+George+Mason+University+Conference+on+Atmospheric+Transport+and+Dispersion+Modeling&rft.atitle=Progress+Towards+a+New+Transport+Solver+for+CONTAM&rft.au=Lorenzetti%2C+D%3BDols%2C+W&rft.aulast=Lorenzetti&rft.aufirst=D&rft.date=2010-07-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=14th+Annual+George+Mason+University+Conference+on+Atmospheric+Transport+and+Dispersion+Modeling&rft.issn=&rft_id=info:doi/ L2 - http://camp.cos.gmu.edu/Agenda-14th-GMU-Conference.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Algorithm for Indoor Sampler Placement with Possible Extension to Indoor- Outdoor Environments T2 - 14th Annual George Mason University Conference on Atmospheric Transport and Dispersion Modeling AN - 1312912921; 6002779 JF - 14th Annual George Mason University Conference on Atmospheric Transport and Dispersion Modeling AU - Sohn, M AU - Walter, T AU - Lorenzetti, D Y1 - 2010/07/13/ PY - 2010 DA - 2010 Jul 13 KW - Algorithms KW - Samplers KW - Mathematical models UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312912921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=14th+Annual+George+Mason+University+Conference+on+Atmospheric+Transport+and+Dispersion+Modeling&rft.atitle=Algorithm+for+Indoor+Sampler+Placement+with+Possible+Extension+to+Indoor-+Outdoor+Environments&rft.au=Sohn%2C+M%3BWalter%2C+T%3BLorenzetti%2C+D&rft.aulast=Sohn&rft.aufirst=M&rft.date=2010-07-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=14th+Annual+George+Mason+University+Conference+on+Atmospheric+Transport+and+Dispersion+Modeling&rft.issn=&rft_id=info:doi/ L2 - http://camp.cos.gmu.edu/Agenda-14th-GMU-Conference.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Hybrid Parallel Programming for Massive Graph Analysis T2 - 2010 SIAM Annual Meeting (AN10) AN - 1312942185; 5999272 JF - 2010 SIAM Annual Meeting (AN10) AU - Madduri, Kamesh Y1 - 2010/07/12/ PY - 2010 DA - 2010 Jul 12 KW - hybrids KW - Hybrids KW - Planning UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312942185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Annual+Meeting+%28AN10%29&rft.atitle=Hybrid+Parallel+Programming+for+Massive+Graph+Analysis&rft.au=Madduri%2C+Kamesh&rft.aulast=Madduri&rft.aufirst=Kamesh&rft.date=2010-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Annual+Meeting+%28AN10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=AN10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - A Machine Learning Approach to Intrusion Detection for High Performance Computing T2 - 2010 SIAM Annual Meeting (AN10) AN - 1312900984; 5999648 JF - 2010 SIAM Annual Meeting (AN10) AU - Meza, Juan AU - Bailey, David Y1 - 2010/07/12/ PY - 2010 DA - 2010 Jul 12 KW - Learning algorithms UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312900984?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Annual+Meeting+%28AN10%29&rft.atitle=A+Machine+Learning+Approach+to+Intrusion+Detection+for+High+Performance+Computing&rft.au=Meza%2C+Juan%3BBailey%2C+David&rft.aulast=Meza&rft.aufirst=Juan&rft.date=2010-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Annual+Meeting+%28AN10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=AN10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - An Embarrassingly Parallel Benchmark to Study Architecture Heterogeneity T2 - 2010 SIAM Annual Meeting (AN10) AN - 1312899918; 5999826 JF - 2010 SIAM Annual Meeting (AN10) AU - Van Straalen, Brian Y1 - 2010/07/12/ PY - 2010 DA - 2010 Jul 12 KW - benchmarks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312899918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Annual+Meeting+%28AN10%29&rft.atitle=An+Embarrassingly+Parallel+Benchmark+to+Study+Architecture+Heterogeneity&rft.au=Van+Straalen%2C+Brian&rft.aulast=Van+Straalen&rft.aufirst=Brian&rft.date=2010-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Annual+Meeting+%28AN10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=AN10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Factorization-based Sparse Solvers and Preconditioners T2 - 2010 SIAM Annual Meeting (AN10) AN - 1312899281; 5999625 JF - 2010 SIAM Annual Meeting (AN10) AU - Li, Xiaoye Y1 - 2010/07/12/ PY - 2010 DA - 2010 Jul 12 KW - Applied mathematics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312899281?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Annual+Meeting+%28AN10%29&rft.atitle=Factorization-based+Sparse+Solvers+and+Preconditioners&rft.au=Li%2C+Xiaoye&rft.aulast=Li&rft.aufirst=Xiaoye&rft.date=2010-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Annual+Meeting+%28AN10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=AN10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Using Replication for Energy Conservation in RAID Systems T2 - 16th Annual International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2010) AN - 1312867201; 6002604 JF - 16th Annual International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2010) AU - Kim, Jinoh AU - Rotem, Doron Y1 - 2010/07/12/ PY - 2010 DA - 2010 Jul 12 KW - Energy conservation KW - Replication UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312867201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=16th+Annual+International+Conference+on+Parallel+and+Distributed+Processing+Techniques+and+Applications+%28PDPTA+2010%29&rft.atitle=Using+Replication+for+Energy+Conservation+in+RAID+Systems&rft.au=Kim%2C+Jinoh%3BRotem%2C+Doron&rft.aulast=Kim&rft.aufirst=Jinoh&rft.date=2010-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=16th+Annual+International+Conference+on+Parallel+and+Distributed+Processing+Techniques+and+Applications+%28PDPTA+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.world-academy-of-science.org/worldcomp10/ws/program/pdp15 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - Sparse Multitask Regression for Identifying Common Mechanism of Response to Therapeutic Targets T2 - 18th Annual International Conference on Intelligent Systems for Molecular Biology (ISMB 2010) AN - 1312857862; 5983546 JF - 18th Annual International Conference on Intelligent Systems for Molecular Biology (ISMB 2010) AU - Zhang, Kai AU - Gray, Joe Y1 - 2010/07/09/ PY - 2010 DA - 2010 Jul 09 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312857862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=18th+Annual+International+Conference+on+Intelligent+Systems+for+Molecular+Biology+%28ISMB+2010%29&rft.atitle=Sparse+Multitask+Regression+for+Identifying+Common+Mechanism+of+Response+to+Therapeutic+Targets&rft.au=Zhang%2C+Kai%3BGray%2C+Joe&rft.aulast=Zhang&rft.aufirst=Kai&rft.date=2010-07-09&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=18th+Annual+International+Conference+on+Intelligent+Systems+for+Molecular+Biology+%28ISMB+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.iscb.org/ismb2010-program LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-02-26 N1 - Last updated - 2013-02-28 ER - TY - CPAPER T1 - MRI Thermometry Based on Encapsulated Hyperpolarized Xenon T2 - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AN - 866038422; 5972482 JF - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AU - Schilling, Franz AU - Schroder, Leif AU - Palaniappan, Krishnan AU - Wemmer, David AU - Pines, Alexander AU - Zapf, Sina Y1 - 2010/07/04/ PY - 2010 DA - 2010 Jul 04 KW - Xenon KW - xenon KW - Magnetic resonance imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/866038422?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.atitle=MRI+Thermometry+Based+on+Encapsulated+Hyperpolarized+Xenon&rft.au=Schilling%2C+Franz%3BSchroder%2C+Leif%3BPalaniappan%2C+Krishnan%3BWemmer%2C+David%3BPines%2C+Alexander%3BZapf%2C+Sina&rft.aulast=Schilling&rft.aufirst=Franz&rft.date=2010-07-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.cerm.unifi.it/wwmr2010/files/Book.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-09 N1 - Last updated - 2012-09-05 ER - TY - CPAPER T1 - Encapsulated Xenon as an NMR Sensor for Biomedical Applications T2 - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AN - 866036979; 5972112 JF - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AU - Schroder, Leif AU - Meldrum, Tyler AU - Schilling, Franz AU - Pines, Alexander AU - Wemmer, David Y1 - 2010/07/04/ PY - 2010 DA - 2010 Jul 04 KW - N.M.R. KW - Xenon KW - Sensors KW - xenon UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/866036979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.atitle=Encapsulated+Xenon+as+an+NMR+Sensor+for+Biomedical+Applications&rft.au=Schroder%2C+Leif%3BMeldrum%2C+Tyler%3BSchilling%2C+Franz%3BPines%2C+Alexander%3BWemmer%2C+David&rft.aulast=Schroder&rft.aufirst=Leif&rft.date=2010-07-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.cerm.unifi.it/wwmr2010/files/Book.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-09 N1 - Last updated - 2012-09-05 ER - TY - CPAPER T1 - Magnetic Resonance Imaging of Oscillating Electrical Currents T2 - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AN - 866035943; 5972461 JF - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AU - Halpern-Manners, Nicholas AU - Bajaj, Vikram AU - Teisseyre, Thomas AU - Pines, Alexander Y1 - 2010/07/04/ PY - 2010 DA - 2010 Jul 04 KW - Magnetic resonance imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/866035943?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.atitle=Magnetic+Resonance+Imaging+of+Oscillating+Electrical+Currents&rft.au=Halpern-Manners%2C+Nicholas%3BBajaj%2C+Vikram%3BTeisseyre%2C+Thomas%3BPines%2C+Alexander&rft.aulast=Halpern-Manners&rft.aufirst=Nicholas&rft.date=2010-07-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.cerm.unifi.it/wwmr2010/files/Book.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-09 N1 - Last updated - 2012-09-05 ER - TY - CPAPER T1 - 129Xe Signal Amplification by Gas Extraction and Compression for Remote Detection of a Xenon Biosensor T2 - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AN - 866035030; 5972758 JF - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AU - Graziani, Dominic AU - Guo, Jin AU - Meldrum, Tyler AU - Pines, Alexander AU - Zhou, Xin Y1 - 2010/07/04/ PY - 2010 DA - 2010 Jul 04 KW - Biosensors KW - Xenon KW - xenon KW - Compression UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/866035030?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.atitle=129Xe+Signal+Amplification+by+Gas+Extraction+and+Compression+for+Remote+Detection+of+a+Xenon+Biosensor&rft.au=Graziani%2C+Dominic%3BGuo%2C+Jin%3BMeldrum%2C+Tyler%3BPines%2C+Alexander%3BZhou%2C+Xin&rft.aulast=Graziani&rft.aufirst=Dominic&rft.date=2010-07-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.cerm.unifi.it/wwmr2010/files/Book.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-09 N1 - Last updated - 2012-09-05 ER - TY - CPAPER T1 - Remote detection of a Xenon-based Molecular Sensor T2 - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AN - 866033985; 5972841 JF - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AU - Smith, Monica AU - Meldrum, Tyler AU - Bajaj, Vikram AU - Pines, Alexander AU - Wemmer, David Y1 - 2010/07/04/ PY - 2010 DA - 2010 Jul 04 KW - Sensors UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/866033985?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.atitle=Remote+detection+of+a+Xenon-based+Molecular+Sensor&rft.au=Smith%2C+Monica%3BMeldrum%2C+Tyler%3BBajaj%2C+Vikram%3BPines%2C+Alexander%3BWemmer%2C+David&rft.aulast=Smith&rft.aufirst=Monica&rft.date=2010-07-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.cerm.unifi.it/wwmr2010/files/Book.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-09 N1 - Last updated - 2012-09-05 ER - TY - CPAPER T1 - Remotely Detected Magnetic Resonance Imaging and Velocimetry T2 - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AN - 866033921; 5971973 JF - 2010 World Wide Magnetic Resonance Conference: Joint EUROMAR 2010 and 17th ISMAR Conference (WWMR 2010) AU - Bajaj, Vikram AU - Halpern-Manners, Nicholas AU - Teisseyre, Thomas AU - Paulsen, Jeffrey AU - Meldrum, Tyler AU - Smith, Monica AU - Pines, Alexander Y1 - 2010/07/04/ PY - 2010 DA - 2010 Jul 04 KW - Magnetic resonance imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/866033921?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.atitle=Remotely+Detected+Magnetic+Resonance+Imaging+and+Velocimetry&rft.au=Bajaj%2C+Vikram%3BHalpern-Manners%2C+Nicholas%3BTeisseyre%2C+Thomas%3BPaulsen%2C+Jeffrey%3BMeldrum%2C+Tyler%3BSmith%2C+Monica%3BPines%2C+Alexander&rft.aulast=Bajaj&rft.aufirst=Vikram&rft.date=2010-07-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+World+Wide+Magnetic+Resonance+Conference%3A+Joint+EUROMAR+2010+and+17th+ISMAR+Conference+%28WWMR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.cerm.unifi.it/wwmr2010/files/Book.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-09 N1 - Last updated - 2012-09-05 ER - TY - JOUR T1 - The significance of crack-resistance curves to the mixed-mode fracture toughness of human cortical bone AN - 760203253; 13201617 AB - The majority of fracture mechanics studies on the toughness of bone have been performed under tensile loading. However, it has recently been shown that the toughness of human cortical bone in the transverse (breaking) orientation is actually much lower in shear (mode II) than in tension (mode I); a fact that is physiologically relevant as in vivo bone is invariably loaded multiaxially. Since bone is a material that derives its fracture resistance primarily during crack growth through extrinsic toughening mechanisms, such as crack deflection and bridging, evaluation of its toughness is best achieved through measurements of the crack-resistance or R-curve, which describes the fracture toughness as a function of crack extension. Accordingly, in this study, we attempt to measure for the first time the R-curve fracture toughness of human cortical bone under physiologically relevant mixed-mode loading conditions. We show that the resulting mixed-mode (mode I+II) toughness depends strongly on the crack trajectory and is the result of the competition between the paths of maximum mechanical driving force and "weakest" microstructural resistance. JF - Biomaterials AU - Zimmermann, Elizabeth A AU - Launey, Maximilien E AU - Ritchie, Robert O AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2010/07// PY - 2010 DA - Jul 2010 SP - 5297 EP - 5305 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 31 IS - 20 SN - 0142-9612, 0142-9612 KW - Calcium & Calcified Tissue Abstracts; Biotechnology and Bioengineering Abstracts KW - Human cortical bone KW - Mixed-mode fracture KW - Fracture toughness KW - Crack-growth resistance curve KW - Loading KW - Bone (cortical) KW - Fractures KW - Bone growth KW - Competition KW - Mechanical properties KW - W 30920:Tissue Engineering KW - T 2025:Bone and Bone Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/760203253?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biomaterials&rft.atitle=The+significance+of+crack-resistance+curves+to+the+mixed-mode+fracture+toughness+of+human+cortical+bone&rft.au=Zimmermann%2C+Elizabeth+A%3BLauney%2C+Maximilien+E%3BRitchie%2C+Robert+O&rft.aulast=Zimmermann&rft.aufirst=Elizabeth&rft.date=2010-07-01&rft.volume=31&rft.issue=20&rft.spage=5297&rft.isbn=&rft.btitle=&rft.title=Biomaterials&rft.issn=01429612&rft_id=info:doi/10.1016%2Fj.biomaterials.2010.03.056 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Loading; Bone (cortical); Bone growth; Fractures; Competition; Mechanical properties DO - http://dx.doi.org/10.1016/j.biomaterials.2010.03.056 ER - TY - JOUR T1 - Tumor Engineering: The Other Face of Tissue Engineering AN - 754872505; 13233268 AB - Advances in tissue engineering have been accomplished for years by employing biomimetic strategies to provide cells with aspects of their original microenvironment necessary to reconstitute a unit of both form and function for a given tissue. We believe that the most critical hallmark of cancer is loss of integration of architecture and function; thus, it stands to reason that similar strategies could be employed to understand tumor biology. In this commentary, we discuss work contributed by Fischbach-Teschl and colleagues to this special issue of Tissue Engineering in the context of 'tumor engineering', that is, the construction of complex cell culture models that recapitulate aspects of the in vivo tumor microenvironment to study the dynamics of tumor development, progression, and therapy on multiple scales. We provide examples of fundamental questions that could be answered by developing such models, and encourage the continued collaboration between physical scientists and life scientists not only for regenerative purposes, but also to unravel the complexity that is the tumor microenvironment. JF - Tissue Engineering, Part A: Tissue Engineering AU - Ghajar, C M AU - Bissell, MJ AD - Life Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720-8206, USA, cmghajar@lbl.gov Y1 - 2010/07// PY - 2010 DA - Jul 2010 SP - 2153 EP - 2156 VL - 16 IS - 7 SN - 1937-3341, 1937-3341 KW - Biotechnology and Bioengineering Abstracts KW - Integration KW - Microenvironments KW - Cell culture KW - Tumors KW - Tissue engineering KW - Cancer KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754872505?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tissue+Engineering%2C+Part+A%3A+Tissue+Engineering&rft.atitle=Tumor+Engineering%3A+The+Other+Face+of+Tissue+Engineering&rft.au=Ghajar%2C+C+M%3BBissell%2C+MJ&rft.aulast=Ghajar&rft.aufirst=C&rft.date=2010-07-01&rft.volume=16&rft.issue=7&rft.spage=2153&rft.isbn=&rft.btitle=&rft.title=Tissue+Engineering%2C+Part+A%3A+Tissue+Engineering&rft.issn=19373341&rft_id=info:doi/10.1089%2Ften.tea.2010.0135 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Integration; Microenvironments; Cell culture; Tumors; Tissue engineering; Cancer DO - http://dx.doi.org/10.1089/ten.tea.2010.0135 ER - TY - JOUR T1 - Coda-wave interferometry analysis of time-lapse VSP data for monitoring geological carbon sequestration AN - 754532444; 13215636 AB - Injection and movement/saturation of carbon dioxide (CO sub(2)) in a geological formation will cause changes in seismic velocities. We investigate the capability of coda-wave interferometry technique for estimating CO sub(2)-induced seismic velocity changes using time-lapse synthetic vertical seismic profiling (VSP) data and the field VSP datasets acquired for monitoring injected CO sub(2) in a brine aquifer in Texas, USA. Synthetic VSP data are calculated using a finite-difference elastic-wave equation scheme and a layered model based on the elastic Marmousi model. A possible leakage scenario is simulated by introducing seismic velocity changes in a layer above the CO sub(2) injection layer. We find that the leakage can be detected by the detection of a difference in seismograms recorded after the injection compared to those recorded before the injection at an earlier time in the seismogram than would be expected if there was no leakage. The absolute values of estimated mean velocity changes, from both synthetic and field VSP data, increase significantly for receiver positions approaching the top of a CO sub(2) reservoir. Our results from field data suggest that the velocity changes caused by CO sub(2) injection could be more than 10% and are consistent with results from a crosswell tomogram study. This study demonstrates that time-lapse VSP with coda-wave interferometry analysis can reliably and effectively monitor geological carbon sequestration. JF - International Journal of Greenhouse Gas Control AU - Zhou, Rongmao AU - Huang, Lianjie AU - Rutledge, James T AU - Fehler, Michael AU - Daley, Thomas M AU - Majer, Ernest L AD - Geophysics Group, MS D443, Los Alamos National Laboratory, Los Alamos, NM 87545, United States, rongmaozhou@gmail.comljh@lanl.govJrutledge@lanl.govfehler@mit.edutmdaley@lbl.govelmajer@lbl.gov Y1 - 2010/07// PY - 2010 DA - Jul 2010 SP - 679 EP - 686 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 4 IS - 4 SN - 1750-5836, 1750-5836 KW - Sustainability Science Abstracts; Environment Abstracts; Pollution Abstracts KW - Aquifers KW - Leakage KW - Velocity KW - interferometry KW - Carbon sequestration KW - Geology KW - USA, Texas KW - Carbon dioxide KW - Greenhouse gases KW - Reservoirs KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754532444?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=Coda-wave+interferometry+analysis+of+time-lapse+VSP+data+for+monitoring+geological+carbon+sequestration&rft.au=Zhou%2C+Rongmao%3BHuang%2C+Lianjie%3BRutledge%2C+James+T%3BFehler%2C+Michael%3BDaley%2C+Thomas+M%3BMajer%2C+Ernest+L&rft.aulast=Zhou&rft.aufirst=Rongmao&rft.date=2010-07-01&rft.volume=4&rft.issue=4&rft.spage=679&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2010.01.010 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Aquifers; Carbon sequestration; Leakage; Velocity; Geology; Greenhouse gases; Carbon dioxide; Reservoirs; interferometry; USA, Texas DO - http://dx.doi.org/10.1016/j.ijggc.2010.01.010 ER - TY - JOUR T1 - Modeling Basin- and Plume-Scale Processes of CO2 Storage for Full-Scale Deployment AN - 746010856; 13144504 AB - Integrated modeling of basin- and plume-scale processes induced by full-scale deployment of CO2 storage was applied to the Mt. Simon Aquifer in the Illinois Basin. A three-dimensional mesh was generated with local refinement around 20 injection sites, with approximately 30 km spacing. A total annual injection rate of 100 Mt CO2 over 50 years was used. The CO2-brine flow at the plume scale and the single-phase flow at the basin scale were simulated. Simulation results show the overall shape of a CO2 plume consisting of a typical gravity-override subplume in the bottom injection zone of high injectivity and a pyramid-shaped subplume in the overlying multilayered Mt. Simon, indicating the important role of a secondary seal with relatively low-permeability and high-entry capillary pressure. The secondary-seal effect is manifested by retarded upward CO2 migration as a result of multiple secondary seals, coupled with lateral preferential CO2 viscous fingering through high-permeability layers. The plume width varies from 9.0 to 13.5 km at 200 years, indicating the slow CO2 migration and no plume interference between storage sites. On the basin scale, pressure perturbations propagate quickly away from injection centers, interfere after less than 1 year, and eventually reach basin margins. The simulated pressure buildup of 35 bar in the injection area is not expected to affect caprock geomechanical integrity. Moderate pressure buildup is observed in Mt. Simon in northern Illinois. However, its impact on groundwater resources is less than the hydraulic drawdown induced by long-term extensive pumping from overlying freshwater aquifers. JF - Ground Water AU - Zhou, Quanlin AU - Birkholzer, Jens T AU - Mehnert, Edward AU - Lin, Yu-Feng AU - Zhang, Keni AD - 2Illinois State Geological Survey, Champaign, IL 61820., QZhou@lbl.gov PY - 2010 SP - 494 EP - 514 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 48 IS - 4 SN - 0017-467X, 0017-467X KW - ASFA 3: Aquatic Pollution & Environmental Quality; ASFA 2: Ocean Technology Policy & Non-Living Resources; Environment Abstracts; Water Resources Abstracts; Aqualine Abstracts KW - Aquifers KW - Aquifer KW - Basins KW - Injection KW - Migration KW - USA, Illinois, Illinois Basin KW - Pumping KW - Plumes KW - Modelling KW - Marine KW - migration KW - Storage life KW - Simulation KW - Model Studies KW - Storage KW - Groundwater KW - Carbon dioxide KW - Carbon Dioxide KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - Q2 09422:Storage and transport KW - SW 6030:Hydraulic machinery KW - ENA 19:Water Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746010856?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Ground+Water&rft.atitle=Modeling+Basin-+and+Plume-Scale+Processes+of+CO2+Storage+for+Full-Scale+Deployment&rft.au=Zhou%2C+Quanlin%3BBirkholzer%2C+Jens+T%3BMehnert%2C+Edward%3BLin%2C+Yu-Feng%3BZhang%2C+Keni&rft.aulast=Zhou&rft.aufirst=Quanlin&rft.date=2010-07-01&rft.volume=48&rft.issue=4&rft.spage=494&rft.isbn=&rft.btitle=&rft.title=Ground+Water&rft.issn=0017467X&rft_id=info:doi/10.1111%2Fj.1745-6584.2009.00657.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Number of references - 41 N1 - Last updated - 2016-01-21 N1 - SubjectsTermNotLitGenreText - Aquifer; Storage life; Pumping; Carbon dioxide; Modelling; Aquifers; Storage; migration; Simulation; Basins; Groundwater; Plumes; Migration; Injection; Model Studies; Carbon Dioxide; USA, Illinois, Illinois Basin; Marine DO - http://dx.doi.org/10.1111/j.1745-6584.2009.00657.x ER - TY - JOUR T1 - Limits of sequence and functional conservation AN - 745644286; 13150564 AB - Sequence conservation of noncoding DNA across species can indicate functional conservation. However, a new study demonstrates notable differences between human and mouse stem cell regulatory networks, suggesting caution in generalizing from sequence to functional conservation. JF - Nature Genetics AU - Pennacchio, Len A AU - Visel, Axel AD - Len A. Pennacchio and Axel Visel are at the Genomics Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2010/07// PY - 2010 DA - Jul 2010 SP - 557 EP - 558 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 42 IS - 7 SN - 1061-4036, 1061-4036 KW - Genetics Abstracts; Sustainability Science Abstracts KW - Genetics KW - Stem cells KW - stem cells KW - Regulatory sequences KW - Nucleotide sequence KW - DNA KW - Conservation KW - Conserved sequence KW - M3 1010:Issues in Sustainable Development KW - G 07730:Development & Cell Cycle UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745644286?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Genetics&rft.atitle=Limits+of+sequence+and+functional+conservation&rft.au=Pennacchio%2C+Len+A%3BVisel%2C+Axel&rft.aulast=Pennacchio&rft.aufirst=Len&rft.date=2010-07-01&rft.volume=42&rft.issue=7&rft.spage=557&rft.isbn=&rft.btitle=&rft.title=Nature+Genetics&rft.issn=10614036&rft_id=info:doi/10.1038%2Fng0710-557 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Stem cells; Nucleotide sequence; Regulatory sequences; DNA; Conserved sequence; Genetics; stem cells; Conservation DO - http://dx.doi.org/10.1038/ng0710-557 ER - TY - JOUR T1 - Comparison of dilute acid and ionic liquid pretreatment of switchgrass: Biomass recalcitrance, delignification and enzymatic saccharification AN - 744626787; 12983390 AB - The efficiency of two biomass pretreatment technologies, dilute acid hydrolysis and dissolution in an ionic liquid, are compared in terms of delignification, saccharification efficiency and saccharide yields with switchgrass serving as a model bioenergy crop. When subject to ionic liquid pretreatment (dissolution and precipitation of cellulose by anti-solvent) switchgrass exhibited reduced cellulose crystallinity, increased surface area, and decreased lignin content compared to dilute acid pretreatment. Pretreated material was characterized by powder X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and chemistry methods. Ionic liquid pretreatment enabled a significant enhancement in the rate of enzyme hydrolysis of the cellulose component of switchgrass, with a rate increase of 16.7-fold, and a glucan yield of 96.0% obtained in 24 h. These results indicate that ionic liquid pretreatment may offer unique advantages when compared to the dilute acid pretreatment process for switchgrass. However, the cost of the ionic liquid process must also be taken into consideration. JF - Bioresource Technology AU - Li, Chenlin AU - Knierim, Bernhard AU - Manisseri, Chithra AU - Arora, Rohit AU - Scheller, Henrik V AU - Auer, Manfred AU - Vogel, Kenneth P AU - Simmons, Blake A AU - Singh, Seema AD - Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA, United States, seesing@sandia.gov Y1 - 2010/07// PY - 2010 DA - Jul 2010 SP - 4900 EP - 4906 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 101 IS - 13 SN - 0960-8524, 0960-8524 KW - Environment Abstracts; Biotechnology and Bioengineering Abstracts KW - Pretreatment KW - Ionic liquid KW - Dilute acid KW - Comparison KW - Enzymatic saccharification KW - Powder KW - Crystallinity KW - Cellulose KW - Spectroscopy KW - Crops KW - I.R. spectroscopy KW - saccharides KW - glucans KW - Scanning electron microscopy KW - Surface area KW - biofuels KW - Enzymes KW - Precipitation KW - X-ray diffraction KW - Biomass KW - Hydrolysis KW - Raman spectroscopy KW - Fourier transforms KW - Microscopy KW - Lignin KW - Dissolution KW - ENA 03:Energy KW - W 30945:Fermentation & Cell Culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/744626787?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioresource+Technology&rft.atitle=Comparison+of+dilute+acid+and+ionic+liquid+pretreatment+of+switchgrass%3A+Biomass+recalcitrance%2C+delignification+and+enzymatic+saccharification&rft.au=Li%2C+Chenlin%3BKnierim%2C+Bernhard%3BManisseri%2C+Chithra%3BArora%2C+Rohit%3BScheller%2C+Henrik+V%3BAuer%2C+Manfred%3BVogel%2C+Kenneth+P%3BSimmons%2C+Blake+A%3BSingh%2C+Seema&rft.aulast=Li&rft.aufirst=Chenlin&rft.date=2010-07-01&rft.volume=101&rft.issue=13&rft.spage=4900&rft.isbn=&rft.btitle=&rft.title=Bioresource+Technology&rft.issn=09608524&rft_id=info:doi/10.1016%2Fj.biortech.2009.10.066 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Scanning electron microscopy; Powder; Crystallinity; Surface area; Cellulose; Enzymes; Precipitation; Biomass; X-ray diffraction; Hydrolysis; Crops; Raman spectroscopy; I.R. spectroscopy; Lignin; Dissolution; glucans; Fourier transforms; Microscopy; biofuels; Spectroscopy; saccharides DO - http://dx.doi.org/10.1016/j.biortech.2009.10.066 ER - TY - JOUR T1 - Study on Auto-DR and pre-cooling of commercial buildings with thermal mass in California AN - 1777131909; 15316971 AB - This paper discusses how to optimize pre-cooling strategies for buildings in a hot California climate zone with the Demand Response Quick Assessment Tool (DRQAT), a building energy simulation tool. This paper outlines the procedure used to develop and calibrate DRQAT simulation models, and applies this procedure to eleven field test buildings. The results of a comparison between the measured demand savings during the peak period and the savings predicted by the simulation model indicate that the predicted demand shed match well with measured data for the corresponding auto-demand response (Auto-DR) days. The study shows that the accuracy of the simulation models is greatly improved after calibrating the initial models with measured data. These improved models can be used to predict load reductions for automated demand response events. The simulation results were compared with field test data to confirm the actual effect of demand response strategies. Results indicate that the optimal demand response strategies worked well for most of the buildings tested in this hot climate zone. JF - Energy and Buildings AU - Yin, Rongxin AU - Xu, Peng AU - Piette, Mary Ann AU - Kiliccote, Sila AD - Commercial Building Systems Group, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS90R3111 Berkeley, CA 94720, United States Y1 - 2010/07// PY - 2010 DA - July 2010 SP - 967 EP - 975 PB - Elsevier B.V., P.O. Box 564 Lausanne 1 CH-1001 Switzerland VL - 42 IS - 7 SN - 0378-7788, 0378-7788 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Pre-cooling KW - Demand response KW - Thermal mass KW - Auto-DR KW - Demand shed KW - Peak demand KW - Mathematical models KW - Computer simulation KW - Demand KW - Strategy KW - Marketing KW - Calibration KW - Buildings KW - Tools UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777131909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+and+Buildings&rft.atitle=Study+on+Auto-DR+and+pre-cooling+of+commercial+buildings+with+thermal+mass+in+California&rft.au=Yin%2C+Rongxin%3BXu%2C+Peng%3BPiette%2C+Mary+Ann%3BKiliccote%2C+Sila&rft.aulast=Yin&rft.aufirst=Rongxin&rft.date=2010-07-01&rft.volume=42&rft.issue=7&rft.spage=967&rft.isbn=&rft.btitle=&rft.title=Energy+and+Buildings&rft.issn=03787788&rft_id=info:doi/10.1016%2Fj.enbuild.2010.01.008 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-11-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.enbuild.2010.01.008 ER - TY - JOUR T1 - Isothermal compression behavior of (Mg,Fe)O using neon as a pressure medium AN - 1502292443; 2014-013296 AB - We present isothermal volume compression behavior of two polycrystalline (Mg,Fe)O samples with FeO = 39 and 78 mol% up to approximately 90 GPa at 300 K using synchrotron X-ray diffraction and neon as a pressure-transmitting medium. For the iron-rich (Mg0.22Fe0.78)O sample, a structural transition from the B1 structure to a rhombohedral structure was observed at 41.6 GPa, with no further indication of changes in structural or compression behavior changes up to 93 GPa. In contrast, a change in the compression behavior of (Mg0.61Fe0.39)O was observed during compression at P > or = 71 GPa and is indicative of a spin crossover occurring in the Fe2+ component of (Mg0.61Fe0.39)O. The low-spin state exhibited a volume collapse of approximately 3.5%, which is a larger value than what was observed for a similar composition in a laser-heated NaCl medium. Upon decompression, the volume of the high-spin state was recovered at approximately 65 GPa. We therefore bracket the spin crossover at 65 < or = P (GPa) < or = 77 at 300 K (Mg0.61Fe0.39)O. We observed no deviation from the B1 structure in (Mg0.61Fe0.39)O throughout the pressure range investigated. JF - Physics and Chemistry of Minerals AU - Zhuravlev, Kirill K AU - Jackson, J M AU - Wolf, A S AU - Wicks, J K AU - Yan, J AU - Clark, S M Y1 - 2010/07// PY - 2010 DA - July 2010 SP - 465 EP - 474 PB - Springer-Verlag, Berlin - New York VL - 37 IS - 7 SN - 0342-1791, 0342-1791 KW - cell dimensions KW - experimental studies KW - periclase KW - pressure KW - X-ray diffraction data KW - spin crossover KW - mantle KW - phase transitions KW - high pressure KW - iron KW - lower mantle KW - noble gases KW - neon KW - metals KW - volume KW - polycrystalline materials KW - oxides KW - equations of state KW - synthetic materials KW - compressibility KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1502292443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Physics+and+Chemistry+of+Minerals&rft.atitle=Isothermal+compression+behavior+of+%28Mg%2CFe%29O+using+neon+as+a+pressure+medium&rft.au=Zhuravlev%2C+Kirill+K%3BJackson%2C+J+M%3BWolf%2C+A+S%3BWicks%2C+J+K%3BYan%2C+J%3BClark%2C+S+M&rft.aulast=Zhuravlev&rft.aufirst=Kirill&rft.date=2010-07-01&rft.volume=37&rft.issue=7&rft.spage=465&rft.isbn=&rft.btitle=&rft.title=Physics+and+Chemistry+of+Minerals&rft.issn=03421791&rft_id=info:doi/10.1007%2Fs00269-009-0347-6 L2 - http://www.springerlink.com/content/100449/?p=e597e977f1914094b3810f7e67f0a453&pi=0 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Date revised - 2014-01-01 N1 - Number of references - 41 N1 - Last updated - 2014-02-27 N1 - CODEN - PCMIDU N1 - SubjectsTermNotLitGenreText - cell dimensions; compressibility; equations of state; experimental studies; high pressure; iron; lower mantle; mantle; metals; neon; noble gases; oxides; periclase; phase transitions; polycrystalline materials; pressure; spin crossover; synthetic materials; volume; X-ray diffraction data DO - http://dx.doi.org/10.1007/s00269-009-0347-6 ER - TY - JOUR T1 - Oxygen isotope effect dominated by VUV photodissociation dynamics of CO; implications for nebular CO photolysis AN - 1438971578; 2013-074800 JF - Meteoritics & Planetary Science AU - Chakraborty, S AU - Davis, R AU - Ahmed, M AU - Jackson, T L AU - Thiemens, M H AU - Anonymous Y1 - 2010/07// PY - 2010 DA - July 2010 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 45, SUPPL. SN - 1086-9379, 1086-9379 KW - isotope fractionation KW - experimental studies KW - dissociation KW - oxygen KW - isotopes KW - photochemistry KW - stable isotopes KW - ultraviolet radiation KW - wavelength KW - solar nebula KW - carbon monoxide KW - electromagnetic radiation KW - photolysis KW - O-18 KW - O-17 KW - photodissociation KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438971578?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Oxygen+isotope+effect+dominated+by+VUV+photodissociation+dynamics+of+CO%3B+implications+for+nebular+CO+photolysis&rft.au=Chakraborty%2C+S%3BDavis%2C+R%3BAhmed%2C+M%3BJackson%2C+T+L%3BThiemens%2C+M+H%3BAnonymous&rft.aulast=Chakraborty&rft.aufirst=S&rft.date=2010-07-01&rft.volume=45%2C+SUPPL.&rft.issue=&rft.spage=A31&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01051.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 73rd annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 8 N1 - PubXState - AR N1 - Last updated - 2013-10-03 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - carbon monoxide; dissociation; electromagnetic radiation; experimental studies; isotope fractionation; isotopes; O-17; O-18; oxygen; photochemistry; photodissociation; photolysis; solar nebula; stable isotopes; ultraviolet radiation; wavelength DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01051.x ER - TY - JOUR T1 - Coordinated TEM/STXM/IMS analysis of a type IIA chondrule fragment from comet 81P/Wild2 Stardust track C2052, 2, 74 AN - 1438971462; 2013-074858 JF - Meteoritics & Planetary Science AU - Gainsforth, Z AU - Butterworth, A L AU - Bonal, L AU - Brownlee, D E AU - Huss, G R AU - Joswiak, D J AU - Ogliore, R C AU - Telus, M AU - Tyliczszak, T AU - Westphal, A J AU - Anonymous Y1 - 2010/07// PY - 2010 DA - July 2010 SP - 1 PB - Meteoritical Society, Fayetteville, AR VL - 45, SUPPL. SN - 1086-9379, 1086-9379 KW - silicates KW - oxygen KW - scanning transmission X-ray microscopy KW - olivine group KW - iron KW - fugacity KW - meteorites KW - ferric iron KW - pyroxene group KW - clinopyroxene KW - olivine KW - orthosilicates KW - Wild 2 Comet KW - oxides KW - chemical composition KW - glass materials KW - chromium KW - chain silicates KW - Stardust Mission KW - matrix KW - chromite KW - TEM data KW - ferrous iron KW - nesosilicates KW - comets KW - iron sulfides KW - metals KW - chondrules KW - synchrotron X-ray fluorescence microscopy KW - sulfides KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1438971462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Meteoritics+%26+Planetary+Science&rft.atitle=Coordinated+TEM%2FSTXM%2FIMS+analysis+of+a+type+IIA+chondrule+fragment+from+comet+81P%2FWild2+Stardust+track+C2052%2C+2%2C+74&rft.au=Gainsforth%2C+Z%3BButterworth%2C+A+L%3BBonal%2C+L%3BBrownlee%2C+D+E%3BHuss%2C+G+R%3BJoswiak%2C+D+J%3BOgliore%2C+R+C%3BTelus%2C+M%3BTyliczszak%2C+T%3BWestphal%2C+A+J%3BAnonymous&rft.aulast=Gainsforth&rft.aufirst=Z&rft.date=2010-07-01&rft.volume=45%2C+SUPPL.&rft.issue=&rft.spage=A60&rft.isbn=&rft.btitle=&rft.title=Meteoritics+%26+Planetary+Science&rft.issn=10869379&rft_id=info:doi/10.1111%2Fj.1945-5100.2010.01051.x L2 - http://cavern.uark.edu/~meteor/ LA - English DB - GeoRef N1 - Conference title - 73rd annual meeting of the Meteoritical Society N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 6 N1 - PubXState - AR N1 - Last updated - 2013-10-03 N1 - CODEN - MERTAW N1 - SubjectsTermNotLitGenreText - chain silicates; chemical composition; chondrules; chromite; chromium; clinopyroxene; comets; ferric iron; ferrous iron; fugacity; glass materials; iron; iron sulfides; matrix; metals; meteorites; nesosilicates; olivine; olivine group; orthosilicates; oxides; oxygen; pyroxene group; scanning transmission X-ray microscopy; silicates; Stardust Mission; sulfides; synchrotron X-ray fluorescence microscopy; TEM data; Wild 2 Comet DO - http://dx.doi.org/10.1111/j.1945-5100.2010.01051.x ER - TY - CPAPER T1 - SOFC Development at LBNL T2 - 9th European Solid Oxide Fuel Cell Forum (SOFC 2010) AN - 839702590; 5947895 JF - 9th European Solid Oxide Fuel Cell Forum (SOFC 2010) AU - Tucker, Michael AU - DeJonghe, Lutgard Y1 - 2010/06/29/ PY - 2010 DA - 2010 Jun 29 KW - {Q1} KW - Development KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839702590?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=9th+European+Solid+Oxide+Fuel+Cell+Forum+%28SOFC+2010%29&rft.atitle=SOFC+Development+at+LBNL&rft.au=Tucker%2C+Michael%3BDeJonghe%2C+Lutgard&rft.aulast=Tucker&rft.aufirst=Michael&rft.date=2010-06-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=9th+European+Solid+Oxide+Fuel+Cell+Forum+%28SOFC+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.efcf.com/_pdf/2010_posters.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - JOUR T1 - Proceedings of the National Academy of Sciences of the United States of America AN - 1469622117; 2013-096817 JF - Proceedings of the National Academy of Sciences of the United States of America AU - Firestone, Richard B AU - West, Allen AU - Bunch, Ted E Y1 - 2010/06/29/ PY - 2010 DA - 2010 Jun 29 SP - 1 PB - National Academy of Sciences, Washington, DC VL - 107 IS - 26 SN - 0027-8424, 0027-8424 KW - United States KW - ablation KW - Quaternary KW - magnetostratigraphy KW - impacts KW - platinum group KW - iridium KW - magnetic properties KW - upper Pleistocene KW - Cenozoic KW - upper Weichselian KW - Weichselian KW - quantitative analysis KW - metals KW - Arizona KW - sediments KW - Cochise County Arizona KW - Pleistocene KW - stratigraphic boundary KW - Murray Springs Clovis Site KW - Younger Dryas KW - spherules KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1469622117?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.au=Firestone%2C+Richard+B%3BWest%2C+Allen%3BBunch%2C+Ted+E&rft.aulast=Firestone&rft.aufirst=Richard&rft.date=2010-06-29&rft.volume=107&rft.issue=26&rft.spage=E105&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.1003963107 L2 - http://www.ncbi.nlm.nih.gov/pmc/journals/2/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 5 N1 - PubXState - DC N1 - Document feature - 1 table N1 - SuppNotes - For reference to discussion see Haynes, C. V., et. al., Proceedings of the National Academy of Sciences of the United States of America, Vol. 107, No. 9, p. 4010-4015, DOI: 10.1073/pnas.0908191107, 2010; for reference to original see Firestone, R. B., et. al., Proceedings of the National Academy of Sciences of the United States of America, Vol. 104, No. 41, p. 16016-16021, DOI: 10.1073/pnas0706977104, 2007 N1 - Last updated - 2013-12-20 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - ablation; Arizona; Cenozoic; Cochise County Arizona; impacts; iridium; magnetic properties; magnetostratigraphy; metals; Murray Springs Clovis Site; platinum group; Pleistocene; quantitative analysis; Quaternary; sediments; spherules; stratigraphic boundary; United States; upper Pleistocene; upper Weichselian; Weichselian; Younger Dryas DO - http://dx.doi.org/10.1073/pnas.1003963107 ER - TY - CPAPER T1 - Interaction of Cellulase Enzymes With Amorphous Cellulose Films T2 - 5th American Conference on Neutron Scattering (ACNS 2010) AN - 839697132; 5947291 JF - 5th American Conference on Neutron Scattering (ACNS 2010) AU - Kent, Michael AU - Murton, Jaclyn AU - Supratim, Datta AU - Jablin, Michael AU - Majewski, Jaroslaw AU - Halbert, Candice AU - Browning, James Y1 - 2010/06/26/ PY - 2010 DA - 2010 Jun 26 KW - {Q1} KW - Cellulose KW - Enzymes KW - Cellulase KW - Films KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839697132?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=5th+American+Conference+on+Neutron+Scattering+%28ACNS+2010%29&rft.atitle=Interaction+of+Cellulase+Enzymes+With+Amorphous+Cellulose+Films&rft.au=Kent%2C+Michael%3BMurton%2C+Jaclyn%3BSupratim%2C+Datta%3BJablin%2C+Michael%3BMajewski%2C+Jaroslaw%3BHalbert%2C+Candice%3BBrowning%2C+James&rft.aulast=Kent&rft.aufirst=Michael&rft.date=2010-06-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=5th+American+Conference+on+Neutron+Scattering+%28ACNS+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.mrs.org/s_mrs/sec.asp?CID=26005&DID=318841 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - JOUR T1 - High power impulse magnetron sputtering and related discharges: Scalable plasma sources for plasma-based ion implantation and deposition AN - 787214184; 13664371 AB - High power impulse magnetron sputtering (HIPIMS) and related self-sputtering techniques are reviewed from a viewpoint of plasma-based ion implantation and deposition (PBII&D). HIPIMS combines the classical, scalable sputtering technology with pulsed power, which is an elegant way of ionizing the sputtered atoms. Related approaches, such as sustained self-sputtering, are also considered. The resulting intense flux of ions to the substrate consists of a mixture of metal and gas ions when using a process gas, or of metal ions only when using a~gasless' or pure self-sputtering. In many respects, processing with HIPIMS plasmas is similar to processing with filtered cathodic arc plasmas, though the former is easier to scale to large areas. Both ion implantation and etching (high bias voltage and without deposition) and thin film deposition (low bias, or bias of low duty cycle) have been demonstrated. JF - Surface and Coatings Technology AU - Anders, Andre AD - Lawrence Berkeley National Laboratory, Berkeley, California, USA, aanders@lbl.gov Y1 - 2010/06/25/ PY - 2010 DA - 2010 Jun 25 SP - 2864 EP - 2868 PB - Elsevier Science, P.O. Box 564 Lausanne 1 CH-1001 Switzerland VL - 204 IS - 18-19 SN - 0257-8972, 0257-8972 KW - Biotechnology and Bioengineering Abstracts KW - Plasma-based ion implantation and deposition KW - High power impulse magnetron sputtering KW - Review KW - Plasma sources KW - Ions KW - Metals KW - Reviews KW - Etching KW - Coatings KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/787214184?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Surface+and+Coatings+Technology&rft.atitle=High+power+impulse+magnetron+sputtering+and+related+discharges%3A+Scalable+plasma+sources+for+plasma-based+ion+implantation+and+deposition&rft.au=Anders%2C+Andre&rft.aulast=Anders&rft.aufirst=Andre&rft.date=2010-06-25&rft.volume=204&rft.issue=18-19&rft.spage=2864&rft.isbn=&rft.btitle=&rft.title=Surface+and+Coatings+Technology&rft.issn=02578972&rft_id=info:doi/10.1016%2Fj.surfcoat.2010.01.047 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Metals; Ions; Reviews; Etching; Coatings DO - http://dx.doi.org/10.1016/j.surfcoat.2010.01.047 ER - TY - JOUR T1 - Characterization of Tropospheric Emission Spectrometer (TES) CO sub(2) for carbon cycle science AN - 746163601; 13187212 AB - We present carbon dioxide (CO sub(2)) estimates from the Tropospheric Emission Spectrometer (TES) on the EOS-Aura satellite launched in 2004. For observations between 40 degree S and 45 degree N, we find about 1 degree of freedom with peak sensitivity at 511 hPa. The estimated error is ~10 ppm for a single target and 1.3-2.3 ppm for monthly averages on spatial scales of 20 degree 30 degree . Monthly spatially-averaged TES data from 2005-2008 processed with a uniform initial guess and prior are compared to CONTRAIL aircraft data over the Pacific ocean, aircraft data at the Southern Great Plains (SGP) ARM site in the southern US, and the Mauna Loa and Samoa surface stations. Comparisons to Mauna Loa data show a correlation of 0.92, a standard deviation of 1.3 ppm, a predicted error of 1.2 ppm, and a ~2% low bias, which is subsequently corrected. Comparisons to SGP aircraft data over land show a correlation of 0.67 and a standard deviation of 2.3 ppm. TES data between 40 degree S and 45 degree N for 2006-2007 are compared to surface flask data, GLOBALVIEW, the Atmospheric Infrared Sounder (AIRS), and CarbonTracker. Comparison to GLOBALVIEW-CO sub(2) ocean surface sites shows a correlation of 0.60 which drops when TES is offset in latitude, longitude, or time. At these same locations, TES shows a 0.62 and 0.67 correlation to CarbonTracker at the surface and 5 km, respectively. We also conducted an observing system simulation experiment to assess the potential utility of the TES data for inverse modeling of CO sub(2) fluxes. We find that if biases in the data and model are well characterized, the averaged data have the potential to provide sufficient information to significantly reduce uncertainty on annual estimates of regional CO sub(2) sources and sinks. Averaged pseudo-data at 10 degree 10 degree reduced uncertainty in flux estimates by as much as 70% for some tropical regions. JF - Atmospheric Chemistry and Physics AU - Kulawik, S S AU - Jones, DBA AU - Nassar, R AU - Irion, F W AU - Worden, J R AU - Bowman, K W AU - Machida, T AU - Matsueda, H AU - Sawa, Y AU - Biraud, S C AD - Lawrence Berkeley National Laboratory, Earth Sciences Division, Berkeley, CA, USA Y1 - 2010/06/25/ PY - 2010 DA - 2010 Jun 25 SP - 5601 EP - 5623 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 10 IS - 12 SN - 1680-7316, 1680-7316 KW - Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Meteorological data KW - Correlations KW - Contrails KW - Carbon cycle KW - Satellite instrumentation KW - IS, Pacific KW - USA, Great Plains KW - Numerical simulations KW - GLOBALVIEW-CO2 KW - ISE, Pacific, Samoa KW - Atmospheric chemistry KW - Carbon dioxide KW - Carbon dioxide emissions KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746163601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Characterization+of+Tropospheric+Emission+Spectrometer+%28TES%29+CO+sub%282%29+for+carbon+cycle+science&rft.au=Kulawik%2C+S+S%3BJones%2C+DBA%3BNassar%2C+R%3BIrion%2C+F+W%3BWorden%2C+J+R%3BBowman%2C+K+W%3BMachida%2C+T%3BMatsueda%2C+H%3BSawa%2C+Y%3BBiraud%2C+S+C&rft.aulast=Kulawik&rft.aufirst=S&rft.date=2010-06-25&rft.volume=10&rft.issue=12&rft.spage=5601&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Meteorological data; GLOBALVIEW-CO2; Numerical simulations; Atmospheric chemistry; Carbon cycle; Contrails; Correlations; Satellite instrumentation; Carbon dioxide; Carbon dioxide emissions; USA, Great Plains; ISE, Pacific, Samoa; IS, Pacific ER - TY - JOUR T1 - Characterization of Coastal Urban Watershed Bacterial Communities Leads to Alternative Community-Based Indicators AN - 745643818; 13205604 AB - Microbial communities in aquatic environments are spatially and temporally dynamic due to environmental fluctuations and varied external input sources. A large percentage of the urban watersheds in the United States are affected by fecal pollution, including human pathogens, thus warranting comprehensive monitoring. Using a high-density microarray (PhyloChip), we examined water column bacterial community DNA extracted from two connecting urban watersheds, elucidating variable and stable bacterial subpopulations over a 3-day period and community composition profiles that were distinct to fecal and non-fecal sources. Two approaches were used for indication of fecal influence. The first approach utilized similarity of 503 operational taxonomic units (OTUs) common to all fecal samples analyzed in this study with the watershed samples as an index of fecal pollution. A majority of the 503 OTUs were found in the phyla Firmicutes, Proteobacteria, Bacteroidetes, and Actinobacteria. The second approach incorporated relative richness of 4 bacterial classes (Bacilli, Bacteroidetes, Clostridia and a-proteobacteria) found to have the highest variance in fecal and non-fecal samples. The ratio of these 4 classes (BBC[ratio]A) from the watershed samples demonstrated a trend where bacterial communities from gut and sewage sources had higher ratios than from sources not impacted by fecal material. This trend was also observed in the 124 bacterial communities from previously published and unpublished sequencing or PhyloChip- analyzed studies. This study provided a detailed characterization of bacterial community variability during dry weather across a 3-day period in two urban watersheds. The comparative analysis of watershed community composition resulted in alternative community-based indicators that could be useful for assessing ecosystem health. JF - PLoS ONE AU - Wu, Cindy H AU - Sercu, Bram AU - Van De Werfhorst, Laurie C AU - Wong, Jakk AU - DeSantis, Todd Z AU - Brodie, Eoin L AU - Hazen, Terry C AU - Holden, Patricia A AU - Andersen, Gary L AD - Ecology Department, Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, United States of America Y1 - 2010/06/23/ PY - 2010 DA - 2010 Jun 23 PB - BioMed Central Ltd., Middlesex House London W1T 4LB UK VL - 5 IS - 6 KW - Ecology Abstracts; Microbiology Abstracts B: Bacteriology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Aquatic environment KW - Bacilli KW - Community composition KW - DNA KW - Digestive tract KW - Pathogens KW - Pollution KW - Sewage KW - Subpopulations KW - Water column KW - Watersheds KW - Weather KW - Firmicutes KW - Proteobacteria KW - Actinobacteria KW - J 02310:Genetics & Taxonomy KW - D 04070:Pollution KW - A 01450:Environmental Pollution & Waste Treatment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745643818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=PLoS+ONE&rft.atitle=Characterization+of+Coastal+Urban+Watershed+Bacterial+Communities+Leads+to+Alternative+Community-Based+Indicators&rft.au=Wu%2C+Cindy+H%3BSercu%2C+Bram%3BVan+De+Werfhorst%2C+Laurie+C%3BWong%2C+Jakk%3BDeSantis%2C+Todd+Z%3BBrodie%2C+Eoin+L%3BHazen%2C+Terry+C%3BHolden%2C+Patricia+A%3BAndersen%2C+Gary+L&rft.aulast=Wu&rft.aufirst=Cindy&rft.date=2010-06-23&rft.volume=5&rft.issue=6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=PLoS+ONE&rft.issn=1932-6203&rft_id=info:doi/10.1371%2Fjournal.pone.0011285 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2013-01-25 N1 - SubjectsTermNotLitGenreText - Bacilli; Weather; Community composition; Digestive tract; Sewage; Subpopulations; DNA; Pathogens; Watersheds; Aquatic environment; Water column; Pollution; Actinobacteria; Firmicutes; Proteobacteria DO - http://dx.doi.org/10.1371/journal.pone.0011285 ER - TY - CPAPER T1 - Experiences with UPC at Scale T2 - 9th International Meeting on High Performance Computing for Computational Science (VECPAR 2010) AN - 839658882; 5909608 JF - 9th International Meeting on High Performance Computing for Computational Science (VECPAR 2010) AU - Zheng, Yili Y1 - 2010/06/22/ PY - 2010 DA - 2010 Jun 22 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839658882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=9th+International+Meeting+on+High+Performance+Computing+for+Computational+Science+%28VECPAR+2010%29&rft.atitle=Experiences+with+UPC+at+Scale&rft.au=Zheng%2C+Yili&rft.aulast=Zheng&rft.aufirst=Yili&rft.date=2010-06-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=9th+International+Meeting+on+High+Performance+Computing+for+Computational+Science+%28VECPAR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://vecpar.fe.up.pt/2010/workshops-PE.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Lattice Boltzmann Hybrid Auto-Tuning on High-End Computational Platforms T2 - 9th International Meeting on High Performance Computing for Computational Science (VECPAR 2010) AN - 839658129; 5909606 JF - 9th International Meeting on High Performance Computing for Computational Science (VECPAR 2010) AU - Williams, Sam Y1 - 2010/06/22/ PY - 2010 DA - 2010 Jun 22 KW - {Q1} KW - Hybrids KW - Computer applications KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839658129?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=9th+International+Meeting+on+High+Performance+Computing+for+Computational+Science+%28VECPAR+2010%29&rft.atitle=Lattice+Boltzmann+Hybrid+Auto-Tuning+on+High-End+Computational+Platforms&rft.au=Williams%2C+Sam&rft.aulast=Williams&rft.aufirst=Sam&rft.date=2010-06-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=9th+International+Meeting+on+High+Performance+Computing+for+Computational+Science+%28VECPAR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://vecpar.fe.up.pt/2010/workshops-PE.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - On Techniques to Improve the Robustness and Scalability of the Schur Complement Method T2 - 9th International Meeting on High Performance Computing for Computational Science (VECPAR 2010) AN - 839645504; 5909656 JF - 9th International Meeting on High Performance Computing for Computational Science (VECPAR 2010) AU - Yamazaki, Ichitaro AU - Li, Xiaoye Y1 - 2010/06/22/ PY - 2010 DA - 2010 Jun 22 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839645504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=9th+International+Meeting+on+High+Performance+Computing+for+Computational+Science+%28VECPAR+2010%29&rft.atitle=On+Techniques+to+Improve+the+Robustness+and+Scalability+of+the+Schur+Complement+Method&rft.au=Yamazaki%2C+Ichitaro%3BLi%2C+Xiaoye&rft.aulast=Yamazaki&rft.aufirst=Ichitaro&rft.date=2010-06-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=9th+International+Meeting+on+High+Performance+Computing+for+Computational+Science+%28VECPAR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://vecpar.fe.up.pt/2010/program.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Exascale Computing T2 - 9th International Meeting on High Performance Computing for Computational Science (VECPAR 2010) AN - 839637013; 5909660 JF - 9th International Meeting on High Performance Computing for Computational Science (VECPAR 2010) AU - Shalf, John Y1 - 2010/06/22/ PY - 2010 DA - 2010 Jun 22 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839637013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=9th+International+Meeting+on+High+Performance+Computing+for+Computational+Science+%28VECPAR+2010%29&rft.atitle=Exascale+Computing&rft.au=Shalf%2C+John&rft.aulast=Shalf&rft.aufirst=John&rft.date=2010-06-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=9th+International+Meeting+on+High+Performance+Computing+for+Computational+Science+%28VECPAR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://vecpar.fe.up.pt/2010/program.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Monolithic Polymer Layers for Separation of Peptides and Oligonucleotides Using Pressurized Planar Electrophoresis and Electrochromatography T2 - 35th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2010) AN - 839602130; 5882344 JF - 35th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2010) AU - Urbanova, Iva AU - Woodward, Scott AU - Nurok, David AU - Svec, Frantisek Y1 - 2010/06/19/ PY - 2010 DA - 2010 Jun 19 KW - {Q1} KW - Electrophoresis KW - Polymers KW - Oligonucleotides KW - Peptides KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839602130?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=35th+International+Symposium+on+High+Performance+Liquid+Phase+Separations+and+Related+Techniques+%28HPLC+2010%29&rft.atitle=Monolithic+Polymer+Layers+for+Separation+of+Peptides+and+Oligonucleotides+Using+Pressurized+Planar+Electrophoresis+and+Electrochromatography&rft.au=Urbanova%2C+Iva%3BWoodward%2C+Scott%3BNurok%2C+David%3BSvec%2C+Frantisek&rft.aulast=Urbanova&rft.aufirst=Iva&rft.date=2010-06-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=35th+International+Symposium+on+High+Performance+Liquid+Phase+Separations+and+Related+Techniques+%28HPLC+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.casss.org/associations/9165/files/HPLC%202010%20Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Porous Polymer Monoliths with Tailored Porous Properties and Chemistry T2 - 35th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2010) AN - 839594285; 5882108 JF - 35th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2010) AU - Svec, Frantisek Y1 - 2010/06/19/ PY - 2010 DA - 2010 Jun 19 KW - {Q1} KW - Polymers KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839594285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=35th+International+Symposium+on+High+Performance+Liquid+Phase+Separations+and+Related+Techniques+%28HPLC+2010%29&rft.atitle=Porous+Polymer+Monoliths+with+Tailored+Porous+Properties+and+Chemistry&rft.au=Svec%2C+Frantisek&rft.aulast=Svec&rft.aufirst=Frantisek&rft.date=2010-06-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=35th+International+Symposium+on+High+Performance+Liquid+Phase+Separations+and+Related+Techniques+%28HPLC+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.casss.org/associations/9165/files/HPLC%202010%20Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - High Binding Capacity Monolithic Columns with Grafted Functionalities for Ion Exchange Chromatography of Proteins T2 - 35th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2010) AN - 839593761; 5882521 JF - 35th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2010) AU - Krenkova, Jana AU - Gargano, Andrea AU - Svec, Frantisek Y1 - 2010/06/19/ PY - 2010 DA - 2010 Jun 19 KW - {Q1} KW - Chromatography KW - Ion exchange KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839593761?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=35th+International+Symposium+on+High+Performance+Liquid+Phase+Separations+and+Related+Techniques+%28HPLC+2010%29&rft.atitle=High+Binding+Capacity+Monolithic+Columns+with+Grafted+Functionalities+for+Ion+Exchange+Chromatography+of+Proteins&rft.au=Krenkova%2C+Jana%3BGargano%2C+Andrea%3BSvec%2C+Frantisek&rft.aulast=Krenkova&rft.aufirst=Jana&rft.date=2010-06-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=35th+International+Symposium+on+High+Performance+Liquid+Phase+Separations+and+Related+Techniques+%28HPLC+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.casss.org/associations/9165/files/HPLC%202010%20Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Monolithic Capillary Column Containing Hydroxyapatite Nanoparticles for Protein Separation and Phosphopeptide Enrichment T2 - 35th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2010) AN - 839593414; 5882436 JF - 35th International Symposium on High Performance Liquid Phase Separations and Related Techniques (HPLC 2010) AU - Krenkova, Jana AU - Svec, Frantisek Y1 - 2010/06/19/ PY - 2010 DA - 2010 Jun 19 KW - {Q1} KW - Protein purification KW - Hydroxyapatite KW - Nanoparticles KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839593414?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=35th+International+Symposium+on+High+Performance+Liquid+Phase+Separations+and+Related+Techniques+%28HPLC+2010%29&rft.atitle=Monolithic+Capillary+Column+Containing+Hydroxyapatite+Nanoparticles+for+Protein+Separation+and+Phosphopeptide+Enrichment&rft.au=Krenkova%2C+Jana%3BSvec%2C+Frantisek&rft.aulast=Krenkova&rft.aufirst=Jana&rft.date=2010-06-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=35th+International+Symposium+on+High+Performance+Liquid+Phase+Separations+and+Related+Techniques+%28HPLC+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.casss.org/associations/9165/files/HPLC%202010%20Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - JOUR T1 - Sparse multitask regression for identifying common mechanism of response to therapeutic targets AN - 746307486; 13114573 AB - Motivation: Molecular association of phenotypic responses is an important step in hypothesis generation and for initiating design of new experiments. Current practices for associating gene expression data with multidimensional phenotypic data are typically (i) performed one-to-one, i.e. each gene is examined independently with a phenotypic index and (ii) tested with one stress condition at a time, i.e. different perturbations are analyzed separately. As a result, the complex coordination among the genes responsible for a phenotypic profile is potentially lost. More importantly, univariate analysis can potentially hide new insights into common mechanism of response.Results: In this article, we propose a sparse, multitask regression model together with co-clustering analysis to explore the intrinsic grouping in associating the gene expression with phenotypic signatures. The global structure of association is captured by learning an intrinsic template that is shared among experimental conditions, with local perturbations introduced to integrate effects of therapeutic agents. We demonstrate the performance of our approach on both synthetic and experimental data. Synthetic data reveal that the multi-task regression has a superior reduction in the regression error when compared with traditional L sub(1)-and L sub(2)-regularized regression. On the other hand, experiments with cell cycle inhibitors over a panel of 14 breast cancer cell lines demonstrate the relevance of the computed molecular predictors with the cell cycle machinery, as well as the identification of hidden variables that are not captured by the baseline regression analysis. Accordingly, the system has identified CLCA2 as a hidden transcript and as a common mechanism of response for two therapeutic agents of CI-1040 and Iressa, which are currently in clinical use.Contact: b_parvinbl.gov JF - Bioinformatics AU - Zhang, Kai AU - Gray, Joe W AU - Parvin, Bahram AD - Life Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA Y1 - 2010/06/15/ PY - 2010 DA - 2010 Jun 15 SP - i97 EP - i105 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 26 IS - 12 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts KW - Gene expression KW - Tumor cell lines KW - Learning KW - Data processing KW - chloride channels (calcium-gated) KW - Cell cycle KW - Regression analysis KW - Transcription KW - Breast cancer KW - Stress KW - Bioinformatics KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746307486?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Sparse+multitask+regression+for+identifying+common+mechanism+of+response+to+therapeutic+targets&rft.au=Zhang%2C+Kai%3BGray%2C+Joe+W%3BParvin%2C+Bahram&rft.aulast=Zhang&rft.aufirst=Kai&rft.date=2010-06-15&rft.volume=26&rft.issue=12&rft.spage=i97&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/10.1093%2Fbioinformatics%2Fbtq181 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Gene expression; Learning; Tumor cell lines; Data processing; chloride channels (calcium-gated); Cell cycle; Regression analysis; Stress; Breast cancer; Transcription; Bioinformatics DO - http://dx.doi.org/10.1093/bioinformatics/btq181 ER - TY - CPAPER T1 - Effect of Combustor Inlet Geometry on Acoustic Signature and Flow Field Behavior of the Low Swirl Injector T2 - ASME Turbo Expo 2010 AN - 839658652; 5902247 JF - ASME Turbo Expo 2010 AU - Therkelsen, Peter AU - Littlejohn, Robert AU - Cheng, Robert AU - Portillo, Enrique AU - Martin, Scott Y1 - 2010/06/14/ PY - 2010 DA - 2010 Jun 14 KW - {Q1} KW - Acoustics KW - Coastal inlets KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839658652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=ASME+Turbo+Expo+2010&rft.atitle=Effect+of+Combustor+Inlet+Geometry+on+Acoustic+Signature+and+Flow+Field+Behavior+of+the+Low+Swirl+Injector&rft.au=Therkelsen%2C+Peter%3BLittlejohn%2C+Robert%3BCheng%2C+Robert%3BPortillo%2C+Enrique%3BMartin%2C+Scott&rft.aulast=Therkelsen&rft.aufirst=Peter&rft.date=2010-06-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=ASME+Turbo+Expo+2010&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/TE10/pdfs/TE10_FinalProgram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Conceptual Studies of a Fuel- Flexible Low-Swirl Combustion System for the Gas Turbine in Clean Coal Power Plants T2 - ASME Turbo Expo 2010 AN - 839638015; 5902414 JF - ASME Turbo Expo 2010 AU - Smith, Ken AU - Therkelsen, Peter AU - Littlejohn, David AU - Cheng, Robert AU - Ali, Sy Y1 - 2010/06/14/ PY - 2010 DA - 2010 Jun 14 KW - {Q1} KW - Gas turbines KW - Coal KW - Combustion KW - Power plants KW - Turbines KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839638015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=ASME+Turbo+Expo+2010&rft.atitle=Conceptual+Studies+of+a+Fuel-+Flexible+Low-Swirl+Combustion+System+for+the+Gas+Turbine+in+Clean+Coal+Power+Plants&rft.au=Smith%2C+Ken%3BTherkelsen%2C+Peter%3BLittlejohn%2C+David%3BCheng%2C+Robert%3BAli%2C+Sy&rft.aulast=Smith&rft.aufirst=Ken&rft.date=2010-06-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=ASME+Turbo+Expo+2010&rft.issn=&rft_id=info:doi/ L2 - http://www.asmeconferences.org/TE10/pdfs/TE10_FinalProgram.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - A Principled Kernel Testbed for Hardware/Software Co-Design Research T2 - 2nd USENIX Workshop on Hot Topics in Parallelism (HotPar '10) AN - 754304740; 5856583 JF - 2nd USENIX Workshop on Hot Topics in Parallelism (HotPar '10) AU - Kaiser, Alex AU - Williams, Samuel AU - Madduri, Kamesh AU - Ibrahim, Khaled AU - Bailey, David AU - Demmel, James AU - Strohmaier, Erich Y1 - 2010/06/14/ PY - 2010 DA - 2010 Jun 14 KW - Computer programs KW - Software KW - Kernels KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754304740?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2nd+USENIX+Workshop+on+Hot+Topics+in+Parallelism+%28HotPar+%2710%29&rft.atitle=A+Principled+Kernel+Testbed+for+Hardware%2FSoftware+Co-Design+Research&rft.au=Kaiser%2C+Alex%3BWilliams%2C+Samuel%3BMadduri%2C+Kamesh%3BIbrahim%2C+Khaled%3BBailey%2C+David%3BDemmel%2C+James%3BStrohmaier%2C+Erich&rft.aulast=Kaiser&rft.aufirst=Alex&rft.date=2010-06-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2nd+USENIX+Workshop+on+Hot+Topics+in+Parallelism+%28HotPar+%2710%29&rft.issn=&rft_id=info:doi/ L2 - http://www.usenix.org/events/hotpar10/tech/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - The Speciation of Organic Matter in Soil Mineral Organic Associations - Inference from STXM and N, C and Fe NEXAFS T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839705961; 5943148 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Nico, P AU - Keiluweit, M AU - Kleber, M AU - Hatton, P-J AU - Zeller, B AU - Derrien, D Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Organic matter KW - Soil KW - Minerals KW - Speciation KW - Soils (organic) KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839705961?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=The+Speciation+of+Organic+Matter+in+Soil+Mineral+Organic+Associations+-+Inference+from+STXM+and+N%2C+C+and+Fe+NEXAFS&rft.au=Nico%2C+P%3BKeiluweit%2C+M%3BKleber%2C+M%3BHatton%2C+P-J%3BZeller%2C+B%3BDerrien%2C+D&rft.aulast=Nico&rft.aufirst=P&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Spectro-Microscopy of Carbonaceous Particulates T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839702488; 5942524 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Gilles, M AU - Moffet, R AU - Laskin, A Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Particulates KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839702488?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Spectro-Microscopy+of+Carbonaceous+Particulates&rft.au=Gilles%2C+M%3BMoffet%2C+R%3BLaskin%2C+A&rft.aulast=Gilles&rft.aufirst=M&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Influence of MgO Nanoparticle Size on Available Surface Area for Carbonation T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839697569; 5944037 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Ruminski, A AU - Urban, J Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Surface area KW - Nanoparticles KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839697569?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Influence+of+MgO+Nanoparticle+Size+on+Available+Surface+Area+for+Carbonation&rft.au=Ruminski%2C+A%3BUrban%2C+J&rft.aulast=Ruminski&rft.aufirst=A&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Radiogenic and Non-Traditional Isotopic Tracers of Subsurface CO2 T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839696781; 5943084 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - DePaolo, D AU - Christensen, J AU - Conrad, M Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Tracers KW - Carbon dioxide KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839696781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Radiogenic+and+Non-Traditional+Isotopic+Tracers+of+Subsurface+CO2&rft.au=DePaolo%2C+D%3BChristensen%2C+J%3BConrad%2C+M&rft.aulast=DePaolo&rft.aufirst=D&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Modeling Mineral Aging in the Critical Zone T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839696549; 5943199 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Steefel, C Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Aging KW - Minerals KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839696549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Modeling+Mineral+Aging+in+the+Critical+Zone&rft.au=Steefel%2C+C&rft.aulast=Steefel&rft.aufirst=C&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Hydrogeophysical Quantification of Plume-Scale Flow Architecture and Recharge Processes T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839695845; 5943350 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Hubbard, S AU - Gaines, D AU - Smith, M AU - Brooks, S AU - Watson, D AU - Baker, G AU - Chen, J AU - Kowalsky, M AU - Gasperikova, E Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839695845?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Hydrogeophysical+Quantification+of+Plume-Scale+Flow+Architecture+and+Recharge+Processes&rft.au=Hubbard%2C+S%3BGaines%2C+D%3BSmith%2C+M%3BBrooks%2C+S%3BWatson%2C+D%3BBaker%2C+G%3BChen%2C+J%3BKowalsky%2C+M%3BGasperikova%2C+E&rft.aulast=Hubbard&rft.aufirst=S&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - NanoSIP: Combining Stable Isotope Probing and High Resolution Secondary Ion Mass Spectrometry to Identify Diazotrophs in Stratified Marine Microbial Communities T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839695315; 5942242 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Singer, S AU - Woebken, D AU - Burow, L AU - Prufert-Bebout, L AU - Bebout, B AU - Hoehler, T AU - Pett-Ridge, J AU - Spormann, A AU - Weber, P Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Mass spectroscopy KW - Isotopes KW - Microbial activity KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839695315?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=NanoSIP%3A+Combining+Stable+Isotope+Probing+and+High+Resolution+Secondary+Ion+Mass+Spectrometry+to+Identify+Diazotrophs+in+Stratified+Marine+Microbial+Communities&rft.au=Singer%2C+S%3BWoebken%2C+D%3BBurow%2C+L%3BPrufert-Bebout%2C+L%3BBebout%2C+B%3BHoehler%2C+T%3BPett-Ridge%2C+J%3BSpormann%2C+A%3BWeber%2C+P&rft.aulast=Singer&rft.aufirst=S&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Going Deep: Elemental Distribution, Speciation and Redox States in a Marine Ferromanganese Nodule T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839695260; 5942520 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Marcus, M AU - Fakra, S AU - Toner, B AU - Horn, G AU - Edwards, K Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Speciation KW - Nodules KW - Redox properties KW - Redox reactions KW - Ferromanganese nodules KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839695260?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Going+Deep%3A+Elemental+Distribution%2C+Speciation+and+Redox+States+in+a+Marine+Ferromanganese+Nodule&rft.au=Marcus%2C+M%3BFakra%2C+S%3BToner%2C+B%3BHorn%2C+G%3BEdwards%2C+K&rft.aulast=Marcus&rft.aufirst=M&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Observing Iron Redox Dynamics at the Nanosecond Scale with Time-Resolved X-Ray Spectroscopy T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839695042; 5943127 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Gilbert, B AU - Katz, J AU - Zhang, H AU - Banfield, J AU - Falcone, R AU - Waychunas, G Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - X-ray spectroscopy KW - Iron KW - Ionizing radiation KW - Spectroscopy KW - Redox reactions KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839695042?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Observing+Iron+Redox+Dynamics+at+the+Nanosecond+Scale+with+Time-Resolved+X-Ray+Spectroscopy&rft.au=Gilbert%2C+B%3BKatz%2C+J%3BZhang%2C+H%3BBanfield%2C+J%3BFalcone%2C+R%3BWaychunas%2C+G&rft.aulast=Gilbert&rft.aufirst=B&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Molecular Dynamics Simulations of Brine-Clay Interfaces: Implications for CO2 Storage in Saline Aquifers T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839692810; 5943374 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Bourg, I AU - Sposito, G Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Aquifers KW - Storage KW - Simulation KW - Carbon dioxide KW - Ground water KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839692810?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Molecular+Dynamics+Simulations+of+Brine-Clay+Interfaces%3A+Implications+for+CO2+Storage+in+Saline+Aquifers&rft.au=Bourg%2C+I%3BSposito%2C+G&rft.aulast=Bourg&rft.aufirst=I&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Modeling UO2 Bioprecipitation and Reoxidation by Fe(III) (Hydr)oxides T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839691583; 5942398 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Spycher, N AU - Issarangkun, M AU - Stewart, B AU - Sengor, S AU - Ginn, T AU - Sani, R AU - Peyton, B Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Reoxidation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839691583?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Modeling+UO2+Bioprecipitation+and+Reoxidation+by+Fe%28III%29+%28Hydr%29oxides&rft.au=Spycher%2C+N%3BIssarangkun%2C+M%3BStewart%2C+B%3BSengor%2C+S%3BGinn%2C+T%3BSani%2C+R%3BPeyton%2C+B&rft.aulast=Spycher&rft.aufirst=N&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Uranium Isotopic Systematics of the 300 Area (Hanford, WA) Groundwater Plume and U-Contaminated Sediments T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839690235; 5943900 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Christensen, J AU - McKinley, J AU - Conrad, M AU - Stoliker, D AU - Dresel, P AU - DePaolo, D AU - Zachara, J Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - USA, Washington, Hanford KW - Sediments KW - Plumes KW - Ground water KW - Uranium KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839690235?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Uranium+Isotopic+Systematics+of+the+300+Area+%28Hanford%2C+WA%29+Groundwater+Plume+and+U-Contaminated+Sediments&rft.au=Christensen%2C+J%3BMcKinley%2C+J%3BConrad%2C+M%3BStoliker%2C+D%3BDresel%2C+P%3BDePaolo%2C+D%3BZachara%2C+J&rft.aulast=Christensen&rft.aufirst=J&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Formation of Selenium Nanospheres Accompanying Bioremediation of a Uranium-Contaminated Aquifer T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839689647; 5942374 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Williams K, H AU - N'Guessan, A AU - Wilkins, M AU - Long, P Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Bioremediation KW - Aquifers KW - Selenium KW - Ground water KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839689647?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Formation+of+Selenium+Nanospheres+Accompanying+Bioremediation+of+a+Uranium-Contaminated+Aquifer&rft.au=Williams+K%2C+H%3BN%27Guessan%2C+A%3BWilkins%2C+M%3BLong%2C+P&rft.aulast=Williams+K&rft.aufirst=H&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Solution Scattering Combined with Crystallography and Computation: Defining Dynamic Macromolecular Structures T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839686682; 5942066 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Hammel, Michal Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Crystallography KW - Macromolecules KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839686682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Solution+Scattering+Combined+with+Crystallography+and+Computation%3A+Defining+Dynamic+Macromolecular+Structures&rft.au=Hammel%2C+Michal&rft.aulast=Hammel&rft.aufirst=Michal&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Calcium Isotope Fractionation in Ocean Ridge Hydrothermal Systems T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839685521; 5943218 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Brown, S AU - DePaolo, D AU - Turchyn, A AU - Alt, J Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Ridges KW - Isotopes KW - Fractionation KW - Oceans KW - Calcium KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839685521?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Calcium+Isotope+Fractionation+in+Ocean+Ridge+Hydrothermal+Systems&rft.au=Brown%2C+S%3BDePaolo%2C+D%3BTurchyn%2C+A%3BAlt%2C+J&rft.aulast=Brown&rft.aufirst=S&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Applications of LA-ICP-MS in Geoanalysis - New Technologies and Future Perspectives T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839684591; 5942406 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Russo, R AU - Gonzalez, J Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Technology KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839684591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Applications+of+LA-ICP-MS+in+Geoanalysis+-+New+Technologies+and+Future+Perspectives&rft.au=Russo%2C+R%3BGonzalez%2C+J&rft.aulast=Russo&rft.aufirst=R&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - A Perspective on Nanominerals and Their Roles in Microbial Ecosystesms T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839683226; 5942073 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Banfield, Jillian AU - Zhang, Hengzhong AU - Gilbert, Benjamin AU - Singer, Steven AU - Williams, Kenneth AU - Waychunas, Glenn Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839683226?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=A+Perspective+on+Nanominerals+and+Their+Roles+in+Microbial+Ecosystesms&rft.au=Banfield%2C+Jillian%3BZhang%2C+Hengzhong%3BGilbert%2C+Benjamin%3BSinger%2C+Steven%3BWilliams%2C+Kenneth%3BWaychunas%2C+Glenn&rft.aulast=Banfield&rft.aufirst=Jillian&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Kinetic Theory of Isotopic and Trace Element Partitioning between Calcite and Aqueous Solution T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839683014; 5942940 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - DePaolo, D Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Kinetics KW - Trace elements KW - Calcite KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839683014?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Kinetic+Theory+of+Isotopic+and+Trace+Element+Partitioning+between+Calcite+and+Aqueous+Solution&rft.au=DePaolo%2C+D&rft.aulast=DePaolo&rft.aufirst=D&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Systems Biology Approach to Bioremediation: Omics and Hydrobiogeochemical Processes T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839682028; 5942895 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Hazen, T Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Bioremediation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839682028?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Systems+Biology+Approach+to+Bioremediation%3A+Omics+and+Hydrobiogeochemical+Processes&rft.au=Hazen%2C+T&rft.aulast=Hazen&rft.aufirst=T&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Nanoparticle Surface Properties Deduced from Single Crystal Mineral/Water Interface Studies T2 - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AN - 839680916; 5942071 JF - 2010 Annual V.M. Goldschmidt Conference (Goldschmidt(TM)2010) AU - Waychunas, G AU - Sung, J AU - Shen, Y Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - {Q1} KW - Minerals KW - Crystals KW - Surface properties KW - Nanoparticles KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839680916?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.atitle=Nanoparticle+Surface+Properties+Deduced+from+Single+Crystal+Mineral%2FWater+Interface+Studies&rft.au=Waychunas%2C+G%3BSung%2C+J%3BShen%2C+Y&rft.aulast=Waychunas&rft.aufirst=G&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+V.M.+Goldschmidt+Conference+%28Goldschmidt%28TM%292010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.goldschmidt2010.org/program/index LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Synthetic Biology for Synthetic Fuels T2 - VIII Metabolic Engineering Conference: Metabolic Engineering for Green Growth AN - 754314066; 5868366 JF - VIII Metabolic Engineering Conference: Metabolic Engineering for Green Growth AU - Keasling, Jay Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - Fuels KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754314066?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=VIII+Metabolic+Engineering+Conference%3A+Metabolic+Engineering+for+Green+Growth&rft.atitle=Synthetic+Biology+for+Synthetic+Fuels&rft.au=Keasling%2C+Jay&rft.aulast=Keasling&rft.aufirst=Jay&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=VIII+Metabolic+Engineering+Conference%3A+Metabolic+Engineering+for+Green+Growth&rft.issn=&rft_id=info:doi/ L2 - http://www.engconfintl.org/10ayfin.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - MRM-based mass spectrometry for rapid pathway optimization: Improving protein production T2 - VIII Metabolic Engineering Conference: Metabolic Engineering for Green Growth AN - 754313287; 5868492 JF - VIII Metabolic Engineering Conference: Metabolic Engineering for Green Growth AU - Redding Johanson, Alyssa Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - Mass spectroscopy KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754313287?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=VIII+Metabolic+Engineering+Conference%3A+Metabolic+Engineering+for+Green+Growth&rft.atitle=MRM-based+mass+spectrometry+for+rapid+pathway+optimization%3A+Improving+protein+production&rft.au=Redding+Johanson%2C+Alyssa&rft.aulast=Redding+Johanson&rft.aufirst=Alyssa&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=VIII+Metabolic+Engineering+Conference%3A+Metabolic+Engineering+for+Green+Growth&rft.issn=&rft_id=info:doi/ L2 - http://www.engconfintl.org/10ayfin.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Engineering E. coli for the production of diacid polymer precursors T2 - VIII Metabolic Engineering Conference: Metabolic Engineering for Green Growth AN - 754313261; 5868520 JF - VIII Metabolic Engineering Conference: Metabolic Engineering for Green Growth AU - Fortman, Jeffrey Y1 - 2010/06/13/ PY - 2010 DA - 2010 Jun 13 KW - Polymers KW - Escherichia coli KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754313261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=VIII+Metabolic+Engineering+Conference%3A+Metabolic+Engineering+for+Green+Growth&rft.atitle=Engineering+E.+coli+for+the+production+of+diacid+polymer+precursors&rft.au=Fortman%2C+Jeffrey&rft.aulast=Fortman&rft.aufirst=Jeffrey&rft.date=2010-06-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=VIII+Metabolic+Engineering+Conference%3A+Metabolic+Engineering+for+Green+Growth&rft.issn=&rft_id=info:doi/ L2 - http://www.engconfintl.org/10ayfin.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Quantifying seasonal influence of stratiform mixed-phase clouds on Arctic sea ice growth rates T2 - 2010 International Polar Year Oslo Science Conference AN - 839692680; 5918265 JF - 2010 International Polar Year Oslo Science Conference AU - de Boer, G. AU - Collins, W D AU - Menon, S AU - Hunke, E AU - Eloranta, E W Y1 - 2010/06/08/ PY - 2010 DA - 2010 Jun 08 KW - {Q1} KW - Arctic KW - Seasonal variations KW - Sea ice KW - Polar environments KW - Growth rate KW - Clouds KW - Sulfur dioxide KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839692680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+International+Polar+Year+Oslo+Science+Conference&rft.atitle=Quantifying+seasonal+influence+of+stratiform+mixed-phase+clouds+on+Arctic+sea+ice+growth+rates&rft.au=de+Boer%2C+G.%3BCollins%2C+W+D%3BMenon%2C+S%3BHunke%2C+E%3BEloranta%2C+E+W&rft.aulast=de+Boer&rft.aufirst=G.&rft.date=2010-06-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+International+Polar+Year+Oslo+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://ipy-osc.no/osc_programme LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - JOUR T1 - Electrodic voltages accompanying stimulated bioremediation of a uranium-contaminated aquifer AN - 754563026; 13369940 AB - The inability to track the products of subsurface microbial activity during stimulated bioremediation has limited its implementation. We used spatiotemporal changes in electrodic potentials (EP) to track the onset and persistence of stimulated sulfate-reducing bacteria in a uranium-contaminated aquifer undergoing acetate amendment. Following acetate injection, anomalous voltages approaching -900 mV were measured between copper electrodes within the aquifer sediments and a single reference electrode at the ground surface. Onset of EP anomalies correlated in time with both the accumulation of dissolved sulfide and the removal of uranium from groundwater. The anomalies persisted for 45 days after halting acetate injection. Current-voltage and current-power relationships between measurement and reference electrodes exhibited a galvanic response, with a maximum power density of 10 mW/m2 during sulfate reduction. We infer that the EP anomalies resulted from electrochemical differences between geochemically reduced regions and areas having higher oxidation potential. Following the period of sulfate reduction, EP values ranged from -500 to -600 mV and were associated with elevated concentrations of ferrous iron. Within 10 days of the voltage decrease, uranium concentrations rebounded from 0.2 to 0.8 kM, a level still below the background value of 1.5 kM. These findings demonstrate that EP measurements provide an inexpensive and minimally invasive means for monitoring the products of stimulated microbial activity within aquifer sediments and are capable of verifying maintenance of redox conditions favorable for the stability of bioreduced contaminants, such as uranium. JF - Journal of Geophysical Research. G. Biogeosciences AU - Williams, Kenneth H AU - N'Guessan, ALucie AU - Druhan, Jennifer AU - Long, Philip E AU - Hubbard, Susan S AU - Lovley, Derek R AU - Banfield, Jillian F AD - Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2010/06/08/ PY - 2010 DA - 2010 Jun 08 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 115 IS - G00 SN - 2169-8953, 2169-8953 KW - Biotechnology and Bioengineering Abstracts; Ecology Abstracts; Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - 0416 Biogeosciences: Biogeophysics KW - 0418 Biogeosciences: Bioremediation KW - 5194 Physical Properties of Rocks: Instruments and techniques KW - biogeophysics KW - electrode potential KW - self potential KW - bioremediation KW - galvanic cell KW - Sulfates KW - Aquifers KW - Aquifer KW - Pollution monitoring KW - Bioremediation KW - Sulfate reduction KW - Groundwater Pollution KW - Copper KW - Sulphides KW - Uranium KW - Ground water KW - Sediment chemistry KW - Sediment pollution KW - Redox reactions KW - Sulfate-reducing bacteria KW - Water Pollution Treatment KW - Acetic acid KW - Sediments KW - Sulfide KW - Oxidation KW - Electrodes KW - Acetate KW - Microorganisms KW - Groundwater KW - Contaminants KW - Iron KW - W 30950:Waste Treatment & Pollution Clean-up KW - AQ 00006:Sewage KW - SW 3010:Identification of pollutants KW - D 04040:Ecosystem and Ecology Studies KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754563026?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.atitle=Electrodic+voltages+accompanying+stimulated+bioremediation+of+a+uranium-contaminated+aquifer&rft.au=Williams%2C+Kenneth+H%3BN%27Guessan%2C+ALucie%3BDruhan%2C+Jennifer%3BLong%2C+Philip+E%3BHubbard%2C+Susan+S%3BLovley%2C+Derek+R%3BBanfield%2C+Jillian+F&rft.aulast=Williams&rft.aufirst=Kenneth&rft.date=2010-06-08&rft.volume=115&rft.issue=G00&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.issn=21698953&rft_id=info:doi/10.1029%2F2009JG001142 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Sulphides; Redox reactions; Sediment pollution; Pollution monitoring; Sediment chemistry; Aquifer; Bioremediation; Uranium; Acetate; Aquifers; Sulfate-reducing bacteria; Sulfate reduction; Copper; Acetic acid; Sediments; Sulfide; Electrodes; Oxidation; Ground water; Contaminants; Iron; Sulfates; Water Pollution Treatment; Microorganisms; Groundwater Pollution; Groundwater DO - http://dx.doi.org/10.1029/2009JG001142 ER - TY - CPAPER T1 - Understanding the Influence of Aerosol Properties on Immersion Freezing in Mixed-Phase Stratiform Clouds T2 - 2010 International Polar Year Oslo Science Conference AN - 754313420; 5867830 JF - 2010 International Polar Year Oslo Science Conference AU - de Boer, G. AU - Hashino, T AU - Tripoli, G J AU - Eloranta, E W Y1 - 2010/06/08/ PY - 2010 DA - 2010 Jun 08 KW - Aerosols KW - Clouds KW - Freezing KW - Immersion KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754313420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+International+Polar+Year+Oslo+Science+Conference&rft.atitle=Understanding+the+Influence+of+Aerosol+Properties+on+Immersion+Freezing+in+Mixed-Phase+Stratiform+Clouds&rft.au=de+Boer%2C+G.%3BHashino%2C+T%3BTripoli%2C+G+J%3BEloranta%2C+E+W&rft.aulast=de+Boer&rft.aufirst=G.&rft.date=2010-06-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+International+Polar+Year+Oslo+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://ipy-osc.no/osc_programme LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Prediction of epigenetically regulated genes in breast cancer cell lines AN - 754555149; 13316995 AB - Methylation of CpG islands within the DNA promoter regions is one mechanism that leads to aberrant gene expression in cancer. In particular, the abnormal methylation of CpG islands may silence associated genes. Therefore, using high-throughput microarrays to measure CpG island methylation will lead to better understanding of tumor pathobiology and progression, while revealing potentially new biomarkers. We have examined a recently developed high-throughput technology for measuring genome-wide methylation patterns called mTACL. Here, we propose a computational pipeline for integrating gene expression and CpG island methylation profles to identify epigenetically regulated genes for a panel of 45 breast cancer cell lines, which is widely used in the Integrative Cancer Biology Program (ICBP). The pipeline (i) reduces the dimensionality of the methylation data, (ii) associates the reduced methylation data with gene expression data, and (iii) ranks methylation-expression associations according to their epigenetic regulation. Dimensionality reduction is performed in two steps: (i) methylation sites are grouped across the genome to identify regions of interest, and (ii) methylation profles are clustered within each region. Associations between the clustered methylation and the gene expression data sets generate candidate matches within a fxed neighborhood around each gene. Finally, the methylation-expression associations are ranked through a logistic regression, and their significance is quantified through permutation analysis. Our two-step dimensionality reduction compressed 90% of the original data, reducing 137,688 methylation sites to 14,505 clusters. Methylation-expression associations produced 18,312 correspondences, which were used to further analyze epigenetic regulation. Logistic regression was used to identify 58 genes from these correspondences that showed a statistically signifcant negative correlation between methylation profles and gene expression in the panel of breast cancer cell lines. Subnetwork enrichment of these genes has identifed 35 common regulators with 6 or more predicted markers. In addition to identifying epigenetically regulated genes, we show evidence of differentially expressed methylation patterns between the basal and luminal subtypes. Our results indicate that the proposed computational protocol is a viable platform for identifying epigenetically regulated genes. Our protocol has generated a list of predictors including COL1A2, TOP2A, TFF1, and VAV3, genes whose key roles in epigenetic regulation is documented in the literature. Subnetwork enrichment of these predicted markers further suggests that epigenetic regulation of individual genes occurs in a coordinated fashion and through common regulators. JF - BMC Bioinformatics AU - Loss, Leandro A AU - Sadanandam, Anguraj AU - Durinck, Steffen AU - Nautiyal, Shivani AU - Flaucher, Diane AU - Carlton, Victoria EH AU - Moorhead, Martin AU - Lu, Yontao AU - Gray, Joe W AU - Faham, Malek AU - Spellman, Paul AU - Parvin, Bahram AD - Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2010/06/04/ PY - 2010 DA - 2010 Jun 04 SP - 305 PB - BioMed Central Ltd., Middlesex House London W1T 4LB UK VL - 11 KW - Biochemistry Abstracts 2: Nucleic Acids; Biotechnology and Bioengineering Abstracts KW - Genomes KW - Data processing KW - Transcription KW - CpG islands KW - Tumors KW - Computer applications KW - biomarkers KW - DNA microarrays KW - Vav protein KW - Promoters KW - Tumor cell lines KW - epigenetics KW - Gene regulation KW - DNA methylation KW - Breast cancer KW - Bioinformatics KW - Gene silencing KW - N 14820:DNA Metabolism & Structure KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754555149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BMC+Bioinformatics&rft.atitle=Prediction+of+epigenetically+regulated+genes+in+breast+cancer+cell+lines&rft.au=Loss%2C+Leandro+A%3BSadanandam%2C+Anguraj%3BDurinck%2C+Steffen%3BNautiyal%2C+Shivani%3BFlaucher%2C+Diane%3BCarlton%2C+Victoria+EH%3BMoorhead%2C+Martin%3BLu%2C+Yontao%3BGray%2C+Joe+W%3BFaham%2C+Malek%3BSpellman%2C+Paul%3BParvin%2C+Bahram&rft.aulast=Loss&rft.aufirst=Leandro&rft.date=2010-06-04&rft.volume=11&rft.issue=&rft.spage=305&rft.isbn=&rft.btitle=&rft.title=BMC+Bioinformatics&rft.issn=1471-2105&rft_id=info:doi/10.1186%2F1471-2105-11-305 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Genomes; Data processing; Transcription; Tumors; CpG islands; Computer applications; DNA microarrays; biomarkers; Vav protein; Promoters; Tumor cell lines; epigenetics; Gene regulation; DNA methylation; Breast cancer; Bioinformatics; Gene silencing DO - http://dx.doi.org/10.1186/1471-2105-11-305 ER - TY - JOUR T1 - High-density 16S microarray and clone library-based microbial community composition of the Phoenix spacecraft assembly clean room AN - 853222208; 2011-022054 JF - Astrobiology AU - Vaishampayan, Parag AU - Osman, Shariff AU - Andersen, Gary AU - Venkateswaran, Kasthuri Y1 - 2010/06// PY - 2010 DA - June 2010 SP - 499 EP - 508 PB - Mary Ann Liebert, Larchmont, NY VL - 10 IS - 5 SN - 1531-1074, 1531-1074 KW - forward contamination KW - clean rooms KW - communities KW - bacteria KW - statistical analysis KW - DNA KW - astrobiology KW - Phoenix Mission KW - spacecrafts KW - exploration KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/853222208?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Astrobiology&rft.atitle=High-density+16S+microarray+and+clone+library-based+microbial+community+composition+of+the+Phoenix+spacecraft+assembly+clean+room&rft.au=Vaishampayan%2C+Parag%3BOsman%2C+Shariff%3BAndersen%2C+Gary%3BVenkateswaran%2C+Kasthuri&rft.aulast=Vaishampayan&rft.aufirst=Parag&rft.date=2010-06-01&rft.volume=10&rft.issue=5&rft.spage=499&rft.isbn=&rft.btitle=&rft.title=Astrobiology&rft.issn=15311074&rft_id=info:doi/10.1089%2Fast.2009.0443 L2 - http://www.liebertpub.com/publication.aspx?pub_id=99 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 42 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - astrobiology; bacteria; clean rooms; communities; DNA; exploration; forward contamination; Phoenix Mission; spacecrafts; statistical analysis DO - http://dx.doi.org/10.1089/ast.2009.0443 ER - TY - JOUR T1 - The effects of hydrate cement on the stiffness of some sands AN - 762673744; 2010-092480 AB - Cementing of sediment occurs naturally in many soils and weak rocks, during both the early and late stages of diagenesis. This paper reports the results of a series of resonant column tests carried out on a range of sand-sized geomaterials to explore the effects of different hydrate cement morphologies on the very small strain stiffness of the materials. It is shown that the proportion of void space filled by hydrate cement, cement location, sand size and grain shape all have a significant effect on shear modulus. The change in stiffness between different host materials is affected by the density, specific surface and grading of the geomaterial. JF - Geotechnique AU - Clayton, C R I AU - Priest, J A AU - Rees, E V L Y1 - 2010/06// PY - 2010 DA - June 2010 SP - 435 EP - 445 PB - Thomas Telford Services, London VL - 60 IS - 6 SN - 0016-8505, 0016-8505 KW - water KW - hydrates KW - soil mechanics KW - experimental studies KW - permafrost KW - gas hydrates KW - density KW - cementation KW - stiffness KW - shape analysis KW - properties KW - elastic constants KW - size KW - morphology KW - marine sediments KW - grains KW - silica KW - diagenesis KW - sediments KW - cement KW - shear modulus KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/762673744?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geotechnique&rft.atitle=The+effects+of+hydrate+cement+on+the+stiffness+of+some+sands&rft.au=Clayton%2C+C+R+I%3BPriest%2C+J+A%3BRees%2C+E+V+L&rft.aulast=Clayton&rft.aufirst=C+R&rft.date=2010-06-01&rft.volume=60&rft.issue=6&rft.spage=435&rft.isbn=&rft.btitle=&rft.title=Geotechnique&rft.issn=00168505&rft_id=info:doi/10.1680%2Fgeot.2010.60.6.435 L2 - http://www.thomastelford.com/journals/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 58 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GTNQA8 N1 - SubjectsTermNotLitGenreText - cement; cementation; density; diagenesis; elastic constants; experimental studies; gas hydrates; grains; hydrates; marine sediments; morphology; permafrost; properties; sediments; shape analysis; shear modulus; silica; size; soil mechanics; stiffness; water DO - http://dx.doi.org/10.1680/geot.2010.60.6.435 ER - TY - JOUR T1 - Single cell analysis: the new frontier in a~omics' AN - 760204303; 13200477 AB - Cellular heterogeneity that arises from stochastic expression of genes, proteins and metabolites is a fundamental principle of cell biology, but single cell analysis has been beyond the capability of a~omics' technology. This is rapidly changing with the recent examples of single cell genomics, transcriptomics, proteomics and metabolomics. The rate of change is expected to accelerate owing to emerging technologies that range from micro/nanofluidics to microfabricated interfaces for mass spectrometry to third- and fourth-generation automated DNA sequencers. As described in this review, single cell analysis is the new frontier in omics, and single cell omics has the potential to transform systems biology through new discoveries derived from cellular heterogeneity. JF - Trends in Biotechnology AU - Wang, Daojing AU - Bodovitz, Steven AD - Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA PY - 2010 SP - 281 EP - 290 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 28 IS - 6 SN - 0167-7799, 0167-7799 KW - Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - Reviews KW - Nucleotide sequence KW - Metabolites KW - proteomics KW - genomics KW - Stochasticity KW - Mass spectroscopy KW - metabolomics KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/760204303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Trends+in+Biotechnology&rft.atitle=Single+cell+analysis%3A+the+new+frontier+in+a%7Eomics%27&rft.au=Wang%2C+Daojing%3BBodovitz%2C+Steven&rft.aulast=Wang&rft.aufirst=Daojing&rft.date=2010-06-01&rft.volume=28&rft.issue=6&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Trends+in+Biotechnology&rft.issn=01677799&rft_id=info:doi/10.1016%2Fj.tibtech.2010.03.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2016-01-06 N1 - SubjectsTermNotLitGenreText - Nucleotide sequence; Reviews; Metabolites; genomics; proteomics; Stochasticity; metabolomics; Mass spectroscopy DO - http://dx.doi.org/10.1016/j.tibtech.2010.03.002 ER - TY - JOUR T1 - Structure of Rv1848 (UreA), the Mycobacterium tuberculosis urease g subunit AN - 754559391; 13361500 AB - The crystal structure of the urease g subunit (UreA) from Mycobacterium tuberculosis, Rv1848, has been determined at 1.8 A resolution. The asymmetric unit contains three copies of Rv1848 arranged into a homotrimer that is similar to the UreA trimer in the structure of urease from Klebsiella aerogenes. Small-angle X-ray scattering experiments indicate that the Rv1848 protein also forms trimers in solution. The observed homotrimer and the organization of urease genes within the M. tuberculosis genome suggest that M. tuberculosis urease has the (abg)3 composition observed for other bacterial ureases. The g subunit may be of primary importance for the formation of the urease quaternary structure. JF - Acta Crystallographica Section F AU - Habel, Jeff E AU - Bursey, Evan H AU - Rho, Beom-Seop AU - Kim, Chang-Yub AU - Segelke, Brent W AU - Rupp, Bernhard AU - Park, Min S AU - Terwilliger, Thomas C AU - Hung, Li-Wei AD - aPhysical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, lwhung@lanl.gov Y1 - 2010/06/01/ PY - 2010 DA - 2010 Jun 01 SP - 781 EP - 786 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 66 IS - 7 SN - 1744-3091, 1744-3091 KW - Microbiology Abstracts B: Bacteriology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts A: Industrial & Applied Microbiology KW - Mycobacterium tuberculosis KW - urease KW - structural genomics KW - Genomes KW - Protein structure KW - X-ray scattering KW - Crystal structure KW - Urease KW - Klebsiella aerogenes KW - Urea KW - Tuberculosis KW - Quaternary structure KW - J 02310:Genetics & Taxonomy KW - A 01340:Antibiotics & Antimicrobials KW - K 03330:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754559391?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Crystallographica+Section+F&rft.atitle=Structure+of+Rv1848+%28UreA%29%2C+the+Mycobacterium+tuberculosis+urease+g+subunit&rft.au=Habel%2C+Jeff+E%3BBursey%2C+Evan+H%3BRho%2C+Beom-Seop%3BKim%2C+Chang-Yub%3BSegelke%2C+Brent+W%3BRupp%2C+Bernhard%3BPark%2C+Min+S%3BTerwilliger%2C+Thomas+C%3BHung%2C+Li-Wei&rft.aulast=Habel&rft.aufirst=Jeff&rft.date=2010-06-01&rft.volume=66&rft.issue=7&rft.spage=781&rft.isbn=&rft.btitle=&rft.title=Acta+Crystallographica+Section+F&rft.issn=17443091&rft_id=info:doi/10.1107%2FS1744309110019536 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Protein structure; Genomes; Crystal structure; X-ray scattering; Urease; Tuberculosis; Urea; Quaternary structure; Klebsiella aerogenes; Mycobacterium tuberculosis DO - http://dx.doi.org/10.1107/S1744309110019536 ER - TY - JOUR T1 - Mechanisms of nickel sorption by a bacteriogenic birnessite AN - 753845169; 2010-074591 AB - A synergistic experimental-computational approach was used to study the molecular-scale mechanisms of Ni sorption at varying loadings and at pH 6-8 on the biogenic hexagonal birnessite produced by Pseudomonas putida GB-1. We found that Ni is scavenged effectively by bacterial biomass-birnessite assemblages. At surface excess values below 0.18 mol Ni kg (super -1) sorbent (0.13 mol Ni mol (super -1) Mn), the biomass component of the sorbent did not interfere with Ni sorption on mineral sites. Extended X-ray absorption fine structure (EXAFS) spectra showed two dominant coordination environments: Ni bound as a triple-corner-sharing (Ni-TCS) complex at vacancy sites and Ni incorporated (Ni-inc) into the MnO (sub 2) sheet, with the latter form of Ni favored at high sorptive concentrations and decreased proton activity. In parallel to our spectral analysis, first-principles geometry optimizations based on density functional theory (DFT) were performed to investigate the structure of Ni surface complexes at vacancy sites. Excellent agreement was achieved between EXAFS- and DFT-derived structural parameters for Ni-TCS and Ni-inc. Reaction-path calculations revealed a pH-dependent energy barrier associated with the transition from Ni-TCS to Ni-inc. Our results are consistent with the rate-limited incorporation of Ni at vacancy sites in our sorption samples, but near-equilibrium state of Ni in birnessite phases found in nodule samples. This study thus provides direct and quantitative evidence of the factors governing the occurrence of Ni adsorption versus Ni incorporation in biogenic hexagonal birnessite, a key mineral in the terrestrial manganese cycle. JF - Geochimica et Cosmochimica Acta AU - Pena, J AU - Kwon, Kideok D AU - Refson, Keith AU - Bargar, John R AU - Sposito, Garrison Y1 - 2010/06// PY - 2010 DA - June 2010 SP - 3076 EP - 3089 PB - Elsevier, New York, NY VL - 74 IS - 11 SN - 0016-7037, 0016-7037 KW - sorption KW - experimental studies KW - biochemistry KW - data processing KW - optimization KW - crystal structure KW - geometry KW - biogenic processes KW - chemical reactions KW - birnessite KW - metals KW - bacteria KW - nickel KW - EXAFS data KW - oxides KW - molecular dynamics KW - chemical composition KW - geochemistry KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753845169?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Mechanisms+of+nickel+sorption+by+a+bacteriogenic+birnessite&rft.au=Pena%2C+J%3BKwon%2C+Kideok+D%3BRefson%2C+Keith%3BBargar%2C+John+R%3BSposito%2C+Garrison&rft.aulast=Pena&rft.aufirst=J&rft.date=2010-06-01&rft.volume=74&rft.issue=11&rft.spage=3076&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2010.02.035 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 60 N1 - PubXState - NY N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biochemistry; biogenic processes; birnessite; chemical composition; chemical reactions; crystal structure; data processing; EXAFS data; experimental studies; geochemistry; geometry; metals; molecular dynamics; nickel; optimization; oxides; sorption DO - http://dx.doi.org/10.1016/j.gca.2010.02.035 ER - TY - JOUR T1 - Modeling diffusion of electrical appliances in the residential sector AN - 746228500; 12983540 AB - This paper presents a methodology for modeling residential appliance uptake as a function of root macroeconomic drivers. The analysis concentrates on four major energy end uses in the residential sector: refrigerators, washing machines, televisions and air conditioners. The model employs linear regression analysis to parameterize appliance ownership in terms of household income, urbanization and electrification rates according to a standard binary choice (logistic) function. The underlying household appliance ownership data are gathered from a variety of sources including energy consumption and more general standard of living surveys. These data span a wide range of countries, including many developing countries for which appliance ownership is currently low, but likely to grow significantly over the next decades as a result of economic development. The result is a 'global' parameterization of appliance ownership rates as a function of widely available macroeconomic variables for the four appliances studied, which provides a reliable basis for interpolation where data are not available, and forecasting of ownership rates on a global scale. The main value of this method is to form the foundation of bottom-up energy demand forecasts, project energy-related greenhouse gas emissions, and allow for the construction of detailed emissions mitigation scenarios. JF - Energy and Buildings AU - McNeil, Michael A AU - Letschert, Virginie E AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, CA 94720, United States, mamcneil@lbl.gov Y1 - 2010/06// PY - 2010 DA - Jun 2010 SP - 783 EP - 790 PB - Elsevier Science, P.O. Box 564 Lausanne 1 CH-1001 Switzerland VL - 42 IS - 6 SN - 0378-7788, 0378-7788 KW - Sustainability Science Abstracts; Pollution Abstracts; Environment Abstracts KW - energy demand KW - economic development KW - Urbanization KW - Air conditioning KW - Energy consumption KW - Buildings KW - mitigation KW - households KW - income KW - standard of living KW - Television KW - Residential areas KW - Emissions KW - Diffusion KW - Greenhouse gases KW - Developing countries KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746228500?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+and+Buildings&rft.atitle=Modeling+diffusion+of+electrical+appliances+in+the+residential+sector&rft.au=McNeil%2C+Michael+A%3BLetschert%2C+Virginie+E&rft.aulast=McNeil&rft.aufirst=Michael&rft.date=2010-06-01&rft.volume=42&rft.issue=6&rft.spage=783&rft.isbn=&rft.btitle=&rft.title=Energy+and+Buildings&rft.issn=03787788&rft_id=info:doi/10.1016%2Fj.enbuild.2009.11.015 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - energy demand; economic development; Urbanization; Air conditioning; Energy consumption; Buildings; households; mitigation; standard of living; income; Television; Emissions; Residential areas; Diffusion; Greenhouse gases; Developing countries DO - http://dx.doi.org/10.1016/j.enbuild.2009.11.015 ER - TY - JOUR T1 - A novel technique for the production of cool colored concrete tile and asphalt shingle roofing products AN - 746005719; 13035710 AB - The widespread use of solar-reflective roofing materials can save energy, mitigate urban heat islands and slow global warming by cooling the roughly 20% of the urban surface that is roofed. In this study we created prototype solar-reflective nonwhite concrete tile and asphalt shingle roofing materials using a two-layer spray coating process intended to maximize both solar reflectance and factory-line throughput. Each layer is a thin, quick-drying, pigmented latex paint based on either acrylic or a poly(vinylidene fluoride)/acrylic blend. The first layer is a titanium dioxide rutile white basecoat that increases the solar reflectance of a gray-cement concrete tile from 0.18 to 0.79, and that of a shingle surfaced with bare granules from 0.06 to 0.62. The second layer is a "cool" color topcoat with weak near-infrared (NIR) absorption and/or strong NIR backscattering. Each layer dries within seconds, potentially allowing a factory line to pass first under the white spray, then under the color spray. We combined a white basecoat with monocolor topcoats in various shades of red, brown, green and blue to prepare 24 cool colored prototype tiles and 24 cool colored prototypes shingles. The solar reflectances of the tiles ranged from 0.26 (dark brown; CIELAB lightness value L super(*)=29) to 0.57 (light green; L super(*)=76); those of the shingles ranged from 0.18 (dark brown; L super(*)=26) to 0.34 (light green; L super(*)=68). Over half of the tiles had a solar reflectance of at least 0.40, and over half of the shingles had a solar reflectance of at least 0.25. JF - Solar Energy Materials and Solar Cells AU - Levinson, Ronnen AU - Akbari, Hashem AU - Berdahl, Paul AU - Wood, Kurt AU - Skilton, Wayne AU - Petersheim, Jerry AD - Heat Island Group, Lawrence Berkeley National Laboratory, Berkeley, CA, USA, RML27@cornell.edu Y1 - 2010/06// PY - 2010 DA - Jun 2010 SP - 946 EP - 954 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 94 IS - 6 SN - 0927-0248, 0927-0248 KW - Sustainability Science Abstracts KW - titanium dioxide KW - prototypes KW - Climatic changes KW - Concrete KW - Factories KW - Fluoride KW - coating processes KW - solar cells KW - Absorption KW - Solar energy KW - asphalt KW - Sprays KW - Greenhouse effect KW - urban heat islands KW - Global warming KW - latex KW - Paints KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746005719?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Solar+Energy+Materials+and+Solar+Cells&rft.atitle=A+novel+technique+for+the+production+of+cool+colored+concrete+tile+and+asphalt+shingle+roofing+products&rft.au=Levinson%2C+Ronnen%3BAkbari%2C+Hashem%3BBerdahl%2C+Paul%3BWood%2C+Kurt%3BSkilton%2C+Wayne%3BPetersheim%2C+Jerry&rft.aulast=Levinson&rft.aufirst=Ronnen&rft.date=2010-06-01&rft.volume=94&rft.issue=6&rft.spage=946&rft.isbn=&rft.btitle=&rft.title=Solar+Energy+Materials+and+Solar+Cells&rft.issn=09270248&rft_id=info:doi/10.1016%2Fj.solmat.2009.12.012 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - asphalt; titanium dioxide; prototypes; Climatic changes; Sprays; Greenhouse effect; Concrete; Factories; urban heat islands; coating processes; Fluoride; solar cells; Absorption; latex; Global warming; Solar energy; Paints DO - http://dx.doi.org/10.1016/j.solmat.2009.12.012 ER - TY - JOUR T1 - Comparative Transcriptome and Secretome Analysis of Wood Decay Fungi Postia placenta and Phanerochaete chrysosporium AN - 745928612; 12925792 AB - Cellulose degradation by brown rot fungi, such as Postia placenta, is poorly understood relative to the phylogenetically related white rot basidiomycete, Phanerochaete chrysosporium. To elucidate the number, structure, and regulation of genes involved in lignocellulosic cell wall attack, secretome and transcriptome analyses were performed on both wood decay fungi cultured for 5 days in media containing ball-milled aspen or glucose as the sole carbon source. Using liquid chromatography-tandem mass spectrometry (LC-MS/MS), a total of 67 and 79 proteins were identified in the extracellular fluids of P. placenta and P. chrysosporium cultures, respectively. Viewed together with transcript profiles, P. chrysosporium employs an array of extracellular glycosyl hydrolases to simultaneously attack cellulose and hemicelluloses. In contrast, under these same conditions, P. placenta secretes an array of hemicellulases but few potential cellulases. The two species display distinct expression patterns for oxidoreductase-encoding genes. In P. placenta, these patterns are consistent with an extracellular Fenton system and include the upregulation of genes involved in iron acquisition, in the synthesis of low-molecular-weight quinones, and possibly in redox cycling reactions. JF - Applied and Environmental Microbiology AU - Wymelenberg, Amber Vanden AU - Gaskell, Jill AU - Mozuch, Michael AU - Sabat, Grzegorz AU - Ralph, John AU - Skyba, Oleksandr AU - Mansfield, Shawn D AU - Blanchette, Robert A AU - Martinez, Diego AU - Grigoriev, Igor AD - Department of Energy, Joint Genome Institute, Walnut Creek, California 94598, dcullen@facstaff.wisc.edu Y1 - 2010/06// PY - 2010 DA - Jun 2010 SP - 3599 EP - 3610 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 76 IS - 11 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology KW - Brown rot KW - Basidiomycetes KW - Placenta KW - A 01390:Forestry KW - K 03420:Plant Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745928612?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Comparative+Transcriptome+and+Secretome+Analysis+of+Wood+Decay+Fungi+Postia+placenta+and+Phanerochaete+chrysosporium&rft.au=Wymelenberg%2C+Amber+Vanden%3BGaskell%2C+Jill%3BMozuch%2C+Michael%3BSabat%2C+Grzegorz%3BRalph%2C+John%3BSkyba%2C+Oleksandr%3BMansfield%2C+Shawn+D%3BBlanchette%2C+Robert+A%3BMartinez%2C+Diego%3BGrigoriev%2C+Igor&rft.aulast=Wymelenberg&rft.aufirst=Amber&rft.date=2010-06-01&rft.volume=76&rft.issue=11&rft.spage=3599&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/10.1128%2FAEM.00058-10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Number of references - 1 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Placenta; Basidiomycetes DO - http://dx.doi.org/10.1128/AEM.00058-10 ER - TY - JOUR T1 - Strategies for Enhancing the Effectiveness of Metagenomic-based Enzyme Discovery in Lignocellulolytic Microbial Communities AN - 745704496; 12852142 AB - Producing cellulosic biofuels from plant material has recently emerged as a key US Department of Energy goal. For this technology to be commercially viable on a large scale, it is critical to make production cost efficient by streamlining both the deconstruction of lignocellulosic biomass and fuel production. Many natural ecosystems efficiently degrade lignocellulosic biomass and harbor enzymes that, when identified, could be used to increase the efficiency of commercial biomass deconstruction. However, ecosystems most likely to yield relevant enzymes, such as tropical rain forest soil in Puerto Rico, are often too complex for enzyme discovery using current metagenomic sequencing technologies. One potential strategy to overcome this problem is to selectively cultivate the microbial communities from these complex ecosystems on biomass under defined conditions, generating less complex biomass-degrading microbial populations. To test this premise, we cultivated microbes from Puerto Rican soil or green waste compost under precisely defined conditions in the presence dried ground switchgrass (Panicum virgatum L.) or lignin, respectively, as the sole carbon source. Phylogenetic profiling of the two feedstock-adapted communities using SSU rRNA gene amplicon pyrosequencing or phylogenetic microarray analysis revealed that the adapted communities were significantly simplified compared to the natural communities from which they were derived. Several members of the lignin-adapted and switchgrass-adapted consortia are related to organisms previously characterized as biomass degraders, while others were from less well-characterized phyla. The decrease in complexity of these communities make them good candidates for metagenomic sequencing and will likely enable the reconstruction of a greater number of full-length genes, leading to the discovery of novel lignocellulose-degrading enzymes adapted to feedstocks and conditions of interest. JF - BioEnergy Research AU - DeAngelis, Kristen M AU - Gladden, John M AU - Allgaier, Martin AU - D'haeseleer, Patrik AU - Fortney, Julian L AU - Reddy, Amitha AU - Hugenholtz, Philip AU - Singer, Steven W AU - Gheynst, Jean S AU - Silver, Whendee L AU - Simmons, Blake A AU - Hazen, Terry C AD - Microbial Communities Group, Deconstruction Division, Joint BioEnergy Institute, Emeryville, CA, USA, TCHazen@lbl.gov TCHazen@lbl.gov TCHazen@lbl.gov Y1 - 2010/06// PY - 2010 DA - Jun 2010 SP - 146 EP - 158 PB - Springer New York, LLC, 233 Spring St New York NY 10013-1578 USA VL - 3 IS - 2 SN - 1939-1234, 1939-1234 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Environment Abstracts KW - Fuel technology KW - Ecosystems KW - Fuels KW - Forests KW - Carbon sources KW - Soil KW - rRNA KW - Rain forests KW - Phylogeny KW - Panicum virgatum KW - Composts KW - Wastes KW - Enzymes KW - Microbial activity KW - Biomass KW - ASW, Caribbean Sea, Greater Antilles, Puerto Rico KW - Energy KW - Tropical environments KW - Lignin KW - Biofuels KW - Technology KW - ENA 03:Energy KW - P 1000:MARINE POLLUTION KW - A 01390:Forestry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745704496?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BioEnergy+Research&rft.atitle=Strategies+for+Enhancing+the+Effectiveness+of+Metagenomic-based+Enzyme+Discovery+in+Lignocellulolytic+Microbial+Communities&rft.au=DeAngelis%2C+Kristen+M%3BGladden%2C+John+M%3BAllgaier%2C+Martin%3BD%27haeseleer%2C+Patrik%3BFortney%2C+Julian+L%3BReddy%2C+Amitha%3BHugenholtz%2C+Philip%3BSinger%2C+Steven+W%3BGheynst%2C+Jean+S%3BSilver%2C+Whendee+L%3BSimmons%2C+Blake+A%3BHazen%2C+Terry+C&rft.aulast=DeAngelis&rft.aufirst=Kristen&rft.date=2010-06-01&rft.volume=3&rft.issue=2&rft.spage=146&rft.isbn=&rft.btitle=&rft.title=BioEnergy+Research&rft.issn=19391234&rft_id=info:doi/10.1007%2Fs12155-010-9089-z LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Phylogeny; Composts; Fuels; Wastes; Enzymes; Carbon sources; Biomass; Soil; rRNA; Rain forests; Energy; Lignin; Biofuels; Fuel technology; Ecosystems; Tropical environments; Forests; Microbial activity; Technology; Panicum virgatum; ASW, Caribbean Sea, Greater Antilles, Puerto Rico DO - http://dx.doi.org/10.1007/s12155-010-9089-z ER - TY - JOUR T1 - Recovery of Sugars from Ionic Liquid Biomass Liquor by Solvent Extraction AN - 745693076; 12852134 AB - The dissolution of biomass into ionic liquids (ILs) has been shown to be a promising alternative biomass pretreatment technology, facilitating faster breakdown of cellulose through the disruption of lignin and the decrystallization of cellulose. Both biological and chemical catalysis have been employed to enhance the conversion of IL-treated biomass polysaccharides into monomeric sugars. However, biomass-dissolving ILs, sugar monomers, and smaller carbohydrate oligomers are all soluble in water. This reduces the overall sugar content in the recovered solid biomass and complicates the recovery and recycle of the IL. Near-complete recovery of the IL and the holocellulose is essential for an IL-based pretreatment technology to be economically feasible. To address this, a solvent extraction technique, based on the chemical affinity of boronates such as phenylboronic acid and naphthalene-2-boronic acid for sugars, was applied to the extraction of glucose, xylose, and cellobiose from aqueous mixtures of 1-ethyl-3-methylimidazolium acetate. It was shown that boronate complexes could extract up to 90% of mono- and disaccharides from aqueous IL solutions, 100% IL systems, and hydrolysates of corn stover containing IL. The use of boronate complexes shows significant potential as a way to recover sugars at several stages in ionic liquid biomass pretreatment processes, delivering a concentrated solution of fermentable sugars, minimizing toxic byproducts, and facilitating ionic liquid cleanup and recycle. JF - BioEnergy Research AU - Brennan, Timothy CR AU - Datta, Supratim AU - Blanch, Harvey W AU - Simmons, Blake A AU - Holmes, Bradley M AD - Deconstruction Division, Joint BioEnergy Institute, Emeryville, CA, USA, bmholme@sandia.gov Y1 - 2010/06// PY - 2010 DA - Jun 2010 SP - 123 EP - 133 PB - Springer New York, LLC, 233 Spring St New York NY 10013-1578 USA VL - 3 IS - 2 SN - 1939-1234, 1939-1234 KW - Biotechnology and Bioengineering Abstracts; Environment Abstracts KW - Solvent extraction KW - Xylose KW - cellobiose KW - Byproducts KW - Cellulose KW - Glucose KW - Polysaccharides KW - corn KW - Carbohydrates KW - Hydrolysates KW - Sugar KW - biofuels KW - Solvents KW - Biomass KW - Acetic acid KW - Disaccharides KW - Monomers KW - Lignin KW - Dissolution KW - Technology KW - Catalysis KW - ENA 03:Energy KW - W 30945:Fermentation & Cell Culture UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745693076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BioEnergy+Research&rft.atitle=Recovery+of+Sugars+from+Ionic+Liquid+Biomass+Liquor+by+Solvent+Extraction&rft.au=Brennan%2C+Timothy+CR%3BDatta%2C+Supratim%3BBlanch%2C+Harvey+W%3BSimmons%2C+Blake+A%3BHolmes%2C+Bradley+M&rft.aulast=Brennan&rft.aufirst=Timothy&rft.date=2010-06-01&rft.volume=3&rft.issue=2&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=BioEnergy+Research&rft.issn=19391234&rft_id=info:doi/10.1007%2Fs12155-010-9091-5 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Sugar; Xylose; cellobiose; Cellulose; Solvents; Glucose; Biomass; Polysaccharides; Acetic acid; Disaccharides; Monomers; Lignin; Dissolution; Carbohydrates; Hydrolysates; Catalysis; Solvent extraction; Byproducts; biofuels; corn; Technology DO - http://dx.doi.org/10.1007/s12155-010-9091-5 ER - TY - JOUR T1 - Surface structural disordering in graphite upon lithium intercalation/deintercalation AN - 1777137597; 15122135 AB - We report on the origin of the surface structural disordering in graphite anodes induced by lithium intercalation and deintercalation processes. Average Raman spectra of graphitic anodes reveal that cycling at potentials that correspond to low lithium concentrations in Li sub(xC (0 = x 0.16) is responsible for most of the structural damage observed at the graphite surface. The extent of surface structural disorder in graphite is significantly reduced for the anodes that were cycled at potentials where stage-1 and stage-2 compounds (x 0.33) are present. Electrochemical impedance spectra show larger interfacial impedance for the electrodes that were fully delithiated during cycling as compared to electrodes that were cycled at lower potentials (U 0.15 V vs. Li/Li[super]+). Steep Li[super]+ surface-bulk concentration gradients at the surface of graphite during early stages of intercalation processes, and the inherent increase of the Li) sub(x)C d-spacing tend to induce local stresses at the edges of graphene layers, and lead to the breakage of C-C bonds. The exposed graphite edge sites react with the electrolyte to (re)form the SEI layer, which leads to gradual degradation of the graphite anode, and causes reversible capacity loss in a lithium-ion battery. JF - Journal of Power Sources AU - Sethuraman, Vijay A AU - Hardwick, Laurence J AU - Srinivasan, Venkat AU - Kostecki, Robert AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8168, USA Y1 - 2010/06/01/ PY - 2010 DA - 2010 Jun 01 SP - 3655 EP - 3660 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 11 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE) KW - Lithium-ion battery KW - Graphite anode KW - Structural disordering KW - Capacity fade KW - Raman spectroscopy KW - Structural damage KW - Cycles KW - Graphite KW - Graphene KW - Electrodes KW - Anodes KW - Intercalation KW - Lithium UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777137597?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Surface+structural+disordering+in+graphite+upon+lithium+intercalation%2Fdeintercalation&rft.au=Sethuraman%2C+Vijay+A%3BHardwick%2C+Laurence+J%3BSrinivasan%2C+Venkat%3BKostecki%2C+Robert&rft.aulast=Sethuraman&rft.aufirst=Vijay&rft.date=2010-06-01&rft.volume=195&rft.issue=11&rft.spage=3655&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2009.12.034 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jpowsour.2009.12.034 ER - TY - JOUR T1 - Calcifying cyanobacteria - the potential of biomineralization for carbon capture and storage AN - 1777116059; 13258452 AB - Employment of cyanobacteria in biomineralization of carbon dioxide by calcium carbonate precipitation offers novel and self-sustaining strategies for point-source carbon capture and sequestration. Although details of this process remain to be elucidated, a carbon-concentrating mechanism, and chemical reactions in exopolysaccharide or proteinaceous surface layers are assumed to be of crucial importance. Cyanobacteria can utilize solar energy through photosynthesis to convert carbon dioxide to recalcitrant calcium carbonate. Calcium can be derived from sources such as gypsum or industrial brine. A better understanding of the biochemical and genetic mechanisms that carry out and regulate cynaobacterial biomineralization should put us in a position where we can further optimize these steps by exploiting the powerful techniques of genetic engineering, directed evolution, and biomimetics. JF - Current Opinion in Biotechnology AU - Jansson, Christer AU - Northen, Trent AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2010/06// PY - 2010 DA - June 2010 SP - 365 EP - 371 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 21 IS - 3 SN - 0958-1669, 0958-1669 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN) KW - Genetics KW - Calcium carbonate KW - Cyanobacteria KW - Carbon KW - Photosynthesis KW - Biomimetics KW - Carbon dioxide KW - Biomineralization UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777116059?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Opinion+in+Biotechnology&rft.atitle=Calcifying+cyanobacteria+-+the+potential+of+biomineralization+for+carbon+capture+and+storage&rft.au=Jansson%2C+Christer%3BNorthen%2C+Trent&rft.aulast=Jansson&rft.aufirst=Christer&rft.date=2010-06-01&rft.volume=21&rft.issue=3&rft.spage=365&rft.isbn=&rft.btitle=&rft.title=Current+Opinion+in+Biotechnology&rft.issn=09581669&rft_id=info:doi/10.1016%2Fj.copbio.2010.03.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2016-08-08 DO - http://dx.doi.org/10.1016/j.copbio.2010.03.017 ER - TY - JOUR T1 - X-ray spectromicroscopy of mineral intergrowths in the Santa Catharina Meteorite AN - 1400617154; 2013-052779 AB - This work describes the application of microfocus X-ray absorption spectroscopy (XAS) and X-ray photo-emission electron microscopy (XPEEM) to the study of the complex mineralogical intergrowths within the Santa Catharina meteorite. The Santa Catharina meteorite of this study (BM52283 from the meteorite collection of the Natural History Museum, London, UK) primarily comprises a taenite bulk host phase (Fe:Ni ratio = 70.9+ or -0.8%:29.1+ or -0.8%) with a set of oxide-bearing cloudy zone textured regions (Fe:Ni:O ratio = 40.4+ or -0.3%:49.0+ or -0.7%:10.6+ or -0.8% at the core and Fe:Ni:O ratio = 34.4+ or -1.5%:42.7+ or -0.6%:22.9+ or -1.8% towards the rims) and numerous schreibersite (Fe:Ni:P ratio = 38.6+ or -1.6%:38.4+ or -0.9%:23.0+ or -0.5%) inclusions. Between the schreibersite and the taenite are rims up to 50 mu m across of Ni-rich kamacite (Fe:Ni ratio = 93.4+ or -0.4%:6.6+ or -0.5%). No chemical zoning or spatial variations in the Fe and Ni speciation was observed within either the schreibersite or the kamacite phases. The oxide-bearing cloudy zone textured regions mostly comprise metallic Fe-Ni alloy, predominantly tetrataenite. Within the oxide phases, the Fe is predominantly, but not entirely, tetrahedrally co-ordinated Fe (super 3+) and the Ni is octahedrally co-ordinated Ni (super 2+) . Structural analysis supports the suggestion that non-stoichiometric Fe (sub 2) NiO (sub 4) trevorite is the oxide phase. The trevorite:tetrataenite ratio increases at the edges of the oxide-bearing cloudy zone textured regions indicating increased oxidation at the edges of these zones. The spatial resolution of the XPEEM achieved was between 110 and 150 nm, which precluded the study of either the previously reported approximately 10 nm precipitates of tetrataenite within the bulk taenite or any antitaenite. Abstract Copyright (2010), International Association of Geoanalysts. JF - Geostandards and Geoanalytical Research AU - Schofield, Paul F AU - Smith, Andrew D AU - Mosselmans, J Frederick W AU - Ohldag, Hendrik AU - Scholl, Andreas AU - Raoux, Simone AU - Cressey, Gordon AU - Cressey, Barbara A AU - Quinn, Paul D AU - Kirk, Caroline A AU - Hogg, Simon C Y1 - 2010/06// PY - 2010 DA - June 2010 SP - 145 EP - 159 PB - Wiley-Blackwell on behalf of the International Association of Geoanalysts, Vandoeuvre-les-Nancy VL - 34 IS - 2 SN - 1639-4488, 1639-4488 KW - trevorite KW - techniques KW - Santa Catharina Meteorite KW - kamacite KW - analysis KW - phosphides KW - intergrowths KW - X-ray spectra KW - emission spectroscopy KW - emission spectra KW - meteorites KW - X-rays KW - schreibersite KW - taenite KW - X-ray spectroscopy KW - X-ray analysis KW - oxides KW - alloys KW - spectra KW - spectroscopy KW - electron microscopy KW - instruments KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1400617154?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geostandards+and+Geoanalytical+Research&rft.atitle=X-ray+spectromicroscopy+of+mineral+intergrowths+in+the+Santa+Catharina+Meteorite&rft.au=Schofield%2C+Paul+F%3BSmith%2C+Andrew+D%3BMosselmans%2C+J+Frederick+W%3BOhldag%2C+Hendrik%3BScholl%2C+Andreas%3BRaoux%2C+Simone%3BCressey%2C+Gordon%3BCressey%2C+Barbara+A%3BQuinn%2C+Paul+D%3BKirk%2C+Caroline+A%3BHogg%2C+Simon+C&rft.aulast=Schofield&rft.aufirst=Paul&rft.date=2010-06-01&rft.volume=34&rft.issue=2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Geostandards+and+Geoanalytical+Research&rft.issn=16394488&rft_id=info:doi/10.1111%2Fj.1751-908X.2010.00038.x L2 - http://www.wiley.com/bw/journal.asp?ref=1639-4488&site=1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2013-01-01 N1 - Number of references - 54 N1 - Document feature - 1 table N1 - Last updated - 2013-07-18 N1 - SubjectsTermNotLitGenreText - alloys; analysis; electron microscopy; emission spectra; emission spectroscopy; instruments; intergrowths; kamacite; meteorites; oxides; phosphides; Santa Catharina Meteorite; schreibersite; spectra; spectroscopy; taenite; techniques; trevorite; X-ray analysis; X-ray spectra; X-ray spectroscopy; X-rays DO - http://dx.doi.org/10.1111/j.1751-908X.2010.00038.x ER - TY - CPAPER T1 - Coupling Visualization and Data Analysis for Knowledge Discovery from Multi-dimensional Scientific Data T2 - Tenth International Conference on Computational Science (ICCS 2010) AN - 754252969; 5834228 JF - Tenth International Conference on Computational Science (ICCS 2010) AU - Ruebel, O AU - Ahern, S AU - Bethel, E AU - Biggin, M AU - Childs, H AU - Cormier-Michel, E AU - DePace, A AU - Eisen, M AU - Fowlkes, C AU - Geddes, C AU - Hagen, H AU - Hamann, B AU - Huang, M.-Y. AU - Luengo Hendriks, C. AU - Keraenen, S AU - Knowles, D AU - Malik, J AU - Meredith, J AU - Messmer, P AU - Prabhat, M AU - Ushizima, D AU - Weber, G AU - Wu, K. Y1 - 2010/05/31/ PY - 2010 DA - 2010 May 31 KW - Data processing KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754252969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Tenth+International+Conference+on+Computational+Science+%28ICCS+2010%29&rft.atitle=Coupling+Visualization+and+Data+Analysis+for+Knowledge+Discovery+from+Multi-dimensional+Scientific+Data&rft.au=Ruebel%2C+O%3BAhern%2C+S%3BBethel%2C+E%3BBiggin%2C+M%3BChilds%2C+H%3BCormier-Michel%2C+E%3BDePace%2C+A%3BEisen%2C+M%3BFowlkes%2C+C%3BGeddes%2C+C%3BHagen%2C+H%3BHamann%2C+B%3BHuang%2C+M.-Y.%3BLuengo+Hendriks%2C+C.%3BKeraenen%2C+S%3BKnowles%2C+D%3BMalik%2C+J%3BMeredith%2C+J%3BMessmer%2C+P%3BPrabhat%2C+M%3BUshizima%2C+D%3BWeber%2C+G%3BWu%2C+K.&rft.aulast=Ruebel&rft.aufirst=O&rft.date=2010-05-31&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Tenth+International+Conference+on+Computational+Science+%28ICCS+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.iccs-meeting.org/iccs2010/papers/schedule.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - New Generation of Polymer Monoliths with Tailored Porous Properties and Chemistry T2 - 34th International Symposium on Capillary Chromatography and 7th GCxGC Symposium (RIVA 2010) AN - 754281812; 5848259 JF - 34th International Symposium on Capillary Chromatography and 7th GCxGC Symposium (RIVA 2010) AU - Svec, Frantisek Y1 - 2010/05/30/ PY - 2010 DA - 2010 May 30 KW - Polymers KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754281812?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=34th+International+Symposium+on+Capillary+Chromatography+and+7th+GCxGC+Symposium+%28RIVA+2010%29&rft.atitle=New+Generation+of+Polymer+Monoliths+with+Tailored+Porous+Properties+and+Chemistry&rft.au=Svec%2C+Frantisek&rft.aulast=Svec&rft.aufirst=Frantisek&rft.date=2010-05-30&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=34th+International+Symposium+on+Capillary+Chromatography+and+7th+GCxGC+Symposium+%28RIVA+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ric.eu/riva/index.php?option=com_content&view=article&id=14 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Porous Polymer Monoliths with Reduced Adsorption of Proteins: An Ideal Matrix for Different Applications T2 - 34th International Symposium on Capillary Chromatography and 7th GCxGC Symposium (RIVA 2010) AN - 754278591; 5848267 JF - 34th International Symposium on Capillary Chromatography and 7th GCxGC Symposium (RIVA 2010) AU - Krenkova, Jana AU - Gargano, Andrea AU - Lacher, Nathan AU - Svec, Frantisek Y1 - 2010/05/30/ PY - 2010 DA - 2010 May 30 KW - Adsorption KW - Polymers KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754278591?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=34th+International+Symposium+on+Capillary+Chromatography+and+7th+GCxGC+Symposium+%28RIVA+2010%29&rft.atitle=Porous+Polymer+Monoliths+with+Reduced+Adsorption+of+Proteins%3A+An+Ideal+Matrix+for+Different+Applications&rft.au=Krenkova%2C+Jana%3BGargano%2C+Andrea%3BLacher%2C+Nathan%3BSvec%2C+Frantisek&rft.aulast=Krenkova&rft.aufirst=Jana&rft.date=2010-05-30&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=34th+International+Symposium+on+Capillary+Chromatography+and+7th+GCxGC+Symposium+%28RIVA+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ric.eu/riva/index.php?option=com_content&view=article&id=14 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - CheA-3 is Essential for Chemotaxis Towards Electron Acceptors in Desulfovibrio vulgaris Hildenborough T2 - 110th General Meeting of the American Society for Microbiology AN - 839641058; 5895835 JF - 110th General Meeting of the American Society for Microbiology AU - Ray, J AU - Keller, K AU - Wall, J AU - Keasling, J AU - Mukhopadhyay, A Y1 - 2010/05/23/ PY - 2010 DA - 2010 May 23 KW - {Q1} KW - CheA protein KW - Chemotaxis KW - {Q2} KW - Desulfovibrio vulgaris KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839641058?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=110th+General+Meeting+of+the+American+Society+for+Microbiology&rft.atitle=CheA-3+is+Essential+for+Chemotaxis+Towards+Electron+Acceptors+in+Desulfovibrio+vulgaris+Hildenborough&rft.au=Ray%2C+J%3BKeller%2C+K%3BWall%2C+J%3BKeasling%2C+J%3BMukhopadhyay%2C+A&rft.aulast=Ray&rft.aufirst=J&rft.date=2010-05-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=110th+General+Meeting+of+the+American+Society+for+Microbiology&rft.issn=&rft_id=info:doi/ L2 - http://gm.asm.org/images/stories/final_gm_final_program-v2.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Development of Extraction Techniques for the Detection of Signature Lipids from Oil T2 - 110th General Meeting of the American Society for Microbiology AN - 839639656; 5895755 JF - 110th General Meeting of the American Society for Microbiology AU - Borglin, S AU - Geller, J AU - Chakraborty, R AU - Hazen, T AU - Mason, O Y1 - 2010/05/23/ PY - 2010 DA - 2010 May 23 KW - {Q1} KW - Oil KW - Lipids KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839639656?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=110th+General+Meeting+of+the+American+Society+for+Microbiology&rft.atitle=Development+of+Extraction+Techniques+for+the+Detection+of+Signature+Lipids+from+Oil&rft.au=Borglin%2C+S%3BGeller%2C+J%3BChakraborty%2C+R%3BHazen%2C+T%3BMason%2C+O&rft.aulast=Borglin&rft.aufirst=S&rft.date=2010-05-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=110th+General+Meeting+of+the+American+Society+for+Microbiology&rft.issn=&rft_id=info:doi/ L2 - http://gm.asm.org/images/stories/final_gm_final_program-v2.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-01-11 N1 - Last updated - 2011-01-14 ER - TY - CPAPER T1 - Design and Fabrication of the High Magnetic Field Solenoid Pulsers for the Ndcx-Ii Induction Accelerator T2 - 2010 IEEE International Power Modulator and High Voltage Conference (IPMHVC 2010) AN - 754227657; 5787712 JF - 2010 IEEE International Power Modulator and High Voltage Conference (IPMHVC 2010) AU - Waldron, William Y1 - 2010/05/23/ PY - 2010 DA - 2010 May 23 KW - Magnetic fields KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754227657?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+IEEE+International+Power+Modulator+and+High+Voltage+Conference+%28IPMHVC+2010%29&rft.atitle=Design+and+Fabrication+of+the+High+Magnetic+Field+Solenoid+Pulsers+for+the+Ndcx-Ii+Induction+Accelerator&rft.au=Waldron%2C+William&rft.aulast=Waldron&rft.aufirst=William&rft.date=2010-05-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+IEEE+International+Power+Modulator+and+High+Voltage+Conference+%28IPMHVC+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.eng.auburn.edu/pmhvc2010/images/2010_IPMHVC_Tech_Prog.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Assembly of genes and genomes from bio-mass degrading cow rumen T2 - 14th HUGO International Human Genome Meeting (HGM 2010) AN - 754233270; 5794199 JF - 14th HUGO International Human Genome Meeting (HGM 2010) AU - Rubin, Edward Y1 - 2010/05/18/ PY - 2010 DA - 2010 May 18 KW - Genomes KW - Rumen KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754233270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=14th+HUGO+International+Human+Genome+Meeting+%28HGM+2010%29&rft.atitle=Assembly+of+genes+and+genomes+from+bio-mass+degrading+cow+rumen&rft.au=Rubin%2C+Edward&rft.aulast=Rubin&rft.aufirst=Edward&rft.date=2010-05-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=14th+HUGO+International+Human+Genome+Meeting+%28HGM+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.hgm2010.org/programme.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Black carbon aerosols and the third polar ice cap AN - 746158053; 13061740 AB - Recent thinning of glaciers over the Himalayas (sometimes referred to as the third polar region) have raised concern on future water supplies since these glaciers supply water to large river systems that support millions of people inhabiting the surrounding areas. Black carbon (BC) aerosols, released from incomplete combustion, have been increasingly implicated as causing large changes in the hydrology and radiative forcing over Asia and its deposition on snow is thought to increase snow melt. In India BC emissions from biofuel combustion is highly prevalent and compared to other regions, BC aerosol amounts are high. Here, we quantify the impact of BC aerosols on snow cover and precipitation from 1990 to 2010 over the Indian subcontinental region using two different BC emission inventories. New estimates indicate that Indian BC emissions from coal and biofuel are large and transport is expected to expand rapidly in coming years. We show that over the Himalayas, from 1990 to 2000, simulated snow/ice cover decreases by ~0.9% due to aerosols. The contribution of the enhanced Indian BC to this decline is ~36%, similar to that simulated for 2000 to 2010. Spatial patterns of modeled changes in snow cover and precipitation are similar to observations (from 1990 to 2000), and are mainly obtained with the newer BC estimates. JF - Atmospheric Chemistry and Physics AU - Menon, S AU - Koch, D AU - Beig, G AU - Sahu, S AU - Fasullo, J AU - Orlikowski, D AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2010/05/18/ PY - 2010 DA - 2010 May 18 SP - 4559 EP - 4571 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 10 IS - 10 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Fuel technology KW - Rainfall KW - Snow Cover KW - India KW - River systems KW - Hydrologic Models KW - Radiative forcing KW - black carbon KW - INW, Asia KW - Hydrology KW - Aerosols KW - Ecosystem disturbance KW - Combustion KW - Polar Regions KW - Pollutant deposition KW - Atmospheric chemistry KW - Ice cover KW - Glaciers KW - Pakistan, Himalayas KW - Black carbon aerosols KW - Coal KW - Carbon KW - Ice Cover KW - Snow KW - biofuels KW - glaciers KW - Water supply from glaciers KW - Precipitation KW - Snow cover KW - Water supply KW - Deposition KW - AQ 00001:Water Resources and Supplies KW - M2 551.324:Land Ice/Glaciers (551.324) KW - SW 5010:Network design KW - P 0000:AIR POLLUTION KW - Q2 09171:Dynamics of lakes and rivers UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746158053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Black+carbon+aerosols+and+the+third+polar+ice+cap&rft.au=Menon%2C+S%3BKoch%2C+D%3BBeig%2C+G%3BSahu%2C+S%3BFasullo%2C+J%3BOrlikowski%2C+D&rft.aulast=Menon&rft.aufirst=S&rft.date=2010-05-18&rft.volume=10&rft.issue=10&rft.spage=4559&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2016-04-29 N1 - SubjectsTermNotLitGenreText - Aerosols; Carbon; Snow; Atmospheric chemistry; Glaciers; Coal; Ice cover; Ecosystem disturbance; Water supply; River systems; Radiative forcing; Hydrology; Water supply from glaciers; Black carbon aerosols; Precipitation; Snow cover; Polar Regions; Fuel technology; Pollutant deposition; black carbon; Rainfall; biofuels; glaciers; Combustion; Hydrologic Models; Ice Cover; Deposition; Snow Cover; INW, Asia; Pakistan, Himalayas; India ER - TY - CPAPER T1 - The Economic Value of PV and Net Metering to Residential Customers in California T2 - 2010 ASES National Solar Conference (SOLAR 2010) AN - 754276827; 5816515 JF - 2010 ASES National Solar Conference (SOLAR 2010) AU - Darghouth, N AU - Barbose, G AU - Wiser, R Y1 - 2010/05/17/ PY - 2010 DA - 2010 May 17 KW - USA, California KW - Economics KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754276827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+ASES+National+Solar+Conference+%28SOLAR+2010%29&rft.atitle=The+Economic+Value+of+PV+and+Net+Metering+to+Residential+Customers+in+California&rft.au=Darghouth%2C+N%3BBarbose%2C+G%3BWiser%2C+R&rft.aulast=Darghouth&rft.aufirst=N&rft.date=2010-05-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+ASES+National+Solar+Conference+%28SOLAR+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.solar2010.org/program/saag.htm LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Outside the Closed World: On Using Machine Learning For Network Intrusion Detection T2 - 31st IEEE Symposium on Security and Privacy AN - 754267024; 5816837 JF - 31st IEEE Symposium on Security and Privacy AU - Sommer, Robin AU - Paxson, Vern Y1 - 2010/05/16/ PY - 2010 DA - 2010 May 16 KW - Learning algorithms KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754267024?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=31st+IEEE+Symposium+on+Security+and+Privacy&rft.atitle=Outside+the+Closed+World%3A+On+Using+Machine+Learning+For+Network+Intrusion+Detection&rft.au=Sommer%2C+Robin%3BPaxson%2C+Vern&rft.aulast=Sommer&rft.aufirst=Robin&rft.date=2010-05-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=31st+IEEE+Symposium+on+Security+and+Privacy&rft.issn=&rft_id=info:doi/ L2 - http://oakland31.cs.virginia.edu/program.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Cu-YSZ cermet solid oxide fuel cell anode prepared by high-temperature sintering AN - 746271421; 12523313 AB - Porous YSZ-Cu alloy cermet structures are prepared by sintering above the metal melting point in reducing atmosphere. Unexpectedly good wetting of the molten metal within the YSZ network is obtained, resulting in cermets with fine structure and excellent electronic conductivity. Anode-supported solid oxide fuel cells are prepared with YSZ-Cu alloy cermet as the anode. Addition of infiltrated ceria catalyst improved the initial performance. Maximum power density of about 275 mA cm super(-2) and operation for about 110 h was achieved in the 700-800 degree C range. After operation, AC impedance revealed that the high-frequency impedance was unchanged, whereas the low-frequency impedance increased. It was concluded that the Cu alloy network conductivity remains high, but catalyst stability needs improvement. JF - Journal of Power Sources AU - Tucker, Michael C AU - Lau, Grace Y AU - Jacobson, Craig P AU - Visco, Steven J AU - De Jonghe, Lutgard C AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., MS 62-203, Berkeley, CA 94720, USA, mctucker@lbl.gov Y1 - 2010/05/15/ PY - 2010 DA - 2010 May 15 SP - 3119 EP - 3123 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 10 SN - 0378-7753, 0378-7753 KW - Environmental Engineering Abstracts; Environment Abstracts KW - Fuel technology KW - Metals KW - Atmosphere KW - Alloys KW - Catalysts KW - melting point KW - EE 20:Air Pollution: Monitoring, Control & Remediation KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746271421?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Cu-YSZ+cermet+solid+oxide+fuel+cell+anode+prepared+by+high-temperature+sintering&rft.au=Tucker%2C+Michael+C%3BLau%2C+Grace+Y%3BJacobson%2C+Craig+P%3BVisco%2C+Steven+J%3BDe+Jonghe%2C+Lutgard+C&rft.aulast=Tucker&rft.aufirst=Michael&rft.date=2010-05-15&rft.volume=195&rft.issue=10&rft.spage=3119&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2009.12.003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Metals; Fuel technology; Alloys; Catalysts; Atmosphere; melting point DO - http://dx.doi.org/10.1016/j.jpowsour.2009.12.003 ER - TY - JOUR T1 - Semiconductor nanowire: what's next? AN - 733517070; 20394412 AB - In this perspective, we take a critical look at the research progress within the nanowire community for the past decade. We discuss issues on the discovery of fundamentally new phenomena versus performance benchmarking for many of the nanowire applications. We also notice that both the bottom-up and top-down approaches have played important roles in advancing our fundamental understanding of this new class of nanostructures. Finally we attempt to look into the future and offer our personal opinions on what the future trends will be in nanowire research. JF - Nano letters AU - Yang, Peidong AU - Yan, Ruoxue AU - Fardy, Melissa AD - Department of Chemistry, University of California, Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. p_yang@berkeley.edu Y1 - 2010/05/12/ PY - 2010 DA - 2010 May 12 SP - 1529 EP - 1536 VL - 10 IS - 5 KW - Index Medicus KW - Nanostructures -- ultrastructure KW - Nanostructures -- chemistry KW - Nanotechnology -- instrumentation KW - Semiconductors KW - Nanotechnology -- trends UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733517070?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nano+letters&rft.atitle=Semiconductor+nanowire%3A+what%27s+next%3F&rft.au=Yang%2C+Peidong%3BYan%2C+Ruoxue%3BFardy%2C+Melissa&rft.aulast=Yang&rft.aufirst=Peidong&rft.date=2010-05-12&rft.volume=10&rft.issue=5&rft.spage=1529&rft.isbn=&rft.btitle=&rft.title=Nano+letters&rft.issn=1530-6992&rft_id=info:doi/10.1021%2Fnl100665r LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-09-13 N1 - Date created - 2010-05-13 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1021/nl100665r ER - TY - JOUR T1 - Seasonal versus episodic performance evaluation for an Eulerian photochemical air quality model AN - 754561034; 13369665 AB - This study presents detailed evaluation of the seasonal and episodic performance of the Community Multiscale Air Quality (CMAQ) modeling system applied to simulate air quality at a fine grid spacing (4 km horizontal resolution) in central California, where ozone air pollution problems are severe. A rich aerometric database collected during the summer 2000 Central California Ozone Study (CCOS) is used to prepare model inputs and to evaluate meteorological simulations and chemical outputs. We examine both temporal and spatial behaviors of ozone predictions. We highlight synoptically driven high-ozone events (exemplified by the four intensive operating periods (IOPs)) for evaluating both meteorological inputs and chemical outputs (ozone and its precursors) and compare them to the summer average. For most of the summer days, cross-domain normalized gross errors are less than 25% for modeled hourly ozone, and normalized biases are between +/-15% for both hourly and peak (1 h and 8 h) ozone. The domain-wide aggregated metrics indicate similar performance between the IOPs and the whole summer with respect to predicted ozone and its precursors. Episode-to-episode differences in ozone predictions are more pronounced at a subregional level. The model performs consistently better in the San Joaquin Valley than other air basins, and episodic ozone predictions there are similar to the summer average. Poorer model performance (normalized peak ozone biases 15%) is found in the Sacramento Valley and the Bay Area and is most noticeable in episodes that are subject to the largest uncertainties in meteorological fields (wind directions in the Sacramento Valley and timing and strength of onshore flow in the Bay Area) within the boundary layer. JF - Journal of Geophysical Research. Atmospheres AU - Jin, Ling AU - Brown, Nancy J AU - Harley, Robert A AU - Bao, Jian-Wen AU - Michelson, Sara A AU - Wilczak, James M AD - Department of Atmospheric Sciences, Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2010/05/04/ PY - 2010 DA - 2010 May 04 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 115 IS - D09 SN - 2169-897X, 2169-897X KW - Pollution Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Meteorological & Geoastrophysical Abstracts KW - 0345 Atmospheric Composition and Structure: Pollution: urban and regional KW - 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry KW - 0368 Atmospheric Composition and Structure: Troposphere: constituent transport and chemistry KW - 0478 Biogeosciences: Pollution: urban, regional and global KW - model evaluation KW - air quality KW - central California KW - ozone KW - CMAQ KW - Photochemistry KW - Atmospheric pollution models KW - USA, California, San Joaquin Valley KW - Air quality KW - Wind fields KW - Ozone in troposphere KW - Sulfur dioxide KW - Photochemical atmospheric pollution KW - Atmospheric chemistry models KW - Meteorology KW - Photochemical air quality models KW - Seasonal variations KW - Ozone KW - Modelling KW - Atmospheric pollution KW - valleys KW - Simulation KW - Wind direction KW - Air pollution KW - Air pollution forecasting KW - Photochemicals KW - Numerical simulations KW - Boundary layers KW - summer KW - USA, California, Sacramento Valley KW - Q5 08503:Characteristics, behavior and fate KW - M2 551.510.42:Air Pollution (551.510.42) KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754561034?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aasfaaquaticpollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+Atmospheres&rft.atitle=Seasonal+versus+episodic+performance+evaluation+for+an+Eulerian+photochemical+air+quality+model&rft.au=Jin%2C+Ling%3BBrown%2C+Nancy+J%3BHarley%2C+Robert+A%3BBao%2C+Jian-Wen%3BMichelson%2C+Sara+A%3BWilczak%2C+James+M&rft.aulast=Jin&rft.aufirst=Ling&rft.date=2010-05-04&rft.volume=115&rft.issue=D09&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+Atmospheres&rft.issn=2169897X&rft_id=info:doi/10.1029%2F2009JD012680 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Photochemistry; Air pollution; Boundary layers; Simulation; Wind fields; Modelling; Ozone; Ozone in troposphere; Atmospheric pollution; Atmospheric pollution models; Numerical simulations; Photochemical atmospheric pollution; Atmospheric chemistry models; Air quality; Photochemical air quality models; Wind direction; Air pollution forecasting; Photochemicals; Sulfur dioxide; valleys; summer; Meteorology; Seasonal variations; USA, California, San Joaquin Valley; USA, California, Sacramento Valley DO - http://dx.doi.org/10.1029/2009JD012680 ER - TY - JOUR T1 - Comparison of energy efficiency between variable refrigerant flow systems and ground source heat pump systems AN - 883025837; 15316924 AB - With the current movement towards net zero energy buildings, many technologies are promoted with emphasis on their superior energy efficiency. The variable refrigerant flow (VRF) and ground source heat pump (GSHP) systems are probably the most competitive technologies among these. However, there are few studies reporting the energy efficiency of VRF systems compared with GSHP systems. In this article, a preliminary comparison of energy efficiency between the air-source VRF and GSHP systems is presented. The computer simulation results show that GSHP system is more energy efficient than the air-source VRF system for conditioning a small office building in two selected US climates. In general, GSHP system is more energy efficient than the air-source VRV system, especially when the building has significant heating loads. For buildings with less heating loads, the GSHP system could still perform better than the air-source VRF system in terms of energy efficiency, but the resulting energy savings may be marginal. JF - Energy and Buildings AU - Liu, Xiaobing AU - Hong, Tianzhen AD - Climatemaster, 7300 S.W. 44th Street, Oklahoma City, OK 73179, United States, thong@lbl.gov Y1 - 2010/05// PY - 2010 DA - May 2010 SP - 584 EP - 589 PB - Elsevier B.V., P.O. Box 564 Lausanne 1 CH-1001 Switzerland VL - 42 IS - 5 SN - 0378-7788, 0378-7788 KW - Environment Abstracts; Sustainability Science Abstracts KW - Building simulation KW - DOE-2 KW - Energy efficiency KW - GSHP KW - VRF KW - Heat exchangers KW - Climate KW - Energy conservation KW - Simulation KW - Refrigerants KW - Buildings KW - Technology KW - ENA 03:Energy KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/883025837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+and+Buildings&rft.atitle=Comparison+of+energy+efficiency+between+variable+refrigerant+flow+systems+and+ground+source+heat+pump+systems&rft.au=Liu%2C+Xiaobing%3BHong%2C+Tianzhen&rft.aulast=Liu&rft.aufirst=Xiaobing&rft.date=2010-05-01&rft.volume=42&rft.issue=5&rft.spage=584&rft.isbn=&rft.btitle=&rft.title=Energy+and+Buildings&rft.issn=03787788&rft_id=info:doi/10.1016%2Fj.enbuild.2009.10.028 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-08-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Energy efficiency; Heat exchangers; Climate; Energy conservation; Simulation; Refrigerants; Buildings; Technology DO - http://dx.doi.org/10.1016/j.enbuild.2009.10.028 ER - TY - JOUR T1 - An asymptotic model of seismic reflection from a permeable layer AN - 742927429; 2010-059174 AB - Analysis of compression wave propagation in a poroelastic medium predicts a peak of reflection from a high-permeability layer in the low-frequency end of the spectrum. An explicit formula expresses the resonant frequency through the elastic moduli of the solid skeleton, the permeability of the reservoir rock, the fluid viscosity and compressibility, and the reservoir thickness. This result is obtained through a low-frequency asymptotic analysis of Biot's model of poroelasticity. A review of the derivation of the main equations from the Hooke's law, momentum and mass balance equations, and Darcy's law suggests an alternative new physical interpretation of some coefficients of the classical poroelasticity. The velocity of wave propagation, the attenuation factor, and the wave number are expressed in the form of power series with respect to a small dimensionless parameter. The absolute value of this parameter is equal to the product of the kinematic reservoir fluid mobility and the wave frequency. Retaining only the leading terms of the series leads to explicit and relatively simple expressions for the reflection and transmission coefficients for a planar wave crossing an interface between two permeable media, as well as wave reflection from a thin highly permeable layer (a lens). Practical applications of the obtained asymptotic formulae are seismic modeling, inversion, and attribute analysis. Copyright 2010 Springer Science+Business Media B.V. and The Author(s) JF - Transport in Porous Media AU - Silin, Dmitriy AU - Goloshubin, Gennady A2 - Panfilov, Mikhail Y1 - 2010/05// PY - 2010 DA - May 2010 SP - 233 EP - 256 PB - Springer, Dordrecht VL - 83 IS - 1 SN - 0169-3913, 0169-3913 KW - hydrology KW - elasticity KW - shear stress KW - elastic properties KW - Darcy's law KW - poroelasticity KW - geophysical methods KW - reflection methods KW - elastic constants KW - layered materials KW - seismic methods KW - reservoir rocks KW - aquifers KW - kinematics KW - Hooke's law KW - viscosity KW - fluid pressure KW - mass balance KW - propagation KW - permeability KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742927429?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=An+asymptotic+model+of+seismic+reflection+from+a+permeable+layer&rft.au=Silin%2C+Dmitriy%3BGoloshubin%2C+Gennady&rft.aulast=Silin&rft.aufirst=Dmitriy&rft.date=2010-05-01&rft.volume=83&rft.issue=1&rft.spage=233&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-010-9533-8 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 55 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; Darcy's law; elastic constants; elastic properties; elasticity; fluid pressure; geophysical methods; Hooke's law; hydrology; kinematics; layered materials; mass balance; permeability; poroelasticity; propagation; reflection methods; reservoir rocks; seismic methods; shear stress; viscosity DO - http://dx.doi.org/10.1007/s11242-010-9533-8 ER - TY - JOUR T1 - Free-floating ultrathin two-dimensional crystals from sequence-specific peptoid polymers. AN - 733908593; 20383129 AB - The design and synthesis of protein-like polymers is a fundamental challenge in materials science. A biomimetic approach is to explore the impact of monomer sequence on non-natural polymer structure and function. We present the aqueous self-assembly of two peptoid polymers into extremely thin two-dimensional (2D) crystalline sheets directed by periodic amphiphilicity, electrostatic recognition and aromatic interactions. Peptoids are sequence-specific, oligo-N-substituted glycine polymers designed to mimic the structure and functionality of proteins. Mixing a 1:1 ratio of two oppositely charged peptoid 36mers of a specific sequence in aqueous solution results in the formation of giant, free-floating sheets with only 2.7 nm thickness. Direct visualization of aligned individual peptoid chains in the sheet structure was achieved using aberration-corrected transmission electron microscopy. Specific binding of a protein to ligand-functionalized sheets was also demonstrated. The synthetic flexibility and biocompatibility of peptoids provide a flexible and robust platform for integrating functionality into defined 2D nanostructures. JF - Nature materials AU - Nam, Ki Tae AU - Shelby, Sarah A AU - Choi, Philip H AU - Marciel, Amanda B AU - Chen, Ritchie AU - Tan, Li AU - Chu, Tammy K AU - Mesch, Ryan A AU - Lee, Byoung-Chul AU - Connolly, Michael D AU - Kisielowski, Christian AU - Zuckermann, Ronald N AD - Molecular Foundry; National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. Y1 - 2010/05// PY - 2010 DA - May 2010 SP - 454 EP - 460 VL - 9 IS - 5 SN - 1476-1122, 1476-1122 KW - Buffers KW - 0 KW - Ligands KW - Peptoids KW - Polymers KW - Water KW - 059QF0KO0R KW - Glycine KW - TE7660XO1C KW - Index Medicus KW - Static Electricity KW - Crystallization KW - Nanostructures -- ultrastructure KW - Nanostructures -- chemistry KW - Water -- chemistry KW - Models, Chemical KW - Amino Acid Sequence KW - Sequence Homology, Amino Acid KW - Fourier Analysis KW - Protein Binding KW - Protein Structure, Secondary KW - Polymers -- chemical synthesis KW - Peptoids -- chemistry KW - Biomimetics KW - Polymers -- chemistry KW - Glycine -- analogs & derivatives UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733908593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+materials&rft.atitle=Free-floating+ultrathin+two-dimensional+crystals+from+sequence-specific+peptoid+polymers.&rft.au=Nam%2C+Ki+Tae%3BShelby%2C+Sarah+A%3BChoi%2C+Philip+H%3BMarciel%2C+Amanda+B%3BChen%2C+Ritchie%3BTan%2C+Li%3BChu%2C+Tammy+K%3BMesch%2C+Ryan+A%3BLee%2C+Byoung-Chul%3BConnolly%2C+Michael+D%3BKisielowski%2C+Christian%3BZuckermann%2C+Ronald+N&rft.aulast=Nam&rft.aufirst=Ki&rft.date=2010-05-01&rft.volume=9&rft.issue=5&rft.spage=454&rft.isbn=&rft.btitle=&rft.title=Nature+materials&rft.issn=14761122&rft_id=info:doi/10.1038%2Fnmat2742 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-05-10 N1 - Date created - 2010-04-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1038/nmat2742 ER - TY - JOUR T1 - Experimental factors affecting PCR-based estimates of microbial species richness and evenness AN - 1093458573; 16969362 AB - Pyrosequencing of 16S rRNA gene amplicons for microbial community profiling can, for equivalent costs, yield more than two orders of magnitude more sensitivity than traditional PCR cloning and Sanger sequencing. With this increased sensitivity and the ability to analyze multiple samples in parallel, it has become possible to evaluate several technical aspects of PCR-based community structure profiling methods. We tested the effect of amplicon length and primer pair on estimates of species richness (number of species) and evenness (relative abundance of species) by assessing the potentially tractable microbial community residing in the termite hindgut. Two regions of the 16S rRNA gene were sequenced from one of two common priming sites, spanning the V1-V2 or V8 regions, using amplicons ranging in length from 352 to 1443 bp. Our results show that both amplicon length and primer pair markedly influence estimates of richness and evenness. However, estimates of species evenness are consistent among different primer pairs targeting the same region. These results highlight the importance of experimental methodology when comparing diversity estimates across communities. JF - ISME Journal AU - Engelbrektson, Anna AU - Kunin, Victor AU - Wrighton, Kelly C AU - Zvenigorodsky, Natasha AU - Chen, Feng AU - Ochman, Howard AU - Hugenholtz, Philip AD - Department of Energy Joint Genome Institute, Walnut Creek, CA, USA Y1 - 2010/05// PY - 2010 DA - May 2010 SP - 642 EP - 647 PB - Nature Publishing Group, The Macmillan Building London N1 9XW United Kingdom VL - 4 IS - 5 SN - 1751-7362, 1751-7362 KW - Microbiology Abstracts A: Industrial & Applied Microbiology KW - Abundance KW - Community structure KW - Hindgut KW - Polymerase chain reaction KW - Primers KW - Species richness KW - rRNA 16S KW - Isoptera KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1093458573?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=ISME+Journal&rft.atitle=Experimental+factors+affecting+PCR-based+estimates+of+microbial+species+richness+and+evenness&rft.au=Engelbrektson%2C+Anna%3BKunin%2C+Victor%3BWrighton%2C+Kelly+C%3BZvenigorodsky%2C+Natasha%3BChen%2C+Feng%3BOchman%2C+Howard%3BHugenholtz%2C+Philip&rft.aulast=Engelbrektson&rft.aufirst=Anna&rft.date=2010-05-01&rft.volume=4&rft.issue=5&rft.spage=642&rft.isbn=&rft.btitle=&rft.title=ISME+Journal&rft.issn=17517362&rft_id=info:doi/10.1038%2Fismej.2009.153 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-10-01 N1 - Last updated - 2012-10-19 N1 - SubjectsTermNotLitGenreText - Hindgut; Community structure; Abundance; Polymerase chain reaction; Primers; rRNA 16S; Species richness; Isoptera DO - http://dx.doi.org/10.1038/ismej.2009.153 ER - TY - CPAPER T1 - Identification of the Charge Carriers in Cerium Phosphate Ceramics T2 - 217th Meeting of the Electrochemical Society AN - 754229109; 5784828 JF - 217th Meeting of the Electrochemical Society AU - Ray, H L AU - Adelstein, N AU - De Jonghe, L Y1 - 2010/04/25/ PY - 2010 DA - 2010 Apr 25 KW - Cerium KW - Phosphate KW - Ceramics KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754229109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=217th+Meeting+of+the+Electrochemical+Society&rft.atitle=Identification+of+the+Charge+Carriers+in+Cerium+Phosphate+Ceramics&rft.au=Ray%2C+H+L%3BAdelstein%2C+N%3BDe+Jonghe%2C+L&rft.aulast=Ray&rft.aufirst=H&rft.date=2010-04-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=217th+Meeting+of+the+Electrochemical+Society&rft.issn=&rft_id=info:doi/ L2 - http://www.electrochem.org/meetings/biannual/217/assets/217_meeting_pr LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - The Influence of Mechanical Properties on the Long-Term Cycling Performance of Graphite Anode T2 - 217th Meeting of the Electrochemical Society AN - 754228404; 5785396 JF - 217th Meeting of the Electrochemical Society AU - Zheng, H AU - Liu, G AU - Song, X AU - Cheung, D AU - Rigdway, P AU - Battaglia, V S Y1 - 2010/04/25/ PY - 2010 DA - 2010 Apr 25 KW - Anodes KW - Mechanical properties KW - Graphite KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754228404?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=217th+Meeting+of+the+Electrochemical+Society&rft.atitle=The+Influence+of+Mechanical+Properties+on+the+Long-Term+Cycling+Performance+of+Graphite+Anode&rft.au=Zheng%2C+H%3BLiu%2C+G%3BSong%2C+X%3BCheung%2C+D%3BRigdway%2C+P%3BBattaglia%2C+V+S&rft.aulast=Zheng&rft.aufirst=H&rft.date=2010-04-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=217th+Meeting+of+the+Electrochemical+Society&rft.issn=&rft_id=info:doi/ L2 - http://www.electrochem.org/meetings/biannual/217/assets/217_meeting_pr LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Modulating native-like residual structure in the fully denatured state of photoactive yellow protein affects its refolding. AN - 733546234; 20178976 AB - Residual structure in the fully unfolded state is a key element for understanding protein folding. We show that the residual structure in fully denatured photoactive yellow protein (PYP) is affected by isomerization of its p-coumaric acid (pCA) chromophore. The exposure of total surface area and hydrophobic surface area upon unfolding was quantified by denaturant m values and heat capacity changes (DeltaC(p)), respectively. The exposure of the buried surface area upon the unfolding of the acid-denatured state of PYP containing trans-pCA is approximately 20% smaller than that of the native state. In contrast, for the partially unfolded pB photocycle intermediate containing cis-pCA, unfolding-induced exposure of the surface area is not decreased. These results show that pCA photoisomerization reduces residual structure in the fully unfolded state. Thus, residual structure in the fully unfolded state of PYP is under direct experimental control by photoexcitation. The sensitivity of the unfolded state to pCA isomerization provides a novel criterion that residual structure in the unfolded state of PYP is native-like, involving native-like protein-chromophore interactions. A largely untested prediction is that native-like residual structure facilitates the conformational search during folding. In the case of PYP, refolding from the less disordered fully unfolded state containing trans-pCA indeed is substantially accelerated. The burial of hydrophobic surface area in the fully unfolded state suggests that a significant part of the hydrophobic collapse process already has occurred in the denatured state. JF - The Journal of biological chemistry AU - Lee, Byoung-Chul AU - Kumauchi, Masato AU - Hoff, Wouter D AD - Biological Nanostructures Facility, The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. Y1 - 2010/04/23/ PY - 2010 DA - 2010 Apr 23 SP - 12579 EP - 12586 VL - 285 IS - 17 KW - Bacterial Proteins KW - 0 KW - Coumaric Acids KW - Photoreceptors, Microbial KW - photoactive yellow protein, Bacteria KW - Index Medicus KW - Hydrophobic and Hydrophilic Interactions KW - Protein Denaturation KW - Isomerism KW - Coumaric Acids -- chemistry KW - Halorhodospira halophila -- chemistry KW - Bacterial Proteins -- chemistry KW - Protein Folding KW - Photoreceptors, Microbial -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733546234?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+biological+chemistry&rft.atitle=Modulating+native-like+residual+structure+in+the+fully+denatured+state+of+photoactive+yellow+protein+affects+its+refolding.&rft.au=Lee%2C+Byoung-Chul%3BKumauchi%2C+Masato%3BHoff%2C+Wouter+D&rft.aulast=Lee&rft.aufirst=Byoung-Chul&rft.date=2010-04-23&rft.volume=285&rft.issue=17&rft.spage=12579&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+biological+chemistry&rft.issn=1083-351X&rft_id=info:doi/10.1074%2Fjbc.M109.065821 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-05-20 N1 - Date created - 2010-04-19 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Biochemistry. 2000 Nov 28;39(47):14392-9 [11087391] Proc Natl Acad Sci U S A. 2009 Feb 10;106(6):1796-801 [19181849] Protein Sci. 2001 Jun;10(6):1100-12 [11369848] Science. 2001 Jul 20;293(5529):487-9 [11463915] Proc Natl Acad Sci U S A. 2001 Jul 31;98(16):9062-7 [11470891] Science. 2002 Mar 1;295(5560):1719-22 [11872841] Proc Natl Acad Sci U S A. 2003 Sep 30;100(20):11345-9 [14504401] Proc Natl Acad Sci U S A. 2004 Aug 24;101(34):12497-502 [15314216] Biochim Biophys Acta. 1985 Jan 23;806(1):175-83 [2981543] Biochemistry. 1987 Jan 27;26(2):418-23 [3828315] Crit Rev Biochem Mol Biol. 1990;25(4):281-305 [2225910] Science. 1992 Sep 11;257(5076):1559-63 [1523410] Adv Protein Chem. 1992;43:313-61 [1442323] J Bacteriol. 1993 May;175(10):3096-104 [8491725] Protein Sci. 1993 Jul;2(7):1155-60 [8358298] Biochemistry. 1994 Nov 29;33(47):13959-62 [7947803] Protein Sci. 1995 Apr;4(4):561-602 [7613459] Protein Sci. 1995 Oct;4(10):2138-48 [8535251] FASEB J. 1996 Jan;10(1):27-34 [8566543] Biochemistry. 1996 Mar 5;35(9):3059-62 [8608146] FEBS Lett. 1996 Mar 11;382(1-2):73-8 [8612767] Biophys J. 1996 Jul;71(1):365-80 [8804619] Biochemistry. 1996 Nov 26;35(47):14671-8 [8942626] Biochemistry. 1999 Jan 19;38(3):1009-17 [9893997] Structure. 2005 Jul;13(7):953-62 [16004868] Crit Rev Biochem Mol Biol. 2005 Jul-Aug;40(4):181-9 [16126485] J Am Chem Soc. 2006 Jan 25;128(3):1002-8 [16417392] Proc Natl Acad Sci U S A. 2006 Aug 1;103(31):11561-6 [16855050] Nature. 2007 May 3;447(7140):106-9 [17429353] Biochemistry. 2001 Mar 6;40(9):2854-9 [11258896] N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1074/jbc.M109.065821 ER - TY - JOUR T1 - On the complex conductivity signatures of calcite precipitation AN - 754560721; 13369671 AB - Calcite is a mineral phase that frequently precipitates during subsurface remediation or geotechnical engineering processes. This precipitation can lead to changes in the overall behavior of the system, such as flow alternation and soil strengthening. Because induced calcite precipitation is typically quite variable in space and time, monitoring its distribution in the subsurface is a challenge. In this research, we conducted a laboratory column experiment to investigate the potential of complex conductivity as a mean to remotely monitor calcite precipitation. Calcite precipitation was induced in a glass bead (3 mm) packed column through abiotic mixing of CaCl2 and Na2CO3 solutions. The experiment continued for 12 days with a constant precipitation rate of ~0.6 milimole/d. Visual observations and scanning electron microscopy imaging revealed two distinct phases of precipitation: an earlier phase dominated by well distributed, discrete precipitates and a later phase characterized by localized precipitate aggregation and associated pore clogging. Complex conductivity measurements exhibited polarization signals that were characteristic of both phases of calcite precipitation, with the precipitation volume and crystal size controlling the overall polarization magnitude and relaxation time constant. We attribute the observed responses to polarization at the electrical double layer surrounding calcite crystals. Our experiment illustrates the potential of electrical methods for characterizing the distribution and aggregation state of nonconductive minerals like calcite. Advancing our ability to quantify geochemical transformations using such noninvasive methods is expected to facilitate our understanding of complex processes associated with natural subsurface systems as well as processes induced through engineered treatments (such as environmental remediation and carbon sequestration). JF - Journal of Geophysical Research. G. Biogeosciences AU - Wu, Yuxin AU - Hubbard, Susan AU - Williams, Kenneth Hurst AU - Ajo-Franklin, Jonathan AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2010/04/22/ PY - 2010 DA - 2010 Apr 22 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA, [mailto:service@agu.org], [URL:http://www.agu.org] VL - 115 IS - G00 SN - 2169-8953, 2169-8953 KW - Ecology Abstracts; Water Resources Abstracts KW - 0416 Biogeosciences: Biogeophysics KW - 0418 Biogeosciences: Bioremediation KW - 3914 Mineral Physics: Electrical properties KW - complex conductivity KW - induced polarization KW - electrical double layer KW - calcite KW - precipitation KW - biogeophysics KW - Transformation KW - Conductivity KW - Calcite KW - Precipitation KW - Crystals KW - Polarization KW - imaging KW - Soil KW - Engineering KW - Carbon KW - Remediation KW - Monitoring KW - Minerals KW - D 04040:Ecosystem and Ecology Studies KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754560721?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.atitle=On+the+complex+conductivity+signatures+of+calcite+precipitation&rft.au=Wu%2C+Yuxin%3BHubbard%2C+Susan%3BWilliams%2C+Kenneth+Hurst%3BAjo-Franklin%2C+Jonathan&rft.aulast=Wu&rft.aufirst=Yuxin&rft.date=2010-04-22&rft.volume=115&rft.issue=G00&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.issn=21698953&rft_id=info:doi/10.1029%2F2009JG001129 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Transformation; Soil; Carbon; Crystals; Precipitation; Polarization; imaging; Minerals; calcite; Engineering; Conductivity; Remediation; Calcite; Monitoring DO - http://dx.doi.org/10.1029/2009JG001129 ER - TY - CPAPER T1 - Monitoring Fluid Concentration and Phase Changes in Flow Experiments at the Proposed Dusel co2 Facility T2 - 62nd Annual Meeting of the Rocky Mountain Section, Geological Society of America AN - 754218811; 5766317 JF - 62nd Annual Meeting of the Rocky Mountain Section, Geological Society of America AU - Dobson, Patrick AU - Peters, Catherine AU - Ramakrishnan, T AU - Stabinski, Eric AU - Liang, Kenneth AU - Verma, Sandeep AU - Oldenburg, Curtis AU - Freifeld, Barry AU - Wang, Joseph Y1 - 2010/04/21/ PY - 2010 DA - 2010 Apr 21 KW - Carbon dioxide KW - Phase changes KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754218811?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=62nd+Annual+Meeting+of+the+Rocky+Mountain+Section%2C+Geological+Society+of+America&rft.atitle=Monitoring+Fluid+Concentration+and+Phase+Changes+in+Flow+Experiments+at+the+Proposed+Dusel+co2+Facility&rft.au=Dobson%2C+Patrick%3BPeters%2C+Catherine%3BRamakrishnan%2C+T%3BStabinski%2C+Eric%3BLiang%2C+Kenneth%3BVerma%2C+Sandeep%3BOldenburg%2C+Curtis%3BFreifeld%2C+Barry%3BWang%2C+Joseph&rft.aulast=Dobson&rft.aufirst=Patrick&rft.date=2010-04-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=62nd+Annual+Meeting+of+the+Rocky+Mountain+Section%2C+Geological+Society+of+America&rft.issn=&rft_id=info:doi/ L2 - http://www.geosociety.org/sectdiv/rockymtn/2010mtg/rm2010_awp.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - A Coupled Thermal-Hydrological-Mechanical-Chemical-Biological Experimental Facility at Dusel Homestake T2 - 62nd Annual Meeting of the Rocky Mountain Section, Geological Society of America AN - 754214285; 5766296 JF - 62nd Annual Meeting of the Rocky Mountain Section, Geological Society of America AU - Sonnenthal, Eric AU - Elsworth, Derek AU - Freifeld, Barry AU - Lowell, Robert AU - Maher, Kate AU - Mailloux, Brian AU - Uzunlar, Nuri Y1 - 2010/04/21/ PY - 2010 DA - 2010 Apr 21 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754214285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=62nd+Annual+Meeting+of+the+Rocky+Mountain+Section%2C+Geological+Society+of+America&rft.atitle=A+Coupled+Thermal-Hydrological-Mechanical-Chemical-Biological+Experimental+Facility+at+Dusel+Homestake&rft.au=Sonnenthal%2C+Eric%3BElsworth%2C+Derek%3BFreifeld%2C+Barry%3BLowell%2C+Robert%3BMaher%2C+Kate%3BMailloux%2C+Brian%3BUzunlar%2C+Nuri&rft.aulast=Sonnenthal&rft.aufirst=Eric&rft.date=2010-04-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=62nd+Annual+Meeting+of+the+Rocky+Mountain+Section%2C+Geological+Society+of+America&rft.issn=&rft_id=info:doi/ L2 - http://www.geosociety.org/sectdiv/rockymtn/2010mtg/rm2010_awp.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Parallel I/O Performance: From Events to Ensembles T2 - 24th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2010) AN - 754183607; 5726004 JF - 24th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2010) AU - Uselton, Andrew AU - Howison, Mark AU - Wright, Nicholas AU - Skinner, David AU - Keen, Noel AU - Shalf, John AU - Karavanic, Karen AU - Oliker, Leonid Y1 - 2010/04/19/ PY - 2010 DA - 2010 Apr 19 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754183607?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=24th+IEEE+International+Parallel+and+Distributed+Processing+Symposium+%28IPDPS+2010%29&rft.atitle=Parallel+I%2FO+Performance%3A+From+Events+to+Ensembles&rft.au=Uselton%2C+Andrew%3BHowison%2C+Mark%3BWright%2C+Nicholas%3BSkinner%2C+David%3BKeen%2C+Noel%3BShalf%2C+John%3BKaravanic%2C+Karen%3BOliker%2C+Leonid&rft.aulast=Uselton&rft.aufirst=Andrew&rft.date=2010-04-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=24th+IEEE+International+Parallel+and+Distributed+Processing+Symposium+%28IPDPS+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ipdps.org/ipdps2010/abs_2010.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Optimizing and Tuning the Fast Multipole Method for State-of-the-Art Multicore Architectures T2 - 24th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2010) AN - 754176953; 5726002 JF - 24th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2010) AU - Chandramowlishwaran, Aparna AU - Williams, Samuel AU - Oliker, Leonid AU - Lashuk, Ilya AU - Biros, George AU - Vuduc, Richard Y1 - 2010/04/19/ PY - 2010 DA - 2010 Apr 19 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754176953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=24th+IEEE+International+Parallel+and+Distributed+Processing+Symposium+%28IPDPS+2010%29&rft.atitle=Optimizing+and+Tuning+the+Fast+Multipole+Method+for+State-of-the-Art+Multicore+Architectures&rft.au=Chandramowlishwaran%2C+Aparna%3BWilliams%2C+Samuel%3BOliker%2C+Leonid%3BLashuk%2C+Ilya%3BBiros%2C+George%3BVuduc%2C+Richard&rft.aulast=Chandramowlishwaran&rft.aufirst=Aparna&rft.date=2010-04-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=24th+IEEE+International+Parallel+and+Distributed+Processing+Symposium+%28IPDPS+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ipdps.org/ipdps2010/abs_2010.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Oversubscription on Multicore Processors T2 - 24th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2010) AN - 754164995; 5726070 JF - 24th IEEE International Parallel and Distributed Processing Symposium (IPDPS 2010) AU - Iancu, Costin AU - Hofmeyr, Steven AU - Blagojevic, Filip AU - Zheng, Yili Y1 - 2010/04/19/ PY - 2010 DA - 2010 Apr 19 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754164995?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=24th+IEEE+International+Parallel+and+Distributed+Processing+Symposium+%28IPDPS+2010%29&rft.atitle=Oversubscription+on+Multicore+Processors&rft.au=Iancu%2C+Costin%3BHofmeyr%2C+Steven%3BBlagojevic%2C+Filip%3BZheng%2C+Yili&rft.aulast=Iancu&rft.aufirst=Costin&rft.date=2010-04-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=24th+IEEE+International+Parallel+and+Distributed+Processing+Symposium+%28IPDPS+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ipdps.org/ipdps2010/abs_2010.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - TCGA - Phase II: The promise and challenges - Genomic characterization T2 - 101st Annual Meeting of the American Association for Cancer Research AN - 754246754; 5796842 JF - 101st Annual Meeting of the American Association for Cancer Research AU - Gray, Joe Y1 - 2010/04/17/ PY - 2010 DA - 2010 Apr 17 KW - Genomics KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754246754?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=101st+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.atitle=TCGA+-+Phase+II%3A+The+promise+and+challenges+-+Genomic+characterization&rft.au=Gray%2C+Joe&rft.aulast=Gray&rft.aufirst=Joe&rft.date=2010-04-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=101st+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.issn=&rft_id=info:doi/ L2 - http://www.aacr.org/home/scientists/meetings--workshops/aacr-101st-ann LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Breast cancer systems biology T2 - 101st Annual Meeting of the American Association for Cancer Research AN - 754223804; 5801908 JF - 101st Annual Meeting of the American Association for Cancer Research AU - Gray, Joe Y1 - 2010/04/17/ PY - 2010 DA - 2010 Apr 17 KW - Breast cancer KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754223804?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=101st+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.atitle=Breast+cancer+systems+biology&rft.au=Gray%2C+Joe&rft.aulast=Gray&rft.aufirst=Joe&rft.date=2010-04-17&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=101st+Annual+Meeting+of+the+American+Association+for+Cancer+Research&rft.issn=&rft_id=info:doi/ L2 - http://www.aacr.org/home/scientists/meetings--workshops/aacr-101st-ann LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Chemical Profiling of the Plant Cellwall through Raman Microspectroscopy T2 - 2010 IEEE International Symposium on Biomedical Imaging (ISBI 2010) AN - 754175903; 5725475 JF - 2010 IEEE International Symposium on Biomedical Imaging (ISBI 2010) AU - Han, Ju AU - Singh, Seema AU - Sun, Lan AU - Simmons, Blake AU - Auer, Manfred AU - Parvin, Bahram Y1 - 2010/04/14/ PY - 2010 DA - 2010 Apr 14 KW - Profiling KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754175903?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+IEEE+International+Symposium+on+Biomedical+Imaging+%28ISBI+2010%29&rft.atitle=Chemical+Profiling+of+the+Plant+Cellwall+through+Raman+Microspectroscopy&rft.au=Han%2C+Ju%3BSingh%2C+Seema%3BSun%2C+Lan%3BSimmons%2C+Blake%3BAuer%2C+Manfred%3BParvin%2C+Bahram&rft.aulast=Han&rft.aufirst=Ju&rft.date=2010-04-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+IEEE+International+Symposium+on+Biomedical+Imaging+%28ISBI+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.biomedicalimaging.org/RegularProgram.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - A Multi-Site Hedonic Analysis of Residential Property Value Impacts Surrounding Existing Wind Power Projects in the U.S. T2 - 26th Annual Meeting of the American Real Estate Society (ARES 2010) AN - 754210339; 5768837 JF - 26th Annual Meeting of the American Real Estate Society (ARES 2010) AU - Hoen, Ben AU - Wiser, Ryan AU - Cappers, Peter AU - Thayer, Mark AU - Sethi, Gautam Y1 - 2010/04/13/ PY - 2010 DA - 2010 Apr 13 KW - USA KW - Real estate KW - Economics KW - Wind energy KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754210339?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=26th+Annual+Meeting+of+the+American+Real+Estate+Society+%28ARES+2010%29&rft.atitle=A+Multi-Site+Hedonic+Analysis+of+Residential+Property+Value+Impacts+Surrounding+Existing+Wind+Power+Projects+in+the+U.S.&rft.au=Hoen%2C+Ben%3BWiser%2C+Ryan%3BCappers%2C+Peter%3BThayer%2C+Mark%3BSethi%2C+Gautam&rft.aulast=Hoen&rft.aufirst=Ben&rft.date=2010-04-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=26th+Annual+Meeting+of+the+American+Real+Estate+Society+%28ARES+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.etnpconferences.net/ares/ares2010/PDF/2010PrintedProgram.pd LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Proceedings of the National Academy of Sciences of the United States of America AN - 1800392651; 2016-054561 JF - Proceedings of the National Academy of Sciences of the United States of America AU - Bunch, Ted E AU - West, Allen AU - Firestone, Richard B AU - Kennett, James P AU - Wittke, James H AU - Kinzie, Charles R AU - Wolbach, Wendy S Y1 - 2010/04/13/ PY - 2010 DA - 2010 Apr 13 SP - 1 PB - National Academy of Sciences, Washington, DC VL - 107 IS - 15 SN - 0027-8424, 0027-8424 KW - United States KW - isotopes KW - Os-188/Os-187 KW - platinum group KW - Lake Hind KW - Alberta KW - stable isotopes KW - iridium KW - upper Pleistocene KW - Cenozoic KW - upper Weichselian KW - Weichselian KW - Clovis KW - diamond KW - Younger Dryas KW - spherules KW - Quaternary KW - isotope ratios KW - paleomagnetism KW - native elements KW - impacts KW - Canada KW - metals KW - Arizona KW - Cochise County Arizona KW - Pleistocene KW - Western Canada KW - osmium KW - 24:Quaternary geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1800392651?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.au=Bunch%2C+Ted+E%3BWest%2C+Allen%3BFirestone%2C+Richard+B%3BKennett%2C+James+P%3BWittke%2C+James+H%3BKinzie%2C+Charles+R%3BWolbach%2C+Wendy+S&rft.aulast=Bunch&rft.aufirst=Ted&rft.date=2010-04-13&rft.volume=107&rft.issue=15&rft.spage=E58&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.1001156107 L2 - http://www.pnas.org/content/by/year LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2016-01-01 N1 - Number of references - 5 N1 - PubXState - DC N1 - Document feature - illus. N1 - SuppNotes - For reference to discussion see Paquay, F. S., et. al., Proceedings of the National Academy of Sciences of the United States of America, Vol. 106, No. 51, p. 21505-21510, DOI: 10.1073/pnas.0908874106, 2009; for reference to original see Firestone, R. B., et. al., Proceedings of the National Academy of Sciences of the United States of America, Vol. 104, No. 41, p. 16016-16021, DOI: 10.1073/pnas.0706977104, 2007 N1 - Last updated - 2016-06-30 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - Alberta; Arizona; Canada; Cenozoic; Clovis; Cochise County Arizona; diamond; impacts; iridium; isotope ratios; isotopes; Lake Hind; metals; native elements; Os-188/Os-187; osmium; paleomagnetism; platinum group; Pleistocene; Quaternary; spherules; stable isotopes; United States; upper Pleistocene; upper Weichselian; Weichselian; Western Canada; Younger Dryas DO - http://dx.doi.org/10.1073/pnas.1001156107 ER - TY - CPAPER T1 - Comparing GPU Implementations of Bilateral and Anisotropic Diffusion Filters for 3D Biomedical Datasets T2 - 2010 SIAM Conference on Imaging Science (IS10) AN - 754180365; 5732878 JF - 2010 SIAM Conference on Imaging Science (IS10) AU - Howison, Mark Y1 - 2010/04/12/ PY - 2010 DA - 2010 Apr 12 KW - Filters KW - Diffusion KW - Anisotropy KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754180365?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Imaging+Science+%28IS10%29&rft.atitle=Comparing+GPU+Implementations+of+Bilateral+and+Anisotropic+Diffusion+Filters+for+3D+Biomedical+Datasets&rft.au=Howison%2C+Mark&rft.aulast=Howison&rft.aufirst=Mark&rft.date=2010-04-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Imaging+Science+%28IS10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=IS10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Retinopathy Diagnosis from Ocular Fundus Image Analysis T2 - 2010 SIAM Conference on Imaging Science (IS10) AN - 754160379; 5732881 JF - 2010 SIAM Conference on Imaging Science (IS10) AU - Ushizima, Daniela AU - Medeiros, Fatima Y1 - 2010/04/12/ PY - 2010 DA - 2010 Apr 12 KW - Retinopathy KW - Image processing KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754160379?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Imaging+Science+%28IS10%29&rft.atitle=Retinopathy+Diagnosis+from+Ocular+Fundus+Image+Analysis&rft.au=Ushizima%2C+Daniela%3BMedeiros%2C+Fatima&rft.aulast=Ushizima&rft.aufirst=Daniela&rft.date=2010-04-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Imaging+Science+%28IS10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=IS10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - CPAPER T1 - Assembly and function of Drosophila melanogaster centromeric chromatin in meiosis and development T2 - 51st Annual Drosophila Research Conference AN - 754170604; 5731131 JF - 51st Annual Drosophila Research Conference AU - Dunleavy, Elaine AU - Karpen, Gary Y1 - 2010/04/07/ PY - 2010 DA - 2010 Apr 07 KW - Chromatin KW - Meiosis KW - Drosophila melanogaster KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754170604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Drosophila+Research+Conference&rft.atitle=Assembly+and+function+of+Drosophila+melanogaster+centromeric+chromatin+in+meiosis+and+development&rft.au=Dunleavy%2C+Elaine%3BKarpen%2C+Gary&rft.aulast=Dunleavy&rft.aufirst=Elaine&rft.date=2010-04-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Drosophila+Research+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.drosophila-conf.org/2010/pdf/programbook/abstracts_final.pd LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Effect of key parameters on the photocatalytic oxidation of toluene at low concentrations in air under 254 + 185 nm UV irradiation AN - 746302137; 12972767 AB - The effect of key experimental parameters on the removal of toluene under 254 + 185 nm irradiation was investigated using a benchtop photocatalytic flow reactor. Toluene was introduced at low concentrations between 10 and 500 ppbv, typical of indoor environments, and reacted on TiO sub(2)-coated Raschig rings. Two different TiO sub(2)-coated rings were prepared: in one case, by dip-coating using a P25 aqueous suspension and, on the other, using an organic/inorganic sol-gel method that produced thin films of mesoporous anatase. Flow rates in the photoreactor varied between 4 L min super(-1) and 125 mL min super(-1), leading to residence times in the range 100 ms < tau < 2 s. Toluene removal efficiencies were between 30% and 90%, indicating that the system did not achieve total conversion under the present experimental conditions. For each air flow rate, the conversion of toluene was significantly higher when the reactor length was 10 cm, as compared with 5 cm; however, only marginal increases in conversions were achieved in the two reactor lengths at equal residence time and different concentrations of toluene, suggesting that the system is effectively behaving as an ideal reactor and that the reaction is first-order in the concentration of toluene. Experiments were carried out between 0% and 66% relative humidity (RH), the fastest reaction rate being observed at moderately low humidity conditions (10% RH). Formaldehyde was formed as a partial oxidation byproduct at low and at high residence times (240 and 960 ms), although higher formaldehyde molar yields (up to 20%) were observed at low tau (240 ms) and moderate humidity conditions (10% and 33%), suggesting that both tau and RH can be optimized to reduce the formation of harmful intermediates. Toluene removal efficiency increased with the TiO sub(2) thickness (i.e., mass) until a maximum value of 500 nm, beyond which the removal efficiency did not increase further. JF - Applied Catalysis B: Environmental AU - Quici, Natalia AU - Vera, Maria L AU - Choi, Hyeok AU - Puma, Gianluca Li AU - Dionysiou, Dionysios D AU - Litter, Marta I AU - Destaillats, Hugo AD - Gerencia Quimica, Comision Nacional de Energia Atomica, Av. Gral. Paz 1499, 1650 San Martin, Prov. de Buenos Aires, Argentina, HDestaillats@lbl.gov Y1 - 2010/04/06/ PY - 2010 DA - 2010 Apr 06 SP - 312 EP - 319 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 95 IS - 3-4 SN - 0926-3373, 0926-3373 KW - Pollution Abstracts; Environment Abstracts KW - Toluene KW - Byproducts KW - Humidity KW - Formaldehyde KW - Flow rates KW - Photooxidation KW - Ultraviolet radiation KW - Indoor environments KW - Catalysis KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746302137?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+Catalysis+B%3A+Environmental&rft.atitle=Effect+of+key+parameters+on+the+photocatalytic+oxidation+of+toluene+at+low+concentrations+in+air+under+254+%2B+185+nm+UV+irradiation&rft.au=Quici%2C+Natalia%3BVera%2C+Maria+L%3BChoi%2C+Hyeok%3BPuma%2C+Gianluca+Li%3BDionysiou%2C+Dionysios+D%3BLitter%2C+Marta+I%3BDestaillats%2C+Hugo&rft.aulast=Quici&rft.aufirst=Natalia&rft.date=2010-04-06&rft.volume=95&rft.issue=3-4&rft.spage=312&rft.isbn=&rft.btitle=&rft.title=Applied+Catalysis+B%3A+Environmental&rft.issn=09263373&rft_id=info:doi/10.1016%2Fj.apcatb.2010.01.009 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Toluene; Ultraviolet radiation; Byproducts; Photooxidation; Formaldehyde; Humidity; Indoor environments; Flow rates; Catalysis DO - http://dx.doi.org/10.1016/j.apcatb.2010.01.009 ER - TY - CPAPER T1 - Heuristics for Accelerating Electronic Structure Calculations T2 - Eleventh Copper Mountain Conference on Iterative Methods (CMCIM 2010) AN - 742831474; 5703433 JF - Eleventh Copper Mountain Conference on Iterative Methods (CMCIM 2010) AU - Yang, Chao AU - Meza, Juan Y1 - 2010/04/04/ PY - 2010 DA - 2010 Apr 04 KW - Problem solving KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742831474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Eleventh+Copper+Mountain+Conference+on+Iterative+Methods+%28CMCIM+2010%29&rft.atitle=Heuristics+for+Accelerating+Electronic+Structure+Calculations&rft.au=Yang%2C+Chao%3BMeza%2C+Juan&rft.aulast=Yang&rft.aufirst=Chao&rft.date=2010-04-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eleventh+Copper+Mountain+Conference+on+Iterative+Methods+%28CMCIM+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://grandmaster.colorado.edu/~copper/2010/program.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - CPAPER T1 - Accelerating Parallel Iterative Eigensolvers for Large Scale First-Principles Materials Science Calculations T2 - Eleventh Copper Mountain Conference on Iterative Methods (CMCIM 2010) AN - 742823953; 5703382 JF - Eleventh Copper Mountain Conference on Iterative Methods (CMCIM 2010) AU - Canning, Andrew Y1 - 2010/04/04/ PY - 2010 DA - 2010 Apr 04 KW - Materials technology KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742823953?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Eleventh+Copper+Mountain+Conference+on+Iterative+Methods+%28CMCIM+2010%29&rft.atitle=Accelerating+Parallel+Iterative+Eigensolvers+for+Large+Scale+First-Principles+Materials+Science+Calculations&rft.au=Canning%2C+Andrew&rft.aulast=Canning&rft.aufirst=Andrew&rft.date=2010-04-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eleventh+Copper+Mountain+Conference+on+Iterative+Methods+%28CMCIM+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://grandmaster.colorado.edu/~copper/2010/program.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - CPAPER T1 - A Supernodal Approach to ILU with Partial Pivoting T2 - Eleventh Copper Mountain Conference on Iterative Methods (CMCIM 2010) AN - 742819005; 5703384 JF - Eleventh Copper Mountain Conference on Iterative Methods (CMCIM 2010) AU - Li, Xiaoye AU - Shao, Meiyue Y1 - 2010/04/04/ PY - 2010 DA - 2010 Apr 04 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742819005?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Eleventh+Copper+Mountain+Conference+on+Iterative+Methods+%28CMCIM+2010%29&rft.atitle=A+Supernodal+Approach+to+ILU+with+Partial+Pivoting&rft.au=Li%2C+Xiaoye%3BShao%2C+Meiyue&rft.aulast=Li&rft.aufirst=Xiaoye&rft.date=2010-04-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Eleventh+Copper+Mountain+Conference+on+Iterative+Methods+%28CMCIM+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://grandmaster.colorado.edu/~copper/2010/program.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - JOUR T1 - Mechanistic aspects of the fracture toughness of elk antler bone AN - 918070757; 16181890 AB - Bone is an adaptive material that is designed for different functional requirements; indeed, bones have a variety of properties depending on their role in the body. To understand the mechanical response of bone requires the elucidation of its structure-function relationships. Here, we examine the fracture toughness of compact bone of elk antler, which is an extremely fast-growing primary bone designed for a totally different function than human (secondary) bone. We find that antler in the transverse (breaking) orientation is one of the toughest biological materials known. Its resistance to fracture is achieved during crack growth (extrinsically) by a combination of gross crack deflection/twisting and crack bridging via uncracked "ligaments" in the crack wake, both mechanisms activated by microcracking primarily at lamellar boundaries. We present an assessment of the toughening mechanisms acting in antler as compared to human cortical bone, and identify an enhanced role of inelastic deformation in antler which further contributes to its (intrinsic) toughness. JF - Acta Biomaterialia AU - Launey, ME AU - Chen, P-Y AU - McKittrick, J AU - Ritchie, RO AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, roritchie@lbl.gov Y1 - 2010/04// PY - 2010 DA - Apr 2010 SP - 1505 EP - 1514 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 6 IS - 4 SN - 1742-7061, 1742-7061 KW - Biotechnology and Bioengineering Abstracts KW - Biomaterials KW - Elk antler KW - Cortical bone KW - Fracture toughness KW - Resistance-curves KW - Antlers KW - Ligaments KW - Structure-function relationships KW - Bone (cortical) KW - Fractures KW - Boundaries KW - Mechanical properties KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918070757?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Biomaterialia&rft.atitle=Mechanistic+aspects+of+the+fracture+toughness+of+elk+antler+bone&rft.au=Launey%2C+ME%3BChen%2C+P-Y%3BMcKittrick%2C+J%3BRitchie%2C+RO&rft.aulast=Launey&rft.aufirst=ME&rft.date=2010-04-01&rft.volume=6&rft.issue=4&rft.spage=1505&rft.isbn=&rft.btitle=&rft.title=Acta+Biomaterialia&rft.issn=17427061&rft_id=info:doi/10.1016%2Fj.actbio.2009.11.026 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Antlers; Ligaments; Structure-function relationships; Bone (cortical); Boundaries; Fractures; Mechanical properties DO - http://dx.doi.org/10.1016/j.actbio.2009.11.026 ER - TY - JOUR T1 - Poroelastic measurement schemes resulting in complete data sets for granular and other anisotropic porous media AN - 856757499; 13021009 AB - Poroelastic analysis usually progresses from assumed knowledge of dry or drained porous media to the predicted behavior of fluid-saturated and undrained porous media. Unfortunately, the experimental situation is often incompatible with these assumptions, especially when field data (from hydrological or oil/gas reservoirs) are involved. The present work considers several different experimental scenarios typified by one in which a set of undrained poroelastic (stiffness) constants has been measured using either ultrasound or seismic wave analysis, while some or all of the dry or drained constants are normally unknown. Drained constants for such a poroelastic system can be deduced for isotropic systems from available data if a complete set of undrained compliance data for the principal stresses are available - together with a few other commonly measured quantities such as porosity, fluid bulk modulus, and grain bulk modulus. Similar results are also developed here for anisotropic systems having up to orthotropic symmetry if the system is granular (i.e., composed of solid grains assembled into a solid matrix, either by a cementation process or by applied stress) and the grains are known to be elastically homogeneous. Finally, the analysis is also fully developed for anisotropic systems with nonhomogeneous (more than one mineral type), but still isotropic, grains - as well as for uniform collections of anisotropic grains as long as their axes of symmetry are either perfectly aligned or perfectly random. JF - International Journal of Engineering Science AU - Berryman, James G AD - University of California, Lawrence Berkeley National Laboratory, One Cyclotron Road, MS 90R1116, Berkeley, CA 94720, USA, jgberryman@lbl.gov Y1 - 2010/04// PY - 2010 DA - Apr 2010 SP - 446 EP - 459 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 48 IS - 4 SN - 0020-7225, 0020-7225 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - Anisotropic poroelasticity KW - Aocks KW - Drained constants KW - Undrained constants KW - Skempton coefficients KW - Seismic waves KW - Porous Media KW - Oil and gas industry KW - Compliance KW - Porosity KW - Stress KW - Solids KW - Seismic Waves KW - Cementation KW - Behavior KW - Ultrasonics KW - Hydrologic Data KW - Reservoirs KW - Bulk modulus KW - Q2 09405:Oil and gas KW - SW 6010:Structures UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/856757499?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Engineering+Science&rft.atitle=Poroelastic+measurement+schemes+resulting+in+complete+data+sets+for+granular+and+other+anisotropic+porous+media&rft.au=Berryman%2C+James+G&rft.aulast=Berryman&rft.aufirst=James&rft.date=2010-04-01&rft.volume=48&rft.issue=4&rft.spage=446&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Engineering+Science&rft.issn=00207225&rft_id=info:doi/10.1016%2Fj.ijengsci.2009.11.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-03-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Seismic waves; Oil and gas industry; Ultrasonics; Porosity; Bulk modulus; Cementation; Behavior; Porous Media; Compliance; Stress; Solids; Reservoirs; Hydrologic Data; Seismic Waves DO - http://dx.doi.org/10.1016/j.ijengsci.2009.11.005 ER - TY - JOUR T1 - Monitoring fluid concentration and phase changes in flow experiments at the proposed DUSEL CO (sub 2) facility AN - 756291303; 2010-082837 AB - DUSEL CO2 is a proposed experimental facility at DUSEL for studying CO (sub 2) migration and trapping mechanisms associated with geologic sequestration of CO (sub 2) . The proposed facility consists of three sand-filled long column pressure vessels with a length of approximately 500 m and a diameter of approximately 1 m supported within a 3 m-diameter raised bore shaft. Each vessel will have an inner fluid-filled tube with a diameter of approximately 25 cm designed to house an array of detectors to monitor fluids within the sand-filled annulus during the flow experiments. External heaters will be used to control the temperature and compressors will be used to adjust the pressure gradient. One of the proposed experiments consists of the evaluation of fluid flow processes and associated residual gas trapping and dissolution during the upward rise of a buoyant CO (sub 2) slug in a sand-filled column saturated with brine under hydrostatic pressure and "natural" geothermal gradient conditions spanning the range from supercritical to gaseous conditions for CO (sub 2) . Critical to the experimental facility is the monitoring of fluid conditions at high resolution within the vessels. The tube in the center of each vessel will serve as a proxy well to accommodate a variety of existing down-hole technologies to monitor flow column conditions. A combinable nuclear magnetic resonance tool will be used to discriminate between water and CO (sub 2) -filled pores; similar measurements will be conducted using a reservoir saturation tool. Sonic (1-20 kHz) and ultrasonic (100s of kHz) tools will also be used to image fluids, using differences in acoustic impedance to distinguish liquid from gas phases. These measurements will be used to construct a vertical saturation profile, and to determine how it changes over time as the CO (sub 2) plume moves upwards. Distributed temperature and pressure sensors will also be deployed outside of the inner tube to provide continuous in situ data. The various data and interpretations from the suite of technologies deployed will collectively be used to calibrate models that predict the vertical flow of CO (sub 2) and brine in porous media, and to compare the spatial resolution and sensitivity of different logging tools. JF - Abstracts with Programs - Geological Society of America AU - Dobson, Patrick F AU - Peters, Catherine A AU - Ramakrishnan, T S AU - Stabinski, Eric AU - Liang, Kenneth AU - Verma, Sandeep AU - Oldenburg, Curtis M AU - Freifeld, Barry M AU - Wang, Joseph S AU - Anonymous Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 7 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 3 SN - 0016-7592, 0016-7592 KW - United States KW - liquid phase KW - mines KW - experimental studies KW - monitoring KW - Deep Underground Science and Engineering Laboratory KW - carbon sequestration KW - pressure KW - gaseous phase KW - underground storage KW - engineering properties KW - site exploration KW - Homestake Mine KW - DUSEL KW - Lawrence County South Dakota KW - Lead South Dakota KW - temperature KW - carbon dioxide KW - underground installations KW - hydrodynamics KW - abandoned mines KW - South Dakota KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/756291303?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Monitoring+fluid+concentration+and+phase+changes+in+flow+experiments+at+the+proposed+DUSEL+CO+%28sub+2%29+facility&rft.au=Dobson%2C+Patrick+F%3BPeters%2C+Catherine+A%3BRamakrishnan%2C+T+S%3BStabinski%2C+Eric%3BLiang%2C+Kenneth%3BVerma%2C+Sandeep%3BOldenburg%2C+Curtis+M%3BFreifeld%2C+Barry+M%3BWang%2C+Joseph+S%3BAnonymous&rft.aulast=Dobson&rft.aufirst=Patrick&rft.date=2010-04-01&rft.volume=42&rft.issue=3&rft.spage=7&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 62nd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2010-01-01 N1 - PubXState - CO N1 - SuppNotes - Abstract 8-1 N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - abandoned mines; carbon dioxide; carbon sequestration; Deep Underground Science and Engineering Laboratory; DUSEL; engineering properties; experimental studies; gaseous phase; Homestake Mine; hydrodynamics; Lawrence County South Dakota; Lead South Dakota; liquid phase; mines; monitoring; pressure; site exploration; South Dakota; temperature; underground installations; underground storage; United States ER - TY - JOUR T1 - A coupled thermal-hydrological-mechanical-chemical-biological experimental facility at DUSEL Homestake AN - 756291285; 2010-082816 AB - Most natural and engineered earth system processes involve strong coupling of hydrological, thermal, mechanical, chemical, and sometimes biological processes in rocks that are heterogeneous at a wide range of spatial scales. Fluids - primarily water, but also CO (sub 2) , hydrocarbons and volcanic gases - exert a pervasive influence on processes in the Earth's crust where their transport is moderated by flow through fractured heated rock under stress. A preliminary design has been formulated for a large-scale subsurface experimental facility at the 4850 foot level depth of the Homestake Mine to investigate coupled Thermal-Hydrological-Mechanical-Chemical-Biological (THMCB) processes in fractured rock at depth. The experiment will be part of the proposed Deep Underground Science and Engineering Laboratory (DUSEL) in the Homestake Mine, South Dakota. Geochemical, isotopic, microbiological, mechanical and transport experiments and numerical modeling are being used to guide the experimental design and to evaluate the anticipated time and spatial scales of the coupled THMCB processes. In particular, the experimental facility will probe the nonlinear feedbacks between processes that can dynamically modify physical and chemical properties - those that have taken place and those that will take place, as analogs of natural and engineered processes. Initial conditions and history are only known roughly at best, and the boundary conditions have likely varied over time as well. Processes such as multicomponent chemical and thermal diffusion, multiphase flow, advection, and thermal expansion/contraction, are taking place simultaneously in rocks that are structurally and chemically complex-heterogeneous assemblages of mineral grains, pores, and fractures-and visually opaque. The only way to fully understand such processes is to carry out well-controlled experiments at a range of scales (grain/pore-scale to decimeter-scale) that can be interrogated and modeled. The THMCB experimental facility is also intended to be a unique laboratory for testing hypotheses regarding effects of heat and chemical reactions on microbial communities. We describe an array of investigations that may be completed in such a facility related to the evolution of natural and engineered processes. JF - Abstracts with Programs - Geological Society of America AU - Sonnenthal, Eric AU - Elsworth, Derek AU - Freifeld, Barry AU - Lowell, Robert AU - Maher, Kate AU - Mailloux, Brian J AU - Uzunlar, Nuri AU - Anonymous Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 4 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 3 SN - 0016-7592, 0016-7592 KW - United States KW - mines KW - experimental studies KW - Deep Underground Science and Engineering Laboratory KW - site exploration KW - Homestake Mine KW - DUSEL KW - Lawrence County South Dakota KW - mechanical properties KW - planning KW - underground installations KW - hydrodynamics KW - laboratories KW - abandoned mines KW - South Dakota KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/756291285?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=A+coupled+thermal-hydrological-mechanical-chemical-biological+experimental+facility+at+DUSEL+Homestake&rft.au=Sonnenthal%2C+Eric%3BElsworth%2C+Derek%3BFreifeld%2C+Barry%3BLowell%2C+Robert%3BMaher%2C+Kate%3BMailloux%2C+Brian+J%3BUzunlar%2C+Nuri%3BAnonymous&rft.aulast=Sonnenthal&rft.aufirst=Eric&rft.date=2010-04-01&rft.volume=42&rft.issue=3&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 62nd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2010-01-01 N1 - PubXState - CO N1 - SuppNotes - Abstract 3-8 N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - abandoned mines; Deep Underground Science and Engineering Laboratory; DUSEL; experimental studies; Homestake Mine; hydrodynamics; laboratories; Lawrence County South Dakota; mechanical properties; mines; planning; site exploration; South Dakota; underground installations; United States ER - TY - JOUR T1 - From basic physics to complex hydrogeology; a unique approach for deriving hydraulic conductivity in an underground lab AN - 756291268; 2010-082814 AB - The Sanford Underground Laboratory is the interim facility for the future federally funded Deep Underground Science and Engineering Lab (DUSEL). The lab is situated in Precambrian metasedimentary and metavolcanic rocks intersected by Tertiary dike swarms. The Homestake mine was closed in 2001 and the pump system keeping the mine dry was turned off in 2003. By 2008 the water level had risen 3470 ft in the 8000-ft deep mine. Reactivation of the pump system in 2008 has led to a reduction in water level of more than 500 ft. Investigation of previously flooded areas has revealed that iron dissolved in the water oxidized as the mine flooded, staining the submerged rocks; however, isolated air pockets have been identified by long stretches of unstained areas along the top of tunnels and other openings. A new approach is being tested to determine rock permeability through analysis of air pocket properties in several rock formations and multiple depths. Combining the ideal gas law, Darcy's equation, and field measurements, a model has been created to determine the mass of air forced from the air pocket into the rock matrix over a period of time. Hydraulic conductivity values will be derived, based on the volume of gas lost into the rock. JF - Abstracts with Programs - Geological Society of America AU - Jones, Tessa L AU - Van Beek, Jason K AU - Wang, Joe S AU - Davis, Arden D AU - Anonymous Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 4 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 3 SN - 0016-7592, 0016-7592 KW - United States KW - mines KW - Deep Underground Science and Engineering Laboratory KW - site exploration KW - Homestake Mine KW - DUSEL KW - Lawrence County South Dakota KW - ground water KW - models KW - levels KW - metamorphic rocks KW - underground installations KW - hydraulic conductivity KW - permeability KW - abandoned mines KW - South Dakota KW - mine dewatering KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/756291268?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=From+basic+physics+to+complex+hydrogeology%3B+a+unique+approach+for+deriving+hydraulic+conductivity+in+an+underground+lab&rft.au=Jones%2C+Tessa+L%3BVan+Beek%2C+Jason+K%3BWang%2C+Joe+S%3BDavis%2C+Arden+D%3BAnonymous&rft.aulast=Jones&rft.aufirst=Tessa&rft.date=2010-04-01&rft.volume=42&rft.issue=3&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 62nd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2010-01-01 N1 - PubXState - CO N1 - SuppNotes - Abstract 3-6 N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - abandoned mines; Deep Underground Science and Engineering Laboratory; DUSEL; ground water; Homestake Mine; hydraulic conductivity; Lawrence County South Dakota; levels; metamorphic rocks; mine dewatering; mines; models; permeability; site exploration; South Dakota; underground installations; United States ER - TY - JOUR T1 - Hydrologic, climatic, and ground motion studies at Homestake DUSEL AN - 756291263; 2010-082813 AB - Earth science-related research at Homestake DUSEL has been occurring along several avenues since 2008 by SDSMT faculty, students, and research partners. This group has focused on hydrology, meteorology, and slow ground motion. Part of the motivation for these experiments has been to establish an early baseline dataset of physical parameters to benefit planned future research. Hydrologic work has been directed toward measurement of water reduction at the facility and fracture flow testing that has been performed on the 4850-ft level. Meteorology stations have been established on the 1250, 2000, 2600, and 4850-ft levels with one surface station. Ground motion has been recorded on the 2000-ft level where two types of tiltmeters have been installed. Early results have indicated water information critical to future facility construction and utilization, the climatic sensitivity of the underground spaces to human disturbances, and the detection of earth tides and secondary motions associated with blasting on the 4850-ft level. Each of these systems will expanded as the facility grows to provide viable data for the foreseeable future. These data are open to public access through established websites at SDSMT with links from the Sanford Underground Laboratory. JF - Abstracts with Programs - Geological Society of America AU - Stetler, Larry AU - Davis, Arden D AU - Salve, Rohit AU - Volk, James AU - VanBeek, Jason AU - Anonymous Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 4 PB - Geological Society of America (GSA), Boulder, CO VL - 42 IS - 3 SN - 0016-7592, 0016-7592 KW - United States KW - mines KW - Deep Underground Science and Engineering Laboratory KW - tilt KW - site exploration KW - Earth tides KW - Homestake Mine KW - DUSEL KW - Lawrence County South Dakota KW - ground water KW - planning KW - movement KW - underground installations KW - laboratories KW - climate KW - abandoned mines KW - South Dakota KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/756291263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Hydrologic%2C+climatic%2C+and+ground+motion+studies+at+Homestake+DUSEL&rft.au=Stetler%2C+Larry%3BDavis%2C+Arden+D%3BSalve%2C+Rohit%3BVolk%2C+James%3BVanBeek%2C+Jason%3BAnonymous&rft.aulast=Stetler&rft.aufirst=Larry&rft.date=2010-04-01&rft.volume=42&rft.issue=3&rft.spage=4&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, Rocky Mountain Section, 62nd annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2010-01-01 N1 - PubXState - CO N1 - SuppNotes - Abstract 3-5 N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - abandoned mines; climate; Deep Underground Science and Engineering Laboratory; DUSEL; Earth tides; ground water; Homestake Mine; laboratories; Lawrence County South Dakota; mines; movement; planning; site exploration; South Dakota; tilt; underground installations; United States ER - TY - JOUR T1 - Reductions in incident coronary heart disease risk above guideline physical activity levels in men AN - 746158775; 12982325 AB - One-half of Americans currently meet guideline physical activity levels. For these individuals, exceeding guideline levels may provide additional health benefits. Methods - Incident physician-diagnosed myocardial infarction and angina, revascularization procedures (CABG, PTCA), and ischemic heart disease deaths during 7.7-year follow-up were compared to baseline usual distance run in 35,402 male runners. Results - Men reported 467 incident CHD and the National Death Index identified an additional 54 ischemic heart disease deaths. Per km/day run, the men's risks declined 5% for fatal and nonfatal CHD (P = 0.001), nonfatal CHD (P = 0.0008), and revascularization procedures (P = 0.002). Their risks for nonfatal myocardial infarctions and angina declined 7% (P = 0.02) and 10% (P = 0.003), respectively. Compared to 9 km/day run produced risks 65% lower for angina (P = 0.008), 29% lower for nonfatal CHD (P = 0.04), and 26% lower for fatal and nonfatal CHD (P = 0.06). Conclusions - Exceeding guideline physical activity levels produce important CHD-risk reductions. JF - Atherosclerosis AU - Williams, Paul T AD - Life Sciences Division, Lawrence Berkeley National Laboratory, Donner Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, United States, ptwilliams@lbl.gov Y1 - 2010/04// PY - 2010 DA - Apr 2010 SP - 524 EP - 527 PB - Elsevier Ireland Ltd VL - 209 IS - 2 SN - 0021-9150, 0021-9150 KW - Physical Education Index KW - Death KW - Men KW - Running KW - Health KW - Blood diseases KW - Exercise KW - Heart diseases KW - PE 140:Business, Marketing & Sports Equipment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746158775?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aphysicaleducation&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atherosclerosis&rft.atitle=Reductions+in+incident+coronary+heart+disease+risk+above+guideline+physical+activity+levels+in+men&rft.au=Williams%2C+Paul+T&rft.aulast=Williams&rft.aufirst=Paul&rft.date=2010-04-01&rft.volume=209&rft.issue=2&rft.spage=524&rft.isbn=&rft.btitle=&rft.title=Atherosclerosis&rft.issn=00219150&rft_id=info:doi/10.1016%2Fj.atherosclerosis.2009.09.018 LA - English DB - Physical Education Index N1 - Date revised - 2010-07-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Death; Men; Running; Blood diseases; Health; Exercise; Heart diseases DO - http://dx.doi.org/10.1016/j.atherosclerosis.2009.09.018 ER - TY - JOUR T1 - Isotopic mass dependence of metal cation diffusion coefficients in liquid water AN - 742927688; 2010-062106 AB - Isotope distributions in natural systems can be highly sensitive to the mass (m) dependence of solute diffusion coefficients (D) in liquid water. Isotope geochemistry studies routinely have assumed that this mass dependence either is negligible (as predicted by hydrodynamic theories) or follows a kinetic-theory-like inverse square-root relationship (D varies as m (super -0.5) ). However, our recent experimental results and molecular dynamics (MD) simulations showed that the mass dependence of D is intermediate between hydrodynamic and kinetic theory predictions (D varies as m (super -beta ) with 0 < or = beta < 0.2 for Li (super +) , Cl (super -) , Mg (super 2+) , and the noble gases). In this paper, we present new MD simulations and experimental results for Na (super +) , K (super +) , Cs (super +) , and Ca (super 2+) that confirm the generality of the inverse power-law relation D varies as m (super -beta ) . Our new findings allow us to develop a general description of the influence of solute valence and radius on the mass dependence of D for monatomic solutes in liquid water. This mass dependence decreases with solute radius and with the magnitude of solute valence. Molecular-scale analysis of our MD simulation results reveals that these trends derive from the exponent beta being smallest for those solutes whose motions are most strongly coupled to solvent hydrodynamic modes. JF - Geochimica et Cosmochimica Acta AU - Bourg, I C AU - Richter, F M AU - Christensen, J N AU - Sposito, G Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 2249 EP - 2256 PB - Elsevier, New York, NY VL - 74 IS - 8 SN - 0016-7037, 0016-7037 KW - water KW - liquid phase KW - calcium KW - alkaline earth metals KW - experimental studies KW - diffusion KW - isotopes KW - alkali metals KW - solubility KW - simulation KW - hydrochemistry KW - measurement KW - hydrothermal conditions KW - models KW - metals KW - mathematical methods KW - potassium KW - hydrodynamics KW - cations KW - molecular dynamics KW - kinetics KW - geochemistry KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742927688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Isotopic+mass+dependence+of+metal+cation+diffusion+coefficients+in+liquid+water&rft.au=Bourg%2C+I+C%3BRichter%2C+F+M%3BChristensen%2C+J+N%3BSposito%2C+G&rft.aulast=Bourg&rft.aufirst=I&rft.date=2010-04-01&rft.volume=74&rft.issue=8&rft.spage=2249&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2010.01.024 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 54 N1 - PubXState - NY N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkali metals; alkaline earth metals; calcium; cations; diffusion; experimental studies; geochemistry; hydrochemistry; hydrodynamics; hydrothermal conditions; isotopes; kinetics; liquid phase; mathematical methods; measurement; metals; models; molecular dynamics; potassium; simulation; solubility; water DO - http://dx.doi.org/10.1016/j.gca.2010.01.024 ER - TY - JOUR T1 - Hydrated goethite (alpha -FeOOH) (1 0 0) interface structure; ordered water and surface functional groups AN - 742925999; 2010-062068 AB - Goethite (alpha -FeOOH), an abundant and highly reactive iron oxyhydroxide mineral, has been the subject of numerous studies of environmental interface reactivity. However, such studies have been hampered by the lack of experimental constraints on aqueous interface structure, and especially of the surface water molecular arrangements. Structural information of this type is crucial because reactivity is dictated by the nature of the surface functional groups and the structure or distribution of water and electrolyte at the solid-solution interface. In this study we have investigated the goethite (1 0 0) surface using surface diffraction techniques, and have determined the relaxed surface structure, the surface functional groups, and the three dimensional nature of two distinct sorbed water layers. The crystal truncation rod (CTR) results show that the interface structure consists of a double hydroxyl, double water terminated interface with significant atom relaxations. Further, the double hydroxyl terminated surface dominates with an 89% contribution having a chiral subdomain structure on the (1 0 0) cleavage faces. The proposed interface stoichiometry is ((H (sub 2) O)--(H (sub 2) O)--OH (sub 2) --OH--Fe--O--O--Fe--R) with two types of terminal hydroxyls; a bidentate (B-type) hydroxo group and a monodentate (A-type) aquo group. Using the bond-valence approach the protonation states of the terminal hydroxyls are predicted to be OH type (bidentate hydroxyl with oxygen coupled to two Fe (super 3+) ions) and OH (sub 2) type (monodentate hydroxyl with oxygen tied to only one Fe (super 3+) ). A double layer three dimensional ordered water structure at the interface was determined from refinement of fits to the experimental data. Application of bond-valence constraints to the terminal hydroxyls with appropriate rotation of the water dipole moments allowed a plausible dipole orientation model as predicted. The structural results are discussed in terms of protonation and H-bonding at the interface, and the results provide an ideal basis for testing theoretical predictions of characteristic surface properties such as pK (sub a) , sorption equilibria, and surface water permittivity. JF - Geochimica et Cosmochimica Acta AU - Ghose, S K AU - Waychunas, G A AU - Trainor, T P AU - Eng, P J Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 1943 EP - 1953 PB - Elsevier, New York, NY VL - 74 IS - 7 SN - 0016-7037, 0016-7037 KW - surface properties KW - sorption KW - experimental studies KW - goethite KW - prediction KW - crystal structure KW - hydrochemistry KW - hydration KW - reactivity KW - chemical reactions KW - water-rock interaction KW - phase equilibria KW - oxides KW - water content KW - valency KW - stoichiometry KW - geochemistry KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742925999?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Hydrated+goethite+%28alpha+-FeOOH%29+%281+0+0%29+interface+structure%3B+ordered+water+and+surface+functional+groups&rft.au=Ghose%2C+S+K%3BWaychunas%2C+G+A%3BTrainor%2C+T+P%3BEng%2C+P+J&rft.aulast=Ghose&rft.aufirst=S&rft.date=2010-04-01&rft.volume=74&rft.issue=7&rft.spage=1943&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2009.12.015 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 61 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical reactions; crystal structure; experimental studies; geochemistry; goethite; hydration; hydrochemistry; oxides; phase equilibria; prediction; reactivity; sorption; stoichiometry; surface properties; valency; water content; water-rock interaction DO - http://dx.doi.org/10.1016/j.gca.2009.12.015 ER - TY - JOUR T1 - A variational model of disjoining pressure; liquid film on a non-planar surface AN - 742924532; 2010-059036 AB - Variational methods have been successfully used in modelling thin liquid films in numerous theoretical studies of wettability. In this article, the variational model of the disjoining pressure is extended to the general case of a two-dimensional solid surface. The Helmholtz free energy functional depends both on the disjoining pressure isotherm and on the shape of the solid surface. The augmented Young-Laplace equation (AYLE) is a nonlinear second-order partial differential equation. A number of solutions describing wetting films on spherical grains have been obtained. In the case of cylindrical films, the phase portrait technique describes the entire variety of mathematically feasible solutions. It turns out that a periodic solution, which would describe wave-like wetting films, does not satisfy Jacobi's condition of the classical calculus of variations. Therefore, such a solution is nonphysical. The roughness of the solid surface significantly affects liquid film stability. AYLE solutions suggest that film rupture is more likely at a location where the pore-wall surface is most exposed into the pore space, and the curvature is positive. Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Silin, Dmitriy AU - Virnovsky, George A2 - Panfilov, Mikhail Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 485 EP - 505 PB - Springer, Dordrecht VL - 82 IS - 3 SN - 0169-3913, 0169-3913 KW - liquid phase KW - hydrology KW - surface properties KW - pressure KW - capillary pressure KW - petroleum KW - free energy KW - fluid phase KW - equations KW - fluid dynamics KW - Laplace transformations KW - variations KW - two-dimensional models KW - geometry KW - models KW - mathematical methods KW - wettability KW - hydrodynamics KW - Young-Laplace equation KW - tension KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742924532?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=A+variational+model+of+disjoining+pressure%3B+liquid+film+on+a+non-planar+surface&rft.au=Silin%2C+Dmitriy%3BVirnovsky%2C+George&rft.aulast=Silin&rft.aufirst=Dmitriy&rft.date=2010-04-01&rft.volume=82&rft.issue=3&rft.spage=485&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9424-z L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 38 N1 - Document feature - illus. N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - capillary pressure; equations; fluid dynamics; fluid phase; free energy; geometry; hydrodynamics; hydrology; Laplace transformations; liquid phase; mathematical methods; models; petroleum; pressure; surface properties; tension; two-dimensional models; variations; wettability; Young-Laplace equation DO - http://dx.doi.org/10.1007/s11242-009-9424-z ER - TY - JOUR T1 - Fe site occupancy in magnetite-ulvoespinel solid solutions; a new approach using X-ray magnetic circular dichroism AN - 742906352; 2010-039418 AB - Ordering of Fe (super 3+) and Fe (super 2+) cations between octahedral and tetrahedral sites in synthetic members of the magnetite-ulvospinel (Fe (sub 3) O (sub 4) - Fe (sub 2) TiO (sub 4) ) solid-solution series was determined using Fe L (sub 2,3) -edge X-ray magnetic circular dichroism (XMCD) coupled with electron microprobe and chemical analysis, Ti L (sub 2,3) -edge and Fe K-edge X-ray absorption spectroscopy (XAS), and unit-cell parameters. Microprobe analyses, cell edges, and chemical FeO determinations showed that bulk compositions were stoichiometric magnetite-ulvospinel solid solutions. XMCD showed that the surface was sensitive to redox conditions, and samples required re-equilibration with solid-solid buffers. Detailed site-occupancy analysis gave Fe (super 2+) /Fe (super 3+) XMCD-intensity ratios close to stoichiometric values. L (sub 2,3) -edge XAS confirmed that Ti (super 4+) was restricted to octahedral sites. XMCD showed that significant Fe (super 2+) only entered the tetrahedral sites when Ti content was >0.40 atoms per formula unit (apfu), whereas Fe (super 2+) in octahedral sites increased from 1 apfu in magnetite to a maximum of approximately 1.4 apfu when Ti content was 0.45 apfu. As Ti content increased, a steady increase in Fe (super 2+) in tetrahedral sites was observable in the XMCD spectra, concurrent with a slow decrease in Fe (super 2+) in octahedral sites. Calculated magnetic moments decreased rapidly from magnetite (4.06 mu (sub B) ) to USP45 (1.5 mu (sub B) ), then more slowly toward ulvospinel (0mu (sub B) ). Two synthesized samples were maghemitized by re-equilibrating with an oxidizing buffer. XMCD showed that Fe (super 2+) oxidation, with concomitant vacancy formation, was restricted to octahedral sites. Through the direct measurement of Fe oxidation states, XMCD results can be used to rationalize the magnetic properties of titanomagnetites, along with oxidized titanomaghemitized analogs, in Earth's crustal rocks. JF - American Mineralogist AU - Pearce, Carolyn I AU - Henderson, C Michael B AU - Telling, Neil D AU - Pattrick, Richard A D AU - Charnock, John M AU - Coker, Victoria S AU - Arenholz, Elke AU - Tuna, Floriana AU - van der Laan, Gerrit Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 425 EP - 439 PB - Mineralogical Society of America, Washington, DC VL - 95 IS - 4 SN - 0003-004X, 0003-004X KW - ulvospinel KW - oxidation KW - unit cell KW - magnetic moment KW - X-ray magnetic circular dichroism KW - solid solution KW - iron KW - titanomagnetite KW - order-disorder KW - ferrous iron KW - ferric iron KW - metals KW - X-ray spectroscopy KW - X-ray analysis KW - oxides KW - cations KW - valency KW - crystal chemistry KW - stoichiometry KW - spectroscopy KW - titanomaghemite KW - magnetite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742906352?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Fe+site+occupancy+in+magnetite-ulvoespinel+solid+solutions%3B+a+new+approach+using+X-ray+magnetic+circular+dichroism&rft.au=Pearce%2C+Carolyn+I%3BHenderson%2C+C+Michael+B%3BTelling%2C+Neil+D%3BPattrick%2C+Richard+A+D%3BCharnock%2C+John+M%3BCoker%2C+Victoria+S%3BArenholz%2C+Elke%3BTuna%2C+Floriana%3Bvan+der+Laan%2C+Gerrit&rft.aulast=Pearce&rft.aufirst=Carolyn&rft.date=2010-04-01&rft.volume=95&rft.issue=4&rft.spage=425&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2010.3343 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 52 N1 - PubXState - DC N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - cations; crystal chemistry; ferric iron; ferrous iron; iron; magnetic moment; magnetite; metals; order-disorder; oxidation; oxides; solid solution; spectroscopy; stoichiometry; titanomaghemite; titanomagnetite; ulvospinel; unit cell; valency; X-ray analysis; X-ray magnetic circular dichroism; X-ray spectroscopy DO - http://dx.doi.org/10.2138/am.2010.3343 ER - TY - JOUR T1 - Sulfide oxidation observed using micro-Raman spectroscopy and micro-X-ray diffraction; the importance of water/rock ratios and pH conditions AN - 742898563; 2010-039436 AB - Oxidative dissolution of arsenopyrite and pyrite from two former mining sites located in the French Massif Central has been studied to determine some of the critical parameters controlling the formation of secondary phases. Micro-Raman spectroscopy (mu RS) and micro-scanning X-ray diffraction (mu SXRD) were used for mineralogical identification and for mapping the distribution of these alteration products. The two mining sites are characterized by different pH conditions and sedimentary environments. Enguiales exhibits acidic conditions (pH approximately 3) and consists of coarse-grained tailings on a steep slope, which have been leached by meteoric waters and represent an oxidizing environment with a high solid/solution ratio. In contrast, the Cheni site shows near neutral conditions (pH approximately 6.3) and consists of muddy tailings deposited in a settling basin, which exemplify an oxidizing environment with a low solid/solution ratio. Amorphous or poorly crystalline iron arsenate (e.g., amorphous scorodite or parasymplesite-like phase) are among the first products precipitated from oxidized arsenopyrites. These iron arsenates are highly mobile and are frequently observed in association with non-arsenian pyrites, where in some instances they have matured into more crystalline forms. Arsenic may also be trapped by amorphous or poorly crystalline iron (oxy)hydroxides, as has been observed for goethite or jarosite in the latter stages of sulfide oxidation. This study also shows that rings of elemental sulfur are formed around altered sulfides, but only when conditions are near neutral. JF - American Mineralogist AU - Courtin-Nomade, Alexandra AU - Bril, Hubert AU - Beny, Jean-Michel AU - Kunz, Martin AU - Tamura, Nobumichi Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 582 EP - 591 PB - Mineralogical Society of America, Washington, DC VL - 95 IS - 4 SN - 0003-004X, 0003-004X KW - mines KW - mine waste KW - Western Europe KW - X-ray diffraction data KW - sulfates KW - oxidation KW - Europe KW - solid solution KW - France KW - Raman spectra KW - arsenates KW - water-rock interaction KW - spectra KW - Central Massif KW - tailings KW - sulfides KW - pH KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742898563?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=American+Mineralogist&rft.atitle=Sulfide+oxidation+observed+using+micro-Raman+spectroscopy+and+micro-X-ray+diffraction%3B+the+importance+of+water%2Frock+ratios+and+pH+conditions&rft.au=Courtin-Nomade%2C+Alexandra%3BBril%2C+Hubert%3BBeny%2C+Jean-Michel%3BKunz%2C+Martin%3BTamura%2C+Nobumichi&rft.aulast=Courtin-Nomade&rft.aufirst=Alexandra&rft.date=2010-04-01&rft.volume=95&rft.issue=4&rft.spage=582&rft.isbn=&rft.btitle=&rft.title=American+Mineralogist&rft.issn=0003004X&rft_id=info:doi/10.2138%2Fam.2010.3331 L2 - http://ammin.geoscienceworld.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, copyright, Mineralogical Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. sketch map N1 - Last updated - 2012-06-07 N1 - CODEN - AMMIAY N1 - SubjectsTermNotLitGenreText - arsenates; Central Massif; Europe; France; mine waste; mines; oxidation; pH; Raman spectra; solid solution; spectra; sulfates; sulfides; tailings; water-rock interaction; Western Europe; X-ray diffraction data DO - http://dx.doi.org/10.2138/am.2010.3331 ER - TY - JOUR T1 - Investigation of hydromechanical processes during cyclic extraction recovery testing of a deformable rock fracture AN - 742896979; 2010-043840 AB - A recent analysis involving cyclic extraction recovery testing (CERT) of a deformable rock fracture made use of a fully coupled numerical flow and stress-strain model. This paper explores the suitability of more simple modeling approaches. In particular, detailed calculations associated with stress-strain coupling are avoided by assuming a constant total stress and a uniform fracture pressure. Such an assumption is likely to be valid when fractures are orders of magnitude more permeable than their surrounding rock matrix. The simplified modeling analysis has given new insights concerning hydromechanical processes during CERT. For large injection rates, variable fracture storage capacity is found to be the dominant process. During extraction cycles, accounting for rock compressibility and the three-dimensional nature of fluid flow in the rock is more important. Overall, the study highlights the usefulness of field data from multiple injection extraction-recovery cycles. These cycles cannot be treated independently but must be modeled as a whole, putting significant requirement on models and allowing robust physical insights to be obtained. JF - International Journal of Rock Mechanics and Mining Sciences (1997) AU - Mathias, Simon A AU - Tsang, Chin-Fu AU - van Reeuwijk, Maarten Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 517 EP - 522 PB - Elsevier, Oxford-New York VL - 47 IS - 3 SN - 1365-1609, 1365-1609 KW - fractures KW - physical properties KW - hydraulics KW - mechanical properties KW - mathematical models KW - deformation KW - permeability KW - rock mechanics KW - compressibility KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742896979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.atitle=Investigation+of+hydromechanical+processes+during+cyclic+extraction+recovery+testing+of+a+deformable+rock+fracture&rft.au=Mathias%2C+Simon+A%3BTsang%2C+Chin-Fu%3Bvan+Reeuwijk%2C+Maarten&rft.aulast=Mathias&rft.aufirst=Simon&rft.date=2010-04-01&rft.volume=47&rft.issue=3&rft.spage=517&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Rock+Mechanics+and+Mining+Sciences+%281997%29&rft.issn=13651609&rft_id=info:doi/10.1016%2Fj.ijrmms.2009.12.008 L2 - http://www.sciencedirect.com/science/journal/13651609 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 25 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - IJRMA2 N1 - SubjectsTermNotLitGenreText - compressibility; deformation; fractures; hydraulics; mathematical models; mechanical properties; permeability; physical properties; rock mechanics DO - http://dx.doi.org/10.1016/j.ijrmms.2009.12.008 ER - TY - JOUR T1 - Demand response in U.S. electricity markets: Empirical evidence AN - 1671261717; 12972929 AB - Empirical evidence concerning demand response (DR) resources is needed in order to establish baseline conditions, develop standardized methods to assess DR availability and performance, and to build confidence among policymakers, utilities, system operators, and stakeholders that DR resources do offer a viable, cost-effective alternative to supply-side investments. This paper summarizes the existing contribution of DR resources in U.S. electric power markets. In 2008, customers enrolled in existing wholesale and retail DR programs were capable of providing [not, vert, similar]38,000 MW of potential peak load reductions in the United States. Participants in organized wholesale market DR programs, though, have historically overestimated their likely performance during declared curtailments events, but appear to be getting better as they and their agents gain experience. In places with less developed organized wholesale market DR programs, utilities are learning how to create more flexible DR resources by adapting legacy load management programs to fit into existing wholesale market constructs. Overall, the development of open and organized wholesale markets coupled with direct policy support by the Federal Energy Regulatory Commission has facilitated new entry by curtailment service providers, which has likely expanded the demand response industry and led to product and service innovation. JF - Energy (Oxford) AU - Cappers, Peter AU - Goldman, Charles AU - Kathan, David AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, United States pacappers@lbl.gov Y1 - 2010/04// PY - 2010 DA - Apr 2010 SP - 1526 EP - 1535 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 35 IS - 4 SN - 0360-5442, 0360-5442 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Policies KW - Direct reduction KW - Demand KW - Construction KW - Marketing KW - Markets KW - Empirical analysis KW - Utilities KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1671261717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%28Oxford%29&rft.atitle=Demand+response+in+U.S.+electricity+markets%3A+Empirical+evidence&rft.au=Cappers%2C+Peter%3BGoldman%2C+Charles%3BKathan%2C+David&rft.aulast=Cappers&rft.aufirst=Peter&rft.date=2010-04-01&rft.volume=35&rft.issue=4&rft.spage=1526&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&rft_id=info:doi/10.1016%2Fj.energy.2009.06.029 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2015-04-09 DO - http://dx.doi.org/10.1016/j.energy.2009.06.029 ER - TY - JOUR T1 - High-resolution simulation and characterization of density-driven flow in CO (sub 2) storage in saline aquifers AN - 1542647318; 2014-049514 AB - Simulations are routinely used to study the process of carbon dioxide (CO (sub 2) ) sequestration in saline aquifers. In this paper, we describe the modeling and simulation of the dissolution-diffusion-convection process based on a total velocity splitting formulation for a variable-density incompressible single-phase model. A second-order accurate sequential algorithm, implemented within a block-structured adaptive mesh refinement (AMR) framework, is used to perform high-resolution studies of the process. We study both the short-term and long-term behaviors of the process. It is found that the onset time of convection follows closely the prediction of linear stability analysis. In addition, the CO (sub 2) flux at the top boundary, which gives the rate at which CO (sub 2) gas dissolves into a negatively buoyant aqueous phase, will reach a stabilized state at the space and time scales we are interested in. This flux is found to be proportional to permeability, and independent of porosity and effective diffusivity, indicative of a convection-dominated flow. A 3D simulation further shows that the added degrees of freedom shorten the onset time and increase the magnitude of the stabilized CO (sub 2) flux by about 25%. Finally, our results are found to be comparable to results obtained from TOUGH2-MP. Abstract Copyright (2010) Elsevier, B.V. JF - Advances in Water Resources AU - Pau, George S H AU - Bell, John B AU - Pruess, Karsten AU - Almgren, Ann S AU - Lijewski, Michael J AU - Zhang, Keni Y1 - 2010/04// PY - 2010 DA - April 2010 SP - 443 EP - 455 PB - Elsevier, Oxford VL - 33 IS - 4 SN - 0309-1708, 0309-1708 KW - density KW - characterization KW - stability KW - gas storage KW - salinity KW - simulation KW - environmental analysis KW - ground water KW - velocity KW - algorithms KW - heterogeneity KW - diffusivity KW - high-resolution methods KW - diffusion KW - carbon sequestration KW - numerical models KW - three-dimensional models KW - solutes KW - fluid flow KW - porous materials KW - equations KW - convection KW - porosity KW - aquifers KW - fluctuations KW - viscosity KW - permeability KW - 21:Hydrogeology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1542647318?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=High-resolution+simulation+and+characterization+of+density-driven+flow+in+CO+%28sub+2%29+storage+in+saline+aquifers&rft.au=Pau%2C+George+S+H%3BBell%2C+John+B%3BPruess%2C+Karsten%3BAlmgren%2C+Ann+S%3BLijewski%2C+Michael+J%3BZhang%2C+Keni&rft.aulast=Pau&rft.aufirst=George+S&rft.date=2010-04-01&rft.volume=33&rft.issue=4&rft.spage=443&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2010.01.009 L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2014-01-01 N1 - Number of references - 28 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2014-07-04 N1 - SubjectsTermNotLitGenreText - algorithms; aquifers; carbon sequestration; characterization; convection; density; diffusion; diffusivity; environmental analysis; equations; fluctuations; fluid flow; gas storage; ground water; heterogeneity; high-resolution methods; numerical models; permeability; porosity; porous materials; salinity; simulation; solutes; stability; three-dimensional models; velocity; viscosity DO - http://dx.doi.org/10.1016/j.advwatres.2010.01.009 ER - TY - JOUR T1 - Reactive transport modeling to study changes in water chemistry induced by CO2 injection at the Frio-I Brine Pilot AN - 869566818; 13025139 AB - To demonstrate the potential for geologic storage of CO2 in saline aquifers, the Frio-I Brine Pilot was conducted, during which 1600tons of CO2 were injected into a high-permeability sandstone and the resulting subsurface plume of CO2 was monitored using a variety of hydrogeological, geophysical, and geochemical techniques. Fluid samples were obtained before CO2 injection for baseline geochemical characterization, during the CO2 injection to track its breakthrough at a nearby observation well, and after injection to investigate changes in fluid composition and potential leakage into an overlying zone. Following CO2 breakthrough at the observation well, brine samples showed sharp drops in pH, pronounced increases in HCO3 a and aqueous Fe, and significant shifts in the isotopic compositions of H2O and dissolved inorganic carbon. Based on a calibrated 1-D radial flow model, reactive transport modeling was performed for the Frio-I Brine Pilot. A simple kinetic model of Fe release from the solid to aqueous phase was developed, which can reproduce the observed increases in aqueous Fe concentration. Brine samples collected after half a year had lower Fe concentrations due to carbonate precipitation, and this trend can be also captured by our modeling. The paper provides a method for estimating potential mobile Fe inventory, and its bounding concentration in the storage formation from limited observation data. Long-term simulations show that the CO2 plume gradually spreads outward due to capillary forces, and the gas saturation gradually decreases due to its dissolution and precipitation of carbonates. The gas phase is predicted to disappear after 500years. Elevated aqueous CO2 concentrations remain for a longer time, but eventually decrease due to carbonate precipitation. For the Frio-I Brine Pilot, all injected CO2 could ultimately be sequestered as carbonate minerals. JF - Chemical Geology AU - Xu, Tianfu AU - Kharaka, Yousif K AU - Doughty, Christine AU - Freifeld, Barry M AU - Daley, Thomas M AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, United States Y1 - 2010/03/30/ PY - 2010 DA - 2010 Mar 30 SP - 153 EP - 164 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 271 IS - 3-4 SN - 0009-2541, 0009-2541 KW - Water Resources Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - CO2 sequestration KW - Frio Formation KW - Water chemistry KW - Iron release KW - Reactive transport modeling KW - Chemical composition KW - Dissolved inorganic carbon KW - Carbonates KW - Simulation KW - Groundwater Pollution KW - Carbonate minerals KW - Precipitation KW - Injection KW - Model Studies KW - Storage KW - Observation Wells KW - Baseline studies KW - Carbon dioxide KW - Carbon Dioxide KW - Brines KW - Modelling KW - SW 5010:Network design KW - O 3010:Geology and Geophysics KW - Q2 09182:Methods and instruments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/869566818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Reactive+transport+modeling+to+study+changes+in+water+chemistry+induced+by+CO2+injection+at+the+Frio-I+Brine+Pilot&rft.au=Xu%2C+Tianfu%3BKharaka%2C+Yousif+K%3BDoughty%2C+Christine%3BFreifeld%2C+Barry+M%3BDaley%2C+Thomas+M&rft.aulast=Xu&rft.aufirst=Tianfu&rft.date=2010-03-30&rft.volume=271&rft.issue=3-4&rft.spage=153&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2010.01.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2016-04-29 N1 - SubjectsTermNotLitGenreText - Baseline studies; Chemical composition; Dissolved inorganic carbon; Simulation; Carbonate minerals; Carbon dioxide; Water chemistry; Modelling; Brines; Storage; Observation Wells; Carbonates; Groundwater Pollution; Precipitation; Injection; Model Studies; Carbon Dioxide DO - http://dx.doi.org/10.1016/j.chemgeo.2010.01.006 ER - TY - CPAPER T1 - Genomic encyclopedia of fungi: Bioenergy prospective T2 - 10th European Conference on Fungal Genetics (ECFG 10) AN - 742799827; 5689807 JF - 10th European Conference on Fungal Genetics (ECFG 10) AU - Grigoriev, Igor Y1 - 2010/03/29/ PY - 2010 DA - 2010 Mar 29 KW - Fungi KW - Biofuels KW - Genomics KW - Encyclopaedias KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742799827?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=10th+European+Conference+on+Fungal+Genetics+%28ECFG+10%29&rft.atitle=Genomic+encyclopedia+of+fungi%3A+Bioenergy+prospective&rft.au=Grigoriev%2C+Igor&rft.aulast=Grigoriev&rft.aufirst=Igor&rft.date=2010-03-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=10th+European+Conference+on+Fungal+Genetics+%28ECFG+10%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ecfg10.info/images/ECFG10Abstract_Book-250310.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - CPAPER T1 - Omics Based Approaches to Predict Cancer Therapy T2 - 2010 Keystone Symposia: New Paradigms in Cancer Therapeutics (Z1) AN - 742801969; 5674482 JF - 2010 Keystone Symposia: New Paradigms in Cancer Therapeutics (Z1) AU - Gray, Joe Y1 - 2010/03/23/ PY - 2010 DA - 2010 Mar 23 KW - Cancer KW - Therapy KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742801969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Keystone+Symposia%3A+New+Paradigms+in+Cancer+Therapeutics+%28Z1%29&rft.atitle=Omics+Based+Approaches+to+Predict+Cancer+Therapy&rft.au=Gray%2C+Joe&rft.aulast=Gray&rft.aufirst=Joe&rft.date=2010-03-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Keystone+Symposia%3A+New+Paradigms+in+Cancer+Therapeutics+%28Z1%29&rft.issn=&rft_id=info:doi/ L2 - http://www.keystonesymposia.org/Meetings/viewMeetings.cfm?MeetingID=10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - CPAPER T1 - S-layer Assembly T2 - 3rd Annual PepCon 2010 (PepCon 2010) AN - 742842680; 5708503 JF - 3rd Annual PepCon 2010 (PepCon 2010) AU - Shin, Seong-Ho Y1 - 2010/03/21/ PY - 2010 DA - 2010 Mar 21 KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742842680?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=3rd+Annual+PepCon+2010+%28PepCon+2010%29&rft.atitle=S-layer+Assembly&rft.au=Shin%2C+Seong-Ho&rft.aulast=Shin&rft.aufirst=Seong-Ho&rft.date=2010-03-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=3rd+Annual+PepCon+2010+%28PepCon+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.bitlifesciences.com/pepcon2010/Program.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - CPAPER T1 - Development of a Tagless Strategy for the Identification and Characterization of Native Protein Complexes T2 - 2010 Meeting of the Association of Biomolecular Resource Facilities (ABRF 2010) AN - 742819259; 5705540 JF - 2010 Meeting of the Association of Biomolecular Resource Facilities (ABRF 2010) AU - Dong, M Y1 - 2010/03/20/ PY - 2010 DA - 2010 Mar 20 KW - Proteins KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742819259?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Meeting+of+the+Association+of+Biomolecular+Resource+Facilities+%28ABRF+2010%29&rft.atitle=Development+of+a+Tagless+Strategy+for+the+Identification+and+Characterization+of+Native+Protein+Complexes&rft.au=Dong%2C+M&rft.aulast=Dong&rft.aufirst=M&rft.date=2010-03-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Meeting+of+the+Association+of+Biomolecular+Resource+Facilities+%28ABRF+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.abrf2010.org/docs/conference/ABRF2010_Program_FINAL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - JOUR T1 - Extraction and comparison of gene expression patterns from 2D RNA in situ hybridization images AN - 746084853; 13115280 AB - Motivation: Recent advancements in high-throughput imaging have created new large datasets with tens of thousands of gene expression images. Methods for capturing these spatial and/or temporal expression patterns include in situ hybridization or fluorescent reporter constructs or tags, and results are still frequently assessed by subjective qualitative comparisons. In order to deal with available large datasets, fully automated analysis methods must be developed to properly normalize and model spatial expression patterns.Results: We have developed image segmentation and registration methods to identify and extract spatial gene expression patterns from RNA in situ hybridization experiments of Drosophila embryos. These methods allow us to normalize and extract expression information for 78 621 images from 3724 genes across six time stages. The similarity between gene expression patterns is computed using four scoring metrics: mean squared error, Haar wavelet distance, mutual information and spatial mutual information (SMI). We additionally propose a strategy to calculate the significance of the similarity between two expression images, by generating surrogate datasets with similar spatial expression patterns using a Monte Carlo swap sampler. On data from an early development time stage, we show that SMI provides the most biologically relevant metric of comparison, and that our significance testing generalizes metrics to achieve similar performance. We exemplify the application of spatial metrics on the well-known Drosophila segmentation network.Availability: A Java webstart application to register and compare patterns, as well as all source code, are available from: http://tools.genome.duke.edu/generegulation/image_analysis/insitu[ b old]Contact: uwe.ohler sub(u)ke.eduSupplementary information: Supplementary data are available at Bioinformatics online. JF - Bioinformatics AU - Mace, Daniel L AU - Varnado, Nicole AU - Zhang, Weiping AU - Frise, Erwin AU - Ohler, Uwe AD - super(1) Computational Biology and Bioinformatics Graduate Program, super(2) Institute for Genome Sciences & Policy, Duke University, Durham, NC 27708 and super(3) Department of Genome and Computational Biology, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2010/03/15/ PY - 2010 DA - 2010 Mar 15 SP - 761 EP - 769 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 26 IS - 6 SN - 1367-4803, 1367-4803 KW - Entomology Abstracts; Biochemistry Abstracts 2: Nucleic Acids; Biotechnology and Bioengineering Abstracts KW - Data processing KW - Image processing KW - Developmental stages KW - spatial discrimination KW - Samplers KW - imaging KW - Models KW - Gene expression KW - Computer programs KW - RNA KW - Information processing KW - Segmentation KW - Embryos KW - Bioinformatics KW - Drosophila KW - Z 05300:General KW - N 14810:Methods KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746084853?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Extraction+and+comparison+of+gene+expression+patterns+from+2D+RNA+in+situ+hybridization+images&rft.au=Mace%2C+Daniel+L%3BVarnado%2C+Nicole%3BZhang%2C+Weiping%3BFrise%2C+Erwin%3BOhler%2C+Uwe&rft.aulast=Mace&rft.aufirst=Daniel&rft.date=2010-03-15&rft.volume=26&rft.issue=6&rft.spage=761&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/10.1093%2Fbioinformatics%2Fbtp658 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Data processing; Developmental stages; Image processing; spatial discrimination; imaging; Samplers; Models; Gene expression; Computer programs; RNA; Information processing; Segmentation; Embryos; Bioinformatics; Drosophila DO - http://dx.doi.org/10.1093/bioinformatics/btp658 ER - TY - JOUR T1 - Templated display of biomolecules and inorganic nanoparticles by metal ion-induced peptide nanofibers. AN - 733545561; 20177599 AB - We functionalized peptide nanofibers to provide a nano-scale template for the display of biomolecules and inorganic nanoparticles using metal ion coordination. Nanofibers assembled only in the presence of certain divalent metal ions, and could be readily dissolved by a metal-chelating reagent, EDTA. JF - Chemical communications (Cambridge, England) AU - Lee, Byoung-Chul AU - Zuckermann, Ronald N AD - Biological Nanostructures Facility, The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720, USA. Y1 - 2010/03/14/ PY - 2010 DA - 2010 Mar 14 SP - 1634 EP - 1636 VL - 46 IS - 10 KW - Metals KW - 0 KW - Organic Chemicals KW - Peptides KW - Index Medicus KW - Organic Chemicals -- chemistry KW - Kinetics KW - Amino Acid Sequence KW - Surface Properties KW - Nanofibers -- chemistry KW - Peptides -- chemistry KW - Metals -- chemistry KW - Nanoparticles -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733545561?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+communications+%28Cambridge%2C+England%29&rft.atitle=Templated+display+of+biomolecules+and+inorganic+nanoparticles+by+metal+ion-induced+peptide+nanofibers.&rft.au=Lee%2C+Byoung-Chul%3BZuckermann%2C+Ronald+N&rft.aulast=Lee&rft.aufirst=Byoung-Chul&rft.date=2010-03-14&rft.volume=46&rft.issue=10&rft.spage=1634&rft.isbn=&rft.btitle=&rft.title=Chemical+communications+%28Cambridge%2C+England%29&rft.issn=1364-548X&rft_id=info:doi/10.1039%2Fb925395e LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-05-20 N1 - Date created - 2010-02-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1039/b925395e ER - TY - CPAPER T1 - Green Flash: Exascale Computing on a Petascale Power Budget T2 - 11th LCI International Conference on High-Performance Clustered Computing (LCI 2010) AN - 742821173; 5706844 JF - 11th LCI International Conference on High-Performance Clustered Computing (LCI 2010) AU - Shalf, John AU - Donofrio, David Y1 - 2010/03/09/ PY - 2010 DA - 2010 Mar 09 KW - Budgets KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742821173?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=11th+LCI+International+Conference+on+High-Performance+Clustered+Computing+%28LCI+2010%29&rft.atitle=Green+Flash%3A+Exascale+Computing+on+a+Petascale+Power+Budget&rft.au=Shalf%2C+John%3BDonofrio%2C+David&rft.aulast=Shalf&rft.aufirst=John&rft.date=2010-03-09&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=11th+LCI+International+Conference+on+High-Performance+Clustered+Computing+%28LCI+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.linuxclustersinstitute.org/conferences/program.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - CPAPER T1 - Evidence for Quantitative Transcription Networks T2 - 2010 Keystone Symposia Conference: Biomolecular Interaction Networks: Function and Disease (C1) AN - 42309878; 5640490 JF - 2010 Keystone Symposia Conference: Biomolecular Interaction Networks: Function and Disease (C1) AU - Biggin, Mark Y1 - 2010/03/07/ PY - 2010 DA - 2010 Mar 07 KW - Transcription KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42309878?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Keystone+Symposia+Conference%3A+Biomolecular+Interaction+Networks%3A+Function+and+Disease+%28C1%29&rft.atitle=Evidence+for+Quantitative+Transcription+Networks&rft.au=Biggin%2C+Mark&rft.aulast=Biggin&rft.aufirst=Mark&rft.date=2010-03-07&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Keystone+Symposia+Conference%3A+Biomolecular+Interaction+Networks%3A+Function+and+Disease+%28C1%29&rft.issn=&rft_id=info:doi/ L2 - http://www.keystonesymposia.org/Meetings/viewMeetings.cfm?MeetingID=10 68&subTab=program LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Microbial production of fatty acid-derived fuels and chemicals in Escherichia coli T2 - 2010 Annual Meeting of Institute of Biological Engineering AN - 42345876; 5657259 JF - 2010 Annual Meeting of Institute of Biological Engineering AU - Steen, Eric AU - Kang, Yisheng AU - Ouellet, Mario AU - Burd, Helcio AU - Haliburton, John AU - Lee, Michael AU - Redding, Alyssa AU - Szmidt, Heather AU - Gin, Jennifer AU - Hillson, Nathan AU - Beller, Harry AU - Keasling, Jay Y1 - 2010/03/04/ PY - 2010 DA - 2010 Mar 04 KW - Chemicals KW - Fuels KW - Escherichia coli KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42345876?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Annual+Meeting+of+Institute+of+Biological+Engineering&rft.atitle=Microbial+production+of+fatty+acid-derived+fuels+and+chemicals+in+Escherichia+coli&rft.au=Steen%2C+Eric%3BKang%2C+Yisheng%3BOuellet%2C+Mario%3BBurd%2C+Helcio%3BHaliburton%2C+John%3BLee%2C+Michael%3BRedding%2C+Alyssa%3BSzmidt%2C+Heather%3BGin%2C+Jennifer%3BHillson%2C+Nathan%3BBeller%2C+Harry%3BKeasling%2C+Jay&rft.aulast=Steen&rft.aufirst=Eric&rft.date=2010-03-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Annual+Meeting+of+Institute+of+Biological+Engineering&rft.issn=&rft_id=info:doi/ L2 - http://www.ibe.org/_resources/pdfs/calendar/2010_Annual_Conference_Pre liminary_Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Optimizing Cr(VI) and Tc(VII) Remediation through Nanoscale Biomineral Engineering AN - 754545242; 13268936 AB - The influence of Fe(III) starting material on the ability of magnetically recoverable biogenic magnetites produced by Geobacter sulfurreducens to retain metal oxyanion contaminants has been investigated. The reduction/removal of aqueous Cr(VI) was used to probe the reactivity of the biomagnetites. Nanomagnetites produced by the bacterial reduction of schwertmannite powder were more efficient at reducing Cr(VI) than either ferrihydrite 'gel'-derived biomagnetite or commercial nanoscale Fe3O4. Examination of post-exposure magnetite surfaces indicated both Cr(III) and Cr(VI) were present. X-ray magnetic circular dichroism (XMCD) studies at the Fe L2,3-edge showed that the amount of Fe(III) 'gained' by Cr(VI) reduction could not be entirely accounted for by 'lost' Fe(II). Cr L2,3-edge XMCD spectra found Cr(III) replaced 14%-20% of octahedral Fe in both biogenic magnetites, producing a layer resembling CrFe2O4. However, schwertmannite-derived biomagnetite was associated with approximately twice as much Cr as ferrihydrite-derived magnetite. Column studies using a *g-camera to image a 99mTc(VII) radiotracer were performed to visualize the relative performances of biogenic magnetites at removing aqueous metal oxyanion contaminants. Again, schwertmannite-derived biomagnetite proved capable of retaining more (20%) 99mTc(VII) than ferrihydrite-derived biomagnetite, confirming that the production of biomagnetite can be fine-tuned for efficient environmental remediation through careful selection of the Fe(III) mineral substrate supplied to Fe(III)-reducing bacteria. JF - Environmental Science & Technology AU - Cutting, Richard S AU - Coker, Victoria S AU - Telling, Neil D AU - Kimber, Richard L AU - Pearce, Carolyn I AU - Ellis, Beverly L AU - Lawson, Richard S AU - van der Laan, Gerrit AU - Pattrick, Richard A D AU - Vaughan, David J AU - Arenholz, Elke AU - Lloyd, Jonathan R AD - Williamson Research Centre for Molecular Environmental Science, and School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester M13 9PL, U.K., Department of Nuclear Medicine, Manchester Royal Infirmary, Oxford Road, Manchester M13 9WL, U.K., Magnetic Spectroscopy Group, Diamond Light Source, Didcot, Oxfordshire OX11 0DE, U.K., and Advanced Light Source, Lawrence Berkeley National Laboratory,Berkeley, California Y1 - 2010/03/02/ PY - 2010 DA - 2010 Mar 02 SP - 2577 EP - 2584 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 44 IS - 7 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Environment Abstracts KW - Metals KW - Powder KW - Bioremediation KW - Chromium KW - Probes KW - Geobacter sulfurreducens KW - Ionizing radiation KW - C.D. KW - Contaminants KW - Minerals KW - magnetite KW - A 01410:Mineral Microbiology KW - P 6000:TOXICOLOGY AND HEALTH KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754545242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Optimizing+Cr%28VI%29+and+Tc%28VII%29+Remediation+through+Nanoscale+Biomineral+Engineering&rft.au=Cutting%2C+Richard+S%3BCoker%2C+Victoria+S%3BTelling%2C+Neil+D%3BKimber%2C+Richard+L%3BPearce%2C+Carolyn+I%3BEllis%2C+Beverly+L%3BLawson%2C+Richard+S%3Bvan+der+Laan%2C+Gerrit%3BPattrick%2C+Richard+A+D%3BVaughan%2C+David+J%3BArenholz%2C+Elke%3BLloyd%2C+Jonathan+R&rft.aulast=Cutting&rft.aufirst=Richard&rft.date=2010-03-02&rft.volume=44&rft.issue=7&rft.spage=2577&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes902119u L2 - http://pubs.acs.org/doi/abs/10.1021/es902119u LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2013-09-09 N1 - SubjectsTermNotLitGenreText - Powder; Metals; Chromium; C.D.; Ionizing radiation; Probes; Contaminants; Minerals; magnetite; Bioremediation; Geobacter sulfurreducens DO - http://dx.doi.org/10.1021/es902119u ER - TY - JOUR T1 - Dynamics of CO (sub 2) fluxes and concentrations during a shallow subsurface CO (sub 2) release AN - 916840609; 2012-016341 AB - A field facility located in Bozeman, Montana provides the opportunity to test methods to detect, locate, and quantify potential CO (sub 2) leakage from geologic storage sites. From 9 July to 7 August 2008, 0.3 t CO (sub 2) day (super -1) were injected from a 100-m long, approximately 2.5-m deep horizontal well. Repeated measurements of soil CO (sub 2) fluxes on a grid characterized the spatio-temporal evolution of the surface leakage signal and quantified the surface leakage rate. Infrared CO (sub 2) concentration sensors installed in the soil at 30 cm depth at 0-10 m from the well and at 4 cm above the ground at 0 and 5 m from the well recorded surface breakthrough of CO (sub 2) leakage and migration of CO (sub 2) leakage through the soil. Temporal variations in CO (sub 2) concentrations were correlated with atmospheric and soil temperature, wind speed, atmospheric pressure, rainfall, and CO (sub 2) injection rate. Copyright 2009 Springer-Verlag JF - Environmental Earth Sciences AU - Lewicki, Jennifer L AU - Hilley, George E AU - Dobeck, Laura M AU - Spangler, Lee H Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 285 EP - 297 PB - Springer, Berlin VL - 60 IS - 2 SN - 1866-6280, 1866-6280 KW - United States KW - soils KW - concentration KW - carbon sequestration KW - time series analysis KW - Gallatin County Montana KW - statistical analysis KW - injection KW - pollution KW - mechanism KW - atmosphere KW - rates KW - seepage KW - Montana KW - measurement KW - carbon dioxide KW - Bozeman Montana KW - shallow depth KW - dynamics KW - ZERT KW - greenhouse gases KW - diurnal variations KW - discharge KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916840609?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Dynamics+of+CO+%28sub+2%29+fluxes+and+concentrations+during+a+shallow+subsurface+CO+%28sub+2%29+release&rft.au=Lewicki%2C+Jennifer+L%3BHilley%2C+George+E%3BDobeck%2C+Laura+M%3BSpangler%2C+Lee+H&rft.aulast=Lewicki&rft.aufirst=Jennifer&rft.date=2010-03-01&rft.volume=60&rft.issue=2&rft.spage=285&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-009-0396-7 L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 21 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - atmosphere; Bozeman Montana; carbon dioxide; carbon sequestration; concentration; discharge; diurnal variations; dynamics; Gallatin County Montana; greenhouse gases; injection; measurement; mechanism; Montana; pollution; rates; seepage; shallow depth; soils; statistical analysis; time series analysis; United States; ZERT DO - http://dx.doi.org/10.1007/s12665-009-0396-7 ER - TY - JOUR T1 - Changes in the chemistry of shallow groundwater related to the 2008 injection of CO (sub 2) at the ZERT field site, Bozeman, Montana AN - 916840604; 2012-016340 AB - Approximately 300 kg/day of food-grade CO (sub 2) was injected through a perforated pipe placed horizontally 2-2.3 m deep during July 9-August 7, 2008 at the MSU-ZERT field test to evaluate atmospheric and near-surface monitoring and detection techniques applicable to the subsurface storage and potential leakage of CO (sub 2) . As part of this multidisciplinary research project, 80 samples of water were collected from 10 shallow monitoring wells (1.5 or 3.0 m deep) installed 1-6 m from the injection pipe, at the southwestern end of the slotted section (zone VI), and from two distant monitoring wells. The samples were collected before, during, and following CO (sub 2) injection. The main objective of study was to investigate changes in the concentrations of major, minor, and trace inorganic and organic compounds during and following CO (sub 2) injection. The ultimate goals were (1) to better understand the potential of groundwater quality impacts related to CO (sub 2) leakage from deep storage operations, (2) to develop geochemical tools that could provide early detection of CO (sub 2) intrusion into underground sources of drinking water (USDW), and (3) to test the predictive capabilities of geochemical codes against field data. Field determinations showed rapid and systematic changes in pH (7.0-5.6), alkalinity (400-1,330 mg/l as HCO (sub 3) ), and electrical conductance (600-1,800 mu S/cm) following CO (sub 2) injection in samples collected from the 1.5 m-deep wells. Laboratory results show major increases in the concentrations of Ca (90-240 mg/l), Mg (25-70 mg/l), Fe (5-1,200 ppb), and Mn (5-1,400 ppb) following CO (sub 2) injection. These chemical changes could provide early detection of CO (sub 2) leakage into shallow groundwater from deep storage operations. Dissolution of observed carbonate minerals and desorption-ion exchange resulting from lowered pH values following CO (sub 2) injection are the likely geochemical processes responsible for the observed increases in the concentrations of solutes; concentrations generally decreased temporarily following four significant precipitation events. The DOC values obtained are 5+ or -2 mg/l, and the variations do not correlate with CO (sub 2) injection. CO (sub 2) injection, however, is responsible for detection of BTEX (e.g. benzene, 0-0.8 ppb), mobilization of metals, the lowered pH values, and increases in the concentrations of other solutes in groundwater. The trace metal and BTEX concentrations are all significantly below the maximum contaminant levels (MCLs). Sequential leaching of core samples is being carried out to investigate the source of metals and other solutes. Copyright 2010 Springer-Verlag and 2009 The Author(s) JF - Environmental Earth Sciences AU - Kharaka, Yousif K AU - Thordsen, James J AU - Kakouros, Evangelos AU - Ambats, Gil AU - Herkelrath, William N AU - Beers, Sarah R AU - Birkholzer, Jens T AU - Apps, John A AU - Spycher, Nicolas F AU - Zheng, Liange AU - Trautz, Robert C AU - Rauch, Henry W AU - Gullickson, Kadie S AU - Spangler, Lee H Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 273 EP - 284 PB - Springer, Berlin VL - 60 IS - 2 SN - 1866-6280, 1866-6280 KW - United States KW - water quality KW - Gallatin Valley KW - Gallatin County Montana KW - observation wells KW - drinking water KW - carbon dioxide KW - major elements KW - carbon KW - leaky aquifers KW - ZERT KW - trace elements KW - organic carbon KW - chemical composition KW - concentration KW - experimental studies KW - minor elements KW - injection KW - solutes KW - pollution KW - BTEX KW - Montana KW - Bozeman Montana KW - aquifers KW - organic compounds KW - detection KW - hydrocarbons KW - shallow aquifers KW - leaching KW - aromatic hydrocarbons KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916840604?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Changes+in+the+chemistry+of+shallow+groundwater+related+to+the+2008+injection+of+CO+%28sub+2%29+at+the+ZERT+field+site%2C+Bozeman%2C+Montana&rft.au=Kharaka%2C+Yousif+K%3BThordsen%2C+James+J%3BKakouros%2C+Evangelos%3BAmbats%2C+Gil%3BHerkelrath%2C+William+N%3BBeers%2C+Sarah+R%3BBirkholzer%2C+Jens+T%3BApps%2C+John+A%3BSpycher%2C+Nicolas+F%3BZheng%2C+Liange%3BTrautz%2C+Robert+C%3BRauch%2C+Henry+W%3BGullickson%2C+Kadie+S%3BSpangler%2C+Lee+H&rft.aulast=Kharaka&rft.aufirst=Yousif&rft.date=2010-03-01&rft.volume=60&rft.issue=2&rft.spage=273&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-009-0401-1 L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; aromatic hydrocarbons; Bozeman Montana; BTEX; carbon; carbon dioxide; chemical composition; concentration; detection; drinking water; experimental studies; Gallatin County Montana; Gallatin Valley; hydrocarbons; injection; leaching; leaky aquifers; major elements; minor elements; Montana; observation wells; organic carbon; organic compounds; pollution; shallow aquifers; solutes; trace elements; United States; water quality; ZERT DO - http://dx.doi.org/10.1007/s12665-009-0401-1 ER - TY - JOUR T1 - Time-window-based filtering method for near-surface detection of leakage from geologic carbon sequestration sites AN - 916839305; 2012-016331 AB - We use process-based modeling techniques to characterize the temporal features of natural biologically controlled surface CO (sub 2) fluxes and the relationships between the assimilation and respiration fluxes. Based on these analyses, we develop a signal-enhancing technique that combines a novel time-window splitting scheme, a simple median filtering, and an appropriate scaling method to detect potential signals of leakage of CO (sub 2) from geologic carbon sequestration sites from within datasets of net near-surface CO (sub 2) flux measurements. The technique can be directly applied to measured data and does not require subjective gap filling or data-smoothing preprocessing. Preliminary application of the new method to flux measurements from a CO (sub 2) shallow-release experiment appears promising for detecting a leakage signal relative to background variability. The leakage index of + or -2 was found to span the range of biological variability for various ecosystems as determined by observing CO (sub 2) flux data at various control sites for a number of years. Copyright 2010 Springer-Verlag JF - Environmental Earth Sciences AU - Pan, Lehua AU - Lewicki, Jennifer L AU - Oldenburg, Curtis M AU - Fischer, Marc L Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 359 EP - 369 PB - Springer, Berlin VL - 60 IS - 2 SN - 1866-6280, 1866-6280 KW - soils KW - scale factor KW - respiration KW - photosynthesis KW - Plantae KW - experimental studies KW - carbon sequestration KW - statistical analysis KW - photochemistry KW - injection KW - data KW - mathematical models KW - variations KW - measurement KW - carbon dioxide KW - models KW - detection KW - leakage anomalies KW - grasslands KW - interpretation KW - filters KW - covariance analysis KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916839305?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=Time-window-based+filtering+method+for+near-surface+detection+of+leakage+from+geologic+carbon+sequestration+sites&rft.au=Pan%2C+Lehua%3BLewicki%2C+Jennifer+L%3BOldenburg%2C+Curtis+M%3BFischer%2C+Marc+L&rft.aulast=Pan&rft.aufirst=Lehua&rft.date=2010-03-01&rft.volume=60&rft.issue=2&rft.spage=359&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-009-0436-3 L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; covariance analysis; data; detection; experimental studies; filters; grasslands; injection; interpretation; leakage anomalies; mathematical models; measurement; models; photochemistry; photosynthesis; Plantae; respiration; scale factor; soils; statistical analysis; variations DO - http://dx.doi.org/10.1007/s12665-009-0436-3 ER - TY - JOUR T1 - A shallow subsurface controlled release facility in Bozeman, Montana, USA, for testing near surface CO (sub 2) detection techniques and transport models AN - 916838718; 2012-016339 AB - A controlled field pilot has been developed in Bozeman, Montana, USA, to study near surface CO (sub 2) transport and detection technologies. A slotted horizontal well divided into six zones was installed in the shallow subsurface. The scale and CO (sub 2) release rates were chosen to be relevant to developing monitoring strategies for geological carbon storage. The field site was characterized before injection, and CO (sub 2) transport and concentrations in saturated soil and the vadose zone were modeled. Controlled releases of CO (sub 2) from the horizontal well were performed in the summers of 2007 and 2008, and collaborators from six national labs, three universities, and the U.S. Geological Survey investigated movement of CO (sub 2) through the soil, water, plants, and air with a wide range of near surface detection techniques. An overview of these results will be presented. Copyright 2010 Springer-Verlag and 2009 The Author(s) JF - Environmental Earth Sciences AU - Spangler, Lee H AU - Dobeck, Laura M AU - Repasky, Kevin S AU - Nehrir, Amin R AU - Humphries, Seth D AU - Barr, Jamie L AU - Keith, Charlie J AU - Shaw, Joseph A AU - Rouse, Joshua H AU - Cunningham, Alfred B AU - Benson, Sally M AU - Oldenburg, Curtis M AU - Lewicki, Jennifer L AU - Wells, Arthur W AU - Diehl, J Rodney AU - Strazisar, Brian R AU - Fessenden, Julianna E AU - Rahn, Thom A AU - Amonette, James E AU - Barr, Jon L AU - Pickles, William L AU - Jacobson, James D AU - Silver, Eli A AU - Male, Erin J AU - Rauch, Henry W AU - Gullickson, Kadie S AU - Trautz, Robert C AU - Kharaka, Yousif AU - Birkholzer, Jens T AU - Wielopolski, Lucian Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 227 EP - 239 PB - Springer, Berlin VL - 60 IS - 2 SN - 1866-6280, 1866-6280 KW - United States KW - laser methods KW - contaminant plumes KW - Gallatin County Montana KW - unsaturated zone KW - observation wells KW - preferential flow KW - Zero Emission Research and Technology Center KW - simulation KW - ground water KW - carbon dioxide KW - transport KW - tracers KW - ZERT KW - meteorology KW - water KW - soils KW - concentration KW - injection KW - pollution KW - research KW - Montana KW - Bozeman Montana KW - aquifers KW - models KW - detection KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916838718?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Earth+Sciences&rft.atitle=A+shallow+subsurface+controlled+release+facility+in+Bozeman%2C+Montana%2C+USA%2C+for+testing+near+surface+CO+%28sub+2%29+detection+techniques+and+transport+models&rft.au=Spangler%2C+Lee+H%3BDobeck%2C+Laura+M%3BRepasky%2C+Kevin+S%3BNehrir%2C+Amin+R%3BHumphries%2C+Seth+D%3BBarr%2C+Jamie+L%3BKeith%2C+Charlie+J%3BShaw%2C+Joseph+A%3BRouse%2C+Joshua+H%3BCunningham%2C+Alfred+B%3BBenson%2C+Sally+M%3BOldenburg%2C+Curtis+M%3BLewicki%2C+Jennifer+L%3BWells%2C+Arthur+W%3BDiehl%2C+J+Rodney%3BStrazisar%2C+Brian+R%3BFessenden%2C+Julianna+E%3BRahn%2C+Thom+A%3BAmonette%2C+James+E%3BBarr%2C+Jon+L%3BPickles%2C+William+L%3BJacobson%2C+James+D%3BSilver%2C+Eli+A%3BMale%2C+Erin+J%3BRauch%2C+Henry+W%3BGullickson%2C+Kadie+S%3BTrautz%2C+Robert+C%3BKharaka%2C+Yousif%3BBirkholzer%2C+Jens+T%3BWielopolski%2C+Lucian&rft.aulast=Spangler&rft.aufirst=Lee&rft.date=2010-03-01&rft.volume=60&rft.issue=2&rft.spage=227&rft.isbn=&rft.btitle=&rft.title=Environmental+Earth+Sciences&rft.issn=18666280&rft_id=info:doi/10.1007%2Fs12665-009-0400-2 L2 - http://www.springerlink.com/content/1866-6280 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2012-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; Bozeman Montana; carbon dioxide; concentration; contaminant plumes; detection; Gallatin County Montana; ground water; injection; laser methods; meteorology; models; Montana; observation wells; pollution; preferential flow; research; simulation; soils; tracers; transport; United States; unsaturated zone; water; Zero Emission Research and Technology Center; ZERT DO - http://dx.doi.org/10.1007/s12665-009-0400-2 ER - TY - JOUR T1 - Benzene-derived N 2-(4-hydroxyphenyl)-deoxyguanosine adduct: UvrABC incision and its conformation in DNA AN - 839632081; 13020586 AB - Benzene, a ubiquitous human carcinogen, forms DNA adducts through its metabolites such as p-benzoquinone (p-BQ) and hydroquinone (HQ). N 2-(4-Hydroxyphenyl)-2a super(2)-deoxyguanosine (N 2-4-HOPh-dG) is the principal adduct identified in vivo by 32P-postlabeling in cells or animals treated with p-BQ or HQ. To study its effect on repair specificity and replication fidelity, we recently synthesized defined oligonucleotides containing a site-specific adduct using phosphoramidite chemistry. We here report the repair of this adduct by Escherichia coli UvrABC complex, which performs the initial damage recognition and incision steps in the nucleotide excision repair (NER) pathway. We first showed that the p-BQ-treated plasmid was efficiently cleaved by the complex, indicating the formation of DNA lesions that are substrates for NER. Using a 40-mer substrate, we found that UvrABC incises the DNA strand containing N 2-4-HOPh-dG in a dose- and time-dependent manner. The specificity of such repair was also compared with that of DNA glycosylases and damage-specific endonucleases of E. coli, both of which were found to have no detectable activity toward N 2-4-HOPh-dG. To understand why this adduct is specifically recognized and processed by UvrABC, molecular modeling studies were performed. Analysis of molecular dynamics trajectories showed that stable G:C-like hydrogen bonding patterns of all three Watson-Crick hydrogen bonds are present within the N 2-4-HOPh-G:C base pair, with the hydroxyphenyl ring at an almost planar position. In addition, N 2-4-HOPh-dG has a tendency to form more stable stacking interactions than a normal G in B-type DNA. These conformational properties may be critical in differential recognition of this adduct by specific repair enzymes. JF - Toxicology Letters AU - Rodriguez, Ben AU - Yang, Yanu AU - Guliaev, Anton B AU - Chenna, Ahmed AU - Hang, Bo AD - Department of Cancer and DNA Damage Responses, Life Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, United States Y1 - 2010/03/01/ PY - 2010 DA - 2010 Mar 01 SP - 26 EP - 32 PB - Elsevier Science, Elsevier House, Brookvale Plaza East Park Shannon, Co. Clare Ireland VL - 193 IS - 1 SN - 0378-4274, 0378-4274 KW - Biochemistry Abstracts 2: Nucleic Acids; Toxicology Abstracts KW - HQ KW - p-BQ KW - N 2-4-HOPh-dG KW - AP KW - UvrABC KW - NER KW - BER KW - Exo III KW - Endo IV KW - APE1 KW - MD KW - Benzene KW - Hydroquinone KW - p-Benzoquinone KW - DNA adduct KW - Nucleotide excision repair KW - Adduct conformation KW - Molecular modeling KW - DNA adducts KW - Molecular modelling KW - Replication KW - Stacking KW - DNA glycosylase KW - Enzymes KW - Metabolites KW - Carcinogens KW - Plasmids KW - Oligonucleotides KW - Fidelity KW - Hydrogen bonding KW - Escherichia coli KW - Endonuclease KW - Conformation KW - Base pairs KW - N 14820:DNA Metabolism & Structure KW - X 24350:Industrial Chemicals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/839632081?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Toxicology+Letters&rft.atitle=Benzene-derived+N+2-%284-hydroxyphenyl%29-deoxyguanosine+adduct%3A+UvrABC+incision+and+its+conformation+in+DNA&rft.au=Rodriguez%2C+Ben%3BYang%2C+Yanu%3BGuliaev%2C+Anton+B%3BChenna%2C+Ahmed%3BHang%2C+Bo&rft.aulast=Rodriguez&rft.aufirst=Ben&rft.date=2010-03-01&rft.volume=193&rft.issue=1&rft.spage=26&rft.isbn=&rft.btitle=&rft.title=Toxicology+Letters&rft.issn=03784274&rft_id=info:doi/10.1016%2Fj.toxlet.2009.12.005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Molecular modelling; DNA adducts; Stacking; Replication; DNA glycosylase; Hydroquinone; Enzymes; Metabolites; Carcinogens; Plasmids; Oligonucleotides; Benzene; Fidelity; Nucleotide excision repair; Hydrogen bonding; Endonuclease; Base pairs; Conformation; Escherichia coli DO - http://dx.doi.org/10.1016/j.toxlet.2009.12.005 ER - TY - JOUR T1 - Imaging CSEM data in the presence of electrical anisotropy AN - 753845909; 2010-074995 AB - Formation anisotropy should be incorporated into the analysis of controlled-source electromagnetic (CSEM) data because failure to do so can produce serious artifacts in the resulting resistivity images for certain data configurations of interest. This finding is demonstrated in model and case studies. Sensitivity to horizontal resistivity will be strongest in the broadside electric field data where detectors are offset from the tow line. Sensitivity to vertical resistivity is strongest for overflight data where the transmitting antenna passes directly over the detecting antenna. Consequently, consistent treatment of overflight and broadside electric field measurements requires an anisotropic modeling assumption. To produce a consistent resistivity model for such data, we develop and use a 3D CSEM imaging algorithm that treats transverse anisotropy. The algorithm is based on nonlinear conjugate gradients and full wave-equation modeling. It exploits parallel computing systems to effectively treat 3D imaging problems and CSEM data volumes of industrial size. We use it to demonstrate the anisotropic imaging process on model and field data sets from the North Sea and offshore Brazil. We also verify that isotropic imaging of overflight data alone produces an image generally consistent with vertical resistivity. However, superior data fits are obtained when the same overflight data are analyzed assuming an anisotropic resistivity model. JF - Geophysics AU - Newman, Gregory A AU - Commer, Michael AU - Carazzone, James J Y1 - 2010/03// PY - 2010 DA - March 2010 SP - F51 EP - F61 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 75 IS - 2 SN - 0016-8033, 0016-8033 KW - petroleum exploration KW - technology KW - geophysical surveys KW - three-dimensional models KW - offshore KW - geophysical methods KW - petroleum KW - resistivity KW - magnetic field KW - reservoir rocks KW - models KW - South America KW - Brazil KW - electromagnetic methods KW - surveys KW - algorithms KW - North Sea KW - North Atlantic KW - Atlantic Ocean KW - anisotropy KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753845909?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Imaging+CSEM+data+in+the+presence+of+electrical+anisotropy&rft.au=Newman%2C+Gregory+A%3BCommer%2C+Michael%3BCarazzone%2C+James+J&rft.aulast=Newman&rft.aufirst=Gregory&rft.date=2010-03-01&rft.volume=75&rft.issue=2&rft.spage=F51&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3295883 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 31 N1 - PubXState - OK N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-05-16 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - algorithms; anisotropy; Atlantic Ocean; Brazil; electromagnetic methods; geophysical methods; geophysical surveys; magnetic field; models; North Atlantic; North Sea; offshore; petroleum; petroleum exploration; reservoir rocks; resistivity; South America; surveys; technology; three-dimensional models DO - http://dx.doi.org/10.1190/1.3295883 ER - TY - JOUR T1 - Finite-difference modeling of Biot's poroelastic equations across all frequencies AN - 753844576; 2010-074998 AB - An explicit time-stepping finite-difference scheme is presented for solving Biot's equations of poroelasticity across the entire band of frequencies. In the general case for which viscous boundary layers in the pores must be accounted for, the time-domain version of Darcy"s law contains a convolution integral. It is shown how to efficiently and directly perform the convolution so that the Darcy velocity can be properly updated at each time step. At frequencies that are low enough compared to the onset of viscous boundary layers, no memory terms are required. At higher frequencies, the number of memory terms required is the same as the number of time points it takes to sample accurately the wavelet being used. In practice, we never use more than 20 memory terms and often considerably fewer. Allowing for the convolution makes the scheme even more stable (even larger time steps might be used) than it is when the convolution is entirely neglected. The accuracy of the scheme is confirmed by comparing numerical examples to exact analytic results. JF - Geophysics AU - Masson, Y J AU - Pride, S R Y1 - 2010/03// PY - 2010 DA - March 2010 SP - N33 EP - N41 PB - Society of Exploration Geophysicists, Tulsa, OK VL - 75 IS - 2 SN - 0016-8033, 0016-8033 KW - processes KW - models KW - elasticity KW - finite difference analysis KW - poroelasticity KW - geophysical methods KW - frequency KW - equations KW - algorithms KW - permeability KW - seismic methods KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753844576?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysics&rft.atitle=Finite-difference+modeling+of+Biot%27s+poroelastic+equations+across+all+frequencies&rft.au=Masson%2C+Y+J%3BPride%2C+S+R&rft.aulast=Masson&rft.aufirst=Y&rft.date=2010-03-01&rft.volume=75&rft.issue=2&rft.spage=N33&rft.isbn=&rft.btitle=&rft.title=Geophysics&rft.issn=00168033&rft_id=info:doi/10.1190%2F1.3332589 L2 - http://library.seg.org/journal/gpysa7 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by Society of Exploration Geophysicists, Tulsa, OK, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 20 N1 - PubXState - OK N1 - Document feature - illus. N1 - Last updated - 2013-05-16 N1 - CODEN - GPYSA7 N1 - SubjectsTermNotLitGenreText - algorithms; elasticity; equations; finite difference analysis; frequency; geophysical methods; models; permeability; poroelasticity; processes; seismic methods DO - http://dx.doi.org/10.1190/1.3332589 ER - TY - JOUR T1 - Photoelectron spectroscopy of surfaces under humid conditions AN - 745934825; 12986431 AB - The interaction of water with surfaces plays a major role in many processes in the environment, atmosphere and technology. Weathering of rocks, adhesion between surfaces, and ionic conductance along surfaces are among many phenomena that are governed by the adsorption of molecularly thin water layers under ambient humidities. The properties of these thin water films, in particular their thickness, structure and hydrogen-bonding to the substrate as well as within the water film are up to now not very well understood. Ambient pressure photoelectron spectroscopy (APXPS) is a promising technique for the investigation of the properties of thin water films. In this article we will discuss the basics of APXPS as well as the particular challenges that are posed by investigations in water vapor at Torr pressures. We will also show examples of the application of APXPS to the study of water films on metals and oxides. JF - Journal of Electron Spectroscopy and Related Phenomena AU - Bluhm, Hendrik AD - Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States, HBluhm@lbl.gov Y1 - 2010/03// PY - 2010 DA - Mar 2010 SP - 71 EP - 84 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 177 IS - 2-3 SN - 0368-2048, 0368-2048 KW - Biotechnology and Bioengineering Abstracts KW - Metals KW - Conductance KW - Adsorption KW - Humidity KW - oxides KW - Weathering KW - Pressure KW - Spectroscopy KW - Photoelectron spectroscopy KW - Atmosphere KW - Films KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745934825?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Electron+Spectroscopy+and+Related+Phenomena&rft.atitle=Photoelectron+spectroscopy+of+surfaces+under+humid+conditions&rft.au=Bluhm%2C+Hendrik&rft.aulast=Bluhm&rft.aufirst=Hendrik&rft.date=2010-03-01&rft.volume=177&rft.issue=2-3&rft.spage=71&rft.isbn=&rft.btitle=&rft.title=Journal+of+Electron+Spectroscopy+and+Related+Phenomena&rft.issn=03682048&rft_id=info:doi/10.1016%2Fj.elspec.2009.08.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2015-04-09 N1 - SubjectsTermNotLitGenreText - Metals; Conductance; Adsorption; oxides; Humidity; Weathering; Spectroscopy; Pressure; Atmosphere; Photoelectron spectroscopy; Films DO - http://dx.doi.org/10.1016/j.elspec.2009.08.006 ER - TY - JOUR T1 - Molecular structure in water and solutions studied by photon-in/photon-out soft X-ray spectroscopy AN - 745933863; 12986427 AB - We demonstrate how X-ray emission spectroscopy can be used to elucidate the molecular structure of liquid water, liquid methanol, methanol-water mixtures, as well as cation-water solutions, and to reveal the influence of the intermolecular interaction on the local electronic structure of water molecules. By comparing X-ray emission spectra of the water molecule and liquid water, a strong involvement of the total-symmetric valence-orbital is found in the hydrogen bonding. The local electronic structure of water molecules under different broken hydrogen bonding situations can be separately determined. We find that molecules in the pure liquid methanol in a confined sample cell predominantly persist as hydrogen-bonded chains and rings with six and/or eight molecules of equal abundance. For water methanol solutions the evidence of incomplete mixing is observed at the microscopic level, which provides a new explanation for a smaller entropy increase in the solution due to water molecules bridging methanol chains to form rings. Further, the influences of cations on the water molecular structure have been studied by the X-ray absorption and emission spectra. JF - Journal of Electron Spectroscopy and Related Phenomena AU - Guo, Jinghua AU - Luo, Yi AD - Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, jguo@lbl.gov Y1 - 2010/03// PY - 2010 DA - Mar 2010 SP - 181 EP - 191 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 177 IS - 2-3 SN - 0368-2048, 0368-2048 KW - Biotechnology and Bioengineering Abstracts KW - Cations KW - Hydrogen bonding KW - Ionizing radiation KW - Methanol KW - Spectroscopy KW - Entropy KW - W 30940:Products UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745933863?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Electron+Spectroscopy+and+Related+Phenomena&rft.atitle=Molecular+structure+in+water+and+solutions+studied+by+photon-in%2Fphoton-out+soft+X-ray+spectroscopy&rft.au=Guo%2C+Jinghua%3BLuo%2C+Yi&rft.aulast=Guo&rft.aufirst=Jinghua&rft.date=2010-03-01&rft.volume=177&rft.issue=2-3&rft.spage=181&rft.isbn=&rft.btitle=&rft.title=Journal+of+Electron+Spectroscopy+and+Related+Phenomena&rft.issn=03682048&rft_id=info:doi/10.1016%2Fj.elspec.2010.02.011 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Cations; Hydrogen bonding; Ionizing radiation; Methanol; Spectroscopy; Entropy DO - http://dx.doi.org/10.1016/j.elspec.2010.02.011 ER - TY - JOUR T1 - Potential benefits of cool roofs on commercial buildings: conserving energy, saving money, and reducing emission of greenhouse gases and air pollutants AN - 745901903; 12600734 AB - Cool roofs-roofs that stay cool in the sun by minimizing solar absorption and maximizing thermal emission-lessen the flow of heat from the roof into the building, reducing the need for space cooling energy in conditioned buildings. Cool roofs may also increase the need for heating energy in cold climates. For a commercial building, the decrease in annual cooling load is typically much greater than the increase in annual heating load. This study combines building energy simulations, local energy prices, local electricity emission factors, and local estimates of building density to characterize local, state average, and national average cooling energy savings, heating energy penalties, energy cost savings, and emission reductions per unit conditioned roof area. The annual heating and cooling energy uses of four commercial building prototypes-new office (1980+), old office (pre-1980), new retail (1980+), and old retail (pre-1980)-were simulated in 236 US cities. Substituting a weathered cool white roof (solar reflectance 0.55) for a weathered conventional gray roof (solar reflectance 0.20) yielded annually a cooling energy saving per unit conditioned roof area ranging from 3.30kWh/m super(2) in Alaska to 7.69kWh/m super(2) in Arizona (5.02kWh/m super(2) nationwide); a heating energy penalty ranging from 0.003 therm/m super(2) in Hawaii to 0.14 therm/m super(2) in Wyoming (0.065 therm/m super(2) nationwide); and an energy cost saving ranging from $0.126/m super(2) in West Virginia to $1.14/m super(2) in Arizona ($0.356/m super(2) nationwide). It also offered annually a CO sub(2) reduction ranging from 1.07kg/m super(2) in Alaska to 4.97kg/m super(2) in Hawaii (3.02kg/m super(2) nationwide); an NO sub(x) reduction ranging from 1.70g/m super(2) in New York to 11.7g/m super(2) in Hawaii (4.81g/m super(2) nationwide); an SO sub(2) reduction ranging from 1.79g/m super(2) in California to 26.1g/m super(2) in Alabama (12.4g/m super(2) nationwide); and an Hg reduction ranging from 1.08 mu g/m super(2) in Alaska to 105 mu g/m super(2) in Alabama (61.2 mu g/m super(2) nationwide). Retrofitting 80% of the 2.58 billion square meters of commercial building conditioned roof area in the USA would yield an annual cooling energy saving of 10.4TWh; an annual heating energy penalty of 133 million therms; and an annual energy cost saving of $735 million. It would also offer an annual CO sub(2) reduction of 6.23Mt, offsetting the annual CO sub(2) emissions of 1.20 million typical cars or 25.4 typical peak power plants; an annual NO sub(x) reduction of 9.93kt, offsetting the annual NO sub(x) emissions of 0.57 million cars or 65.7 peak power plants; an annual SO sub(2) reduction of 25.6kt, offsetting the annual SO sub(2) emissions of 815 peak power plants; and an annual Hg reduction of 126kg. JF - Energy Efficiency AU - Levinson, Ronnen AU - Akbari, Hashem AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90R2000, Berkeley, CA, 94720, USA, RML27@cornell.edu Y1 - 2010/03// PY - 2010 DA - Mar 2010 SP - 53 EP - 109 PB - Dordrecht VL - 3 IS - 1 SN - 1570-646X, 1570-646X KW - Pollution Abstracts; Sustainability Science Abstracts KW - Air pollution control KW - sun KW - USA, Alabama KW - Sulfur dioxide KW - Power plants KW - Emissions KW - Absorption KW - USA, California KW - Cooling systems KW - Urban areas KW - USA, Alaska KW - Energy efficiency KW - USA, Wyoming KW - USA, Hawaii KW - Climate KW - Energy conservation KW - Simulation KW - Emission control KW - Energy consumption KW - USA, West Virginia KW - Buildings KW - USA, New York KW - Air pollution KW - USA, Arizona KW - Carbon dioxide KW - Greenhouse gases KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745901903?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Efficiency&rft.atitle=Potential+benefits+of+cool+roofs+on+commercial+buildings%3A+conserving+energy%2C+saving+money%2C+and+reducing+emission+of+greenhouse+gases+and+air+pollutants&rft.au=Levinson%2C+Ronnen%3BAkbari%2C+Hashem&rft.aulast=Levinson&rft.aufirst=Ronnen&rft.date=2010-03-01&rft.volume=3&rft.issue=1&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Energy+Efficiency&rft.issn=1570646X&rft_id=info:doi/10.1007%2Fs12053-008-9038-2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Energy efficiency; Climate; Energy conservation; Simulation; Emission control; Air pollution control; Energy consumption; Buildings; sun; Air pollution; Sulfur dioxide; Absorption; Emissions; Power plants; Greenhouse gases; Carbon dioxide; Cooling systems; Urban areas; USA, Alaska; USA, Alabama; USA, Wyoming; USA, Hawaii; USA, Arizona; USA, California; USA, West Virginia; USA, New York DO - http://dx.doi.org/10.1007/s12053-008-9038-2 ER - TY - JOUR T1 - Coupled reservoir-geomechanical analysis of CO sub(2) injection and ground deformations at In Salah, Algeria AN - 745706073; 12965465 AB - In Salah Gas Project in Algeria has been injecting 0.5-1 million tonnes CO sub(2) per year over the past 5 years into a water-filled strata at a depth of about 1800-1900 m. Unlike most CO sub(2) storage sites, the permeability of the storage formation is relatively low and comparatively thin with a thickness of about 20 m. To ensure adequate CO sub(2) flow-rates across the low-permeability sand-face, the In Salah Gas Project decided to use long-reach (about 1-1.5 km) horizontal injection wells. In an ongoing research project we use field data and coupled reservoir-geomechanical numerical modeling to assess the effectiveness of this approach and to investigate monitoring techniques to evaluate the performance of a CO sub(2) injection operation in relatively low-permeability formations. Among the field data used are ground surface deformations evaluated from recently acquired satellite-based inferrometry (InSAR). The InSAR data shows a surface uplift on the order of 5 mm per year above active CO sub(2) injection wells and the uplift pattern extends several km from the injection wells. In this paper we use the observed surface uplift to constrain our coupled reservoir-geomechanical model and conduct sensitivity studies to investigate potential causes and mechanisms of the observed uplift. The results of our analysis indicate that most of the observed uplift magnitude can be explained by pressure-induced, poro-elastic expansion of the 20-m-thick injection zone, but there could also be a significant contribution from pressure-induced deformations within a 100-m-thick zone of shaly sands immediately above the injection zone. JF - International Journal of Greenhouse Gas Control AU - Rutqvist, Jonny AU - Vasco, Donald W AU - Myer, Larry AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, University of California, 1 Cyclotron Road, MS 90-1116, Berkeley, CA 94720, USA, Jrutqvist@lbl.gov Y1 - 2010/03// PY - 2010 DA - Mar 2010 SP - 225 EP - 230 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 4 IS - 2 SN - 1750-5836, 1750-5836 KW - Environment Abstracts; Pollution Abstracts KW - Sensitivity KW - Mathematical models KW - Injection wells KW - deformation KW - Storage KW - Permeability KW - Sand KW - Carbon dioxide KW - Greenhouse gases KW - Algeria KW - P 0000:AIR POLLUTION KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745706073?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=Coupled+reservoir-geomechanical+analysis+of+CO+sub%282%29+injection+and+ground+deformations+at+In+Salah%2C+Algeria&rft.au=Rutqvist%2C+Jonny%3BVasco%2C+Donald+W%3BMyer%2C+Larry&rft.aulast=Rutqvist&rft.aufirst=Jonny&rft.date=2010-03-01&rft.volume=4&rft.issue=2&rft.spage=225&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2009.10.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2011-12-15 N1 - SubjectsTermNotLitGenreText - Storage; Permeability; Sensitivity; Mathematical models; Injection wells; Sand; Greenhouse gases; deformation; Carbon dioxide; Algeria DO - http://dx.doi.org/10.1016/j.ijggc.2009.10.017 ER - TY - JOUR T1 - Hydrogeology Journal AN - 742926424; 2010-058846 JF - Hydrogeology Journal AU - Liu, Hui-Hai Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 535 EP - 537 PB - Springer, Berlin - Heidelberg VL - 18 IS - 2 SN - 1431-2174, 1431-2174 KW - fractured materials KW - experimental studies KW - dispersivity KW - numerical models KW - matrix KW - preferential flow KW - simulation KW - two-dimensional models KW - ground water KW - aquifers KW - models KW - fractures KW - errors KW - saturation KW - sensitivity analysis KW - infiltration KW - tracers KW - lattice Boltzmann method KW - unsaturated flow KW - diffusivity KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742926424?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Hydrogeology+Journal&rft.atitle=Hydrogeology+Journal&rft.au=Liu%2C+Hui-Hai&rft.aulast=Liu&rft.aufirst=Hui-Hai&rft.date=2010-03-01&rft.volume=18&rft.issue=2&rft.spage=535&rft.isbn=&rft.btitle=&rft.title=Hydrogeology+Journal&rft.issn=14312174&rft_id=info:doi/10.1007%2Fs10040-009-0564-6 L2 - http://www.springerlink.com/content/102028/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 6 N1 - Document feature - illus. N1 - SuppNotes - For reference to original see Succi, S., et al., Hydrogeology Journal, Vol. 17, No. 6, p. 1347-1358, 2009 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; diffusivity; dispersivity; errors; experimental studies; fractured materials; fractures; ground water; infiltration; lattice Boltzmann method; matrix; models; numerical models; preferential flow; saturation; sensitivity analysis; simulation; tracers; two-dimensional models; unsaturated flow DO - http://dx.doi.org/10.1007/s10040-009-0564-6 ER - TY - JOUR T1 - Mathematical treatment of isotopologue and isotopomer speciation and fractionation in biochemical kinetics AN - 742922957; 2010-061973 AB - We present a mathematical treatment of the kinetic equations that describe isotopologue and isotopomer speciation and fractionation during enzyme-catalyzed biochemical reactions. These equations, presented here with the name GEBIK (general equations for biochemical isotope kinetics) and GEBIF (general equations for biochemical isotope fractionation), take into account microbial biomass and enzyme dynamics, reaction stoichiometry, isotope substitution number, and isotope location within each isotopologue and isotopomer. In addition to solving the complete GEBIK and GEBIF, we also present and discuss two approximations to the full solutions under the assumption of biomass-free and enzyme steady-state, and under the quasi-steady-state assumption as applied to the complexation rate. The complete and approximate approaches are applied to observations of biological denitrification in soils. Our analysis highlights that the full GEBIK and GEBIF provide a more accurate description of concentrations and isotopic compositions of substrates and products throughout the reaction than do the approximate forms. We demonstrate that the isotopic effects of a biochemical reaction depend, in the most general case, on substrate and complex concentrations and, therefore, the fractionation factor is a function of time. We also demonstrate that inverse isotopic effects can occur for values of the fractionation factor smaller than 1, and that reactions that do not discriminate isotopes do not necessarily imply a fractionation factor equal to 1. JF - Geochimica et Cosmochimica Acta AU - Maggi, F AU - Riley, W J Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 1823 EP - 1835 PB - Elsevier, New York, NY VL - 74 IS - 6 SN - 0016-7037, 0016-7037 KW - isotope fractionation KW - isotopes KW - biomass KW - biochemistry KW - pollution KW - equations KW - enzymes KW - remediation KW - organic compounds KW - soil pollution KW - denitrification KW - mathematical methods KW - molecular dynamics KW - proteins KW - kinetics KW - geochemistry KW - chemical fractionation KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742922957?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Mathematical+treatment+of+isotopologue+and+isotopomer+speciation+and+fractionation+in+biochemical+kinetics&rft.au=Maggi%2C+F%3BRiley%2C+W+J&rft.aulast=Maggi&rft.aufirst=F&rft.date=2010-03-01&rft.volume=74&rft.issue=6&rft.spage=1823&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2009.12.021 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 21 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - biochemistry; biomass; chemical fractionation; denitrification; enzymes; equations; geochemistry; isotope fractionation; isotopes; kinetics; mathematical methods; molecular dynamics; organic compounds; pollution; proteins; remediation; soil pollution DO - http://dx.doi.org/10.1016/j.gca.2009.12.021 ER - TY - JOUR T1 - Combined U-Th/He and (super 40) Ar/ (super 39) Ar geochronology of post-shield lavas from the Mauna Kea and Kohala volcanoes, Hawaii AN - 742921168; 2010-061954 AB - Late Quaternary, post-shield lavas from the Mauna Kea and Kohala volcanoes on the Big Island of Hawaii have been dated using the (super 40) Ar/ (super 39) Ar and U-Th/He methods. The objective of the study is to compare the recently demonstrated U-Th/He age method, which uses basaltic olivine phenocrysts, with (super 40) Ar/ (super 39) Ar ages measured on groundmass from the same samples. As a corollary, the age data also increase the precision of the chronology of volcanism on the Big Island. For the U-Th/He ages, U, Th and He concentrations and isotopes were measured to account for U-series disequilibrium and initial He. Single analyses U-Th/He ages for Hamakua lavas from Mauna Kea are 87 + or - 40 to 119 + or - 23 ka (2sigma uncertainties), which are in general equal to or younger than (super 40) Ar/ (super 39) Ar ages. Basalt from the Polulu sequence on Kohala gives a U-Th/He age of 354 + or - 54 ka and a (super 40) Ar/ (super 39) Ar age of 450 + or - 40 ka. All of the U-Th/He ages, and all but one spurious (super 40) Ar/ (super 39) Ar ages conform to the previously proposed stratigraphy and published (super 14) C and K-Ar ages. The ages also compare favorably to U-Th whole rock-olivine ages calculated from (super 238) U- (super 230) Th disequilibria. The U-Th/He and (super 40) Ar/ (super 39) Ar results agree best where there is a relatively large amount of radiogenic (super 40) Ar (>10%), and where the (super 40) Ar/ (super 36) Ar intercept calculated from the Ar isochron diagram is close to the atmospheric value. In two cases, it is not clear why U-Th/He and (super 40) Ar/ (super 39) Ar ages do not agree within uncertainty. U-Th/He and (super 40) Ar/ (super 39) Ar results diverge the most on a low-K transitional tholeiitic basalt with abundant olivine. For the most alkalic basalts with negligible olivine phenocrysts, U-Th/He ages were unattainable while (super 40) Ar/ (super 39) Ar results provide good precision even on ages as low as 19 + or - 4 ka. Hence, the strengths and weaknesses of the U-Th/He and (super 40) Ar/ (super 39) Ar methods are complimentary for basalts with ages of order 100-500 ka. JF - Geochimica et Cosmochimica Acta AU - Aciego, S M AU - Jourdan, F AU - DePaolo, D J AU - Kennedy, B M AU - Renne, P R AU - Sims, K W W Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 1620 EP - 1635 PB - Elsevier, New York, NY VL - 74 IS - 5 SN - 0016-7037, 0016-7037 KW - United States KW - Hawaii Island KW - volcanic rocks KW - isotopes KW - igneous rocks KW - Mauna Kea KW - Holocene KW - uranium disequilibrium KW - Cenozoic KW - (U-Th)/He KW - radioactive isotopes KW - dates KW - carbon KW - basalts KW - absolute age KW - shield volcanoes KW - geochemistry KW - Ar/Ar KW - petrology KW - Quaternary KW - Hawaii County Hawaii KW - textures KW - Hawaii KW - East Pacific Ocean Islands KW - Kohala KW - lava KW - Oceania KW - volcanoes KW - Polynesia KW - C-14 KW - 24:Quaternary geology KW - 03:Geochronology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742921168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Combined+U-Th%2FHe+and+%28super+40%29+Ar%2F+%28super+39%29+Ar+geochronology+of+post-shield+lavas+from+the+Mauna+Kea+and+Kohala+volcanoes%2C+Hawaii&rft.au=Aciego%2C+S+M%3BJourdan%2C+F%3BDePaolo%2C+D+J%3BKennedy%2C+B+M%3BRenne%2C+P+R%3BSims%2C+K+W+W&rft.aulast=Aciego&rft.aufirst=S&rft.date=2010-03-01&rft.volume=74&rft.issue=5&rft.spage=1620&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2009.11.020 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 73 N1 - PubXState - NY N1 - Document feature - illus. incl. 3 tables, geol. sketch map N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - (U-Th)/He; absolute age; Ar/Ar; basalts; C-14; carbon; Cenozoic; dates; East Pacific Ocean Islands; geochemistry; Hawaii; Hawaii County Hawaii; Hawaii Island; Holocene; igneous rocks; isotopes; Kohala; lava; Mauna Kea; Oceania; petrology; Polynesia; Quaternary; radioactive isotopes; shield volcanoes; textures; United States; uranium disequilibrium; volcanic rocks; volcanoes DO - http://dx.doi.org/10.1016/j.gca.2009.11.020 ER - TY - JOUR T1 - Evaluation of potential changes in groundwater quality in response to CO (sub 2) leakage from deep geologic storage AN - 742913666; 2010-041633 AB - Concern has been expressed that carbon dioxide (CO (sub 2) ) leaking from deep geological storage could adversely impact water quality in overlying potable aquifers by mobilizing hazardous trace elements. In this article, we present a systematic evaluation of the possible water quality changes in response to CO (sub 2) intrusion into aquifers currently used as sources of potable water in the United States. The evaluation was done in three parts. First, we developed a comprehensive geochemical model of aquifers throughout the United States, evaluating the initial aqueous abundances, distributions, and modes of occurrence of selected hazardous trace elements in a large number of potable groundwater quality analyses from the National Water Information System (NWIS) database. For each analysis, we calculated the saturation indices (SIs) of several minerals containing these trace elements. The minerals were initially selected through literature surveys to establish whether field evidence supported their postulated presence in potable water aquifers. Mineral assemblages meeting the criterion of thermodynamic saturation were assumed to control the aqueous concentrations of the hazardous elements at initial system state as well as at elevated CO (sub 2) concentrations caused by the ingress of leaking CO (sub 2) . In the second step, to determine those hazardous trace elements of greatest concern in the case of CO (sub 2) leakage, we conducted thermodynamic calculations to predict the impact of increasing CO (sub 2) partial pressures on the solubilities of the identified trace element mineral hosts. Under reducing conditions characteristic of many groundwaters, the trace elements of greatest concern are arsenic (As) and lead (Pb). In the final step, a series of reactive-transport simulations was performed to investigate the chemical evolution of aqueous As and Pb after the intrusion of CO (sub 2) from a storage reservoir into a shallow confined groundwater resource. Results from the reactive-transport model suggest that a significant increase of aqueous As and Pb concentrations may occur in response to CO (sub 2) intrusion, but that the maximum concentration values remain below or close to specified maximum contaminant levels (MCLs). Adsorption/desorption from mineral surfaces may strongly impact the mobilization of As and Pb. Copyright 2010 Springer Science+Business Media B.V. and The Author(s) JF - Transport in Porous Media AU - Apps, J A AU - Zheng, L AU - Zhang, Y AU - Xu, T AU - Birkholzer, J T A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 215 EP - 246 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - hazardous waste KW - water quality KW - deep aquifers KW - lead KW - coupling KW - ground water KW - carbon dioxide KW - reactivity KW - transport KW - sensitivity analysis KW - reactive transport KW - leaky aquifers KW - trace elements KW - thermodynamic properties KW - saline composition KW - concentration KW - numerical models KW - underground storage KW - injection KW - arsenic KW - pollution KW - migration of elements KW - adsorption KW - aquifers KW - models KW - metals KW - underground installations KW - reservoir properties KW - greenhouse gases KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742913666?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Evaluation+of+potential+changes+in+groundwater+quality+in+response+to+CO+%28sub+2%29+leakage+from+deep+geologic+storage&rft.au=Apps%2C+J+A%3BZheng%2C+L%3BZhang%2C+Y%3BXu%2C+T%3BBirkholzer%2C+J+T&rft.aulast=Apps&rft.aufirst=J&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=215&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9509-8 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 70 N1 - Document feature - illus. incl. 5 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - adsorption; aquifers; arsenic; carbon dioxide; concentration; coupling; deep aquifers; greenhouse gases; ground water; hazardous waste; injection; lead; leaky aquifers; metals; migration of elements; models; numerical models; pollution; reactive transport; reactivity; reservoir properties; saline composition; sensitivity analysis; thermodynamic properties; trace elements; transport; underground installations; underground storage; water quality DO - http://dx.doi.org/10.1007/s11242-009-9509-8 ER - TY - JOUR T1 - Direct observation of trapped gas bubbles by capillarity in sandy porous media AN - 742908541; 2010-041627 AB - We investigated the mechanism of residual gas trapping at a microscopic level. We imaged trapped air bubbles in a Berea sandstone chip after spontaneous imbibition at atmospheric pressure. The pore structure and trapped bubbles were observed by microfocused X-ray computed tomography. Distributions of trapped bubbles in Berea and Tako sandstone were imaged in coreflooding at a capillary number of 1.0X10 (super -6) . Trapped bubbles are of two types, those occupying the center of the pore with a pore-scale size and others having a pore-network scale size. In low-porosity media such as sandstone, connected bubbles contribute greatly to trapped gas saturation. Effects of capillary number and injected water volume were investigated using a packed bed of glass beads 600 mu m in diameter, which had high porosity (38%). The trapped N (sub 2) bubbles are stable against the water flow rate corresponding to a capillary number of 1.0X10 (super -4) . Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Suekane, Tetsuya AU - Zhou, Na AU - Hosokawa, Takahiro AU - Matsumoto, Takuya A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 111 EP - 122 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - United States KW - tomography KW - sandstone KW - simulation KW - reservoir rocks KW - ground water KW - carbon dioxide KW - sedimentary rocks KW - Tako Sandstone KW - gaseous phase KW - Paleozoic KW - injection KW - bubbles KW - Berea Sandstone KW - pollution KW - porous materials KW - capillarity KW - porosity KW - aquifers KW - saturation KW - traps KW - wettability KW - reservoir properties KW - clastic rocks KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742908541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Direct+observation+of+trapped+gas+bubbles+by+capillarity+in+sandy+porous+media&rft.au=Suekane%2C+Tetsuya%3BZhou%2C+Na%3BHosokawa%2C+Takahiro%3BMatsumoto%2C+Takuya&rft.aulast=Suekane&rft.aufirst=Tetsuya&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=111&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9439-5 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 35 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; Berea Sandstone; bubbles; capillarity; carbon dioxide; clastic rocks; gaseous phase; ground water; injection; Paleozoic; pollution; porosity; porous materials; reservoir properties; reservoir rocks; sandstone; saturation; sedimentary rocks; simulation; Tako Sandstone; tomography; traps; United States; wettability DO - http://dx.doi.org/10.1007/s11242-009-9439-5 ER - TY - JOUR T1 - A phase-partitioning model for CO (sub 2) -brine mixtures at elevated temperatures and pressures; application to CO (sub 2) -enhanced geothermal systems AN - 742907708; 2010-041631 AB - Correlations are presented to compute the mutual solubilities of CO (sub 2) and chloride brines at temperatures 12-300 degrees C, pressures 1-600 bar (0.1-60 MPa), and salinities 0-6 m NaCl. The formulation is computationally efficient and primarily intended for numerical simulations of CO (sub 2) -water flow in carbon sequestration and geothermal studies. The phase-partitioning model relies on experimental data from literature for phase partitioning between CO (sub 2) and NaCl brines, and extends the previously published correlations to higher temperatures. The model relies on activity coefficients for the H (sub 2) O-rich (aqueous) phase and fugacity coefficients for the CO (sub 2) -rich phase. Activity coefficients are treated using a Margules expression for CO (sub 2) in pure water, and a Pitzer expression for salting-out effects. Fugacity coefficients are computed using a modified Redlich-Kwong equation of state and mixing rules that incorporate asymmetric binary interaction parameters. Parameters for the calculation of activity and fugacity coefficients were fitted to published solubility data over the P-T range of interest. In doing so, mutual solubilities and gas-phase volumetric data are typically reproduced within the scatter of the available data. An example of multiphase flow simulation implementing the mutual solubility model is presented for the case of a hypothetical, enhanced geothermal system where CO (sub 2) is used as the heat extraction fluid. In this simulation, dry supercritical CO (sub 2) at 20 degrees C is injected into a 200 degrees C hot-water reservoir. Results show that the injected CO (sub 2) displaces the formation water relatively quickly, but that the produced CO (sub 2) contains significant water for long periods of time. The amount of water in the CO (sub 2) could have implications for reactivity with reservoir rocks and engineered materials. Copyright 2010 Springer Science+Business Media B.V. and 2009 The Author(s) JF - Transport in Porous Media AU - Spycher, Nicolas AU - Pruess, Karsten A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 173 EP - 196 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - chlorine KW - carbon sequestration KW - pressure KW - numerical models KW - injection KW - halogens KW - porous materials KW - storage coefficient KW - solubility KW - temperature KW - carbon dioxide KW - partitioning KW - geothermal systems KW - transport KW - chloride ion KW - brines KW - multiphase flow KW - reservoir properties KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742907708?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=A+phase-partitioning+model+for+CO+%28sub+2%29+-brine+mixtures+at+elevated+temperatures+and+pressures%3B+application+to+CO+%28sub+2%29+-enhanced+geothermal+systems&rft.au=Spycher%2C+Nicolas%3BPruess%2C+Karsten&rft.aulast=Spycher&rft.aufirst=Nicolas&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9425-y L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 65 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - brines; carbon dioxide; carbon sequestration; chloride ion; chlorine; geothermal systems; halogens; injection; multiphase flow; numerical models; partitioning; porous materials; pressure; reservoir properties; solubility; storage coefficient; temperature; transport; underground disposal DO - http://dx.doi.org/10.1007/s11242-009-9425-y ER - TY - JOUR T1 - A new coal-permeability model; internal swelling stress and fracture-matrix interaction AN - 742907674; 2010-041630 AB - We have developed a new coal-permeability model for uniaxial strain and constant confining-stress conditions. The model is unique in that it explicitly considers fracture-matrix interaction during coal-deformation processes and is based on a newly proposed internal swelling stress concept. This concept is used to account for the impact of matrix swelling (or shrinkage) on fracture-aperture changes resulting from partial separation of matrix blocks by fractures that do not completely cut through the whole matrix. The proposed permeability model is evaluated using data from three Valencia Canyon coalbed wells in the San Juan Basin, where increased permeability has been observed during CH (sub 4) gas production, as well as using published data from laboratory tests. Model results are generally in good agreement with observed permeability changes. The importance of fracture-matrix interaction in determining coal permeability, demonstrated in this study using relatively simple stress conditions, underscores the need for a dual-continuum (fracture and matrix) mechanical approach to rigorously capture coal-deformation processes under complex stress conditions, as well as the coupled flow and transport processes in coal seams. Copyright 2010 Springer Science+Business Media B.V. and 2009 The Author(s) JF - Transport in Porous Media AU - Liu, Hui-Hai AU - Rutqvist, Jonny A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 157 EP - 171 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - United States KW - strain KW - aliphatic hydrocarbons KW - coal seams KW - rock mechanics KW - carbon dioxide KW - fractures KW - transport KW - San Juan Basin KW - confining pressure KW - methane KW - carbon sequestration KW - matrix KW - stress KW - mechanical properties KW - alkanes KW - deformation KW - models KW - organic compounds KW - infiltration KW - hydrocarbons KW - expansive materials KW - reservoir properties KW - permeability KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742907674?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=A+new+coal-permeability+model%3B+internal+swelling+stress+and+fracture-matrix+interaction&rft.au=Liu%2C+Hui-Hai%3BRutqvist%2C+Jonny&rft.aulast=Liu&rft.aufirst=Hui-Hai&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=157&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9442-x L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 33 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; carbon dioxide; carbon sequestration; coal seams; confining pressure; deformation; expansive materials; fractures; hydrocarbons; infiltration; matrix; mechanical properties; methane; models; organic compounds; permeability; reservoir properties; rock mechanics; San Juan Basin; strain; stress; transport; United States DO - http://dx.doi.org/10.1007/s11242-009-9442-x ER - TY - JOUR T1 - Investigation of CO (sub 2) plume behavior for a large-scale pilot test of geologic carbon storage in a saline formation AN - 742904918; 2010-041624 AB - The hydrodynamic behavior of carbon dioxide (CO (sub 2) ) injected into a deep saline formation is investigated, focusing on trapping mechanisms that lead to CO (sub 2) plume stabilization. A numerical model of the subsurface at a proposed power plant with CO (sub 2) capture is developed to simulate a planned pilot test, in which 1,000,000 metric tons of CO (sub 2) is injected over a 4-year period, and the subsequent evolution of the CO (sub 2) plume for hundreds of years. Key measures are plume migration distance and the time evolution of the partitioning of CO (sub 2) between dissolved, immobile free-phase, and mobile free-phase forms. Model results indicate that the injected CO (sub 2) plume is effectively immobilized at 25 years. At that time, 38% of the CO (sub 2) is in dissolved form, 59% is immobile free phase, and 3% is mobile free phase. The plume footprint is roughly elliptical, and extends much farther up-dip of the injection well than down-dip. The pressure increase extends far beyond the plume footprint, but the pressure response decreases rapidly with distance from the injection well, and decays rapidly in time once injection ceases. Sensitivity studies that were carried out to investigate the effect of poorly constrained model parameters permeability, permeability anisotropy, and residual CO (sub 2) saturation indicate that small changes in properties can have a large impact on plume evolution, causing significant trade-offs between different trapping mechanisms. Copyright 2010 Springer Science+Business Media B.V. and 2009 The Author(s) JF - Transport in Porous Media AU - Doughty, Christine A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 49 EP - 76 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - United States KW - deep aquifers KW - contaminant plumes KW - sedimentary basins KW - mechanism KW - power plants KW - storage coefficient KW - simulation KW - reservoir rocks KW - carbon dioxide KW - California KW - sedimentary rocks KW - transport KW - basins KW - hydrodynamics KW - discharge KW - saline composition KW - carbon sequestration KW - San Joaquin Valley KW - numerical models KW - shale KW - injection KW - pollution KW - porous materials KW - mathematical models KW - migration of elements KW - boundary conditions KW - aquifers KW - lithofacies KW - dissolved materials KW - brines KW - traps KW - multiphase flow KW - industrial waste KW - reservoir properties KW - waste disposal KW - clastic rocks KW - underground disposal KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742904918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Investigation+of+CO+%28sub+2%29+plume+behavior+for+a+large-scale+pilot+test+of+geologic+carbon+storage+in+a+saline+formation&rft.au=Doughty%2C+Christine&rft.aulast=Doughty&rft.aufirst=Christine&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=49&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9396-z L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. 4 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; basins; boundary conditions; brines; California; carbon dioxide; carbon sequestration; clastic rocks; contaminant plumes; deep aquifers; discharge; dissolved materials; hydrodynamics; industrial waste; injection; lithofacies; mathematical models; mechanism; migration of elements; multiphase flow; numerical models; permeability; pollution; porous materials; power plants; reservoir properties; reservoir rocks; saline composition; San Joaquin Valley; sedimentary basins; sedimentary rocks; shale; simulation; storage coefficient; transport; traps; underground disposal; United States; waste disposal DO - http://dx.doi.org/10.1007/s11242-009-9396-z ER - TY - JOUR T1 - Transport in geologic CO (sub 2) storage systems AN - 742904898; 2010-041620 JF - Transport in Porous Media A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 274 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - carbon sequestration KW - injection KW - porous materials KW - mathematical models KW - storage coefficient KW - reservoir rocks KW - carbon dioxide KW - transport KW - industrial waste KW - waste disposal KW - discharge KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742904898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=&rft.aulast=&rft.aufirst=&rft.date=2010-03-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=Transport+in+geologic+CO+%28sub+2%29+storage+systems&rft.title=Transport+in+geologic+CO+%28sub+2%29+storage+systems&rft.issn=01693913&rft_id=info:doi/ L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Document feature - illus. N1 - SuppNotes - Individual papers are cited separately N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; discharge; industrial waste; injection; mathematical models; porous materials; reservoir rocks; storage coefficient; transport; underground disposal; waste disposal ER - TY - JOUR T1 - New trapping mechanism in carbon sequestration AN - 742904720; 2010-041621 AB - The modes of geologic storage of CO (sub 2) are usually categorized as structural, dissolution, residual, and mineral trapping. Here we argue that the heterogeneity intrinsic to sedimentary rocks gives rise to a fifth category of storage, which we call local capillary trapping. Local capillary trapping occurs during buoyancy-driven migration of bulk phase CO (sub 2) within a saline aquifer. When the rising CO (sub 2) plume encounters a region (10 (super -2) to 10 (super +1) m) where capillary entry pressure is locally larger than average, CO (sub 2) accumulates beneath the region. This form of storage differs from structural trapping in that much of the accumulated saturation will not escape, should the integrity of the seal overlying the aquifer be compromised. Local capillary trapping differs from residual trapping in that the accumulated saturation can be much larger than the residual saturation for the rock. We examine local capillary trapping in a series of numerical simulations. The essential feature is that the drainage curves (capillary pressure versus saturation for CO (sub 2) displacing brine) are required to be consistent with permeabilities in a heterogeneous domain. In this work, we accomplish this with the Leverett J-function, so that each grid block has its own drainage curve, scaled from a reference curve to the permeability and porosity in that block. We find that capillary heterogeneity controls the path taken by rising CO (sub 2) . The displacement front is much more ramified than in a homogeneous domain, or in a heterogeneous domain with a single drainage curve. Consequently, residual trapping is overestimated in simulations that ignore capillary heterogeneity. In the cases studied here, the reduction in residual trapping is compensated by local capillary trapping, which yields larger saturations held in a smaller volume of pore space. Moreover, the amount of CO (sub 2) phase remaining mobile after a leak develops in the caprock is smaller. Therefore, the extent of immobilization in a heterogeneous formation exceeds that reported in previous studies of buoyancy-driven plume movement. Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Saadatpoor, Ehsan AU - Bryant, Steven L AU - Sepehrnoori, Kamy A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 3 EP - 17 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - contaminant plumes KW - capillary pressure KW - storage coefficient KW - reservoir rocks KW - ground water KW - carbon dioxide KW - buoyancy KW - sedimentary rocks KW - transport KW - discharge KW - saline composition KW - carbon sequestration KW - numerical models KW - injection KW - pollution KW - porous materials KW - mathematical models KW - capillarity KW - porosity KW - aquifers KW - saturation KW - brines KW - industrial waste KW - waste disposal KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742904720?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=New+trapping+mechanism+in+carbon+sequestration&rft.au=Saadatpoor%2C+Ehsan%3BBryant%2C+Steven+L%3BSepehrnoori%2C+Kamy&rft.aulast=Saadatpoor&rft.aufirst=Ehsan&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=3&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9446-6 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; brines; buoyancy; capillarity; capillary pressure; carbon dioxide; carbon sequestration; contaminant plumes; discharge; ground water; industrial waste; injection; mathematical models; numerical models; pollution; porosity; porous materials; reservoir rocks; saline composition; saturation; sedimentary rocks; storage coefficient; transport; underground disposal; waste disposal DO - http://dx.doi.org/10.1007/s11242-009-9446-6 ER - TY - JOUR T1 - Pore scale modeling of reactive transport involved in geologic CO (sub 2) sequestration AN - 742904517; 2010-041632 AB - We apply a multi-component reactive transport lattice Boltzmann model developed in previous studies for modeling the injection of a CO (sub 2) -saturated brine into various porous media structures at temperatures T=25 and 80 degrees C. In the various cases considered the porous medium consists initially of calcite with varying grain size and shape. A chemical system consisting of Na (super +) , Ca (super 2+) , Mg (super 2+) , H (super +) , CO degrees (sub 2) (aq), and Cl (super -) is considered. Flow and transport by advection and diffusion of aqueous species, combined with homogeneous reactions occurring in the bulk fluid, as well as the dissolution of calcite and precipitation of dolomite are simulated at the pore scale. The effects of the structure of the porous media on reactive transport are investigated. The results are compared with a continuum-scale model and the discrepancies between the pore- and continuum-scale models are discussed. This study sheds some light on the fundamental physics occurring at the pore scale for reactive transport involved in geologic CO (sub 2) sequestration. Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Kang, Qinjun AU - Lichtner, Peter C AU - Viswanathan, Hari S AU - Abdel-Fattah, Amr I A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 197 EP - 213 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - scale factor KW - carbon sequestration KW - numerical models KW - lattice KW - grain size KW - pollution KW - porous materials KW - mathematical models KW - preferential flow KW - advection KW - porosity KW - carbon dioxide KW - models KW - chemical reactions KW - transport KW - reactive transport KW - waste disposal KW - diffusivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742904517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Pore+scale+modeling+of+reactive+transport+involved+in+geologic+CO+%28sub+2%29+sequestration&rft.au=Kang%2C+Qinjun%3BLichtner%2C+Peter+C%3BViswanathan%2C+Hari+S%3BAbdel-Fattah%2C+Amr+I&rft.aulast=Kang&rft.aufirst=Qinjun&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=197&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9443-9 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 30 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - advection; carbon dioxide; carbon sequestration; chemical reactions; diffusivity; grain size; lattice; mathematical models; models; numerical models; pollution; porosity; porous materials; preferential flow; reactive transport; scale factor; transport; waste disposal DO - http://dx.doi.org/10.1007/s11242-009-9443-9 ER - TY - JOUR T1 - An experimental study on the influence of sub-core scale heterogeneities on CO (sub 2) distribution in reservoir rocks AN - 742904495; 2010-041626 AB - This article presents the results of CO (sub 2) /brine two-phase flow experiments in rocks at reservoir conditions. X-ray CT scanning is used to determine CO (sub 2) saturation at a fine scale with a resolution of a few pore volumes and provide 3D porosity and saturation maps that can be use to correlate CO (sub 2) saturations and rock properties. The study highlights the strong influence of sub-core scale heterogeneities on the spatial distribution of CO (sub 2) at steady state and provides useful relative permeability data on a sample originated from an actual storage site (CO2CRC-Otway project, Victoria, South-West Australia). Two different samples tested, although different in nature, present strong heterogeneities, but differ in the detail of the connectivity of high porosity layers. In both samples, the results of the investigations show that sub-core scale heterogeneities control the sweep efficiency and may cause channeling through the porous medium. In one of the samples, CO (sub 2) saturation appears uncorrelated to porosity close to the outlet end of the core. This observation is understood as a result of the position and the orientation of high porosity layers with respect to the inlet face of the core. Finally, in the operating conditions of the two experiments, the saturation maps demonstrate that gravity does not play a major role since no detectable buoyancy driven flow is observed. Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Perrin, Jean-Christophe AU - Benson, Sally A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 93 EP - 109 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - experimental studies KW - two-phase models KW - monitoring KW - three-dimensional models KW - injection KW - pollution KW - porous materials KW - preferential flow KW - distribution KW - porosity KW - reservoir rocks KW - ground water KW - carbon dioxide KW - buoyancy KW - aquifers KW - heterogeneous materials KW - saturation KW - brines KW - reservoir properties KW - depletion KW - saline composition KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742904495?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=An+experimental+study+on+the+influence+of+sub-core+scale+heterogeneities+on+CO+%28sub+2%29+distribution+in+reservoir+rocks&rft.au=Perrin%2C+Jean-Christophe%3BBenson%2C+Sally&rft.aulast=Perrin&rft.aufirst=Jean-Christophe&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=93&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9426-x L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; brines; buoyancy; carbon dioxide; depletion; distribution; experimental studies; ground water; heterogeneous materials; injection; monitoring; pollution; porosity; porous materials; preferential flow; reservoir properties; reservoir rocks; saline composition; saturation; three-dimensional models; two-phase models DO - http://dx.doi.org/10.1007/s11242-009-9426-x ER - TY - JOUR T1 - Impact of CO (sub 2) injection on flow behavior of coalbed methane reservoirs AN - 742901947; 2010-041629 AB - On the basis of observations at four enhanced coalbed methane (ECBM)/CO (sub 2) sequestration pilots, a laboratory-scale study was conducted to understand the flow behavior of coal in a methane/CO (sub 2) environment. Sorption-induced volumetric strain was first measured by flooding fresh coal samples with adsorptive gases (methane and CO (sub 2) ). In order to replicate the CO (sub 2) -ECBM process, CO (sub 2) was then injected into a methane-saturated core to measure the incremental "swelling." As a separate effort, the permeability of a coal core, held under triaxial stress, was measured using methane. This was followed by CO (sub 2) flooding to replace the methane. In order to best replicate the conditions in situ, the core was held under uniaxial strain, that is, no horizontal strain was permitted during CO (sub 2) flooding. Instead, the horizontal stress was adjusted to ensure zero strain. The results showed that the relative strain ratio for CO (sub 2) /methane was between 2 and 3.5. The measured volumetric strains were also fitted using a Langmuir-type model, thus enabling calculation of the strain at any gas pressure and using the analytical permeability models. For permeability work, effort was made to increase the horizontal stress to achieve the desired zero horizontal strain condition expected under in situ condition, but this became impossible because the "excess" stress required to maintain this condition was very large, resulting in sample failure. Finally, when CO (sub 2) was introduced and horizontal strain was permitted, permeability reduction was an order of magnitude greater, suggesting that the "excess" stress would have reduced it significantly further. The positive finding of the work was that the "excess" stresses associated with injection of CO (sub 2) are large. The excess stresses generated might be sufficient to cause microfracturing and increased permeability, and improved injectivity. Also, there might be a weakening effect resulting from repeated CO (sub 2) injection, as has been found to be the case with thermal cycling of rocks. Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Harpalani, Satya AU - Mitra, Abhijit A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 141 EP - 156 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - United States KW - Illinois Basin KW - carbon sequestration KW - natural gas KW - injection KW - porous materials KW - petroleum KW - mathematical models KW - storage coefficient KW - coal seams KW - preferential flow KW - rock mechanics KW - reservoir rocks KW - carbon dioxide KW - transport KW - coalbed methane KW - San Juan Basin KW - discharge KW - underground disposal KW - permeability KW - 30:Engineering geology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742901947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Impact+of+CO+%28sub+2%29+injection+on+flow+behavior+of+coalbed+methane+reservoirs&rft.au=Harpalani%2C+Satya%3BMitra%2C+Abhijit&rft.aulast=Harpalani&rft.aufirst=Satya&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=141&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9475-1 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 17 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbon sequestration; coal seams; coalbed methane; discharge; Illinois Basin; injection; mathematical models; natural gas; permeability; petroleum; porous materials; preferential flow; reservoir rocks; rock mechanics; San Juan Basin; storage coefficient; transport; underground disposal; United States DO - http://dx.doi.org/10.1007/s11242-009-9475-1 ER - TY - JOUR T1 - Laboratory flow experiments for visualizing carbon dioxide-induced, density-driven brine convection AN - 742901908; 2010-041628 AB - Injection of carbon dioxide (CO (sub 2) ) into saline aquifers confined by low-permeability cap rock will result in a layer of CO (sub 2) overlying the brine. Dissolution of CO (sub 2) into the brine increases the brine density, resulting in an unstable situation in which more-dense brine overlies less-dense brine. This gravitational instability could give rise to density-driven convection of the fluid, which is a favorable process of practical interest for CO (sub 2) storage security because it accelerates the transfer of buoyant CO (sub 2) into the aqueous phase, where it is no longer subject to an upward buoyant drive. Laboratory flow visualization tests in transparent Hele-Shaw cells have been performed to elucidate the processes and rates of this CO (sub 2) solute-driven convection (CSC). Upon introduction of CO (sub 2) into the system, a layer of CO (sub 2) -laden brine forms at the CO (sub 2) -water interface. Subsequently, small convective fingers form, which coalesce, broaden, and penetrate into the test cell. Images and time-series data of finger lengths and wavelengths are presented. Observed CO (sub 2) uptake of the convection system indicates that the CO (sub 2) dissolution rate is approximately constant for each test and is far greater than expected for a diffusion-only scenario. Numerical simulations of our system show good agreement with the experiments for onset time of convection and advancement of convective fingers. There are differences as well, the most prominent being the absence of cell-scale convection in the numerical simulations. This cell-scale convection observed in the experiments may be an artifact of a small temperature gradient induced by the cell illumination. Copyright 2010 Springer Science+Business Media B.V. and 2009 The Author(s) JF - Transport in Porous Media AU - Kneafsey, Timothy J AU - Pruess, Karsten A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 123 EP - 139 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - experimental studies KW - carbon sequestration KW - numerical models KW - injection KW - pollution KW - porous materials KW - mathematical models KW - storage coefficient KW - preferential flow KW - convection KW - simulation KW - carbon dioxide KW - visualization KW - laboratory studies KW - transport KW - brines KW - discharge KW - underground disposal KW - diffusivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742901908?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Laboratory+flow+experiments+for+visualizing+carbon+dioxide-induced%2C+density-driven+brine+convection&rft.au=Kneafsey%2C+Timothy+J%3BPruess%2C+Karsten&rft.aulast=Kneafsey&rft.aufirst=Timothy&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=123&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9482-2 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 20 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - brines; carbon dioxide; carbon sequestration; convection; diffusivity; discharge; experimental studies; injection; laboratory studies; mathematical models; numerical models; pollution; porous materials; preferential flow; simulation; storage coefficient; transport; underground disposal; visualization DO - http://dx.doi.org/10.1007/s11242-009-9482-2 ER - TY - JOUR T1 - Effect of vertical heterogeneity on long-term migration of CO (sub 2) in saline formations AN - 742901871; 2010-041623 AB - For deep injection of CO (sub 2) in thick saline formations, the movements of both the free gas phase and dissolved CO (sub 2) are sensitive to variations in vertical permeability. A simple model for vertical heterogeneity was studied, consisting of a random distribution of horizontal impermeable barriers with a given overall volume fraction and distribution of lengths. Analytical results were obtained for the distribution of values for the permeability, and compared to numerical simulations of deep CO (sub 2) injection and convection in heterogeneous formations, using multiple realizations for the permeability distribution. It is shown that for a formation of thickness H, the breakthrough times in two dimensions for deep injection scale as H (super 2) for moderate injection rates. In comparison to heterogeneous shale distributions, a homogeneous medium with equivalent effective vertical permeability has a longer breakthrough time for deep injection, and a longer onset time for convection. Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Green, Christopher P AU - Ennis-King, Jonathan A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 31 EP - 47 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - contaminant plumes KW - vertical permeability KW - storage coefficient KW - simulation KW - reservoir rocks KW - ground water KW - carbon dioxide KW - buoyancy KW - spatial distribution KW - sedimentary rocks KW - transport KW - discharge KW - saline composition KW - carbon sequestration KW - numerical models KW - gaseous phase KW - shale KW - injection KW - pollution KW - rates KW - porous materials KW - mathematical models KW - migration of elements KW - convection KW - two-dimensional models KW - aquifers KW - saturation KW - clastic rocks KW - underground disposal KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742901871?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Effect+of+vertical+heterogeneity+on+long-term+migration+of+CO+%28sub+2%29+in+saline+formations&rft.au=Green%2C+Christopher+P%3BEnnis-King%2C+Jonathan&rft.aulast=Green&rft.aufirst=Christopher&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=31&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9498-7 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 16 N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; buoyancy; carbon dioxide; carbon sequestration; clastic rocks; contaminant plumes; convection; discharge; gaseous phase; ground water; injection; mathematical models; migration of elements; numerical models; permeability; pollution; porous materials; rates; reservoir rocks; saline composition; saturation; sedimentary rocks; shale; simulation; spatial distribution; storage coefficient; transport; two-dimensional models; underground disposal; vertical permeability DO - http://dx.doi.org/10.1007/s11242-009-9498-7 ER - TY - JOUR T1 - The footprint of the CO (sub 2) plume during carbon dioxide storage in saline aquifers; storage efficiency for capillary trapping at the basin scale AN - 742901800; 2010-041622 AB - We study a sharp-interface mathematical model of CO (sub 2) migration in deep saline aquifers, which accounts for gravity override, capillary trapping, natural groundwater flow, and the shape of the plume during the injection period. The model leads to a nonlinear advection-diffusion equation, where the diffusive term is due to buoyancy forces, not physical diffusion. For the case of interest in geological CO (sub 2) storage, in which the mobility ratio is very unfavorable, the mathematical model can be simplified to a hyperbolic equation. We present a complete analytical solution to the hyperbolic model. The main outcome is a closed-form expression that predicts the ultimate footprint on the CO (sub 2) plume, and the time scale required for complete trapping. The capillary trapping coefficient and the mobility ratio between CO (sub 2) and brine emerge as the key parameters in the assessment of CO (sub 2) storage in saline aquifers. Despite the many approximations, the model captures the essence of the flow dynamics and therefore reflects proper dependencies on the mobility ratio and the capillary trapping coefficient, which are basin-specific. The expressions derived here have applicability to capacity estimates by capillary trapping at the basin scale. Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Juanes, Ruben AU - MacMinn, Christopher W AU - Szulczewski, Michael L A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 19 EP - 30 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - hysteresis KW - contaminant plumes KW - sedimentary basins KW - carbon footprint KW - injection KW - pollution KW - mathematical models KW - capillarity KW - storage coefficient KW - migration of elements KW - preferential flow KW - reservoir rocks KW - ground water KW - carbon dioxide KW - aquifers KW - physical properties KW - brines KW - traps KW - basins KW - saline composition KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742901800?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=The+footprint+of+the+CO+%28sub+2%29+plume+during+carbon+dioxide+storage+in+saline+aquifers%3B+storage+efficiency+for+capillary+trapping+at+the+basin+scale&rft.au=Juanes%2C+Ruben%3BMacMinn%2C+Christopher+W%3BSzulczewski%2C+Michael+L&rft.aulast=Juanes&rft.aufirst=Ruben&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=19&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9420-3 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 33 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquifers; basins; brines; capillarity; carbon dioxide; carbon footprint; contaminant plumes; ground water; hysteresis; injection; mathematical models; migration of elements; physical properties; pollution; preferential flow; reservoir rocks; saline composition; sedimentary basins; storage coefficient; traps DO - http://dx.doi.org/10.1007/s11242-009-9420-3 ER - TY - JOUR T1 - Numerical simulations of the thermal impact of supercritical CO (sub 2) injection on chemical reactivity in a carbonate saline reservoir AN - 742900762; 2010-041634 AB - Geological sequestration of CO (sub 2) offers a promising solution for reducing net emissions of greenhouse gases into the atmosphere. This emerging technology must make it possible to inject CO (sub 2) into deep saline aquifers or oil- and gas-depleted reservoirs in the supercritical state (P>7.4 MPa and T>31.1 degrees C) to achieve a higher density and therefore occupy less volume underground. Previous experimental and numerical simulations have demonstrated that massive CO (sub 2) injection in saline reservoirs causes a major disequilibrium of the physical and geochemical characteristics of the host aquifer. The near-well injection zone seems to constitute an underground hydrogeological system particularly impacted by supercritical CO (sub 2) injection and the most sensitive area, where chemical phenomena (e.g. mineral dissolution/precipitation) can have a major impact on the porosity and permeability. Furthermore, these phenomena are highly sensitive to temperature. This study, based on numerical multi-phase simulations, investigates thermal effects during CO (sub 2) injection into a deep carbonate formation. Different thermal processes and their influence on the chemical and mineral reactivity of the saline reservoir are discussed. This study underlines both the minor effects of intrinsic thermal and thermodynamic processes on mineral reactivity in carbonate aquifers, and the influence of anthropic thermal processes (e.g. injection temperature) on the carbonates' behaviour. Copyright 2009 Springer Science+Business Media B.V. JF - Transport in Porous Media AU - Andre, Laurent AU - Azaroual, Mohamed AU - Menjoz, Andre A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 247 EP - 274 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - numerical models KW - thermal properties KW - injection KW - pollution KW - coupling KW - simulation KW - two-dimensional models KW - carbon dioxide KW - reactivity KW - sedimentary rocks KW - saturation KW - chemical properties KW - reservoir properties KW - carbonate rocks KW - kinetics KW - carbonates KW - saline composition KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742900762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Numerical+simulations+of+the+thermal+impact+of+supercritical+CO+%28sub+2%29+injection+on+chemical+reactivity+in+a+carbonate+saline+reservoir&rft.au=Andre%2C+Laurent%3BAzaroual%2C+Mohamed%3BMenjoz%2C+Andre&rft.aulast=Andre&rft.aufirst=Laurent&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=247&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9474-2 L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 48 N1 - Document feature - illus. incl. 4 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - carbon dioxide; carbonate rocks; carbonates; chemical properties; coupling; injection; kinetics; numerical models; pollution; reactivity; reservoir properties; saline composition; saturation; sedimentary rocks; simulation; thermal properties; two-dimensional models DO - http://dx.doi.org/10.1007/s11242-009-9474-2 ER - TY - JOUR T1 - Modeling gas transport in the shallow subsurface during the ZERT CO (sub 2) release test AN - 742900733; 2010-041625 AB - We used the multiphase and multicomponent TOUGH2/EOS7CA model to carry out predictive simulations of CO (sub 2) injection into the shallow subsurface of an agricultural field in Bozeman, Montana. The purpose of the simulations was to inform the choice of CO (sub 2) injection rate and design of monitoring and detection activities for a CO (sub 2) release experiment. The release experiment configuration consists of a long horizontal well (70 m) installed at a depth of approximately 2.5 m into which CO (sub 2) is injected to mimic leakage from a geologic carbon sequestration site through a linear feature such as a fault. We estimated the permeability of the soil and cobble layers present at the site by manual inversion of measurements of soil CO (sub 2) flux from a vertical-well CO (sub 2) release. Based on these estimated permeability values, predictive simulations for the horizontal well showed that CO (sub 2) injection just below the water table creates an effective gas-flow pathway through the saturated zone up to the unsaturated zone. Once in the unsaturated zone, CO (sub 2) spreads out laterally within the cobble layer, where liquid saturation is relatively low. CO (sub 2) also migrates upward into the soil layer through the capillary barrier and seeps out at the ground surface. The simulations predicted a breakthrough time of approximately two days for the 100 kg d (super -1) injection rate, which also produced a flux within the range desired for testing detection and monitoring approaches. The seepage area produced by the model was approximately five meters wide above the horizontal well, compatible with the detection and monitoring methods tested. For a given flow rate, gas-phase diffusion of CO (sub 2) tends to dominate over advection near the ground surface, where the CO (sub 2) concentration gradient is large, while advection dominates deeper in the system. Copyright 2010 Springer Science+Business Media B.V. and 2009 US Government 2009 JF - Transport in Porous Media AU - Oldenburg, Curtis M AU - Lewicki, Jennifer L AU - Dobeck, Laura AU - Spangler, Lee A2 - Oldenburg, Curtis M. Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 77 EP - 92 PB - Springer, Dordrecht VL - 82 IS - 1 SN - 0169-3913, 0169-3913 KW - United States KW - TOUGH2 KW - Gallatin County Montana KW - simulation KW - seepage KW - reservoir rocks KW - carbon dioxide KW - saturated zone KW - transport KW - leaky aquifers KW - diffusivity KW - concentration KW - carbon sequestration KW - gaseous phase KW - injection KW - pollution KW - boundary conditions KW - Montana KW - Bozeman Montana KW - models KW - computer programs KW - detection KW - multiphase flow KW - testing KW - permeability KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742900733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Transport+in+Porous+Media&rft.atitle=Modeling+gas+transport+in+the+shallow+subsurface+during+the+ZERT+CO+%28sub+2%29+release+test&rft.au=Oldenburg%2C+Curtis+M%3BLewicki%2C+Jennifer+L%3BDobeck%2C+Laura%3BSpangler%2C+Lee&rft.aulast=Oldenburg&rft.aufirst=Curtis&rft.date=2010-03-01&rft.volume=82&rft.issue=1&rft.spage=77&rft.isbn=&rft.btitle=&rft.title=Transport+in+Porous+Media&rft.issn=01693913&rft_id=info:doi/10.1007%2Fs11242-009-9361-x L2 - http://springerlink.metapress.com/(l4tqdq55jga2hgb0achos1qm)/app/home/journal.asp?referrer=parent&backto=linkingpublicationresults,1:100342,1 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2010-01-01 N1 - Number of references - 23 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boundary conditions; Bozeman Montana; carbon dioxide; carbon sequestration; computer programs; concentration; detection; diffusivity; Gallatin County Montana; gaseous phase; injection; leaky aquifers; models; Montana; multiphase flow; permeability; pollution; reservoir rocks; saturated zone; seepage; simulation; testing; TOUGH2; transport; United States DO - http://dx.doi.org/10.1007/s11242-009-9361-x ER - TY - JOUR T1 - Overexpression of RAD51 suppresses recombination defects: a possible mechanism to reverse genomic instability. AN - 733524241; 19942681 AB - RAD51, a key protein in the homologous recombinational DNA repair (HRR) pathway, is the major strand-transferase required for mitotic recombination. An important early step in HRR is the formation of single-stranded DNA (ss-DNA) coated by RPA (a ss-DNA-binding protein). Displacement of RPA by RAD51 is highly regulated and facilitated by a number of different proteins known as the 'recombination mediators'. To assist these recombination mediators, a second group of proteins also is required and we are defining these proteins here as 'recombination co-mediators'. Defects in either recombination mediators or co-mediators, including BRCA1 and BRCA2, lead to impaired HRR that can genetically be complemented for (i.e. suppressed) by overexpression of RAD51. Defects in HRR have long been known to contribute to genomic instability leading to tumor development. Since genomic instability also slows cell growth, precancerous cells presumably require genomic re-stabilization to gain a growth advantage. RAD51 is overexpressed in many tumors, and therefore, we hypothesize that the complementing ability of elevated levels of RAD51 in tumors with initial HRR defects limits genomic instability during carcinogenic progression. Of particular interest, this model may also help explain the high frequency of TP53 mutations in human cancers, since wild-type p53 represses RAD51 expression. JF - Nucleic acids research AU - Schild, David AU - Wiese, Claudia AD - Life Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA. dschild@lbl.gov Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 1061 EP - 1070 VL - 38 IS - 4 KW - Rad51 Recombinase KW - EC 2.7.7.- KW - Index Medicus KW - Animals KW - Genes, p53 KW - Models, Genetic KW - Humans KW - Mutation KW - Rad51 Recombinase -- metabolism KW - DNA Repair KW - Genomic Instability KW - Recombination, Genetic KW - Neoplasms -- genetics KW - Neoplasms -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733524241?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nucleic+acids+research&rft.atitle=Overexpression+of+RAD51+suppresses+recombination+defects%3A+a+possible+mechanism+to+reverse+genomic+instability.&rft.au=Schild%2C+David%3BWiese%2C+Claudia&rft.aulast=Schild&rft.aufirst=David&rft.date=2010-03-01&rft.volume=38&rft.issue=4&rft.spage=1061&rft.isbn=&rft.btitle=&rft.title=Nucleic+acids+research&rft.issn=1362-4962&rft_id=info:doi/10.1093%2Fnar%2Fgkp1063 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-04-02 N1 - Date created - 2010-03-01 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Cell. 2009 Mar 6;136(5):823-37 [19269363] J Biol Chem. 2009 Mar 27;284(13):8265-73 [19182269] Annu Rev Pathol. 2009;4:461-87 [18954285] Science. 2009 May 1;324(5927):602-3 [19407191] Proc Natl Acad Sci U S A. 2009 Apr 28;106(17):7155-60 [19369211] Biochemistry. 2009 Jul 21;48(28):6633-43 [19530647] Mol Cancer Res. 2009 Jul;7(7):1110-8 [19584259] Mol Cancer Res. 2009 Aug;7(8):1304-9 [19671671] Proc Natl Acad Sci U S A. 2009 Aug 11;106(32):13254-9 [19628690] Nat Rev Cancer. 2009 Oct;9(10):701-13 [19693097] PLoS Genet. 2009 Oct;5(10):e1000680 [19816568] J Biol Chem. 2009 Nov 27;284(48):33275-84 [19812039] EMBO Rep. 2006 Feb;7(2):219-24 [16322760] Cancer Res. 2006 Feb 15;66(4):2012-8 [16489000] Oncogene. 2006 Feb 23;25(8):1186-94 [16205630] Nucleic Acids Res. 2006;34(5):1358-68 [16522646] Br J Surg. 2006 Apr;93(4):395-406 [16555243] Cell Death Differ. 2006 Jun;13(6):1003-16 [16543940] EMBO J. 2006 Jun 7;25(11):2564-74 [16710300] Genes Dev. 1999 Oct 15;13(20):2633-8 [10541549] Cell. 2000 Jan 7;100(1):57-70 [10647931] Am J Pathol. 2000 May;156(5):1767-71 [10793087] Mol Cell Biol. 2000 Sep;20(17):6476-82 [10938124] Mol Cell Biol. 2001 Apr;21(8):2858-66 [11283264] Am J Pathol. 2001 Apr;158(4):1517-24 [11290569] Exp Cell Res. 2001 Aug 1;268(1):61-9 [11461118] Mol Cell. 2001 Oct;8(4):795-806 [11684015] Nucleic Acids Res. 2001 Nov 1;29(21):4352-60 [11691922] Genes Dev. 2001 Dec 15;15(24):3308-18 [11751636] J Biol Chem. 2003 Oct 31;278(44):42729-32 [12912992] Cancer Res. 2003 Nov 1;63(21):7377-83 [14612536] Mol Cell Biol. 2004 Jan;24(2):708-18 [14701743] Oncogene. 2004 Jan 15;23(2):546-53 [14724582] World J Gastroenterol. 2004 Feb 15;10(4):509-13 [14966907] Philos Trans R Soc Lond B Biol Sci. 2004 Jan 29;359(1441):87-93 [15065660] J Cell Biochem. 2004 Oct 15;93(3):429-36 [15372620] Proc Natl Acad Sci U S A. 1995 Jul 18;92(15):6925-9 [7624345] Genetics. 1995 May;140(1):115-27 [7635279] Mol Cell Biol. 1995 Sep;15(9):4843-50 [7651402] Nucleic Acids Res. 1997 Oct 1;25(19):3868-74 [9380510] Nucleic Acids Res. 1998 Jun 15;26(12):2859-64 [9611228] Cancer Res. 2005 Mar 15;65(6):2089-96 [15781618] Nucleic Acids Res. 2005;33(14):4544-52 [16093548] Eur J Gynaecol Oncol. 2005;26(6):589-98 [16398215] EMBO J. 2006 Jan 11;25(1):222-31 [16395335] Cell Cycle. 2006 May;5(10):1062-5 [16721049] Mol Cell. 2006 Jun 23;22(6):719-29 [16793542] Mutat Res. 2006 Aug 30;600(1-2):79-88 [16643964] Nat Rev Mol Cell Biol. 2006 Oct;7(10):739-50 [16926856] Mutat Res. 2006 Oct 10;601(1-2):113-24 [16920159] Cancer Cell. 2006 Dec;10(6):515-27 [17157791] Cancer Cell. 2007 Feb;11(2):103-5 [17292821] Cancer Lett. 2007 Apr 8;248(1):1-17 [16854521] Mol Cancer Ther. 2007 May;6(5):1650-60 [17513613] Mol Cell Biol. 2007 Oct;27(19):6733-41 [17664283] Cancer Res. 2007 Oct 15;67(20):9658-65 [17942895] Mol Cell. 2007 Nov 9;28(3):468-81 [17996710] Mol Cell. 2007 Nov 9;28(3):482-90 [17996711] Am J Hum Genet. 2007 Dec;81(6):1186-200 [17999359] Science. 2007 Nov 16;318(5853):1108-13 [17932254] Cancer Res. 2008 Jan 15;68(2):605-14 [18199558] Nat Rev Cancer. 2008 Mar;8(3):180-92 [18273037] Cell. 2008 Mar 21;132(6):919-20 [18358803] Cancer Res. 2008 Apr 15;68(8):2699-707 [18413737] DNA Repair (Amst). 2008 May 3;7(5):686-93 [18243065] Annu Rev Biochem. 2008;77:229-57 [18275380] Curr Opin Pharmacol. 2008 Aug;8(4):363-9 [18644251] DNA Repair (Amst). 2009 Feb 1;8(2):170-81 [18992372] Mol Cancer Ther. 2009 Jan;8(1):203-13 [19139130] Mol Carcinog. 2009 Feb;48(2):105-9 [18618591] N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1093/nar/gkp1063 ER - TY - JOUR T1 - Functional Genomic Study of Exogenous n-Butanol Stress in Escherichia coli , , AN - 21319979; 12496185 AB - n-Butanol has been proposed as an alternative biofuel to ethanol, and several industrially used microbes, including Escherichia coli, have been engineered to produce it. Unfortunately, n-butanol is more toxic than ethanol to these organisms. To understand the basis for its toxicity, cell-wide studies were conducted at the transcript, protein, and metabolite levels to obtain a global view of the n-butanol stress response. Analysis of the data indicates that n-butanol stress has components common to other stress responses, including perturbation of respiratory functions (nuo and cyo operons), oxidative stress (sodA, sodC, and yqhD), heat shock and cell envelope stress (rpoE, clpB, htpG, cpxR, and cpxP), and metabolite transport and biosynthesis (malE and opp operon). Assays using fluorescent dyes indicated a large increase in reactive oxygen species during n-butanol stress, confirming observations from the microarray and proteomics measurements. Mutant strains with mutations in several genes whose products changed most dramatically during n-butanol stress were examined for increased sensitivity to n-butanol. Results from these analyses allowed identification of key genes that were recruited to alleviate oxidative stress, protein misfolding, and other causes of growth defects. Cellular engineering based on these cues may assist in developing a high-titer, n-butanol-producing host. JF - Applied and Environmental Microbiology AU - Rutherford, Becky J AU - Dahl, Robert H AU - Price, Richard E AU - Szmidt, Heather L AU - Benke, Peter I AU - Mukhopadhyay, Aindrila AU - Keasling, Jay D AD - Department of Chemical Engineering, University of California, Berkeley, California 94720, amukhopadhyay@lbl.gov Y1 - 2010/03// PY - 2010 DA - Mar 2010 SP - 1935 EP - 1945 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 76 IS - 6 SN - 0099-2240, 0099-2240 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Biofuels KW - Oxidative stress KW - Escherichia coli KW - A 01340:Antibiotics & Antimicrobials KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21319979?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Functional+Genomic+Study+of+Exogenous+n-Butanol+Stress+in+Escherichia+coli+%2C+%2C&rft.au=Rutherford%2C+Becky+J%3BDahl%2C+Robert+H%3BPrice%2C+Richard+E%3BSzmidt%2C+Heather+L%3BBenke%2C+Peter+I%3BMukhopadhyay%2C+Aindrila%3BKeasling%2C+Jay+D&rft.aulast=Rutherford&rft.aufirst=Becky&rft.date=2010-03-01&rft.volume=76&rft.issue=6&rft.spage=1935&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/10.1128%2FAEM.02323-09 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Oxidative stress; Escherichia coli DO - http://dx.doi.org/10.1128/AEM.02323-09 ER - TY - JOUR T1 - Effects of physical and geochemical heterogeneities on mineral transformation and biomass accumulation during biostimulation experiments at Rifle, Colorado AN - 1770303153; 13018844 AB - Electron donor amendment for bioremediation often results in precipitation of secondary minerals and the growth of biomass, both of which can potentially change flow paths and the efficacy of bioremediation. Quantitative estimation of precipitate and biomass distribution has remained challenging, partly due to the intrinsic heterogeneities of natural porous media and the scarcity of field data. In this work, we examine the effects of physical and geochemical heterogeneities on the spatial distributions of mineral precipitates and biomass accumulated during a biostimulation field experiment near Rifle, Colorado. Field bromide breakthrough data were used to infer a heterogeneous distribution of hydraulic conductivity through inverse transport modeling, while the solid phase Fe(III) content was determined by assuming a negative correlation with hydraulic conductivity. Validated by field aqueous geochemical data, reactive transport modeling was used to explicitly keep track of the growth of the biomass and to estimate the spatial distribution of precipitates and biomass. The results show that the maximum mineral precipitation and biomass accumulation occurs in the vicinity of the injection wells, occupying up to 5.4vol.% of the pore space, and is dominated by reaction products of sulfate reduction. Accumulation near the injection wells is not strongly affected by heterogeneities present in the system due to the ubiquitous presence of sulfate in the groundwater. However, accumulation in the down-gradient regions is dominated by the iron-reducing reaction products, whose spatial patterns are strongly controlled by both physical and geochemical heterogeneities. Heterogeneities can lead to localized large accumulation of mineral precipitates and biomass, increasing the possibility of pore clogging. Although ignoring the heterogeneities of the system can lead to adequate prediction of the average behavior of sulfate-reducing related products, it can also lead to an overestimation of the overall accumulation of iron-reducing bacteria, as well as the rate and extent of iron reduction. Surprisingly, the model predicts that the total amount of uranium being reduced in the heterogeneous 2D system was similar to that in the 1D homogeneous system, suggesting that the overall uranium bioremediation efficacy may not be significantly affected by the heterogeneities of Fe(III) content in the down-gradient regions. Rather, the characteristics close to the vicinity of the injection wells might be crucial in determining the overall efficacy of uranium bioremediation. These findings have important implications not only for uranium bioremediation at the Rifle site and for bioremediation of other redox sensitive contaminants at sites with similar characteristics, but also for the development of optimal amendment delivery strategies in other settings. JF - Journal of Contaminant Hydrology AU - Li, Li AU - Steefel, Carl I AU - Kowalsky, Michael B AU - Englert, Andreas AU - Hubbard, Susan S AD - Lawrence Berkeley National Laboratory, Earth Sciences Division, 1 Cyclotron Road, MS 90-1116, Berkeley, CA 94720, United States lili@eme.psu.edu Y1 - 2010/03/01/ PY - 2010 DA - 2010 Mar 01 SP - 45 EP - 63 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 112 IS - 1-4 SN - 0169-7722, 0169-7722 KW - Environmental Engineering Abstracts (EN); CSA / ASCE Civil Engineering Abstracts (CE) KW - Uranium bioremediation KW - Heterogeneity KW - Mineral transformation KW - Biomass accumulation KW - Reactive transport modeling KW - Biogeochemical process KW - Mathematical models KW - Bioremediation KW - Uranium KW - Precipitates KW - Precipitation KW - Biomass KW - Minerals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1770303153?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Contaminant+Hydrology&rft.atitle=Effects+of+physical+and+geochemical+heterogeneities+on+mineral+transformation+and+biomass+accumulation+during+biostimulation+experiments+at+Rifle%2C+Colorado&rft.au=Li%2C+Li%3BSteefel%2C+Carl+I%3BKowalsky%2C+Michael+B%3BEnglert%2C+Andreas%3BHubbard%2C+Susan+S&rft.aulast=Li&rft.aufirst=Li&rft.date=2010-03-01&rft.volume=112&rft.issue=1-4&rft.spage=45&rft.isbn=&rft.btitle=&rft.title=Journal+of+Contaminant+Hydrology&rft.issn=01697722&rft_id=info:doi/10.1016%2Fj.jconhyd.2009.10.006 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2013-01-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jconhyd.2009.10.006 ER - TY - JOUR T1 - Motional modes of dilatational waves in elastic porous media containing two immiscible fluids AN - 1328503835; 2013-034347 AB - Numerical simulations of dilatational waves in an elastic porous medium containing two immiscible viscous compressible fluids indicate that three types of wave occur, but the modes of dilatory motion corresponding to the three waves remain uncharacterized as functions of relative saturation. In the present paper, we address this problem by deriving normal coordinates for the three dilatational waves based on the general poroelasticity equations of Lo et al. 2005 [13]. The normal coordinates provide a theoretical foundation with which to characterize the motional modes in terms of six connecting coefficients that depend in a well defined way on inertial drag, viscous drag, and elasticity properties. Using numerical calculations of the connecting coefficients in the seismic frequency range for an unconsolidated sand containing water and air as a representative example relevant to hydrologic applications, we confirm that the dilatational wave whose speed is greatest corresponds to the motional mode in which the solid framework and the two pore fluids always move in phase, regardless of water saturation, in agreement with the classic Biot theory of the fast compressional wave in a water-saturated porous medium. For the wave which propagates second fastest, we show, apparently for the first time, that the solid framework moves in phase with water, but out of phase with air [Mode (III)], if the water saturation is below about 0.8, whereas the solid framework moves out of phase with both pore fluids [Mode (IV)] above this water saturation. The transition from Mode (III) to Mode (IV) corresponds to that between the capillarity-dominated region of the water retention curve and the region reflecting air-entry conditions near full water saturation. The second of the two modes corresponds exactly to the slow compressional wave in classic Biot theory, whereas the first mode is possible only in a two-fluid system undergoing capillary pressure fluctuations. For the wave which has the smallest speed, the dilatational mode is dominated by the motions of the two pore fluids, which are always out of phase, a result that is consistent with the proposition that this wave is caused by capillary pressure fluctuations. Abstract Copyright (2010) Elsevier, B.V. JF - Advances in Water Resources AU - Lo, Wei-Cheng AU - Sposito, Garrison AU - Majer, Ernest AU - Yeh, Chao-Lung Y1 - 2010/03// PY - 2010 DA - March 2010 SP - 304 EP - 311 PB - Elsevier, Oxford VL - 33 IS - 3 SN - 0309-1708, 0309-1708 KW - P-waves KW - capillary pressure KW - elastic properties KW - elastic waves KW - fluid dynamics KW - simulation KW - saturated zone KW - Biot theory KW - mixing KW - sediments KW - retention KW - compressibility KW - hydrology KW - sand KW - body waves KW - elasticity KW - numerical models KW - clastic sediments KW - waves KW - poroelasticity KW - porous materials KW - capillarity KW - equations KW - elastic materials KW - fluctuations KW - viscosity KW - saturation KW - immiscibility KW - shear KW - unconsolidated materials KW - seismic waves KW - dilation KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1328503835?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Advances+in+Water+Resources&rft.atitle=Motional+modes+of+dilatational+waves+in+elastic+porous+media+containing+two+immiscible+fluids&rft.au=Lo%2C+Wei-Cheng%3BSposito%2C+Garrison%3BMajer%2C+Ernest%3BYeh%2C+Chao-Lung&rft.aulast=Lo&rft.aufirst=Wei-Cheng&rft.date=2010-03-01&rft.volume=33&rft.issue=3&rft.spage=304&rft.isbn=&rft.btitle=&rft.title=Advances+in+Water+Resources&rft.issn=03091708&rft_id=info:doi/10.1016%2Fj.advwatres.2009.12.007 L2 - http://www.sciencedirect.com/science/journal/03091708 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2013-01-01 N1 - Number of references - 27 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2013-04-19 N1 - SubjectsTermNotLitGenreText - Biot theory; body waves; capillarity; capillary pressure; clastic sediments; compressibility; dilation; elastic materials; elastic properties; elastic waves; elasticity; equations; fluctuations; fluid dynamics; hydrology; immiscibility; mixing; numerical models; P-waves; poroelasticity; porous materials; retention; sand; saturated zone; saturation; sediments; seismic waves; shear; simulation; unconsolidated materials; viscosity; waves DO - http://dx.doi.org/10.1016/j.advwatres.2009.12.007 ER - TY - CPAPER T1 - The Architectural Requriements driving Language Evolution T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42356911; 5656735 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Shalf, John AU - Koniges, Alice Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - Language KW - Evolution KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42356911?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=The+Architectural+Requriements+driving+Language+Evolution&rft.au=Shalf%2C+John%3BKoniges%2C+Alice&rft.aulast=Shalf&rft.aufirst=John&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Partitioning, Load Balancing, and Matrix Ordering in a Parallel Hybrid Solver T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42353105; 5656733 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Yamazaki, Ichitaro AU - Li, Sherry AU - Ng, Esmond Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - Hybrids KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42353105?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Partitioning%2C+Load+Balancing%2C+and+Matrix+Ordering+in+a+Parallel+Hybrid+Solver&rft.au=Yamazaki%2C+Ichitaro%3BLi%2C+Sherry%3BNg%2C+Esmond&rft.aulast=Yamazaki&rft.aufirst=Ichitaro&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Parallel Motifs as Paradigms for Comparing Language Performance T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42350694; 5656737 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Strohmaier, Eric Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - Language KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42350694?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Parallel+Motifs+as+Paradigms+for+Comparing+Language+Performance&rft.au=Strohmaier%2C+Eric&rft.aulast=Strohmaier&rft.aufirst=Eric&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Memory-Efficient Optimization of Gyrokinetic Particle-to-Grid Interpolation for Multicore Processors T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42345517; 5656535 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Williams, Samuel AU - Madduri, Kamesh AU - Ethier, Stephane AU - Oliker, Leonid AU - Shalf, John AU - Strohmaier, Eric AU - Yelick, Katherine Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - Particulates KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42345517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Memory-Efficient+Optimization+of+Gyrokinetic+Particle-to-Grid+Interpolation+for+Multicore+Processors&rft.au=Williams%2C+Samuel%3BMadduri%2C+Kamesh%3BEthier%2C+Stephane%3BOliker%2C+Leonid%3BShalf%2C+John%3BStrohmaier%2C+Eric%3BYelick%2C+Katherine&rft.aulast=Williams&rft.aufirst=Samuel&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Software Sustainability in The DOE ACTS Collection T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42345482; 5656514 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Drummond, Leroy Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - Sustainability KW - Computer programs KW - Software KW - Resource management KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42345482?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Software+Sustainability+in+The+DOE+ACTS+Collection&rft.au=Drummond%2C+Leroy&rft.aulast=Drummond&rft.aufirst=Leroy&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Getting Multicore Performance with UPC T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42342587; 5656700 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Zheng, Yili AU - Blagojevic, Filip AU - Bonachea, Dan AU - Hargrove, Paul AU - Hofmeyr, Steven AU - Iancu, Costin AU - Min, Seung-Jai AU - Nishtala, Rajesh AU - Yelick, Katherine Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42342587?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Getting+Multicore+Performance+with+UPC&rft.au=Zheng%2C+Yili%3BBlagojevic%2C+Filip%3BBonachea%2C+Dan%3BHargrove%2C+Paul%3BHofmeyr%2C+Steven%3BIancu%2C+Costin%3BMin%2C+Seung-Jai%3BNishtala%2C+Rajesh%3BYelick%2C+Katherine&rft.aulast=Zheng&rft.aufirst=Yili&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - High-performance Adaptive Methods for Elliptic PDE T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42342427; 5656506 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Colella, Phillip AU - Van Straalen, Brian Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42342427?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=High-performance+Adaptive+Methods+for+Elliptic+PDE&rft.au=Colella%2C+Phillip%3BVan+Straalen%2C+Brian&rft.aulast=Colella&rft.aufirst=Phillip&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - A Brief Introduction to BLCR T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42342261; 5656448 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Hargrove, Paul Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42342261?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=A+Brief+Introduction+to+BLCR&rft.au=Hargrove%2C+Paul&rft.aulast=Hargrove&rft.aufirst=Paul&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Parallel Regridding Schemes in the Distributed Coupling Toolkit T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42339794; 5656564 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Drummond, Leroy AU - DeCechis, Dany Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42339794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Parallel+Regridding+Schemes+in+the+Distributed+Coupling+Toolkit&rft.au=Drummond%2C+Leroy%3BDeCechis%2C+Dany&rft.aulast=Drummond&rft.aufirst=Leroy&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Many Core Architectural Challenges for Parallel Computing of Fluids T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42338465; 5656609 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Koniges, Alice Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42338465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Many+Core+Architectural+Challenges+for+Parallel+Computing+of+Fluids&rft.au=Koniges%2C+Alice&rft.aulast=Koniges&rft.aufirst=Alice&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Junior Scientist Prize in Supercomputing: High Performance Computing for Massive Graph Analysis T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42338414; 5656589 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Madduri, Kamesh Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42338414?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Junior+Scientist+Prize+in+Supercomputing%3A+High+Performance+Computing+for+Massive+Graph+Analysis&rft.au=Madduri%2C+Kamesh&rft.aulast=Madduri&rft.aufirst=Kamesh&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Extending Unified Parallel C for GPU Computing T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42338371; 5656452 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Zheng, Yili AU - Iancu, Costin AU - Hargrove, Paul AU - Min, Seung-Jai AU - Yelick, Katherine Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42338371?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Extending+Unified+Parallel+C+for+GPU+Computing&rft.au=Zheng%2C+Yili%3BIancu%2C+Costin%3BHargrove%2C+Paul%3BMin%2C+Seung-Jai%3BYelick%2C+Katherine&rft.aulast=Zheng&rft.aufirst=Yili&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Hierarchical Auto-Tuning of a Hybrid Lattice Boltzmann Computation T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42337420; 5656540 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Oliker, Leonid AU - Williams, Samuel AU - Shalf, John AU - Carter, Jonathan Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - Hybrids KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42337420?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Hierarchical+Auto-Tuning+of+a+Hybrid+Lattice+Boltzmann+Computation&rft.au=Oliker%2C+Leonid%3BWilliams%2C+Samuel%3BShalf%2C+John%3BCarter%2C+Jonathan&rft.aulast=Oliker&rft.aufirst=Leonid&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Parallel Adaptive Simulation of Low Mach Number Flows T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42337334; 5656553 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Almgren, Ann AU - Bell, John AU - Lijewski, Mike AU - Nonaka, Andy AU - Zingale, Mike Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - Simulation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42337334?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Parallel+Adaptive+Simulation+of+Low+Mach+Number+Flows&rft.au=Almgren%2C+Ann%3BBell%2C+John%3BLijewski%2C+Mike%3BNonaka%2C+Andy%3BZingale%2C+Mike&rft.aulast=Almgren&rft.aufirst=Ann&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Scalability Challenges for Massively Parallel AMR Application T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42336803; 5656423 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Van Straalen, Brian AU - Shalf, John AU - Ligocki, Terry AU - Keen, Noel Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42336803?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=Scalability+Challenges+for+Massively+Parallel+AMR+Application&rft.au=Van+Straalen%2C+Brian%3BShalf%2C+John%3BLigocki%2C+Terry%3BKeen%2C+Noel&rft.aulast=Van+Straalen&rft.aufirst=Brian&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The Challenges Ahead for Visualizing and Analyzing Massive Data Sets T2 - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AN - 42336338; 5656682 JF - 2010 SIAM Conference on Parallel Processing and Scientific Computing (PP10) AU - Childs, Hank Y1 - 2010/02/24/ PY - 2010 DA - 2010 Feb 24 KW - Data processing KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42336338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.atitle=The+Challenges+Ahead+for+Visualizing+and+Analyzing+Massive+Data+Sets&rft.au=Childs%2C+Hank&rft.aulast=Childs&rft.aufirst=Hank&rft.date=2010-02-24&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+SIAM+Conference+on+Parallel+Processing+and+Scientific+Computing+%28PP10%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=PP10 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Contaminant Desorption during Long-Term Leaching of Hydroxide-Weathered Hanford Sediments AN - 754543900; 13268794 AB - Mineral sorption/coprecipitation is thought to be a principal sequestration mechanism for radioactive 90Sr and 137Cs in sediments impacted by hyperalkaline, high-level radioactive waste (HLRW) at the DOE's Hanford site. However, the long-term persistence of neo-formed, contaminant bearing phases after removal of the HLRW source is unknown. We subjected pristine Hanford sediments to hyperalkaline Na-Al-NO3-OH solutions containing Sr, Cs, and I at 10-5, 10-5, and 10-7 molal, respectively, for 182 days with either <10 ppmv or 385 ppmv pCO2. This resulted in the formation of feldspathoid minerals. We leached these weathered sediments with dilute, neutral-pH solutions. After 500 pore volumes (PVs), effluent Sr, Cs, NO3, Al, Si, and pH reached a steady-state with concentrations elevated above those of feedwater. Reactive transport modeling suggests that even after 500 PV, Cs desorption can be explained by ion exchange reactions, whereas Sr desorption is best described by dissolution of Sr-substituted, neo-formed minerals. While, pCO2 had no effect on Sr or Cs sorption, sediments weathered at <10 ppmv pCO2 did desorb more Sr (66% vs 28%) and Cs (13% vs 8%) during leaching than those weathered at 385 ppmv pCO2. Thus, the dissolution of neo-formed aluminosilicates may represent a long-term, low-level supply of 90Sr at the Hanford site. JF - Environmental Science & Technology AU - Thompson, Aaron AU - Steefel, Carl I AU - Perdrial, Nicolas AU - Chorover, Jon AD - Department of Soil, Water and Environmental Science, University of Arizona, Tucson, Arizona 85721, and Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 Y1 - 2010/02/22/ PY - 2010 DA - 2010 Feb 22 SP - 1992 EP - 1997 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 44 IS - 6 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Environment Abstracts; Aqualine Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts KW - Coprecipitation KW - Strontium isotopes KW - Pollutants KW - Ion Exchange KW - Sediment Contamination KW - Ion exchange KW - pH KW - Sediment pollution KW - Sorption KW - Desorption KW - Leaching KW - Climate KW - Radioactive wastes KW - Effluents KW - Sediments KW - USA, Washington, Hanford Site KW - USA, Washington, Hanford KW - Radioisotopes KW - Strontium KW - Contaminants KW - Minerals KW - Hazardous wastes KW - Q5 08503:Characteristics, behavior and fate KW - AQ 00007:Industrial Effluents KW - SW 3040:Wastewater treatment processes KW - P 2000:FRESHWATER POLLUTION KW - ENA 02:Toxicology & Environmental Safety UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754543900?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Contaminant+Desorption+during+Long-Term+Leaching+of+Hydroxide-Weathered+Hanford+Sediments&rft.au=Thompson%2C+Aaron%3BSteefel%2C+Carl+I%3BPerdrial%2C+Nicolas%3BChorover%2C+Jon&rft.aulast=Thompson&rft.aufirst=Aaron&rft.date=2010-02-22&rft.volume=44&rft.issue=6&rft.spage=1992&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes902043e L2 - http://pubs.acs.org/doi/abs/10.1021/es902043e LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Sorption; Sediment pollution; Leaching; Climate; Coprecipitation; Radioactive wastes; Effluents; Ion exchange; Strontium isotopes; Desorption; Sediments; Radioisotopes; Strontium; Contaminants; Minerals; Hazardous wastes; pH; Pollutants; Ion Exchange; Sediment Contamination; USA, Washington, Hanford; USA, Washington, Hanford Site DO - http://dx.doi.org/10.1021/es902043e ER - TY - CPAPER T1 - Approaches for Identifi Cation of Nanoporous Materials for co2 Separation T2 - 2010 International Conference On Nanoscience and Nanotechnology (ICONN 2010) AN - 742793640; 5684581 JF - 2010 International Conference On Nanoscience and Nanotechnology (ICONN 2010) AU - Haranczyk, Maciej Y1 - 2010/02/22/ PY - 2010 DA - 2010 Feb 22 KW - Cations KW - Carbon dioxide KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742793640?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+International+Conference+On+Nanoscience+and+Nanotechnology+%28ICONN+2010%29&rft.atitle=Approaches+for+Identifi+Cation+of+Nanoporous+Materials+for+co2+Separation&rft.au=Haranczyk%2C+Maciej&rft.aulast=Haranczyk&rft.aufirst=Maciej&rft.date=2010-02-22&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+International+Conference+On+Nanoscience+and+Nanotechnology+%28ICONN+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ausnano.net/iconn2010/program.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-17 N1 - Last updated - 2010-08-14 ER - TY - JOUR T1 - Thermal instability of Olivine-type LiMnPO sub(4 cathodes) AN - 1777164862; 15122021 AB - The remarkable thermal stability of LiFePO sub(4 and its charged counterpart, FePO) sub(4), have been instrumental in its commercialization as a lithium-ion battery cathode material. Despite the similarity in composition and structure, and despite the high thermal stability of the parent compound, LiMnPO sub(4, we find that the delithiated phase Li) sub(y)MnPO sub(4 (which contains a small amount of residual lithium), is relatively unstable and reactive toward a lithium-ion electrolyte. The onset temperature for heat evolution in the presence of 1 M LiPF) sub(6) in 1:1 ethylene carbonate/propylene carbonate is around 150 [deg]C, and the total evolved heat is 884 J g[super]-1, comparable to that produced under similar conditions by charged LiCoO sub(2 electrodes.) JF - Journal of Power Sources AU - Chen, Guoying AU - Richardson, Thomas J Y1 - 2010/02/15/ PY - 2010 DA - 2010 Feb 15 SP - 1221 EP - 1224 PB - Elesevier Science B.V., P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 195 IS - 4 SN - 0378-7753, 0378-7753 KW - Mechanical & Transportation Engineering Abstracts (MT); Environmental Engineering Abstracts (EN); Electronics and Communications Abstracts (EA); CSA / ASCE Civil Engineering Abstracts (CE) KW - Thermal stability KW - Lithium batteries KW - Olivine phosphates KW - Cathodes KW - Charging KW - Carbonates KW - Electrodes KW - Ethylene KW - Similarity KW - Evolution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1777164862?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Power+Sources&rft.atitle=Thermal+instability+of+Olivine-type+LiMnPO+sub%284+cathodes%29&rft.au=Chen%2C+Guoying%3BRichardson%2C+Thomas+J&rft.aulast=Chen&rft.aufirst=Guoying&rft.date=2010-02-15&rft.volume=195&rft.issue=4&rft.spage=1221&rft.isbn=&rft.btitle=&rft.title=Journal+of+Power+Sources&rft.issn=03787753&rft_id=info:doi/10.1016%2Fj.jpowsour.2009.08.046 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-10-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1016/j.jpowsour.2009.08.046 ER - TY - JOUR T1 - Functional plasmonic antenna scanning probes fabricated by induced-deposition mask lithography. AN - 733709685; 20061594 AB - We have fabricated plasmonic bowtie antennae on the apex of silicon atomic-force microscope cantilever tips that enhance the local silicon Raman scattering intensity by approximately 4 x 10(4) when excited near the antenna resonance. The antennae were fabricated using a novel method, induced-deposition mask lithography (IDML), capable of creating high-purity metallic nanostructures on non-planar, non-conducting substrates with high repeatability. IDML involves electron-beam-induced deposition of a W or SiO(x) hard mask on the material to be pattered, here a 20 nm Au film, followed by Ar ion etching to remove the mask and the unmasked gold, leaving a chemically pure Au bowtie antenna. Antenna function and reproducibility was confirmed by comparing Raman spectra for excitation polarized parallel and perpendicular to the antenna axis, as well as by dark-field spectroscopic characterization of resonant modes. The field enhancement of these plasmonic AFM antennae tips was comparable with antennae produced by electron-beam lithography on flat substrates. JF - Nanotechnology AU - Weber-Bargioni, A AU - Schwartzberg, A AU - Schmidt, M AU - Harteneck, B AU - Ogletree, D F AU - Schuck, P J AU - Cabrini, S AD - Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. afweber-bargioni@lbl.gov Y1 - 2010/02/10/ PY - 2010 DA - 2010 Feb 10 SP - 065306 VL - 21 IS - 6 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733709685?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nanotechnology&rft.atitle=Functional+plasmonic+antenna+scanning+probes+fabricated+by+induced-deposition+mask+lithography.&rft.au=Weber-Bargioni%2C+A%3BSchwartzberg%2C+A%3BSchmidt%2C+M%3BHarteneck%2C+B%3BOgletree%2C+D+F%3BSchuck%2C+P+J%3BCabrini%2C+S&rft.aulast=Weber-Bargioni&rft.aufirst=A&rft.date=2010-02-10&rft.volume=21&rft.issue=6&rft.spage=065306&rft.isbn=&rft.btitle=&rft.title=Nanotechnology&rft.issn=1361-6528&rft_id=info:doi/10.1088%2F0957-4484%2F21%2F6%2F065306 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-03-16 N1 - Date created - 2010-01-12 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1088/0957-4484/21/6/065306 ER - TY - CPAPER T1 - The Changing Dynamics of Scientific Collaborations T2 - 2010 ACM Conference on Computer Supported Cooperative Work (CSCW 2010) AN - 42312089; 5634355 JF - 2010 ACM Conference on Computer Supported Cooperative Work (CSCW 2010) AU - Aragon, Cecilia AU - Heer, Jeffrey AU - Lee, Charlotte AU - Silva, Claudio Y1 - 2010/02/06/ PY - 2010 DA - 2010 Feb 06 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42312089?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+ACM+Conference+on+Computer+Supported+Cooperative+Work+%28CSCW+2010%29&rft.atitle=The+Changing+Dynamics+of+Scientific+Collaborations&rft.au=Aragon%2C+Cecilia%3BHeer%2C+Jeffrey%3BLee%2C+Charlotte%3BSilva%2C+Claudio&rft.aulast=Aragon&rft.aufirst=Cecilia&rft.date=2010-02-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+ACM+Conference+on+Computer+Supported+Cooperative+Work+%28CSCW+2010%29&rft.issn=&rft_id=info:doi/ L2 - http://www.cscw2010.org/program/cscw2010program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Hysteresis of Colloid Retention and Release in Saturated Porous Media During Transients in Solution Chemistry AN - 918038922; 13268743 AB - Saturated packed column and micromodel transport studies were conducted to gain insight on mechanisms of colloid retention and release under unfavorable attachment conditions. The initial deposition of colloids in porous media was found to be a strongly coupled process that depended on solution chemistry and pore space geometry. During steady state chemical conditions, colloid deposition was not a readily reversible process, and micromodel photos indicated that colloids were immobilized in the presence of fluid drag. Upon stepwise reduction in eluting solution ionic strength (IS), a sharp release of colloids occurred in each step which indicates that colloid retention depends on a balance of applied (hydrodynamic) and resisting (adhesive) torques which varied with pore space geometry, surface roughness, and interaction energy. When the eluting fluid IS was reduced to deionized water, the final retention locations occurred near grain-grain contacts, and colloid aggregation was sometimes observed in micromodel experiments. Significant amounts of colloid retention hysteresis with IS were observed in the column experiments, and it depended on the porous medium (glass beads compared with sand), the colloid size (1.1 and 0.5 *mm), and on the initial deposition IS. These observations were attributed to weak adhesive interactions that depended on the double layer thickness (e.g., the depth of the secondary minimum and/or nanoscale heterogeneity), colloid mass transfer on the solid phase to regions where the torque and force balances were favorable for retention, the number and extent of grain-grain contacts, and surface roughness. JF - Environmental Science & Technology AU - Torkzaban, Saeed AU - Kim, Hyunjung N AU - Simunek, Jiri AU - Bradford, Scott A AD - Earth Sciences Division, Lawrence, Berkeley National Laboratory, Berkeley, CA, Department Chemical and Environmental Engineering, University of California, Riverside, CA, Department Environmental Sciences, University of California, Riverside, CA, and USDA, ARS, U.S. Salinity Laboratory, Riverside, CA Y1 - 2010/02/05/ PY - 2010 DA - 2010 Feb 05 SP - 1662 EP - 1669 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 44 IS - 5 SN - 0013-936X, 0013-936X KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 3: Aquatic Pollution & Environmental Quality; Environment Abstracts KW - hysteresis KW - Hydrodynamics KW - Colloids KW - Retention KW - Environmental factors KW - Sand KW - Torque KW - Adhesives KW - Heterogeneity KW - Porous Media KW - Mass Transfer KW - Hysteresis KW - Drag KW - Pores KW - Surface roughness KW - Photographs KW - Deposition KW - Mass transfer KW - AQ 00001:Water Resources and Supplies KW - Q5 08503:Characteristics, behavior and fate KW - SW 5040:Data acquisition KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918038922?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Hysteresis+of+Colloid+Retention+and+Release+in+Saturated+Porous+Media+During+Transients+in+Solution+Chemistry&rft.au=Torkzaban%2C+Saeed%3BKim%2C+Hyunjung+N%3BSimunek%2C+Jiri%3BBradford%2C+Scott+A&rft.aulast=Torkzaban&rft.aufirst=Saeed&rft.date=2010-02-05&rft.volume=44&rft.issue=5&rft.spage=1662&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes903277p L2 - http://pubs.acs.org/doi/abs/10.1021/es903277p LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Colloids; Surface roughness; Photographs; Torque; Mass transfer; Adhesives; Environmental factors; Drag; hysteresis; Hydrodynamics; Sand; Pores; Porous Media; Mass Transfer; Deposition; Hysteresis; Retention; Heterogeneity DO - http://dx.doi.org/10.1021/es903277p ER - TY - JOUR T1 - Uranium-Series Constraints on Radionuclide Transport and Groundwater Flow at the Nopal I Uranium Deposit, Sierra Pea Blanca, Mexico AN - 754543806; 13268731 AB - Uranium-series data for groundwater samples from the Nopal I uranium ore deposit were obtained to place constraints on radionuclide transport and hydrologic processes for a nuclear waste repository located in fractured, unsaturated volcanic tuff. Decreasing uranium concentrations for wells drilled in 2003 are consistent with a simple physical mixing model that indicates that groundwater velocities are low (10 m/y). Uranium isotopic constraints, well productivities, and radon systematics also suggest limited groundwater mixing and slow flow in the saturated zone. Uranium isotopic systematics for seepage water collected in the mine adit show a spatial dependence which is consistent with longer water-rock interaction times and higher uranium dissolution inputs at the front adit where the deposit is located. Uranium-series disequilibria measurements for mostly unsaturated zone samples indicate that 230Th/238U activity ratios range from 0.005 to 0.48 and 226Ra/238U activity ratios range from 0.006 to 113. 239Pu/238U mass ratios for the saturated zone are 1000 times lower than the U mobility. Saturated zone mobility decreases in the order 238U > 226Ra > 230Th > 239Pu. Radium and thorium appear to have higher mobility in the unsaturated zone based on U-series data from fractures and seepage water near the deposit. JF - Environmental Science & Technology AU - Goldstein, Steven J AU - Abdel-Fattah, Amr I AU - Murrell, Michael T AU - Dobson, Patrick F AU - Norman, Deborah E AU - Amato, Ronald S AU - Nunn, Andrew J AD - Nuclear and Radiochemistry Group, Los Alamos National Laboratory, P.O. Box 1663, MS J514, Los Alamos, New Mexico 87545, Earth and Environmental Sciences Division (EES-14), Los Alamos National Laboratory, P.O. Box 1663, MS J966, Los Alamos, New Mexico 87545, and Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 Y1 - 2010/02/05/ PY - 2010 DA - 2010 Feb 05 SP - 1579 EP - 1586 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 44 IS - 5 SN - 0013-936X, 0013-936X KW - ASFA 3: Aquatic Pollution & Environmental Quality; Pollution Abstracts; Health & Safety Science Abstracts; Environment Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Aeration Zone KW - Mobility KW - Thorium isotopes KW - Seepage KW - Mixing KW - Uranium KW - Seepages KW - Thorium KW - Volcanoes KW - Radioactive wastes KW - Fractures KW - Velocity KW - Radium KW - Systematics KW - Mines KW - Radon KW - Mexico KW - Wells KW - Radioisotopes KW - Radiation measurements KW - seepages KW - Groundwater KW - Groundwater Movement KW - P 2000:FRESHWATER POLLUTION KW - H 2000:Transportation KW - SW 3020:Sources and fate of pollution KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality KW - ENA 19:Water Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754543806?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Uranium-Series+Constraints+on+Radionuclide+Transport+and+Groundwater+Flow+at+the+Nopal+I+Uranium+Deposit%2C+Sierra+Pea+Blanca%2C+Mexico&rft.au=Goldstein%2C+Steven+J%3BAbdel-Fattah%2C+Amr+I%3BMurrell%2C+Michael+T%3BDobson%2C+Patrick+F%3BNorman%2C+Deborah+E%3BAmato%2C+Ronald+S%3BNunn%2C+Andrew+J&rft.aulast=Goldstein&rft.aufirst=Steven&rft.date=2010-02-05&rft.volume=44&rft.issue=5&rft.spage=1579&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes902689e L2 - http://pubs.acs.org/doi/abs/10.1021/es902689e LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Thorium; Thorium isotopes; Uranium; Fractures; Radioactive wastes; Radioisotopes; Radium; Seepages; Radon; Mobility; Volcanoes; Velocity; Mines; Radiation measurements; seepages; Groundwater; Aeration Zone; Wells; Systematics; Seepage; Mixing; Groundwater Movement; Mexico DO - http://dx.doi.org/10.1021/es902689e ER - TY - JOUR T1 - Satellite-based measurements of surface deformation reveal fluid flow associated with the geological storage of carbon dioxide AN - 21294798; 11915085 AB - Interferometric Synthetic Aperture Radar (InSAR) data, gathered over the In Salah CO2 storage project in Algeria, provide an early indication that satellite-based geodetic methods can be effective in monitoring the geological storage of carbon dioxide. An injected mass of 3 million tons of carbon dioxide from one of the first large-scale carbon sequestration efforts, produces a measurable surface displacement of approximately 5 mm/year. Using geophysical inverse techniques, we are able to infer flow within the reservoir layer and within a seismically detected fracture/fault zone intersecting the reservoir. We find that, if we use the best available elastic Earth model, the fluid flow need only occur in the vicinity of the reservoir layer. However, flow associated with the injection of the carbon dioxide does appear to extend several kilometers laterally within the reservoir, following the fracture/fault zone. JF - Geophysical Research Letters AU - Vasco, D W AU - Rucci, A AU - Ferretti, A AU - Novali, F AU - Bissell, R C AU - Ringrose, P S AU - Mathieson, A S AU - Wright, I W AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2010/02/03/ PY - 2010 DA - 2010 Feb 03 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA VL - 37 IS - 03 SN - 0094-8276, 0094-8276 KW - Sustainability Science Abstracts KW - deformation KW - Storage KW - Carbon sequestration KW - Radar KW - Seismic activity KW - Geology KW - Geophysics KW - Carbon dioxide KW - Algeria KW - Reservoirs KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21294798?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Satellite-based+measurements+of+surface+deformation+reveal+fluid+flow+associated+with+the+geological+storage+of+carbon+dioxide&rft.au=Vasco%2C+D+W%3BRucci%2C+A%3BFerretti%2C+A%3BNovali%2C+F%3BBissell%2C+R+C%3BRingrose%2C+P+S%3BMathieson%2C+A+S%3BWright%2C+I+W&rft.aulast=Vasco&rft.aufirst=D&rft.date=2010-02-03&rft.volume=37&rft.issue=03&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2009GL041544 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-03-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Storage; Carbon sequestration; Radar; Seismic activity; Geology; Geophysics; deformation; Carbon dioxide; Reservoirs; Algeria DO - http://dx.doi.org/10.1029/2009GL041544 ER - TY - JOUR T1 - Characterizing magnetism of individual magnetosomes by X-ray magnetic circular dichroism in a scanning transmission X-ray microscope AN - 753849297; 2010-067619 AB - Soft X-ray scanning transmission X-ray microscopy (STXM) was used to measure the Fe L (sub 2, 3) X-ray magnetic circular dichroism (XMCD) signal from individual, 30nm diameter magnetosomes in a magnetotactic bacterium, specifically the marine vibrio strain MV-1. The Fe L (sub 2, 3) spectra recorded with circularly polarized X-rays from an elliptically polarizing undulator were very similar in shape and magnitude to those of fully saturated magnetite (Fe (sub 3) O (sub 4) ). As previously determined by other techniques, our results show that the magnetic moments of individual magnetosomes arranged in linear chains in intact cells of strain MV-1 are all oriented in the same direction. The magnitude of the XMCD signal averaged over a chain of 9 magnetosomes in one cell is similar to that of single crystal magnetite. The spectral shape is slightly different, and indicates that magnetosomes have excess Fe (super (II)) , as noted in previous bulk studies of biogenic magnetite. To our knowledge, this is the first measurement of the XMCD of individual magnetosomes in magnetotactic bacteria. JF - Chemical Geology AU - Lam, Karen P AU - Hitchcock, Adam P AU - Obst, Martin AU - Lawrence, John R AU - Swerhone, George D W AU - Leppard, Gary G AU - Tyliszczak, Tolken AU - Karunakaran, Chithra AU - Wang, Jian AU - Kaznatcheev, Konstantin AU - Bazylinski, Dennis A AU - Lins, Ulysses Y1 - 2010/02// PY - 2010 DA - February 2010 SP - 110 EP - 116 PB - Elsevier, Amsterdam VL - 270 IS - 1-4 SN - 0009-2541, 0009-2541 KW - X-ray data KW - microscope methods KW - dichroism KW - bacteria KW - characterization KW - oxides KW - magnetization KW - crystal chemistry KW - chemical composition KW - geochemistry KW - magnetite KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753849297?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=Characterizing+magnetism+of+individual+magnetosomes+by+X-ray+magnetic+circular+dichroism+in+a+scanning+transmission+X-ray+microscope&rft.au=Lam%2C+Karen+P%3BHitchcock%2C+Adam+P%3BObst%2C+Martin%3BLawrence%2C+John+R%3BSwerhone%2C+George+D+W%3BLeppard%2C+Gary+G%3BTyliszczak%2C+Tolken%3BKarunakaran%2C+Chithra%3BWang%2C+Jian%3BKaznatcheev%2C+Konstantin%3BBazylinski%2C+Dennis+A%3BLins%2C+Ulysses&rft.aulast=Lam&rft.aufirst=Karen&rft.date=2010-02-01&rft.volume=270&rft.issue=1-4&rft.spage=110&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2009.11.009 L2 - http://www.sciencedirect.com/science/journal/00092541 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 65 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - CHGEAD N1 - SubjectsTermNotLitGenreText - bacteria; characterization; chemical composition; crystal chemistry; dichroism; geochemistry; magnetite; magnetization; microscope methods; oxides; X-ray data DO - http://dx.doi.org/10.1016/j.chemgeo.2009.11.009 ER - TY - JOUR T1 - Estimating DNA coverage and abundance in metagenomes using a gamma approximation AN - 746083724; 13115204 AB - Motivation: Shotgun sequencing generates large numbers of short DNA reads from either an isolated organism or, in the case of metagenomics projects, from the aggregate genome of a microbial community. These reads are then assembled based on overlapping sequences into larger, contiguous sequences (contigs). The feasibility of assembly and the coverage achieved (reads per nucleotide or distinct sequence of nucleotides) depend on several factors: the number of reads sequenced, the read length and the relative abundances of their source genomes in the microbial community. A low coverage suggests that most of the genomic DNA in the sample has not been sequenced, but it is often difficult to estimate either the extent of the uncaptured diversity or the amount of additional sequencing that would be most efficacious. In this work, we regard a metagenome as a population of DNA fragments (bins), each of which may be covered by one or more reads. We employ a gamma distribution to model this bin population due to its flexibility and ease of use. When a gamma approximation can be found that adequately fits the data, we may estimate the number of bins that were not sequenced and that could potentially be revealed by additional sequencing. We evaluated the performance of this model using simulated metagenomes and demonstrate its applicability on three recent metagenomic datasets.Contact: sean.d.hooperenpat.uu.seSupplementary information: Supplementary data are available at Bioinformatics online. JF - Bioinformatics AU - Hooper, Sean D AU - Dalevi, Daniel AU - Pati, Amrita AU - Mavromatis, Konstantinos AU - Ivanova, Natalia N AU - Kyrpides, Nikos C AD - super(1) Department of Energy Joint Genome Institute (DOE-JGI), Genome Biology Program, 2800 Mitchell Drive, Walnut Creek, CA 94598 and super(2) Biological Data Management and Technology Center, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Y1 - 2010/02/01/ PY - 2010 DA - 2010 Feb 01 SP - 295 EP - 301 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 26 IS - 3 SN - 1367-4803, 1367-4803 KW - Biochemistry Abstracts 2: Nucleic Acids; Biotechnology and Bioengineering Abstracts KW - Genomes KW - DNA sequencing KW - Data processing KW - Nucleotide sequence KW - Abundance KW - DNA KW - Bioinformatics KW - genomics KW - Models KW - N 14810:Methods KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746083724?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=Estimating+DNA+coverage+and+abundance+in+metagenomes+using+a+gamma+approximation&rft.au=Hooper%2C+Sean+D%3BDalevi%2C+Daniel%3BPati%2C+Amrita%3BMavromatis%2C+Konstantinos%3BIvanova%2C+Natalia+N%3BKyrpides%2C+Nikos+C&rft.aulast=Hooper&rft.aufirst=Sean&rft.date=2010-02-01&rft.volume=26&rft.issue=3&rft.spage=295&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/10.1093%2Fbioinformatics%2Fbtp687 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Genomes; DNA sequencing; Data processing; Nucleotide sequence; Abundance; DNA; genomics; Bioinformatics; Models DO - http://dx.doi.org/10.1093/bioinformatics/btp687 ER - TY - JOUR T1 - Advanced biofuel production in microbes AN - 746076818; 12744711 AB - The cost-effective production of biofuels from renewable materials will begin to address energy security and climate change concerns. Ethanol, naturally produced by microorganisms, is currently the major biofuel in the transportation sector. However, its low energy content and incompatibility with existing fuel distribution and storage infrastructure limits its economic use in the future. Advanced biofuels, such as long chain alcohols and isoprenoid- and fatty acid-based biofuels, have physical properties that more closely resemble petroleum-derived fuels, and as such are an attractive alternative for the future supplementation or replacement of petroleum-derived fuels. Here, we review recent developments in the engineering of metabolic pathways for the production of known and potential advanced biofuels by microorganisms. We concentrate on the metabolic engineering of genetically tractable organisms such as Escherichia coli and Saccharomyces cerevisiae for the production of these advanced biofuels. JF - Biotechnology Journal AU - Peralta-Yahya, Pamela P AU - Keasling, Jay D AD - Joint BioEnergy Institute, Emeryville, CA, USA, keasling@berkeley.edu Y1 - 2010/02// PY - 2010 DA - Feb 2010 SP - 147 EP - 162 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 5 IS - 2 SN - 1860-6768, 1860-6768 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology; Biotechnology and Bioengineering Abstracts KW - Fuels KW - Climatic changes KW - metabolic engineering KW - Supplementation KW - Saccharomyces cerevisiae KW - Energy KW - Reviews KW - Economics KW - Escherichia coli KW - Microorganisms KW - Metabolic pathways KW - Biofuels KW - Ethanol KW - W 30925:Genetic Engineering KW - A 01300:Methods KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746076818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biotechnology+Journal&rft.atitle=Advanced+biofuel+production+in+microbes&rft.au=Peralta-Yahya%2C+Pamela+P%3BKeasling%2C+Jay+D&rft.aulast=Peralta-Yahya&rft.aufirst=Pamela&rft.date=2010-02-01&rft.volume=5&rft.issue=2&rft.spage=147&rft.isbn=&rft.btitle=&rft.title=Biotechnology+Journal&rft.issn=18606768&rft_id=info:doi/10.1002%2Fbiot.200900220 L2 - http://www3.interscience.wiley.com/journal/123243746/abstract LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Reviews; Energy; Fuels; Climatic changes; Economics; Metabolic pathways; Microorganisms; metabolic engineering; Supplementation; Biofuels; Ethanol; Escherichia coli; Saccharomyces cerevisiae DO - http://dx.doi.org/10.1002/biot.200900220 ER - TY - JOUR T1 - The effect of horizontal resolution on simulation of very extreme US precipitation events in a global atmosphere model AN - 745696116; 12599530 AB - We investigate the ability of a global atmospheric general circulation model (AGCM) to reproduce observed 20year return values of the annual maximum daily precipitation totals over the continental United States as a function of horizontal resolution. We find that at the high resolutions enabled by contemporary supercomputers, the AGCM can produce values of comparable magnitude to high quality observations. However, at the resolutions typical of the coupled general circulation models used in the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, the precipitation return values are severely underestimated. JF - Climate Dynamics AU - Wehner, Michael F AU - Smith, Richard L AU - Bala, G AU - Duffy, Phillip AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Rd. MS50F, Berkeley, CA, 94720, USA, mfwehner@lbl.gov Y1 - 2010/02// PY - 2010 DA - February 2010 SP - 241 EP - 247 PB - Springer-Verlag, Heidelberger Platz 3 Berlin 14197 Germany VL - 34 IS - 2-3 SN - 0930-7575, 0930-7575 KW - Sustainability Science Abstracts; Water Resources Abstracts; Meteorological & Geoastrophysical Abstracts KW - Climate models KW - Rainfall KW - Climate change KW - Climates KW - Simulation KW - Atmospheric circulation KW - Precipitation KW - Intergovernmental Panel on Climate Change KW - Atmospheric circulation-oceanic circulation coupled models KW - Atmosphere KW - Model Studies KW - USA KW - Assessments KW - Numerical simulations KW - General circulation models KW - Daily precipitation KW - M2 551.583:Variations (551.583) KW - M3 1010:Issues in Sustainable Development KW - SW 0815:Precipitation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745696116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Climate+Dynamics&rft.atitle=The+effect+of+horizontal+resolution+on+simulation+of+very+extreme+US+precipitation+events+in+a+global+atmosphere+model&rft.au=Wehner%2C+Michael+F%3BSmith%2C+Richard+L%3BBala%2C+G%3BDuffy%2C+Phillip&rft.aulast=Wehner&rft.aufirst=Michael&rft.date=2010-02-01&rft.volume=34&rft.issue=2-3&rft.spage=241&rft.isbn=&rft.btitle=&rft.title=Climate+Dynamics&rft.issn=09307575&rft_id=info:doi/10.1007%2Fs00382-009-0656-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-05-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Climate models; Numerical simulations; General circulation models; Intergovernmental Panel on Climate Change; Precipitation; Daily precipitation; Atmospheric circulation-oceanic circulation coupled models; Rainfall; Simulation; Atmospheric circulation; Atmosphere; Assessments; Climates; Climate change; Model Studies; USA DO - http://dx.doi.org/10.1007/s00382-009-0656-y ER - TY - JOUR T1 - Inverse problem in anisotropic poroelasticity: drained constants from undrained ultrasound measurements. AN - 742784890; pmid-20136194 AB - Poroelastic analysis has traditionally focused on the relationship between dry and drained constants, which are assumed known, and the saturated or undrained constants, which are assumed unknown. However, there are many applications in this field of study for which the main measurements can only be made on the saturated/undrained system, and then it is uncertain what the effects of the fluids were on the system, since the drained constants remain a mystery. The work presented here shows how to deduce drained constants from undrained constants for anisotropic systems having symmetries ranging from isotropic to orthotropic. Laboratory ultrasound data are then inverted for the drained constants in three granular packings: one of glass beads, and two others for distinct types of more or less angular sand grain packings. Experiments were performed under uniaxial stress, which resulted in hexagonal (transversely isotropic) symmetry of the poroelastic response. One important conclusion from the general analysis is that the drained constants are uniquely related to the undrained constants, assuming that porosity, grain bulk modulus, and pore fluid bulk modulus are already known. Since the resulting system of equations for all the drained constants is linear, measurement error in undrained constants also propagates linearly into the computed drained constants. JF - The Journal of the Acoustical Society of America AU - Berryman, James G AU - Nakagawa, Seiji AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, One Cyclotron Road MS90-R1116, Berkeley, California 94720, USA. Y1 - 2010/02// PY - 2010 DA - Feb 2010 SP - 720 EP - 729 VL - 127 IS - 2 SN - 0001-4966, 0001-4966 KW - National Library of Medicine UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742784890?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acomdisdome&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=The+Journal+of+the+Acoustical+Society+of+America&rft.atitle=Inverse+problem+in+anisotropic+poroelasticity%3A+drained+constants+from+undrained+ultrasound+measurements.&rft.au=Berryman%2C+James+G%3BNakagawa%2C+Seiji&rft.aulast=Berryman&rft.aufirst=James&rft.date=2010-02-01&rft.volume=127&rft.issue=2&rft.spage=720&rft.isbn=&rft.btitle=&rft.title=The+Journal+of+the+Acoustical+Society+of+America&rft.issn=00014966&rft_id=info:doi/ LA - English (eng) DB - ComDisDome N1 - Date revised - 2010-06-28 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Genes Involved in Long-Chain Alkene Biosynthesis in Micrococcus luteus AN - 21481771; 12493247 AB - Aliphatic hydrocarbons are highly appealing targets for advanced cellulosic biofuels, as they are already predominant components of petroleum-based gasoline and diesel fuels. We have studied alkene biosynthesis in Micrococcus luteus ATCC 4698, a close relative of Sarcina lutea (now Kocuria rhizophila), which 4 decades ago was reported to biosynthesize iso- and anteiso-branched, long-chain alkenes. The underlying biochemistry and genetics of alkene biosynthesis were not elucidated in those studies. We show here that heterologous expression of a three-gene cluster from M. luteus (Mlut_13230-13250) in a fatty acid-overproducing Escherichia coli strain resulted in production of long-chain alkenes, predominantly 27:3 and 29:3 (no. carbon atoms: no. CC bonds). Heterologous expression of Mlut_13230 (oleA) alone produced no long-chain alkenes but unsaturated aliphatic monoketones, predominantly 27:2, and in vitro studies with the purified Mlut_13230 protein and tetradecanoyl-coenzyme A (CoA) produced the same C27 monoketone. Gas chromatography-time of flight mass spectrometry confirmed the elemental composition of all detected long-chain alkenes and monoketones (putative intermediates of alkene biosynthesis). Negative controls demonstrated that the M. luteus genes were responsible for production of these metabolites. Studies with wild-type M. luteus showed that the transcript copy number of Mlut_13230-13250 and the concentrations of 29:1 alkene isomers (the dominant alkenes produced by this strain) generally corresponded with bacterial population over time. We propose a metabolic pathway for alkene biosynthesis starting with acyl-CoA (or-ACP [acyl carrier protein]) thioesters and involving decarboxylative Claisen condensation as a key step, which we believe is catalyzed by OleA. Such activity is consistent with our data and with the homology (including the conserved Cys-His-Asn catalytic triad) of Mlut_13230 (OleA) to FabH (?-ketoacyl-ACP synthase III), which catalyzes decarboxylative Claisen condensation during fatty acid biosynthesis. JF - Applied and Environmental Microbiology AU - Beller, Harry R AU - Goh, Ee-Been AU - Keasling, Jay D AD - Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, California 94608, HRBeller@lbl.gov Y1 - 2010/02// PY - 2010 DA - Feb 2010 SP - 1212 EP - 1223 PB - American Society for Microbiology, 1752 N Street N.W. Washington, DC 20036 USA VL - 76 IS - 4 SN - 0099-2240, 0099-2240 KW - Genetics Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Acyl carrier protein KW - Escherichia coli KW - Condensation KW - J 02310:Genetics & Taxonomy KW - A 01340:Antibiotics & Antimicrobials KW - G 07770:Bacteria UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21481771?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Applied+and+Environmental+Microbiology&rft.atitle=Genes+Involved+in+Long-Chain+Alkene+Biosynthesis+in+Micrococcus+luteus&rft.au=Beller%2C+Harry+R%3BGoh%2C+Ee-Been%3BKeasling%2C+Jay+D&rft.aulast=Beller&rft.aufirst=Harry&rft.date=2010-02-01&rft.volume=76&rft.issue=4&rft.spage=1212&rft.isbn=&rft.btitle=&rft.title=Applied+and+Environmental+Microbiology&rft.issn=00992240&rft_id=info:doi/10.1128%2FAEM.02312-09 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Condensation; Escherichia coli DO - http://dx.doi.org/10.1128/AEM.02312-09 ER - TY - JOUR T1 - Microbial production of fatty-acid-derived fuels and chemicals from plant biomass AN - 1753556394; 11938852 AB - Increasing energy costs and environmental concerns have emphasized the need to produce sustainable renewable fuels and chemicals. Major efforts to this end are focused on the microbial production of high-energy fuels by cost-effective 'consolidated bioprocesses'. Fatty acids are composed of long alkyl chains and represent nature's 'petroleum', being a primary metabolite used by cells for both chemical and energy storage functions. These energy-rich molecules are today isolated from plant and animal oils for a diverse set of products ranging from fuels to oleochemicals. A more scalable, controllable and economic route to this important class of chemicals would be through the microbial conversion of renewable feedstocks, such as biomass-derived carbohydrates. Here we demonstrate the engineering of Escherichia coli to produce structurally tailored fatty esters (biodiesel), fatty alcohols, and waxes directly from simple sugars. Furthermore, we show engineering of the biodiesel-producing cells to express hemicellulases, a step towards producing these compounds directly from hemicellulose, a major component of plant-derived biomass. JF - Nature AU - Steen, Eric J AU - Kang, Yisheng AU - Bokinsky, Gregory AU - Hu, Zhihao AU - Schirmer, Andreas AU - McClure, Amy AU - del Cardayre, Stephen B AU - Keasling, Jay D AD - [1] Joint BioEnergy Institute, [2] Synthetic Biology Engineering Research Center, 5885 Hollis Avenue, Emeryville, California 94608, USA [3] Departmient of Bioengineering, [4] These authors contributed equally to this work. Y1 - 2010/01/28/ PY - 2010 DA - 2010 Jan 28 SP - 559 EP - 562 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 463 IS - 7280 SN - 0028-0836, 0028-0836 KW - Solid State and Superconductivity Abstracts (SO); Mechanical & Transportation Engineering Abstracts (MT); METADEX (MD); Advanced Polymers Abstracts (EP); Environmental Engineering Abstracts (EN); Composites Industry Abstracts (ED); Engineered Materials Abstracts, Ceramics (EC); Electronics and Communications Abstracts (EA); Computer and Information Systems Abstracts (CI); CSA / ASCE Civil Engineering Abstracts (CE); ANTE: Abstracts in New Technologies and Engineering (AN) KW - Petroleum engineering KW - Plants (organisms) KW - Fuels KW - Economics KW - Microorganisms KW - Fatty acids KW - Esters KW - Biomass KW - Yes:(AN) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1753556394?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvironmentalengabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature&rft.atitle=Microbial+production+of+fatty-acid-derived+fuels+and+chemicals+from+plant+biomass&rft.au=Steen%2C+Eric+J%3BKang%2C+Yisheng%3BBokinsky%2C+Gregory%3BHu%2C+Zhihao%3BSchirmer%2C+Andreas%3BMcClure%2C+Amy%3Bdel+Cardayre%2C+Stephen+B%3BKeasling%2C+Jay+D&rft.aulast=Steen&rft.aufirst=Eric&rft.date=2010-01-28&rft.volume=463&rft.issue=7280&rft.spage=559&rft.isbn=&rft.btitle=&rft.title=Nature&rft.issn=00280836&rft_id=info:doi/10.1038%2Fnature08721 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2016-05-18 DO - http://dx.doi.org/10.1038/nature08721 ER - TY - JOUR T1 - Targeted Discovery of Glycoside Hydrolases from a Switchgrass-Adapted Compost Community AN - 745715601; 13104820 AB - Development of cellulosic biofuels from non-food crops is currently an area of intense research interest. Tailoring depolymerizing enzymes to particular feedstocks and pretreatment conditions is one promising avenue of research in this area. Here we added a green-waste compost inoculum to switchgrass (Panicum virgatum) and simulated thermophilic composting in a bioreactor to select for a switchgrass-adapted community and to facilitate targeted discovery of glycoside hydrolases. Small-subunit (SSU) rRNA-based community profiles revealed that the microbial community changed dramatically between the initial and switchgrass-adapted compost (SAC) with some bacterial populations being enriched over 20-fold. We obtained 225 Mbp of 454-titanium pyrosequence data from the SAC community and conservatively identified 800 genes encoding glycoside hydrolase domains that were biased toward depolymerizing grass cell wall components. Of these, 610% were putative cellulases mostly belonging to families GH5 and GH9. We synthesized two SAC GH9 genes with codon optimization for heterologous expression in Escherichia coli and observed activity for one on carboxymethyl cellulose. The active GH9 enzyme has a temperature optimum of 50C and pH range of 5.5 to 8 consistent with the composting conditions applied. We demonstrate that microbial communities adapt to switchgrass decomposition using simulated composting condition and that full-length genes can be identified from complex metagenomic sequence data, synthesized and expressed resulting in active enzyme. JF - PLoS ONE AU - Allgaier, Martin AU - Reddy, Amitha AU - Park, Joshua I AU - Ivanova, Natalia AU - D'haeseleer, Patrik AU - Lowry, Steve AU - Sapra, Rajat AU - Hazen, Terry C AU - Simmons, Blake A AU - VanderGheynst, Jean S AU - Hugenholtz, Philip AD - Deconstruction Division, Joint BioEnergy Institute, Emeryville, California, United States of America Y1 - 2010/01/21/ PY - 2010 DA - 2010 Jan 21 PB - BioMed Central Ltd., Middlesex House London W1T 4LB UK VL - 5 IS - 1 KW - Microbiology Abstracts B: Bacteriology KW - Temperature effects KW - Panicum virgatum KW - Data processing KW - Composts KW - Grasses KW - Enzymes KW - Decomposition KW - Crops KW - Cellulase KW - Carboxymethylcellulose KW - Bioreactors KW - Escherichia coli KW - Codons KW - Inoculum KW - glycoside hydrolase KW - Composting KW - pH effects KW - Biofuels KW - Cell walls KW - J 02320:Cell Biology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/745715601?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=PLoS+ONE&rft.atitle=Targeted+Discovery+of+Glycoside+Hydrolases+from+a+Switchgrass-Adapted+Compost+Community&rft.au=Allgaier%2C+Martin%3BReddy%2C+Amitha%3BPark%2C+Joshua+I%3BIvanova%2C+Natalia%3BD%27haeseleer%2C+Patrik%3BLowry%2C+Steve%3BSapra%2C+Rajat%3BHazen%2C+Terry+C%3BSimmons%2C+Blake+A%3BVanderGheynst%2C+Jean+S%3BHugenholtz%2C+Philip&rft.aulast=Allgaier&rft.aufirst=Martin&rft.date=2010-01-21&rft.volume=5&rft.issue=1&rft.spage=&rft.isbn=&rft.btitle=&rft.title=PLoS+ONE&rft.issn=1932-6203&rft_id=info:doi/10.1371%2Fjournal.pone.0008812 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Temperature effects; Data processing; Composts; Grasses; Enzymes; Decomposition; Cellulase; Crops; Carboxymethylcellulose; Bioreactors; Inoculum; Codons; glycoside hydrolase; Composting; pH effects; Biofuels; Cell walls; Panicum virgatum; Escherichia coli DO - http://dx.doi.org/10.1371/journal.pone.0008812 ER - TY - JOUR T1 - PyNAST: a flexible tool for aligning sequences to a template alignment AN - 746233365; 13115177 AB - Motivation: The Nearest Alignment Space Termination (NAST) tool is commonly used in sequence-based microbial ecology community analysis, but due to the limited portability of the original implementation, it has not been as widely adopted as possible. Python Nearest Alignment Space Termination (PyNAST) is a complete reimplementation of NAST, which includes three convenient interfaces: a Mac OS X GUI, a command-line interface and a simple application programming interface (API).Results: The availability of PyNAST will make the popular NAST algorithm more portable and thereby applicable to datasets orders of magnitude larger by allowing users to install PyNAST on their own hardware. Additionally because users can align to arbitrary template alignments, a feature not available via the original NAST web interface, the NAST algorithm will be readily applicable to novel tasks outside of microbial community analysis.Availability: PyNAST is available at http://pynast.sourceforge.net.Contact: rob.knightolorado.edu JF - Bioinformatics AU - Caporaso, JGregory AU - Bittinger, Kyle AU - Bushman, Frederic D AU - DeSantis, Todd Z AU - Andersen, Gary L AU - Knight, Rob AD - super(1) Department of Chemistry and Biochemistry, University of Colorado at Boulder, Boulder, CO, super(2) Department of Microbiology, University of Pennsylvania School of Medicine, Philadelphia, PA and super(3) Center for Environmental Biotechnology, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2010/01/15/ PY - 2010 DA - 2010 Jan 15 SP - 266 EP - 267 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 26 IS - 2 SN - 1367-4803, 1367-4803 KW - Biotechnology and Bioengineering Abstracts KW - Algorithms KW - Bioinformatics KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746233365?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=PyNAST%3A+a+flexible+tool+for+aligning+sequences+to+a+template+alignment&rft.au=Caporaso%2C+JGregory%3BBittinger%2C+Kyle%3BBushman%2C+Frederic+D%3BDeSantis%2C+Todd+Z%3BAndersen%2C+Gary+L%3BKnight%2C+Rob&rft.aulast=Caporaso&rft.aufirst=JGregory&rft.date=2010-01-15&rft.volume=26&rft.issue=2&rft.spage=266&rft.isbn=&rft.btitle=&rft.title=Bioinformatics&rft.issn=13674803&rft_id=info:doi/10.1093%2Fbioinformatics%2Fbtp636 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2015-03-31 N1 - SubjectsTermNotLitGenreText - Algorithms; Bioinformatics DO - http://dx.doi.org/10.1093/bioinformatics/btp636 ER - TY - CPAPER T1 - The Populus genome: Version 2.0 assembly and annotation T2 - XVIII Conference on Plant and Animal Genome (PAG-XVIII) AN - 42357690; 5662902 JF - XVIII Conference on Plant and Animal Genome (PAG-XVIII) AU - Tuskan, Gerald Y1 - 2010/01/09/ PY - 2010 DA - 2010 Jan 09 KW - Genomes KW - Bibliographic information KW - Populus KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42357690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=XVIII+Conference+on+Plant+and+Animal+Genome+%28PAG-XVIII%29&rft.atitle=The+Populus+genome%3A+Version+2.0+assembly+and+annotation&rft.au=Tuskan%2C+Gerald&rft.aulast=Tuskan&rft.aufirst=Gerald&rft.date=2010-01-09&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=XVIII+Conference+on+Plant+and+Animal+Genome+%28PAG-XVIII%29&rft.issn=&rft_id=info:doi/ L2 - http://www.intl-pag.org/18/18-pag.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparative algal genomics T2 - XVIII Conference on Plant and Animal Genome (PAG-XVIII) AN - 42355918; 5662843 JF - XVIII Conference on Plant and Animal Genome (PAG-XVIII) AU - Prochnik, Simon Y1 - 2010/01/09/ PY - 2010 DA - 2010 Jan 09 KW - Genomics KW - Algae KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42355918?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=XVIII+Conference+on+Plant+and+Animal+Genome+%28PAG-XVIII%29&rft.atitle=Comparative+algal+genomics&rft.au=Prochnik%2C+Simon&rft.aulast=Prochnik&rft.aufirst=Simon&rft.date=2010-01-09&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=XVIII+Conference+on+Plant+and+Animal+Genome+%28PAG-XVIII%29&rft.issn=&rft_id=info:doi/ L2 - http://www.intl-pag.org/18/18-pag.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Calcium isotope fractionation in ocean ridge hydrothermal systems AN - 925707819; 2012-026953 JF - Geochimica et Cosmochimica Acta AU - Brown, Shaun T AU - DePaolo, Donald J AU - Turchyn, Alexandra V AU - Alt, Jeffrey C AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - calcium KW - isotope fractionation KW - alkaline earth metals KW - magnesium KW - sea water KW - modern analogs KW - isotopes KW - Cretaceous KW - Ca-44 KW - hydrothermal vents KW - ophiolite KW - stable isotopes KW - Mesozoic KW - Mg/Ca KW - metals KW - Troodos Ophiolite KW - Cyprus KW - ocean floors KW - Asia KW - geochemistry KW - Middle East KW - mid-ocean ridges KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925707819?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Calcium+isotope+fractionation+in+ocean+ridge+hydrothermal+systems&rft.au=Brown%2C+Shaun+T%3BDePaolo%2C+Donald+J%3BTurchyn%2C+Alexandra+V%3BAlt%2C+Jeffrey+C%3BAnonymous&rft.aulast=Brown&rft.aufirst=Shaun&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A125&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; Asia; Ca-44; calcium; Cretaceous; Cyprus; geochemistry; hydrothermal vents; isotope fractionation; isotopes; magnesium; Mesozoic; metals; Mg/Ca; mid-ocean ridges; Middle East; modern analogs; ocean floors; ophiolite; sea water; stable isotopes; Troodos Ophiolite ER - TY - JOUR T1 - Molecular dynamics simulations of brine-clay interfaces; implications for CO (sub 2) storage in saline aquifers AN - 925702435; 2012-026924 JF - Geochimica et Cosmochimica Acta AU - Bourg, Ian C AU - Sposito, Garrison AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - silicates KW - clay KW - diffusion KW - sediment-water interface KW - carbon sequestration KW - clastic sediments KW - clay mineralogy KW - data processing KW - smectite KW - porous materials KW - adsorption KW - salinity KW - ground water KW - clay minerals KW - carbon dioxide KW - aquifers KW - digital simulation KW - brines KW - sediments KW - sheet silicates KW - molecular dynamics KW - mass transfer KW - mineral surface KW - 06A:Sedimentary petrology KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/925702435?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Molecular+dynamics+simulations+of+brine-clay+interfaces%3B+implications+for+CO+%28sub+2%29+storage+in+saline+aquifers&rft.au=Bourg%2C+Ian+C%3BSposito%2C+Garrison%3BAnonymous&rft.aulast=Bourg&rft.aufirst=Ian&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A110&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 9 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; aquifers; brines; carbon dioxide; carbon sequestration; clastic sediments; clay; clay mineralogy; clay minerals; data processing; diffusion; digital simulation; ground water; mass transfer; mineral surface; molecular dynamics; porous materials; salinity; sediment-water interface; sediments; sheet silicates; silicates; smectite ER - TY - JOUR T1 - Basin-scale water system operations with uncertain future climate conditions; methodology and case studies AN - 921714762; 2012-021289 AB - The old and useful paradigm used by water resource engineers, that hydrology in a given place is stationary, and hence it is sufficient to look into the past to plan for the future, does not hold anymore, according to climate change projections. This becomes especially true in snow-dominated regions like California, where not only the magnitude but also the timing of streamflow could be affected by changes in precipitation and temperature. To plan and operate water resources systems at the basin scale, it is necessary to develop new tools that are suited for this nonstationary world. In this paper we develop an optimization algorithm that can be used for different studies related to climate change and water resources management. Three applications of this algorithm are developed for the Merced River basin. The first of these gives an assessment of the climate change effects on the operations of this basin considering an adaptive management strategy embedded in the optimization algorithm. In a second application we explore different long-term adaptation strategies intended to mitigate the effects of climate change. A final application is developed to determine how beneficial it is to build a new reservoir considering explicitly the uncertainty about future climate projections. JF - Water Resources Research AU - Vicuna, Sebastian AU - Dracup, John A AU - Lund, Jay R AU - Dale, Larry L AU - Maurer, Edwin P Y1 - 2010 PY - 2010 DA - 2010 EP - Citation W04505 PB - American Geophysical Union, Washington, DC VL - 46 IS - 4 SN - 0043-1397, 0043-1397 KW - United States KW - Sierra Nevada KW - hydrology KW - reservoirs KW - numerical models KW - statistical analysis KW - prediction KW - climate change KW - ground water KW - California KW - streamflow KW - stochastic processes KW - hydrographs KW - Merced County California KW - Merced River basin KW - algorithms KW - water resources KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921714762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Basin-scale+water+system+operations+with+uncertain+future+climate+conditions%3B+methodology+and+case+studies&rft.au=Vicuna%2C+Sebastian%3BDracup%2C+John+A%3BLund%2C+Jay+R%3BDale%2C+Larry+L%3BMaurer%2C+Edwin+P&rft.aulast=Vicuna&rft.aufirst=Sebastian&rft.date=2010-01-01&rft.volume=46&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2009WR007838 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 37 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - algorithms; California; climate change; ground water; hydrographs; hydrology; Merced County California; Merced River basin; numerical models; prediction; reservoirs; Sierra Nevada; statistical analysis; stochastic processes; streamflow; United States; water resources DO - http://dx.doi.org/10.1029/2009WR007838 ER - TY - JOUR T1 - Dynamic inversion for hydrological process monitoring with electrical resistance tomography under model uncertainties AN - 921714450; 2012-021274 AB - We propose an approach for imaging the dynamics of complex hydrological processes. The evolution of electrically conductive fluids in porous media is imaged using time-lapse electrical resistance tomography. The related dynamic inversion problem is solved using Bayesian filtering techniques; that is, it is formulated as a sequential state estimation problem in which the target is an evolving posterior probability density of the system state. The dynamical inversion framework is based on the state space representation of the system which involves the construction of a stochastic evolution model and an observation model. The observation model that we use in this paper consists of the complete electrode model for ERT, with Archie's law relating saturations to electrical conductivity. The evolution model is an approximate model for simulating flow through partially saturated porous media. Unavoidable modeling and approximation errors in both the observation and evolution models are considered by computing approximate statistics for these errors. These models are then included in the construction of the posterior probability density of the estimated system state. This approximation error method allows the use of approximate, and therefore computationally efficient, observation and evolution models in the Bayesian filtering. We consider a synthetic example and show that the incorporation of an explicit model for the model uncertainties in the state space representation can yield better estimates than the frame-by-frame imaging approach. JF - Water Resources Research AU - Lehikoinen, A AU - Huttunen, J M J AU - Finsterle, S AU - Kowalsky, M B AU - Kaipio, J P Y1 - 2010 PY - 2010 DA - 2010 EP - Citation W04513 PB - American Geophysical Union, Washington, DC VL - 46 IS - 4 SN - 0043-1397, 0043-1397 KW - tomography KW - hydrology KW - electrical conductivity KW - monitoring KW - numerical models KW - Bayesian analysis KW - Archie's law KW - statistical analysis KW - Kalman filters KW - geophysical methods KW - electrical methods KW - mathematical models KW - resistivity KW - porosity KW - ground water KW - stochastic processes KW - filtration KW - uncertainty KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921714450?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Dynamic+inversion+for+hydrological+process+monitoring+with+electrical+resistance+tomography+under+model+uncertainties&rft.au=Lehikoinen%2C+A%3BHuttunen%2C+J+M+J%3BFinsterle%2C+S%3BKowalsky%2C+M+B%3BKaipio%2C+J+P&rft.aulast=Lehikoinen&rft.aufirst=A&rft.date=2010-01-01&rft.volume=46&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2009WR008470 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 49 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - Archie's law; Bayesian analysis; electrical conductivity; electrical methods; filtration; geophysical methods; ground water; hydrology; Kalman filters; mathematical models; monitoring; numerical models; porosity; resistivity; statistical analysis; stochastic processes; tomography; uncertainty DO - http://dx.doi.org/10.1029/2009WR008470 ER - TY - JOUR T1 - Influence of environmental conditions on carbonaceous particle concentrations within New Zealand AN - 921713821; 2012-021396 AB - Variables that influence ambient concentrations of air particulate matter due to motor vehicle emissions and biomass burning for home heating were investigated for ten urban environments in New Zealand. It was found that contributions to ambient particulate matter concentrations from these two main anthropogenic carbonaceous sources were only sometimes correlated with the population and/or source activity within an airshed. The average particulate concentration attributed to motor vehicle emissions was found to correlate with the airshed population whereas the home heating contribution was observed to be independent. It was found that particulate matter from biomass burning for home heating emissions often build up during cold calm nights under temperature inversion conditions, restricting vertical dispersion thus confining air particulate matter to a limited atmospheric volume. The average winter particulate concentrations due to home heating within the airsheds studied were attributed more to environmental confinement rather than source activity. JF - Journal of Aerosol Science AU - Trompetter, W J AU - Davy, P K AU - Markwitz, A Y1 - 2010 PY - 2010 DA - 2010 SP - 134 EP - 142 PB - Pergamon Press, New York VL - 41 IS - 1 SN - 0021-8502, 0021-8502 KW - carbonaceous composition KW - Australasia KW - pollution KW - particles KW - New Zealand KW - air pollution KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/921713821?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Aerosol+Science&rft.atitle=Influence+of+environmental+conditions+on+carbonaceous+particle+concentrations+within+New+Zealand&rft.au=Trompetter%2C+W+J%3BDavy%2C+P+K%3BMarkwitz%2C+A&rft.aulast=Trompetter&rft.aufirst=W&rft.date=2010-01-01&rft.volume=41&rft.issue=1&rft.spage=134&rft.isbn=&rft.btitle=&rft.title=Journal+of+Aerosol+Science&rft.issn=00218502&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 9th international conference on Carbonaceous particles in the atmosphere N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by Institute of Geological and Nuclear Sciences Limited (GNS Science), Lower Hutt, New Zealand N1 - Date revised - 2012-01-01 N1 - Number of references - 48 N1 - Document feature - illus. N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - air pollution; Australasia; carbonaceous composition; New Zealand; particles; pollution ER - TY - JOUR T1 - The deep vadose zone as a source of uranium to the near-shore aquifer at the Hanford Site, Washington AN - 919641493; 2012-017245 JF - Geochimica et Cosmochimica Acta AU - McKinley, James P AU - Zachara, John M AU - Resch, Charles T AU - Girvin, Donald C AU - Kaluzny, Rachael M AU - Vermeul, Vince R AU - Christensen, John N AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - cycles KW - contaminant plumes KW - rivers and streams KW - unsaturated zone KW - ground water KW - spatial variations KW - heterogeneity KW - water pollution KW - geochemistry KW - hydrology KW - Washington KW - Columbia River KW - pollution KW - Hanford Site KW - nearshore environment KW - hydrochemistry KW - aquifers KW - water table KW - recharge KW - hydraulic head KW - stratification KW - metals KW - shallow aquifers KW - uranium KW - seasonal variations KW - fluvial environment KW - actinides KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919641493?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+deep+vadose+zone+as+a+source+of+uranium+to+the+near-shore+aquifer+at+the+Hanford+Site%2C+Washington&rft.au=McKinley%2C+James+P%3BZachara%2C+John+M%3BResch%2C+Charles+T%3BGirvin%2C+Donald+C%3BKaluzny%2C+Rachael+M%3BVermeul%2C+Vince+R%3BChristensen%2C+John+N%3BAnonymous&rft.aulast=McKinley&rft.aufirst=James&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A689&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; aquifers; Columbia River; contaminant plumes; cycles; fluvial environment; geochemistry; ground water; Hanford Site; heterogeneity; hydraulic head; hydrochemistry; hydrology; metals; nearshore environment; pollution; recharge; rivers and streams; seasonal variations; shallow aquifers; spatial variations; stratification; United States; unsaturated zone; uranium; Washington; water pollution; water table ER - TY - JOUR T1 - Visualization of hydrated bacterial structures by complementary electron microscopy techniques AN - 919640278; 2012-017208 JF - Geochimica et Cosmochimica Acta AU - Marshall, M J AU - Dohnalkova, A C AU - Arey, B W AU - Williams, K H AU - Fredrickson, J K AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - Garfield County Colorado KW - techniques KW - Shewanella KW - remediation KW - visualization KW - laboratory studies KW - Rifle Colorado KW - applications KW - polymers KW - high-resolution methods KW - biodegradation KW - experimental studies KW - chemical analysis KW - pollution KW - TEM data KW - case studies KW - hydration KW - sample preparation KW - biofilms KW - bacteria KW - Colorado KW - electron microscopy KW - SEM data KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919640278?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Visualization+of+hydrated+bacterial+structures+by+complementary+electron+microscopy+techniques&rft.au=Marshall%2C+M+J%3BDohnalkova%2C+A+C%3BArey%2C+B+W%3BWilliams%2C+K+H%3BFredrickson%2C+J+K%3BAnonymous&rft.aulast=Marshall&rft.aufirst=M&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A671&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - applications; bacteria; biodegradation; biofilms; case studies; chemical analysis; Colorado; electron microscopy; experimental studies; Garfield County Colorado; high-resolution methods; hydration; laboratory studies; pollution; polymers; remediation; Rifle Colorado; sample preparation; SEM data; Shewanella; techniques; TEM data; United States; visualization ER - TY - JOUR T1 - Biogeochemical reaction networks involved in weathering processes AN - 919640248; 2012-017182 JF - Geochimica et Cosmochimica Acta AU - Maher, K AU - Steefel, C I AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - soils KW - Santa Cruz California KW - chemical weathering KW - Leg 162 KW - biochemistry KW - mineral-water interface KW - weathering KW - geochemical cycle KW - case studies KW - California KW - Reykjanes Ridge KW - marine sediments KW - biogenic processes KW - chemical reactions KW - sediments KW - Ocean Drilling Program KW - weathering rates KW - North Atlantic KW - Santa Cruz County California KW - ODP Site 984 KW - Atlantic Ocean KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919640248?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Biogeochemical+reaction+networks+involved+in+weathering+processes&rft.au=Maher%2C+K%3BSteefel%2C+C+I%3BAnonymous&rft.aulast=Maher&rft.aufirst=K&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A658&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Atlantic Ocean; biochemistry; biogenic processes; California; case studies; chemical reactions; chemical weathering; geochemical cycle; Leg 162; marine sediments; mineral-water interface; North Atlantic; Ocean Drilling Program; ODP Site 984; Reykjanes Ridge; Santa Cruz California; Santa Cruz County California; sediments; soils; United States; weathering; weathering rates ER - TY - JOUR T1 - Kinetic theory of isotopic and trace element partitioning between calcite and aqueous solution AN - 919636574; 2012-017315 JF - Geochimica et Cosmochimica Acta AU - DePaolo, Donald J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - calcium KW - isotope fractionation KW - alkaline earth metals KW - oxygen KW - isotopes KW - isotope ratios KW - mineral-water interface KW - O-18/O-16 KW - aqueous solutions KW - equilibrium KW - stable isotopes KW - Sr/Ca KW - calcite KW - partitioning KW - precipitation KW - metals KW - theoretical models KW - trace elements KW - kinetics KW - geochemistry KW - carbonates KW - strontium KW - mineral surface KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919636574?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Kinetic+theory+of+isotopic+and+trace+element+partitioning+between+calcite+and+aqueous+solution&rft.au=DePaolo%2C+Donald+J%3BAnonymous&rft.aulast=DePaolo&rft.aufirst=Donald&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A224&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; aqueous solutions; calcite; calcium; carbonates; equilibrium; geochemistry; isotope fractionation; isotope ratios; isotopes; kinetics; metals; mineral surface; mineral-water interface; O-18/O-16; oxygen; partitioning; precipitation; Sr/Ca; stable isotopes; strontium; theoretical models; trace elements ER - TY - JOUR T1 - Carbon sequestration geochemistry AN - 919636556; 2012-017314 JF - Geochimica et Cosmochimica Acta AU - DePaolo, Donald J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - water KW - silicates KW - carbon sequestration KW - silica minerals KW - mineral-water interface KW - coupling KW - porosity KW - carbon dioxide KW - sedimentary rocks KW - chemical reactions KW - transport KW - carbon KW - reactive transport KW - quartz KW - framework silicates KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919636556?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Carbon+sequestration+geochemistry&rft.au=DePaolo%2C+Donald+J%3BAnonymous&rft.aulast=DePaolo&rft.aufirst=Donald&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A224&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - carbon; carbon dioxide; carbon sequestration; chemical reactions; coupling; framework silicates; geochemistry; mineral-water interface; porosity; quartz; reactive transport; sedimentary rocks; silica minerals; silicates; transport; water ER - TY - JOUR T1 - Modeling UO (sub 2) bioprecipitation and reoxidation by Fe(III) (hydr)oxides AN - 919636350; 2012-017133 JF - Geochimica et Cosmochimica Acta AU - Spycher, N AU - Issarangkun, M AU - Stewart, B AU - Sengor, S AU - Ginn, T AU - Sani, R AU - Peyton, Brent M AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - sulfate ion KW - pollutants KW - oxidation KW - pollution KW - iron hydroxides KW - iron KW - remediation KW - hexavalent uranium KW - ground water KW - models KW - hydroxides KW - ferric iron KW - biogenic processes KW - chemical reactions KW - precipitation KW - metals KW - oxides KW - uranium KW - thermodynamic properties KW - water pollution KW - kinetics KW - geochemistry KW - actinides KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919636350?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Modeling+UO+%28sub+2%29+bioprecipitation+and+reoxidation+by+Fe%28III%29+%28hydr%29oxides&rft.au=Spycher%2C+N%3BIssarangkun%2C+M%3BStewart%2C+B%3BSengor%2C+S%3BGinn%2C+T%3BSani%2C+R%3BPeyton%2C+Brent+M%3BAnonymous&rft.aulast=Spycher&rft.aufirst=N&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A984&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; biogenic processes; chemical reactions; ferric iron; geochemistry; ground water; hexavalent uranium; hydroxides; iron; iron hydroxides; kinetics; metals; models; oxidation; oxides; pollutants; pollution; precipitation; remediation; sulfate ion; thermodynamic properties; uranium; water pollution ER - TY - JOUR T1 - NanoSIP; combining stable isotope probing and high resolution secondary ion mass spectrometry to identify diazotrophs in stratified marine microbial communities AN - 919636341; 2012-017098 JF - Geochimica et Cosmochimica Acta AU - Singer, Steven W AU - Woebken, Dagmar AU - Burow, Luke C AU - Prufert-Bebout, Lee AU - Bebout, Brad M AU - Pett-Ridge, Jennifer AU - Spormann, Alfred M AU - Weber, Peter K AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - stable isotope probing method KW - communities KW - ion probe data KW - isotopes KW - mass spectra KW - stable isotopes KW - nitrogen KW - diazotrophs KW - California KW - laboratory studies KW - NanoSIP KW - algal mats KW - Monterey County California KW - Elkhorn Slough KW - ecology KW - spectra KW - sedimentary structures KW - geochemistry KW - cyanobacteria KW - high-resolution methods KW - fixation KW - experimental studies KW - chemical analysis KW - SIP method KW - biogenic structures KW - algal structures KW - stratification KW - marine environment KW - coastal environment KW - NanoSIMS KW - Moss Landing California KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919636341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=NanoSIP%3B+combining+stable+isotope+probing+and+high+resolution+secondary+ion+mass+spectrometry+to+identify+diazotrophs+in+stratified+marine+microbial+communities&rft.au=Singer%2C+Steven+W%3BWoebken%2C+Dagmar%3BBurow%2C+Luke+C%3BPrufert-Bebout%2C+Lee%3BBebout%2C+Brad+M%3BPett-Ridge%2C+Jennifer%3BSpormann%2C+Alfred+M%3BWeber%2C+Peter+K%3BAnonymous&rft.aulast=Singer&rft.aufirst=Steven&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A966&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - algal mats; algal structures; biogenic structures; California; chemical analysis; coastal environment; communities; cyanobacteria; diazotrophs; ecology; Elkhorn Slough; experimental studies; fixation; geochemistry; high-resolution methods; ion probe data; isotopes; laboratory studies; marine environment; mass spectra; Monterey County California; Moss Landing California; NanoSIMS; NanoSIP; nitrogen; sedimentary structures; SIP method; spectra; stable isotope probing method; stable isotopes; stratification; United States ER - TY - JOUR T1 - ForCent model development and testing using the Enriched Background Isotope Study experiment AN - 919636207; 2012-016992 AB - The ForCent forest ecosystem model was developed by making major revisions to the DayCent model including: (1) adding a humus organic pool, (2) incorporating a detailed root growth model, and (3) including plant phenological growth patterns. Observed plant production and soil respiration data from 1993 to 2000 were used to demonstrate that the ForCent model could accurately simulate ecosystem carbon dynamics for the Oak Ridge National Laboratory deciduous forest. A comparison of ForCent versus observed soil pool (super 14) C signature (Delta (super 14) C) data from the Enriched Background Isotope Study (super 14) C experiment (1999-2006) shows that the model correctly simulates the temporal dynamics of the (super 14) C label as it moved from the surface litter and roots into the mineral soil organic matter pools. ForCent model validation was performed by comparing the observed Enriched Background Isotope Study experimental data with simulated live and dead root biomass Delta (super 14) C data, and with soil respiration Delta (super 14) C (mineral soil, humus layer, leaf litter layer, and total soil respiration) data. Results show that the model correctly simulates the impact of the Enriched Background Isotope Study (super 14) C experimental treatments on soil respiration Delta (super 14) C values for the different soil organic matter pools. Model results suggest that a two-pool root growth model correctly represents root carbon dynamics and inputs to the soil. The model fitting process and sensitivity analysis exposed uncertainty in our estimates of the fraction of mineral soil in the slow and passive pools, dissolved organic carbon flux out of the litter layer into the mineral soil, and mixing of the humus layer into the mineral soil layer. JF - Journal of Geophysical Research AU - Parton, William J AU - Hanson, Paul J AU - Swanston, Chris AU - Torn, Margaret AU - Trumbore, Susan E AU - Riley, William AU - Kelly, Robin Y1 - 2010 PY - 2010 DA - 2010 EP - Citation G04001 PB - American Geophysical Union, Washington, DC VL - 115 IS - G4 SN - 0148-0227, 0148-0227 KW - soils KW - respiration KW - forests KW - ForCent KW - experimental studies KW - degradation KW - numerical models KW - isotopes KW - DayCent KW - ecosystems KW - vegetation KW - environmental analysis KW - stable isotopes KW - C-14/C-12 KW - organic compounds KW - radioactive isotopes KW - carbon KW - Enriched Background Isotope Study KW - C-14 KW - minerals KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919636207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=ForCent+model+development+and+testing+using+the+Enriched+Background+Isotope+Study+experiment&rft.au=Parton%2C+William+J%3BHanson%2C+Paul+J%3BSwanston%2C+Chris%3BTorn%2C+Margaret%3BTrumbore%2C+Susan+E%3BRiley%2C+William%3BKelly%2C+Robin&rft.aulast=Parton&rft.aufirst=William&rft.date=2010-01-01&rft.volume=115&rft.issue=G4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2009JG001193 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 51 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - C-14; C-14/C-12; carbon; DayCent; degradation; ecosystems; Enriched Background Isotope Study; environmental analysis; experimental studies; ForCent; forests; isotopes; minerals; numerical models; organic compounds; radioactive isotopes; respiration; soils; stable isotopes; vegetation DO - http://dx.doi.org/10.1029/2009JG001193 ER - TY - JOUR T1 - Identification of U(VI) sorption products and precipitates on magnetite by GI-SAXS, GI-XAS, and microscopy AN - 919636109; 2012-017167 JF - Geochimica et Cosmochimica Acta AU - Singer, David M AU - Banfield, Jill F AU - Waychunas, Glenn A AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - sorption KW - complexing KW - grazing incidence small-angle X-ray scattering KW - hexavalent uranium KW - laboratory studies KW - GI-XAS method KW - atomic force microscopy data KW - oxides KW - spectra KW - reduction KW - geochemistry KW - pH KW - mineral surface KW - grazing incidence X-ray absorption spectra KW - experimental studies KW - uranyl ion KW - ferrihydrite KW - atomic absorption spectra KW - X-ray spectra KW - EDS spectra KW - GI-SAXS method KW - precipitation KW - metals KW - identification KW - uranium KW - nanoparticles KW - actinides KW - SEM data KW - image analysis KW - magnetite KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919636109?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Identification+of+U%28VI%29+sorption+products+and+precipitates+on+magnetite+by+GI-SAXS%2C+GI-XAS%2C+and+microscopy&rft.au=Singer%2C+David+M%3BBanfield%2C+Jill+F%3BWaychunas%2C+Glenn+A%3BAnonymous&rft.aulast=Singer&rft.aufirst=David&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A965&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; atomic absorption spectra; atomic force microscopy data; complexing; EDS spectra; experimental studies; ferrihydrite; geochemistry; GI-SAXS method; GI-XAS method; grazing incidence small-angle X-ray scattering; grazing incidence X-ray absorption spectra; hexavalent uranium; identification; image analysis; laboratory studies; magnetite; metals; mineral surface; nanoparticles; oxides; pH; precipitation; reduction; SEM data; sorption; spectra; uranium; uranyl ion; X-ray spectra ER - TY - JOUR T1 - Structure of hydrated UO (sub 2) surfaces AN - 919636086; 2012-017165 JF - Geochimica et Cosmochimica Acta AU - Stubbs, Joanne E AU - Eng, Peter J AU - Waychunas, Glenn A AU - Paffett, Mark T AU - Bargar, John R AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - corrosion KW - experimental studies KW - X-ray diffraction data KW - pollution KW - mineral-water interface KW - crystal structure KW - two-dimensional models KW - remediation KW - hydration KW - atomic force microscopy data KW - decontamination KW - oxides KW - applications KW - waste disposal KW - uraninite KW - mineral surface KW - 22:Environmental geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919636086?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Structure+of+hydrated+UO+%28sub+2%29+surfaces&rft.au=Stubbs%2C+Joanne+E%3BEng%2C+Peter+J%3BWaychunas%2C+Glenn+A%3BPaffett%2C+Mark+T%3BBargar%2C+John+R%3BAnonymous&rft.aulast=Stubbs&rft.aufirst=Joanne&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A1000&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - applications; atomic force microscopy data; corrosion; crystal structure; decontamination; experimental studies; hydration; mineral surface; mineral-water interface; oxides; pollution; remediation; two-dimensional models; uraninite; waste disposal; X-ray diffraction data ER - TY - JOUR T1 - Modeling mineral aging in the Critical Zone AN - 919634032; 2012-017145 JF - Geochimica et Cosmochimica Acta AU - Steefel, C I AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - soils KW - chemical weathering KW - secondary minerals KW - Ostwald ripening KW - recrystallization KW - weathering KW - geochemical cycle KW - California KW - reactivity KW - mineral composition KW - critical zone KW - age KW - chronosequences KW - theoretical models KW - weathering rates KW - thermodynamic properties KW - Santa Cruz County California KW - regolith KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919634032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Modeling+mineral+aging+in+the+Critical+Zone&rft.au=Steefel%2C+C+I%3BAnonymous&rft.aulast=Steefel&rft.aufirst=C&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A990&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - age; California; chemical weathering; chronosequences; critical zone; geochemical cycle; mineral composition; Ostwald ripening; reactivity; recrystallization; regolith; Santa Cruz County California; secondary minerals; soils; theoretical models; thermodynamic properties; United States; weathering; weathering rates ER - TY - JOUR T1 - Permeability reduction, calcium and sulfur isotope fractionation during uranium bioremediation AN - 919633116; 2012-017361 JF - Geochimica et Cosmochimica Acta AU - Druhan, Jennifer L AU - Conrad, Mark E AU - Williams, Kenneth H AU - DePaolo, Donald J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - calcium KW - isotope fractionation KW - Garfield County Colorado KW - remediation KW - Rifle Colorado KW - fluid injection KW - reduction KW - geochemistry KW - alkaline earth metals KW - experimental studies KW - sulfate ion KW - pollutants KW - pollution KW - bioremediation KW - calcite KW - metals KW - sulfur KW - uranium KW - hydraulic conductivity KW - Colorado KW - carbonates KW - actinides KW - permeability KW - field studies KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919633116?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Permeability+reduction%2C+calcium+and+sulfur+isotope+fractionation+during+uranium+bioremediation&rft.au=Druhan%2C+Jennifer+L%3BConrad%2C+Mark+E%3BWilliams%2C+Kenneth+H%3BDePaolo%2C+Donald+J%3BAnonymous&rft.aulast=Druhan&rft.aufirst=Jennifer&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A247&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; alkaline earth metals; bioremediation; calcite; calcium; carbonates; Colorado; experimental studies; field studies; fluid injection; Garfield County Colorado; geochemistry; hydraulic conductivity; isotope fractionation; metals; permeability; pollutants; pollution; reduction; remediation; Rifle Colorado; sulfate ion; sulfur; United States; uranium ER - TY - JOUR T1 - Assessing hurricane-induced tree mortality in U.S. Gulf Coast forest ecosystems AN - 919632898; 2012-017021 AB - Tropical cyclones disturb forest ecosystems and have the potential to alter forest structure and species composition as well as ecosystem functions including rates of nutrient cycling and biomass accumulation. Quantifying these forest disturbances is necessary to evaluate the extent and severity of damage for estimating biomass loss, developing regional carbon budgets, and making management decisions following hurricanes. In this study, we quantified forest disturbance (downed and dead and snapped trees) produced by hurricanes using a relationship between field-measured tree mortality and Landsat data that can be broadly applied to Gulf Coast forest ecosystems impacted by hurricanes. Field-measured tree mortality data was collected in Gulf Coast forests at 60 inventory plots established to monitor forest disturbance produced by hurricanes Katrina and Rita, which hit the region in 2005, and Hurricane Gustav, which hit the region in 2008. Large-scale disturbance estimates were obtained by regressing Landsat and Moderate Resolution Imaging Spectroradiometer (MODIS) data that in turn were associated with Forest Inventory and Analysis (FIA) data from the U.S. Forest Service. The use of the general relationship produced a biomass loss from dead trees of 43.9 + or - 8.4 Tg C for Hurricane Katrina and 37.9 + or - 6.4 Tg C for Hurricane Rita, which are near the upper limit of the expected values reported in our previous studies across a number of different forest types. Our results provide an important contribution for reliable assessments of large-scale disturbance produced by hurricanes in forest ecosystems. Improving our ability to accurately assess the impacts of hurricanes on forests and on terrestrial carbon cycles is particularly important given that climate projections suggest that hurricane intensity is likely to increase. JF - Journal of Geophysical Research AU - Negron-Juarez, Robinson AU - Baker, David B AU - Zeng, Hongcheng AU - Henkel, Theryn K AU - Chambers, Jeffrey Q Y1 - 2010 PY - 2010 DA - 2010 EP - Citation G04030 PB - American Geophysical Union, Washington, DC VL - 115 IS - G4 SN - 0148-0227, 0148-0227 KW - tropical environment KW - forests KW - North America KW - Hurricane Katrina KW - land cover KW - Disturbed Belt KW - geologic hazards KW - statistical analysis KW - damage KW - ecosystems KW - Gulf Coastal Plain KW - cyclones KW - Hurricane Rita KW - models KW - quantitative analysis KW - natural hazards KW - storms KW - hurricanes KW - remote sensing KW - MODIS KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919632898?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Assessing+hurricane-induced+tree+mortality+in+U.S.+Gulf+Coast+forest+ecosystems&rft.au=Negron-Juarez%2C+Robinson%3BBaker%2C+David+B%3BZeng%2C+Hongcheng%3BHenkel%2C+Theryn+K%3BChambers%2C+Jeffrey+Q&rft.aulast=Negron-Juarez&rft.aufirst=Robinson&rft.date=2010-01-01&rft.volume=115&rft.issue=G4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2009JG001221 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 48 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - cyclones; damage; Disturbed Belt; ecosystems; forests; geologic hazards; Gulf Coastal Plain; Hurricane Katrina; Hurricane Rita; hurricanes; land cover; models; MODIS; natural hazards; North America; quantitative analysis; remote sensing; statistical analysis; storms; tropical environment DO - http://dx.doi.org/10.1029/2009JG001221 ER - TY - JOUR T1 - Reactive transport modelling of incongruent basalt dissolution in the Biosphere 2 hill-slope experiment AN - 919632712; 2012-017352 JF - Geochimica et Cosmochimica Acta AU - Dontsova, K AU - Steefel, C I AU - Desilets, S AU - Thompson, A AU - Chorover, J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - chemical weathering KW - experimental studies KW - volcanic rocks KW - secondary minerals KW - Oracle Arizona KW - slopes KW - igneous rocks KW - CrunchFlow 2007 KW - analog simulation KW - simulation KW - weathering KW - water-rock interaction KW - transport KW - basalts KW - Arizona KW - reactive transport KW - Biosphere 2 KW - mass transfer KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919632712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reactive+transport+modelling+of+incongruent+basalt+dissolution+in+the+Biosphere+2+hill-slope+experiment&rft.au=Dontsova%2C+K%3BSteefel%2C+C+I%3BDesilets%2C+S%3BThompson%2C+A%3BChorover%2C+J%3BAnonymous&rft.aulast=Dontsova&rft.aufirst=K&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A243&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - analog simulation; Arizona; basalts; Biosphere 2; chemical weathering; CrunchFlow 2007; experimental studies; geochemistry; igneous rocks; mass transfer; Oracle Arizona; reactive transport; secondary minerals; simulation; slopes; transport; United States; volcanic rocks; water-rock interaction; weathering ER - TY - JOUR T1 - Three-dimensional imaging of tight gas host rock; observations and conceptual models AN - 919632693; 2012-017090 JF - Geochimica et Cosmochimica Acta AU - Silin, Dmitriy AU - Kneafsey, Timothy J AU - Ajo-Franklin, Jonathan B AU - Nico, Peter AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Pergamon, Oxford VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - fractured materials KW - imagery KW - natural gas KW - data processing KW - sandstone KW - petroleum KW - production KW - rock mechanics KW - reservoir rocks KW - observations KW - sedimentary rocks KW - digital simulation KW - experimental studies KW - numerical models KW - three-dimensional models KW - shale KW - tight gas KW - porosity KW - theoretical models KW - reservoir properties KW - computed tomography data KW - clastic rocks KW - SEM data KW - permeability KW - 30:Engineering geology KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/919632693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Three-dimensional+imaging+of+tight+gas+host+rock%3B+observations+and+conceptual+models&rft.au=Silin%2C+Dmitriy%3BKneafsey%2C+Timothy+J%3BAjo-Franklin%2C+Jonathan+B%3BNico%2C+Peter%3BAnonymous&rft.aulast=Silin&rft.aufirst=Dmitriy&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A962&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - clastic rocks; computed tomography data; data processing; digital simulation; experimental studies; fractured materials; imagery; natural gas; numerical models; observations; permeability; petroleum; porosity; production; reservoir properties; reservoir rocks; rock mechanics; sandstone; sedimentary rocks; SEM data; shale; theoretical models; three-dimensional models; tight gas ER - TY - JOUR T1 - Direct write assembly of calcium phosphate scaffolds using a water-based hydrogel AN - 918066461; 16181697 AB - The development of materials to support bone regeneration requires flexible fabrication technologies able to tailor chemistry and architecture for specific applications. In this work we describe the preparation of ceramic-based inks for robotic-assisted deposition (robocasting) using Pluronic registered F-127 solutions. This approach allows the preparation of pseudoplastic inks with solid contents ranging between 30 and 50 vol.%, enabling them to flow through a narrow printing nozzle while supporting the weight of the printed structure. Ink formulation does not require manipulation of the pH or the use of highly volatile organic components. Therefore, the approach can be used to prepare materials with a wide range of compositions, and here we use it to build hydroxyapatite (HA), beta -tricalcium phosphate ( beta -TCP) and biphasic (HA/ beta -TCP) structures. The flow of the inks is controlled by the Pluronic registered content and the particle size distribution of the ceramic powders. The use of wide size distributions favors flow through the narrow printing nozzles and we have been able to use printing nozzles as narrow as 100 mu m in diameter, applying relatively low printing pressures. The microporosity of the printed lines increases with increasing Pluronic registered content and lower sintering temperatures. Microporosity can play a key role in determining the biological response to the materials, but it also affects the strength of the structure. JF - Acta Biomaterialia AU - Franco, J AU - Hunger, P AU - Launey, ME AU - Tomsia AU - Saiz, E AD - Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, esaiz@lbl.gov Y1 - 2010/01// PY - 2010 DA - Jan 2010 SP - 218 EP - 228 PB - Elsevier B.V., The Boulevard Kidlington Oxford OX5 1GB United Kingdom VL - 6 IS - 1 SN - 1742-7061, 1742-7061 KW - Biotechnology and Bioengineering Abstracts KW - Calcium phosphates KW - Scaffolds KW - Strength KW - Sintering KW - Computer-assisted fabrication KW - Particle size KW - Temperature effects KW - Powder KW - Printing KW - Bone growth KW - scaffolds KW - Ceramics KW - Hydroxyapatite KW - hydrogels KW - Volatiles KW - Regeneration KW - Pressure KW - pH effects KW - tricalcium phosphate KW - Calcium phosphate KW - Size distribution KW - W 30920:Tissue Engineering UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918066461?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Biomaterialia&rft.atitle=Direct+write+assembly+of+calcium+phosphate+scaffolds+using+a+water-based+hydrogel&rft.au=Franco%2C+J%3BHunger%2C+P%3BLauney%2C+ME%3BTomsia%3BSaiz%2C+E&rft.aulast=Franco&rft.aufirst=J&rft.date=2010-01-01&rft.volume=6&rft.issue=1&rft.spage=218&rft.isbn=&rft.btitle=&rft.title=Acta+Biomaterialia&rft.issn=17427061&rft_id=info:doi/10.1016%2Fj.actbio.2009.06.031 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Temperature effects; Particle size; Powder; Printing; Bone growth; scaffolds; Ceramics; Hydroxyapatite; hydrogels; Volatiles; Regeneration; Pressure; pH effects; Size distribution; Calcium phosphate; tricalcium phosphate DO - http://dx.doi.org/10.1016/j.actbio.2009.06.031 ER - TY - JOUR T1 - Uranium isotopic systematics of the 300 Area (Hanford, WA) groundwater plume and U-contaminated sediments AN - 916837143; 2012-012174 JF - Geochimica et Cosmochimica Acta AU - Christensen, John N AU - McKinley, James P AU - Conrad, Mark E AU - Stoliker, Deborah AU - Dresel, P Evan AU - DePaolo, Donald J AU - Zachara, John M AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - contaminant plumes KW - isotopes KW - unsaturated zone KW - chemical waste KW - radioactive waste KW - ground water KW - geochemical indicators KW - radioactive isotopes KW - sediments KW - hydrodynamics KW - water pollution KW - mobility KW - geochemistry KW - concentration KW - experimental studies KW - Washington KW - isotope ratios KW - Columbia River KW - pollution KW - Hanford Site KW - hydrochemistry KW - metals KW - uranium KW - U-238/U-234 KW - waste disposal KW - U-238/U-235 KW - U-238/U-236 KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916837143?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Uranium+isotopic+systematics+of+the+300+Area+%28Hanford%2C+WA%29+groundwater+plume+and+U-contaminated+sediments&rft.au=Christensen%2C+John+N%3BMcKinley%2C+James+P%3BConrad%2C+Mark+E%3BStoliker%2C+Deborah%3BDresel%2C+P+Evan%3BDePaolo%2C+Donald+J%3BZachara%2C+John+M%3BAnonymous&rft.aulast=Christensen&rft.aufirst=John&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A179&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - actinides; chemical waste; Columbia River; concentration; contaminant plumes; experimental studies; geochemical indicators; geochemistry; ground water; Hanford Site; hydrochemistry; hydrodynamics; isotope ratios; isotopes; metals; mobility; pollution; radioactive isotopes; radioactive waste; sediments; U-238/U-234; U-238/U-235; U-238/U-236; United States; unsaturated zone; uranium; Washington; waste disposal; water pollution ER - TY - JOUR T1 - Variable isotope fractionation during microbial metabolism of lactate AN - 916836962; 2012-012191 JF - Geochimica et Cosmochimica Acta AU - Conrad, Mark E AU - Bill, Markus AU - Yang, Li AU - Han, Ruyang AU - Beller, Harry R AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - metabolites KW - isotope fractionation KW - isotopes KW - stable isotopes KW - ground water KW - lactate KW - carbon KW - sediments KW - water pollution KW - geochemistry KW - chromium KW - experimental studies KW - Washington KW - metabolism KW - isotope ratios KW - C-13/C-12 KW - pollution KW - Hanford Site KW - organic compounds KW - organic acids KW - biogenic processes KW - metals KW - microorganisms KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/916836962?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Variable+isotope+fractionation+during+microbial+metabolism+of+lactate&rft.au=Conrad%2C+Mark+E%3BBill%2C+Markus%3BYang%2C+Li%3BHan%2C+Ruyang%3BBeller%2C+Harry+R%3BAnonymous&rft.aulast=Conrad&rft.aufirst=Mark&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A187&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - biogenic processes; C-13/C-12; carbon; chromium; experimental studies; geochemistry; ground water; Hanford Site; isotope fractionation; isotope ratios; isotopes; lactate; metabolism; metabolites; metals; microorganisms; organic acids; organic compounds; pollution; sediments; stable isotopes; United States; Washington; water pollution ER - TY - JOUR T1 - Low-frequency dielectric spectroscopy measurements on sulfate-reducing bacteria cell suspensions AN - 907926048; 2012-002516 JF - Geochimica et Cosmochimica Acta AU - Zhang, Chi AU - Prodan, Camelia AU - Slater, Lee AU - Bendiganavale, Ashwini AU - Ntarlagiannis, Dimitrios AU - Hubbard, Susan AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - biomineralization KW - experimental studies KW - electrical properties KW - sulfate ion KW - suspended materials KW - porous materials KW - biogenic processes KW - dielectric properties KW - bacteria KW - spectra KW - transformations KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/907926048?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Low-frequency+dielectric+spectroscopy+measurements+on+sulfate-reducing+bacteria+cell+suspensions&rft.au=Zhang%2C+Chi%3BProdan%2C+Camelia%3BSlater%2C+Lee%3BBendiganavale%2C+Ashwini%3BNtarlagiannis%2C+Dimitrios%3BHubbard%2C+Susan%3BAnonymous&rft.aulast=Zhang&rft.aufirst=Chi&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A1202&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bacteria; biogenic processes; biomineralization; dielectric properties; electrical properties; experimental studies; geochemistry; porous materials; spectra; sulfate ion; suspended materials; transformations ER - TY - JOUR T1 - Observation of playa salts as nuclei in orographic wave clouds AN - 894810462; 2011-082534 AB - During the Ice in Clouds Experiment-Layer Clouds (ICE-L), dry lakebed, or playa, salts from the Great Basin region of the United States were observed as cloud nuclei in orographic wave clouds over Wyoming. Using a counterflow virtual impactor in series with a single-particle mass spectrometer, sodium-potassium-magnesium-calcium-chloride salts were identified as residues of cloud droplets. Importantly, these salts produced similar mass spectral signatures to playa salts with elevated cloud condensation nuclei (CCN) efficiencies close to sea salt. Using a suite of chemical characterization instrumentation, the playa salts were observed to be internally mixed with oxidized organics, presumably produced by cloud processing, as well as carbonate. These salt particles were enriched as residues of large droplets (>19 mu m) compared to smaller droplets (>7 mu m). In addition, a small fraction of silicate-containing playa salts were hypothesized to be important in the observed heterogeneous ice nucleation processes. While the high CCN activity of sea salt has been demonstrated to play an important role in cloud formation in marine environments, this study provides direct evidence of the importance of playa salts in cloud formation in continental North America has not been shown previously. Studies are needed to model and quantify the impact of playas on climate globally, particularly because of the abundance of playas and expected increases in the frequency and intensity of dust storms in the future due to climate and land use changes. JF - Journal of Geophysical Research AU - Pratt, Kerri A AU - Twohy, Cynthia H AU - Murphy, Shane M AU - Moffet, Ryan C AU - Heymsfield, Andrew J AU - Gaston, Cassandra J AU - DeMott, Paul J AU - Field, Paul R AU - Henn, Tobias R AU - Rogers, David C AU - Gilles, Mary K AU - Seinfeld, John H AU - Prather, Kimberly A Y1 - 2010 PY - 2010 DA - 2010 EP - Citation D15301 PB - American Geophysical Union, Washington, DC VL - 115 IS - D15 SN - 0148-0227, 0148-0227 KW - United States KW - silicates KW - halides KW - calcium KW - magnesium KW - Basin and Range Province KW - mass spectra KW - playas KW - transport KW - chlorides KW - spectra KW - chemical composition KW - clouds KW - North America KW - alkaline earth metals KW - condensation KW - Great Basin KW - alkali metals KW - atmosphere KW - sodium KW - Wyoming KW - Ice in Clouds Experiment-Layer Clouds KW - metals KW - potassium KW - aerosols KW - wind transport KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/894810462?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=Observation+of+playa+salts+as+nuclei+in+orographic+wave+clouds&rft.au=Pratt%2C+Kerri+A%3BTwohy%2C+Cynthia+H%3BMurphy%2C+Shane+M%3BMoffet%2C+Ryan+C%3BHeymsfield%2C+Andrew+J%3BGaston%2C+Cassandra+J%3BDeMott%2C+Paul+J%3BField%2C+Paul+R%3BHenn%2C+Tobias+R%3BRogers%2C+David+C%3BGilles%2C+Mary+K%3BSeinfeld%2C+John+H%3BPrather%2C+Kimberly+A&rft.aulast=Pratt&rft.aufirst=Kerri&rft.date=2010-01-01&rft.volume=115&rft.issue=D15&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2009JD013606 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 85 N1 - PubXState - DC N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aerosols; alkali metals; alkaline earth metals; atmosphere; Basin and Range Province; calcium; chemical composition; chlorides; clouds; condensation; Great Basin; halides; Ice in Clouds Experiment-Layer Clouds; magnesium; mass spectra; metals; North America; playas; potassium; silicates; sodium; spectra; transport; United States; wind transport; Wyoming DO - http://dx.doi.org/10.1029/2009JD013606 ER - TY - JOUR T1 - Geochemistry of clathrate-derived methane in Arctic Ocean waters AN - 886910000; 2011-074673 AB - Alterations to the composition of seawater are estimated for microbial oxidation of methane from large polar clathrate destabilizations, which may arise in the coming century. Gas fluxes are taken from porous flow models of warming Arctic sediment. Plume spread parameters are then used to bracket the volume of dilution. Consumption stoichiometries for the marine methanotrophs are based on growth efficiency and elemental/enzyme composition data. The nutritional demand implied by extra CH (sub 4) removal is compared with supply in various high latitude water masses. For emissions sized to fit the shelf break, reaction potential begins at one hundred micromolar and falls to order ten a thousand kilometers downstream. Oxygen loss and carbon dioxide production are sufficient respectively to hypoxify and acidify poorly ventilated basins. Nitrogen and the monooxygenase transition metals may be depleted in some locations as well. Deprivation is implied relative to existing ecosystems, along with dispersal of the excess dissolved gas. Physical uncertainties are inherent in the clathrate abundance, patch size, outflow buoyancy and mixing rate. Microbial ecology is even less defined but may involve nutrient recycling and anaerobic oxidizers. JF - Geophysical Research Letters AU - Elliott, Scott AU - Reagan, Matthew AU - Moridis, George AU - Smith, Philip Cameron Y1 - 2010 PY - 2010 DA - 2010 EP - Citation L12607 PB - American Geophysical Union, Washington, DC VL - 37 IS - 12 SN - 0094-8276, 0094-8276 KW - ocean circulation KW - sea water KW - methane KW - oxygen KW - numerical models KW - biochemistry KW - oxidation KW - aliphatic hydrocarbons KW - alkanes KW - clathrates KW - climate change KW - carbon dioxide KW - nutrients KW - organic compounds KW - biogenic processes KW - chemical reactions KW - hydrocarbons KW - Arctic Ocean KW - anaerobic environment KW - pH KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/886910000?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Geochemistry+of+clathrate-derived+methane+in+Arctic+Ocean+waters&rft.au=Elliott%2C+Scott%3BReagan%2C+Matthew%3BMoridis%2C+George%3BSmith%2C+Philip+Cameron&rft.aulast=Elliott&rft.aufirst=Scott&rft.date=2010-01-01&rft.volume=37&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2010GL043369 L2 - http://www.agu.org/journals/gl/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 27 N1 - PubXState - DC N1 - Document feature - 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - GPRLAJ N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; anaerobic environment; Arctic Ocean; biochemistry; biogenic processes; carbon dioxide; chemical reactions; clathrates; climate change; hydrocarbons; methane; numerical models; nutrients; ocean circulation; organic compounds; oxidation; oxygen; pH; sea water DO - http://dx.doi.org/10.1029/2010GL043369 ER - TY - JOUR T1 - Reactivity of iron oxide nanoparticles AN - 886906712; 2011-072491 JF - Acta Mineralogica-Petrographica. Abstract Series AU - Erbs, J J AU - Burrows, N D AU - Yuwono, V M AU - Berquo, T AU - Banerjee, S K AU - Lowry, G V AU - Reinsch, B C AU - Gilbert, B AU - Penn, R L A2 - Zaharia, Luminita A2 - Kis, Annamaria A2 - Topa, Boglarka A2 - Papp, Gabor A2 - Weiszberg, Tamas G. Y1 - 2010 PY - 2010 DA - 2010 SP - 843 PB - University of Szeged, Department of Mineralogy, Geochemistry and Petrology, Szeged VL - 6 SN - 1589-4835, 1589-4835 KW - experimental studies KW - iron oxides KW - pollutants KW - physicochemical properties KW - pollution KW - mineral-water interface KW - TEM data KW - reactivity KW - magnetic susceptibility KW - oxides KW - nanoparticles KW - kinetics KW - geochemistry KW - aquatic environment KW - mineral surface KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/886906712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Mineralogica-Petrographica.+Abstract+Series&rft.atitle=Reactivity+of+iron+oxide+nanoparticles&rft.au=Erbs%2C+J+J%3BBurrows%2C+N+D%3BYuwono%2C+V+M%3BBerquo%2C+T%3BBanerjee%2C+S+K%3BLowry%2C+G+V%3BReinsch%2C+B+C%3BGilbert%2C+B%3BPenn%2C+R+L&rft.aulast=Erbs&rft.aufirst=J&rft.date=2010-01-01&rft.volume=6&rft.issue=&rft.spage=843&rft.isbn=&rft.btitle=&rft.title=Acta+Mineralogica-Petrographica.+Abstract+Series&rft.issn=15894835&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 20th general meeting of the International Mineralogical Association N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - aquatic environment; experimental studies; geochemistry; iron oxides; kinetics; magnetic susceptibility; mineral surface; mineral-water interface; nanoparticles; oxides; physicochemical properties; pollutants; pollution; reactivity; TEM data ER - TY - JOUR T1 - Reactive ferrous iron in titanomagnetite (Fe (sub 3-x) Ti (sub x) O (sub 4) ) nanomaterials AN - 886905773; 2011-072493 JF - Acta Mineralogica-Petrographica. Abstract Series AU - Pearce, C I AU - Qafoku, O AU - Liu, J AU - Arenholz, E AU - Heald, S M AU - Felmy, A R AU - Ilton, E S AU - Droubay, T AU - Henderson, C M B AU - Rosso, K M A2 - Zaharia, Luminita A2 - Kis, Annamaria A2 - Topa, Boglarka A2 - Papp, Gabor A2 - Weiszberg, Tamas G. Y1 - 2010 PY - 2010 DA - 2010 SP - 844 PB - University of Szeged, Department of Mineralogy, Geochemistry and Petrology, Szeged VL - 6 SN - 1589-4835, 1589-4835 KW - United States KW - X-ray diffraction data KW - coordination KW - bonding KW - iron KW - titanomagnetite KW - XANES spectra KW - laboratory studies KW - reactivity KW - sediments KW - oxides KW - spectra KW - X-ray photoelectron spectra KW - synthesis KW - Mossbauer spectra KW - ulvospinel KW - experimental studies KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - solid solution KW - X-ray spectra KW - TEM data KW - ferrous iron KW - metals KW - EXAFS data KW - crystal chemistry KW - nanoparticles KW - 01C:Mineralogy of non-silicates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/886905773?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Mineralogica-Petrographica.+Abstract+Series&rft.atitle=Reactive+ferrous+iron+in+titanomagnetite+%28Fe+%28sub+3-x%29+Ti+%28sub+x%29+O+%28sub+4%29+%29+nanomaterials&rft.au=Pearce%2C+C+I%3BQafoku%2C+O%3BLiu%2C+J%3BArenholz%2C+E%3BHeald%2C+S+M%3BFelmy%2C+A+R%3BIlton%2C+E+S%3BDroubay%2C+T%3BHenderson%2C+C+M+B%3BRosso%2C+K+M&rft.aulast=Pearce&rft.aufirst=C&rft.date=2010-01-01&rft.volume=6&rft.issue=&rft.spage=844&rft.isbn=&rft.btitle=&rft.title=Acta+Mineralogica-Petrographica.+Abstract+Series&rft.issn=15894835&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 20th general meeting of the International Mineralogical Association N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 2 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - bonding; coordination; crystal chemistry; EXAFS data; experimental studies; ferrous iron; Hanford Site; iron; laboratory studies; metals; Mossbauer spectra; nanoparticles; oxides; pollutants; pollution; reactivity; sediments; solid solution; spectra; synthesis; TEM data; titanomagnetite; ulvospinel; United States; Washington; X-ray diffraction data; X-ray photoelectron spectra; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Following electron transfer pathways and products in iron oxide nanoparticles AN - 886905771; 2011-072492 JF - Acta Mineralogica-Petrographica. Abstract Series AU - Gilbert, B AU - Katz, J E AU - Zhang, X AU - Attenkofer, K AU - Zhang, H Z AU - Rosso, K M AU - Banfield, J F AU - Falcone, R AU - Waychunas, G A A2 - Zaharia, Luminita A2 - Kis, Annamaria A2 - Topa, Boglarka A2 - Papp, Gabor A2 - Weiszberg, Tamas G. Y1 - 2010 PY - 2010 DA - 2010 SP - 843 PB - University of Szeged, Department of Mineralogy, Geochemistry and Petrology, Szeged VL - 6 SN - 1589-4835, 1589-4835 KW - experimental studies KW - iron oxides KW - oxyhydroxides KW - defects KW - X-ray spectra KW - iron KW - ferrous iron KW - molecular structure KW - hydroxides KW - ferric iron KW - reactivity KW - chemical reactions KW - metals KW - oxides KW - spectra KW - reduction KW - transformations KW - crystal chemistry KW - nanoparticles KW - geochemistry KW - Eh KW - electrons KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/886905771?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Acta+Mineralogica-Petrographica.+Abstract+Series&rft.atitle=Following+electron+transfer+pathways+and+products+in+iron+oxide+nanoparticles&rft.au=Gilbert%2C+B%3BKatz%2C+J+E%3BZhang%2C+X%3BAttenkofer%2C+K%3BZhang%2C+H+Z%3BRosso%2C+K+M%3BBanfield%2C+J+F%3BFalcone%2C+R%3BWaychunas%2C+G+A&rft.aulast=Gilbert&rft.aufirst=B&rft.date=2010-01-01&rft.volume=6&rft.issue=&rft.spage=843&rft.isbn=&rft.btitle=&rft.title=Acta+Mineralogica-Petrographica.+Abstract+Series&rft.issn=15894835&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - 20th general meeting of the International Mineralogical Association N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - chemical reactions; crystal chemistry; defects; Eh; electrons; experimental studies; ferric iron; ferrous iron; geochemistry; hydroxides; iron; iron oxides; metals; molecular structure; nanoparticles; oxides; oxyhydroxides; reactivity; reduction; spectra; transformations; X-ray spectra ER - TY - JOUR T1 - Systems biology approach to bioremediation; omics and hydrobiogeochemical processes AN - 885318351; 590866-79 JF - Geochimica et Cosmochimica Acta AU - Hazen, Terry C AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - hydrology KW - technology KW - radioactivity KW - biochemistry KW - pollution KW - bioremediation KW - genome KW - remediation KW - biogenic processes KW - geochemistry KW - biology KW - microorganisms KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885318351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Systems+biology+approach+to+bioremediation%3B+omics+and+hydrobiogeochemical+processes&rft.au=Hazen%2C+Terry+C%3BAnonymous&rft.aulast=Hazen&rft.aufirst=Terry&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A390&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt2010.org/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - PubXState - NY N1 - Last updated - 2012-07-20 N1 - SubjectsTermNotLitGenreText - biochemistry; biogenic processes; biology; bioremediation; genome; geochemistry; hydrology; microorganisms; pollution; radioactivity; remediation; technology ER - TY - JOUR T1 - Solution scattering combined with crystallography and computation; defining dynamic macromolecular structures AN - 885318136; 590866-50 JF - Geochimica et Cosmochimica Acta AU - Hammel, Michal AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - SAXS method KW - small-angle neutron scattering method KW - numerical models KW - lattice KW - techniques KW - molecular structure KW - SANS method KW - theoretical models KW - applications KW - crystallography KW - nanoparticles KW - small-angle X-ray scattering method KW - microorganisms KW - 01A:General mineralogy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/885318136?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Solution+scattering+combined+with+crystallography+and+computation%3B+defining+dynamic+macromolecular+structures&rft.au=Hammel%2C+Michal%3BAnonymous&rft.aulast=Hammel&rft.aufirst=Michal&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A375&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt2010.org/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 2 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2012-07-20 N1 - SubjectsTermNotLitGenreText - applications; crystallography; lattice; microorganisms; molecular structure; nanoparticles; numerical models; SANS method; SAXS method; small-angle neutron scattering method; small-angle X-ray scattering method; techniques; theoretical models ER - TY - JOUR T1 - Applications of LA-ICP-MS in geoanalysis; new technologies and future perspectives AN - 884415512; 2011-068280 JF - Geochimica et Cosmochimica Acta AU - Russo, R E AU - Gonzalez, J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - chemical analysis KW - technology KW - inductively coupled plasma methods KW - laser methods KW - laser ablation KW - mass spectroscopy KW - current research KW - applications KW - spectroscopy KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884415512?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Applications+of+LA-ICP-MS+in+geoanalysis%3B+new+technologies+and+future+perspectives&rft.au=Russo%2C+R+E%3BGonzalez%2C+J%3BAnonymous&rft.aulast=Russo&rft.aufirst=R&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A893&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 4 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - applications; chemical analysis; current research; inductively coupled plasma methods; laser ablation; laser methods; mass spectroscopy; spectroscopy; technology ER - TY - JOUR T1 - Influence of MgO nanoparticle size on available surface area for carbonation AN - 884415471; 2011-068276 JF - Geochimica et Cosmochimica Acta AU - Ruminski, A M AU - Urban, J J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - sorption KW - fixation KW - experimental studies KW - desorption KW - carbon sequestration KW - grain size KW - adsorption KW - carbon dioxide KW - laboratory studies KW - magnesium oxides KW - oxides KW - synthesis KW - TGA data KW - nanoparticles KW - geochemistry KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884415471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Influence+of+MgO+nanoparticle+size+on+available+surface+area+for+carbonation&rft.au=Ruminski%2C+A+M%3BUrban%2C+J+J%3BAnonymous&rft.aulast=Ruminski&rft.aufirst=A&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A891&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 2 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - adsorption; carbon dioxide; carbon sequestration; desorption; experimental studies; fixation; geochemistry; grain size; laboratory studies; magnesium oxides; nanoparticles; oxides; sorption; synthesis; TGA data ER - TY - JOUR T1 - Brillouin scattering and radial X-ray diffraction of polycrystalline MgO to 30 GPa AN - 884412816; 2011-067919 JF - Geophysical Research Abstracts AU - Marquardt, Hauke AU - Gleason, Arianna AU - Speziale, Sergio AU - Chen, Bin AU - Miyagi, Lowell AU - Jeanloz, Raymond AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - EGU2010 EP - 8937 PB - Copernicus GmbH on behalf of the European Geosciences Union (EGU), Katlenburg-Lindau VL - 12 SN - 1029-7006, 1029-7006 KW - experimental studies KW - pressure KW - Brillouin spectra KW - X-ray diffraction data KW - textures KW - grain size KW - structural analysis KW - mantle KW - high pressure KW - preferred orientation KW - laboratory studies KW - magnesium oxides KW - polycrystalline materials KW - oxides KW - spectra KW - anvil cells KW - wave dispersion KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/884412816?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Abstracts&rft.atitle=Brillouin+scattering+and+radial+X-ray+diffraction+of+polycrystalline+MgO+to+30+GPa&rft.au=Marquardt%2C+Hauke%3BGleason%2C+Arianna%3BSpeziale%2C+Sergio%3BChen%2C+Bin%3BMiyagi%2C+Lowell%3BJeanloz%2C+Raymond%3BAnonymous&rft.aulast=Marquardt&rft.aufirst=Hauke&rft.date=2010-01-01&rft.volume=12&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Abstracts&rft.issn=10297006&rft_id=info:doi/ L2 - http://www.copernicus.org/EGU/gra/gra.html LA - English DB - GeoRef N1 - Conference title - European Geosciences Union general assembly 2010 N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - anvil cells; Brillouin spectra; experimental studies; grain size; high pressure; laboratory studies; magnesium oxides; mantle; oxides; polycrystalline materials; preferred orientation; pressure; spectra; structural analysis; textures; wave dispersion; X-ray diffraction data ER - TY - JOUR T1 - Interaktion zwischen hydraulischen und biogeochemischen Prozessen bei stimulierten biologischen Sanierungsexperimenten am Testfeld Rifle, Colorado, USA TT - Interaction between hydraulic and biogeochemical processes during simulated bioremediation experiments at the Rifle test site, Colorado, U.S.A. AN - 872121969; 2011-052639 JF - Schriftenreihe der Deutschen Gesellschaft fuer Geowissenschaften AU - Englert, Andreas AU - Hubbard, Susan S AU - Li, Li AU - Kowalsky, Michael B AU - Williams, Kenneth H AU - Spane, Frank A AU - Newcomer, Darrell R AU - Long, Philip E AU - Steefel, Carl I Y1 - 2010 PY - 2010 DA - 2010 SP - 45 PB - Schweizerbart, Stuttgart VL - 67 SN - 1860-1782, 1860-1782 KW - United States KW - Garfield County Colorado KW - halogens KW - bromide ion KW - simulation KW - iron KW - remediation KW - ground water KW - Rifle Colorado KW - fluid injection KW - transport KW - reactive transport KW - reduction KW - breakthrough curves KW - water pollution KW - esters KW - acetates KW - sulfates KW - solutes KW - pollution KW - bromine KW - bioremediation KW - organic compounds KW - metals KW - uranium KW - Colorado KW - actinides KW - field studies KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/872121969?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Schriftenreihe+der+Deutschen+Gesellschaft+fuer+Geowissenschaften&rft.atitle=Interaktion+zwischen+hydraulischen+und+biogeochemischen+Prozessen+bei+stimulierten+biologischen+Sanierungsexperimenten+am+Testfeld+Rifle%2C+Colorado%2C+USA&rft.au=Englert%2C+Andreas%3BHubbard%2C+Susan+S%3BLi%2C+Li%3BKowalsky%2C+Michael+B%3BWilliams%2C+Kenneth+H%3BSpane%2C+Frank+A%3BNewcomer%2C+Darrell+R%3BLong%2C+Philip+E%3BSteefel%2C+Carl+I&rft.aulast=Englert&rft.aufirst=Andreas&rft.date=2010-01-01&rft.volume=67&rft.issue=&rft.spage=45&rft.isbn=9783510492137&rft.btitle=&rft.title=Schriftenreihe+der+Deutschen+Gesellschaft+fuer+Geowissenschaften&rft.issn=18601782&rft_id=info:doi/ LA - German DB - GeoRef N1 - Conference title - Grundwasser furr die Zukunft; Tagung der Fachsektion Hydrogeologie in der Deutschen Gesellschaft fuer Geowissenschaften N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 3 N1 - Last updated - 2016-05-19 N1 - SubjectsTermNotLitGenreText - acetates; actinides; bioremediation; breakthrough curves; bromide ion; bromine; Colorado; esters; field studies; fluid injection; Garfield County Colorado; ground water; halogens; iron; metals; organic compounds; pollution; reactive transport; reduction; remediation; Rifle Colorado; simulation; solutes; sulfates; transport; United States; uranium; water pollution ER - TY - JOUR T1 - Multidimensional Profiling of Cell Surface Proteins and Nuclear Markers AN - 867748465; 14652806 AB - Cell membrane proteins play an important role in tissue architecture and cell-cell communication. We hypothesize that segmentation and multidimensional characterization of the distribution of cell membrane proteins, on a cell-by-cell basis, enable improved classification of treatment groups and identify important characteristics that can otherwise be hidden. We have developed a series of computational steps to 1) delineate cell membrane protein signals and associate them with a specific nucleus; 2) compute a coupled representation of the multiplexed DNA content with membrane proteins; 3) rank computed features associated with such a multidimensional representation; 4) visualize selected features for comparative evaluation through heatmaps; and 5) discriminate between treatment groups in an optimal fashion. The novelty of our method is in the segmentation of the membrane signal and the multidimensional representation of phenotypic signature on a cell-by-cell basis. To test the utility of this method, the proposed computational steps were applied to images of cells that have been irradiated with different radiation qualities in the presence and absence of other small molecules. These samples are labeled for their DNA content and E-cadherin membrane proteins. We demonstrate that multidimensional representations of cell-by-cell phenotypes improve predictive and visualization capabilities among different treatment groups, and identify hidden variables. JF - IEEE/ACM Transactions on Computational Biology and Bioinformatics AU - Han, Ju AU - Chang, Hang AU - Andarawewa, Kumari AU - Yaswen, Paul AU - Barcellos-Hoff, Mary Helen AU - Parvin, Bahram AD - Lawrence Berkeley National Laboratory, Berkeley Y1 - 2010/01// PY - 2010 DA - Jan 2010 SP - 80 EP - 90 PB - Institute of Electrical and Electronics Engineers, Inc., 3 Park Avenue, 17th Fl New York NY 10016-5997 USA VL - 7 IS - 1 SN - 1545-5963, 1545-5963 KW - Biotechnology and Bioengineering Abstracts KW - Novelty KW - Cell surface KW - Image processing KW - Membrane proteins KW - Computer applications KW - Cell membranes KW - Radiation KW - E- double prime Cadherin KW - DNA KW - Segmentation KW - Bioinformatics KW - Nuclei KW - Intercellular signalling KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/867748465?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE%2FACM+Transactions+on+Computational+Biology+and+Bioinformatics&rft.atitle=Multidimensional+Profiling+of+Cell+Surface+Proteins+and+Nuclear+Markers&rft.au=Han%2C+Ju%3BChang%2C+Hang%3BAndarawewa%2C+Kumari%3BYaswen%2C+Paul%3BBarcellos-Hoff%2C+Mary+Helen%3BParvin%2C+Bahram&rft.aulast=Han&rft.aufirst=Ju&rft.date=2010-01-01&rft.volume=7&rft.issue=1&rft.spage=80&rft.isbn=&rft.btitle=&rft.title=IEEE%2FACM+Transactions+on+Computational+Biology+and+Bioinformatics&rft.issn=15455963&rft_id=info:doi/10.1109%2FTCBB.2008.134 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Cell surface; Novelty; Image processing; Membrane proteins; Computer applications; Cell membranes; Radiation; E- double prime Cadherin; Segmentation; DNA; Bioinformatics; Nuclei; Intercellular signalling DO - http://dx.doi.org/10.1109/TCBB.2008.134 ER - TY - JOUR T1 - Integrating Data Clustering and Visualization for the Analysis of 3D Gene Expression Data AN - 867743968; 14652802 AB - The recent development of methods for extracting precise measurements of spatial gene expression patterns from three-dimensional (3D) image data opens the way for new analyses of the complex gene regulatory networks controlling animal development. We present an integrated visualization and analysis framework that supports user-guided data clustering to aid exploration of these new complex data sets. The interplay of data visualization and clustering-based data classification leads to improved visualization and enables a more detailed analysis than previously possible. We discuss 1) the integration of data clustering and visualization into one framework, 2) the application of data clustering to 3D gene expression data, 3) the evaluation of the number of clusters k in the context of 3D gene expression clustering, and 4) the improvement of overall analysis quality via dedicated postprocessing of clustering results based on visualization. We discuss the use of this framework to objectively define spatial pattern boundaries and temporal profiles of genes and to analyze how mRNA patterns are controlled by their regulatory transcription factors. JF - IEEE/ACM Transactions on Computational Biology and Bioinformatics AU - Rubel, Oliver AU - Weber, Gunther H AU - Huang, Min-Yu AU - Bethel, EWes AU - Biggin, Mark D AU - Fowlkes, Charless C AU - Luengo Hendriks, Cris L AU - Keranen, Soile VE AU - Eisen, Michael B AU - Knowles, David W AU - Malik, Jitendra AU - Hagen, Hans AU - Hamann, Bernd AD - University of Kaiserslautern, Institute for Data Analysis and Visualization Lawrence Berkeley National Laboratory, Davis Berkeley Y1 - 2010/01// PY - 2010 DA - Jan 2010 SP - 64 EP - 79 PB - Institute of Electrical and Electronics Engineers, Inc., 3 Park Avenue, 17th Fl New York NY 10016-5997 USA VL - 7 IS - 1 SN - 1545-5963, 1545-5963 KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts KW - spatial expression pattern KW - bioinformatics visualization KW - multimodal visualization KW - integrating Infovis/Scivis KW - visual data mining KW - three dimensional gene expression KW - data clustering KW - cluster visualization KW - gene expression pattern KW - temporal expression variation KW - gene regulation KW - Gene expression KW - Integration KW - Computer programs KW - Data processing KW - Transcription factors KW - Boundaries KW - Bioinformatics KW - Computer applications KW - G 07730:Development & Cell Cycle KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/867743968?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=IEEE%2FACM+Transactions+on+Computational+Biology+and+Bioinformatics&rft.atitle=Integrating+Data+Clustering+and+Visualization+for+the+Analysis+of+3D+Gene+Expression+Data&rft.au=Rubel%2C+Oliver%3BWeber%2C+Gunther+H%3BHuang%2C+Min-Yu%3BBethel%2C+EWes%3BBiggin%2C+Mark+D%3BFowlkes%2C+Charless+C%3BLuengo+Hendriks%2C+Cris+L%3BKeranen%2C+Soile+VE%3BEisen%2C+Michael+B%3BKnowles%2C+David+W%3BMalik%2C+Jitendra%3BHagen%2C+Hans%3BHamann%2C+Bernd&rft.aulast=Rubel&rft.aufirst=Oliver&rft.date=2010-01-01&rft.volume=7&rft.issue=1&rft.spage=64&rft.isbn=&rft.btitle=&rft.title=IEEE%2FACM+Transactions+on+Computational+Biology+and+Bioinformatics&rft.issn=15455963&rft_id=info:doi/10.1109%2FTCBB.2008.49 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-05-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Gene expression; Computer programs; Integration; Data processing; Transcription factors; Boundaries; Bioinformatics; Computer applications DO - http://dx.doi.org/10.1109/TCBB.2008.49 ER - TY - JOUR T1 - Modified region growing for stereo of slant and textureless surfaces AN - 864947920; 2011-040369 JF - Lecture Notes in Computer Science AU - Rohith, M V AU - Somanath, Gowri AU - Kambhamettu, Chandra AU - Geiger, Cathleen A AU - Finnegan, David AU - Bebis, George AU - Boyle, Richard AU - Koracin, Darko AU - Parvin, Bharam Y1 - 2010 PY - 2010 DA - 2010 SP - 666 EP - 677 PB - Springer-Verlag, Berlin VL - 6453 IS - Part 1 SN - 0302-9743, 0302-9743 KW - land cover KW - snow cover KW - cartography KW - data processing KW - ice cover KW - pixels KW - terrains KW - ice KW - snow KW - digital simulation KW - geomorphology KW - algorithms KW - landscapes KW - 23:Geomorphology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864947920?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Lecture+Notes+in+Computer+Science&rft.atitle=Modified+region+growing+for+stereo+of+slant+and+textureless+surfaces&rft.au=Rohith%2C+M+V%3BSomanath%2C+Gowri%3BKambhamettu%2C+Chandra%3BGeiger%2C+Cathleen+A%3BFinnegan%2C+David%3BBebis%2C+George%3BBoyle%2C+Richard%3BKoracin%2C+Darko%3BParvin%2C+Bharam&rft.aulast=Rohith&rft.aufirst=M&rft.date=2010-01-01&rft.volume=6453&rft.issue=Part+1&rft.spage=666&rft.isbn=&rft.btitle=&rft.title=Lecture+Notes+in+Computer+Science&rft.issn=03029743&rft_id=info:doi/ L2 - http://www.springerlink.com/content/0302-9743/ LA - English DB - GeoRef N1 - Conference title - Sixth international symposium on Visual computing N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 15 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; cartography; data processing; digital simulation; geomorphology; ice; ice cover; land cover; landscapes; pixels; snow; snow cover; terrains ER - TY - JOUR T1 - A Type IIA chondrule fragment from Comet 81P/Wild2 in Stardust track C2052,2,74 AN - 864946833; 2011-037674 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Butterworth, A L AU - Gainsforth, Z AU - Bauville, A AU - Bonal, L AU - Brownlee, D E AU - Fakra, S C AU - Huss, G R AU - Joswiak, D AU - Kunz, M AU - Marcus, M A AU - Nagashima, K AU - Ogliore, R C AU - Tamura, N AU - Telus, M AU - Tyliszczak, T AU - Westphal, A J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - Abstract 2446 PB - Lunar and Planetary Science Conference, Houston, TX VL - 41 KW - silicates KW - oligoclase KW - particle tracks KW - olivine group KW - recrystallization KW - XANES spectra KW - synchrotron radiation KW - pyroxene group KW - oxygen fugacity KW - olivine KW - orthosilicates KW - X-ray fluorescence spectra KW - Wild Comet KW - oxides KW - framework silicates KW - spectra KW - Type IIA chondrules KW - chain silicates KW - plagioclase KW - Stardust Mission KW - spinel KW - chromite KW - X-ray spectra KW - TEM data KW - nesosilicates KW - comets KW - iron sulfides KW - fragments KW - chondrules KW - aerogel KW - sulfides KW - feldspar group KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864946833?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=A+Type+IIA+chondrule+fragment+from+Comet+81P%2FWild2+in+Stardust+track+C2052%2C2%2C74&rft.au=Butterworth%2C+A+L%3BGainsforth%2C+Z%3BBauville%2C+A%3BBonal%2C+L%3BBrownlee%2C+D+E%3BFakra%2C+S+C%3BHuss%2C+G+R%3BJoswiak%2C+D%3BKunz%2C+M%3BMarcus%2C+M+A%3BNagashima%2C+K%3BOgliore%2C+R+C%3BTamura%2C+N%3BTelus%2C+M%3BTyliszczak%2C+T%3BWestphal%2C+A+J%3BAnonymous&rft.aulast=Butterworth&rft.aufirst=A&rft.date=2010-01-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2446.pdf LA - English DB - GeoRef N1 - Conference title - Forty-first lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on July 1, 2010 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - aerogel; chain silicates; chondrules; chromite; comets; feldspar group; fragments; framework silicates; iron sulfides; nesosilicates; oligoclase; olivine; olivine group; orthosilicates; oxides; oxygen fugacity; particle tracks; plagioclase; pyroxene group; recrystallization; silicates; spectra; spinel; Stardust Mission; sulfides; synchrotron radiation; TEM data; Type IIA chondrules; Wild Comet; X-ray fluorescence spectra; X-ray spectra; XANES spectra ER - TY - JOUR T1 - The FeSi phase diagram to 150 GPa AN - 864945046; 2011-041260 AB - The melting curve of FeSi has been determined to 150 GPa in the laser-heated diamond anvil cell (LH-DAC) on the basis of discontinuities in the power versus temperature function. A multianvil experimental cross-check at 12 GPa using textural criteria as a proxy for melting is in good agreement with our LH-DAC results. The melting point of FeSi reaches approximately 4000 K at the core mantle boundary and an extrapolated value of 4900 K at the inner-core boundary (ICB). We also present the melting curve as determined by the Lindemann melting law; this agrees well with our experimental curve to 70 GPa and then diverges to higher temperatures, reaching 6200 K at the ICB. These temperatures are substantially higher than previous LH-DAC determinations. The boundary of the epsilon -FeSi --> CsCl-FeSi subsolidus transition has also been determined by synchrotron-based X-ray diffraction at high pressures, and the results confirm a negative Clapeyron slope for the transition. We conclude that if present, FeSi is likely to be solid within the D" layer and is unlikely to be present within the inner core for any plausible bulk core silicon content. JF - Journal of Geophysical Research AU - Lord, O T AU - Walter, M J AU - Dobson, D P AU - Armstrong, L AU - Clark, S M AU - Kleppe, A Y1 - 2010 PY - 2010 DA - 2010 EP - Citation B06208 PB - American Geophysical Union, Washington, DC VL - 115 IS - B6 SN - 0148-0227, 0148-0227 KW - silicates KW - phase diagram KW - pressure KW - X-ray diffraction data KW - mantle KW - phase transitions KW - silicon KW - high pressure KW - core-mantle boundary KW - iron KW - outer core KW - lower mantle KW - melting KW - discontinuities KW - metals KW - core KW - alloys KW - anvil cells KW - D double prime layer KW - P-T conditions KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/864945046?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research&rft.atitle=The+FeSi+phase+diagram+to+150+GPa&rft.au=Lord%2C+O+T%3BWalter%2C+M+J%3BDobson%2C+D+P%3BArmstrong%2C+L%3BClark%2C+S+M%3BKleppe%2C+A&rft.aulast=Lord&rft.aufirst=O&rft.date=2010-01-01&rft.volume=115&rft.issue=B6&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research&rft.issn=01480227&rft_id=info:doi/10.1029%2F2009JB006528 L2 - http://www.agu.org/journals/jgr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2011-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - alloys; anvil cells; core; core-mantle boundary; D double prime layer; discontinuities; high pressure; iron; lower mantle; mantle; melting; metals; outer core; P-T conditions; phase diagram; phase transitions; pressure; silicates; silicon; X-ray diffraction data DO - http://dx.doi.org/10.1029/2009JB006528 ER - TY - JOUR T1 - Carbon-XANES analyses of Q-gas rich fractions from the Allende Meteorite AN - 861988074; 2011-035660 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Yabuta, H AU - Amari, S AU - Matsuda, J AU - Hasegawa, N AU - Kilcoyne, A L D AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - Abstract 1202 PB - Lunar and Planetary Science Conference, Houston, TX VL - 41 KW - carbonaceous composition KW - aromatic carbon KW - stony meteorites KW - isotopes KW - carbonaceous chondrites KW - phase Q KW - CV chondrites KW - xenon KW - X-ray spectra KW - stable isotopes KW - Allende Meteorite KW - XANES spectra KW - meteorites KW - noble gases KW - carbon KW - Xe-132 KW - spectra KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861988074?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Carbon-XANES+analyses+of+Q-gas+rich+fractions+from+the+Allende+Meteorite&rft.au=Yabuta%2C+H%3BAmari%2C+S%3BMatsuda%2C+J%3BHasegawa%2C+N%3BKilcoyne%2C+A+L+D%3BAnonymous&rft.aulast=Yabuta&rft.aufirst=H&rft.date=2010-01-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1202.pdf LA - English DB - GeoRef N1 - Conference title - Forty-first lunar and planetary science conference XLI N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 10 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 24, 2010 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Allende Meteorite; aromatic carbon; carbon; carbonaceous chondrites; carbonaceous composition; chondrites; CV chondrites; isotopes; meteorites; noble gases; phase Q; spectra; stable isotopes; stony meteorites; X-ray spectra; XANES spectra; Xe-132; xenon ER - TY - JOUR T1 - Comparing the oxidation state of Fe in comet 81P/Wild 2 and CP-IDPs AN - 861987307; 2011-035615 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ogliore, R C AU - Butterworth, A L AU - Fakra, S C AU - Gainsforth, Z AU - Marcus, M A AU - Westphal, A J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - Abstract 1929 PB - Lunar and Planetary Science Conference, Houston, TX VL - 41 KW - hydrates KW - iron oxides KW - metallic phase KW - interplanetary dust KW - iron KW - XANES spectra KW - ferric iron KW - Wild Comet KW - oxides KW - spectra KW - oxidation state KW - atmospheric entry KW - oxidation KW - porous materials KW - X-ray spectra KW - ferrous iron KW - hydration KW - cosmic dust KW - comets KW - metals KW - heating KW - sulfides KW - maghemite KW - magnetite KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861987307?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Comparing+the+oxidation+state+of+Fe+in+comet+81P%2FWild+2+and+CP-IDPs&rft.au=Ogliore%2C+R+C%3BButterworth%2C+A+L%3BFakra%2C+S+C%3BGainsforth%2C+Z%3BMarcus%2C+M+A%3BWestphal%2C+A+J%3BAnonymous&rft.aulast=Ogliore&rft.aufirst=R&rft.date=2010-01-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2010/pdf/1929.pdf LA - English DB - GeoRef N1 - Conference title - Forty-first lunar and planetary science conference XLI N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 12 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 23, 2010 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - atmospheric entry; comets; cosmic dust; ferric iron; ferrous iron; heating; hydrates; hydration; interplanetary dust; iron; iron oxides; maghemite; magnetite; metallic phase; metals; oxidation; oxidation state; oxides; porous materials; spectra; sulfides; Wild Comet; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Isotopic and chemical variation of organic nanoglobules in primitive meteorites AN - 861986992; 2011-035664 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - De Gregorio, Bradley T AU - Nittler, L R AU - Stroud, R M AU - Alexander, C M O'D AU - Bassim, N AU - Cody, G D AU - Kilcoyne, A L D AU - Milam, S AU - Nuevo, M AU - Sandford, S A AU - Zega, T J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - Abstract 2108 PB - Lunar and Planetary Science Conference, Houston, TX VL - 41 KW - stony meteorites KW - Orgueil Meteorite KW - ion probe data KW - isotopes KW - mass spectra KW - Tagish Lake Meteorite KW - Elephant Moraine Meteorites KW - stable isotopes KW - nitrogen KW - Murchison Meteorite KW - XANES spectra KW - meteorites KW - insoluble residues KW - carbon KW - spectra KW - chondrites KW - chemical composition KW - Bells Meteorite KW - CI chondrites KW - N-15/N-14 KW - isotope ratios KW - GRO 95577 KW - C-13/C-12 KW - nanoglobules KW - carbonaceous chondrites KW - X-ray spectra KW - organic compounds KW - EET 92042 KW - NanoSIMS KW - CM chondrites KW - Grosvenor Mountains Meteorites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/861986992?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Isotopic+and+chemical+variation+of+organic+nanoglobules+in+primitive+meteorites&rft.au=De+Gregorio%2C+Bradley+T%3BNittler%2C+L+R%3BStroud%2C+R+M%3BAlexander%2C+C+M+O%27D%3BBassim%2C+N%3BCody%2C+G+D%3BKilcoyne%2C+A+L+D%3BMilam%2C+S%3BNuevo%2C+M%3BSandford%2C+S+A%3BZega%2C+T+J%3BAnonymous&rft.aulast=De+Gregorio&rft.aufirst=Bradley&rft.date=2010-01-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2108.pdf LA - English DB - GeoRef N1 - Conference title - Forty-first lunar and planetary science conference XLI N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Accessed on Sept. 24, 2010 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - Bells Meteorite; C-13/C-12; carbon; carbonaceous chondrites; chemical composition; chondrites; CI chondrites; CM chondrites; EET 92042; Elephant Moraine Meteorites; GRO 95577; Grosvenor Mountains Meteorites; insoluble residues; ion probe data; isotope ratios; isotopes; mass spectra; meteorites; Murchison Meteorite; N-15/N-14; nanoglobules; NanoSIMS; nitrogen; organic compounds; Orgueil Meteorite; spectra; stable isotopes; stony meteorites; Tagish Lake Meteorite; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Comparison of the organic composition of cometary samples with residues formed from the UV irradiation of astrophysical ice analogs AN - 859727717; 2011-030804 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Milam, Stefanie N AU - Nuevo, M AU - Sandford, S A AU - Cody, G D AU - Kilcoyne, A L D AU - Stroud, R M AU - De Gregorio, B T AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - Abstract 2078 PB - Lunar and Planetary Science Conference, Houston, TX VL - 41 KW - experimental studies KW - irradiation KW - oxygen KW - Stardust Mission KW - X-ray spectra KW - ultraviolet radiation KW - nitrogen KW - XANES spectra KW - laboratory studies KW - cometary particles KW - organic compounds KW - comets KW - electromagnetic radiation KW - ice KW - carbon KW - Wild Comet KW - spectra KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/859727717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Comparison+of+the+organic+composition+of+cometary+samples+with+residues+formed+from+the+UV+irradiation+of+astrophysical+ice+analogs&rft.au=Milam%2C+Stefanie+N%3BNuevo%2C+M%3BSandford%2C+S+A%3BCody%2C+G+D%3BKilcoyne%2C+A+L+D%3BStroud%2C+R+M%3BDe+Gregorio%2C+B+T%3BAnonymous&rft.aulast=Milam&rft.aufirst=Stefanie&rft.date=2010-01-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2078.pdf LA - English DB - GeoRef N1 - Conference title - Forty-first lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 8 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 24, 2010 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbon; cometary particles; comets; electromagnetic radiation; experimental studies; ice; irradiation; laboratory studies; nitrogen; organic compounds; oxygen; spectra; Stardust Mission; ultraviolet radiation; Wild Comet; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Photoemission electron microscopy of Stardust cometary foils AN - 859727711; 2011-030797 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Ogliore, R C AU - Butterworth, A L AU - Doran, A AU - Gainsforth, Z AU - Scholl, A AU - Westphal, A J AU - Young, A AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - Abstract 2572 PB - Lunar and Planetary Science Conference, Houston, TX VL - 41 KW - silicates KW - methods KW - magnesium KW - impact features KW - thermal alteration KW - olivine group KW - iron KW - XANES spectra KW - orthosilicates KW - Wild Comet KW - spectra KW - alkaline earth metals KW - Stardust Mission KW - amorphous materials KW - X-ray spectra KW - forsterite KW - nesosilicates KW - comets KW - metals KW - photoemission electron microscopy KW - heating KW - impact craters KW - electron microscopy KW - cometary dust KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/859727711?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Photoemission+electron+microscopy+of+Stardust+cometary+foils&rft.au=Ogliore%2C+R+C%3BButterworth%2C+A+L%3BDoran%2C+A%3BGainsforth%2C+Z%3BScholl%2C+A%3BWestphal%2C+A+J%3BYoung%2C+A%3BAnonymous&rft.aulast=Ogliore&rft.aufirst=R&rft.date=2010-01-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2572.pdf LA - English DB - GeoRef N1 - Conference title - Forty-first lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 2 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 24, 2010 N1 - Last updated - 2012-06-07 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; amorphous materials; cometary dust; comets; electron microscopy; forsterite; heating; impact craters; impact features; iron; magnesium; metals; methods; nesosilicates; olivine group; orthosilicates; photoemission electron microscopy; silicates; spectra; Stardust Mission; thermal alteration; Wild Comet; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Mantle helium signature of the Karakoram Fault is that of an active plate-boundary AN - 855197076; 2011-026248 JF - Open-File Report - U. S. Geological Survey AU - Klemperer, Simon L AU - Kennedy, B Mack AU - Sastry, Siva R AU - Makovsky, Yizhaq AU - Harinarayana, T Y1 - 2010 PY - 2010 DA - 2010 EP - unpaginated PB - U. S. Geological Survey, Reston, VA SN - 0196-1497, 0196-1497 KW - Far East KW - plate boundaries KW - isotopes KW - isotope ratios KW - mantle KW - stable isotopes KW - Mohorovicic discontinuity KW - depth KW - Karakoram Fault KW - suture zones KW - plate tectonics KW - Xizang China KW - noble gases KW - helium KW - He-4/He-3 KW - Asia KW - USGS KW - China KW - 18:Solid-earth geophysics KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/855197076?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Open-File+Report+-+U.+S.+Geological+Survey&rft.atitle=Mantle+helium+signature+of+the+Karakoram+Fault+is+that+of+an+active+plate-boundary&rft.au=Klemperer%2C+Simon+L%3BKennedy%2C+B+Mack%3BSastry%2C+Siva+R%3BMakovsky%2C+Yizhaq%3BHarinarayana%2C+T&rft.aulast=Klemperer&rft.aufirst=Simon&rft.date=2010-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Open-File+Report+-+U.+S.+Geological+Survey&rft.issn=01961497&rft_id=info:doi/ L2 - http://pubs.usgs.gov/of/2010/1099/ https://pubs.er.usgs.gov/browse/usgs-publications/OFR LA - English DB - GeoRef N1 - Conference title - 25th Himalaya-Karakoram-Tibet workshop N1 - Copyright - GeoRef, Copyright 2016, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 9 N1 - PubXState - VA N1 - Document feature - illus. incl. geol. sketch map N1 - SuppNotes - Accessed on Feb. 1, 2011 N1 - Last updated - 2016-09-16 N1 - CODEN - XGROAG N1 - SubjectsTermNotLitGenreText - Asia; China; depth; Far East; He-4/He-3; helium; isotope ratios; isotopes; Karakoram Fault; mantle; Mohorovicic discontinuity; noble gases; plate boundaries; plate tectonics; stable isotopes; suture zones; USGS; Xizang China ER - TY - JOUR T1 - Radiative forcing and temperature response to changes in urban albedos and associated CO sub(2) offsets AN - 851465717; 14120133 AB - The two main forcings that can counteract to some extent the positive forcings from greenhouse gases from pre-industrial times to present day are the aerosol and related aerosol-cloud forcings, and the radiative response to changes in surface albedo. Here, we quantify the change in radiative forcing and land surface temperature that may be obtained by increasing the albedos of roofs and pavements in urban areas in temperate and tropical regions of the globe by 0.1. Using the catchment land surface model (the land model coupled to the GEOS-5 Atmospheric General Circulation Model), we quantify the change in the total outgoing (outgoing shortwave+longwave) radiation and land surface temperature to a 0.1 increase in urban albedos for all global land areas. The global average increase in the total outgoing radiation was 0.5 W m super(-2), and temperature decreased by ~0.008 K for an average 0.003 increase in surface albedo. These averages represent all global land areas where data were available from the land surface model used and are for the boreal summer (June--July--August). For the continental US the total outgoing radiation increased by 2.3 W m super(-2), and land surface temperature decreased by ~0.03 K for an average 0.01 increase in surface albedo. Based on these forcings, the expected emitted CO sub(2) offset for a plausible 0.25 and 0.15 increase in albedos of roofs and pavements, respectively, for all global urban areas, was found to be ~57 Gt CO sub(2). A more meaningful evaluation of the impacts of urban albedo increases on global climate and the expected CO sub(2) offsets would require simulations which better characterize urban surfaces and represent the full annual cycle. JF - Environmental Research Letters AU - Menon, Surabi AU - Akbari, Hashem AU - Mahanama, Sarith AU - Sednev, Igor AU - Levinson, Ronnen AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, MD, USA Present address: Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, QC, Canada Y1 - 2010/01// PY - 2010 DA - Jan 2010 SP - 014005 PB - Institute of Physics Publishing Inc., The Public Ledger Building, Suite 929 Philadelphia PA 19106 USA VL - 5 IS - 1 SN - 1748-9326, 1748-9326 KW - Pollution Abstracts KW - Aerosols KW - albedo KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/851465717?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Research+Letters&rft.atitle=Radiative+forcing+and+temperature+response+to+changes+in+urban+albedos+and+associated+CO+sub%282%29+offsets&rft.au=Menon%2C+Surabi%3BAkbari%2C+Hashem%3BMahanama%2C+Sarith%3BSednev%2C+Igor%3BLevinson%2C+Ronnen&rft.aulast=Menon&rft.aufirst=Surabi&rft.date=2010-01-01&rft.volume=5&rft.issue=1&rft.spage=014005&rft.isbn=&rft.btitle=&rft.title=Environmental+Research+Letters&rft.issn=17489326&rft_id=info:doi/10.1088%2F1748-9326%2F5%2F1%2F014005 L2 - http://iopscience.iop.org/1748-9326/5/1/014005 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-02-01 N1 - Last updated - 2014-02-11 N1 - SubjectsTermNotLitGenreText - albedo DO - http://dx.doi.org/10.1088/1748-9326/5/1/014005 ER - TY - JOUR T1 - Accounting for the water impacts of ethanol production AN - 851465382; 14120148 AB - Biofuels account for 1--2% of global transportation fuel and their share is projected to continue rising, with potentially serious consequences for water resources. However, current literature does not present sufficient spatial resolution to characterize this localized effect. We used a coupled agro-climatic and life cycle assessment model to estimate the water resource impacts of bioenergy expansion scenarios at a county-level resolution. The study focused on the case of California, with its range of agroecological conditions, water scarcity, and aggressive alternative fuel incentive policies. Life cycle water consumption for ethanol production in California is up to 1000 times that of gasoline due to a cultivation phase that consumes over 99% of life cycle water use for agricultural biofuels. This consumption varies by up to 60% among different feedstocks and by over 350% across regions in California. Rigorous policy analysis requires spatially resolved modeling of water resource impacts and careful consideration of the various metrics that might act to constrain technology and policy options. JF - Environmental Research Letters AU - Fingerman, Kevin R AU - Torn, Margaret S AU - O'Hare, Michael H AU - Kammen, Daniel M AD - Energy and Resources Group, University of California, Berkeley, 310 Barrows Hall, Berkeley, CA 94720-3050, USA Lawrence Berkeley National Laboratory, One Cyclotron Road, 90-1141, Berkeley, CA 94720, USA Goldman School of Public Policy, University of California, Berkeley, 2607 Hearst Avenue, Berkeley, CA 94720-7320, USA Y1 - 2010/01// PY - 2010 DA - Jan 2010 SP - 014020 PB - Institute of Physics Publishing Inc., The Public Ledger Building, Suite 929 Philadelphia PA 19106 USA VL - 5 IS - 1 SN - 1748-9326, 1748-9326 KW - Aqualine Abstracts; Water Resources Abstracts KW - Fuel technology KW - life cycle analysis KW - Gasoline KW - Water resources KW - Transportation KW - Water Policy KW - Assessments KW - USA, California KW - Fuel KW - Ethanol KW - biofuels KW - scarcity KW - Accounting KW - Model Studies KW - life cycle KW - Life Cycles KW - Water Resources KW - Cultivation KW - AQ 00001:Water Resources and Supplies KW - SW 4050:Water law and institutions UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/851465382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Research+Letters&rft.atitle=Accounting+for+the+water+impacts+of+ethanol+production&rft.au=Fingerman%2C+Kevin+R%3BTorn%2C+Margaret+S%3BO%27Hare%2C+Michael+H%3BKammen%2C+Daniel+M&rft.aulast=Fingerman&rft.aufirst=Kevin&rft.date=2010-01-01&rft.volume=5&rft.issue=1&rft.spage=014020&rft.isbn=&rft.btitle=&rft.title=Environmental+Research+Letters&rft.issn=17489326&rft_id=info:doi/10.1088%2F1748-9326%2F5%2F1%2F014020 L2 - http://iopscience.iop.org/1748-9326/5/1/014020 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-02-01 N1 - Last updated - 2015-02-12 N1 - SubjectsTermNotLitGenreText - Fuel technology; Transportation; life cycle; Gasoline; life cycle analysis; biofuels; scarcity; Water resources; Ethanol; Assessments; Water Policy; Life Cycles; Accounting; Fuel; Cultivation; Model Studies; Water Resources; USA, California DO - http://dx.doi.org/10.1088/1748-9326/5/1/014020 ER - TY - JOUR T1 - Bacterial microcompartments. AN - 754027325; 20825353 AB - Bacterial microcompartments (BMCs) are organelles composed entirely of protein. They promote specific metabolic processes by encapsulating and colocalizing enzymes with their substrates and cofactors, by protecting vulnerable enzymes in a defined microenvironment, and by sequestering toxic or volatile intermediates. Prototypes of the BMCs are the carboxysomes of autotrophic bacteria. However, structures of similar polyhedral shape are being discovered in an ever-increasing number of heterotrophic bacteria, where they participate in the utilization of specialty carbon and energy sources. Comparative genomics reveals that the potential for this type of compartmentalization is widespread across bacterial phyla and suggests that genetic modules encoding BMCs are frequently laterally transferred among bacteria. The diverse functions of these BMCs suggest that they contribute to metabolic innovation in bacteria in a broad range of environments. JF - Annual review of microbiology AU - Kerfeld, Cheryl A AU - Heinhorst, Sabine AU - Cannon, Gordon C AD - U.S. Department of Energy-Joint Genome Institute, Walnut Creek, California 94598, USA. ckerfeld@lbl.gov Y1 - 2010 PY - 2010 DA - 2010 SP - 391 EP - 408 VL - 64 KW - Bacterial Proteins KW - 0 KW - Enzymes KW - Index Medicus KW - Genes, Bacterial KW - Bacterial Proteins -- genetics KW - Multigene Family KW - Gene Transfer, Horizontal KW - Bacterial Proteins -- metabolism KW - Enzymes -- metabolism KW - Enzymes -- genetics KW - Bacteria -- ultrastructure KW - Bacteria -- metabolism KW - Bacteria -- genetics KW - Organelles -- metabolism KW - Organelles -- genetics KW - Organelles -- ultrastructure UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754027325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+review+of+microbiology&rft.atitle=Bacterial+microcompartments.&rft.au=Kerfeld%2C+Cheryl+A%3BHeinhorst%2C+Sabine%3BCannon%2C+Gordon+C&rft.aulast=Kerfeld&rft.aufirst=Cheryl&rft.date=2010-01-01&rft.volume=64&rft.issue=&rft.spage=391&rft.isbn=&rft.btitle=&rft.title=Annual+review+of+microbiology&rft.issn=1545-3251&rft_id=info:doi/10.1146%2Fannurev.micro.112408.134211 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-12-13 N1 - Date created - 2010-09-09 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1146/annurev.micro.112408.134211 ER - TY - JOUR T1 - Optical far- and near-field femtosecond laser ablation of Si for nanoscale chemical analysis AN - 753633878; 13324294 AB - Extending spatial resolution in laser-based chemical analysis to the nanoscale becomes increasingly important as nanoscience and nanotechnology develop. Implementation of femtosecond laser pulses arises as a basic strategy for increasing resolution since it is associated with spatially localized material damage. In this work we study femtosecond laser far- and near-field processing of silicon (Si) at two distinct wavelengths (400 and 800 nm), for nanoscale chemical analysis. By tightly focusing femtosecond laser beams in the far-field, we were able to produce sub-micrometer craters. In order to further reduce the crater size, similar experiments were performed in the near-field through sub-wavelength apertures, resulting in the formation of sub-30-nm craters. Laser-induced breakdown spectroscopy (LIBS) was used for chemical analysis with a goal to identify the minimum crater size from which spectral emission could be measured. Emission from sub-micrometer craters (full width at half maximum) was possible, which are among the smallest ever reported for femtosecond LIBS. JF - Analytical and Bioanalytical Chemistry AU - Zorba, Vassilia AU - Mao, Xianglei AU - Russo, Richard E AD - Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, rerusso@lbl.go PY - 2010 SP - 173 EP - 180 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 396 IS - 1 SN - 1618-2642, 1618-2642 KW - Aqualine Abstracts; Water Resources Abstracts KW - Damage KW - Craters KW - Silicon KW - Chemical Analysis KW - Spectroscopy KW - Wavelengths KW - craters KW - Emissions KW - Lasers KW - Ablation KW - nanotechnology KW - AQ 00001:Water Resources and Supplies KW - SW 0810:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/753633878?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Analytical+and+Bioanalytical+Chemistry&rft.atitle=Optical+far-+and+near-field+femtosecond+laser+ablation+of+Si+for+nanoscale+chemical+analysis&rft.au=Zorba%2C+Vassilia%3BMao%2C+Xianglei%3BRusso%2C+Richard+E&rft.aulast=Zorba&rft.aufirst=Vassilia&rft.date=2010-01-01&rft.volume=396&rft.issue=1&rft.spage=173&rft.isbn=&rft.btitle=&rft.title=Analytical+and+Bioanalytical+Chemistry&rft.issn=16182642&rft_id=info:doi/10.1007%2Fs00216-009-3136-7 L2 - http://www.springerlink.com/content/5178717mk61757t1/?p=5b24f0a81e0948669e6f67411caa17e3&pi=15 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2015-12-01 N1 - Last updated - 2016-01-21 N1 - SubjectsTermNotLitGenreText - Silicon; craters; Emissions; Lasers; Spectroscopy; nanotechnology; Damage; Craters; Chemical Analysis; Ablation; Wavelengths DO - http://dx.doi.org/10.1007/s00216-009-3136-7 ER - TY - JOUR T1 - The integrated microbial genomes system: an expanding comparative analysis resource AN - 746085874; 12952836 AB - The integrated microbial genomes (IMG) system serves as a community resource for comparative analysis of publicly available genomes in a comprehensive integrated context. IMG contains both draft and complete microbial genomes integrated with other publicly available genomes from all three domains of life, together with a large number of plasmids and viruses. IMG provides tools and viewers for analyzing and reviewing the annotations of genes and genomes in a comparative context. Since its first release in 2005, IMG's data content and analytical capabilities have been constantly expanded through regular releases. Several companion IMG systems have been set up in order to serve domain specific needs, such as expert review of genome annotations. IMG is available at http://img.jgi.doe.gov. JF - Nucleic Acids Research AU - Markowitz, Victor M AU - Chen, I-Min A AU - Palaniappan, Krishna AU - Chu, Ken AU - Szeto, Ernest AU - Grechkin, Yuri AU - Ratner, Anna AU - Anderson, Iain AU - Lykidis, Athanasios AU - Mavromatis, Konstantinos AU - Ivanova, Natalia N AU - Kyrpides, Nikos C AD - Biological Data Management and Technology Center, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley Y1 - 2010/01// PY - 2010 DA - Jan 2010 SP - D382 EP - D390 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 38 IS - suppl_1 SN - 0305-1048, 0305-1048 KW - Genetics Abstracts; Virology & AIDS Abstracts; Microbiology Abstracts A: Industrial & Applied Microbiology; Biochemistry Abstracts 2: Nucleic Acids KW - Genomes KW - Data processing KW - Reviews KW - Plasmids KW - G 07880:Human Genetics KW - A 01490:Miscellaneous KW - V 22320:Replication KW - N 14810:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746085874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nucleic+Acids+Research&rft.atitle=The+integrated+microbial+genomes+system%3A+an+expanding+comparative+analysis+resource&rft.au=Markowitz%2C+Victor+M%3BChen%2C+I-Min+A%3BPalaniappan%2C+Krishna%3BChu%2C+Ken%3BSzeto%2C+Ernest%3BGrechkin%2C+Yuri%3BRatner%2C+Anna%3BAnderson%2C+Iain%3BLykidis%2C+Athanasios%3BMavromatis%2C+Konstantinos%3BIvanova%2C+Natalia+N%3BKyrpides%2C+Nikos+C&rft.aulast=Markowitz&rft.aufirst=Victor&rft.date=2010-01-01&rft.volume=38&rft.issue=suppl_1&rft.spage=D382&rft.isbn=&rft.btitle=&rft.title=Nucleic+Acids+Research&rft.issn=03051048&rft_id=info:doi/10.1093%2Fnar%2Fgkp887 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2015-10-15 N1 - SubjectsTermNotLitGenreText - Genomes; Data processing; Reviews; Plasmids DO - http://dx.doi.org/10.1093/nar/gkp887 ER - TY - JOUR T1 - Homologous recombination contributes to the repair of DNA double-strand breaks induced by high-energy iron ions. AN - 734218201; 20041757 AB - To test the contribution of homologous recombinational repair (HRR) in repairing DNA damage sites induced by high-energy iron ions, we used (1) HRR-deficient rodent cells carrying a deletion in the RAD51D gene and (2) syngeneic human cells impaired for HRR by RAD51D or RAD51 knockdown using RNA interference. We found that in response to exposure to iron ions, HRR contributed to cell survival in rodent cells and that HRR deficiency abrogated RAD51 focus formation. Complementation of the HRR defect by human RAD51D rescues both enhanced cytotoxicity and RAD51 focus formation. For human cells irradiated with iron ions, cell survival was decreased, and in p53 mutant cells, the levels of mutagenesis were increased when HRR was impaired. Human cells synchronized in S phase exhibited a more pronounced resistance to iron ions compared with cells in G(1) phase, and this increase in radioresistance was diminished by RAD51 knockdown. These results indicate a role for RAD51-mediated DNA repair (i.e. HRR) in removing a fraction of clustered lesions induced by charged-particle radiation. Our results are the first to directly show the requirement for an intact HRR pathway in human cells in ensuring DNA repair and cell survival after exposure to high-energy high-LET radiation. JF - Radiation research AU - Zafar, Faria AU - Seidler, Sara B AU - Kronenberg, Amy AU - Schild, David AU - Wiese, Claudia AD - Lawrence Berkeley National Laboratory, Life Sciences Division, Berkeley, California 94720, USA. Y1 - 2010/01// PY - 2010 DA - January 2010 SP - 27 EP - 39 VL - 173 IS - 1 KW - Tumor Suppressor Protein p53 KW - 0 KW - Iron KW - E1UOL152H7 KW - Thymidine Kinase KW - EC 2.7.1.21 KW - Rad51 Recombinase KW - EC 2.7.7.- KW - Index Medicus KW - Space life sciences KW - Animals KW - G2 Phase -- radiation effects KW - Cell Survival -- genetics KW - Cricetulus KW - Humans KW - S Phase -- genetics KW - Mutation -- radiation effects KW - Tumor Suppressor Protein p53 -- metabolism KW - S Phase -- radiation effects KW - Mutagenesis -- radiation effects KW - Base Sequence KW - Gene Knockdown Techniques KW - G2 Phase -- genetics KW - CHO Cells KW - Rad51 Recombinase -- deficiency KW - Cell Survival -- radiation effects KW - Rad51 Recombinase -- genetics KW - Thymidine Kinase -- genetics KW - Radiation Tolerance -- genetics KW - Cricetinae KW - DNA Repair -- genetics KW - Recombination, Genetic KW - DNA Breaks, Double-Stranded -- radiation effects KW - Iron -- toxicity UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/734218201?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Radiation+research&rft.atitle=Homologous+recombination+contributes+to+the+repair+of+DNA+double-strand+breaks+induced+by+high-energy+iron+ions.&rft.au=Zafar%2C+Faria%3BSeidler%2C+Sara+B%3BKronenberg%2C+Amy%3BSchild%2C+David%3BWiese%2C+Claudia&rft.aulast=Zafar&rft.aufirst=Faria&rft.date=2010-01-01&rft.volume=173&rft.issue=1&rft.spage=27&rft.isbn=&rft.btitle=&rft.title=Radiation+research&rft.issn=1938-5404&rft_id=info:doi/10.1667%2FRR1910.1 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-01-14 N1 - Date created - 2009-12-31 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1667/RR1910.1 ER - TY - JOUR T1 - From artificial atoms to nanocrystal molecules: preparation and properties of more complex nanostructures. AN - 733183147; 20055683 AB - Quantum dots, which have found widespread use in fields such as biomedicine, photovoltaics, and electronics, are often called artificial atoms due to their size-dependent physical properties. Here this analogy is extended to consider artificial nanocrystal molecules, formed from well-defined groupings of plasmonically or electronically coupled single nanocrystals. Just as a hydrogen molecule has properties distinct from two uncoupled hydrogen atoms, a key feature of nanocrystal molecules is that they exhibit properties altered from those of the component nanoparticles due to coupling. The nature of the coupling between nanocrystal atoms and its response to vibrations and deformations of the nanocrystal molecule bonds are of particular interest. We discuss synthetic approaches, predicted and observed physical properties, and prospects and challenges toward this new class of materials. JF - Annual review of physical chemistry AU - Choi, Charina L AU - Alivisatos, A Paul AD - Department of Chemistry, and Material Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA. Y1 - 2010 PY - 2010 DA - 2010 SP - 369 EP - 389 VL - 61 KW - Index Medicus KW - Physical Phenomena KW - Microscopy, Electron, Transmission KW - Nanostructures -- ultrastructure KW - Nanostructures -- chemistry KW - Nanoparticles -- ultrastructure KW - Nanoparticles -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/733183147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Annual+review+of+physical+chemistry&rft.atitle=From+artificial+atoms+to+nanocrystal+molecules%3A+preparation+and+properties+of+more+complex+nanostructures.&rft.au=Choi%2C+Charina+L%3BAlivisatos%2C+A+Paul&rft.aulast=Choi&rft.aufirst=Charina&rft.date=2010-01-01&rft.volume=61&rft.issue=&rft.spage=369&rft.isbn=&rft.btitle=&rft.title=Annual+review+of+physical+chemistry&rft.issn=1545-1593&rft_id=info:doi/10.1146%2Fannurev.physchem.012809.103311 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2010-06-08 N1 - Date created - 2010-04-06 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1146/annurev.physchem.012809.103311 ER - TY - JOUR T1 - White matter integrity and cortical metabolic associations in aging and dementia AN - 57337690; 201007351 AB - Background Studies show that white matter hyperintensities, regardless of location, primarily affect frontal lobe metabolism and function. This report investigated how regional white matter integrity (measured as fractional anisotropy [FA]) relates to brain metabolism, to unravel the complex relationship between white matter changes and brain metabolism. Objective To elucidate the relationship between white matter integrity and gray matter metabolism using diffusion tensor imaging and fluorodeoxyglucose-positron emission tomography in a cohort of 16 subjects ranging from normal to demented (age, >55 years). Methods Mean FA values from white matter regions underlying the medial prefrontal, inferior-lateral prefrontal, parietal association, and posterior temporal areas and the corpus callosum were regressed with glucose metabolism (by positron emission tomography), using statistical parametric mapping (P 100). Regional cerebral glucose metabolism was the primary outcome measure. According to our hypothesis, those hypometabolic cortical regions affected by Alzheimer's disease would correlate with a lower FA of associated tracks. Results Our data show inter-regional positive correlations between FA and gray matter metabolism for the prefrontal cortex, temporal, and parietal regions. Our results suggest that left prefrontal FA is associated with left temporal and parietal metabolism. Further, left posterior temporal FA correlated with left prefrontal metabolism. Finally, bilateral parietal FA correlated with bilateral temporal metabolism. Conclusions These regions are associated with cognitive processes affected in Alzheimer's disease and cerebrovascular disease, suggesting a link with white matter degeneration and gray matter hypometabolism. Therefore, cortical function and white matter degeneration are related in aging and dementia. [Copyright Elsevier B.V.] JF - Alzheimer's & Dementia AU - Kuczynski, Beth AU - Targan, Elizabeth AU - Madison, Cindee AU - Weiner, Michael AU - Zhang, Yu AU - Reed, Bruce AU - Chui, Helena C AU - Jagust, William AD - Helen Wills Neuroscience Institute, University of California at Berkeley, and the Lawrence Berkeley National Laboratory, Berkeley, CA, USA beth.kuczynski@gmail.com Y1 - 2010/01// PY - 2010 DA - January 2010 SP - 54 EP - 62 PB - Elsevier Ltd, The Netherlands VL - 6 IS - 1 SN - 1552-5260, 1552-5260 KW - PET DTI FA Metabolism White matter Dementia Alzheimer's disease KW - Ageing KW - Cortex KW - Integrity KW - Cognitive processes KW - Alzheimer's disease KW - Metabolism KW - article UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/57337690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aassia&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Alzheimer%27s+%26+Dementia&rft.atitle=White+matter+integrity+and+cortical+metabolic+associations+in+aging+and+dementia&rft.au=Kuczynski%2C+Beth%3BTargan%2C+Elizabeth%3BMadison%2C+Cindee%3BWeiner%2C+Michael%3BZhang%2C+Yu%3BReed%2C+Bruce%3BChui%2C+Helena+C%3BJagust%2C+William&rft.aulast=Kuczynski&rft.aufirst=Beth&rft.date=2010-01-01&rft.volume=6&rft.issue=1&rft.spage=54&rft.isbn=&rft.btitle=&rft.title=Alzheimer%27s+%26+Dementia&rft.issn=15525260&rft_id=info:doi/10.1016%2Fj.jalz.2009.04.1228 LA - English DB - Applied Social Sciences Index & Abstracts (ASSIA) N1 - Date revised - 2010-04-07 N1 - Last updated - 2016-09-27 N1 - SubjectsTermNotLitGenreText - Metabolism; Alzheimer's disease; Integrity; Cortex; Ageing; Cognitive processes DO - http://dx.doi.org/10.1016/j.jalz.2009.04.1228 ER - TY - JOUR T1 - Carbon XANES analyses of Q-gas rich carbonaceous fractions obtained by freeze-thaw separation of Allende CV3 chondrite AN - 1832686399; 782692-19 JF - Abstract - Japan Geoscience Union Meeting AU - Yabuta, Hikaru AU - Sachiko, Amari AU - Matsuda, Jun-ichi AU - Hasegawa, Noriaki AU - Kilcoyne, David AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - abstract PPS009 EP - 01 PB - Japan Geoscience Union, Tokyo VL - 2010 KW - experimental studies KW - stony meteorites KW - carbonaceous chondrites KW - CV chondrites KW - X-ray spectra KW - Allende Meteorite KW - XANES spectra KW - meteorites KW - laboratory studies KW - noble gases KW - carbon KW - spectra KW - chondrites KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832686399?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstract+-+Japan+Geoscience+Union+Meeting&rft.atitle=Carbon+XANES+analyses+of+Q-gas+rich+carbonaceous+fractions+obtained+by+freeze-thaw+separation+of+Allende+CV3+chondrite&rft.au=Yabuta%2C+Hikaru%3BSachiko%2C+Amari%3BMatsuda%2C+Jun-ichi%3BHasegawa%2C+Noriaki%3BKilcoyne%2C+David%3BAnonymous&rft.aulast=Yabuta&rft.aufirst=Hikaru&rft.date=2010-01-01&rft.volume=2010&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstract+-+Japan+Geoscience+Union+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.jpgu.org/index-e/publications/abstcats.html LA - English DB - GeoRef N1 - Conference title - Japan Geoscience Union meeting, 2010 N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 4 N1 - Last updated - 2017-01-24 N1 - CODEN - #07429 N1 - SubjectsTermNotLitGenreText - Allende Meteorite; carbon; carbonaceous chondrites; chondrites; CV chondrites; experimental studies; laboratory studies; meteorites; noble gases; spectra; stony meteorites; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Wrinkles in the rare biosphere: pyrosequencing errors can lead to artificial inflation of diversity estimates AN - 1753490906; 11819124 AB - SummaryMassively parallel pyrosequencing of the small subunit (16S) ribosomal RNA gene has revealed that the extent of rare microbial populations in several environments, the 'rare biosphere', is orders of magnitude higher than previously thought. One important caveat with this method is that sequencing error could artificially inflate diversity estimates. Although the per-base error of 16S rDNA amplicon pyrosequencing has been shown to be as good as or lower than Sanger sequencing, no direct assessments of pyrosequencing errors on diversity estimates have been reported. Using only Escherichia coli MG1655 as a reference template, we find that 16S rDNA diversity is grossly overestimated unless relatively stringent read quality filtering and low clustering thresholds are applied. In particular, the common practice of removing reads with unresolved bases and anomalous read lengths is insufficient to ensure accurate estimates of microbial diversity. Furthermore, common and reproducible homopolymer length errors can result in relatively abundant spurious phylotypes further confounding data interpretation. We suggest that stringent quality-based trimming of 16S pyrotags and clustering thresholds no greater than 97% identity should be used to avoid overestimates of the rare biosphere. JF - Environmental Microbiology AU - Kunin, Victor AU - Engelbrektson, Anna AU - Ochman, Howard AU - Hugenholtz, Philip AD - 1Microbial Ecology Program, DOE Joint Genome Institute, Walnut Creek, CA 94598, USA. PY - 2010 SP - 118 EP - 123 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 12 IS - 1 SN - 1462-2912, 1462-2912 KW - Microbiology Abstracts B: Bacteriology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1753490906?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Microbiology&rft.atitle=Wrinkles+in+the+rare+biosphere%3A+pyrosequencing+errors+can+lead+to+artificial+inflation+of+diversity+estimates&rft.au=Kunin%2C+Victor%3BEngelbrektson%2C+Anna%3BOchman%2C+Howard%3BHugenholtz%2C+Philip&rft.aulast=Kunin&rft.aufirst=Victor&rft.date=2010-01-01&rft.volume=12&rft.issue=1&rft.spage=118&rft.isbn=&rft.btitle=&rft.title=Environmental+Microbiology&rft.issn=14622912&rft_id=info:doi/10.1111%2Fj.1462-2920.2009.02051.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2016-01-01 N1 - Last updated - 2016-01-06 DO - http://dx.doi.org/10.1111/j.1462-2920.2009.02051.x ER - TY - JOUR T1 - Laboratory experiments bearing on the evolution of Type IA and IIA chondrules AN - 1660633366; 2015-017690 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Richter, F M AU - Mendybaev, R A AU - Christensen, J AU - Ebel, D S AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - 2562 PB - Lunar and Planetary Science Conference, Houston, TX VL - 41 KW - isotope fractionation KW - ordinary chondrites KW - experimental studies KW - diffusion KW - stony meteorites KW - type IIA chondrules KW - alkali metals KW - LL chondrites KW - rates KW - sodium KW - melts KW - Semarkona Meteorite KW - meteorites KW - laboratory studies KW - evaporation KW - metals KW - chondrules KW - potassium KW - type IA chondrules KW - chondrites KW - chemical composition KW - depletion KW - 05B:Petrology of meteorites and tektites UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1660633366?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Laboratory+experiments+bearing+on+the+evolution+of+Type+IA+and+IIA+chondrules&rft.au=Richter%2C+F+M%3BMendybaev%2C+R+A%3BChristensen%2C+J%3BEbel%2C+D+S%3BAnonymous&rft.aulast=Richter&rft.aufirst=F&rft.date=2010-01-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2562.pdf LA - English DB - GeoRef N1 - Conference title - Forty-first lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. N1 - Date revised - 2015-01-01 N1 - Number of references - 4 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Sept. 30, 2010 N1 - Last updated - 2015-04-16 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - alkali metals; chemical composition; chondrites; chondrules; depletion; diffusion; evaporation; experimental studies; isotope fractionation; laboratory studies; LL chondrites; melts; metals; meteorites; ordinary chondrites; potassium; rates; Semarkona Meteorite; sodium; stony meteorites; type IA chondrules; type IIA chondrules ER - TY - JOUR T1 - Development of characterization technology for fault zone hydrology AN - 1618131690; 2014-084105 JF - Abstract - Japan Geoscience Union Meeting AU - Karasaki, Kenzi AU - Goto, Junichi AU - Tsuchi, Hiroyuki AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - Abstract AGE030 EP - 06 PB - Japan Geoscience Union, Tokyo VL - 2010 KW - United States KW - hydrology KW - pressure KW - Central California KW - temperature KW - ground water KW - California KW - sedimentary rocks KW - gouge KW - boreholes KW - San Francisco Bay region KW - metamorphic rocks KW - Wildcat Fault KW - cataclasites KW - faults KW - fault zones KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1618131690?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=J%2Fpsi+production+in+minimum-bias+d%2BAu+collisions+at+square+root+%28sNN%29+%3D+200+GeV+in+STAR&rft.au=Powell%2C+Christopher&rft.aulast=Powell&rft.aufirst=Christopher&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.jpgu.org/index-e/publications/abstcats.html LA - English DB - GeoRef N1 - Conference title - Japan Geoscience Union meeting, 2010 N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2014-01-01 N1 - Last updated - 2014-10-30 N1 - CODEN - #07429 N1 - SubjectsTermNotLitGenreText - boreholes; California; cataclasites; Central California; fault zones; faults; gouge; ground water; hydrology; metamorphic rocks; pressure; San Francisco Bay region; sedimentary rocks; temperature; United States; Wildcat Fault ER - TY - JOUR T1 - Downhole passive microseismic observations during continuous CO (sub 2) injection at Cranfield, Mississippi AN - 1549619517; 2014-056537 AB - The Southeast Regional Carbon Sequestration Partnership (SECARB) Phase 3 field project at Cranfield Field, Mississippi operated by Denbury Onshore LLC is conducted by the Gulf Coast Carbon Center at the Texas Bureau of Economic Geology with support from the National Energy Technology Laboratory (NETL) and the U.S. Department of Energy (DOE) and managed by the Southern States Energy Board (SSEB). In September 2009 a down-hole 12-level micro-seismic tool string was deployed to observe CO2 injection that began the following week into the Tuscaloosa Formation at 10,300 feet. The aims of the deployment were to monitor for any micro-seismic events caused by CO2 injection in a well approximately 1200 ft (360 m) from the observation well. The data collection duration is intended to last for three months, and is being conducted by Pinnacle Technologies. Secondary sensors deployed in support of the experiment include a semi-permanent 10 level hydrophone array, a tool used primarily in active source measurements, and a surface micro-array of 3C geophones. Microseismic results have important implications for assessing the potential for induced seismicity related to industrial-scale sequestration projects, as well as for understanding CO2 migration and pressure evolution within a reservoir. A reservoir-scale normal fault occurs between the injection well and observation well, and this fault has been mapped in detail in 3D seismic data. Continuous pressure monitoring for over 15 months in the reservoir interval elsewhere in the field to the north indicates this fault to be sealing to pressure at the timescales observed. For the microseismic experiment, as pressure from the CO2 injection builds it is anticipated that the distribution of any microseismic events recorded will illustrate the interaction of pressure and CO2 with this fault. Standard fault stability calculations predict that the fault should remain stable given the anticipated injection pressures and orientation of the fault. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Meckel, Tip AU - Hovorka, Susan D AU - Ajo-Franklin, Jonathan AU - Reiter, Delaine AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - unpaginated PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2010 KW - United States KW - engineering properties KW - Cretaceous KW - Cranfield Field KW - Upper Cretaceous KW - oil and gas fields KW - reservoir rocks KW - observations KW - carbon dioxide KW - fluid injection KW - seismicity KW - normal faults KW - Tuscaloosa Formation KW - faults KW - sealing KW - monitoring KW - carbon sequestration KW - pressure KW - three-dimensional models KW - Southeast Regional Carbon Sequestration Partnership KW - microseismic methods KW - Mississippi KW - SECARB KW - Mesozoic KW - measurement KW - boreholes KW - reservoir properties KW - instruments KW - arrays KW - 30:Engineering geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1549619517?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Downhole+passive+microseismic+observations+during+continuous+CO+%28sub+2%29+injection+at+Cranfield%2C+Mississippi&rft.au=Meckel%2C+Tip%3BHovorka%2C+Susan+D%3BAjo-Franklin%2C+Jonathan%3BReiter%2C+Delaine%3BAnonymous&rft.aulast=Meckel&rft.aufirst=Tip&rft.date=2010-01-01&rft.volume=2010&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/pdf/2010/annual/abstracts/ndx_meckel.pdf LA - English DB - GeoRef N1 - Conference title - AAPG 2010 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2014-01-01 N1 - PubXState - OK N1 - Last updated - 2014-07-31 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - arrays; boreholes; carbon dioxide; carbon sequestration; Cranfield Field; Cretaceous; engineering properties; faults; fluid injection; instruments; measurement; Mesozoic; microseismic methods; Mississippi; monitoring; normal faults; observations; oil and gas fields; pressure; reservoir properties; reservoir rocks; sealing; SECARB; seismicity; Southeast Regional Carbon Sequestration Partnership; three-dimensional models; Tuscaloosa Formation; United States; Upper Cretaceous ER - TY - BOOK T1 - In situ; groundwater bioremediation AN - 1420512316; 2013-064280 AB - In situ groundwater bioremediation of hydrocarbons has been used for more than 40 years. Most strategies involve biostimulation; however, recently bioaugmentation have been used for dehalorespiration. Aquifer and contaminant profiles are critical to determining the feasibility and strategy for in situ groundwater bioremediation. Hydraulic conductivity and redox conditions, including concentrations of terminal electron acceptors are critical to determine the feasibility and strategy for potential bioremediation applications. Conceptual models followed by characterization and subsequent numerical models are critical for efficient and cost effective bioremediation. Critical research needs in this area include better modeling and integration of remediation strategies with natural attenuation. JF - Consequences of microbial interactions with hydrocarbons, oils and lipids AU - Hazen, Terry C Y1 - 2010 PY - 2010 DA - 2010 PB - Springer, Heidelberg KW - models KW - biodegradation KW - in situ KW - pollutants KW - pollution KW - petroleum KW - bioremediation KW - remediation KW - ground water KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1420512316?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/GeoRef&rft_val_fmt=info:ofi/fmt:kev:mtx:book&rft.genre=book&rft.jtitle=&rft.atitle=&rft.au=Hazen%2C+Terry+C&rft.aulast=Hazen&rft.aufirst=Terry&rft.date=2010-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=In+situ%3B+groundwater+bioremediation&rft.title=In+situ%3B+groundwater+bioremediation&rft.issn=&rft_id=info:doi/10.1007%2F978-3-540-77587-4_191 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe, Hanover, Germany N1 - Date revised - 2013-01-01 N1 - Number of references - 45 N1 - SuppNotes - Pieces: 5 N1 - Last updated - 2013-08-15 DO - http://dx.doi.org/10.1007/978-3-540-77587-4_191 ER - TY - JOUR T1 - Natural organobromine in marine sediments; new evidence of biogeochemical Br cycling AN - 1371767019; 2013-050892 AB - Organobromine (Br (sub org) ) compounds, commonly recognized as persistent, toxic anthropogenic pollutants, are also produced naturally in terrestrial and marine systems. Several enzymatic and abiotic bromination mechanisms have been identified, as well as an array of natural Br (sub org) molecules associated with various marine organisms. The fate of the carbon-bromine functionality in the marine environment, however, remains largely unexplored. Oceanographic studies have noted an association between bromine (Br) and organic carbon (C (sub org) ) in marine sediments. Even so, there has been no direct chemical evidence that Br in the sediments exists in a stable form apart from inorganic bromide (Br (sub inorg) ), which is widely presumed conservative in marine systems. To investigate the scope of natural Br (sub org) production and its fate in the environment, we probed Br distribution and speciation in estuarine and marine sediments using in situ X-ray spectroscopy and spectromicroscopy. We show that Br (sub org) is ubiquitous throughout diverse sedimentary environments, occurring in correlation with C (sub org) and metals such as Fe, Ca, and Zn. Analysis of sinking particulate carbon from the seawater column links the Br (sub org) observed in sediments to biologically produced Br (sub org) compounds that persist through humification of natural organic matter (NOM). Br speciation varies with sediment depth, revealing biogeochemical cycling of Br between organic and inorganic forms as part of the burial and degradation of NOM. These findings illuminate the chemistry behind the association of Br with C (sub org) in marine sediments and cast doubt on the paradigmatic classification of Br as a conservative element in seawater systems. JF - Global Biogeochemical Cycles AU - Leri, Alessandra C AU - Hakala, J Alexandra AU - Marcus, Matthew A AU - Lanzirotti, Antonio AU - Reddy, Christopher M AU - Myneni, Satish C B Y1 - 2010 PY - 2010 DA - 2010 EP - Citation GB4017 PB - American Geophysical Union, Washington, DC VL - 24 IS - 4 SN - 0886-6236, 0886-6236 KW - organobromine KW - halogens KW - bromine KW - X-ray spectra KW - geochemical cycle KW - organic compounds KW - marine sediments KW - biogenic processes KW - marine environment KW - carbon KW - sediments KW - spectra KW - organic carbon KW - estuarine environment KW - 02C:Geochemistry of rocks, soils, and sediments KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371767019?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Global+Biogeochemical+Cycles&rft.atitle=Natural+organobromine+in+marine+sediments%3B+new+evidence+of+biogeochemical+Br+cycling&rft.au=Leri%2C+Alessandra+C%3BHakala%2C+J+Alexandra%3BMarcus%2C+Matthew+A%3BLanzirotti%2C+Antonio%3BReddy%2C+Christopher+M%3BMyneni%2C+Satish+C+B&rft.aulast=Leri&rft.aufirst=Alessandra&rft.date=2010-01-01&rft.volume=24&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Global+Biogeochemical+Cycles&rft.issn=08866236&rft_id=info:doi/10.1029%2F2010GB003794 L2 - http://www.agu.org/journals/gb/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 53 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-06-27 N1 - SubjectsTermNotLitGenreText - biogenic processes; bromine; carbon; estuarine environment; geochemical cycle; halogens; marine environment; marine sediments; organic carbon; organic compounds; organobromine; sediments; spectra; X-ray spectra DO - http://dx.doi.org/10.1029/2010GB003794 ER - TY - JOUR T1 - Analysis of the red luminescence in benitoite; perhaps the first mineralogical example of Ti (super 3+) activation AN - 1371761904; 2013-050651 JF - Journal of the Fluorescent Mineral Society AU - Waychunas, Glenn A Y1 - 2010 PY - 2010 DA - 2010 SP - 13 EP - 19 PB - Fluorescent Mineral Society, Pacoima, CA VL - 30 SN - 0160-0958, 0160-0958 KW - silicates KW - benitoite KW - ring silicates KW - excitation energy KW - ultraviolet radiation KW - temperature KW - emission spectra KW - wavelength KW - luminescence KW - absorption KW - electromagnetic radiation KW - color KW - titanium KW - metals KW - spectra KW - crystal chemistry KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371761904?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Fluorescent+Mineral+Society&rft.atitle=Analysis+of+the+red+luminescence+in+benitoite%3B+perhaps+the+first+mineralogical+example+of+Ti+%28super+3%2B%29+activation&rft.au=Waychunas%2C+Glenn+A&rft.aulast=Waychunas&rft.aufirst=Glenn&rft.date=2010-01-01&rft.volume=30&rft.issue=&rft.spage=13&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Fluorescent+Mineral+Society&rft.issn=01600958&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 15 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2013-06-27 N1 - CODEN - JFMSBD N1 - SubjectsTermNotLitGenreText - absorption; benitoite; color; crystal chemistry; electromagnetic radiation; emission spectra; excitation energy; luminescence; metals; ring silicates; silicates; spectra; temperature; titanium; ultraviolet radiation; wavelength ER - TY - JOUR T1 - Analysis of the blue luminescence in benitoite; an example of a charge-transfer luminescent process AN - 1371761774; 2013-050650 JF - Journal of the Fluorescent Mineral Society AU - Waychunas, Glenn A Y1 - 2010 PY - 2010 DA - 2010 SP - 5 EP - 12 PB - Fluorescent Mineral Society, Pacoima, CA VL - 30 SN - 0160-0958, 0160-0958 KW - silicates KW - nomenclature KW - benitoite KW - ring silicates KW - substitution KW - ultraviolet radiation KW - emission spectra KW - wavelength KW - luminescence KW - absorption KW - electromagnetic radiation KW - color KW - titanium KW - metals KW - spectra KW - crystal chemistry KW - chemical composition KW - electrons KW - 01B:Mineralogy of silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1371761774?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+Fluorescent+Mineral+Society&rft.atitle=Analysis+of+the+blue+luminescence+in+benitoite%3B+an+example+of+a+charge-transfer+luminescent+process&rft.au=Waychunas%2C+Glenn+A&rft.aulast=Waychunas&rft.aufirst=Glenn&rft.date=2010-01-01&rft.volume=30&rft.issue=&rft.spage=5&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+Fluorescent+Mineral+Society&rft.issn=01600958&rft_id=info:doi/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 8 N1 - PubXState - CA N1 - Document feature - illus. N1 - Last updated - 2013-06-27 N1 - CODEN - JFMSBD N1 - SubjectsTermNotLitGenreText - absorption; benitoite; chemical composition; color; crystal chemistry; electromagnetic radiation; electrons; emission spectra; luminescence; metals; nomenclature; ring silicates; silicates; spectra; substitution; titanium; ultraviolet radiation; wavelength ER - TY - JOUR T1 - Groundwater chemistry changes as a result of CO (sub 2) injection at the ZERT monitoring field site, Bozeman, Montana AN - 1312834764; 2013-022116 AB - The Zero Emissions Research and Technology (ZERT) project is an ongoing field experiment to evaluate near-surface and atmospheric monitoring techniques applicable to the subsurface storage and potential leakage of CO (sub 2) . During the 2008 and 2009 injections, approximately 300 and 200 kg/day of food-grade CO (sub 2) were respectively injected into a perforated horizontal well situated 2-2.3 m below ground surface in a shallow, freshwater aquifer at an agricultural field at Montana State University, Bozeman, MT. As part of this multidisciplinary research project, over 100 samples of water were collected from 10 shallow observation wells (1.5 or 3.0 m deep) located 1-6 m from the injection pipe, and from four distant monitoring wells. In addition, two fluorescein tracer tests were conducted in 2009 in the 3 m deep wells to determine the groundwater flow velocity. The sediment cores obtained from three 3 m wells drilled in December 2008, show a well developed clay-rich A horizon and a carbonate-rich B horizon, overlaying a coarse sandy-gravel. Field determinations show rapid and systematic changes in pH (7.0-5.6), alkalinity (400-1300 mg/L as HCO3) and conductance (600-1800 mu S/cm) following CO (sub 2) injection for water samples collected in 2008 from the 1.5 m wells; results obtained in 2009 show the same general trends, but changes are lower, reflecting the 33% lower CO2 injection rate. Laboratory analyses of 2008 samples show major increases in the concentrations of Ca (90-240 mg/L), Mg (25-70 mg/L), Fe (5-1200 ppb) and Mn (5-1400 ppb) following CO (sub 2) injection. Likewise, samples from 2009 show increases in major cations, but the increases are attenuated compared to 2008 levels. Dissolution of observed carbonate minerals and desorption-ion exchange from lowered pH values following CO (sub 2) injection are likely the processes responsible for the observed increases in the concentrations of solutes. The DOC values obtained are 5+ or -2 mg/L, and the variations do not correlate with CO (sub 2) injection. Purge-and-trap analysis of CO (sub 2) samples collected from the source tank showed that the CO (sub 2) was the source of the trace concentrations of detected BTEX (e.g. benzene from 0 to 0.8 ppb in 2008). Results of the tracer tests indicate the lateral groundwater flow is high at approximately 2 m/day. Upcoming sequential extractions on core sediments will investigate the sources of metals observed in the groundwater as a result of CO (sub 2) injection. JF - Abstracts: Annual Meeting - American Association of Petroleum Geologists AU - Beers, Sarah AU - Kharaka, Yousif AU - Thordsen, James AU - Herkelrath, William AU - Campbell, Pamela AU - Birkholzer, Jens AU - Trautz, Robert AU - Rauch, Henry AU - Gullickson, Kadie AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - unpaginated PB - American Association of Petroleum Geologists and Society for Sedimentary Geology, Tulsa, OK VL - 2010 KW - United States KW - aquifer vulnerability KW - desorption KW - observation wells KW - fresh water KW - gas storage KW - ground water KW - carbon dioxide KW - laboratory studies KW - fluid injection KW - Zero Emissions Research and Technology KW - tracers KW - velocity KW - ZERT KW - geochemistry KW - pH KW - monitoring KW - carbon sequestration KW - pollutants KW - pollution KW - hydrochemistry KW - BTEX KW - benzene KW - Montana KW - Bozeman Montana KW - aquifers KW - organic compounds KW - hydrocarbons KW - shallow aquifers KW - hydraulic conductivity KW - carbonates KW - aromatic hydrocarbons KW - 02B:Hydrochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1312834764?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.atitle=Groundwater+chemistry+changes+as+a+result+of+CO+%28sub+2%29+injection+at+the+ZERT+monitoring+field+site%2C+Bozeman%2C+Montana&rft.au=Beers%2C+Sarah%3BKharaka%2C+Yousif%3BThordsen%2C+James%3BHerkelrath%2C+William%3BCampbell%2C+Pamela%3BBirkholzer%2C+Jens%3BTrautz%2C+Robert%3BRauch%2C+Henry%3BGullickson%2C+Kadie%3BAnonymous&rft.aulast=Beers&rft.aufirst=Sarah&rft.date=2010-01-01&rft.volume=2010&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts%3A+Annual+Meeting+-+American+Association+of+Petroleum+Geologists&rft.issn=&rft_id=info:doi/ L2 - http://www.searchanddiscovery.com/abstracts/pdf/2010/annual/abstracts/ndx_beers.pdf LA - English DB - GeoRef N1 - Conference title - AAPG 2010 annual convention & exhibition N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by American Association of Petroleum Geologists, Tulsa, OK, United States N1 - Date revised - 2013-01-01 N1 - PubXState - OK N1 - Last updated - 2013-02-28 N1 - CODEN - #06983 N1 - SubjectsTermNotLitGenreText - aquifer vulnerability; aquifers; aromatic hydrocarbons; benzene; Bozeman Montana; BTEX; carbon dioxide; carbon sequestration; carbonates; desorption; fluid injection; fresh water; gas storage; geochemistry; ground water; hydraulic conductivity; hydrocarbons; hydrochemistry; laboratory studies; monitoring; Montana; observation wells; organic compounds; pH; pollutants; pollution; shallow aquifers; tracers; United States; velocity; Zero Emissions Research and Technology; ZERT ER - TY - JOUR T1 - Geophysics at the interface; response of geophysical properties to solid-fluid, fluid-fluid, and solid-solid interfaces AN - 1282823743; 2013-014728 AB - Laboratory studies reveal the sensitivity of measured geophysical properties to solid-fluid, fluid-fluid, and solid-solid interfaces in granular and fractured materials. In granular materials, electrical properties and nuclear magnetic resonance relaxation times exhibit a strong dependence on the size and properties of the solid-fluid interface. The electrical and seismic properties of granular materials and the seismic properties of fractured materials reveal a dependence on the size or geometry of fluid-fluid interfaces. Seismic properties of granular and fractured materials are affected by the effective stress and cementing material at solid-solid interfaces. There have been some recent studies demonstrating the use of field-scale measurements to obtain information about pore-scale interfaces. In addition, a new approach to geophysical field measurements focuses on the geophysical response of the field-scale interface itself, with successful applications in imaging the water table and a redox front. The observed sensitivity of geophysical data to interfaces highlights new ways in which geophysical measurements could be used to obtain information about subsurface properties and processes. JF - Reviews of Geophysics AU - Knight, R AU - Pyrak-Nolte, Laura J AU - Slater, L AU - Atekwana, E AU - Endres, A AU - Geller, J AU - Lesmes, D AU - Nakagawa, S AU - Revil, Andre AU - Sharma, M M AU - Straley, C Y1 - 2010 PY - 2010 DA - 2010 SP - RG4002(1 EP - 30) PB - American Geophysical Union, Washington, DC VL - 48 IS - 4 SN - 8755-1209, 8755-1209 KW - solid phase KW - fractured materials KW - laboratory studies KW - physical properties KW - experimental studies KW - electrical properties KW - granular materials KW - fluid phase KW - geophysics KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1282823743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+of+Geophysics&rft.atitle=Geophysics+at+the+interface%3B+response+of+geophysical+properties+to+solid-fluid%2C+fluid-fluid%2C+and+solid-solid+interfaces&rft.au=Knight%2C+R%3BPyrak-Nolte%2C+Laura+J%3BSlater%2C+L%3BAtekwana%2C+E%3BEndres%2C+A%3BGeller%2C+J%3BLesmes%2C+D%3BNakagawa%2C+S%3BRevil%2C+Andre%3BSharma%2C+M+M%3BStraley%2C+C&rft.aulast=Knight&rft.aufirst=R&rft.date=2010-01-01&rft.volume=48&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Reviews+of+Geophysics&rft.issn=87551209&rft_id=info:doi/10.1029%2F2007RG000242 L2 - http://www.agu.org/journals/rg/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2013-01-01 N1 - Number of references - 142 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-02-05 N1 - SubjectsTermNotLitGenreText - electrical properties; experimental studies; fluid phase; fractured materials; geophysics; granular materials; laboratory studies; physical properties; solid phase DO - http://dx.doi.org/10.1029/2007RG000242 ER - TY - JOUR T1 - Improved extraction of hydrologic information from geophysical data through coupled hydrogeophysical inversion AN - 1037239934; 2012-077528 AB - There is increasing interest in the use of multiple measurement types, including indirect (geophysical) methods, to constrain hydrologic interpretations. To date, most examples integrating geophysical measurements in hydrology have followed a three-step, uncoupled inverse approach. This approach begins with independent geophysical inversion to infer the spatial and/or temporal distribution of a geophysical property (e.g., electrical conductivity). The geophysical property is then converted to a hydrologic property (e.g., water content) through a petrophysical relation. The inferred hydrologic property is then used either independently or together with direct hydrologic observations to constrain a hydrologic inversion. We present an alternative approach, coupled inversion, which relies on direct coupling of hydrologic models and geophysical models during inversion. We compare the abilities of coupled and uncoupled inversion using a synthetic example where surface-based electrical conductivity surveys are used to monitor one-dimensional infiltration and redistribution. Through this illustrative example, we show that the coupled approach can provide significant reductions in uncertainty for hydrologic properties and associated predictions if the underlying model is a faithful representation of the hydrologic processes. However, if the hydrologic model exhibits structural errors, the coupled inversion may not improve the hydrologic interpretation. Despite this limitation, our results support the use of coupled hydrogeophysical inversion both for the direct benefits of reduced errors during inversion and because of the secondary benefits that accrue because of the extensive communication and sharing of data necessary to produce a coupled model, which will likely lead to more thoughtful use of geophysical data in hydrologic studies. JF - Water Resources Research AU - Hinnell, A C AU - Ferre, T P A AU - Vrugt, J A AU - Huisman, J A AU - Moysey, S AU - Rings, J AU - Kowalsky, M B Y1 - 2010 PY - 2010 DA - 2010 EP - Citation W00D40 PB - American Geophysical Union, Washington, DC VL - 46 SN - 0043-1397, 0043-1397 KW - hydrology KW - numerical models KW - geophysical methods KW - data processing KW - prediction KW - inverse problem KW - hydrogeology KW - equations KW - depth KW - physical properties KW - Richards equation KW - infiltration KW - DREAM algorithm KW - applications KW - interpretation KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1037239934?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Improved+extraction+of+hydrologic+information+from+geophysical+data+through+coupled+hydrogeophysical+inversion&rft.au=Hinnell%2C+A+C%3BFerre%2C+T+P+A%3BVrugt%2C+J+A%3BHuisman%2C+J+A%3BMoysey%2C+S%3BRings%2C+J%3BKowalsky%2C+M+B&rft.aulast=Hinnell&rft.aufirst=A&rft.date=2010-01-01&rft.volume=46&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2008WR007060 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 59 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-08-31 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - applications; data processing; depth; DREAM algorithm; equations; geophysical methods; hydrogeology; hydrology; infiltration; interpretation; inverse problem; numerical models; physical properties; prediction; Richards equation DO - http://dx.doi.org/10.1029/2008WR007060 ER - TY - JOUR T1 - Impact of carboxylated molecules on cation hydration dynamics and implications for calcification AN - 1030491030; 2012-070695 JF - Geochimica et Cosmochimica Acta AU - Hamm, L M AU - Wallace, A F AU - Dove, P M AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - calcium KW - magnesium KW - data processing KW - crystal growth KW - solution KW - LAMMPS KW - amino acids KW - digital simulation KW - carboxylic acids KW - molecular dynamics KW - kinetics KW - geochemistry KW - water KW - biomineralization KW - alkaline earth metals KW - calcification KW - calcite KW - hydration KW - organic compounds KW - organic acids KW - metals KW - TIP3P KW - cations KW - crystal chemistry KW - carbonates KW - strontium KW - CHARMM22 KW - aspartic acid KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1030491030?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Fast+Five%3A+Men%27s+Vests%3B+Layering+is+Cake%3B+When+the+winter+winds+blow%2C+sandwich+a+warming+wool+vest+between+a+heavy+sweater+and+a+topcoat&rft.au=Anonymous&rft.aulast=Anonymous&rft.aufirst=&rft.date=2011-11-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; amino acids; aspartic acid; biomineralization; calcification; calcite; calcium; carbonates; carboxylic acids; cations; CHARMM22; crystal chemistry; crystal growth; data processing; digital simulation; geochemistry; hydration; kinetics; LAMMPS; magnesium; metals; molecular dynamics; organic acids; organic compounds; solution; strontium; TIP3P; water ER - TY - JOUR T1 - A perspective on nanominerals and their roles in microbial ecosystems AN - 1020539901; 2012-057753 JF - Geochimica et Cosmochimica Acta AU - Banfield, Jillian F AU - Zhang, Hengzhong AU - Gilbert, Benjamin AU - Williams, Kenneth Hurst AU - Singer, Steven AU - Waychunas, Glenn AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - experimental studies KW - metabolism KW - polysaccharides KW - ecosystems KW - crystal growth KW - organic compounds KW - biogenic processes KW - carbohydrates KW - synthesis KW - nanoparticles KW - geochemistry KW - review KW - microorganisms KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020539901?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=A+perspective+on+nanominerals+and+their+roles+in+microbial+ecosystems&rft.au=Banfield%2C+Jillian+F%3BZhang%2C+Hengzhong%3BGilbert%2C+Benjamin%3BWilliams%2C+Kenneth+Hurst%3BSinger%2C+Steven%3BWaychunas%2C+Glenn%3BAnonymous&rft.aulast=Banfield&rft.aufirst=Jillian&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A48&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - biogenic processes; carbohydrates; crystal growth; ecosystems; experimental studies; geochemistry; metabolism; microorganisms; nanoparticles; organic compounds; polysaccharides; review; synthesis ER - TY - JOUR T1 - Importance of porosity in saprolite formation on basalt AN - 1020539716; 2012-057427 JF - Geochimica et Cosmochimica Acta AU - Navarre-Sitchler, Alexis K AU - Steefel, Carl I AU - Brantley, Susan L AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - silicates KW - scale factor KW - volcanic rocks KW - iron oxides KW - igneous rocks KW - augite KW - weathering rinds KW - watersheds KW - laboratory studies KW - pyroxene group KW - clinopyroxene KW - transport KW - weathered materials KW - basalts KW - reactive transport KW - oxides KW - framework silicates KW - gibbsite KW - chain silicates KW - hydrology KW - plagioclase KW - experimental studies KW - numerical models KW - weathering KW - porosity KW - saprolite KW - parent materials KW - weathering rates KW - feldspar group KW - 06A:Sedimentary petrology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020539716?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Importance+of+porosity+in+saprolite+formation+on+basalt&rft.au=Navarre-Sitchler%2C+Alexis+K%3BSteefel%2C+Carl+I%3BBrantley%2C+Susan+L%3BAnonymous&rft.aulast=Navarre-Sitchler&rft.aufirst=Alexis&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A748&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-15 N1 - SubjectsTermNotLitGenreText - augite; basalts; chain silicates; clinopyroxene; experimental studies; feldspar group; framework silicates; gibbsite; hydrology; igneous rocks; iron oxides; laboratory studies; numerical models; oxides; parent materials; plagioclase; porosity; pyroxene group; reactive transport; saprolite; scale factor; silicates; transport; volcanic rocks; watersheds; weathered materials; weathering; weathering rates; weathering rinds ER - TY - JOUR T1 - Wavelength dependent oxygen isotopic fractionation in the VUV photodissociation of CO; an early solar system perspective AN - 1020538850; 2012-057197 JF - Abstracts of Papers Submitted to the Lunar and Planetary Science Conference AU - Chakraborty, Subrata AU - Davis, Ryan AU - Ahmed, Musahid AU - Jackson, Teresa L AU - Thiemens, M H AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 EP - Paper 2077 PB - Lunar and Planetary Science Conference, Houston, TX VL - 41 KW - isotope fractionation KW - experimental studies KW - dissociation KW - oxygen KW - isotopes KW - isotope ratios KW - photochemistry KW - self-shielding KW - cosmochemistry KW - O-18/O-16 KW - stable isotopes KW - ultraviolet radiation KW - early solar system KW - wavelength KW - synchrotron radiation KW - solar nebula KW - carbon monoxide KW - electromagnetic radiation KW - photolysis KW - photodissociation KW - O-17/O-16 KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020538850?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Wavelength+dependent+oxygen+isotopic+fractionation+in+the+VUV+photodissociation+of+CO%3B+an+early+solar+system+perspective&rft.au=Chakraborty%2C+Subrata%3BDavis%2C+Ryan%3BAhmed%2C+Musahid%3BJackson%2C+Teresa+L%3BThiemens%2C+M+H%3BAnonymous&rft.aulast=Chakraborty&rft.aufirst=Subrata&rft.date=2010-01-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.lpi.usra.edu/meetings/lpsc2010/pdf/2077.pdf LA - English DB - GeoRef N1 - Conference title - Forty-first lunar and planetary science conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 23 N1 - PubXState - TX N1 - Document feature - illus. N1 - SuppNotes - Accessed on Aug. 5, 2011 N1 - Last updated - 2012-06-15 N1 - CODEN - #02179 N1 - SubjectsTermNotLitGenreText - carbon monoxide; cosmochemistry; dissociation; early solar system; electromagnetic radiation; experimental studies; isotope fractionation; isotope ratios; isotopes; O-17/O-16; O-18/O-16; oxygen; photochemistry; photodissociation; photolysis; self-shielding; solar nebula; stable isotopes; synchrotron radiation; ultraviolet radiation; wavelength ER - TY - JOUR T1 - Atomistic simulation of metal-carbonate cluster formation AN - 1020538712; 2012-057318 JF - Geochimica et Cosmochimica Acta AU - Wallace, A F AU - Raiteri, P AU - Gale, J D AU - Deyoreo, J J AU - Banfield, J F AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - biomineralization KW - iron carbonates KW - amorphous materials KW - data processing KW - crystal structure KW - crystal growth KW - aqueous solutions KW - iron KW - hydration KW - polymorphism KW - nucleation KW - metals KW - digital simulation KW - calcium carbonate KW - molecular dynamics KW - carbonates KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020538712?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Atomistic+simulation+of+metal-carbonate+cluster+formation&rft.au=Wallace%2C+A+F%3BRaiteri%2C+P%3BGale%2C+J+D%3BDeyoreo%2C+J+J%3BBanfield%2C+J+F%3BAnonymous&rft.aulast=Wallace&rft.aufirst=A&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A1094&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - amorphous materials; aqueous solutions; biomineralization; calcium carbonate; carbonates; crystal growth; crystal structure; data processing; digital simulation; hydration; iron; iron carbonates; metals; molecular dynamics; nucleation; polymorphism ER - TY - JOUR T1 - Time-lapse electrical resistivity tomography (ERT) monitoring of in situ hydrogeochemical changes associated with an emulsified vegetable oil injection for bioreduction of uranium(VI) AN - 1020537087; 2012-057741 JF - Geochimica et Cosmochimica Acta AU - Baker, Gregory S AU - Hubbard, S S AU - Watson, D B AU - Gasperikova, E AU - Wu, Y AU - Brooks, S AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - tomography KW - electrical resistivity tomography KW - technology KW - degradation KW - well-logging KW - SRS substrates KW - remediation KW - hexavalent uranium KW - laboratory studies KW - time-lapse methods KW - reduction KW - geochemistry KW - synthetic materials KW - electrons KW - biodegradation KW - toxic materials KW - tetravalent uranium KW - experimental studies KW - ERT method KW - monitoring KW - electrical logging KW - in situ KW - geophysical methods KW - electrical methods KW - pollution KW - resistivity KW - bioremediation KW - hydrochemistry KW - emulsified vegetable oil KW - metals KW - uranium KW - actinides KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1020537087?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Time-lapse+electrical+resistivity+tomography+%28ERT%29+monitoring+of+in+situ+hydrogeochemical+changes+associated+with+an+emulsified+vegetable+oil+injection+for+bioreduction+of+uranium%28VI%29&rft.au=Baker%2C+Gregory+S%3BHubbard%2C+S+S%3BWatson%2C+D+B%3BGasperikova%2C+E%3BWu%2C+Y%3BBrooks%2C+S%3BAnonymous&rft.aulast=Baker&rft.aufirst=Gregory&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A42&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - actinides; biodegradation; bioremediation; degradation; electrical logging; electrical methods; electrical resistivity tomography; electrons; emulsified vegetable oil; ERT method; experimental studies; geochemistry; geophysical methods; hexavalent uranium; hydrochemistry; in situ; laboratory studies; metals; monitoring; pollution; reduction; remediation; resistivity; SRS substrates; synthetic materials; technology; tetravalent uranium; time-lapse methods; tomography; toxic materials; uranium; well-logging ER - TY - JOUR T1 - Can direct extracellular electron transfer occur in the absence of outer membrane cytochromes in Desulfovibrio vulgaris? AN - 1017952875; 2012-053081 JF - Geochimica et Cosmochimica Acta AU - Elias, D A AU - Zane, G M AU - Auer, M A AU - Fields, M W AU - Wall, J D AU - Gorby, Y A AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - tetravalent uranium KW - pollutants KW - genes KW - biochemistry KW - oxidation KW - pollution KW - electrochemical properties KW - iron KW - cytochromes KW - hexavalent uranium KW - ferric iron KW - organic compounds KW - biogenic processes KW - metals KW - Desulfovibrio KW - bacteria KW - uranium KW - proteins KW - geochemistry KW - actinides KW - microorganisms KW - electrons KW - 02C:Geochemistry of rocks, soils, and sediments UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017952875?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Can+direct+extracellular+electron+transfer+occur+in+the+absence+of+outer+membrane+cytochromes+in+Desulfovibrio+vulgaris%3F&rft.au=Elias%2C+D+A%3BZane%2C+G+M%3BAuer%2C+M+A%3BFields%2C+M+W%3BWall%2C+J+D%3BGorby%2C+Y+A%3BAnonymous&rft.aulast=Elias&rft.aufirst=D&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A263&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - actinides; bacteria; biochemistry; biogenic processes; cytochromes; Desulfovibrio; electrochemical properties; electrons; ferric iron; genes; geochemistry; hexavalent uranium; iron; metals; microorganisms; organic compounds; oxidation; pollutants; pollution; proteins; tetravalent uranium; uranium ER - TY - JOUR T1 - Reactivity of ferrihydrite AN - 1017951679; 2012-053093 JF - Geochimica et Cosmochimica Acta AU - Erbs, Jasmine J AU - Berquo, Thelma AU - Banerjee, Subir K AU - Lowry, Gregory V AU - Reinsch, Brian C AU - Gilbert, Ben AU - Penn, R Lee AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - experimental studies KW - iron oxides KW - X-ray diffraction data KW - characterization KW - ferrihydrite KW - X-ray spectra KW - TEM data KW - magnetic properties KW - reactivity KW - oxides KW - spectra KW - nanoparticles KW - mineral surface KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017951679?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reactivity+of+ferrihydrite&rft.au=Erbs%2C+Jasmine+J%3BBerquo%2C+Thelma%3BBanerjee%2C+Subir+K%3BLowry%2C+Gregory+V%3BReinsch%2C+Brian+C%3BGilbert%2C+Ben%3BPenn%2C+R+Lee%3BAnonymous&rft.aulast=Erbs&rft.aufirst=Jasmine&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A269&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - characterization; experimental studies; ferrihydrite; iron oxides; magnetic properties; mineral surface; nanoparticles; oxides; reactivity; spectra; TEM data; X-ray diffraction data; X-ray spectra ER - TY - JOUR T1 - C and N dynamics in soil microstructures; a joined STXM/NEXAFS and NanoSIMS approach AN - 1017950843; 2012-050829 JF - Geochimica et Cosmochimica Acta AU - Keiluweit, M AU - Nico, P S AU - Zeglin, L H AU - Pett-Ridge, J AU - Weber, P AU - Myrold, D D AU - Kleber, M AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - soils KW - experimental studies KW - ion probe data KW - three-dimensional models KW - biochemistry KW - microstructure KW - mass spectra KW - migration of elements KW - TEM data KW - nitrogen KW - geochemical cycle KW - organic compounds KW - biogenic processes KW - X-ray data KW - carbon KW - EXAFS data KW - STXM data KW - NanoSIMS KW - spectra KW - scanning transmission X-ray microscopy data KW - geochemistry KW - SEM data KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017950843?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=C+and+N+dynamics+in+soil+microstructures%3B+a+joined+STXM%2FNEXAFS+and+NanoSIMS+approach&rft.au=Keiluweit%2C+M%3BNico%2C+P+S%3BZeglin%2C+L+H%3BPett-Ridge%2C+J%3BWeber%2C+P%3BMyrold%2C+D+D%3BKleber%2C+M%3BAnonymous&rft.aulast=Keiluweit&rft.aufirst=M&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A502&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - biochemistry; biogenic processes; carbon; EXAFS data; experimental studies; geochemical cycle; geochemistry; ion probe data; mass spectra; microstructure; migration of elements; NanoSIMS; nitrogen; organic compounds; scanning transmission X-ray microscopy data; SEM data; soils; spectra; STXM data; TEM data; three-dimensional models; X-ray data ER - TY - JOUR T1 - Visualizing organic matter biogeochemistry at the microaggregate scale; lessons from STXM-SIMS AN - 1017950549; 2012-050750 JF - Geochimica et Cosmochimica Acta AU - Pett-Ridge, Jennifer AU - Keiluweit, Marco AU - Kleber, Markus AU - Myrold, David AU - Nico, Peter AU - Weber, Peter AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - soils KW - high-resolution methods KW - experimental studies KW - biochemistry KW - mass spectroscopy KW - EXAFS KW - ion probe KW - visualization KW - organic compounds KW - STXM KW - carbon KW - NanoSIMS KW - organic carbon KW - spectroscopy KW - nanoparticles KW - geochemistry KW - 25:Soils KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017950549?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Visualizing+organic+matter+biogeochemistry+at+the+microaggregate+scale%3B+lessons+from+STXM-SIMS&rft.au=Pett-Ridge%2C+Jennifer%3BKeiluweit%2C+Marco%3BKleber%2C+Markus%3BMyrold%2C+David%3BNico%2C+Peter%3BWeber%2C+Peter%3BAnonymous&rft.aulast=Pett-Ridge&rft.aufirst=Jennifer&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A813&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - biochemistry; carbon; EXAFS; experimental studies; geochemistry; high-resolution methods; ion probe; mass spectroscopy; nanoparticles; NanoSIMS; organic carbon; organic compounds; soils; spectroscopy; STXM; visualization ER - TY - JOUR T1 - Stochastic estimation of aquifer geometry using seismic refraction data with borehole depth constraints AN - 1017950490; 2012-050717 AB - We develop a Bayesian model to invert surface seismic refraction data with depth constraints from boreholes for characterization of aquifer geometry and apply it to seismic and borehole data sets collected at the contaminated Oak Ridge National Laboratory site in Tennessee. Rather than the traditional approach of first inverting the seismic arrival times for seismic velocity and then using that information to aid in the spatial interpolation of wellbore data, we jointly invert seismic first arrival time data and wellbore-based information, such as depths of key lithological boundaries. We use a staggered-grid finite difference algorithm with second-order accuracy in time and fourth-order accuracy in space to model seismic full waveforms and use an automated method to pick the first arrival times. We use Markov Chain Monte Carlo methods to draw many samples from the joint posterior probability distribution, on which we can estimate the key interfaces and their associated uncertainty as a function of horizontal location and depth. We test the developed method on both synthetic and field case studies. The synthetic studies show that the developed method is effective at rigorous incorporation of multiscale data and the Bayesian inversion reduces uncertainty in estimates of aquifer zonation. Applications of the approach to field data, including two surface seismic profiles located 620 m apart from each other, reveal the presence of a low-velocity subsurface zone that is laterally persistent. This geophysically defined feature is aligned with the plume axis, suggesting it may serve as an important regional preferential flow pathway. JF - Water Resources Research AU - Chen, Jinsong AU - Hubbard, Susan S AU - Gaines, David AU - Korneev, Valeri AU - Baker, Gregory AU - Watson, David Y1 - 2010 PY - 2010 DA - 2010 EP - Citation W11539 PB - American Geophysical Union, Washington, DC VL - 46 IS - 11 SN - 0043-1397, 0043-1397 KW - United States KW - Oak Ridge National Laboratory KW - hydrology KW - Bayesian analysis KW - numerical analysis KW - Monte Carlo analysis KW - statistical analysis KW - geophysical methods KW - watersheds KW - equations KW - refraction methods KW - seismic methods KW - ground water KW - geometry KW - aquifers KW - fractures KW - boreholes KW - stochastic processes KW - mathematical methods KW - Tennessee KW - algorithms KW - accuracy KW - Markov chain analysis KW - 21:Hydrogeology KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017950490?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Stochastic+estimation+of+aquifer+geometry+using+seismic+refraction+data+with+borehole+depth+constraints&rft.au=Chen%2C+Jinsong%3BHubbard%2C+Susan+S%3BGaines%2C+David%3BKorneev%2C+Valeri%3BBaker%2C+Gregory%3BWatson%2C+David&rft.aulast=Chen&rft.aufirst=Jinsong&rft.date=2010-01-01&rft.volume=46&rft.issue=11&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2009WR008715 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 39 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - accuracy; algorithms; aquifers; Bayesian analysis; boreholes; equations; fractures; geometry; geophysical methods; ground water; hydrology; Markov chain analysis; mathematical methods; Monte Carlo analysis; numerical analysis; Oak Ridge National Laboratory; refraction methods; seismic methods; statistical analysis; stochastic processes; Tennessee; United States; watersheds DO - http://dx.doi.org/10.1029/2009WR008715 ER - TY - JOUR T1 - A new particle-tracking approach to simulating transport in heterogeneous fractured porous media AN - 1017949358; 2012-050669 AB - Particle-tracking methods are often used to model contaminant transport in fractured porous media because they are straightforward to implement for fracture networks and are able to take into account the matrix effect without mesh generation. While classical methods assume infinite matrix or regularly spaced fractures, we have developed a stochastic method adapted to solute transport in complex fracture networks associated with irregular matrix blocks. Diffusion times in the matrix blocks are truncated by the finite size of the blocks. High ratios of matrix diffusion to fracture advection, small fracture apertures, and small blocks favor the transfer of particles to nearby fractures through matrix diffusion. Because diffusion occurs on both sides of the originating fracture before particles reach one of the neighboring fractures, transfer times to both neighboring fractures are strongly affected by the network configurations on both sides of the fracture. This new particle-tracking method is able to deal with complex fracture networks by considering heterogeneous configurations on both sides of the fracture. We finally show on simple Sierpinski lattice structures that neglecting the finite size of the matrix blocks may lead to orders of magnitude overestimations of the transfer times. JF - Water Resources Research AU - Roubinet, Delphine AU - Liu, Hui-Hai AU - de Dreuzy, Jean-Raynald Y1 - 2010 PY - 2010 DA - 2010 EP - Citation W11507 PB - American Geophysical Union, Washington, DC VL - 46 IS - 11 SN - 0043-1397, 0043-1397 KW - Sierpinski lattices KW - fractured materials KW - theoretical studies KW - transport KW - self-organization KW - mathematical methods KW - porous materials KW - simulation KW - particles KW - ground water KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1017949358?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=A+new+particle-tracking+approach+to+simulating+transport+in+heterogeneous+fractured+porous+media&rft.au=Roubinet%2C+Delphine%3BLiu%2C+Hui-Hai%3Bde+Dreuzy%2C+Jean-Raynald&rft.aulast=Roubinet&rft.aufirst=Delphine&rft.date=2010-01-01&rft.volume=46&rft.issue=11&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2010WR009371 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 25 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - fractured materials; ground water; mathematical methods; particles; porous materials; self-organization; Sierpinski lattices; simulation; theoretical studies; transport DO - http://dx.doi.org/10.1029/2010WR009371 ER - TY - JOUR T1 - Hydrogeophysical quantification of plume-scale flow architecture and recharge processes AN - 1011394542; 2012-044727 JF - Geochimica et Cosmochimica Acta AU - Hubbard, S S AU - Watson, D AU - Baker, G S AU - Chen, J AU - Kowalsky, M AU - Gasperikova, E AU - Gaines, D B AU - Smith, M AU - Brooks, S AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - geophysical surveys KW - contaminant plumes KW - Bayesian analysis KW - unsaturated zone KW - coupling KW - preferential flow KW - refraction methods KW - ground water KW - sensitivity analysis KW - Tennessee KW - water pollution KW - geochemistry KW - pH KW - Oak Ridge National Laboratory KW - hydrology KW - well logs KW - rainfall KW - pollutants KW - numerical analysis KW - statistical analysis KW - geophysical methods KW - electrical methods KW - pollution KW - hydrochemistry KW - seismic methods KW - recharge KW - data integration KW - surveys KW - hydraulic conductivity KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394542?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Hydrogeophysical+quantification+of+plume-scale+flow+architecture+and+recharge+processes&rft.au=Hubbard%2C+S+S%3BWatson%2C+D%3BBaker%2C+G+S%3BChen%2C+J%3BKowalsky%2C+M%3BGasperikova%2C+E%3BGaines%2C+D+B%3BSmith%2C+M%3BBrooks%2C+S%3BAnonymous&rft.aulast=Hubbard&rft.aufirst=S&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A433&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - Bayesian analysis; contaminant plumes; coupling; data integration; electrical methods; geochemistry; geophysical methods; geophysical surveys; ground water; hydraulic conductivity; hydrochemistry; hydrology; numerical analysis; Oak Ridge National Laboratory; pH; pollutants; pollution; preferential flow; rainfall; recharge; refraction methods; seismic methods; sensitivity analysis; statistical analysis; surveys; Tennessee; United States; unsaturated zone; water pollution; well logs ER - TY - JOUR T1 - Scanning probe microscopy and mineral-water interfaces; have we reached a limit? AN - 1011394509; 2012-044670 JF - Geochimica et Cosmochimica Acta AU - Higgins, Steven R AU - Xu, Man AU - Cubillas, Pablo AU - Lea, A Scott AU - Knauss, Kevin G AU - Rosso, Kevin M AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - microscope methods KW - mineral-water interface KW - techniques KW - scanning probe microscopy KW - carbonates KW - instruments KW - calcite KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394509?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Scanning+probe+microscopy+and+mineral-water+interfaces%3B+have+we+reached+a+limit%3F&rft.au=Higgins%2C+Steven+R%3BXu%2C+Man%3BCubillas%2C+Pablo%3BLea%2C+A+Scott%3BKnauss%2C+Kevin+G%3BRosso%2C+Kevin+M%3BAnonymous&rft.aulast=Higgins&rft.aufirst=Steven&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A404&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - calcite; carbonates; instruments; microscope methods; mineral-water interface; scanning probe microscopy; techniques ER - TY - JOUR T1 - Characterization of reactive ferrous iron in titanomagnetite (Fe (sub 3-x) Ti (sub x) O (sub 4) ) nanoparticles for contaminant reduction AN - 1011394382; 2012-044460 JF - Geochimica et Cosmochimica Acta AU - Pearce, Carolyn I AU - Qafoku, O AU - Liu, J AU - Arenholz, E AU - Heald, S M AU - Felmy, Andrew R AU - Henderson, C M B AU - Rosso, K M AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - X-ray diffraction data KW - characterization KW - crystal structure KW - iron KW - titanomagnetite KW - radioactive waste KW - XANES spectra KW - laboratory studies KW - reactivity KW - chemical reactions KW - sediments KW - oxides KW - spectra KW - synthesis KW - Mossbauer spectra KW - experimental studies KW - Washington KW - pollution KW - Hanford Site KW - X-ray spectra KW - TEM data KW - ferrous iron KW - metals KW - EXAFS data KW - waste disposal KW - crystal chemistry KW - nanoparticles KW - magnetite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Characterization+of+reactive+ferrous+iron+in+titanomagnetite+%28Fe+%28sub+3-x%29+Ti+%28sub+x%29+O+%28sub+4%29+%29+nanoparticles+for+contaminant+reduction&rft.au=Pearce%2C+Carolyn+I%3BQafoku%2C+O%3BLiu%2C+J%3BArenholz%2C+E%3BHeald%2C+S+M%3BFelmy%2C+Andrew+R%3BHenderson%2C+C+M+B%3BRosso%2C+K+M%3BAnonymous&rft.aulast=Pearce&rft.aufirst=Carolyn&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A800&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - characterization; chemical reactions; crystal chemistry; crystal structure; EXAFS data; experimental studies; ferrous iron; Hanford Site; iron; laboratory studies; magnetite; metals; Mossbauer spectra; nanoparticles; oxides; pollution; radioactive waste; reactivity; sediments; spectra; synthesis; TEM data; titanomagnetite; United States; Washington; waste disposal; X-ray diffraction data; X-ray spectra; XANES spectra ER - TY - JOUR T1 - Reduction of contaminant Tc(VII) by magnetite (Fe (sub 3) O (sub 4) ) and titanomagnetite (Fe (sub 3-x) Ti (sub x) O (sub 4) ) nanoparticles AN - 1011394053; 2012-044489 JF - Geochimica et Cosmochimica Acta AU - Liu, J AU - Pearce, C I AU - Qafoku, O AU - Arenholz, E AU - Heald, S M AU - Peretyazhko, T AU - Rosso, K M AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - iron oxides KW - X-ray diffraction data KW - substitution KW - X-ray magnetic circular dichroism KW - aqueous solutions KW - iron KW - titanomagnetite KW - radioactive waste KW - laboratory studies KW - reactivity KW - oxides KW - XMCD method KW - spectra KW - reduction KW - synthesis KW - geochemistry KW - pH KW - technetium KW - cell dimensions KW - anions KW - experimental studies KW - Washington KW - pollutants KW - pollution KW - Hanford Site KW - X-ray spectra KW - titanium KW - metals KW - pertechnetate ion KW - waste disposal KW - nanoparticles KW - magnetite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011394053?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Reduction+of+contaminant+Tc%28VII%29+by+magnetite+%28Fe+%28sub+3%29+O+%28sub+4%29+%29+and+titanomagnetite+%28Fe+%28sub+3-x%29+Ti+%28sub+x%29+O+%28sub+4%29+%29+nanoparticles&rft.au=Liu%2C+J%3BPearce%2C+C+I%3BQafoku%2C+O%3BArenholz%2C+E%3BHeald%2C+S+M%3BPeretyazhko%2C+T%3BRosso%2C+K+M%3BAnonymous&rft.aulast=Liu&rft.aufirst=J&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A615&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - anions; aqueous solutions; cell dimensions; experimental studies; geochemistry; Hanford Site; iron; iron oxides; laboratory studies; magnetite; metals; nanoparticles; oxides; pertechnetate ion; pH; pollutants; pollution; radioactive waste; reactivity; reduction; spectra; substitution; synthesis; technetium; titanium; titanomagnetite; United States; Washington; waste disposal; X-ray diffraction data; X-ray magnetic circular dichroism; X-ray spectra; XMCD method ER - TY - JOUR T1 - The melting curve of FeSi to 150 GPa; implications for D" AN - 1011393693; 2012-044521 JF - Geochimica et Cosmochimica Acta AU - Lord, O T AU - Walter, M J AU - Dobson, D P AU - Armstrong, L AU - Clark, S M AU - Kleppe, A AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - experimental studies KW - iron silicides KW - pressure KW - mantle KW - silicon KW - high pressure KW - iron KW - temperature KW - lower mantle KW - laboratory studies KW - melting KW - metals KW - alloys KW - high temperature KW - D double prime layer KW - 17B:Geophysics of minerals and rocks UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011393693?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+melting+curve+of+FeSi+to+150+GPa%3B+implications+for+D%22&rft.au=Lord%2C+O+T%3BWalter%2C+M+J%3BDobson%2C+D+P%3BArmstrong%2C+L%3BClark%2C+S+M%3BKleppe%2C+A%3BAnonymous&rft.aulast=Lord&rft.aufirst=O&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A631&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alloys; D double prime layer; experimental studies; high pressure; high temperature; iron; iron silicides; laboratory studies; lower mantle; mantle; melting; metals; pressure; silicon; temperature ER - TY - JOUR T1 - Surface-mediated nucleation and growth of iron oxides AN - 1011393128; 2012-044631 JF - Geochimica et Cosmochimica Acta AU - Jun, Young-Shin AU - Waychunas, Glenn A AU - Lee, Byeongdu AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - SAXS method KW - nucleation KW - iron oxides KW - chemical reactions KW - X-ray analysis KW - oxides KW - techniques KW - crystal growth KW - small-angle X-ray scattering method KW - mineral surface KW - instruments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011393128?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Surface-mediated+nucleation+and+growth+of+iron+oxides&rft.au=Jun%2C+Young-Shin%3BWaychunas%2C+Glenn+A%3BLee%2C+Byeongdu%3BAnonymous&rft.aulast=Jun&rft.aufirst=Young-Shin&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A485&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - chemical reactions; crystal growth; instruments; iron oxides; mineral surface; nucleation; oxides; SAXS method; small-angle X-ray scattering method; techniques; X-ray analysis ER - TY - JOUR T1 - Investigating the effect of electroactive ion concentration on induced polarization signatures arising from biomineral formation AN - 1011392733; 2012-044395 JF - Geochimica et Cosmochimica Acta AU - Ntarlagiannis, D AU - Williams, K AU - Slater, L AU - Hubbard, S AU - Wu, Y AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - calcium KW - Garfield County Colorado KW - ions KW - electrochemical properties KW - iron KW - remediation KW - radioactive waste KW - laboratory studies KW - Rifle Colorado KW - oxides KW - applications KW - geochemistry KW - Eh KW - soils KW - biomineralization KW - alkaline earth metals KW - experimental studies KW - biochemistry KW - geophysical methods KW - electrical methods KW - pollution KW - electrolytes KW - bioremediation KW - biogenic processes KW - soil pollution KW - metals KW - waste disposal KW - Colorado KW - magnetite KW - 20:Applied geophysics KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011392733?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Investigating+the+effect+of+electroactive+ion+concentration+on+induced+polarization+signatures+arising+from+biomineral+formation&rft.au=Ntarlagiannis%2C+D%3BWilliams%2C+K%3BSlater%2C+L%3BHubbard%2C+S%3BWu%2C+Y%3BAnonymous&rft.aulast=Ntarlagiannis&rft.aufirst=D&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A767&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; applications; biochemistry; biogenic processes; biomineralization; bioremediation; calcium; Colorado; Eh; electrical methods; electrochemical properties; electrolytes; experimental studies; Garfield County Colorado; geochemistry; geophysical methods; ions; iron; laboratory studies; magnetite; metals; oxides; pollution; radioactive waste; remediation; Rifle Colorado; soil pollution; soils; United States; waste disposal ER - TY - JOUR T1 - Molecular dynamics simulations of CO (sub 2) -brine interfacial tension and mutual solubility AN - 1011391855; 2012-044379 JF - Geochimica et Cosmochimica Acta AU - Nielsen, Laura AU - Bourg, Ian AU - Sposito, Garrison AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - hydrology KW - data processing KW - surface tension KW - capillary water KW - solubility KW - carbon dioxide KW - water-rock interaction KW - digital simulation KW - brines KW - molecular dynamics KW - supercritical fluids KW - underground disposal KW - P-T conditions KW - 02B:Hydrochemistry KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011391855?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Molecular+dynamics+simulations+of+CO+%28sub+2%29+-brine+interfacial+tension+and+mutual+solubility&rft.au=Nielsen%2C+Laura%3BBourg%2C+Ian%3BSposito%2C+Garrison%3BAnonymous&rft.aulast=Nielsen&rft.aufirst=Laura&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A759&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 4 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - brines; capillary water; carbon dioxide; data processing; digital simulation; hydrology; molecular dynamics; P-T conditions; solubility; supercritical fluids; surface tension; underground disposal; water-rock interaction ER - TY - JOUR T1 - The speciation of organic matter in soil mineral organic associations; inference from STXM and N, C and Fe NEXAFS AN - 1011391840; 2012-044377 JF - Geochimica et Cosmochimica Acta AU - Nico, Peter S AU - Keiluweit, Marco AU - Kleber, Markus AU - Hatton, Pierre-Joseph AU - Zeller, Bernd AU - Derrien, Delphine AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - soils KW - experimental studies KW - layered materials KW - iron KW - nitrogen KW - organic compounds KW - X-ray data KW - mineral composition KW - metals KW - carbon KW - EXAFS data KW - STXM data KW - scanning transmission X-ray microscopy data KW - geochemistry KW - mineral surface KW - chemical fractionation KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011391840?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=The+speciation+of+organic+matter+in+soil+mineral+organic+associations%3B+inference+from+STXM+and+N%2C+C+and+Fe+NEXAFS&rft.au=Nico%2C+Peter+S%3BKeiluweit%2C+Marco%3BKleber%2C+Markus%3BHatton%2C+Pierre-Joseph%3BZeller%2C+Bernd%3BDerrien%2C+Delphine%3BAnonymous&rft.aulast=Nico&rft.aufirst=Peter&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A758&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - carbon; chemical fractionation; EXAFS data; experimental studies; geochemistry; iron; layered materials; metals; mineral composition; mineral surface; nitrogen; organic compounds; scanning transmission X-ray microscopy data; soils; STXM data; X-ray data ER - TY - JOUR T1 - Upscaling solute transport in naturally fractured porous media with the continuous time random walk method AN - 1011391170; 2012-042536 AB - Solute transport in fractured porous media is typically "non-Fickian"; that is, it is characterized by early breakthrough and long tailing and by nonlinear growth of the Green function-centered second moment. This behavior is due to the effects of (1) multirate diffusion occurring between the highly permeable fracture network and the low-permeability rock matrix, (2) a wide range of advection rates in the fractures and, possibly, the matrix as well, and (3) a range of path lengths. As a consequence, prediction of solute transport processes at the macroscale represents a formidable challenge. Classical dual-porosity (or mobile-immobile) approaches in conjunction with an advection-dispersion equation and macroscopic dispersivity commonly fail to predict breakthrough of fractured porous media accurately. It was recently demonstrated that the continuous time random walk (CTRW) method can be used as a generalized upscaling approach. Here we extend this work and use results from high-resolution finite element-finite volume-based simulations of solute transport in an outcrop analogue of a naturally fractured reservoir to calibrate the CTRW method by extracting a distribution of retention times. This procedure allows us to predict breakthrough at other model locations accurately and to gain significant insight into the nature of the fracture-matrix interaction in naturally fractured porous reservoirs with geologically realistic fracture geometries. JF - Water Resources Research AU - Geiger, S AU - Cortis, A AU - Birkholzer, J T Y1 - 2010 PY - 2010 DA - 2010 EP - Citation W12530 PB - American Geophysical Union, Washington, DC VL - 46 IS - 12 SN - 0043-1397, 0043-1397 KW - solute transport KW - fractured materials KW - numerical models KW - numerical analysis KW - data processing KW - porous materials KW - Green function KW - equations KW - ground water KW - transport KW - mathematical methods KW - digital simulation KW - continuous time random walk method KW - nonlinear processes KW - permeability KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1011391170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Water+Resources+Research&rft.atitle=Upscaling+solute+transport+in+naturally+fractured+porous+media+with+the+continuous+time+random+walk+method&rft.au=Geiger%2C+S%3BCortis%2C+A%3BBirkholzer%2C+J+T&rft.aulast=Geiger&rft.aufirst=S&rft.date=2010-01-01&rft.volume=46&rft.issue=12&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Water+Resources+Research&rft.issn=00431397&rft_id=info:doi/10.1029%2F2010WR009133 L2 - http://www.agu.org/journals/wr/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Date revised - 2012-01-01 N1 - Number of references - 71 N1 - PubXState - DC N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2012-06-07 N1 - CODEN - WRERAQ N1 - SubjectsTermNotLitGenreText - continuous time random walk method; data processing; digital simulation; equations; fractured materials; Green function; ground water; mathematical methods; nonlinear processes; numerical analysis; numerical models; permeability; porous materials; solute transport; transport DO - http://dx.doi.org/10.1029/2010WR009133 ER - TY - JOUR T1 - Formation of selenium nanospheres accompanying bioremediation of a uranium-contaminated aquifer AN - 1008819027; 2012-038662 JF - Geochimica et Cosmochimica Acta AU - Williams, Kenneth H AU - N'Guessan, A Lucie AU - Wilkins, Michael J AU - Long, Philip E AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - Garfield County Colorado KW - selenium KW - remediation KW - ground water KW - laboratory studies KW - Rifle Colorado KW - decontamination KW - water pollution KW - geochemistry KW - esters KW - experimental studies KW - acetates KW - pollutants KW - pollution KW - bioremediation KW - TEM data KW - aquifers KW - case studies KW - organic compounds KW - metals KW - biofilms KW - bacteria KW - uranium KW - Colorado KW - nanoparticles KW - actinides KW - SEM data KW - microorganisms KW - 22:Environmental geology KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008819027?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Formation+of+selenium+nanospheres+accompanying+bioremediation+of+a+uranium-contaminated+aquifer&rft.au=Williams%2C+Kenneth+H%3BN%27Guessan%2C+A+Lucie%3BWilkins%2C+Michael+J%3BLong%2C+Philip+E%3BAnonymous&rft.aulast=Williams&rft.aufirst=Kenneth&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A1133&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - acetates; actinides; aquifers; bacteria; biofilms; bioremediation; case studies; Colorado; decontamination; esters; experimental studies; Garfield County Colorado; geochemistry; ground water; laboratory studies; metals; microorganisms; nanoparticles; organic compounds; pollutants; pollution; remediation; Rifle Colorado; selenium; SEM data; TEM data; United States; uranium; water pollution ER - TY - JOUR T1 - Investigations of the influence of microbial cells on phosphate mineral precipitation AN - 1008818864; 2012-038680 JF - Geochimica et Cosmochimica Acta AU - Wright, Karen AU - Fujita, Yoshiko AU - Henriksen, James AU - Spycher, Nicolas AU - Conrad, Mark AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - United States KW - Idaho KW - experimental studies KW - hydroxylapatite KW - amorphous materials KW - analog simulation KW - pollution KW - crystal growth KW - phosphates KW - remediation KW - ground water KW - laboratory studies KW - Idaho National Laboratory KW - organic compounds KW - organic acids KW - biogenic processes KW - precipitation KW - sediments KW - triethyl phosphate KW - waste disposal KW - water pollution KW - disposal barriers KW - microorganisms KW - 22:Environmental geology KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818864?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Investigations+of+the+influence+of+microbial+cells+on+phosphate+mineral+precipitation&rft.au=Wright%2C+Karen%3BFujita%2C+Yoshiko%3BHenriksen%2C+James%3BSpycher%2C+Nicolas%3BConrad%2C+Mark%3BAnonymous&rft.aulast=Wright&rft.aufirst=Karen&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A1142&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - amorphous materials; analog simulation; biogenic processes; crystal growth; disposal barriers; experimental studies; ground water; hydroxylapatite; Idaho; Idaho National Laboratory; laboratory studies; microorganisms; organic acids; organic compounds; phosphates; pollution; precipitation; remediation; sediments; triethyl phosphate; United States; waste disposal; water pollution ER - TY - JOUR T1 - Noninvasive geophysical imaging of ureolytic CaCO (sub 3) precipitation AN - 1008818807; 2012-038694 JF - Geochimica et Cosmochimica Acta AU - Wu, Yuxin AU - Ajo-Franklin, Jonathan AU - Armstrong, Ryan AU - Hubbard, Susan AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - P-waves KW - body waves KW - imagery KW - electrical properties KW - monitoring KW - organic minerals KW - in situ KW - elastic properties KW - hydrolysis KW - elastic waves KW - crystal growth KW - urea KW - precipitation KW - calcium carbonate KW - seismic waves KW - carbonates KW - SEM data KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008818807?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Noninvasive+geophysical+imaging+of+ureolytic+CaCO+%28sub+3%29+precipitation&rft.au=Wu%2C+Yuxin%3BAjo-Franklin%2C+Jonathan%3BArmstrong%2C+Ryan%3BHubbard%2C+Susan%3BAnonymous&rft.aulast=Wu&rft.aufirst=Yuxin&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A1149&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - body waves; calcium carbonate; carbonates; crystal growth; elastic properties; elastic waves; electrical properties; hydrolysis; imagery; in situ; monitoring; organic minerals; P-waves; precipitation; seismic waves; SEM data; urea ER - TY - JOUR T1 - Nanoparticle surface properties deduced from single crystal mineral/water interface studies AN - 1008817653; 2012-038632 JF - Geochimica et Cosmochimica Acta AU - Waychunas, G A AU - Sung, J AU - Shen, Y R AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - experimental studies KW - laser methods KW - optical spectra KW - mineral-water interface KW - bonding KW - laboratory studies KW - single-crystal method KW - hydrogen KW - sapphire KW - oxides KW - spectra KW - nanoparticles KW - mineral surface KW - electrons KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Nanoparticle+surface+properties+deduced+from+single+crystal+mineral%2Fwater+interface+studies&rft.au=Waychunas%2C+G+A%3BSung%2C+J%3BShen%2C+Y+R%3BAnonymous&rft.aulast=Waychunas&rft.aufirst=G&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A1118&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Document feature - illus. N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - bonding; electrons; experimental studies; hydrogen; laboratory studies; laser methods; mineral surface; mineral-water interface; nanoparticles; optical spectra; oxides; sapphire; single-crystal method; spectra ER - TY - JOUR T1 - Isotope separation by diffusion; competing effects of chemical and isotopic exchange AN - 1008817639; 2012-038630 JF - Geochimica et Cosmochimica Acta AU - Watkins, J AU - Peterson, B AU - Depaolo, D J AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - liquid phase KW - calcium KW - alkaline earth metals KW - magnesium KW - experimental studies KW - diffusion KW - isotopes KW - natural materials KW - homogenization KW - siliceous composition KW - laboratory studies KW - metals KW - geochemistry KW - synthetic materials KW - 02D:Isotope geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008817639?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Isotope+separation+by+diffusion%3B+competing+effects+of+chemical+and+isotopic+exchange&rft.au=Watkins%2C+J%3BPeterson%2C+B%3BDepaolo%2C+D+J%3BAnonymous&rft.aulast=Watkins&rft.aufirst=J&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A1117&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - alkaline earth metals; calcium; diffusion; experimental studies; geochemistry; homogenization; isotopes; laboratory studies; liquid phase; magnesium; metals; natural materials; siliceous composition; synthetic materials ER - TY - JOUR T1 - Prens adalari fayindaki depremlerin kaynak parametrelerinin eszamanli ve tekil ters cozum teknikleri ile belirlenmesi TT - Analysis of earthquake source parameters in Prince Islands fault zone with the use of simultaneous and individual inversion techniques AN - 1008816893; 2012-037063 AB - In this study we analyzed the aftershocks of the 1999 Izmit earthquake that took place along the 40-km-long Prince's island segment of the North Anatolian Fault which is the nearest trace of the fault to the city of Istanbul. The seismic moment magnitudes of these events range between 3.1< or =Mw< or =5.2 and the focal mechanism solutions are available. We compiled the waveforms of the broadband stations running in the region, rotated them to obtain the radial and transversal components, and corrected for the radiation pattern and geometrical spreading effects. We estimated the source parameters (seismic moment, Mo; corner frequency, fc) using the simultaneous inversion technique (NetMoment) developed by Hutchings (2004) that use the S-phases of the events recorded by local seismic networks. This method can also be used to derive the source parameters of earthquakes recorded at single station. The resulting parameters are estimated from the best fitting theoretical spectrum which is obtained through non-linear least square fitting of the observed S-wave displacement spectrum to the Brune omega squared (w2) source displacement spectrum (Brune, 1970). JF - Yerbilimleri Dergisi = Engineering Faculty's Earth Sciences Review AU - Mert, Aydin AU - Pinar, Ali AU - Fahjan, Yasin M AU - Hutchings, Lawrance J Y1 - 2010 PY - 2010 DA - 2010 SP - 53 EP - 63 PB - Istanbul Universitesi, Muhendislik Fakultesi, Istanbul VL - 23 IS - 1 SN - 1016-9806, 1016-9806 KW - body waves KW - focal mechanism KW - North Anatolian Fault KW - seismic moment KW - Izmit earthquake 1999 KW - statistical analysis KW - data processing KW - Turkey KW - inverse problem KW - elastic waves KW - displacements KW - least-squares analysis KW - seismic waves KW - seismic networks KW - Asia KW - earthquakes KW - S-waves KW - Prince Island Fault KW - Middle East KW - faults KW - 19:Seismology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008816893?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Yerbilimleri+Dergisi+%3D+Engineering+Faculty%27s+Earth+Sciences+Review&rft.atitle=Prens+adalari+fayindaki+depremlerin+kaynak+parametrelerinin+eszamanli+ve+tekil+ters+cozum+teknikleri+ile+belirlenmesi&rft.au=Mert%2C+Aydin%3BPinar%2C+Ali%3BFahjan%2C+Yasin+M%3BHutchings%2C+Lawrance+J&rft.aulast=Mert&rft.aufirst=Aydin&rft.date=2010-01-01&rft.volume=23&rft.issue=1&rft.spage=53&rft.isbn=&rft.btitle=&rft.title=Yerbilimleri+Dergisi+%3D+Engineering+Faculty%27s+Earth+Sciences+Review&rft.issn=10169806&rft_id=info:doi/ L2 - http://www.istanbul.edu.tr/eng2/jeoloji/yerbilimleridergisi/ciltler.html LA - Turkish DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 21 N1 - Document feature - illus. incl. 3 tables, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - Asia; body waves; data processing; displacements; earthquakes; elastic waves; faults; focal mechanism; inverse problem; Izmit earthquake 1999; least-squares analysis; Middle East; North Anatolian Fault; Prince Island Fault; S-waves; seismic moment; seismic networks; seismic waves; statistical analysis; Turkey ER - TY - JOUR T1 - Observing iron redox dynamics at the nanosecond scale with time-resolved X-ray spectroscopy AN - 1008816308; 2012-038755 JF - Geochimica et Cosmochimica Acta AU - Gilbert, Benjamin AU - Katz, Jordan AU - Zhang, Hengzhong AU - Banfield, Jill AU - Falcone, Roger AU - Waychunas, Glenn A AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - technology KW - iron oxides KW - solution KW - iron KW - chemical reactions KW - X-ray analysis KW - oxides KW - mineral surface KW - Eh KW - experimental studies KW - chemical analysis KW - biochemistry KW - oxyhydroxides KW - rates KW - ferrihydrite KW - geochemical cycle KW - ferrous iron KW - molecular structure KW - hydroxides KW - time-resolved X-ray spectroscopy KW - metals KW - X-ray spectroscopy KW - spectroscopy KW - maghemite KW - 01C:Mineralogy of non-silicates KW - 02A:General geochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008816308?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Observing+iron+redox+dynamics+at+the+nanosecond+scale+with+time-resolved+X-ray+spectroscopy&rft.au=Gilbert%2C+Benjamin%3BKatz%2C+Jordan%3BZhang%2C+Hengzhong%3BBanfield%2C+Jill%3BFalcone%2C+Roger%3BWaychunas%2C+Glenn+A%3BAnonymous&rft.aulast=Gilbert&rft.aufirst=Benjamin&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A330&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - biochemistry; chemical analysis; chemical reactions; Eh; experimental studies; ferrihydrite; ferrous iron; geochemical cycle; hydroxides; iron; iron oxides; maghemite; metals; mineral surface; molecular structure; oxides; oxyhydroxides; rates; solution; spectroscopy; technology; time-resolved X-ray spectroscopy; X-ray analysis; X-ray spectroscopy ER - TY - JOUR T1 - Structure and reactivity of hydrated goethite (100) interface and arsenic sorption; CTR and RAXR study AN - 1008815858; 2012-038751 JF - Geochimica et Cosmochimica Acta AU - Ghose, Sanjit K AU - Waychunas, Glenn A AU - Eng, Peter J AU - Trainor, Thomas P AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - water KW - sorption KW - experimental studies KW - goethite KW - arsenic KW - pollution KW - CTR diffraction KW - crystal truncation rod diffraction KW - crystal structure KW - laboratory studies KW - hydroxyl ion KW - hydration KW - reactivity KW - RAXR method KW - X-ray data KW - resonance anomalous X-ray reflectivity KW - chemical reactions KW - metals KW - oxides KW - crystal chemistry KW - geochemistry KW - mineral surface KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815858?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Structure+and+reactivity+of+hydrated+goethite+%28100%29+interface+and+arsenic+sorption%3B+CTR+and+RAXR+study&rft.au=Ghose%2C+Sanjit+K%3BWaychunas%2C+Glenn+A%3BEng%2C+Peter+J%3BTrainor%2C+Thomas+P%3BAnonymous&rft.aulast=Ghose&rft.aufirst=Sanjit&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A328&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 1 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - arsenic; chemical reactions; crystal chemistry; crystal structure; crystal truncation rod diffraction; CTR diffraction; experimental studies; geochemistry; goethite; hydration; hydroxyl ion; laboratory studies; metals; mineral surface; oxides; pollution; RAXR method; reactivity; resonance anomalous X-ray reflectivity; sorption; water; X-ray data ER - TY - JOUR T1 - Spectro-microscopy of carbonaceous particulates AN - 1008815406; 2012-038760 JF - Geochimica et Cosmochimica Acta AU - Gilles, Mary K AU - Moffet, R C AU - Laskin, A AU - Anonymous Y1 - 2010 PY - 2010 DA - 2010 SP - 1 PB - Elsevier, New York, NY VL - 74 IS - 12, Suppl. 1 SN - 0016-7037, 0016-7037 KW - urban environment KW - air pollution KW - MILAGRO Program KW - laboratory studies KW - Mexico state KW - mixing KW - carbon KW - Federal District Mexico KW - spectra KW - particulate materials KW - carbonaceous composition KW - experimental studies KW - Mexico City Mexico KW - physicochemical properties KW - photochemistry KW - pollution KW - atmosphere KW - X-ray spectra KW - EDS spectra KW - organic compounds KW - Mexico KW - EXAFS data KW - rural environment KW - aerosols KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1008815406?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Spectro-microscopy+of+carbonaceous+particulates&rft.au=Gilles%2C+Mary+K%3BMoffet%2C+R+C%3BLaskin%2C+A%3BAnonymous&rft.aulast=Gilles&rft.aufirst=Mary&rft.date=2010-01-01&rft.volume=74&rft.issue=12%2C+Suppl.+1&rft.spage=A332&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/ L2 - http://goldschmidt.info/2010/abstracts/A-Z+Index.pdf http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Conference title - 20th annual V. M. Goldschmidt conference N1 - Copyright - GeoRef, Copyright 2014, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 2 N1 - PubXState - NY N1 - Last updated - 2014-09-18 N1 - SubjectsTermNotLitGenreText - aerosols; air pollution; atmosphere; carbon; carbonaceous composition; EDS spectra; EXAFS data; experimental studies; Federal District Mexico; laboratory studies; Mexico; Mexico City Mexico; Mexico state; MILAGRO Program; mixing; organic compounds; particulate materials; photochemistry; physicochemical properties; pollution; rural environment; spectra; urban environment; X-ray spectra ER - TY - JOUR T1 - Study of Enzymatic Digestion of Cellulose by Small Angle Neutron Scattering AN - 754550166; 13303202 AB - Small angle neutron scattering (SANS) was used to study the structure of Avicel (FD100) microcrystalline cellulose during enzymatic digestion. Digestions were performed in either of two modes: a static, quiescent mode or a dynamic mode using a stirred suspension recycled through a flow cell. The scattering pattern for as-received Avicel in D2O buffer is comprised of a low Q power law region resulting from the surface fractal character of the microcrystalline fibers and a high Q roll-off due to scattering from water-filled nanopores with radii 20 A. For digestions in the dynamic mode the high Q roll-off decreased in magnitude within 1 h after addition of enzymes, whereas in the static digestions no change was observed in the high Q roll-off, even after 60 h. These results indicate that only with significant agitation does enzyme digestion affect the structure of the nanopores. JF - Biomacromolecules AU - Kent, M S AU - Cheng, G AU - Murton, J K AU - Carles, E L AU - Dibble, D C AU - Zendejas, F AU - Rodriquez, M A AU - Tran, H AU - Holmes, B AU - Simmons, B A AD - Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87123, Sandia National Laboratories, P.O. Box 969, Livermore, California 94551, and Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, California 94608 Y1 - 2009/12/30/ PY - 2009 DA - 2009 Dec 30 SP - 357 EP - 368 PB - American Chemical Society, P.O. Box 182426 Columbus OH 43218-2426 USA VL - 11 IS - 2 SN - 1525-7797, 1525-7797 KW - Biotechnology and Bioengineering Abstracts KW - Digestion KW - Fractals KW - Fibers KW - Neutron scattering KW - Cellulose KW - Enzymes KW - Agitation KW - W 30935:Food Biotechnology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754550166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biomacromolecules&rft.atitle=Study+of+Enzymatic+Digestion+of+Cellulose+by+Small+Angle+Neutron+Scattering&rft.au=Kent%2C+M+S%3BCheng%2C+G%3BMurton%2C+J+K%3BCarles%2C+E+L%3BDibble%2C+D+C%3BZendejas%2C+F%3BRodriquez%2C+M+A%3BTran%2C+H%3BHolmes%2C+B%3BSimmons%2C+B+A&rft.aulast=Kent&rft.aufirst=M&rft.date=2009-12-30&rft.volume=11&rft.issue=2&rft.spage=357&rft.isbn=&rft.btitle=&rft.title=Biomacromolecules&rft.issn=15257797&rft_id=info:doi/10.1021%2Fbm9008952 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Digestion; Fibers; Fractals; Neutron scattering; Cellulose; Enzymes; Agitation DO - http://dx.doi.org/10.1021/bm9008952 ER - TY - JOUR T1 - Large-scale simulation of methane hydrate dissociation along the West Spitsbergen Margin AN - 21318947; 11914131 AB - Vast quantities of methane are trapped in oceanic hydrate deposits, and there is concern that a rise in the ocean temperature will induce dissociation of these hydrate accumulations, potentially releasing large amounts of methane into the atmosphere. The recent discovery of active methane gas venting along the landward limit of the gas hydrate stability zone (GHSZ) on the shallow continental slope west of Spitsbergen could be an indication of this process, if the source of the methane can be confidently attributed to dissociating hydrates. In the first large-scale simulation study of its kind, we simulate shallow hydrate dissociation in conditions representative of the West Spitsbergen margin to test the hypothesis that the observed gas release originated from hydrates. The simulation results are consistent with this hypothesis, and are in remarkable agreement with the recently published observations. They show that shallow, low-saturation hydrate deposits, when subjected to temperature increases at the seafloor, can release significant quantities of methane, and that the releases will be localized near the landward limit of the top of the GHSZ. These results indicate the possibility that hydrate dissociation and methane release may be both a consequence and a cause of climate change. JF - Geophysical Research Letters AU - Reagan, Matthew T AU - Moridis, George J AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2009/12/15/ PY - 2009 DA - 2009 Dec 15 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA VL - 36 IS - 23 SN - 0094-8276, 0094-8276 KW - Sustainability Science Abstracts; Oceanic Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources KW - 3004 Marine Geology and Geophysics: Gas and hydrate systems KW - 1605 Global Change: Abrupt/rapid climate change KW - 4902 Paleoceanography: Anthropogenic effects KW - gas hydrates KW - methane clathrates KW - abrupt change KW - hydrates KW - Marine KW - Methane KW - Atmospheric gases KW - Continental slope KW - Climate change KW - Temperature KW - Simulation KW - Atmosphere KW - Ocean temperature KW - PNE, Norway, Svalbard, Spitsbergen KW - Gas hydrates KW - Hydrates KW - Ocean floor KW - O 3010:Geology and Geophysics KW - Q2 09184:Composition of water KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21318947?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Research+Letters&rft.atitle=Large-scale+simulation+of+methane+hydrate+dissociation+along+the+West+Spitsbergen+Margin&rft.au=Reagan%2C+Matthew+T%3BMoridis%2C+George+J&rft.aulast=Reagan&rft.aufirst=Matthew&rft.date=2009-12-15&rft.volume=36&rft.issue=23&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geophysical+Research+Letters&rft.issn=00948276&rft_id=info:doi/10.1029%2F2009GL041332 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-03-01 N1 - Number of references - 19 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Methane; Atmospheric gases; Gas hydrates; Continental slope; Climate change; Hydrates; Ocean floor; hydrates; Ocean temperature; gas hydrates; Temperature; Simulation; Atmosphere; PNE, Norway, Svalbard, Spitsbergen; Marine DO - http://dx.doi.org/10.1029/2009GL041332 ER - TY - CPAPER T1 - On the orientation-dependent toughness of human cortical bone in the presence of realistically short cracks T2 - Third International Conference on Mechanics of Biomaterials & Tissues (ICMOBT 2009) AN - 42286389; 5625300 JF - Third International Conference on Mechanics of Biomaterials & Tissues (ICMOBT 2009) AU - Ritchie, R AU - Ager III, J AU - Koester, K Y1 - 2009/12/13/ PY - 2009 DA - 2009 Dec 13 KW - Bone (cortical) KW - Mechanical properties KW - Toughness KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42286389?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+International+Conference+on+Mechanics+of+Biomaterials+%26+Tissues+%28ICMOBT+2009%29&rft.atitle=On+the+orientation-dependent+toughness+of+human+cortical+bone+in+the+presence+of+realistically+short+cracks&rft.au=Ritchie%2C+R%3BAger+III%2C+J%3BKoester%2C+K&rft.aulast=Ritchie&rft.aufirst=R&rft.date=2009-12-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+International+Conference+on+Mechanics+of+Biomaterials+%26+Tissues+%28ICMOBT+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.icmobt.elsevier.com/program09.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Nature-inspired hybrid structural materials T2 - Third International Conference on Mechanics of Biomaterials & Tissues (ICMOBT 2009) AN - 42285015; 5625244 JF - Third International Conference on Mechanics of Biomaterials & Tissues (ICMOBT 2009) AU - Ritchie, R AU - Tomsia, A AU - Saiz, E AU - Launey, M AU - Alsem, D AU - Munch, E Y1 - 2009/12/13/ PY - 2009 DA - 2009 Dec 13 KW - Hybrids KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42285015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+International+Conference+on+Mechanics+of+Biomaterials+%26+Tissues+%28ICMOBT+2009%29&rft.atitle=Nature-inspired+hybrid+structural+materials&rft.au=Ritchie%2C+R%3BTomsia%2C+A%3BSaiz%2C+E%3BLauney%2C+M%3BAlsem%2C+D%3BMunch%2C+E&rft.aulast=Ritchie&rft.aufirst=R&rft.date=2009-12-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=13th+European+Conference+on+Applications+of+Surface+and+Interface+Analysis+%28ECASIA+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.icmobt.elsevier.com/program09.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Functional Polymers: from design to applications T2 - 11th Pacific Polymer Conference (PPC 11) AN - 42262528; 5612039 JF - 11th Pacific Polymer Conference (PPC 11) AU - Frechet, Jean Y1 - 2009/12/06/ PY - 2009 DA - 2009 Dec 06 KW - Polymers KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42262528?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=11th+Pacific+Polymer+Conference+%28PPC+11%29&rft.atitle=Functional+Polymers%3A+from+design+to+applications&rft.au=Frechet%2C+Jean&rft.aulast=Frechet&rft.aufirst=Jean&rft.date=2009-12-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=11th+Pacific+Polymer+Conference+%28PPC+11%29&rft.issn=&rft_id=info:doi/ L2 - https://leishman.conference-services.net/programme.asp?conferenceID=16 04&language=en-uk LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - A Functional Map of the Nuclear Pore Complex via High Precision Tracking of Single Molecules T2 - American Society for Cell Biology 49th Annual Meeting AN - 42327520; 5648392 JF - American Society for Cell Biology 49th Annual Meeting AU - Siegel, J AU - Lowe, A AU - Kalab, P AU - Siu, M AU - Weis, K AU - Liphardt, J Y1 - 2009/12/05/ PY - 2009 DA - 2009 Dec 05 KW - Nuclear pores KW - Tracking KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42327520?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=American+Society+for+Cell+Biology+49th+Annual+Meeting&rft.atitle=A+Functional+Map+of+the+Nuclear+Pore+Complex+via+High+Precision+Tracking+of+Single+Molecules&rft.au=Siegel%2C+J%3BLowe%2C+A%3BKalab%2C+P%3BSiu%2C+M%3BWeis%2C+K%3BLiphardt%2C+J&rft.aulast=Siegel&rft.aufirst=J&rft.date=2009-12-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Society+for+Cell+Biology+49th+Annual+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.ascb.org/meetings/Docs/FINAL%20PROGRAM_lo%20res%20for%20web .pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Structural Model of Microtubule Lateral Deformation Based on Studies of Multiple Types of Microtubules T2 - American Society for Cell Biology 49th Annual Meeting AN - 42322157; 5647309 JF - American Society for Cell Biology 49th Annual Meeting AU - Sui, H AU - Downing, K Y1 - 2009/12/05/ PY - 2009 DA - 2009 Dec 05 KW - Deformation KW - Microtubules KW - Models KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42322157?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=American+Society+for+Cell+Biology+49th+Annual+Meeting&rft.atitle=Structural+Model+of+Microtubule+Lateral+Deformation+Based+on+Studies+of+Multiple+Types+of+Microtubules&rft.au=Sui%2C+H%3BDowning%2C+K&rft.aulast=Sui&rft.aufirst=H&rft.date=2009-12-05&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=American+Society+for+Cell+Biology+49th+Annual+Meeting&rft.issn=&rft_id=info:doi/ L2 - http://www.ascb.org/meetings/Docs/FINAL%20PROGRAM_lo%20res%20for%20web .pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Basin-scale hydrogeologic impacts of CO sub(2 storage: Capacity and regulatory implications) AN - 876250115; 15118312 AB - Industrial-scale injection of CO sub(2 into saline formations in sedimentary basins will cause large-scale fluid pressurization and migration of native brines, which may affect valuable groundwater resources overlying the deep sequestration aquifers. In this paper, we discuss how such basin-scale hydrogeologic impacts (1) may reduce current storage capacity estimates, and (2) can affect regulation of CO) sub(2) storage projects. Our assessment arises from a hypothetical future carbon sequestration scenario in the Illinois Basin, which involves twenty individual CO sub(2 storage projects (sites) in a core injection area most suitable for long-term storage. Each project is assumed to inject five million tonnes of CO) sub(2) per year for 50 years. A regional-scale three-dimensional simulation model was developed for the Illinois Basin that captures both the local-scale CO sub(2-brine flow processes and the large-scale groundwater flow patterns in response to CO) sub(2) storage. The far-field pressure buildup predicted for this selected sequestration scenario support recent studies in that environmental concerns related to near- and far-field pressure buildup may be a limiting factor on CO sub(2 storage capacity. In other words, estimates of storage capacity, if solely based on the effective pore volume available for safe trapping of CO) sub(2), may have to be revised based on assessments of pressure perturbations and their potential impacts on caprock integrity and groundwater resources. Our results suggest that (1) the area that needs to be characterized in a permitting process may comprise a very large region within the basin if reservoir pressurization is considered, and (2) permits cannot be granted on a single-site basis alone because the near- and far-field hydrogeologic response may be affected by interference between individual storage sites. We also discuss some of the challenges in making reliable predictions of large-scale hydrogeologic impacts related to CO sub(2 sequestration projects.) JF - International Journal of Greenhouse Gas Control AU - Birkholzer, Jens T AU - Zhou, Quanlin Y1 - 2009/12// PY - 2009 DA - Dec 2009 SP - 745 EP - 756 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 3 IS - 6 SN - 1750-5836, 1750-5836 KW - Sustainability Science Abstracts; Environment Abstracts; Pollution Abstracts KW - Aquifers KW - Carbon dioxide KW - USA, Illinois, Illinois Basin KW - P 0000:AIR POLLUTION KW - ENA 20:Weather Modification & Geophysical Change KW - M3:1010 UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/876250115?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=Basin-scale+hydrogeologic+impacts+of+CO+sub%282+storage%3A+Capacity+and+regulatory+implications%29&rft.au=Birkholzer%2C+Jens+T%3BZhou%2C+Quanlin&rft.aulast=Birkholzer&rft.aufirst=Jens&rft.date=2009-12-01&rft.volume=3&rft.issue=6&rft.spage=745&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2009.07.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2011-07-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - Carbon dioxide; USA, Illinois, Illinois Basin DO - http://dx.doi.org/10.1016/j.ijggc.2009.07.002 ER - TY - JOUR T1 - Carboxylated molecules regulate magnesium content of amorphous calcium carbonates during calcification AN - 875014032; 2011-056396 JF - Proceedings of the National Academy of Sciences of the United States of America AU - Wang, Dongbo AU - Wallace, Adam F AU - De Yoreo, James J AU - Dove, Patricia M Y1 - 2009/12// PY - 2009 DA - December 2009 SP - 21511 EP - 21516 PB - National Academy of Sciences, Washington, DC VL - 106 IS - 51 SN - 0027-8424, 0027-8424 KW - malonic acid KW - calcium KW - magnesium KW - glutamic acid KW - microclimate KW - citric acid KW - paleoclimatology KW - tartaric acid KW - dolomite KW - chemical reactions KW - amino acids KW - carboxylic acids KW - calcium carbonate KW - oxydiacetic acid KW - biomineralization KW - alkaline earth metals KW - carbonate ion KW - amorphous materials KW - calcification KW - bicarbonate ion KW - Mg/Ca KW - calcite KW - organic compounds KW - organic acids KW - biogenic processes KW - precipitation KW - metals KW - proteins KW - carbonates KW - aspartic acid KW - 02C:Geochemistry of rocks, soils, and sediments KW - 01C:Mineralogy of non-silicates UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/875014032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Carboxylated+molecules+regulate+magnesium+content+of+amorphous+calcium+carbonates+during+calcification&rft.au=Vasco%2C+D%3BRucci%2C+Alessio%3BFerretti%2C+Alessandro%3BNovali%2C+Fabrizio%3BBissell%2C+Rob%3BRingrose%2C+Philip%3BMathieson%2C+Allan%3BWright%2C+Iain&rft.aulast=Vasco&rft.aufirst=D&rft.date=2009-10-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Annual+Meeting+of+the+Geology+Society+of+America&rft.issn=&rft_id=info:doi/ L2 - http://www.pnas.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2011-01-01 N1 - Number of references - 52 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - alkaline earth metals; amino acids; amorphous materials; aspartic acid; bicarbonate ion; biogenic processes; biomineralization; calcification; calcite; calcium; calcium carbonate; carbonate ion; carbonates; carboxylic acids; chemical reactions; citric acid; dolomite; glutamic acid; magnesium; malonic acid; metals; Mg/Ca; microclimate; organic acids; organic compounds; oxydiacetic acid; paleoclimatology; precipitation; proteins; tartaric acid DO - http://dx.doi.org/10.1073/pnas.0906741106 ER - TY - JOUR T1 - Response to 'Does filter media type really affect BRS?' AN - 759314928; 13666106 AB - Abstract not available. JF - Indoor Air AU - Apte, M G AD - Indoor Environment Department, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2009/12// PY - 2009 DA - Dec 2009 SP - 526 EP - 528 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 19 IS - 6 SN - 0905-6947, 0905-6947 KW - Pollution Abstracts KW - Filters KW - Indoor environments KW - P 0000:AIR POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/759314928?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indoor+Air&rft.atitle=Response+to+%27Does+filter+media+type+really+affect+BRS%3F%27&rft.au=Apte%2C+M+G&rft.aulast=Apte&rft.aufirst=M&rft.date=2009-12-01&rft.volume=19&rft.issue=6&rft.spage=526&rft.isbn=&rft.btitle=&rft.title=Indoor+Air&rft.issn=09056947&rft_id=info:doi/10.1111%2Fj.1600-0668.2009.00616.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-10-01 N1 - Number of references - 1 N1 - Last updated - 2015-04-02 N1 - SubjectsTermNotLitGenreText - Filters; Indoor environments DO - http://dx.doi.org/10.1111/j.1600-0668.2009.00616.x ER - TY - JOUR T1 - Evaluation of the gas production potential of marine hydrate deposits in the Ulleung Basin of the Korean East Sea AN - 742900884; 2010-039060 AB - Although significant hydrate deposits are known to exist in the Ulleung basin of the Korean East Sea, their survey and evaluation as a possible energy resource has not yet been completed. However, it is possible to develop preliminary estimates of their production potential based on the limited data that are currently available. These include the elevation and thickness of the hydrate-bearing layer (HBL), the water depth, and the water temperature at the seafloor. On the basis of this information, we developed estimates of the local geothermal gradient that bracket its true value. Reasonable estimates of the initial pressure distribution in the HBL can be obtained because it follows closely the hydrostatic. Other critical information needs include the hydrate saturation, and the intrinsic permeabilities of the system formations. These are treated as variables, and sensitivity analysis provides an estimate of their effect on production. On the basis of the geology of similar deposits, it is unlikely that Ulleung basin accumulations belong to Class 1 (involving an HBL underlain by a mobile gas zone). If Class 4 (disperse, low-saturation accumulations) deposits are involved, they are not likely to have production potential. The most likely scenarios include Class 2 (HBL underlain by a zone of mobile water) or Class 3 (involving only an HBL) accumulations. Assuming nearly impermeable confining boundaries, this numerical study indicates that large production rates (several million scf/D) are attainable from both Class 2 and Class 3 deposits using conventional technology. The sensitivity analysis demonstrates the dependence of production on the well design, the production rate, the intrinsic permeability of the HBL, the initial pressure, temperature, and hydrate saturation, as well as on the thickness of the water zone (Class 2). The study also demonstrates that the presence of confining boundaries is indispensable for the commercially viable production of gas from these deposits. JF - SPE Journal AU - Moridis, George J AU - Reagan, Matthew T AU - Kim, Se-Joon AU - Seol, Yongkoo AU - Zhang, Keni Y1 - 2009/12// PY - 2009 DA - December 2009 SP - 759 EP - 781 PB - Society of Petroleum Engineers, Richardson, TX VL - 14 IS - 4 SN - 1086-055X, 1086-055X KW - Japan Sea KW - gas hydrates KW - offshore KW - sedimentary basins KW - natural gas KW - petroleum KW - simulation KW - production KW - West Pacific KW - reservoir rocks KW - Cenozoic KW - spatial distribution KW - marine sediments KW - sensitivity analysis KW - sediments KW - basins KW - thickness KW - geothermal gradient KW - Northwest Pacific KW - Ulleung Basin KW - Quaternary KW - pressure KW - numerical models KW - Paleogene KW - petroleum accumulation KW - Tertiary KW - North Pacific KW - Pacific Ocean KW - classification KW - reservoir properties KW - permeability KW - Oligocene KW - 29A:Economic geology, geology of energy sources UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742900884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=SPE+Journal&rft.atitle=Evaluation+of+the+gas+production+potential+of+marine+hydrate+deposits+in+the+Ulleung+Basin+of+the+Korean+East+Sea&rft.au=Moridis%2C+George+J%3BReagan%2C+Matthew+T%3BKim%2C+Se-Joon%3BSeol%2C+Yongkoo%3BZhang%2C+Keni&rft.aulast=Moridis&rft.aufirst=George&rft.date=2009-12-01&rft.volume=14&rft.issue=4&rft.spage=759&rft.isbn=&rft.btitle=&rft.title=SPE+Journal&rft.issn=1086055X&rft_id=info:doi/ L2 - http://www.spe.org/papers/pubs/SPEjournal.php LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 31 N1 - PubXState - TX N1 - Document feature - illus. incl. 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - basins; Cenozoic; classification; gas hydrates; geothermal gradient; Japan Sea; marine sediments; natural gas; North Pacific; Northwest Pacific; numerical models; offshore; Oligocene; Pacific Ocean; Paleogene; permeability; petroleum; petroleum accumulation; pressure; production; Quaternary; reservoir properties; reservoir rocks; sedimentary basins; sediments; sensitivity analysis; simulation; spatial distribution; Tertiary; thickness; Ulleung Basin; West Pacific ER - TY - JOUR T1 - Modeling acid-gas generation from boiling chloride brines AN - 1832627082; 699028-1 AB - This study investigates the generation of HCl and other acid gases from boiling calcium chloride dominated waters at atmospheric pressure, primarily using numerical modeling. The main focus of this investigation relates to the long-term geologic disposal of nuclear waste at Yucca Mountain, Nevada, where pore waters around waste-emplacement tunnels are expected to undergo boiling and evaporative concentration as a result of the heat released by spent nuclear fuel. Processes that are modeled include boiling of highly concentrated solutions, gas transport, and gas condensation accompanied by the dissociation of acid gases, causing low-pH condensate.Simple calculations are first carried out to evaluate condensate pH as a function of HCl gas fugacity and condensed water fraction for a vapor equilibrated with saturated calcium chloride brine at 50-150 C and 1 bar. The distillation of a calcium-chloride-dominated brine is then simulated with a reactive transport model using a brine composition representative of partially evaporated calcium-rich pore waters at Yucca Mountain. Results show a significant increase in boiling temperature from evaporative concentration, as well as low pH in condensates, particularly for dynamic systems where partial condensation takes place, which result in enrichment of HCl in condensates. These results are in qualitative agreement with experimental data from other studies. The combination of reactive transport with multicomponent brine chemistry to study evaporation, boiling, and the potential for acid gas generation at the proposed Yucca Mountain repository is seen as an improvement relative to previously applied simpler batch evaporation models. This approach allows the evaluation of thermal, hydrological, and chemical (THC) processes in a coupled manner, and modeling of settings much more relevant to actual field conditions than the distillation experiment considered. The actual and modeled distillation experiments do not represent expected conditions in an emplacement drift, but nevertheless illustrate the potential for acid-gas generation at moderate temperatures ( (sub 150 (super C). JF - Geochemical Transactions AU - Zhang, Guoxiang AU - Spycher, Nicolas AU - Sonnenthal, Eric AU - Steelfel, Carl Y1 - 2009/12// PY - 2009 DA - December 2009 SP - 10 PB - Springer for Royal Society of Chemistry, London VL - 10 IS - 11 SN - 1467-4866, 1467-4866 KW - United States KW - chlorinated hydrocarbons KW - calcium chloride KW - solutions KW - halogens KW - waste disposal sites KW - fugacity KW - radioactive waste KW - ground water KW - transport KW - chloride ion KW - reactive transport KW - halogenated hydrocarbons KW - acidic composition KW - Yucca Mountain KW - pH KW - Nevada KW - chlorine KW - experimental studies KW - numerical models KW - gaseous phase KW - Nye County Nevada KW - gases KW - organic compounds KW - boiling KW - brines KW - waste disposal KW - underground disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1832627082?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochemical+Transactions&rft.atitle=Modeling+acid-gas+generation+from+boiling+chloride+brines&rft.au=Zhang%2C+Guoxiang%3BSpycher%2C+Nicolas%3BSonnenthal%2C+Eric%3BSteelfel%2C+Carl&rft.aulast=Zhang&rft.aufirst=Guoxiang&rft.date=2009-12-01&rft.volume=10&rft.issue=11&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Geochemical+Transactions&rft.issn=14674866&rft_id=info:doi/10.1186%2F1467-4866-10-11 L2 - http://www.geochemicaltransactions.com/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2017, American Geosciences Institute. After editing and indexing, this record will be added to Georef. N1 - Number of references - 38 N1 - Document feature - illus. incl. 3 tables N1 - Last updated - 2017-01-24 N1 - SubjectsTermNotLitGenreText - acidic composition; boiling; brines; calcium chloride; chloride ion; chlorinated hydrocarbons; chlorine; experimental studies; fugacity; gaseous phase; gases; ground water; halogenated hydrocarbons; halogens; Nevada; numerical models; Nye County Nevada; organic compounds; pH; radioactive waste; reactive transport; solutions; transport; underground disposal; United States; waste disposal; waste disposal sites; Yucca Mountain DO - http://dx.doi.org/10.1186/1467-4866-10-11 ER - TY - JOUR T1 - On mobilization of lead and arsenic in groundwater in response to CO sub(2) leakage from deep geological storage AN - 21081146; 11200455 AB - If carbon dioxide stored in deep saline aquifers were to leak into an overlying aquifer containing potable groundwater, the intruding CO sub(2) would change the geochemical conditions and cause secondary effects mainly induced by changes in pH. In particular, hazardous trace elements such as lead and arsenic, which are present in the aquifer host rock, could be mobilized. In an effort to evaluate the potential risks to potable water quality, reactive transport simulations were conducted to evaluate to what extent and mechanisms through which lead and arsenic might be mobilized by intrusion of CO sub(2). An earlier geochemical evaluation of more than 38,000 groundwater quality analyses from aquifers throughout the United States and an associated literature review provided the basis for setting up a reactive transport model and examining its sensitivity to model variation. The evaluation included identification of potential mineral hosts containing hazardous trace elements, characterization of the modal bulk mineralogy for an arenaceous aquifer, and augmentation of the required thermodynamic data. The reactive transport simulations suggest that CO sub(2) ingress into a shallow aquifer can mobilize significant lead and arsenic, contaminating the groundwater near the location of intrusion and further downstream. Although substantial increases in aqueous concentrations are predicted compared to the background values, the maximum permitted concentration for arsenic in drinking water was exceeded in only a few cases, whereas that for lead was never exceeded. JF - Chemical Geology AU - Zheng, L AU - Apps, JA AU - Zhang, Y AU - Xu, T AU - Birkholzer, J T AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Mail Stop 90-1116, Berkeley, CA, 94709, USA, lzheng@lbl.gov Y1 - 2009/11/30/ PY - 2009 DA - 2009 Nov 30 SP - 281 EP - 297 PB - Elsevier Science, The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:usinfo-f@elsevier.com], [URL:http://www.elsevier.nl] VL - 268 IS - 3-4 SN - 0009-2541, 0009-2541 KW - Pollution Abstracts; Water Resources Abstracts KW - Aquifers KW - Groundwater Pollution KW - Lead KW - Trace elements KW - Evaluation KW - Geology KW - pH KW - Sensitivity KW - Arsenic KW - Leakage KW - Thermodynamics KW - Geochemistry KW - Simulation KW - Trace Elements KW - mineralogy KW - Model Studies KW - USA KW - Reviews KW - Geohydrology KW - downstream KW - Groundwater pollution KW - Drinking water KW - Groundwater KW - Carbon dioxide KW - Minerals KW - Carbon Dioxide KW - P 0000:AIR POLLUTION KW - SW 3060:Water treatment and distribution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21081146?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=On+mobilization+of+lead+and+arsenic+in+groundwater+in+response+to+CO+sub%282%29+leakage+from+deep+geological+storage&rft.au=Zheng%2C+L%3BApps%2C+JA%3BZhang%2C+Y%3BXu%2C+T%3BBirkholzer%2C+J+T&rft.aulast=Zheng&rft.aufirst=L&rft.date=2009-11-30&rft.volume=268&rft.issue=3-4&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2009.09.007 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Aquifers; Sensitivity; Arsenic; Leakage; Thermodynamics; Geochemistry; Simulation; mineralogy; Lead; Trace elements; Reviews; downstream; Groundwater pollution; Geology; Carbon dioxide; Groundwater; Drinking water; Minerals; pH; Evaluation; Geohydrology; Trace Elements; Groundwater Pollution; Model Studies; Carbon Dioxide; USA DO - http://dx.doi.org/10.1016/j.chemgeo.2009.09.007 ER - TY - CPAPER T1 - Understanding (Super)Heavy Element Cross Sections T2 - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AN - 42293396; 5626463 JF - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AU - Gregorich, K AU - Chung, Y AU - Dragojevic, I AU - Dullmann, E AU - Dvorak, J AU - Eichler, R AU - Ellison, P AU - Folden III, C. AU - Garcia, M AU - Gates, J AU - Hoffman, D AU - Nelson, S AU - Nitsche, H AU - Pang, G AU - Schadel, M AU - Stavsetra, L AU - Sudowe, R AU - Turler, A AU - Loveland, W AU - Yakushev, A AU - Zielinski, P Y1 - 2009/11/29/ PY - 2009 DA - 2009 Nov 29 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42293396?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.atitle=Understanding+%28Super%29Heavy+Element+Cross+Sections&rft.au=Gregorich%2C+K%3BChung%2C+Y%3BDragojevic%2C+I%3BDullmann%2C+E%3BDvorak%2C+J%3BEichler%2C+R%3BEllison%2C+P%3BFolden+III%2C+C.%3BGarcia%2C+M%3BGates%2C+J%3BHoffman%2C+D%3BNelson%2C+S%3BNitsche%2C+H%3BPang%2C+G%3BSchadel%2C+M%3BStavsetra%2C+L%3BSudowe%2C+R%3BTurler%2C+A%3BLoveland%2C+W%3BYakushev%2C+A%3BZielinski%2C+P&rft.aulast=Gregorich&rft.aufirst=K&rft.date=2009-11-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://apsorc2009.berkeley.edu/assets/docs/LR_APSORC_ABSTRACT_BOOK_FIN AL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Systematic Studies of Nuclear Fusion Reactions at Low Excitation Energies with 208pb Targets and Pairs of Projectiles Differing by Two Neutrons T2 - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AN - 42293191; 5626487 JF - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AU - Dragojevic, I AU - Gregorich, K AU - Dullmann, Ch AU - Ellison, P AU - Folden III, C. AU - Garcia, M AU - Gates, J AU - Nelson, S AU - Stavsetra, L AU - Sudowe, R AU - Nitsche, H Y1 - 2009/11/29/ PY - 2009 DA - 2009 Nov 29 KW - Nuclear energy KW - Neutrons KW - Energy KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42293191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.atitle=Systematic+Studies+of+Nuclear+Fusion+Reactions+at+Low+Excitation+Energies+with+208pb+Targets+and+Pairs+of+Projectiles+Differing+by+Two+Neutrons&rft.au=Dragojevic%2C+I%3BGregorich%2C+K%3BDullmann%2C+Ch%3BEllison%2C+P%3BFolden+III%2C+C.%3BGarcia%2C+M%3BGates%2C+J%3BNelson%2C+S%3BStavsetra%2C+L%3BSudowe%2C+R%3BNitsche%2C+H&rft.aulast=Dragojevic&rft.aufirst=I&rft.date=2009-10-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=62nd+Gaseous+Electronics+Conference&rft.issn=&rft_id=info:doi/ L2 - http://apsorc2009.berkeley.edu/assets/docs/LR_APSORC_ABSTRACT_BOOK_FIN AL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Isomer Spectroscopy of the Heaviest Elements T2 - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AN - 42291282; 5626480 JF - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AU - Clark, R AU - Gregorich, K AU - Jeppesen, H AU - Afansjev, A AU - Allmond, J AU - Beausang, C AU - Cromaz, M AU - Deleplanque, M AU - Fallon, P AU - Greene, J AU - Gros, S AU - Kaji, D AU - Lee, I AU - Liu, H AU - Macchiavelli, A AU - Morimoto, K AU - Nelson, S AU - Nitsche, H AU - Pavan, J AU - Stavsetra, L AU - Stephens, F AU - Watanabe, H AU - Wiedeking, M AU - Wyss, R AU - Xu, F. Y1 - 2009/11/29/ PY - 2009 DA - 2009 Nov 29 KW - Spectroscopy KW - Isomers KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42291282?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.atitle=Isomer+Spectroscopy+of+the+Heaviest+Elements&rft.au=Clark%2C+R%3BGregorich%2C+K%3BJeppesen%2C+H%3BAfansjev%2C+A%3BAllmond%2C+J%3BBeausang%2C+C%3BCromaz%2C+M%3BDeleplanque%2C+M%3BFallon%2C+P%3BGreene%2C+J%3BGros%2C+S%3BKaji%2C+D%3BLee%2C+I%3BLiu%2C+H%3BMacchiavelli%2C+A%3BMorimoto%2C+K%3BNelson%2C+S%3BNitsche%2C+H%3BPavan%2C+J%3BStavsetra%2C+L%3BStephens%2C+F%3BWatanabe%2C+H%3BWiedeking%2C+M%3BWyss%2C+R%3BXu%2C+F.&rft.aulast=Clark&rft.aufirst=R&rft.date=2009-11-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://apsorc2009.berkeley.edu/assets/docs/LR_APSORC_ABSTRACT_BOOK_FIN AL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Reaction of Plutonium(Vi) with Manganese-Substituted Goethite T2 - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AN - 42287123; 5626426 JF - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AU - Hu, Y. AU - Schwaiger, L AU - Cristiano, E AU - Nitsche, H Y1 - 2009/11/29/ PY - 2009 DA - 2009 Nov 29 KW - Goethite KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42287123?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.atitle=Reaction+of+Plutonium%28Vi%29+with+Manganese-Substituted+Goethite&rft.au=Hu%2C+Y.%3BSchwaiger%2C+L%3BCristiano%2C+E%3BNitsche%2C+H&rft.aulast=Hu&rft.aufirst=Y.&rft.date=2009-11-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://apsorc2009.berkeley.edu/assets/docs/LR_APSORC_ABSTRACT_BOOK_FIN AL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Role of the Periodic Table in the Discovery of New Elements T2 - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AN - 42284935; 5626407 JF - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AU - Hoffman, Darleane Y1 - 2009/11/29/ PY - 2009 DA - 2009 Nov 29 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42284935?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.atitle=Role+of+the+Periodic+Table+in+the+Discovery+of+New+Elements&rft.au=Hoffman%2C+Darleane&rft.aulast=Hoffman&rft.aufirst=Darleane&rft.date=2009-11-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://apsorc2009.berkeley.edu/assets/docs/LR_APSORC_ABSTRACT_BOOK_FIN AL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Comparison of Iupac k0 Values and Neutron Cross Sections to Determine a Self Consistent Set of Data for Neutron Activation Analysis T2 - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AN - 42284489; 5626517 JF - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AU - Firestone, R AU - Revay, Zs Y1 - 2009/11/29/ PY - 2009 DA - 2009 Nov 29 KW - Neutron activation analysis KW - Data processing KW - Self KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42284489?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.atitle=Comparison+of+Iupac+k0+Values+and+Neutron+Cross+Sections+to+Determine+a+Self+Consistent+Set+of+Data+for+Neutron+Activation+Analysis&rft.au=Firestone%2C+R%3BRevay%2C+Zs&rft.aulast=Firestone&rft.aufirst=R&rft.date=2009-11-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://apsorc2009.berkeley.edu/assets/docs/LR_APSORC_ABSTRACT_BOOK_FIN AL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Nuclear and Radiochemistry Education in the U.S.A.: Crisis or Turning Point? T2 - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AN - 42282419; 5626523 JF - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AU - Nitsche, Heino Y1 - 2009/11/29/ PY - 2009 DA - 2009 Nov 29 KW - Education KW - Radiochemistry KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42282419?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Segmented+P-Type+Point+Contact+Germanium+Detector&rft.au=Amman%2C+M%3BLuke%2C+P%3BChan%2C+Y%3BLesko%2C+K&rft.aulast=Amman&rft.aufirst=M&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://apsorc2009.berkeley.edu/assets/docs/LR_APSORC_ABSTRACT_BOOK_FIN AL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Electrospray and Gas-Phase Behavior of Cerium Phosphomolybdates: A Prelude to Plutonium Chemistry T2 - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AN - 42282401; 5626450 JF - Fourth Asia-Pacific Symposium on Radiochemistry (APSORC 2009) AU - Bray, Travis AU - Copping, Roy AU - Shuh, David AU - Gibson, John Y1 - 2009/11/29/ PY - 2009 DA - 2009 Nov 29 KW - Cerium KW - Plutonium KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42282401?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.atitle=Electrospray+and+Gas-Phase+Behavior+of+Cerium+Phosphomolybdates%3A+A+Prelude+to+Plutonium+Chemistry&rft.au=Bray%2C+Travis%3BCopping%2C+Roy%3BShuh%2C+David%3BGibson%2C+John&rft.aulast=Bray&rft.aufirst=Travis&rft.date=2009-11-29&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://apsorc2009.berkeley.edu/assets/docs/LR_APSORC_ABSTRACT_BOOK_FIN AL.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - A rapid and inexpensive labeling method for microarray gene expression analysis AN - 746306067; 13104011 AB - Global gene expression profiling by DNA microarrays is an invaluable tool in biological research. However, existing labeling methods are time consuming and costly and therefore often limit the scale of microarray experiments and sample throughput. Here we introduce a new, fast, inexpensive method for direct random-primed fluorescent labeling of eukaryotic cDNA for gene expression analysis and compare the results obtained on the NimbleGen microarray platform with two other widely-used labeling methods, namely the NimbleGen-recommended double-stranded cDNA protocol and the indirect (aminoallyl) method. Two total RNA samples were labeled with each method and hybridized to NimbleGen expression arrays. Although all methods tested here provided similar global results and biological conclusions, the new direct random-primed cDNA labeling method provided slightly better correlation between replicates compared to the other methods and thus increased ability to find statistically significant differentially expressed genes. The new direct random-primed cDNA labeling method introduced here is suitable for gene expression microarrays and provides a rapid, inexpensive alternative to existing methods. Using NimbleGen microarrays, the method produced excellent results comparable to those obtained with other methods. However, the simplicity and cost-effectiveness of the new method allows for increased sample throughput in microarray experiments and makes the process amenable to automation with a relatively simple liquid handling system. JF - BMC Biotechnology AU - Ouellet, Mario AU - Adams, Paul D AU - Keasling, Jay D AU - Mukhopadhyay, Aindrila AD - The Joint Bioenergy Institute, Lawrence Berkeley National Laboratory, Emeryville, USA Y1 - 2009/11/25/ PY - 2009 DA - 2009 Nov 25 SP - 97 PB - BioMed Central Ltd., Middlesex House London W1T 4LB UK VL - 9 KW - Biotechnology and Bioengineering Abstracts KW - Gene expression KW - RNA KW - Statistical analysis KW - Automation KW - DNA microarrays KW - W 30910:Imaging UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/746306067?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=BMC+Biotechnology&rft.atitle=A+rapid+and+inexpensive+labeling+method+for+microarray+gene+expression+analysis&rft.au=Ouellet%2C+Mario%3BAdams%2C+Paul+D%3BKeasling%2C+Jay+D%3BMukhopadhyay%2C+Aindrila&rft.aulast=Ouellet&rft.aufirst=Mario&rft.date=2009-11-25&rft.volume=9&rft.issue=&rft.spage=97&rft.isbn=&rft.btitle=&rft.title=BMC+Biotechnology&rft.issn=1472-6750&rft_id=info:doi/10.1186%2F1472-6750-9-97 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-07-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Gene expression; RNA; Statistical analysis; Automation; DNA microarrays DO - http://dx.doi.org/10.1186/1472-6750-9-97 ER - TY - JOUR T1 - Regional CO2 and latent heat surface fluxes in the Southern Great Plains: Measurements, modeling, and scaling AN - 21323065; 11913911 AB - Characterizing net ecosystem exchanges (NEE) of CO2 and sensible and latent heat fluxes in heterogeneous landscapes is difficult, yet critical given expected changes in climate and land use. We report here a measurement and modeling study designed to improve our understanding of surface to atmosphere gas exchanges under very heterogeneous land cover in the mostly agricultural U.S. Southern Great Plains (SGP). We combined three years of site-level, eddy covariance measurements in several of the dominant land cover types with regional-scale climate data from the distributed Mesonet stations and Next Generation Weather Radar precipitation measurements to calibrate a land surface model of trace gas and energy exchanges (isotope-enabled land surface model (ISOLSM)). Yearly variations in vegetation cover distributions were estimated from Moderate Resolution Imaging Spectroradiometer normalized difference vegetation index and compared to regional and subregional vegetation cover type estimates from the U.S. Department of Agriculture census. We first applied ISOLSM at a 250 m spatial scale to account for vegetation cover type and leaf area variations that occur on hundred meter scales. Because of computational constraints, we developed a subsampling scheme within 10 km 'macrocells' to perform these high-resolution simulations. We estimate that the Atmospheric Radiation Measurement Climate Research Facility SGP region net CO2 exchange with the local atmosphere was -240, -340, and -270 gC m-2 yr-1 (positive toward the atmosphere) in 2003, 2004, and 2005, respectively, with large seasonal variations. We also performed simulations using two scaling approaches at resolutions of 10, 30, 60, and 90 km. The scaling approach applied in current land surface models led to regional NEE biases of up to 50 and 20% in weekly and annual estimates, respectively. An important factor in causing these biases was the complex leaf area index (LAI) distribution within cover types. Biases in predicted weekly average regional latent heat fluxes were smaller than for NEE, but larger than for either ecosystem respiration or assimilation alone. However, spatial and diurnal variations of hundreds of W m-2 in latent heat fluxes were common. We conclude that, in this heterogeneous system, characterizing vegetation cover type and LAI at the scale of spatial variation are necessary for accurate estimates of bottom-up, regional NEE and surface energy fluxes. JF - Journal of Geophysical Research. G. Biogeosciences AU - Riley, W J AU - Biraud, S C AU - Torn AU - Fischer, M L AU - Billesbach, D P AU - Berry, JA AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA Y1 - 2009/11/24/ PY - 2009 DA - 2009 Nov 24 PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 USA VL - 114 IS - G04 SN - 0148-0227, 0148-0227 KW - Ecology Abstracts; Pollution Abstracts; Sustainability Science Abstracts; Meteorological & Geoastrophysical Abstracts KW - Atmospheric pollution models KW - Rainfall KW - Climatic changes KW - Data assimilation KW - Climate and vegetation KW - Surface fluxes KW - Vegetation index KW - Seasonal variations KW - Topography KW - census KW - Weather KW - Diurnal variations KW - Leaf area KW - Heat flux KW - Landscape KW - agriculture KW - Carbon cycle KW - Vegetation KW - Land use KW - scaling KW - Numerical simulations KW - Heat KW - vegetation cover KW - Sensible and latent heat KW - Carbon dioxide KW - Scaling KW - Agriculture KW - Respiration KW - Latent heat KW - Atmosphere KW - Models KW - spatial distribution KW - Weather radar KW - Eddy covariance KW - plains KW - Climate and land use KW - Climate models KW - Atmospheric radiation measurements KW - Climate KW - Simulation KW - USA KW - Radiation measurements KW - Precipitation measurements KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - D 04040:Ecosystem and Ecology Studies KW - M2 551.58:Climatology (551.58) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21323065?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.atitle=Regional+CO2+and+latent+heat+surface+fluxes+in+the+Southern+Great+Plains%3A+Measurements%2C+modeling%2C+and+scaling&rft.au=Riley%2C+W+J%3BBiraud%2C+S+C%3BTorn%3BFischer%2C+M+L%3BBillesbach%2C+D+P%3BBerry%2C+JA&rft.aulast=Riley&rft.aufirst=W&rft.date=2009-11-24&rft.volume=114&rft.issue=G04&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Geophysical+Research.+G.+Biogeosciences&rft.issn=01480227&rft_id=info:doi/10.1029%2F2009JG001003 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-03-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Leaf area; Heat; Climate; Carbon cycle; Vegetation; Carbon dioxide; Atmosphere; Scaling; Models; Agriculture; Diurnal variations; Heat flux; Climate models; Atmospheric pollution models; Atmospheric radiation measurements; Latent heat; Data assimilation; Climate and vegetation; Weather radar; Eddy covariance; Numerical simulations; Surface fluxes; Sensible and latent heat; Seasonal variations; Climate and land use; Vegetation index; Precipitation measurements; Topography; census; Weather; Respiration; Rainfall; Landscape; Climatic changes; agriculture; Simulation; Land use; scaling; spatial distribution; vegetation cover; Radiation measurements; plains; USA DO - http://dx.doi.org/10.1029/2009JG001003 ER - TY - CPAPER T1 - Distributed flames and Damk"ohler "small-scale turbulence" in type Ia supernovae T2 - 62nd Annual Meeting of the APS Division of Fluid Dynamics (DFD 2009) AN - 42259338; 5606477 JF - 62nd Annual Meeting of the APS Division of Fluid Dynamics (DFD 2009) AU - Aspden, Andrew AU - Bell, John AU - Woosley, Stan Y1 - 2009/11/22/ PY - 2009 DA - 2009 Nov 22 KW - Turbulence KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42259338?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Pulse+Shape+Analysis+Method+for+Estimating+Charge+Mobility+in+Large+Planar+HPGe+Double-Sided+Strip+Detectors&rft.au=Chivers%2C+D%3BMihailescu%2C+L%3BPrussin%2C+S%3BVetter%2C+K&rft.aulast=Chivers&rft.aufirst=D&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://flux.aps.org/meetings/YR09/DFD09/all_DFD09.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Electrode-Based Approach for Monitoring In Situ Microbial Activity During Subsurface Bioremediation AN - 754542229; 13268440 AB - Current production by microorganisms colonizing subsurface electrodes and its relationship to substrate availability and microbial activity was evaluated in an aquifer undergoing bioremediation. Borehole graphite anodes were installed downgradient from a region of acetate injection designed to stimulate bioreduction of U(VI); cathodes consisted of graphite electrodes embedded at the ground surface. Significant increases in current density (<=50 mA/m2) tracked delivery of acetate to the electrodes, dropping rapidly when acetate inputs were discontinued. An upgradient control electrode not exposed to acetate produced low, steady currents (<=0.2 mA/m2). Elevated current was strongly correlated with uranium removal but minimal correlation existed with elevated Fe(II). Confocal laser scanning microscopy of electrodes revealed firmly attached biofilms, and analysis of 16S rRNA gene sequences indicated the electrode surfaces were dominated (67-80%) by Geobacter species. This is the first demonstration that electrodes can produce readily detectable currents despite long-range (6 m) separation of anode and cathode, and these results suggest that oxidation of acetate coupled to electron transfer to electrodes by Geobacter species was the primary source of current. Thus it is expected that current production may serve as an effective proxy for monitoring in situ microbial activity in a variety of subsurface anoxic environments. JF - Environmental Science & Technology AU - Williams, Kenneth H AU - Nevin, Kelly P AU - Franks, Ashley AU - Englert, Andreas AU - Long, Philip E AU - Lovley, Derek R AD - Lawrence Berkeley National Laboratory, Berkeley, California 94720, Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 01003, Hydrogeology Department, Ruhr University, Bochum, Germany, and Pacific Northwest National Laboratory, Richland, Washington 99352 Y1 - 2009/11/18/ PY - 2009 DA - 2009 Nov 18 SP - 47 EP - 54 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 44 IS - 1 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biotechnology and Bioengineering Abstracts; Pollution Abstracts; Environment Abstracts KW - Aquifers KW - Cathodes KW - Bioremediation KW - Graphite KW - Geobacter KW - Electron transfer KW - Uranium KW - Biofilms KW - Microbial activity KW - Acetic acid KW - boreholes KW - Microscopy KW - Confocal microscopy KW - Anodes KW - Electrodes KW - Oxidation KW - Microorganisms KW - rRNA 16S KW - P 2000:FRESHWATER POLLUTION KW - A 01450:Environmental Pollution & Waste Treatment KW - ENA 21:Wildlife KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754542229?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Electrode-Based+Approach+for+Monitoring+In+Situ+Microbial+Activity+During+Subsurface+Bioremediation&rft.au=Williams%2C+Kenneth+H%3BNevin%2C+Kelly+P%3BFranks%2C+Ashley%3BEnglert%2C+Andreas%3BLong%2C+Philip+E%3BLovley%2C+Derek+R&rft.aulast=Williams&rft.aufirst=Kenneth&rft.date=2009-11-18&rft.volume=44&rft.issue=1&rft.spage=47&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9017464 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Cathodes; Aquifers; Graphite; Bioremediation; Electron transfer; Acetic acid; Uranium; Oxidation; Electrodes; Anodes; Confocal microscopy; Microorganisms; Biofilms; rRNA 16S; boreholes; Microscopy; Microbial activity; Geobacter DO - http://dx.doi.org/10.1021/es9017464 ER - TY - CPAPER T1 - A Design Methodology for Domain-Optimized Power-Efficient Supercomputing T2 - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AN - 42068534; 5501075 JF - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AU - Mohiyuddin, Marghoob AU - Murphy, Mark AU - Oliker, Leonid AU - Shalf, John AU - Wawrzynek, John AU - Williams, Samuel Y1 - 2009/11/14/ PY - 2009 DA - 2009 Nov 14 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42068534?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=21st+International+Conference+for+High+Performance+Computing%2C+Networking%2C+Storage+and+Analysis+%28SC+09%29&rft.atitle=A+Design+Methodology+for+Domain-Optimized+Power-Efficient+Supercomputing&rft.au=Mohiyuddin%2C+Marghoob%3BMurphy%2C+Mark%3BOliker%2C+Leonid%3BShalf%2C+John%3BWawrzynek%2C+John%3BWilliams%2C+Samuel&rft.aulast=Mohiyuddin&rft.aufirst=Isabel&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://scyourway.nacse.org/conference/selection LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Memory-Efficient Optimization of Gyrokinetic Particle-to-Grid Interpolation for Multicore Processors T2 - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AN - 42038546; 5500854 JF - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AU - Madduri, Kamesh AU - Williams, Samuel AU - Ethier, Stephane AU - Oliker, Leonid AU - Shalf, John AU - Strohmaier, Erich AU - Yelick, Katherine Y1 - 2009/11/14/ PY - 2009 DA - 2009 Nov 14 KW - Particulates KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42038546?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=21st+International+Conference+for+High+Performance+Computing%2C+Networking%2C+Storage+and+Analysis+%28SC+09%29&rft.atitle=Memory-Efficient+Optimization+of+Gyrokinetic+Particle-to-Grid+Interpolation+for+Multicore+Processors&rft.au=Madduri%2C+Kamesh%3BWilliams%2C+Samuel%3BEthier%2C+Stephane%3BOliker%2C+Leonid%3BShalf%2C+John%3BStrohmaier%2C+Erich%3BYelick%2C+Katherine&rft.aulast=Madduri&rft.aufirst=Kamesh&rft.date=2009-11-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=21st+International+Conference+for+High+Performance+Computing%2C+Networking%2C+Storage+and+Analysis+%28SC+09%29&rft.issn=&rft_id=info:doi/ L2 - http://scyourway.nacse.org/conference/selection LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Energy Efficient High Performance Computing Working Group T2 - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AN - 42036978; 5501037 JF - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AU - Tschudi, William AU - Patterson, Michael Y1 - 2009/11/14/ PY - 2009 DA - 2009 Nov 14 KW - Energy efficiency KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42036978?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=21st+International+Conference+for+High+Performance+Computing%2C+Networking%2C+Storage+and+Analysis+%28SC+09%29&rft.atitle=Energy+Efficient+High+Performance+Computing+Working+Group&rft.au=Tschudi%2C+William%3BPatterson%2C+Michael&rft.aulast=Tschudi&rft.aufirst=William&rft.date=2009-11-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=21st+International+Conference+for+High+Performance+Computing%2C+Networking%2C+Storage+and+Analysis+%28SC+09%29&rft.issn=&rft_id=info:doi/ L2 - http://scyourway.nacse.org/conference/selection LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Green Flash: Exascale Computing for Ultra-High Resolution Climate Modeling T2 - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AN - 42035023; 5501031 JF - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AU - Wehner, Michael Y1 - 2009/11/14/ PY - 2009 DA - 2009 Nov 14 KW - Climate KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42035023?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=21st+International+Conference+for+High+Performance+Computing%2C+Networking%2C+Storage+and+Analysis+%28SC+09%29&rft.atitle=Green+Flash%3A+Exascale+Computing+for+Ultra-High+Resolution+Climate+Modeling&rft.au=Wehner%2C+Michael&rft.aulast=Wehner&rft.aufirst=Michael&rft.date=2009-11-14&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=21st+International+Conference+for+High+Performance+Computing%2C+Networking%2C+Storage+and+Analysis+%28SC+09%29&rft.issn=&rft_id=info:doi/ L2 - http://scyourway.nacse.org/conference/selection LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Energy Efficient Data Centers for HPC, How Lean and Green do we need to be? T2 - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AN - 42034779; 5501024 JF - 21st International Conference for High Performance Computing, Networking, Storage and Analysis (SC 09) AU - Tschudi, William AU - Reese, Phil AU - Seger, David AU - Tufo, Henry Y1 - 2009/11/14/ PY - 2009 DA - 2009 Nov 14 KW - Energy efficiency KW - Data processing KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42034779?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Improving+Optical+Monte+Carlo+Simulations+with+Measured+Optical+Reflectance&rft.au=Janecek%2C+M%3BMoses%2C+W&rft.aulast=Janecek&rft.aufirst=M&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://scyourway.nacse.org/conference/selection LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Physical properties of hydrate-bearing sediments AN - 911680409; 545583-3 AB - Methane gas hydrates, crystalline inclusion compounds formed from methane and water, are found in marine continental margin and permafrost sediments worldwide. This article reviews the current understanding of phenomena involved in gas hydrate formation and the physical properties of hydrate-bearing sediments. Formation phenomena include pore-scale habit, solubility, spatial variability, and host sediment aggregate properties. Physical properties include thermal properties, permeability, electrical conductivity and permittivity, small-strain elastic P and S wave velocities, shear strength, and volume changes resulting from hydrate dissociation. The magnitudes and interdependencies of these properties are critically important for predicting and quantifying macroscale responses of hydrate-bearing sediments to changes in mechanical, thermal, or chemical boundary conditions. These predictions are vital for mitigating borehole, local, and regional slope stability hazards; optimizing recovery techniques for extracting methane from hydrate-bearing sediments or sequestering carbon dioxide in gas hydrate; and evaluating the role of gas hydrate in the global carbon cycle. JF - Reviews of Geophysics AU - Waite, W F AU - Santamarina, J C AU - Cortes, D D AU - Dugan, B AU - Espinoza, D N AU - Germaine, J AU - Jang, J AU - Jung, J W AU - Kneafsey, T J AU - Shin, H AU - Soga, K AU - Winters, W J AU - Yun, T S Y1 - 2009/11/12/ PY - 2009 DA - 2009 Nov 12 SP - RG4003(1 EP - 38) PB - American Geophysical Union, Washington, DC VL - 47 IS - 4 SN - 8755-1209, 8755-1209 KW - electrical conductivity KW - permafrost KW - methane KW - gas hydrates KW - thermal properties KW - aliphatic hydrocarbons KW - alkanes KW - physical properties KW - organic compounds KW - marine sediments KW - sediments KW - hydrocarbons KW - permeability KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/911680409?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefinprocess&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+of+Geophysics&rft.atitle=Physical+properties+of+hydrate-bearing+sediments&rft.au=Waite%2C+W+F%3BSantamarina%2C+J+C%3BCortes%2C+D+D%3BDugan%2C+B%3BEspinoza%2C+D+N%3BGermaine%2C+J%3BJang%2C+J%3BJung%2C+J+W%3BKneafsey%2C+T+J%3BShin%2C+H%3BSoga%2C+K%3BWinters%2C+W+J%3BYun%2C+T+S&rft.aulast=Waite&rft.aufirst=W&rft.date=2009-11-12&rft.volume=47&rft.issue=4&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Reviews+of+Geophysics&rft.issn=87551209&rft_id=info:doi/10.1029%2F2008RG000279 L2 - http://www.agu.org/journals/rg/ LA - English DB - GeoRef N1 - Copyright - GeoRef in Process, Copyright 2012, American Geosciences Institute. After editing and indexing, this record will be added to Georef. Reference includes data supplied by, and/or abstract, Copyright, American Geophysical Union, Washington, DC, United States N1 - Number of references - 326 N1 - PubXState - DC N1 - Document feature - illus. incl. 10 tables N1 - Last updated - 2012-07-20 N1 - SubjectsTermNotLitGenreText - aliphatic hydrocarbons; alkanes; electrical conductivity; gas hydrates; hydrocarbons; marine sediments; methane; organic compounds; permafrost; permeability; physical properties; sediments; thermal properties DO - http://dx.doi.org/10.1029/2008RG000279 ER - TY - CPAPER T1 - Advancing Transmission Electron Microscopy at the Ncem: Prospects for the Detection of Single Light Atoms in Soft and Hard Materials with a Team Microscope T2 - 2009 AIChE Annual Meeting (AIChE 2009) AN - 42176015; 5569831 JF - 2009 AIChE Annual Meeting (AIChE 2009) AU - Alloyeau, Damien AU - Kisielowski, Christian Y1 - 2009/11/08/ PY - 2009 DA - 2009 Nov 08 KW - Transmission electron microscopy KW - Microscopes KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42176015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+AIChE+Annual+Meeting+%28AIChE+2009%29&rft.atitle=Advancing+Transmission+Electron+Microscopy+at+the+Ncem%3A+Prospects+for+the+Detection+of+Single+Light+Atoms+in+Soft+and+Hard+Materials+with+a+Team+Microscope&rft.au=Alloyeau%2C+Damien%3BKisielowski%2C+Christian&rft.aulast=Alloyeau&rft.aufirst=Damien&rft.date=2009-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+AIChE+Annual+Meeting+%28AIChE+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://aiche.confex.com/aiche/2009/webprogram/meeting.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Rapid and sensitive gas chromatography-ion-trap tandem mass spectrometry method for the determination of tobacco-specific N-nitrosamines in secondhand smoke AN - 21213688; 11176677 AB - Tobacco-specific nitrosamines (TSNAs) are some of the most potent carcinogens in tobacco and cigarette smoke. Accurate quantification of these chemicals is needed to help assess public health risks. We developed and validated a specific and sensitive method to measure four TSNAs adsorbed to model surfaces and secondhand smoke (SHS) particles using gas chromatography-ion-trap tandem mass spectrometry. In an 18-m super(3) room-sized chamber, a smoking machine generated realistic concentrations of SHS that were actively sampled on Teflon-coated fiber glass (TCFG) filters, and passively sampled on cellulose substrates. A simple solid-liquid extraction protocol using methanol as solvent was successfully applied to both substrates with recoveries ranging from 85 to 115%. For each TSNA, tandem MS parameters were optimized and the major fragmentation pathways were elucidated. The method showed excellent performance, with a linear dynamic range from 2 to 1000 ng mL super(-1), low detection limits (S/N > 3) of 30-300 pg mL super(-1) and precision with experimental errors below 10% for all compounds. Moreover, no interfering peaks were observed, indicating a high selectivity of MS/MS without the need for a sample clean-up step. This method provides a suitable analytical tool to detect and quantify traces of TSNA in indoor environments polluted with SHS. JF - Journal of Chromatography A AU - Sleiman, Mohamad AU - Maddalena, Randy L AU - Gundel, Lara A AU - Destaillats, Hugo AD - Indoor Environment Department, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 70-108B, Berkeley, CA 94720, USA, MSleiman@lbl.gov Y1 - 2009/11/06/ PY - 2009 DA - 2009 Nov 06 SP - 7899 EP - 7905 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands VL - 1216 IS - 45 SN - 0021-9673, 0021-9673 KW - ASFA 3: Aquatic Pollution & Environmental Quality; Water Resources Abstracts; Aqualine Abstracts; Toxicology Abstracts KW - Indoor air KW - Tobacco KW - Secondhand smoke KW - Nitrosamines KW - Ion-trap KW - Gas chromatography KW - Tandem mass spectrometry KW - Mass Spectrometry KW - Chromatographic techniques KW - Cellulose KW - Methanol KW - Cigarette smoke KW - N-nitrosamines KW - Fibre glass KW - Carcinogens KW - Mass spectroscopy KW - Public health KW - Smoking KW - Public Health KW - Substrate preferences KW - Substrates KW - Pollution detection KW - Solvents KW - Filters KW - Smoke KW - Fibers KW - Detection Limits KW - Analytical Methods KW - Precision KW - Pollution control KW - SW 5010:Network design KW - X 24380:Social Poisons & Drug Abuse KW - Q5 08502:Methods and instruments KW - AQ 00002:Water Quality UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21213688?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Chromatography+A&rft.atitle=Rapid+and+sensitive+gas+chromatography-ion-trap+tandem+mass+spectrometry+method+for+the+determination+of+tobacco-specific+N-nitrosamines+in+secondhand+smoke&rft.au=Sleiman%2C+Mohamad%3BMaddalena%2C+Randy+L%3BGundel%2C+Lara+A%3BDestaillats%2C+Hugo&rft.aulast=Sleiman&rft.aufirst=Mohamad&rft.date=2009-11-06&rft.volume=1216&rft.issue=45&rft.spage=7899&rft.isbn=&rft.btitle=&rft.title=Journal+of+Chromatography+A&rft.issn=00219673&rft_id=info:doi/10.1016%2Fj.chroma.2009.09.020 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Smoke; Pollution detection; Substrate preferences; Chromatographic techniques; Solvents; Fibre glass; Mass spectroscopy; Public health; Pollution control; Methanol; Cellulose; N-nitrosamines; Cigarette smoke; Carcinogens; Filters; Nitrosamines; Fibers; Smoking; Tobacco; Mass Spectrometry; Public Health; Analytical Methods; Detection Limits; Precision; Substrates DO - http://dx.doi.org/10.1016/j.chroma.2009.09.020 ER - TY - CPAPER T1 - Focusing and neutralization of intense ion beams with a metallic funnel T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42112321; 5532379 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Henestroza, E AU - Bieniosek, F AU - Hernandez, F Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Neutralization KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42112321?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Focusing+and+neutralization+of+intense+ion+beams+with+a+metallic+funnel&rft.au=Henestroza%2C+E%3BBieniosek%2C+F%3BHernandez%2C+F&rft.aulast=Henestroza&rft.aufirst=E&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Lithium alumino-silicate ion source development T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42110441; 5530839 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Roy, Prabir AU - Seidl, Peter AU - Kwan, Joe AU - Greenway, Wayne AU - Waldron, William AU - Wu, James AU - Mazaheri, Kavous Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Lithium KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42110441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Lithium+alumino-silicate+ion+source+development&rft.au=Roy%2C+Prabir%3BSeidl%2C+Peter%3BKwan%2C+Joe%3BGreenway%2C+Wayne%3BWaldron%2C+William%3BWu%2C+James%3BMazaheri%2C+Kavous&rft.aulast=Roy&rft.aufirst=Prabir&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Laser Wakefield Acceleration with Shaped Laser Modes T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42103069; 5531938 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Cormier-Michel, Estelle AU - Esarey, Eric AU - Geddes, Cameron AU - Schroeder, Carl AU - Bruhwiler, David AU - Cowan, Ben AU - Paul, Kevin AU - Leemans, Wim Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Lasers KW - Acceleration KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42103069?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Laser+Wakefield+Acceleration+with+Shaped+Laser+Modes&rft.au=Cormier-Michel%2C+Estelle%3BEsarey%2C+Eric%3BGeddes%2C+Cameron%3BSchroeder%2C+Carl%3BBruhwiler%2C+David%3BCowan%2C+Ben%3BPaul%2C+Kevin%3BLeemans%2C+Wim&rft.aulast=Cormier-Michel&rft.aufirst=Estelle&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Thermal simulations of the NDCX-I target experiments T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42101335; 5531703 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Henestroza, E AU - Bienioske, F AU - Ni, P. AU - More, R AU - Barnard, J Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Simulation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42101335?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Thermal+simulations+of+the+NDCX-I+target+experiments&rft.au=Henestroza%2C+E%3BBienioske%2C+F%3BNi%2C+P.%3BMore%2C+R%3BBarnard%2C+J&rft.aulast=Henestroza&rft.aufirst=E&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Optimized Ion Energy Profiles for Heavy Ion Direct Drive Targets T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42101287; 5531701 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Hay, Michael AU - Barnard, John AU - Perkins, L AU - Logan, B Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Energy KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42101287?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Optimized+Ion+Energy+Profiles+for+Heavy+Ion+Direct+Drive+Targets&rft.au=Hay%2C+Michael%3BBarnard%2C+John%3BPerkins%2C+L%3BLogan%2C+B&rft.aulast=Hay&rft.aufirst=Michael&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Controlled electron injection in laser wakefield accelerators using axially tailored plasmas T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42100052; 5532139 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Gonsalves, Anthony Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Lasers KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42100052?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Controlled+electron+injection+in+laser+wakefield+accelerators+using+axially+tailored+plasmas&rft.au=Gonsalves%2C+Anthony&rft.aulast=Gonsalves&rft.aufirst=Anthony&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Results of the upgraded Neutralized Drift Compression Experiment T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42098889; 5531612 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Lidia, Steven AU - Bieniosek, F AU - Gilson, E AU - Roy, P AU - Ni, P. AU - Seidl, P AU - van den Bogert, K AU - Waldron, W Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Compression KW - Drift KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42098889?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Results+of+the+upgraded+Neutralized+Drift+Compression+Experiment&rft.au=Lidia%2C+Steven%3BBieniosek%2C+F%3BGilson%2C+E%3BRoy%2C+P%3BNi%2C+P.%3BSeidl%2C+P%3Bvan+den+Bogert%2C+K%3BWaldron%2C+W&rft.aulast=Lidia&rft.aufirst=Steven&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Simultaneous induction acceleration and bunching in the Neutralized Drift Compression Experiment T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42096849; 5531613 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Seidl, Peter AU - Bazouin, G AU - Lidia, S AU - Roy, P AU - Waldron, W Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Compression KW - Drift KW - Acceleration KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42096849?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Simultaneous+induction+acceleration+and+bunching+in+the+Neutralized+Drift+Compression+Experiment&rft.au=Seidl%2C+Peter%3BBazouin%2C+G%3BLidia%2C+S%3BRoy%2C+P%3BWaldron%2C+W&rft.aulast=Seidl&rft.aufirst=Peter&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Plasma wave phase velocity and density tapering in laser-plasma accelerators T2 - 51st Annual Meeting of the APS Division of Plasma Physics AN - 42096582; 5531519 JF - 51st Annual Meeting of the APS Division of Plasma Physics AU - Schroeder, Carl AU - Esarey, Eric AU - Leemans, Wim AU - Rittershofer, Wolf AU - Gruner, Florian AU - Shadwick, Bradley Y1 - 2009/11/02/ PY - 2009 DA - 2009 Nov 02 KW - Velocity KW - Waves KW - Wave phase KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42096582?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Plasma+wave+phase+velocity+and+density+tapering+in+laser-plasma+accelerators&rft.au=Schroeder%2C+Carl%3BEsarey%2C+Eric%3BLeemans%2C+Wim%3BRittershofer%2C+Wolf%3BGruner%2C+Florian%3BShadwick%2C+Bradley&rft.aulast=Schroeder&rft.aufirst=Carl&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/DPP09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Radiation carcinogenesis in context: how do irradiated tissues become tumors? AN - 734082736; 19820454 AB - It is clear from experimental studies that genotype is an important determinant of cancer susceptibility in general, and for radiation carcinogenesis specifically. It has become increasingly clear that genotype influences not only the ability to cope with DNA damage but also influences the cooperation of other tissues, like the vasculature and immune system, necessary for the establishment of cancer. Our experimental data and that of others suggest that the carcinogenic action of ionizing radiation (IR) can also be considered a two-compartment problem: while IR can alter genomic sequence as a result of DNA damage, it can also induce signals that alter multicellular interactions and phenotypes that underpin carcinogenesis. Rather than being accessory or secondary to genetic damage, we propose that such non-targeted radiation effects create the critical context that promotes cancer development. This review focuses on experimental studies that clearly define molecular mechanisms by which cell interactions contribute to cancer in different organs, and addresses how non-targeted radiation effects may similarly act though the microenvironment. The definition of non-targeted radiation effects and their dose dependence could modify the current paradigms for radiation risk assessment since radiation non-targeted effects, unlike DNA damage, are amenable to intervention. The implications of this perspective in terms of reducing cancer risk after exposure are discussed. JF - Health physics AU - Barcellos-Hoff, Mary Helen AU - Nguyen, David H AD - Life Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94705, USA. MHBarcellos-Hoff@nyumc.org Y1 - 2009/11// PY - 2009 DA - November 2009 SP - 446 EP - 457 VL - 97 IS - 5 KW - Transforming Growth Factor beta KW - 0 KW - Index Medicus KW - Radiobiology -- trends KW - Animals KW - Humans KW - Transforming Growth Factor beta -- metabolism KW - Neoplasms, Radiation-Induced -- pathology KW - Neoplasms, Radiation-Induced -- metabolism UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/734082736?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Health+physics&rft.atitle=Radiation+carcinogenesis+in+context%3A+how+do+irradiated+tissues+become+tumors%3F&rft.au=Barcellos-Hoff%2C+Mary+Helen%3BNguyen%2C+David+H&rft.aulast=Barcellos-Hoff&rft.aufirst=Mary&rft.date=2009-11-01&rft.volume=97&rft.issue=5&rft.spage=446&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=1538-5159&rft_id=info:doi/10.1097%2FHP.0b013e3181b08a10 LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-12-01 N1 - Date created - 2009-10-12 N1 - Date revised - 2017-02-17 N1 - SuppNotes - Cited By: Nat Rev Cancer. 2005 Nov;5(11):867-75 [16327765] Nat Rev Cancer. 2006 Jan;6(1):24-37 [16397525] Lung Cancer. 2006 Apr;52(1):1-7 [16499994] Mutat Res. 2006 May 11;597(1-2):119-32 [16438994] Nat Rev Cancer. 2006 Jul;6(7):506-20 [16794634] J Clin Invest. 2007 May;117(5):1305-13 [17415413] Radiat Res. 2007 Jul;168(1):1-64 [17722996] Cancer Res. 2007 Sep 15;67(18):8662-70 [17875706] Carcinogenesis. 2007 Sep;28(9):1965-70 [17615257] BMC Cancer. 2007;7:175 [17848193] Radiat Environ Biophys. 2008 Feb;47(1):33-8 [18026977] Radiat Res. 2008 Jul;170(1):23-32 [18582160] Cancer Res. 2008 Oct 15;68(20):8304-11 [18922902] DNA Repair (Amst). 2004 Aug-Sep;3(8-9):781-96 [15279764] DNA Repair (Amst). 2004 Aug-Sep;3(8-9):889-900 [15279774] DNA Repair (Amst). 2004 Aug-Sep;3(8-9):997-1007 [15279786] DNA Repair (Amst). 2004 Aug-Sep;3(8-9):1049-56 [15279792] Proc Natl Acad Sci U S A. 1975 Sep;72(9):3585-9 [1059147] Cancer Res. 1976 Apr;36(4):1367-74 [1260762] Cancer Res. 1979 Oct;39(10):4003-10 [113084] Cancer. 1984 Aug 15;54(4):612-5 [6744199] Cancer Res. 1985 Jul;45(7):2935-42 [3891078] N Engl J Med. 1986 Dec 25;315(26):1650-9 [3537791] Carcinogenesis. 1987 Jan;8(1):145-50 [3802388] J Cell Physiol. 1987 Jul;132(1):161-7 [2439521] Cancer Res. 1987 Oct 15;47(20):5316-22 [3115564] Carcinogenesis. 1989 Jun;10(6):973-80 [2541940] APMIS Suppl. 1989;10:1-56 [2692656] Radiat Res. 1990 Mar;121(3):242-7 [2315442] Genes Dev. 2006 Sep 15;20(18):2527-38 [16980582] Virchows Arch. 2006 May;448(5):584-90 [16525826] Cancer Res. 2006 Nov 15;66(22):10861-9 [17090522] Cancer Immunol Immunother. 2007 Mar;56(3):371-9 [16835788] Cancer Res. 2007 Feb 1;67(3):1246-53 [17283161] Cancer Res. 2000 Mar 1;60(5):1254-60 [10728684] J Mammary Gland Biol Neoplasia. 1998 Apr;3(2):165-75 [10819525] Med Confl Surviv. 2000 Jan-Mar;16(1):117-30; 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2010-007882 AB - There is growing awareness of the complexity of potential reaction pathways and the associated solid-phase transformations during the reduction of Fe (hydr)oxides, especially ferrihydrite. An important observation in static and advective-dominated systems is that microbially produced Fe(II) accelerates Ostwald ripening of ferrihydrite, thus promoting the formation of thermodynamically more stable ferric phases (lepidocrocite and goethite) and, at higher Fe(II) surface loadings, the precipitation of magnetite; high Fe(II) levels can also lead to green rust formation, and with high carbonate levels siderite may also be formed. This study expands this emerging conceptual model to a diffusion-dominated system that mimics an idealized micropore of a ferrihydrite-coated soil aggregate undergoing reduction. Using a novel diffusion cell, coupled with micro-x-ray fluorescence and absorption spectroscopies, we determined that diffusion-controlled gradients in Fe (super 2+) (sub (aq)) result in a complex array of spatially distributed secondary mineral phases. At the diffusive pore entrance, where Fe (super 2+) concentrations are highest, green rust and magnetite are the dominant secondary Fe (hydr)oxides (30 mol% Fe each). At intermediate distances from the inlet, green rust is not observed and the proportion of magnetite decreases from approximately 30 to 50%. At greater distances from the advective-diffusive boundary, goethite is the dominant phase, comprising between 40 and 95% of the Fe. In the presence of magnetite, lepidocrocite forms as a transient-intermediate phase during ferrihydrite-to-goethite conversion; in the absence of magnetite, conversion to goethite is more limited. These experimental observations, coupled with results of reactive transport modeling, confirm the conceptual model and illustrate the potential importance of diffusion-generated concentration gradients in dissolved Fe (super 2+) on the fate of ferrihydrite during reduction in structured soils. JF - Vadose Zone Journal AU - Tufano, Katharine J AU - Benner, Shawn G AU - Mayer, Klaus U AU - Marcus, Matthew A AU - Nico, Peter S AU - Fendorf, Scott Y1 - 2009/11// PY - 2009 DA - November 2009 SP - 1004 EP - 1012 PB - Soil Science Society of America, Madison, WI VL - 8 IS - 4 KW - scale factor KW - aggregate KW - iron oxides KW - goethite KW - piperazine KW - simulation KW - iron KW - absorption KW - X-ray absorption spectra KW - chemical reactions KW - transport KW - lepidocrocite KW - oxides KW - spectra KW - reduction KW - soils KW - diffusion KW - secondary minerals KW - advection KW - ferrihydrite KW - X-ray spectra KW - iron hydroxides KW - boundary conditions KW - ferrous iron KW - morphology KW - hydroxides KW - biogenic processes KW - heterogeneous materials KW - metals KW - EXAFS data KW - transformations KW - microorganisms KW - magnetite KW - 02C:Geochemistry of rocks, soils, and sediments KW - 25:Soils UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50106191?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=Aggregate-scale+heterogeneity+in+iron+%28hydr%29oxide+reductive+transformations&rft.au=Tufano%2C+Katharine+J%3BBenner%2C+Shawn+G%3BMayer%2C+Klaus+U%3BMarcus%2C+Matthew+A%3BNico%2C+Peter+S%3BFendorf%2C+Scott&rft.aulast=Tufano&rft.aufirst=Katharine&rft.date=2009-11-01&rft.volume=8&rft.issue=4&rft.spage=1004&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2008.0090 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 46 N1 - PubXState - WI N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - absorption; advection; aggregate; biogenic processes; boundary conditions; chemical reactions; diffusion; EXAFS data; ferrihydrite; ferrous iron; goethite; heterogeneous materials; hydroxides; iron; iron hydroxides; iron oxides; lepidocrocite; magnetite; metals; microorganisms; morphology; oxides; piperazine; reduction; scale factor; secondary minerals; simulation; soils; spectra; transformations; transport; X-ray absorption spectra; X-ray spectra DO - http://dx.doi.org/10.2136/vzj2008.0090 ER - TY - JOUR T1 - A quasilinear model for solute transport under unsaturated flow AN - 50105741; 2010-007884 AB - We developed an analytical solution for solute transport under steady-state, two-dimensional, unsaturated flow and transport conditions for the investigation of high-level radioactive waste disposal. The two-dimensional, unsaturated flow problem is treated using the quasilinear flow method for a system with homogeneous material properties. Dispersion is modeled as isotropic and is proportional to the effective hydraulic conductivity. This leads to a quasilinear form for the transport problem in terms of a scalar potential that is analogous to the Kirchhoff potential for quasilinear flow. The solutions for both flow and transport scalar potentials take the form of Fourier series. The particular solution given here is for two sources of flow, with one source containing a dissolved solute. The solution method may easily be extended, however, for any combination of flow and solute sources under steady-state conditions. The analytical results for multidimensional solute transport problems, which previously could only be solved numerically, also offer an additional way to benchmark numerical solutions. JF - Vadose Zone Journal AU - Houseworth, J E AU - Leem, J Y1 - 2009/11// PY - 2009 DA - November 2009 SP - 1031 EP - 1037 PB - Soil Science Society of America, Madison, WI VL - 8 IS - 4 KW - water KW - solute transport KW - soils KW - high-level waste KW - quasilinear flow KW - chemical dispersion KW - steady flow KW - drainage KW - unsaturated zone KW - mathematical models KW - equations KW - boundary conditions KW - two-dimensional models KW - radioactive waste KW - Kirchhoff potential KW - transport KW - movement KW - waste disposal KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50105741?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Vadose+Zone+Journal&rft.atitle=A+quasilinear+model+for+solute+transport+under+unsaturated+flow&rft.au=Houseworth%2C+J+E%3BLeem%2C+J&rft.aulast=Houseworth&rft.aufirst=J&rft.date=2009-11-01&rft.volume=8&rft.issue=4&rft.spage=1031&rft.isbn=&rft.btitle=&rft.title=Vadose+Zone+Journal&rft.issn=1539-1663&rft_id=info:doi/10.2136%2Fvzj2009.0022 L2 - http://www.vadosezonejournal.org LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Abstract, Copyright, Soil Science Society of America | Reference includes data from GeoScienceWorld, Alexandria, VA, United States N1 - Date revised - 2010-01-01 N1 - Number of references - 18 N1 - PubXState - WI N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Includes appendix N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boundary conditions; chemical dispersion; drainage; equations; high-level waste; Kirchhoff potential; mathematical models; movement; quasilinear flow; radioactive waste; soils; solute transport; steady flow; transport; two-dimensional models; unsaturated zone; waste disposal; water DO - http://dx.doi.org/10.2136/vzj2009.0022 ER - TY - JOUR T1 - A parallel second order adaptive mesh algorithm for incompressible flow in porous media AN - 50079270; 2010-026583 AB - In this paper, we present a second-order accurate adaptive algorithm for solving multi-phase, incompressible flow in porous media. We assume a multi-phase form of Darcy's law with relative permeabilities given as a function of the phase saturation. The remaining equations express conservation of mass for the fluid constituents. In this setting, the total velocity, defined to be the sum of the phase velocities, is divergence free. The basic integration method is based on a total-velocity splitting approach in which we solve a second-order elliptic pressure equation to obtain a total velocity. This total velocity is then used to recast component conservation equations as nonlinear hyperbolic equations. Our approach to adaptive refinement uses a nested hierarchy of logically rectangular grids with simultaneous refinement of the grids in both space and time. The integration algorithm on the grid hierarchy is a recursive procedure in which coarse grids are advanced in time, fine grids are advanced multiple steps to reach the same time as the coarse grids and the data at different levels are then synchronized. The single-grid algorithm is described briefly, but the emphasis here is on the time-stepping procedure for the adaptive hierarchy. Numerical examples are presented to demonstrate the algorithm's accuracy and convergence properties and to illustrate the behaviour of the method. JF - Philosophical Transactions - Royal Society. Mathematical, Physical and Engineering Sciences AU - Pau, George S H AU - Almgren, Ann S AU - Bell, John B AU - Lijewski, Michael J AU - Nikiforakis, N Y1 - 2009/11// PY - 2009 DA - November 2009 SP - 4633 EP - 4654 PB - Royal Society of London, London VL - 367 IS - 1907 SN - 1364-503X, 1364-503X KW - pressure KW - three-dimensional models KW - numerical analysis KW - Darcy's law KW - porous materials KW - fluid phase KW - elastic waves KW - equations KW - ground water KW - models KW - phase velocity KW - saturation KW - movement KW - mathematical methods KW - algorithms KW - 21:Hydrogeology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50079270?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Philosophical+Transactions+-+Royal+Society.+Mathematical%2C+Physical+and+Engineering+Sciences&rft.atitle=A+parallel+second+order+adaptive+mesh+algorithm+for+incompressible+flow+in+porous+media&rft.au=Pau%2C+George+S+H%3BAlmgren%2C+Ann+S%3BBell%2C+John+B%3BLijewski%2C+Michael+J%3BNikiforakis%2C+N&rft.aulast=Pau&rft.aufirst=George+S&rft.date=2009-11-01&rft.volume=367&rft.issue=1907&rft.spage=4633&rft.isbn=&rft.btitle=&rft.title=Philosophical+Transactions+-+Royal+Society.+Mathematical%2C+Physical+and+Engineering+Sciences&rft.issn=1364503X&rft_id=info:doi/10.1098%2Frsta.2009.0160 L2 - http://rsta.royalsocietypublishing.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Royal Society, London, United Kingdom N1 - Date revised - 2010-01-01 N1 - Number of references - 24 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2012-06-07 N1 - CODEN - PTRMAD N1 - SubjectsTermNotLitGenreText - algorithms; Darcy's law; elastic waves; equations; fluid phase; ground water; mathematical methods; models; movement; numerical analysis; phase velocity; porous materials; pressure; saturation; three-dimensional models DO - http://dx.doi.org/10.1098/rsta.2009.0160 ER - TY - CPAPER T1 - Cosmic Computing: Supporting the Science of the Planck Space Based Telescope T2 - 23rd Large Installation System Administration Conference (LISA '09) AN - 42036913; 5502361 JF - 23rd Large Installation System Administration Conference (LISA '09) AU - Canon, Shane Y1 - 2009/11/01/ PY - 2009 DA - 2009 Nov 01 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42036913?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=23rd+Large+Installation+System+Administration+Conference+%28LISA+%2709%29&rft.atitle=Cosmic+Computing%3A+Supporting+the+Science+of+the+Planck+Space+Based+Telescope&rft.au=Canon%2C+Shane&rft.aulast=Canon&rft.aufirst=Shane&rft.date=2009-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=23rd+Large+Installation+System+Administration+Conference+%28LISA+%2709%29&rft.issn=&rft_id=info:doi/ L2 - http://www.usenix.org/events/lisa09/ataglance.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Macroscopic relationship for preferential flow in the vadose zone: Theory and validation AN - 21340207; 11594650 AB - Preferential flow commonly observed in unsaturated soils allows rapid movement of solute from the ground surface or vadose zone to the groundwater, bypassing a significant volume of unsaturated soil and increasing the risk of groundwater contamination. A variety of evidence indicates that complex preferential flow patterns observed from fields are fractals. This paper discusses a macroscopic relationship for modeling preferential flow in the vadose zone. Conceptually, the flow domain can be divided into active and inactive regions. Flow occurs preferentially in the active region (characterized by fractals), and inactive region is simply bypassed. The portion of the active region was found to be a power function of saturation. The validity of this macroscopic relationship is demonstrated by Its consistency with field observations and the related numerical experiments. JF - Science in China Series E (Technological Sciences) AU - Liu, Huihai AU - Zhang, Renduo AD - Earth Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 947200, USA Y1 - 2009/11// PY - 2009 DA - Nov 2009 SP - 3264 EP - 3269 PB - Science in China Press, 16 Donghuangchenggen North Street Beijing 100717 China, [mailto:csb@scichina.com], [URL:http://www.scichina.com/] VL - 52 IS - 11 SN - 1006-9321, 1006-9321 KW - Pollution Abstracts KW - Soil KW - Groundwater pollution KW - Groundwater KW - P 2000:FRESHWATER POLLUTION UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21340207?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+in+China+Series+E+%28Technological+Sciences%29&rft.atitle=Macroscopic+relationship+for+preferential+flow+in+the+vadose+zone%3A+Theory+and+validation&rft.au=Liu%2C+Huihai%3BZhang%2C+Renduo&rft.aulast=Liu&rft.aufirst=Huihai&rft.date=2009-11-01&rft.volume=52&rft.issue=11&rft.spage=3264&rft.isbn=&rft.btitle=&rft.title=Science+in+China+Series+E+%28Technological+Sciences%29&rft.issn=10069321&rft_id=info:doi/10.1007%2Fs11431-009-0356-1 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-03-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Soil; Groundwater; Groundwater pollution DO - http://dx.doi.org/10.1007/s11431-009-0356-1 ER - TY - JOUR T1 - Opportunities to change development pathways toward lower greenhouse gas emissions through energy efficiency AN - 21214185; 11239146 AB - There is a multiplicity of development pathways in which low energy sector emissions are not necessarily associated with low economic growth. However, changes in development pathways can rarely be imposed from the top. On this basis, examples of energy efficiency opportunities to change development pathways toward lower emissions are presented in this paper. We review opportunities at the sectoral and macro level. The potential for action on nonclimate policies that influence energy use and emissions are presented. Examples are drawn from policies already adopted and implemented in the energy sector. The paper discusses relationships between energy efficiency policies and their synergies and tradeoffs with sustainable development and greenhouse gas emissions. It points to ways that energy efficiency could be mainstreamed into development choices. JF - Energy Efficiency AU - Sathaye, Jayant AU - Lecocq, Franck AU - Masanet, Eric AU - Najam, Adil AU - Schaeffer, Roberto AU - Swart, Rob AU - Winkler, Harald AD - Lawrence Berkeley National Laboratory, Berkeley, CA, USA, jasathaye@lbl.gov Y1 - 2009/11// PY - 2009 DA - Nov 2009 SP - 317 EP - 337 VL - 2 IS - 4 SN - 1570-646X, 1570-646X KW - Pollution Abstracts; Sustainability Science Abstracts KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21214185?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+Efficiency&rft.atitle=Opportunities+to+change+development+pathways+toward+lower+greenhouse+gas+emissions+through+energy+efficiency&rft.au=Sathaye%2C+Jayant%3BLecocq%2C+Franck%3BMasanet%2C+Eric%3BNajam%2C+Adil%3BSchaeffer%2C+Roberto%3BSwart%2C+Rob%3BWinkler%2C+Harald&rft.aulast=Sathaye&rft.aufirst=Jayant&rft.date=2009-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2011-12-14 DO - http://dx.doi.org/10.1007/s12053-009-9044-z ER - TY - JOUR T1 - Characterization of energy use and performance of global cheese processing AN - 21211474; 11184720 AB - The global cheese-making industry processes approximately one quarter of total raw milk production to create a variety of consumer cheeses, and cheese processing can be very energy-intensive. Characterizing energy usage in existing cheese markets and plants can provide baseline information to allow comparisons of energy performance of individual plants and systems. In this paper, we analyzed energy data compiled through extensive literature reviews on cheese-making across various countries and regions. The study has found that the magnitudes of average final energy intensity exhibited significant variations, ranging from 4.9 to 8.9 MJ per kg cheese across a few countries. In addition, the final energy intensity of individual plants exhibited even more significant variations, ranging from 1.8 to 68.2 MJ per kg of cheese from the countries in this study. These significant differences have indicated large potential energy savings' opportunities in the sector. The paper also indicates that there are positive association between implementation of energy measures and the decreasing trends of specific energy consumption over time, and suggests that developing and promulgating an energy-benchmarking framework including a process step approach and efficiency measures should be recommended for evaluating energy performance and improving energy efficiency in cheese-making industry. JF - Energy (Oxford) AU - Xu, Tengfang AU - Flapper, Joris AU - Kramer, Klaas Jan AD - International Energy Studies Group, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA, ttxu@lbl.gov Y1 - 2009/11// PY - 2009 DA - Nov 2009 SP - 1993 EP - 2000 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 34 IS - 11 SN - 0360-5442, 0360-5442 KW - Environmental Engineering Abstracts; Environment Abstracts KW - Dairy products KW - Efficiency KW - Energy usage KW - Energy efficiency KW - Milk KW - Energy consumption KW - potential energy KW - Reviews KW - ENA 03:Energy KW - EE 70:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21211474?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%28Oxford%29&rft.atitle=Characterization+of+energy+use+and+performance+of+global+cheese+processing&rft.au=Xu%2C+Tengfang%3BFlapper%2C+Joris%3BKramer%2C+Klaas+Jan&rft.aulast=Xu&rft.aufirst=Tengfang&rft.date=2009-11-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Dairy products; Energy consumption; Energy efficiency; Efficiency; Reviews; potential energy; Milk; Energy usage DO - http://dx.doi.org/10.1016/j.energy.2009.08.014 ER - TY - JOUR T1 - Structural insights into RNA processing by the human RISC-loading complex AN - 21164884; 11223497 AB - Targeted gene silencing by RNA interference (RNAi) requires loading of a short guide RNA (small interfering RNA (siRNA) or microRNA (miRNA)) onto an Argonaute protein to form the functional center of an RNA-induced silencing complex (RISC). In humans, Argonaute2 (AGO2) assembles with the guide RNA-generating enzyme Dicer and the RNA-binding protein TRBP to form a RISC-loading complex (RLC), which is necessary for efficient transfer of nascent siRNAs and miRNAs from Dicer to AGO2. Here, using single-particle EM analysis, we show that human Dicer has an L-shaped structure. The RLC Dicer's N-terminal DEH/D domain, located in a short 'base branch', interacts with TRBP, whereas its C-terminal catalytic domains in the main body are proximal to AGO2. A model generated by docking the available atomic structures of Dicer and Argonaute homologs into the RLC reconstruction suggests a mechanism for siRNA transfer from Dicer to AGO2. JF - Nature Structural & Molecular Biology AU - Wang, Hong-Wei AU - Noland, Cameron AU - Siridechadilok, Bunpote AU - Taylor, David W AU - Ma, Enbo AU - Felderer, Karin AU - Doudna, Jennifer A AU - Nogales, Eva AD - [1] Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. [2] Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut, USA. Y1 - 2009/11// PY - 2009 DA - Nov 2009 SP - 1148 EP - 1153 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 16 IS - 11 SN - 1545-9993, 1545-9993 KW - Biotechnology and Bioengineering Abstracts; Biochemistry Abstracts 2: Nucleic Acids KW - RNA processing KW - siRNA KW - RNA-binding protein KW - miRNA KW - RNA-mediated interference KW - Enzymes KW - RNA-induced silencing complex KW - Argonaute 2 protein KW - Gene silencing KW - Models KW - W 30940:Products KW - N 14830:RNA UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21164884?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Structural+%26+Molecular+Biology&rft.atitle=Structural+insights+into+RNA+processing+by+the+human+RISC-loading+complex&rft.au=Wang%2C+Hong-Wei%3BNoland%2C+Cameron%3BSiridechadilok%2C+Bunpote%3BTaylor%2C+David+W%3BMa%2C+Enbo%3BFelderer%2C+Karin%3BDoudna%2C+Jennifer+A%3BNogales%2C+Eva&rft.aulast=Wang&rft.aufirst=Hong-Wei&rft.date=2009-11-01&rft.volume=16&rft.issue=11&rft.spage=1148&rft.isbn=&rft.btitle=&rft.title=Nature+Structural+%26+Molecular+Biology&rft.issn=15459993&rft_id=info:doi/10.1038%2Fnsmb.1673 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - RNA processing; RNA-binding protein; siRNA; miRNA; Enzymes; RNA-mediated interference; RNA-induced silencing complex; Argonaute 2 protein; Models; Gene silencing DO - http://dx.doi.org/10.1038/nsmb.1673 ER - TY - JOUR T1 - How many Enrons? Mark-ups in the stated capital cost of independent power producers' (IPPs') power projects in developing countries AN - 21064818; 11184711 AB - I analyze the determinants of the stated capital cost of IPPs' power projects which significantly influences their price of power. I show that IPPs face a strong incentive to overstate their capital cost and argue that effective competition or regulatory scrutiny will limit the extent of the same. I analyze the stated capital costs of combined cycle gas turbine (CCGT) IPP projects in eight developing countries which became operational during 1990-2006 and find that the stated capital cost of projects selected without competitive bidding is 44-56% higher than those selected with competitive bidding, even after controlling for the effect of cost differences among projects. The extent to which the stated capital costs of projects selected without competitive bidding are higher compared those selected with competitive bidding, is a lower bound on the extent to which they are overstated. My results indicate the drawbacks associated with a policy of promoting private sector participation without an adequate focus on improving competition or regulation. JF - Energy (Oxford) AU - Phadke, Amol AD - Energy Analysis Department, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Mailstop 90R4000, Berkeley, CA 94720, USA, aaphadke@lbl.gov Y1 - 2009/11// PY - 2009 DA - Nov 2009 SP - 1917 EP - 1924 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 34 IS - 11 SN - 0360-5442, 0360-5442 KW - Environmental Engineering Abstracts; Environment Abstracts KW - Gas turbines KW - Capital costs KW - Developing countries KW - private sector KW - competition KW - ENA 03:Energy KW - EE 70:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21064818?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%28Oxford%29&rft.atitle=How+many+Enrons%3F+Mark-ups+in+the+stated+capital+cost+of+independent+power+producers%27+%28IPPs%27%29+power+projects+in+developing+countries&rft.au=Phadke%2C+Amol&rft.aulast=Phadke&rft.aufirst=Amol&rft.date=2009-11-01&rft.volume=34&rft.issue=11&rft.spage=1917&rft.isbn=&rft.btitle=&rft.title=Energy+%28Oxford%29&rft.issn=03605442&rft_id=info:doi/10.1016%2Fj.energy.2009.07.043 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Capital costs; competition; Developing countries; private sector; Gas turbines DO - http://dx.doi.org/10.1016/j.energy.2009.07.043 ER - TY - JOUR T1 - Pesticides in Dust from Homes in an Agricultural Area AN - 754542748; 13268309 AB - We collected indoor dust samples from homes in the Salinas Valley of California. Of 22 pesticides measured in 504 samples, permethrins and the organophosphate chlorpyrifos were present in highest amounts. In multivariate Tobit regression models among samples from 197 separate residences, reported agricultural uses of chlorpyrifos, a herbicide (2,3,5,6-tetrachloroterephthalate (DCPA)), and a fungicide (iprodione) on agricultural fields were significantly (p < 0.01) associated, with 83%, 19%, and 49% increases, respectively, in dust concentrations for each kg applied per day, near participant homes, in the month or season prior to sample collection. However, agricultural use of diazinon, which was 2.2 times that of chlorpyrifos, and of permethrin were not significantly associated with dust levels. Other variables independently associated with dust levels included temperature and rainfall, farmworkers storing work shoes in the home, storing a diazinon product in the home, housing density, having a home less clean, and having an air conditioner. Permethrins, chlorpyrifos, DCPA, and iprodione have either a log octanol-water partition coefficient (Kow) greater than 4.0, a very low vapor pressure, or both. Health risk assessments for pesticides that have these properties may need to include evaluation of exposures to house dust. JF - Environmental Science & Technology AU - Harnly, Martha E AU - Bradman, Asa AU - Nishioka, Marcia AU - McKone, Thomas E AU - Smith, Daniel AU - McLaughlin, Robert AU - Kavanagh-Baird, Geri AU - Castorina, Rosemary AU - Eskenazi, Brenda AD - Environmental Health Investigations Branch, California Department of Public Health, Richmond, California, Center for Children's Environmental Health Research, School of Public Health, University of California, Berkeley, California, Battelle Memorial Institute, Columbus, Ohio, and Lawrence Berkeley National Laboratory, Berkeley, California Y1 - 2009/10/30/ PY - 2009 DA - 2009 Oct 30 SP - 8767 EP - 8774 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 43 IS - 23 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Sustainability Science Abstracts; Risk Abstracts; Environment Abstracts KW - Risk assessment KW - Housing KW - Air conditioning KW - Rainfall KW - permethrin KW - Dust KW - Air temperature KW - Models KW - Vapors KW - Iprodione KW - Regression analysis KW - USA, California KW - Pressure KW - valleys KW - Temperature KW - Permethrin KW - Herbicides KW - organophosphates KW - octanol-water partition coefficients KW - Clothing KW - Chlorpyrifos KW - House dust KW - Fungicides KW - Pesticides KW - Diazinon KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - A 01450:Environmental Pollution & Waste Treatment KW - R2 23050:Environment KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754542748?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Pesticides+in+Dust+from+Homes+in+an+Agricultural+Area&rft.au=Harnly%2C+Martha+E%3BBradman%2C+Asa%3BNishioka%2C+Marcia%3BMcKone%2C+Thomas+E%3BSmith%2C+Daniel%3BMcLaughlin%2C+Robert%3BKavanagh-Baird%2C+Geri%3BCastorina%2C+Rosemary%3BEskenazi%2C+Brenda&rft.aulast=Harnly&rft.aufirst=Martha&rft.date=2009-10-30&rft.volume=43&rft.issue=23&rft.spage=8767&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9020958 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Risk assessment; Housing; Rainfall; Permethrin; Herbicides; organophosphates; octanol-water partition coefficients; Air temperature; Dust; Clothing; Models; Chlorpyrifos; Vapors; House dust; Iprodione; Pesticides; Fungicides; Regression analysis; Pressure; Diazinon; Air conditioning; valleys; Temperature; permethrin; USA, California DO - http://dx.doi.org/10.1021/es9020958 ER - TY - JOUR T1 - Receiver Domains Control the Active-State Stoichiometry of Aquifex aeolicus s super(5) super(4) Activator NtrC4, as Revealed by Electrospray Ionization Mass Spectrometry AN - 20965492; 11064886 AB - A common challenge with studies of proteins in vitro is determining which constructs and conditions are most physiologically relevant. s super(5) super(4) activators are proteins that undergo regulated assembly to form an active ATPase ring that enables transcription by s super(5) super(4)-polymerase. Previous studies of AAA super(+) ATPase domains from s super(5) super(4) activators have shown that some are heptamers, while others are hexamers. Because active oligomers assemble from off-state dimers, it was thought that even-numbered oligomers should dominate, and that heptamer formation would occur when individual domains of the activators, rather than the intact proteins, were studied. Here we present results from electrospray ionization mass spectrometry experiments characterizing the assembly states of intact NtrC4 (a s super(5) super(4) activator from Aquifex aeolicus, an extreme thermophile), as well as its ATPase domain alone, and regulatory-ATPase and ATPase-DNA binding domain combinations. We show that the full-length and activated regulatory-ATPase proteins form hexamers, whereas the isolated ATPase domain, unactivated regulatory-ATPase, and ATPase-DNA binding domain form heptamers. Activation of the N-terminal regulatory domain is the key factor stabilizing the hexamer form of the ATPase, relative to the heptamer. JF - Journal of Molecular Biology AU - Batchelor, J D AU - Sterling, HJ AU - Hong, E AU - Williams, E R AU - Wemmer, DE AD - University of California, Berkeley, CA 94720, USA, dewemmer@lbl.gov Y1 - 2009/10/30/ PY - 2009 DA - 2009 Oct 30 SP - 634 EP - 643 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 393 IS - 3 SN - 0022-2836, 0022-2836 KW - Microbiology Abstracts B: Bacteriology; ASFA 1: Biological Sciences & Living Resources KW - hexamers KW - Molecular biology KW - Adenosinetriphosphatase KW - Aquifex aeolicus KW - Transcription KW - Stabilizing KW - Mass spectroscopy KW - Q1 08183:Taxonomy and morphology KW - J 02330:Biochemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20965492?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Molecular+Biology&rft.atitle=Receiver+Domains+Control+the+Active-State+Stoichiometry+of+Aquifex+aeolicus+s+super%285%29+super%284%29+Activator+NtrC4%2C+as+Revealed+by+Electrospray+Ionization+Mass+Spectrometry&rft.au=Batchelor%2C+J+D%3BSterling%2C+HJ%3BHong%2C+E%3BWilliams%2C+E+R%3BWemmer%2C+DE&rft.aulast=Batchelor&rft.aufirst=J&rft.date=2009-10-30&rft.volume=393&rft.issue=3&rft.spage=634&rft.isbn=&rft.btitle=&rft.title=Journal+of+Molecular+Biology&rft.issn=00222836&rft_id=info:doi/10.1016%2Fj.jmb.2009.08.033 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Last updated - 2014-05-05 N1 - SubjectsTermNotLitGenreText - Molecular biology; Transcription; Stabilizing; Mass spectroscopy; hexamers; Adenosinetriphosphatase; Aquifex aeolicus DO - http://dx.doi.org/10.1016/j.jmb.2009.08.033 ER - TY - CPAPER T1 - Ceramic Scaffolds for Tissue Engineering T2 - 2009 Materials Science and Technology Conference and Exposition (MS&T 2009) AN - 42572200; 5480405 JF - 2009 Materials Science and Technology Conference and Exposition (MS&T 2009) AU - Tomsia, Antoni Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Ceramics KW - Scaffolds KW - Tissue engineering KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42572200?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Materials+Science+and+Technology+Conference+and+Exposition+%28MS%26T+2009%29&rft.atitle=Ceramic+Scaffolds+for+Tissue+Engineering&rft.au=Tomsia%2C+Antoni&rft.aulast=Tomsia&rft.aufirst=Antoni&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Materials+Science+and+Technology+Conference+and+Exposition+%28MS%26T+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.programmaster.org/PM/PM.nsf/SessionSheetView?OpenForm&Paren tUNID=460830349F34625F8525746B006198F0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Computer-Aided Design Integrated Gamma-Ray Imaging T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42109170; 5514528 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Mihailescu, L AU - Rohel, J AU - Vetter, K AU - Maltz, J AU - Chivers, D AU - Amman, M AU - Gullberg, G Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Imaging techniques KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42109170?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Computer-Aided+Design+Integrated+Gamma-Ray+Imaging&rft.au=Mihailescu%2C+L%3BRohel%2C+J%3BVetter%2C+K%3BMaltz%2C+J%3BChivers%2C+D%3BAmman%2C+M%3BGullberg%2C+G&rft.aulast=Mihailescu&rft.aufirst=L&rft.date=2009-10-25&rft.volume=43&rft.issue=23&rft.spage=8767&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9020958 L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - OpenPET: a Flexible Electronics System for Radiotracer Imaging T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42097135; 5515211 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Moses, W AU - Buckley, S AU - Vu, C. AU - Peng, Q AU - Pavlov, N AU - Choong, W.-S. AU - Wu, J. AU - Jackson, C Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Imaging techniques KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42097135?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=OpenPET%3A+a+Flexible+Electronics+System+for+Radiotracer+Imaging&rft.au=Moses%2C+W%3BBuckley%2C+S%3BVu%2C+C.%3BPeng%2C+Q%3BPavlov%2C+N%3BChoong%2C+W.-S.%3BWu%2C+J.%3BJackson%2C+C&rft.aulast=Moses&rft.aufirst=W&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Scintillation Properties of Eu2+-Activated Barium Fluoroiodide T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42095785; 5514774 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Gundiah, G AU - Bourret-Courchesne, E AU - Bizarri, G AU - Hanrahanx, S AU - Chaudhry, A AU - Canning, A AU - Moses, W AU - Derenzo, S Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Barium KW - Scintillation KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42095785?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Scintillation+Properties+of+Eu2%2B-Activated+Barium+Fluoroiodide&rft.au=Gundiah%2C+G%3BBourret-Courchesne%2C+E%3BBizarri%2C+G%3BHanrahanx%2C+S%3BChaudhry%2C+A%3BCanning%2C+A%3BMoses%2C+W%3BDerenzo%2C+S&rft.aulast=Gundiah&rft.aufirst=G&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Detector Module Development for the High Efficiency Multimode Imager T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42084653; 5514520 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Amman, M AU - Luke, P AU - Lee, J AU - Mihailescu, L AU - Wunderer, C AU - Zoglauer, A AU - Vetter, K AU - Galloway, M AU - Chen, H AU - Marthandam, P AU - Awadalla, S AU - Taherion, S AU - Bindley, G Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Efficiency KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42084653?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Detector+Module+Development+for+the+High+Efficiency+Multimode+Imager&rft.au=Amman%2C+M%3BLuke%2C+P%3BLee%2C+J%3BMihailescu%2C+L%3BWunderer%2C+C%3BZoglauer%2C+A%3BVetter%2C+K%3BGalloway%2C+M%3BChen%2C+H%3BMarthandam%2C+P%3BAwadalla%2C+S%3BTaherion%2C+S%3BBindley%2C+G&rft.aulast=Amman&rft.aufirst=M&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=23rd+Large+Installation+System+Administration+Conference+%28LISA+%2709%29&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Data Modelling and Harmonization with OWL: Opportunities and Lessons Learned T2 - 8th International Semantic Web Conference (ISWC 2009) AN - 42082018; 5522480 JF - 8th International Semantic Web Conference (ISWC 2009) AU - McCarthy, John AU - Warzel, Denise AU - Kendall, Elisa AU - Bargmeyer, Bruce AU - Solbrig, Harold AU - Keck, Kevin AU - Gey, Fred Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Data processing KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42082018?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=8th+International+Semantic+Web+Conference+%28ISWC+2009%29&rft.atitle=Data+Modelling+and+Harmonization+with+OWL%3A+Opportunities+and+Lessons+Learned&rft.au=McCarthy%2C+John%3BWarzel%2C+Denise%3BKendall%2C+Elisa%3BBargmeyer%2C+Bruce%3BSolbrig%2C+Harold%3BKeck%2C+Kevin%3BGey%2C+Fred&rft.aulast=McCarthy&rft.aufirst=John&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=8th+International+Semantic+Web+Conference+%28ISWC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.abdn.ac.uk/~r01srt7/swese2009/agenda.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Improving Optical Monte Carlo Simulations with Measured Optical Reflectance T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42081737; 5515066 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Janecek, M AU - Moses, W Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Monte Carlo simulation KW - Reflectance KW - Statistical analysis KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42081737?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Geology&rft.atitle=On+mobilization+of+lead+and+arsenic+in+ground+water+in+response+to+CO+%28sub+2%29+leakage+from+deep+geological+storage&rft.au=Zheng%2C+Liange%3BApps%2C+John+A%3BZhang%2C+Yingqi%3BXu%2C+Tianfu%3BBirkholzer%2C+Jens+T&rft.aulast=Zheng&rft.aufirst=Liange&rft.date=2009-11-01&rft.volume=268&rft.issue=3-4&rft.spage=281&rft.isbn=&rft.btitle=&rft.title=Chemical+Geology&rft.issn=00092541&rft_id=info:doi/10.1016%2Fj.chemgeo.2009.09.007 L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Fast Analog and Binary Monolithic Pixels in Deep-Submicron SOI Technology T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42081526; 5514604 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Battaglia, M AU - Bisello, D AU - Contarato, D AU - Denes, P AU - Giubilato, P AU - Yee, M AU - Mattiazzo, S AU - Pantano, D AU - Pozzobon, N AU - Vu, C. Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Technology KW - Analogs KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42081526?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Fast+Analog+and+Binary+Monolithic+Pixels+in+Deep-Submicron+SOI+Technology&rft.au=Battaglia%2C+M%3BBisello%2C+D%3BContarato%2C+D%3BDenes%2C+P%3BGiubilato%2C+P%3BYee%2C+M%3BMattiazzo%2C+S%3BPantano%2C+D%3BPozzobon%2C+N%3BVu%2C+C.&rft.aulast=Battaglia&rft.aufirst=M&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Syntheses and X-Ray Excited Luminescence Properties of Europium Doped Ba3P2O8, Ba3P4O13, Ba2P2O7 and BaP2O6 T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42081447; 5514678 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Borade, R AU - Bourret-Courchesne, E AU - Weber, M AU - Derenzo, S Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Luminescence KW - Europium KW - Ionizing radiation KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42081447?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Syntheses+and+X-Ray+Excited+Luminescence+Properties+of+Europium+Doped+Ba3P2O8%2C+Ba3P4O13%2C+Ba2P2O7+and+BaP2O6&rft.au=Borade%2C+R%3BBourret-Courchesne%2C+E%3BWeber%2C+M%3BDerenzo%2C+S&rft.aulast=Borade&rft.aufirst=R&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Virtualization for Physics Analysis in ATLAS T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42081341; 5514564 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Yao, Y Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Atlases KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42081341?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Virtualization+for+Physics+Analysis+in+ATLAS&rft.au=Yao%2C+Y&rft.aulast=Yao&rft.aufirst=Y&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Using the "Java Platform, Enterprise Edition" for Data Handling, Transfer and Storage T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42080999; 5514563 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Patton, S Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Storage KW - Data processing KW - Computer programs KW - Handling KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42080999?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Using+the+%22Java+Platform%2C+Enterprise+Edition%22+for+Data+Handling%2C+Transfer+and+Storage&rft.au=Patton%2C+S&rft.aulast=Patton&rft.aufirst=S&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Image Reconstruction for Compton Telescopes Based on a Partially-Binned List-Mode Approach T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42080750; 5514526 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Zoglauer, A AU - Boggs, S AU - Kippen, R Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Image processing KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42080750?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Image+Reconstruction+for+Compton+Telescopes+Based+on+a+Partially-Binned+List-Mode+Approach&rft.au=Zoglauer%2C+A%3BBoggs%2C+S%3BKippen%2C+R&rft.aulast=Zoglauer&rft.aufirst=A&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Low-Noise Low-Mass Front-End Electronics for Low-Background Experiments Using Germanium Detectors T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42077166; 5514903 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Luke, P AU - Tindall, C AU - Vetter, K AU - Chan, Y.-D. Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Germanium KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42077166?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Low-Noise+Low-Mass+Front-End+Electronics+for+Low-Background+Experiments+Using+Germanium+Detectors&rft.au=Luke%2C+P%3BTindall%2C+C%3BVetter%2C+K%3BChan%2C+Y.-D.&rft.aulast=Luke&rft.aufirst=P&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Growth and Scintillation Properties of Eu Activated BaXY (X,Y=Br,Cl,I) T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42076728; 5514771 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Bourret-Courchesne, E AU - Bizarri, G AU - Hanrahan, S AU - Gundiah, G AU - Derenzo, S Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Scintillation KW - Growth KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42076728?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Growth+and+Scintillation+Properties+of+Eu+Activated+BaXY+%28X%2CY%3DBr%2CCl%2CI%29&rft.au=Bourret-Courchesne%2C+E%3BBizarri%2C+G%3BHanrahan%2C+S%3BGundiah%2C+G%3BDerenzo%2C+S&rft.aulast=Bourret-Courchesne&rft.aufirst=E&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The Luminosity Monitoring System for the LHC: Modeling and Test Results T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42070190; 5514221 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Ratti, A AU - Beche, J.-F. AU - Byrd, J AU - Denes, P AU - Doolittle, L AU - Manfredi, P AU - Matis, H AU - Monroy, M AU - Stezelberger, T AU - Turner, W AU - Yaver, H AU - Bravin, E AU - Dress, A AU - Stiller, J AU - Chow, K AU - Zimmermann, S AU - Miyamoto, R Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Monitoring systems KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42070190?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=The+Luminosity+Monitoring+System+for+the+LHC%3A+Modeling+and+Test+Results&rft.au=Ratti%2C+A%3BBeche%2C+J.-F.%3BByrd%2C+J%3BDenes%2C+P%3BDoolittle%2C+L%3BManfredi%2C+P%3BMatis%2C+H%3BMonroy%2C+M%3BStezelberger%2C+T%3BTurner%2C+W%3BYaver%2C+H%3BBravin%2C+E%3BDress%2C+A%3BStiller%2C+J%3BChow%2C+K%3BZimmermann%2C+S%3BMiyamoto%2C+R&rft.aulast=Ratti&rft.aufirst=A&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Health+physics&rft.issn=1538-5159&rft_id=info:doi/10.1097%2FHP.0b013e3181b08a10 L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Pulse Shape Analysis Method for Estimating Charge Mobility in Large Planar HPGe Double-Sided Strip Detectors T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42069320; 5514852 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Chivers, D AU - Mihailescu, L AU - Prussin, S AU - Vetter, K Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Mobility KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42069320?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Pulse+Shape+Analysis+Method+for+Estimating+Charge+Mobility+in+Large+Planar+HPGe+Double-Sided+Strip+Detectors&rft.au=Chivers%2C+D%3BMihailescu%2C+L%3BPrussin%2C+S%3BVetter%2C+K&rft.aulast=Chivers&rft.aufirst=D&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Implementation of Signal Decomposition for Compton Imaging Using High-Purity Germanium Detectors T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42068504; 5514336 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Rohel, J AU - Mihailescu, L AU - Vetter, K AU - Chivers, D AU - Maltz, J AU - Gullberg, G Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Germanium KW - Decomposition KW - Imaging techniques KW - Degradation KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42068504?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Implementation+of+Signal+Decomposition+for+Compton+Imaging+Using+High-Purity+Germanium+Detectors&rft.au=Rohel%2C+J%3BMihailescu%2C+L%3BVetter%2C+K%3BChivers%2C+D%3BMaltz%2C+J%3BGullberg%2C+G&rft.aulast=Rohel&rft.aufirst=J&rft.date=2009-10-25&rft.volume=16&rft.issue=11&rft.spage=1148&rft.isbn=&rft.btitle=&rft.title=Nature+Structural+%26+Molecular+Biology&rft.issn=15459993&rft_id=info:doi/10.1038%2Fnsmb.1673 L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - First-Principles Calculations for Ce/Li Co-Doped Ba Silicates and Experimental Validation T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42068094; 5514781 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Chaudhry, A AU - Canning, A AU - Boutchko, R AU - Gundiah, G AU - Bourret-Courchesne, E AU - Derenzo, S AU - Gronbech-Jensen, N Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Silicates KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42068094?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=First-Principles+Calculations+for+Ce%2FLi+Co-Doped+Ba+Silicates+and+Experimental+Validation&rft.au=Chaudhry%2C+A%3BCanning%2C+A%3BBoutchko%2C+R%3BGundiah%2C+G%3BBourret-Courchesne%2C+E%3BDerenzo%2C+S%3BGronbech-Jensen%2C+N&rft.aulast=Chaudhry&rft.aufirst=A&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Exact Reconstruction from Uniformly Attenuated Truncated SPECT Projection Data with Tiny a Proiri Knowledge T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42067975; 5515129 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Gullberg, G AU - Huang, Q Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Data processing KW - Single photon emission computed tomography KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42067975?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Philosophical+Transactions+-+Royal+Society.+Mathematical%2C+Physical+and+Engineering+Sciences&rft.atitle=A+parallel+second+order+adaptive+mesh+algorithm+for+incompressible+flow+in+porous+media&rft.au=Pau%2C+George+S+H%3BAlmgren%2C+Ann+S%3BBell%2C+John+B%3BLijewski%2C+Michael+J%3BNikiforakis%2C+N&rft.aulast=Pau&rft.aufirst=George+S&rft.date=2009-11-01&rft.volume=367&rft.issue=1907&rft.spage=4633&rft.isbn=&rft.btitle=&rft.title=Philosophical+Transactions+-+Royal+Society.+Mathematical%2C+Physical+and+Engineering+Sciences&rft.issn=1364503X&rft_id=info:doi/10.1098%2Frsta.2009.0160 L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - CVMFS-Based Easy-to-Install Linux to Distribute Large Computing Software to End Users T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42066683; 5514281 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Yao, Y Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Computer programs KW - Software KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42066683?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=CVMFS-Based+Easy-to-Install+Linux+to+Distribute+Large+Computing+Software+to+End+Users&rft.au=Yao%2C+Y&rft.aulast=Yao&rft.aufirst=Y&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Empirical Estimation of the Gamma-Ray Full-Energy Absorption Efficiency of Cylinders and Slabs from 0.14 to 2 MeV T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42065533; 5514760 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Derenzo, S AU - Choong, W.-S. Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Efficiency KW - Absorption KW - Cylinders KW - Food absorption KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42065533?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Empirical+Estimation+of+the+Gamma-Ray+Full-Energy+Absorption+Efficiency+of+Cylinders+and+Slabs+from+0.14+to+2+MeV&rft.au=Derenzo%2C+S%3BChoong%2C+W.-S.&rft.aulast=Derenzo&rft.aufirst=S&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Tissue Spillover Correction for Dynamic Pinhole SPECT Studies of Fatty Acid Metabolism in the Rat Heart T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42064411; 5515363 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Reutter, B AU - Boutchko, R AU - Huesman, R AU - Sauve, A AU - Gullberg, G Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Metabolism KW - Fatty acids KW - Heart KW - Single photon emission computed tomography KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42064411?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Tissue+Spillover+Correction+for+Dynamic+Pinhole+SPECT+Studies+of+Fatty+Acid+Metabolism+in+the+Rat+Heart&rft.au=Reutter%2C+B%3BBoutchko%2C+R%3BHuesman%2C+R%3BSauve%2C+A%3BGullberg%2C+G&rft.aulast=Reutter&rft.aufirst=B&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Space Charge Effects of Charge Clouds in Large HPGe Planar Double-Sided Strip Detectors T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42064376; 5514851 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Chivers, D AU - Mihailescu, L AU - Prussin, S AU - Vetter, K Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Clouds KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42064376?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Space+Charge+Effects+of+Charge+Clouds+in+Large+HPGe+Planar+Double-Sided+Strip+Detectors&rft.au=Chivers%2C+D%3BMihailescu%2C+L%3BPrussin%2C+S%3BVetter%2C+K&rft.aulast=Chivers&rft.aufirst=D&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Segmented P-Type Point Contact Germanium Detector T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42063836; 5514905 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Amman, M AU - Luke, P AU - Chan, Y AU - Lesko, K Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Germanium KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42063836?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Segmented+P-Type+Point+Contact+Germanium+Detector&rft.au=Amman%2C+M%3BLuke%2C+P%3BChan%2C+Y%3BLesko%2C+K&rft.aulast=Amman&rft.aufirst=M&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Empirical Estimation of Band Gaps, and Ce3+ and Eu2+ 4f-5d Absorption Energies for New Radiation Detector Materials T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42063127; 5514756 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Derenzo, S AU - Bizarri, G Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Absorption KW - Radiation KW - Energy KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42063127?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Empirical+Estimation+of+Band+Gaps%2C+and+Ce3%2B+and+Eu2%2B+4f-5d+Absorption+Energies+for+New+Radiation+Detector+Materials&rft.au=Derenzo%2C+S%3BBizarri%2C+G&rft.aulast=Derenzo&rft.aufirst=S&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Investigation of Multi-Anode Microchannel Plate PMT for Time-of Flight PET T2 - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AN - 42062743; 5515330 JF - 2009 IEEE Nuclear Science Symposium and Medical Imaging Conference AU - Choong, W.-S. Y1 - 2009/10/25/ PY - 2009 DA - 2009 Oct 25 KW - Flight KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42062743?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.atitle=Investigation+of+Multi-Anode+Microchannel+Plate+PMT+for+Time-of+Flight+PET&rft.au=Choong%2C+W.-S.&rft.aulast=Choong&rft.aufirst=W.-S.&rft.date=2009-10-25&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+IEEE+Nuclear+Science+Symposium+and+Medical+Imaging+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.nss-mic.org/2009/Program/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - One-Atom-at-a-Time Chemistry of the Heaviest Elements T2 - 61st Southeast Regional Meeting of the American Chemical Society (SERMACS 2009) AN - 42081222; 5509039 JF - 61st Southeast Regional Meeting of the American Chemical Society (SERMACS 2009) AU - Hoffman, Darleane Y1 - 2009/10/21/ PY - 2009 DA - 2009 Oct 21 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42081222?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Optimized+Ion+Energy+Profiles+for+Heavy+Ion+Direct+Drive+Targets&rft.au=Hay%2C+Michael%3BBarnard%2C+John%3BPerkins%2C+L%3BLogan%2C+B&rft.aulast=Hay&rft.aufirst=Michael&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://www.sermacs2009.org/program/final_programs/Program_Book%20SERMA CS_2009_Complete.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Engineering Phage Materials with Desired Peptide Display: Rational Design Sustained through Natural Selection AN - 754877149; 13301764 AB - Genetic engineering of phage provides novel opportunities to build various nanomaterials by displaying functional peptide motifs on its surface coat protein. However, any genetic modifications of phage coat proteins must be able to accommodate their many biological roles in the phage replication process. To express functional but inherently unfavorable peptide motifs on major coat protein pVIII, we devised a novel genetic conjugation method to circumvent bacterial biological censorship. Constraining the designed peptides among the degenerate flanking residues, we obtained a pVIII library of phage that retained the desired sequences yet could navigate through the phage replication process due to the naturally selected flanking residues. Further, we systematically analyzed the biochemical and size-related compensation mechanisms of the pVIII expressed peptides by constructing four chemically diverse (His, Trp, Glu, Lys) partial library series. Described genetic conjugation methodology can serve to improve the design of engineered phage and allow further exploitation of these particles as functional nanobiomaterials for various applications. JF - Bioconjugate Chemistry AU - Merzlyak, Anna AU - Lee, Seung-Wuk AD - UCSF and UC Berkeley Joint Graduate Group in Bioengineering, Berkeley, California 94720, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Department of Bioengineering, University of California, Berkeley, California 94720, and Berkeley Nanoscience and Nanoengineering Institute, Berkeley, California 94720 Y1 - 2009/10/20/ PY - 2009 DA - 2009 Oct 20 SP - 2300 EP - 2310 PB - American Chemical Society, P.O. Box 182426 Columbus OH 43218-2426 USA VL - 20 IS - 12 SN - 1043-1802, 1043-1802 KW - Microbiology Abstracts B: Bacteriology KW - Phages KW - Replication KW - Genetic engineering KW - Coat protein KW - Natural selection KW - nanotechnology KW - J 02310:Genetics & Taxonomy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754877149?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioconjugate+Chemistry&rft.atitle=Engineering+Phage+Materials+with+Desired+Peptide+Display%3A+Rational+Design+Sustained+through+Natural+Selection&rft.au=Merzlyak%2C+Anna%3BLee%2C+Seung-Wuk&rft.aulast=Merzlyak&rft.aufirst=Anna&rft.date=2009-10-20&rft.volume=20&rft.issue=12&rft.spage=2300&rft.isbn=&rft.btitle=&rft.title=Bioconjugate+Chemistry&rft.issn=10431802&rft_id=info:doi/10.1021%2Fbc900303f LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-09-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Phages; Replication; Genetic engineering; Coat protein; Natural selection; nanotechnology DO - http://dx.doi.org/10.1021/bc900303f ER - TY - CPAPER T1 - Double ionization dynamics of Helium dimers investigated during charged particle impact T2 - 62nd Gaseous Electronics Conference AN - 42493941; 5439326 JF - 62nd Gaseous Electronics Conference AU - Schoeffler, Markus Y1 - 2009/10/20/ PY - 2009 DA - 2009 Oct 20 KW - Particulates KW - Helium KW - Ionization KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42493941?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=62nd+Gaseous+Electronics+Conference&rft.atitle=Double+ionization+dynamics+of+Helium+dimers+investigated+during+charged+particle+impact&rft.au=Schoeffler%2C+Markus&rft.aulast=Schoeffler&rft.aufirst=Markus&rft.date=2009-10-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/GEC09/APS_epitome LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Translation of discoveries from large-scale genomics studies in ovarian cancer T2 - 59th Annual Meeting of The American Society of Human Genetics AN - 42054168; 5509357 JF - 59th Annual Meeting of The American Society of Human Genetics AU - Gray, J Y1 - 2009/10/20/ PY - 2009 DA - 2009 Oct 20 KW - Ovarian carcinoma KW - Translation KW - Genomics KW - Ovarian cancer KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42054168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=59th+Annual+Meeting+of+The+American+Society+of+Human+Genetics&rft.atitle=Translation+of+discoveries+from+large-scale+genomics+studies+in+ovarian+cancer&rft.au=Gray%2C+J&rft.aulast=Gray&rft.aufirst=J&rft.date=2009-10-20&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=59th+Annual+Meeting+of+The+American+Society+of+Human+Genetics&rft.issn=&rft_id=info:doi/ L2 - http://ashg.org/2009meeting/pdf/ashg09_programguide.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Toward Understanding the Speciation of An(III)/Ln(III) under TALSPEAK Conditions T2 - 16th Symposium on Separation Sciences and Technology for Energy Applications AN - 42508874; 5440442 JF - 16th Symposium on Separation Sciences and Technology for Energy Applications AU - Rao, L AU - Tian, G Y1 - 2009/10/18/ PY - 2009 DA - 2009 Oct 18 KW - Speciation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42508874?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=16th+Symposium+on+Separation+Sciences+and+Technology+for+Energy+Applications&rft.atitle=Toward+Understanding+the+Speciation+of+An%28III%29%2FLn%28III%29+under+TALSPEAK+Conditions&rft.au=Rao%2C+L%3BTian%2C+G&rft.aulast=Rao&rft.aufirst=L&rft.date=2009-10-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=16th+Symposium+on+Separation+Sciences+and+Technology+for+Energy+Applications&rft.issn=&rft_id=info:doi/ L2 - http://sst.ornl.gov/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Selective Separation of Actinides from HLW Using N,N'-dimethyl-N,N'-dioctyl-3-oxa-pentadiamide T2 - 16th Symposium on Separation Sciences and Technology for Energy Applications AN - 42507233; 5440380 JF - 16th Symposium on Separation Sciences and Technology for Energy Applications AU - Tian, G AU - Rao, L Y1 - 2009/10/18/ PY - 2009 DA - 2009 Oct 18 KW - Actinides KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42507233?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Thermal+simulations+of+the+NDCX-I+target+experiments&rft.au=Henestroza%2C+E%3BBienioske%2C+F%3BNi%2C+P.%3BMore%2C+R%3BBarnard%2C+J&rft.aulast=Henestroza&rft.aufirst=E&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://sst.ornl.gov/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Satellite-Based Measurements of Surface Deformation Reveal Fluid Flow Associated with the Geological Storage of Carbon Dioxide T2 - 2009 Annual Meeting of the Geology Society of America AN - 42127095; 5546957 JF - 2009 Annual Meeting of the Geology Society of America AU - Vasco, D AU - Rucci, Alessio AU - Ferretti, Alessandro AU - Novali, Fabrizio AU - Bissell, Rob AU - Ringrose, Philip AU - Mathieson, Allan AU - Wright, Iain Y1 - 2009/10/18/ PY - 2009 DA - 2009 Oct 18 KW - Deformation KW - Storage KW - Geology KW - Carbon dioxide KW - Fluid flow KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42127095?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Annual+Meeting+of+the+Geology+Society+of+America&rft.atitle=Satellite-Based+Measurements+of+Surface+Deformation+Reveal+Fluid+Flow+Associated+with+the+Geological+Storage+of+Carbon+Dioxide&rft.au=Vasco%2C+D%3BRucci%2C+Alessio%3BFerretti%2C+Alessandro%3BNovali%2C+Fabrizio%3BBissell%2C+Rob%3BRingrose%2C+Philip%3BMathieson%2C+Allan%3BWright%2C+Iain&rft.aulast=Vasco&rft.aufirst=D&rft.date=2009-10-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Annual+Meeting+of+the+Geology+Society+of+America&rft.issn=&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2009AM/finalprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Growth and Evolution of the Island of Hawaii: Perspectives from Hsdp Deep Drilling T2 - 2009 Annual Meeting of the Geology Society of America AN - 42125515; 5546738 JF - 2009 Annual Meeting of the Geology Society of America AU - Depaolo, D AU - Baker, M AU - Stolper, E AU - Sharp, W Y1 - 2009/10/18/ PY - 2009 DA - 2009 Oct 18 KW - USA, Hawaii KW - Islands KW - Drilling KW - Evolution KW - Growth KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42125515?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Annual+Meeting+of+the+Geology+Society+of+America&rft.atitle=Growth+and+Evolution+of+the+Island+of+Hawaii%3A+Perspectives+from+Hsdp+Deep+Drilling&rft.au=Depaolo%2C+D%3BBaker%2C+M%3BStolper%2C+E%3BSharp%2C+W&rft.aulast=Depaolo&rft.aufirst=D&rft.date=2009-10-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Annual+Meeting+of+the+Geology+Society+of+America&rft.issn=&rft_id=info:doi/ L2 - http://gsa.confex.com/gsa/2009AM/finalprogram/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Looking at buried layers and interfaces: photoelectron spectroscopy with x-ray standing waves and hard x-rays T2 - 13th European Conference on Applications of Surface and Interface Analysis (ECASIA 2009) AN - 42024882; 5496121 JF - 13th European Conference on Applications of Surface and Interface Analysis (ECASIA 2009) AU - Fadley, Charles Y1 - 2009/10/18/ PY - 2009 DA - 2009 Oct 18 KW - Photoelectron spectroscopy KW - Ionizing radiation KW - Waves KW - Standing waves KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42024882?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=13th+European+Conference+on+Applications+of+Surface+and+Interface+Analysis+%28ECASIA+2009%29&rft.atitle=Looking+at+buried+layers+and+interfaces%3A+photoelectron+spectroscopy+with+x-ray+standing+waves+and+hard+x-rays&rft.au=Fadley%2C+Charles&rft.aulast=Fadley&rft.aufirst=Charles&rft.date=2009-10-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=13th+European+Conference+on+Applications+of+Surface+and+Interface+Analysis+%28ECASIA+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ecasia09.org/admin/UserFiles/File/EcasiaAbstractBook_Web.pd f LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Molecular Studies of Surfaces under Reaction Conditions; Sum Frequency Generation Vibrational Spectroscopy, Scanning Tunneling Microscopy and Ambient Pressure X-ray Photoelectron Spectroscopy T2 - 13th European Conference on Applications of Surface and Interface Analysis (ECASIA 2009) AN - 42021242; 5496090 JF - 13th European Conference on Applications of Surface and Interface Analysis (ECASIA 2009) AU - Somorjai, Gabor Y1 - 2009/10/18/ PY - 2009 DA - 2009 Oct 18 KW - Photoelectron spectroscopy KW - Scanning tunneling microscopy KW - Ionizing radiation KW - Pressure KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42021242?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=13th+European+Conference+on+Applications+of+Surface+and+Interface+Analysis+%28ECASIA+2009%29&rft.atitle=Molecular+Studies+of+Surfaces+under+Reaction+Conditions%3B+Sum+Frequency+Generation+Vibrational+Spectroscopy%2C+Scanning+Tunneling+Microscopy+and+Ambient+Pressure+X-ray+Photoelectron+Spectroscopy&rft.au=Somorjai%2C+Gabor&rft.aulast=Somorjai&rft.aufirst=Gabor&rft.date=2009-10-18&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=13th+European+Conference+on+Applications+of+Surface+and+Interface+Analysis+%28ECASIA+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ecasia09.org/admin/UserFiles/File/EcasiaAbstractBook_Web.pd f LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Neutron production by cosmic ray muons at the Sudbury Neutrino Observatory T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42496147; 5438669 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Loach, James Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - Canada, Ontario, Sudbury KW - Neutrons KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42496147?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.atitle=Controlled+electron+injection+in+laser+wakefield+accelerators+using+axially+tailored+plasmas&rft.au=Gonsalves%2C+Anthony&rft.aulast=Gonsalves&rft.aufirst=Anthony&rft.date=2009-11-02&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=51st+Annual+Meeting+of+the+APS+Division+of+Plasma+Physics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Recent results on identified particle spectra from d+Au collisions at RHIC T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42495599; 5438512 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Jena, Chitrasen Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - Particulates KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42495599?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=Recent+results+on+identified+particle+spectra+from+d%2BAu+collisions+at+RHIC&rft.au=Jena%2C+Chitrasen&rft.aulast=Jena&rft.aufirst=Chitrasen&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The Decades of the Neutrino T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42492704; 5438265 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Freedman, Stuart Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42492704?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=The+Decades+of+the+Neutrino&rft.au=Freedman%2C+Stuart&rft.aulast=Freedman&rft.aufirst=Stuart&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Predictions in 238U + 238U collisions at RHIC T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42492078; 5438410 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Masui, Hiroshi Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42492078?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=Predictions+in+238U+%2B+238U+collisions+at+RHIC&rft.au=Masui%2C+Hiroshi&rft.aulast=Masui&rft.aufirst=Hiroshi&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - MAJORANA: An Ultra-Low Background Enriched-Germanium Detector Array for Fundamental Physics Measurements T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42491518; 5438233 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Detwiler, Jason Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42491518?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=MAJORANA%3A+An+Ultra-Low+Background+Enriched-Germanium+Detector+Array+for+Fundamental+Physics+Measurements&rft.au=Detwiler%2C+Jason&rft.aulast=Detwiler&rft.aufirst=Jason&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Spectroscopy of the Heaviest Elements T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42489506; 5438224 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Clark, Roderick Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - Spectroscopy KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42489506?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=Spectroscopy+of+the+Heaviest+Elements&rft.au=Clark%2C+Roderick&rft.aulast=Clark&rft.aufirst=Roderick&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Test of Ideal Hydrodynamical Limit at RHIC T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42487912; 5438259 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Masui, Hiroshi Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42487912?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=Test+of+Ideal+Hydrodynamical+Limit+at+RHIC&rft.au=Masui%2C+Hiroshi&rft.aulast=Masui&rft.aufirst=Hiroshi&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Collective Dynamics in High-Energy Nuclear Collisions at RHIC T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42486355; 5438867 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Xu, Nu Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42486355?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=Collective+Dynamics+in+High-Energy+Nuclear+Collisions+at+RHIC&rft.au=Xu%2C+Nu&rft.aulast=Xu&rft.aufirst=Nu&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Lifetime measurements in 16C and 20C T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42484100; 5438713 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Petri, Marina Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42484100?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=Lifetime+measurements+in+16C+and+20C&rft.au=Petri%2C+Marina&rft.aulast=Petri&rft.aufirst=Marina&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - J/psi production in minimum bias Au+Au and Cu+Cu collisions at square root (sNN)=200 GeV at STAR T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42481799; 5438994 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Kikola, Daniel Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - Photosystem I KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42481799?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=J%2Fpsi+production+in+minimum+bias+Au%2BAu+and+Cu%2BCu+collisions+at+square+root+%28sNN%29%3D200+GeV+at+STAR&rft.au=Kikola%2C+Daniel&rft.aulast=Kikola&rft.aufirst=Daniel&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - J/psi production in minimum-bias d+Au collisions at square root (sNN) = 200 GeV in STAR T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42480502; 5438993 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Powell, Christopher Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - Photosystem I KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42480502?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=J%2Fpsi+production+in+minimum-bias+d%2BAu+collisions+at+square+root+%28sNN%29+%3D+200+GeV+in+STAR&rft.au=Powell%2C+Christopher&rft.aulast=Powell&rft.aufirst=Christopher&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Muons with High Transverse Momentum in IceCube T2 - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AN - 42479836; 5438996 JF - Third Joint Meeting of the Nuclear Physics Divisions of the American Physical Society and The Physical Society of Japan (JPS/DNP 2009) AU - Gerhardt, Lisa Y1 - 2009/10/13/ PY - 2009 DA - 2009 Oct 13 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42479836?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.atitle=Muons+with+High+Transverse+Momentum+in+IceCube&rft.au=Gerhardt%2C+Lisa&rft.aulast=Gerhardt&rft.aufirst=Lisa&rft.date=2009-10-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Third+Joint+Meeting+of+the+Nuclear+Physics+Divisions+of+the+American+Physical+Society+and+The+Physical+Society+of+Japan+%28JPS%2FDNP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://meetings.aps.org/Meeting/HAW09/sessionindex2 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Studying the human gut microbiome (in health and disease) using a variety of ''omics'' approaches T2 - 4th European Conference on Prokaryotic Genomics (ProkaGENOMICS 2009) AN - 42420621; 5405836 JF - 4th European Conference on Prokaryotic Genomics (ProkaGENOMICS 2009) AU - Jansson, J Y1 - 2009/10/04/ PY - 2009 DA - 2009 Oct 04 KW - Digestive tract KW - Public health KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42420621?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Supremacy+of+Chinese+Is+no+Sure+Thing&rft.au=Stelzer%2C+Irwin&rft.aulast=Stelzer&rft.aufirst=Irwin&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - https://www.prokagenomics.org/programme_20091004.php?navId=03 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Predicting Relative-Permeability Curves Directly From Rock Images T2 - 2009 Annual Technical Conference and Exhibition (ANTEC 2009) AN - 42411652; 5396311 JF - 2009 Annual Technical Conference and Exhibition (ANTEC 2009) AU - Silin, D AU - Patzek, T Y1 - 2009/10/04/ PY - 2009 DA - 2009 Oct 04 KW - U 5500:Geoscience UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42411652?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Annual+Technical+Conference+and+Exhibition+%28ANTEC+2009%29&rft.atitle=Predicting+Relative-Permeability+Curves+Directly+From+Rock+Images&rft.au=Silin%2C+D%3BPatzek%2C+T&rft.aulast=Silin&rft.aufirst=D&rft.date=2009-10-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Annual+Technical+Conference+and+Exhibition+%28ANTEC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.spe.org/atce/2009/documents/Tech_prog.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Studies of the Mechanism of Lithium Diffusion in Graphitic Anodes T2 - 216th Meeting of the Electrochemical Society (216th ECS) AN - 42032560; 5497280 JF - 216th Meeting of the Electrochemical Society (216th ECS) AU - Hardwick, L AU - Sethuraman, V AU - Srinivasan, V AU - Kostecki, R Y1 - 2009/10/04/ PY - 2009 DA - 2009 Oct 04 KW - Lithium KW - Diffusion KW - Anodes KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42032560?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=216th+Meeting+of+the+Electrochemical+Society+%28216th+ECS%29&rft.atitle=Studies+of+the+Mechanism+of+Lithium+Diffusion+in+Graphitic+Anodes&rft.au=Hardwick%2C+L%3BSethuraman%2C+V%3BSrinivasan%2C+V%3BKostecki%2C+R&rft.aulast=Hardwick&rft.aufirst=L&rft.date=2009-10-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=216th+Meeting+of+the+Electrochemical+Society+%28216th+ECS%29&rft.issn=&rft_id=info:doi/ L2 - http://www.electrochem.org/meetings/biannual/216/assets/216_mtg_progra m.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - New Binder Materials for Si Electrode T2 - 216th Meeting of the Electrochemical Society (216th ECS) AN - 42030075; 5498396 JF - 216th Meeting of the Electrochemical Society (216th ECS) AU - Liu, G AU - Xun, S AU - Zheng, H AU - Song, X AU - Battaglia, V Y1 - 2009/10/04/ PY - 2009 DA - 2009 Oct 04 KW - Electrodes KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42030075?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=216th+Meeting+of+the+Electrochemical+Society+%28216th+ECS%29&rft.atitle=New+Binder+Materials+for+Si+Electrode&rft.au=Liu%2C+G%3BXun%2C+S%3BZheng%2C+H%3BSong%2C+X%3BBattaglia%2C+V&rft.aulast=Liu&rft.aufirst=G&rft.date=2009-10-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=216th+Meeting+of+the+Electrochemical+Society+%28216th+ECS%29&rft.issn=&rft_id=info:doi/ L2 - http://www.electrochem.org/meetings/biannual/216/assets/216_mtg_progra m.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Impact of Diffusion-Media Wettability on Polymer-Electrolyte-Fuel-Cell Performance T2 - 216th Meeting of the Electrochemical Society (216th ECS) AN - 42029967; 5499229 JF - 216th Meeting of the Electrochemical Society (216th ECS) AU - Weber, A AU - Mukundan, R AU - Hussey, D AU - Jacobson, D AU - Arif, M AU - Borup, R Y1 - 2009/10/04/ PY - 2009 DA - 2009 Oct 04 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42029967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Photos+of+the+Day%3A+Nov.+8%3B+In+today%27s+pictures%2C+a+boy+gets+the+spider+treatment+in+England%2C+a+Palestinian+works+at+a+charcoal+plant%2C+Poland%27s+first+openly+gay+and+first+transsexual+lawmakers+attend+parliament%2C+and+more.&rft.au=Anonymous&rft.aulast=Anonymous&rft.aufirst=&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.electrochem.org/meetings/biannual/216/assets/216_mtg_progra m.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Solid Solution Behavior in LixMnPO4 T2 - 216th Meeting of the Electrochemical Society (216th ECS) AN - 42023593; 5496699 JF - 216th Meeting of the Electrochemical Society (216th ECS) AU - Chen, G AU - Richardson, T Y1 - 2009/10/04/ PY - 2009 DA - 2009 Oct 04 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42023593?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=216th+Meeting+of+the+Electrochemical+Society+%28216th+ECS%29&rft.atitle=Solid+Solution+Behavior+in+LixMnPO4&rft.au=Chen%2C+G%3BRichardson%2C+T&rft.aulast=Chen&rft.aufirst=G&rft.date=2009-10-04&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=21st+International+Conference+for+High+Performance+Computing%2C+Networking%2C+Storage+and+Analysis+%28SC+09%29&rft.issn=&rft_id=info:doi/ L2 - http://www.electrochem.org/meetings/biannual/216/assets/216_mtg_progra m.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - (super 238) U/ (super 235) U isotope ratios as tracers of uranium reduction; in situ experiments at Rifle, CO AN - 881451168; 2011-062110 AB - Assessing the efficacy of groundwater remediation by measuring temporal changes in contaminant concentration can be complicated by issues of dilution and sorption. To avoid such problems, isotopic ratio measurements of redox active metals have been used to quantify reduction and extent of immobilization where one redox state is less mobile than another. Here we present new (super 238) U/ (super 235) U results for groundwater samples from Rifle, CO, in a near-surface aquifer contaminated by earlier uranium milling operations. The U.S. Department of Energy removed the tailings pile and the upper few meters of alluvial sediment. However, residual uranium contamination remains in the groundwater. This contaminated alluvial aquifer provides an excellent natural laboratory for studying in situ bioremediation of uranium (e.g. Anderson, et al., 2003; AEM). The Winchester Experiment conducted at the Rifle Integrated Field Research Challenge Site investigated uranium reduction accompanying the injection of acetate-amended groundwater. This carbon-rich groundwater stimulates the growth of native iron-reducing bacteria, such as Geobacter sp., which reduce mobile U(VI) to immobile U(IV), enabling the in situ sequestration of aqueous uranium. We have analyzed a set of groundwater samples from the injection experiment, as well as natural background samples for (super 238) U/ (super 235) U by MC-ICP-MS using double spike methods. We observe that (super 238) U/ (super 235) U decreases steadily with time as injection and uranium reduction proceeds. As uranium concentrations decrease from nearly equal 200mu g/L to nearly equal 20mu g/L, we observe a systematic change to lower (super 238) U/ (super 235) U of nearly equal 1.00ppm. This change to lower (super 238) U/ (super 235) U is complimentary to that observed in both reduced sediments (Weyer, et al., 2008; GCA) and reduced uranium ore deposits (Bopp, et al., 2009; Geology): of opposite sense because we test the fluid rather than the sediments, and similar magnitude. Thus, measurements of (super 238) U/ (super 235) U provide a method for assessing extent of uranium reduction, which is free of the problems that hamper concentration measurements. This study provides the first demonstration of (super 238) U/ (super 235) U ratios as a tracer of the reduction and immobilization of uranium at the field scale. JF - Abstracts with Programs - Geological Society of America AU - Bopp, Charles John, IV AU - Lundstrom, Craig C AU - Johnson, Thomas M AU - Williams, Kenneth H AU - Wilkins, Michael J AU - N'Guessan, A Lucie AU - Long, Philip E AU - Anonymous Y1 - 2009/10// PY - 2009 DA - October 2009 SP - 683 PB - Geological Society of America (GSA), Boulder, CO VL - 41 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - Rifle Integrated Field Research Challenge Site KW - experimental studies KW - Garfield County Colorado KW - isotopes KW - pollutants KW - isotope ratios KW - pollution KW - remediation KW - ground water KW - Rifle Colorado KW - radioactive isotopes KW - metals KW - tracers KW - uranium KW - U-238/U-235 KW - Colorado KW - water pollution KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881451168?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=%28super+238%29+U%2F+%28super+235%29+U+isotope+ratios+as+tracers+of+uranium+reduction%3B+in+situ+experiments+at+Rifle%2C+CO&rft.au=Bopp%2C+Charles+John%2C+IV%3BLundstrom%2C+Craig+C%3BJohnson%2C+Thomas+M%3BWilliams%2C+Kenneth+H%3BWilkins%2C+Michael+J%3BN%27Guessan%2C+A+Lucie%3BLong%2C+Philip+E%3BAnonymous&rft.aulast=Bopp&rft.aufirst=Charles&rft.date=2009-10-01&rft.volume=41&rft.issue=7&rft.spage=683&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2009 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; Colorado; experimental studies; Garfield County Colorado; ground water; isotope ratios; isotopes; metals; pollutants; pollution; radioactive isotopes; remediation; Rifle Colorado; Rifle Integrated Field Research Challenge Site; tracers; U-238/U-235; United States; uranium; water pollution ER - TY - JOUR T1 - Uranium immobilization by the activities of microbial phosphatases AN - 881449959; 2011-062072 AB - The U.S. Department of Energy is tasked with the remediation of over 120 sites with subsurface metal and radionuclide contaminates resulting from nuclear weapons research activities. We previously demonstrated phosphatase activities of subsurface microbes, isolated from contaminated Oak Ridge, TN FRC (ORFRC) subsurface soils, released phosphate extracellularly during growth in the pH range 5-7. Phosphate liberated from glycerol-3-phosphate, provided as the sole carbon and phosphorus (P) source, was sufficient to precipitate >95% of uranium [U(VI)] as low solubility uranium-phosphate minerals. Presently, the substrate and pH range of phosphatase enzymes harbored by subsurface microbial communities exposed to long-term metal and radionuclide contamination is unknown, and their potential role in immobilizing metals and radionuclides is poorly characterized. This project continues pure culture studies, using ORFRC Rahnella sp. Y9602, to investigate the use of phytic acid as a potential substrate for subsurface remediation. Preliminary results obtained after 25-day incubations indicate the Rahnella sp. is capable of liberating 1.8 mM and 21 mM P when grown at pH 7 and pH 5.5, respectively. We have also begun mixed microbial community analyses of ORFRC soil slurries supplemented with glycerol-2-phosphate (G2P) to determine if microbial phosphatase activity present in subsurface communities can liberate sufficient phosphate to promote the precipitation of U(VI) under both oxic and anoxic growth conditions at pH 5.5 or pH 6.8. Oxic slurry incubations demonstrate that organophosphate hydrolysis rates are greater at low pH. Anoxic soil slurry incubations initiated with 10 mM G2P and 15 mM nitrate amendments under acidic anoxic conditions reveal denitrifying and organophosphate hydrolyzing activities. Total DNA extractions from soil slurry incubations are being analyzed via high-density oligonucleotide microarray. Preliminary data suggest that under oxic conditions, the microbial community structure is enriched in proteobacterial taxa at low pH when compared to the diversity of unamended soils. By using culture-dependent and -independent approaches, we aim to identify molecular mechanisms and microbial community members optimized for metal and uranium remediation of subsurface environments. JF - Abstracts with Programs - Geological Society of America AU - Martinez, Robert J AU - Salome, Kathleen AU - Wu, Cindy AU - Hazen, Terry C AU - Andersen, Gary L AU - Taillefert, Martial AU - Sobecky, Patricia A AU - Anonymous Y1 - 2009/10// PY - 2009 DA - October 2009 SP - 676 PB - Geological Society of America (GSA), Boulder, CO VL - 41 IS - 7 SN - 0016-7592, 0016-7592 KW - United States KW - soils KW - Oak Ridge National Laboratory KW - bioremediation KW - remediation KW - radioactive waste KW - metals KW - bacteria KW - Tennessee KW - Anderson County Tennessee KW - uranium KW - waste disposal KW - geochemistry KW - actinides KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/881449959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Uranium+immobilization+by+the+activities+of+microbial+phosphatases&rft.au=Martinez%2C+Robert+J%3BSalome%2C+Kathleen%3BWu%2C+Cindy%3BHazen%2C+Terry+C%3BAndersen%2C+Gary+L%3BTaillefert%2C+Martial%3BSobecky%2C+Patricia+A%3BAnonymous&rft.aulast=Martinez&rft.aufirst=Robert&rft.date=2009-10-01&rft.volume=41&rft.issue=7&rft.spage=676&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2009 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - actinides; Anderson County Tennessee; bacteria; bioremediation; geochemistry; metals; Oak Ridge National Laboratory; radioactive waste; remediation; soils; Tennessee; United States; uranium; waste disposal ER - TY - JOUR T1 - Ultrafast time-resolved X-ray absorption measurements of the reductive dissolution of iron oxide nanoparticles AN - 815954093; 2011-000323 AB - Reactions that occur on timescales of less than one millionth of a second are central to biogeochemical processes that shape the Earth's surface. In particular, the reduction of Fe(III) is one of the most important chemical changes that takes place in the development of anaerobic soils and sediments, and the reductive dissolution of iron-bearing minerals by microbes plays a critical role in this process. Despite its importance in biogeochemistry, many questions remain about the mechanism of this electron transfer reaction, in part because the speed of the fundamental chemical steps renders them inaccessible to conventional study. Ultrafast time-resolved x-ray spectroscopy is a technique that can overcome this limitation and measure changes in oxidation state and structure occurring during chemical reactions that can be initiated by a fast laser pulse. We use this approach with approximately 100 ps resolution to monitor the speciation of Fe atoms in maghemite nanoparticles following photo-induced electron transfer from a surface-bound photoactive dye molecule. Magnetite nanoparticles, synthesized by co-precipitation of Fe(II) and Fe(III) in basic aqueous solution, were oxidized by O (sub 2) to give maghemite particles 2-3 nm in diameter (by XRD). UV/vis absorption and fluorescence spectroscopy showed that the dye, 2,7-dichlorofluorescein, binds strongly to the particle surface and that its emission is quenched fully when bound. Under steady-state photoexcitation, dye-sensitized particles evolved Fe (super 2+) (aq) over time, indicating successful electron transfer from sensitizer to particle, followed by reductive dissolution. Pump-probe X-ray absorption spectroscopy measurements at the Fe K edge, using a free jet of a deoxygenated aqueous suspension of dye-sensitized maghemite, showed the transient formation of a reduced iron species following laser excitation. No transient species were observed in control experiments using unsensitized nanoparticles. These data represent the first direct real-time observation of the dynamics of ferrous ion formation and subsequent re-oxidation or dissolution in iron oxide. JF - Abstracts with Programs - Geological Society of America AU - Katz, Jordan E AU - Gilbert, Benjamin AU - Zhang, Xiaoyi AU - Attenkofer, Klaus AU - Banfield, Jill F AU - Falcone, Roger AU - Waychunas, Glenn A AU - Anonymous Y1 - 2009/10// PY - 2009 DA - October 2009 SP - 235 PB - Geological Society of America (GSA), Boulder, CO VL - 41 IS - 7 SN - 0016-7592, 0016-7592 KW - processes KW - iron oxides KW - biochemistry KW - phase transitions KW - solution KW - X-ray spectra KW - iron KW - measurement KW - ferric iron KW - absorption KW - metals KW - oxides KW - spectra KW - nanoparticles KW - magnetite KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/815954093?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Ultrafast+time-resolved+X-ray+absorption+measurements+of+the+reductive+dissolution+of+iron+oxide+nanoparticles&rft.au=Katz%2C+Jordan+E%3BGilbert%2C+Benjamin%3BZhang%2C+Xiaoyi%3BAttenkofer%2C+Klaus%3BBanfield%2C+Jill+F%3BFalcone%2C+Roger%3BWaychunas%2C+Glenn+A%3BAnonymous&rft.aulast=Katz&rft.aufirst=Jordan&rft.date=2009-10-01&rft.volume=41&rft.issue=7&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2009 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - absorption; biochemistry; ferric iron; iron; iron oxides; magnetite; measurement; metals; nanoparticles; oxides; phase transitions; processes; solution; spectra; X-ray spectra ER - TY - JOUR T1 - Effects of nanoparticle aggregation on metal uptake, retention, and speciation AN - 815953120; 2011-000326 AB - Iron oxyhydroxide nanoparticles play an important role in the mobility of aqueous metal species through both sorption and desorption processes. However, the natural and often rapid aggregation of such nanophases in aqueous systems can lead to changes in their structure, available surface area, porosity, and reactivity that may modify the mechanisms by which metal ions are retained and therefore the long-term potential of metal sequestration in the solid phase. Batch and spectroscopic methods were used to investigate the uptake, release, and speciation of metals onto and within nanoscale iron oxyhydroxides exposed to conditions which induce nanoparticle aggregation and growth. Aqueous Cu(II) or Zn(II) was added to a suspension of synthetic 5-nm iron oxyhydroxide nanoparticles aggregated through increases in pH, ionic strength, or temperature and allowed to adsorb for a period of 24 hours. A desorption step was then induced by lowering the pH back below the macroscopic absorption edge for the specific metal. TEM and BET surface area characterization was also conducted on the aggregates and control (unaggregated) nanoparticles prior to metal exposure. Analysis of filtered supernatants combined with EXAFS studies of the solid aggregate pastes suggest that the desorption step removes the weakly-held (i.e. surface-bound) metal fraction but retains strongly-held metals that appear to be more structurally incorporated within the nanoparticle aggregates. SAXS analysis of the aggregated nanoparticles also established that variable extents of aggregation based on aggregation method appear to correlate with the macroscopic uptake and desorption experiments. Results show the relative effects of different aggregation methods on metal uptake and subsequent release, with temperature/time most effective at retaining metals in the solid phase and pH-based aggregation less so, while ionic strength-based aggregation had little effect relative to unaggregated particles. These findings have implications for the removal of hazardous metals from the aqueous phase and the design of remediation strategies targeting contaminated environments such as mine-impacted regions. JF - Abstracts with Programs - Geological Society of America AU - Kim, Christopher S AU - Gilbert, Benjamin AU - Anonymous Y1 - 2009/10// PY - 2009 DA - October 2009 SP - 235 PB - Geological Society of America (GSA), Boulder, CO VL - 41 IS - 7 SN - 0016-7592, 0016-7592 KW - processes KW - sorption KW - metals KW - phase transitions KW - effects KW - spectra KW - nanoparticles KW - chemical fractionation KW - 17A:General geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/815953120?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+with+Programs+-+Geological+Society+of+America&rft.atitle=Effects+of+nanoparticle+aggregation+on+metal+uptake%2C+retention%2C+and+speciation&rft.au=Kim%2C+Christopher+S%3BGilbert%2C+Benjamin%3BAnonymous&rft.aulast=Kim&rft.aufirst=Christopher&rft.date=2009-10-01&rft.volume=41&rft.issue=7&rft.spage=235&rft.isbn=&rft.btitle=&rft.title=Abstracts+with+Programs+-+Geological+Society+of+America&rft.issn=00167592&rft_id=info:doi/ LA - English DB - GeoRef N1 - Conference title - Geological Society of America, 2009 annual meeting N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States N1 - Date revised - 2011-01-01 N1 - PubXState - CO N1 - Last updated - 2012-06-07 N1 - CODEN - GAAPBC N1 - SubjectsTermNotLitGenreText - chemical fractionation; effects; metals; nanoparticles; phase transitions; processes; sorption; spectra ER - TY - JOUR T1 - Nonlinear extensions of a fractal-multifractal approach for environmental modeling AN - 744611263; 12622562 AB - We present the extension of a deterministic fractal geometric procedure aimed at representing the complexity of patterns encountered in environmental applications. The procedure, which is based on transformations of multifractal distributions via fractal functions, is extended through the introduction of nonlinear perturbations in the generating iterated linear maps. We demonstrate, by means of various simulations based on changes in parameters, that the nonlinear perturbations generate yet a richer collection of interesting patterns, as reflected by their overall shapes and their statistical and multifractal properties. It is shown that the nonlinear extensions yield structures that closely resemble complex hydrologic spatio-temporal datasets, such as rainfall and runoff time series, and width-functions of river networks. The implications of this nonlinear approach for environmental modeling and prediction are discussed. JF - Stochastic Environmental Research and Risk Assessment AU - Cortis, Andrea AU - Puente, Carlos E AU - Sivakumar, Bellie AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA Y1 - 2009/10// PY - 2009 DA - Oct 2009 SP - 897 EP - 906 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 23 IS - 7 SN - 1436-3240, 1436-3240 KW - Risk Abstracts KW - Risk assessment KW - time series analysis KW - Rainfall KW - Simulation KW - R2 23050:Environment UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/744611263?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ariskabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Stochastic+Environmental+Research+and+Risk+Assessment&rft.atitle=Nonlinear+extensions+of+a+fractal-multifractal+approach+for+environmental+modeling&rft.au=Cortis%2C+Andrea%3BPuente%2C+Carlos+E%3BSivakumar%2C+Bellie&rft.aulast=Cortis&rft.aufirst=Andrea&rft.date=2009-10-01&rft.volume=23&rft.issue=7&rft.spage=897&rft.isbn=&rft.btitle=&rft.title=Stochastic+Environmental+Research+and+Risk+Assessment&rft.issn=14363240&rft_id=info:doi/10.1007%2Fs00477-008-0272-0 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-06-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Risk assessment; time series analysis; Rainfall; Simulation DO - http://dx.doi.org/10.1007/s00477-008-0272-0 ER - TY - JOUR T1 - Ultra-primitive interplanetary dust particles from the Comet 26P/Grigg-Skjellerup dust stream collection AN - 742906337; 2010-038748 AB - Cometary material and pristine interplanetary dust particles (IDPs) best resemble the unaltered components from which our solar system was built because they have remained largely unaltered in a cold undisturbed environment since accretion in the outer protoplanetary disk. IDPs might supply more primitive assemblages for laboratory analysis than Stardust samples from comet 81P/Wild 2 but their individual provenances are typically unknown. We speculate that some IDPs collected by NASA in April 2003 may be associated with comet 26P/Grigg-Skjellerup because their particularly pristine character coincides with the collection period that was predicted to show an enhanced flux of particles from this Jupiter-family comet. Some IDPs from this collection contain the most primitive assembly of interstellar matter found to date including an unusually high abundance of presolar grains and very isotopically anomalous and disordered organic matter as well as fine-grained carbonates and an amphibole associated with a GEMS-like object (glass with embedded metals and sulfides) that potentially imply formation in a nebular rather than planetary environment. The two most primitive IDPs may contain assemblages of molecular cloud material at the percent level which is supported by the presence of four rare (super 17) O-depleted presolar silicate grains possibly of supernova(e) origin within one nearly equal 70 mu m (super 2) -sized IDP and the close association of a Group 1 Mg-rich olivine from a low-mass red giant star with a carbonaceous nano-globule of potentially interstellar origin. Our study together with observations of comet 9P/Tempel 1 during the Deep Impact experiment and 81P/Wild 2 dust analyses reveal some compositional variations and many similarities among three Jupiter-family comets. Specifically carbonates and primitive organic matter or amorphous carbon were widespread in the comet-forming regions of the outer protoplanetary disk and not all comets contain as much inner solar system material as has been inferred for comet 81P/Wild 2. The bulk and hotspot hydrogen and nitrogen isotopic anomalies as well as the carbon Raman characteristics of the organic matter in IDPs and the most primitive meteorites are remarkably similar. This implies that the same mixture of molecular cloud material had been transported inward into the meteorite-forming regions of the solar system. JF - Earth and Planetary Science Letters AU - Busemann, Henner AU - Nguyen, Ann N AU - Cody, George D AU - Hoppe, Peter AU - Kilcoyne, A L David AU - Stroud, Rhonda M AU - Zega, Thomas J AU - Nittler, Larry R Y1 - 2009/10// PY - 2009 DA - October 2009 SP - 44 EP - 57 PB - Elsevier, Amsterdam VL - 288 IS - 1-2 SN - 0012-821X, 0012-821X KW - silicates KW - alteration KW - Grigg-Skjellerup Comet KW - oxygen KW - ion probe data KW - isotopes KW - mass spectra KW - olivine group KW - interplanetary dust KW - stable isotopes KW - nitrogen KW - XANES spectra KW - presolar grains KW - transport KW - carbon KW - olivine KW - orthosilicates KW - spectra KW - O-17/O-16 KW - water KW - solar system KW - N-15/N-14 KW - amorphous materials KW - isotope ratios KW - supernovas KW - interstellar medium KW - X-ray spectra KW - TEM data KW - solar nebula KW - nesosilicates KW - organic compounds KW - Raman spectra KW - comets KW - molecular clouds KW - D/H KW - stars KW - hydrogen KW - carbonates KW - SEM data KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/742906337?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Roles+Reversed+at+Libyan+Jail+Protest&rft.au=Coker%2C+Margaret&rft.aulast=Coker&rft.aufirst=Margaret&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.sciencedirect.com/science/journal/0012821X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 94 N1 - Document feature - illus. incl. 2 tables N1 - SuppNotes - Supplemental information/data is available in the online version of this article N1 - Last updated - 2012-06-07 N1 - CODEN - EPSLA2 N1 - SubjectsTermNotLitGenreText - alteration; amorphous materials; carbon; carbonates; comets; D/H; Grigg-Skjellerup Comet; hydrogen; interplanetary dust; interstellar medium; ion probe data; isotope ratios; isotopes; mass spectra; molecular clouds; N-15/N-14; nesosilicates; nitrogen; O-17/O-16; olivine; olivine group; organic compounds; orthosilicates; oxygen; presolar grains; Raman spectra; SEM data; silicates; solar nebula; solar system; spectra; stable isotopes; stars; supernovas; TEM data; transport; water; X-ray spectra; XANES spectra DO - http://dx.doi.org/10.1016/j.epsl.2009.09.007 ER - TY - JOUR T1 - Incorporation of oxidized uranium into Fe (hydr)oxides during Fe(II) catalyzed remineralization. AN - 67695326; 19848151 AB - The form of solid phase U after Fe(II) induced anaerobic remineralization of ferrihydrite in the presence of aqueous and absorbed U(VI) was investigated under both abiotic batch and biotic flow conditions. Experiments were conducted with synthetic ground waters containing 0.168 mM U(VI), 3.8 mM carbonate, and 3.0 mM Ca2+. In spite of the high solubility of U(VI) under these conditions, appreciable removal of U(VI) from solution was observed in both the abiotic and biotic systems. The majority of the removed U was determined to be substituted as oxidized U (U(VI) or U(V)) into the octahedral position of the goethite and magnetite formed during ferrihydrite remineralization. It is estimated that between 3 and 6% of octahedral Fe(III) centers in the new Fe minerals were occupied by U. This site specific substitution is distinct from the nonspecific U coprecipitation processes in which uranyl compounds, e.g., uranyl hydroxide or carbonate, are entrapped within newly formed Fe oxides. The prevalence of site specific U incorporation under both abiotic and biotic conditions and the fact that the produced solids were shown to be resistant to both extraction (30 mM KHCO3) and oxidation (air for 5 days) suggest the potential importance of sequestration in Fe oxides as a stable and immobile form of U in the environment. JF - Environmental science & technology AU - Nico, Peter S AU - Stewart, Brandy D AU - Fendorf, Scott AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. psnico@lbl.gov Y1 - 2009/10/01/ PY - 2009 DA - 2009 Oct 01 SP - 7391 EP - 7396 VL - 43 IS - 19 SN - 0013-936X, 0013-936X KW - Environmental Pollutants KW - 0 KW - Ferric Compounds KW - Uranium Compounds KW - ferric hydroxide KW - 2UA751211N KW - Uranium KW - 4OC371KSTK KW - Index Medicus KW - Oxidation-Reduction KW - Uranium Compounds -- chemistry KW - Catalysis KW - Ferric Compounds -- chemistry KW - Uranium -- chemistry KW - Environmental Pollutants -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67695326?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Incorporation+of+oxidized+uranium+into+Fe+%28hydr%29oxides+during+Fe%28II%29+catalyzed+remineralization.&rft.au=Nico%2C+Peter+S%3BStewart%2C+Brandy+D%3BFendorf%2C+Scott&rft.aulast=Nico&rft.aufirst=Peter&rft.date=2009-10-01&rft.volume=43&rft.issue=19&rft.spage=7391&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-11-10 N1 - Date created - 2009-10-23 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Modeling non-steady state radioisotope transport in the vadose zone; a case study using uranium isotopes at Pena Blanca, Mexico AN - 50058998; 2010-032337 AB - Current models using U- and Th-series disequilibria to study radioisotope transport in groundwater systems mostly consider a steady-state situation. These models have limited applicability to the vadose zone (UZ) where the concentration and migratory behavior of radioisotopes in fluid are often transitory. We present here, as a first attempt of its kind, a model simulating the non-steady state, intermittent fluid transport in vadose layers. It provides quantitative constraints on in-situ migration of dissolved and colloidal radioisotopes in terms of retardation factor and rock-water interaction (or water transit) time. For uranium, the simulation predicts that intermittent flushing in the UZ leads to a linear relationship between reciprocal U concentration and (super 234) U/ (super 238) U ratio in percolating waters, with the intercept and slope bearing information on the rates of dissolution and alpha -recoil of U isotopes, respectively. The general validity of the model appears to be borne out by the measurement of uranium isotopes in UZ waters collected at various times over a period during 1995-2006 from a site in the Pena Blanca mining district, Mexico, where the Nopal I uranium deposit is located. Enhanced (super 234) U/ (super 238) U ratios in vadose-zone waters resulting from lengthened non-flushing time as prescribed by the model provide an interpretative basis for using (super 234) U/ (super 238) U in cave calcites to reconstruct the regional changes in hydrology and climate. We also provide a theoretical account of the model's potential applications using radium isotopes. JF - Geochimica et Cosmochimica Acta AU - Ku, T L AU - Luo, S AU - Goldstein, S J AU - Murrell, M T AU - Chu, W L AU - Dobson, P F Y1 - 2009/10// PY - 2009 DA - October 2009 SP - 6052 EP - 6064 PB - Elsevier, New York, NY VL - 73 IS - 20 SN - 0016-7037, 0016-7037 KW - solute transport KW - isotopes KW - unsaturated zone KW - Chihuahua Mexico KW - environmental analysis KW - uranium disequilibrium KW - ground water KW - radioactive isotopes KW - Nopal Deposit KW - water pollution KW - geochemistry KW - hydrology KW - acid mine drainage KW - pollutants KW - isotope ratios KW - pollution KW - Blanca mining district KW - hydrochemistry KW - models KW - case studies KW - uranium ores KW - Pena Blanca Mexico KW - Mexico KW - metals KW - metal ores KW - uranium KW - U-238/U-234 KW - actinides KW - 02D:Isotope geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50058998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geochimica+et+Cosmochimica+Acta&rft.atitle=Modeling+non-steady+state+radioisotope+transport+in+the+vadose+zone%3B+a+case+study+using+uranium+isotopes+at+Pena+Blanca%2C+Mexico&rft.au=Ku%2C+T+L%3BLuo%2C+S%3BGoldstein%2C+S+J%3BMurrell%2C+M+T%3BChu%2C+W+L%3BDobson%2C+P+F&rft.aulast=Ku&rft.aufirst=T&rft.date=2009-10-01&rft.volume=73&rft.issue=20&rft.spage=6052&rft.isbn=&rft.btitle=&rft.title=Geochimica+et+Cosmochimica+Acta&rft.issn=00167037&rft_id=info:doi/10.1016%2Fj.gca.2009.07.011 L2 - http://www.sciencedirect.com/science/journal/00167037 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - Number of references - 27 N1 - PubXState - NY N1 - Document feature - illus. incl. 1 table, sketch maps N1 - SuppNotes - Includes appendices N1 - Last updated - 2012-06-07 N1 - CODEN - GCACAK N1 - SubjectsTermNotLitGenreText - acid mine drainage; actinides; Blanca mining district; case studies; Chihuahua Mexico; environmental analysis; geochemistry; ground water; hydrochemistry; hydrology; isotope ratios; isotopes; metal ores; metals; Mexico; models; Nopal Deposit; Pena Blanca Mexico; pollutants; pollution; radioactive isotopes; solute transport; U-238/U-234; unsaturated zone; uranium; uranium disequilibrium; uranium ores; water pollution DO - http://dx.doi.org/10.1016/j.gca.2009.07.011 ER - TY - JOUR T1 - A test of a physically-based strong ground motion prediction methodology with the 26 September 1997, M (sub w) =6.0 Colfiorito (Umbria-Marche sequence), Italy earthquake AN - 50056579; 2010-032496 AB - We test the physically-based ground motion hazard prediction methodology of Hutchings et al. [Hutchings, L., Ioannidou, E., Kalogeras, I., Voulgaris, N., Savy, J., Foxall, W., Scognamiglio, L., and Stavrakakis, G., (2007). A physically-based strong ground motion prediction methodology; Application to PSHA and the 1999 M=6.0 Athens Earthquake. Geophys. J. Int. 168, 569-680.] through an a posteriori prediction of the 26 September 1997, M (sub w) 6.0 Colfiorito (Umbria-Marche, Italy) earthquake at four stations. By "physically-based" we refer to ground motion synthesized with quasi-dynamic rupture models derived from physics and an understanding of the earthquake process. We test five hypotheses proposed by Hutchings et al. [Hutchings, L., Ioannidou, E., Kalogeras, I., Voulgaris, N., Savy, J., Foxall, W., Scognamiglio, L., and Stavrakakis, G., (2007). A physically-based strong ground motion prediction methodology; Application to PSHA and the 1999 M=6.0 Athens Earthquake. Geophys. J. Int. 168, 569-680.] that support application of the methodology to physically-based probabilistic seismic hazard or risk analysis. We use two methods to test the hypotheses. First, we test whether observed records fall within the 68% log-normal confidence interval for the distribution of absolute acceleration response (AAR), pseudo velocity response (PSV), and Fourier amplitude spectra (FFT) created by a suite of source models. We also used the goodness of fit between synthesized seismograms to verify whether at least one of the source models in the suite generates seismograms that match the observed waveforms, and if good fits to seismograms are due to source models that are close to what is actually known about the Colfiorito earthquake. We tested the hypotheses with a range of source parameters proposed by Hutchings et al. [Hutchings, L., Ioannidou, E., Kalogeras, I., Voulgaris, N., Savy, J., Foxall, W., Scognamiglio, L., and Stavrakakis, G., (2007). A physically-based strong ground motion prediction methodology; Application to PSHA and the 1999 M=6.0 Athens Earthquake. Geophys. J. Int. 168, 569-680.]. We synthesized records from 100 rupture scenarios that were generated by a Monte Carlo selection of parameters within the range. This range was based upon having some prior knowledge of where the earthquake would occur. Observed values of AAR, PSV and FFT fit within the 68% confidence interval for all four stations, and one of the models generated seismograms that had a good fit compared to the observations. Moreover, a strict test for validating a physically-based ground motion hazard prediction methodology is that as more information is known about the source, the uncertainty of the prediction should narrow, but still include the actual ground motion. Then, we tightened the source parameters to be centered about the known parameters for the Colfiorito earthquake, and allowed for less uncertainty in their values. We found this to be true for this test. While the 68% confidence interval narrowed from a factor of + or - about 4 to + or - about 2 for the distributions, observed values of AAR, PSV and FFT still fit within the distributions for all four stations. Ultimately, we have calculated peak ground velocity (PGV) and peak ground acceleration (PGA) for all the synthetic seismograms obtained from the computed scenarios, and we have found that they are comparable with the actual and with those from the attenuation relation. We conclude that the methodology of Hutchings et al. [Hutchings, L., Ioannidou, E., Kalogeras, I., Voulgaris, N., Savy, J., Foxall, W., Scognamiglio, L., and Stavrakakis, G., (2007). A physically-based strong ground motion prediction methodology; Application to PSHA and the 1999 M=6.0 Athens Earthquake. Geophys. J. Int. 168, 569-680.] is promising in giving ground motion hazard prediction estimates. JF - Tectonophysics AU - Scognamiglio, Laura AU - Hutchings, Lawrence A2 - Tondi, E. A2 - Chiaraluce, L. A2 - Roberts, G. Y1 - 2009/10// PY - 2009 DA - October 2009 SP - 145 EP - 158 PB - Elsevier, Amsterdam VL - 476 IS - 1-2 SN - 0040-1951, 0040-1951 KW - experimental studies KW - geologic hazards KW - Monte Carlo analysis KW - statistical analysis KW - acceleration KW - prediction KW - Green function KW - Europe KW - Marches Italy KW - Italy KW - Southern Europe KW - models KW - rupture KW - strong motion KW - Colfiorito Italy KW - seismic risk KW - ground motion KW - Umbria-Marche earthquakes 1997 KW - testing KW - risk assessment KW - Umbria Italy KW - earthquakes KW - 19:Seismology KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50056579?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Tectonophysics&rft.atitle=A+test+of+a+physically-based+strong+ground+motion+prediction+methodology+with+the+26+September+1997%2C+M+%28sub+w%29+%3D6.0+Colfiorito+%28Umbria-Marche+sequence%29%2C+Italy+earthquake&rft.au=Scognamiglio%2C+Laura%3BHutchings%2C+Lawrence&rft.aulast=Scognamiglio&rft.aufirst=Laura&rft.date=2009-10-01&rft.volume=476&rft.issue=1-2&rft.spage=145&rft.isbn=&rft.btitle=&rft.title=Tectonophysics&rft.issn=00401951&rft_id=info:doi/10.1016%2Fj.tecto.2009.05.024 L2 - http://www.sciencedirect.com/science/journal/00401951 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2010-01-01 N1 - SuppNotes - Based on Publisher-supplied data; include appendices N1 - Last updated - 2012-06-07 N1 - CODEN - TCTOAM N1 - SubjectsTermNotLitGenreText - acceleration; Colfiorito Italy; earthquakes; Europe; experimental studies; geologic hazards; Green function; ground motion; Italy; Marches Italy; models; Monte Carlo analysis; prediction; risk assessment; rupture; seismic risk; Southern Europe; statistical analysis; strong motion; testing; Umbria Italy; Umbria-Marche earthquakes 1997 DO - http://dx.doi.org/10.1016/j.tecto.2009.05.024 ER - TY - CPAPER T1 - Green Flash: Exascale Computing on a Petascale Power Budget T2 - The Fourth International Workshop on Automatic Performance Tuning (iWAPT2009) AN - 42489749; 5437601 JF - The Fourth International Workshop on Automatic Performance Tuning (iWAPT2009) AU - Shalf, John Y1 - 2009/10/01/ PY - 2009 DA - 2009 Oct 01 KW - Budgets KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42489749?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=The+Fourth+International+Workshop+on+Automatic+Performance+Tuning+%28iWAPT2009%29&rft.atitle=Green+Flash%3A+Exascale+Computing+on+a+Petascale+Power+Budget&rft.au=Shalf%2C+John&rft.aulast=Shalf&rft.aufirst=John&rft.date=2009-10-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+Fourth+International+Workshop+on+Automatic+Performance+Tuning+%28iWAPT2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.iwapt.org/program.html LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Short-Range Atmospheric Dispersion of Carbon Dioxide AN - 21274033; 11801196 AB - We present a numerical study aimed at quantifying the effects of concentration-dependent density on the spread of a seeping plume of CO sub(2) into the atmosphere such as could arise from a leaking geologic carbon sequestration site. Results of numerical models can be used to supplement field monitoring estimates of CO sub(2) seepage flux by modelling transport and dispersion between the source emission and concentration-measurement points. We focus on modelling CO sub(2) seepage dispersion over relatively short distances where density effects are likely to be important. We model dense gas dispersion using the steady-state Reynolds-averaged Navier-Stokes equations with density dependence in the gravity term. Results for a two-dimensional system show that a density dependence emerges at higher fluxes than prior estimates. A universal scaling relation is derived that allows estimation of the flux from concentrations measured downwind and vice versa. JF - Boundary-Layer Meteorology AU - Cortis, Andrea AU - Oldenburg, Curtis M AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, One Cyclotron rd., Berkeley, CA, USA Y1 - 2009/10// PY - 2009 DA - October 2009 SP - 17 EP - 34 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 133 IS - 1 SN - 0006-8314, 0006-8314 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Pollution Abstracts; Meteorological & Geoastrophysical Abstracts KW - Atmospheric pollution models KW - Density dependence KW - Seepage KW - Atmosphere KW - Carbon sequestration KW - Carbon KW - Numerical models KW - density dependence KW - Emissions KW - Geology KW - Meteorology KW - Seepages KW - Plumes KW - Carbon dioxide emissions KW - Wind KW - Atmospheric gases KW - Mathematical models KW - Biogeochemical cycle KW - Density KW - Model Studies KW - scaling KW - Atmospheric dispersion KW - Navier-Stokes equations KW - seepages KW - Monitoring KW - Dispersion models KW - Carbon dioxide KW - Fluctuations KW - Scaling KW - Gas dispersion KW - Carbon Dioxide KW - Dispersion KW - P 0000:AIR POLLUTION KW - SW 0810:General KW - Q2 09244:Air-sea coupling KW - M2 551.510.3/.4:Physical Properties/Composition (551.510.3/.4) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21274033?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Boundary-Layer+Meteorology&rft.atitle=Short-Range+Atmospheric+Dispersion+of+Carbon+Dioxide&rft.au=Cortis%2C+Andrea%3BOldenburg%2C+Curtis+M&rft.aulast=Cortis&rft.aufirst=Andrea&rft.date=2009-10-01&rft.volume=133&rft.issue=1&rft.spage=17&rft.isbn=&rft.btitle=&rft.title=Boundary-Layer+Meteorology&rft.issn=00068314&rft_id=info:doi/10.1007%2Fs10546-009-9418-y LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-01-01 N1 - Last updated - 2016-12-22 N1 - SubjectsTermNotLitGenreText - Atmospheric gases; Mathematical models; Navier-Stokes equations; Biogeochemical cycle; Density dependence; Meteorology; Seepages; Carbon dioxide; Dispersion; Atmospheric dispersion; Numerical models; Atmospheric pollution models; Dispersion models; Gas dispersion; Carbon dioxide emissions; Carbon sequestration; density dependence; Emissions; Geology; seepages; Atmosphere; Plumes; Wind; scaling; Carbon; Density; Monitoring; Seepage; Scaling; Fluctuations; Model Studies; Carbon Dioxide DO - http://dx.doi.org/10.1007/s10546-009-9418-y ER - TY - JOUR T1 - Mass spectrometry based metabolomics and enzymatic assays for functional genomics AN - 21197794; 11183917 AB - The exponential growth in the number of sequenced microorganisms versus the relative slow influx of direct biochemical characterization of microbes is limiting the utility of sequence information. High- throughput experimental approaches to functionally characterize microbial metabolism are urgently needed to leverage genome sequences for example: to understand host-microbe interactions, microbial communities, to utilize microbes for bioenergy, bioremediation, etc. Mass spectrometry based small molecule metabolite analysis is rapidly becoming a method of choice to meet these needs and enables multiple paths to discovering and validating the functional assignments. Approaches range from the targeted in vitro screening of small sets of metabolic transformations to define enzymatic activities to global metabolic profiling (metabolomics) to define metabolic pathways and gain insights into microbial responses to environmental and genetic perturbations. The combination of metabolite profiling with genome-scale models of metabolism and other -omic approaches provides opportunities to expand our understanding of microbial metabolic networks, stress responses, and to identify genes associated with specific enzymatic and regulatory activities. JF - Current Opinion in Microbiology AU - Baran, Richard AU - Reindl, Wolfgang AU - Northen, Trent R AD - Department of GTL Bioenergy and Structural Biology, Life Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA, TRNorthen@LBL.gov Y1 - 2009/10// PY - 2009 DA - Oct 2009 SP - 547 EP - 552 PB - Elsevier Science, The Boulevard Kidlington Oxford OX5 1GB UK VL - 12 IS - 5 SN - 1369-5274, 1369-5274 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts KW - Transformation KW - Bioremediation KW - metabolic networks KW - Stress KW - Metabolites KW - Mass spectroscopy KW - Models KW - Reviews KW - Metabolic pathways KW - Microorganisms KW - Enzymatic activity KW - genomics KW - metabolomics KW - G 07880:Human Genetics KW - A 01300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21197794?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologya&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Current+Opinion+in+Microbiology&rft.atitle=Mass+spectrometry+based+metabolomics+and+enzymatic+assays+for+functional+genomics&rft.au=Baran%2C+Richard%3BReindl%2C+Wolfgang%3BNorthen%2C+Trent+R&rft.aulast=Baran&rft.aufirst=Richard&rft.date=2009-10-01&rft.volume=12&rft.issue=5&rft.spage=547&rft.isbn=&rft.btitle=&rft.title=Current+Opinion+in+Microbiology&rft.issn=13695274&rft_id=info:doi/10.1016%2Fj.mib.2009.07.004 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Transformation; Bioremediation; metabolic networks; Stress; Metabolites; Mass spectroscopy; Models; Reviews; Microorganisms; Metabolic pathways; genomics; Enzymatic activity; metabolomics DO - http://dx.doi.org/10.1016/j.mib.2009.07.004 ER - TY - JOUR T1 - Interdomain Communication in the Mycobacterium tuberculosis Environmental Phosphatase Rv1364c AN - 21152340; 11260597 AB - An `environmental phosphatase- controls bacterial transcriptional responses through alternative sigma factor subunits of RNA polymerase and a partner switching mechanism has been proposed to mediate phosphatase regulation. In many bacteria, the environmental phosphatase and multiple regulators are encoded in separate genes whose products form transient complexes. In contrast, in the Mycobacterium tuberculosis homolog, Rv1364c, the phosphatase is fused to two characteristic regulatory modules with sequence similarities to anti-sigma factor kinases and anti-anti-sigma factor proteins. Here we exploit this fusion to explore interactions between the phosphatase and the regulatory domains. We show quantitatively that the anti-sigma factor kinase domain activates the phosphatase domain, the kinase-phosphatase fusion protein autophosphorylates in Escherichia coli, and phosphorylation is antagonized by the phosphatase activity. Small angle x-ray scattering defines solution structures consistent with the interdomain communication observed biochemically. Taken together, these data indicate that Rv1364c provides a single chain framework to understand the structure, function, and regulation of environmental phosphatases throughout the bacterial kingdom. JF - Journal of Biological Chemistry AU - Greenstein, Andrew E AU - Hammel, Michal AU - Cavazos, Alexandra AU - Alber, Tom AD - Department of Molecular and Cell Biology, University of California, Berkeley, California 94720-3220, the Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 Y1 - 2009/10// PY - 2009 DA - Oct 2009 PB - American Society for Biochemistry and Molecular Biology, 9650 Rockville Pike Bethesda MD 20814-3996 USA VL - 284 IS - 43 SN - 0021-9258, 0021-9258 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts B: Bacteriology KW - Data processing KW - Regulatory sequences KW - Communication KW - Transcription KW - DNA-directed RNA polymerase KW - Phosphorylation KW - Structure-function relationships KW - Escherichia coli KW - X-ray scattering KW - Fusion protein KW - Sigma factor KW - Mycobacterium tuberculosis KW - J 02310:Genetics & Taxonomy KW - A 01340:Antibiotics & Antimicrobials UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21152340?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Biological+Chemistry&rft.atitle=Interdomain+Communication+in+the+Mycobacterium+tuberculosis+Environmental+Phosphatase+Rv1364c&rft.au=Greenstein%2C+Andrew+E%3BHammel%2C+Michal%3BCavazos%2C+Alexandra%3BAlber%2C+Tom&rft.aulast=Greenstein&rft.aufirst=Andrew&rft.date=2009-10-01&rft.volume=284&rft.issue=43&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Journal+of+Biological+Chemistry&rft.issn=00219258&rft_id=info:doi/10.1074%2Fjbc.M109.056168 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - DNA-directed RNA polymerase; Data processing; Phosphorylation; Structure-function relationships; Regulatory sequences; X-ray scattering; Communication; Transcription; Fusion protein; Sigma factor; Escherichia coli; Mycobacterium tuberculosis DO - http://dx.doi.org/10.1074/jbc.M109.056168 ER - TY - JOUR T1 - Fine-root mortality rates in a temperate forest: estimates using radiocarbon data and numerical modeling AN - 21104097; 11095318 AB - Summary times We used an inadvertent whole-ecosystem 14C label at a temperate forest in Oak Ridge, Tennessee, USA to develop a model (Radix1.0) of fine-root dynamics. Radix simulates two live-root pools, two dead-root pools, non-normally distributed root mortality turnover times, a stored carbon (C) pool, and seasonal growth and respiration patterns. times We applied Radix to analyze measurements from two root size classes (< 0.5 and 0.5-2.0 mm diameter) and three soil-depth increments (O horizon, 0-15 cm and 30-60 cm). times Predicted live-root turnover times were < 1 yr and similar to 10 yr for short- and long-lived pools, respectively. Dead-root pools had decomposition turnover times of similar to 2 yr and similar to 10 yr. Realistic characterization of C flows through fine roots requires a model with two live fine-root populations, two dead fine-root pools, and root respiration. These are the first fine-root turnover time estimates that take into account respiration, storage, seasonal growth patterns, and non-normal turnover time distributions. times The presence of a root population with decadal turnover times implies a lower amount of belowground net primary production used to grow fine-root tissue than is currently predicted by models with a single annual turnover pool.New Phytologist (2009) 184: 387-398 JF - New Phytologist AU - Riley, W J AU - Gaudinski, J B AU - Torn AU - Joslin, J D AU - Hanson, P J AD - 1Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2009/10// PY - 2009 DA - Oct 2009 SP - 387 EP - 398 PB - Wiley-Blackwell, 111 River Street Hoboken NJ 07030-5774 USA VL - 184 IS - 2 SN - 0028-646X, 0028-646X KW - Ecology Abstracts KW - carbon cycling KW - carbon isotope KW - fine-root turnover time KW - Monte Carlo simulations KW - numerical model KW - radiocarbon KW - root model parameterization KW - roots KW - Mortality KW - Carbon KW - Data processing KW - Respiration KW - Roots KW - Forests KW - Primary production KW - Models KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21104097?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=New+Phytologist&rft.atitle=Fine-root+mortality+rates+in+a+temperate+forest%3A+estimates+using+radiocarbon+data+and+numerical+modeling&rft.au=Riley%2C+W+J%3BGaudinski%2C+J+B%3BTorn%3BJoslin%2C+J+D%3BHanson%2C+P+J&rft.aulast=Riley&rft.aufirst=W&rft.date=2009-10-01&rft.volume=184&rft.issue=2&rft.spage=387&rft.isbn=&rft.btitle=&rft.title=New+Phytologist&rft.issn=0028646X&rft_id=info:doi/10.1111%2Fj.1469-8137.2009.02980.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Mortality; Data processing; Carbon; Respiration; Forests; Roots; Primary production; Models DO - http://dx.doi.org/10.1111/j.1469-8137.2009.02980.x ER - TY - JOUR T1 - Mixed-mode fracture of human cortical bone AN - 20784722; 10824950 AB - Although the mode I (tensile opening) fracture toughness has been the focus of most fracture mechanics studies of human cortical bone, bones in vivo are invariably loaded multiaxially. Consequently, an understanding of mixed-mode fracture is necessary to determine whether a mode I fracture toughness test provides the appropriate information to accurately quantify fracture risk. In this study, we examine the mixed-mode fracture of human cortical bone by characterizing the crack-initiation fracture toughness in the transverse (breaking) orientation under combined mode I (tensile opening) plus mode II (shear) loading using samples loaded in symmetric and asymmetric four-point bending. Whereas in most structural materials, the fracture toughness is increased with increasing mode-mixity (i.e., where the shear loading component gets larger), in the transverse orientation of bone the situation is quite different. Indeed, the competition between the maximum applied mechanical mixed-mode driving force and the weakest microstructural paths in bone results in a behavior that is distinctly different to most homogeneous brittle materials. Specifically, in this orientation, the fracture toughness of bone is markedly decreased with increasing mode-mixity. JF - Biomaterials AU - Zimmermann, E A AU - Launey, ME AU - Barth, H D AU - Ritchie, RO AD - Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, roritchie@lbl.gov Y1 - 2009/10// PY - 2009 DA - Oct 2009 SP - 5877 EP - 5884 PB - Elsevier Science, The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl] VL - 30 IS - 29 SN - 0142-9612, 0142-9612 KW - Calcium & Calcified Tissue Abstracts; Biotechnology and Bioengineering Abstracts KW - Risk assessment KW - Loading KW - Bone (cortical) KW - Fractures KW - Competition KW - Mechanical properties KW - W 30920:Tissue Engineering KW - T 2025:Bone and Bone Diseases UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20784722?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Biomaterials&rft.atitle=Mixed-mode+fracture+of+human+cortical+bone&rft.au=Zimmermann%2C+E+A%3BLauney%2C+ME%3BBarth%2C+H+D%3BRitchie%2C+RO&rft.aulast=Zimmermann&rft.aufirst=E&rft.date=2009-10-01&rft.volume=30&rft.issue=29&rft.spage=5877&rft.isbn=&rft.btitle=&rft.title=Biomaterials&rft.issn=01429612&rft_id=info:doi/10.1016%2Fj.biomaterials.2009.06.017 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Risk assessment; Loading; Bone (cortical); Fractures; Competition; Mechanical properties DO - http://dx.doi.org/10.1016/j.biomaterials.2009.06.017 ER - TY - CPAPER T1 - Financial Implications of Using Shareholder Incentives and Decoupling Mechanisms to Contribute in the Achievement of a Federal Renewable Electricity Standard T2 - 5th National Conference on Energy Efficiency as a Resource AN - 42488695; 5436881 JF - 5th National Conference on Energy Efficiency as a Resource AU - Cappers, Peter Y1 - 2009/09/27/ PY - 2009 DA - 2009 Sep 27 KW - Electricity KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42488695?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=5th+National+Conference+on+Energy+Efficiency+as+a+Resource&rft.atitle=Financial+Implications+of+Using+Shareholder+Incentives+and+Decoupling+Mechanisms+to+Contribute+in+the+Achievement+of+a+Federal+Renewable+Electricity+Standard&rft.au=Cappers%2C+Peter&rft.aulast=Cappers&rft.aufirst=Peter&rft.date=2009-09-27&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=5th+National+Conference+on+Energy+Efficiency+as+a+Resource&rft.issn=&rft_id=info:doi/ L2 - http://www.aceee.org/conf/09ee/09Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The Shifting Landscape of Ratepayer-Funded Energy Efficiency in the U.S. T2 - 5th National Conference on Energy Efficiency as a Resource AN - 42487860; 5436909 JF - 5th National Conference on Energy Efficiency as a Resource AU - Goldman, Chuck Y1 - 2009/09/27/ PY - 2009 DA - 2009 Sep 27 KW - USA KW - Landscape KW - Energy efficiency KW - U 4300:Environmental Science UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42487860?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=5th+National+Conference+on+Energy+Efficiency+as+a+Resource&rft.atitle=The+Shifting+Landscape+of+Ratepayer-Funded+Energy+Efficiency+in+the+U.S.&rft.au=Goldman%2C+Chuck&rft.aulast=Goldman&rft.aufirst=Chuck&rft.date=2009-09-27&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Fourth+Asia-Pacific+Symposium+on+Radiochemistry+%28APSORC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.aceee.org/conf/09ee/09Program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - The effect of sudden source buoyancy flux increases on turbulent plumes AN - 21060327; 11010835 AB - Building upon the recent experimentally verified modelling of turbulent plumes which are subject to decreases in their source strength (Scase et al., J. Fluid Mech., vol. 563, 2006b, p. 443), we consider the complementary case where the plume's source strength is increased. We consider the effect of increasing the source strength of an established plume and we also compare time-dependent plume model predictions for the behaviour of a starting plume to those of Turner (J. Fluid Mech., vol. 13, 1962, p. 356). Unlike the decreasing source strength problems considered previously, the relevant solution to the time-dependent plume equations is not a simple similarity solution. However, scaling laws are demonstrated which are shown to be applicable across a large number of orders of magnitude of source strength increase. It is shown that an established plume that is subjected to an increase in its source strength supports a self-similar 'pulse' structure propagating upwards. For a point source plume, in pure plume balance, subjected to an increase in the source buoyancy flux F0, the rise height of this pulse in terms of time t scales as t3/4 while the vertical extent of the pulse scales as t1/4. The volume of the pulse is shown to scale as t9/4. For plumes in pure plume balance that emanate from a distributed source it is shown that the same scaling laws apply far from the source, demonstrating an analogous convergence to pure plume balance as that which is well known in steady plumes. These scaling law predictions are compared to implicit large eddy simulations of the buoyancy increase problem and are shown to be in good agreement. We also compare the predictions of the time-dependent model to a starting plume in the limit where the source buoyancy flux is discontinuously increased from zero. The conventional model for a starting plume is well approximated by a rising turbulent, entraining, buoyant vortex ring which is fed from below by a 'steady' plume. However, the time-dependent plume equations have been defined for top-hat profiles assuming only horizontal entrainment. Therefore, this system cannot model either the internal dynamics of the starting plume's head or the extra entrainment of ambient fluid into the head due to the turbulent boundary of the vortex ring-like cap. We show that the lack of entrainment of ambient fluid through the head of the starting plume means that the time-dependent plume equations overestimate the rise height of a starting plume with time. However, by modifying the entrainment coefficient appropriately, we see that realistic predictions consistent with experiment can be attained. JF - Journal of Fluid Mechanics AU - Scase, M M AU - Aspden, A J AU - Caulfield, C P AD - Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA, matthew.scase@nottingham.ac.uk Y1 - 2009/09/25/ PY - 2009 DA - 2009 Sep 25 SP - 137 EP - 169 PB - Cambridge University Press, The Edinburgh Building, Cambridge CB2 2RU UK VL - 635 SN - 0022-1120, 0022-1120 KW - Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Prediction KW - Entrainment KW - Vortexes KW - Plume models KW - Fluid mechanics KW - Vortex rings KW - Convergence KW - Plumes KW - Buoyancy KW - Marine KW - Mathematical models KW - Simulation KW - Oceanic eddies KW - Large eddy simulations KW - Buoyancy flux KW - Water pollution KW - Model Studies KW - Strength KW - Boundaries KW - Fluctuations KW - Scaling KW - Q2 09164:Ocean circulation and currents KW - SW 6020:Hydraulics KW - M2 551.511:Mechanics and Thermodynamics of the Atmosphere (551.511) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21060327?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Awaterresources&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Fluid+Mechanics&rft.atitle=The+effect+of+sudden+source+buoyancy+flux+increases+on+turbulent+plumes&rft.au=Scase%2C+M+M%3BAspden%2C+A+J%3BCaulfield%2C+C+P&rft.aulast=Scase&rft.aufirst=M&rft.date=2009-09-25&rft.volume=635&rft.issue=&rft.spage=137&rft.isbn=&rft.btitle=&rft.title=Journal+of+Fluid+Mechanics&rft.issn=00221120&rft_id=info:doi/10.1017%2FS002211200900740X LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Fluid mechanics; Mathematical models; Simulation; Oceanic eddies; Buoyancy flux; Water pollution; Plume models; Entrainment; Vortex rings; Convergence; Large eddy simulations; Vortexes; Buoyancy; Prediction; Strength; Boundaries; Scaling; Fluctuations; Plumes; Model Studies; Marine DO - http://dx.doi.org/10.1017/S002211200900740X ER - TY - CPAPER T1 - Cardiac Perfusion as a Function of Cardiac Hypertrophy Using MicroPET/CT Imaging of F-18-fluorodihydrorotenol T2 - 2009 World Molecular Imaging Congress (WMIC 2009) AN - 42459390; 5422819 JF - 2009 World Molecular Imaging Congress (WMIC 2009) AU - Gullberg, G AU - O'Neil, J AU - Janabi, M AU - Brennan, K AU - Wahnishe, H AU - Seo, Y AU - VanBrocklin, H Y1 - 2009/09/23/ PY - 2009 DA - 2009 Sep 23 KW - Heart KW - Perfusion KW - Hypertrophy KW - Computed tomography KW - Imaging techniques KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42459390?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aabiglobal&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Curbing+AIDS+Set+As+a+U.S.+Priority&rft.au=McKay%2C+Betsy&rft.aulast=McKay&rft.aufirst=Betsy&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://wmicmeeting.abstractcentral.com/itin.jsp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Longitudinal Evaluation of Metabolic Rates for Glucose and Fatty Acid in Normal and Spontaneously Hypertensive Rat Hearts with Dynamic MicroPET and MicroSPECT Imaging T2 - 2009 World Molecular Imaging Congress (WMIC 2009) AN - 42458228; 5422881 JF - 2009 World Molecular Imaging Congress (WMIC 2009) AU - Reutter, B AU - Huesman, R AU - Brennan, K AU - Boutchko, R AU - Hanrahan, S AU - Gullberg, G Y1 - 2009/09/23/ PY - 2009 DA - 2009 Sep 23 KW - Fatty acids KW - Imaging techniques KW - Heart KW - Glucose KW - Metabolic rate KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42458228?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+World+Molecular+Imaging+Congress+%28WMIC+2009%29&rft.atitle=Longitudinal+Evaluation+of+Metabolic+Rates+for+Glucose+and+Fatty+Acid+in+Normal+and+Spontaneously+Hypertensive+Rat+Hearts+with+Dynamic+MicroPET+and+MicroSPECT+Imaging&rft.au=Reutter%2C+B%3BHuesman%2C+R%3BBrennan%2C+K%3BBoutchko%2C+R%3BHanrahan%2C+S%3BGullberg%2C+G&rft.aulast=Reutter&rft.aufirst=B&rft.date=2009-09-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+World+Molecular+Imaging+Congress+%28WMIC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://wmicmeeting.abstractcentral.com/itin.jsp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Quantitative Molecular Imaging: Reconstruction, Partial Volume Effects, Normalization T2 - 2009 World Molecular Imaging Congress (WMIC 2009) AN - 42457950; 5422761 JF - 2009 World Molecular Imaging Congress (WMIC 2009) AU - Qi, Jinyi Y1 - 2009/09/23/ PY - 2009 DA - 2009 Sep 23 KW - Imaging techniques KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42457950?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+World+Molecular+Imaging+Congress+%28WMIC+2009%29&rft.atitle=Quantitative+Molecular+Imaging%3A+Reconstruction%2C+Partial+Volume+Effects%2C+Normalization&rft.au=Qi%2C+Jinyi&rft.aulast=Qi&rft.aufirst=Jinyi&rft.date=2009-09-23&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+World+Molecular+Imaging+Congress+%28WMIC+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.ami-imaging.org/images/WorkshopDetail.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Ultrafast Terahertz Studies of Dirac Fermion Dynamics in Graphene T2 - The 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009) AN - 42443491; 5413814 JF - The 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009) AU - Choi, Hyunyong AU - Borondics, Ferenc AU - Siegel, David AU - Zhou, Shuyun AU - Martin, Michael AU - Lanzara, Alessandra AU - Kaindl, Robert Y1 - 2009/09/21/ PY - 2009 DA - 2009 Sep 21 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42443491?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=The+34th+International+Conference+on+Infrared%2C+Millimeter%2C+and+Terahertz+Waves+%28IRMMW-THz+2009%29&rft.atitle=Ultrafast+Terahertz+Studies+of+Dirac+Fermion+Dynamics+in+Graphene&rft.au=Choi%2C+Hyunyong%3BBorondics%2C+Ferenc%3BSiegel%2C+David%3BZhou%2C+Shuyun%3BMartin%2C+Michael%3BLanzara%2C+Alessandra%3BKaindl%2C+Robert&rft.aulast=Choi&rft.aufirst=Hyunyong&rft.date=2009-09-21&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=The+34th+International+Conference+on+Infrared%2C+Millimeter%2C+and+Terahertz+Waves+%28IRMMW-THz+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.irmmw-thz2009.org/TPLS/USR/Program/Programguide.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The Creation and History of the Universe T2 - The 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009) AN - 42430634; 5413438 JF - The 34th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2009) AU - Smoot, George Y1 - 2009/09/21/ PY - 2009 DA - 2009 Sep 21 KW - Historical account KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42430634?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Sina+Swings+to+Loss&rft.au=Solsman%2C+Joan+E&rft.aulast=Solsman&rft.aufirst=Joan&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.irmmw-thz2009.org/TPLS/USR/Program/Programguide.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Identification and Structural Analysis of a Novel Carboxysome Shell Protein with Implications for Metabolite Transport AN - 21010993; 10849404 AB - Bacterial microcompartments (BMCs) are polyhedral bodies, composed entirely of proteins, that function as organelles in bacteria; they promote subcellular processes by encapsulating and co-localizing targeted enzymes with their substrates. The best-characterized BMC is the carboxysome, a central part of the carbon- concentrating mechanism that greatly enhances carbon fixation in cyanobacteria and some chemoautotrophs. Here we report the first structural insights into the carboxysome of Prochlorococcus, the numerically dominant cyanobacterium in the world's oligotrophic oceans. Bioinformatic methods, substantiated by analysis of gene expression data, were used to identify a new carboxysome shell component, CsoS1D, in the genome of Prochlorococcus strain MED4; orthologs were subsequently found in all cyanobacteria. Two independent crystal structures of Prochlorococcus MED4 CsoS1D reveal three features not seen in any BMC-domain protein structure solved to date. First, CsoS1D is composed of a fused pair of BMC domains. Second, this double-domain protein trimerizes to form a novel pseudohexameric building block for incorporation into the carboxysome shell, and the trimers further dimerize, forming a two-tiered shell building block. Third, and most strikingly, the large pore formed at the 3-fold axis of symmetry appears to be gated. Each dimer of trimers contains one trimer with an open pore and one whose pore is obstructed due to side-chain conformations of two residues that are invariant among all CsoS1D orthologs. This is the first evidence of the potential for gated transport across the carboxysome shell and reveals a new type of building block for BMC shells. JF - Journal of Molecular Biology AU - Klein, M G AU - Zwart, P AU - Bagby, S C AU - Cai, F AU - Chisholm, S W AU - Heinhorst, S AU - Cannon, G C AU - Kerfeld, CA AD - U.S. Department of Energy Joint Genome Institute, Walnut Creek, CA 94598, USA, ckerfeld@lbl.gov Y1 - 2009/09/18/ PY - 2009 DA - 2009 Sep 18 SP - 319 EP - 333 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 392 IS - 2 SN - 0022-2836, 0022-2836 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Microbiology Abstracts C: Algology, Mycology & Protozoology; Microbiology Abstracts B: Bacteriology KW - Genomes KW - Data processing KW - Enzymes KW - Metabolites KW - Gene expression KW - Protein structure KW - Polyhedra KW - Pores KW - Cyanobacteria KW - Oceans KW - Crystal structure KW - Bone mineral content KW - Bioinformatics KW - Shells KW - Prochlorococcus KW - Organelles KW - Carbon fixation KW - K 03310:Genetics & Taxonomy KW - A 01300:Methods KW - J 02450:Ecology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21010993?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+Molecular+Biology&rft.atitle=Identification+and+Structural+Analysis+of+a+Novel+Carboxysome+Shell+Protein+with+Implications+for+Metabolite+Transport&rft.au=Klein%2C+M+G%3BZwart%2C+P%3BBagby%2C+S+C%3BCai%2C+F%3BChisholm%2C+S+W%3BHeinhorst%2C+S%3BCannon%2C+G+C%3BKerfeld%2C+CA&rft.aulast=Klein&rft.aufirst=M&rft.date=2009-09-18&rft.volume=392&rft.issue=2&rft.spage=319&rft.isbn=&rft.btitle=&rft.title=Journal+of+Molecular+Biology&rft.issn=00222836&rft_id=info:doi/10.1016%2Fj.jmb.2009.03.056 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Genomes; Data processing; Enzymes; Metabolites; Protein structure; Gene expression; Polyhedra; Pores; Oceans; Bone mineral content; Crystal structure; Shells; Bioinformatics; Organelles; Carbon fixation; Cyanobacteria; Prochlorococcus DO - http://dx.doi.org/10.1016/j.jmb.2009.03.056 ER - TY - JOUR T1 - Biocorrosive Thermophilic Microbial Communities in Alaskan North Slope Oil Facilities AN - 754543205; 13268121 AB - Corrosion of metallic oilfield pipelines by microorganisms is a costly but poorly understood phenomenon, with standard treatment methods targeting mesophilic sulfate-reducing bacteria. In assessing biocorrosion potential at an Alaskan North Slope oil field, we identified thermophilic hydrogen-using methanogens, syntrophic bacteria, peptide- and amino acid-fermenting bacteria, iron reducers, sulfur/thiosulfate-reducing bacteria, and sulfate-reducing archaea. These microbes can stimulate metal corrosion through production of organic acids, CO2, sulfur species, and via hydrogen oxidation and iron reduction, implicating many more types of organisms than are currently targeted. Micromolar quantities of putative anaerobic metabolites of C1-C4 n-alkanes in pipeline fluids were detected, implying that these low molecular weight hydrocarbons, routinely reinjected into reservoirs for oil recovery purposes, are biodegraded and can provide biocorrosive microbial communities with an important source of nutrients. JF - Environmental Science & Technology AU - Duncan, Kathleen E AU - Gieg, Lisa M AU - Parisi, Victoria A AU - Tanner, Ralph S AU - Tringe, Susannah Green AU - Bristow, Jim AU - Suflita, Joseph M AD - Department of Botany and Microbiology and the Institute for Energy and the Environment, University of Oklahoma, Norman, Oklahoma, and DOE Joint Genome Institute, Walnut Creek, California Y1 - 2009/09/16/ PY - 2009 DA - 2009 Sep 16 SP - 7977 EP - 7984 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 43 IS - 20 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Biotechnology and Bioengineering Abstracts; Environment Abstracts KW - Sulfur KW - Archaea KW - Heavy metals KW - Thermophilic bacteria KW - Anaerobic microorganisms KW - Metabolites KW - Nutrients KW - Hydrogen KW - Oil KW - Pipelines KW - Thermophilic microorganisms KW - Metals KW - Sulfate-reducing bacteria KW - Hydrocarbons KW - Microbial activity KW - N-Alkanes KW - Methanogenic bacteria KW - organic acids KW - Oil fields KW - Oxidation KW - Microorganisms KW - Corrosion KW - Carbon dioxide KW - Iron KW - W 30940:Products KW - A 01450:Environmental Pollution & Waste Treatment KW - ENA 18:Transportation UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754543205?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Biocorrosive+Thermophilic+Microbial+Communities+in+Alaskan+North+Slope+Oil+Facilities&rft.au=Duncan%2C+Kathleen+E%3BGieg%2C+Lisa+M%3BParisi%2C+Victoria+A%3BTanner%2C+Ralph+S%3BTringe%2C+Susannah+Green%3BBristow%2C+Jim%3BSuflita%2C+Joseph+M&rft.aulast=Duncan&rft.aufirst=Kathleen&rft.date=2009-09-16&rft.volume=43&rft.issue=20&rft.spage=7977&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9013932 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Sulfur; Sulfate-reducing bacteria; Heavy metals; Hydrocarbons; Thermophilic bacteria; Nutrients; Metabolites; Anaerobic microorganisms; Hydrogen; Methanogenic bacteria; N-Alkanes; Oil; organic acids; Oxidation; Corrosion; Microorganisms; Carbon dioxide; Iron; Thermophilic microorganisms; Metals; Oil fields; Microbial activity; Pipelines; Archaea DO - http://dx.doi.org/10.1021/es9013932 ER - TY - CPAPER T1 - Wind-and-React Bi-2212 Coil Development for Accelerator Magnets T2 - 9th European Conference on Applied Superconductivity (EUCAS 2009) AN - 42346540; 5363278 JF - 9th European Conference on Applied Superconductivity (EUCAS 2009) AU - Godeke, A AU - Cheng, D AU - Dietderich, D AU - Prestemon, S AU - Sabbi, G Y1 - 2009/09/13/ PY - 2009 DA - 2009 Sep 13 KW - Magnets KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42346540?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=9th+European+Conference+on+Applied+Superconductivity+%28EUCAS+2009%29&rft.atitle=Wind-and-React+Bi-2212+Coil+Development+for+Accelerator+Magnets&rft.au=Godeke%2C+A%3BCheng%2C+D%3BDietderich%2C+D%3BPrestemon%2C+S%3BSabbi%2C+G&rft.aulast=Godeke&rft.aufirst=A&rft.date=2009-09-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=9th+European+Conference+on+Applied+Superconductivity+%28EUCAS+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://eucas2009.ifw-dresden.de/fileadmin/book/all.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-18 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Transverse Pressure Dependence of Critical Current of Nb3Sn Rutherford Cables used in LARP Quadrupole Magnets T2 - 9th European Conference on Applied Superconductivity (EUCAS 2009) AN - 42342781; 5363399 JF - 9th European Conference on Applied Superconductivity (EUCAS 2009) AU - Dietderich, D AU - Arbelaez, D AU - Ghosh, A AU - Godeke, A AU - Prestemon, S AU - Sabbi, G AU - Trillaud, F AU - Weijers, H Y1 - 2009/09/13/ PY - 2009 DA - 2009 Sep 13 KW - Pressure KW - Magnets KW - Cables KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42342781?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=9th+European+Conference+on+Applied+Superconductivity+%28EUCAS+2009%29&rft.atitle=Transverse+Pressure+Dependence+of+Critical+Current+of+Nb3Sn+Rutherford+Cables+used+in+LARP+Quadrupole+Magnets&rft.au=Dietderich%2C+D%3BArbelaez%2C+D%3BGhosh%2C+A%3BGodeke%2C+A%3BPrestemon%2C+S%3BSabbi%2C+G%3BTrillaud%2C+F%3BWeijers%2C+H&rft.aulast=Dietderich&rft.aufirst=D&rft.date=2009-09-13&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=9th+European+Conference+on+Applied+Superconductivity+%28EUCAS+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://eucas2009.ifw-dresden.de/fileadmin/book/all.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-18 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Occurrence of gas hydrate in Oligocene Frio Sand; Alaminos Canyon Block 818; northern Gulf of Mexico AN - 859728072; 2011-030484 AB - A unique set of high-quality downhole shallow subsurface well log data combined with industry standard 3D seismic data from the Alaminos Canyon area has enabled the first detailed description of a concentrated gas hydrate accumulation within sand in the Gulf of Mexico. The gas hydrate occurs within very fine grained, immature volcaniclastic sands of the Oligocene Frio sand. Analysis of well data acquired from the Alaminos Canyon Block 818 #1 ("Tigershark") well shows a total gas hydrate occurrence 13 m thick, with inferred gas hydrate saturation as high as 80% of sediment pore space. Average porosity in the reservoir is estimated from log data at approximately 42%. Permeability in the absence of gas hydrates, as revealed from the analysis of core samples retrieved from the well, ranges from 600 to 1500 millidarcies. The 3-D seismic data reveals a strong reflector consistent with significant increase in acoustic velocities that correlates with the top of the gas-hydrate-bearing sand. This reflector extends across an area of approximately 0.8 km (super 2) and delineates the minimal probable extent of the gas hydrate accumulation. The base of the inferred gas-hydrate zone also correlates well with a very strong seismic reflector that indicates transition into units of significantly reduced acoustic velocity. Seismic inversion analyses indicate uniformly high gas-hydrate saturations throughout the region where the Frio sand exists within the gas hydrate stability zone. Numerical modeling of the potential production of natural gas from the interpreted accumulation indicates serious challenges for depressurization-based production in settings with strong potential pressure support from extensive underlying aquifers. JF - Marine and Petroleum Geology AU - Boswell, R AU - Shelander, D AU - Lee, M AU - Latham, T AU - Collett, T AU - Guerin, G AU - Moridis, G AU - Reagan, M AU - Goldberg, D Y1 - 2009/09// PY - 2009 DA - September 2009 SP - 1499 EP - 1512 PB - Elsevier, Oxford VL - 26 IS - 8 SN - 0264-8172, 0264-8172 KW - petroleum exploration KW - geophysical surveys KW - gas hydrates KW - offshore KW - well-logging KW - petroleum KW - waveforms KW - simulation KW - Gulf of Mexico KW - reservoir rocks KW - Cenozoic KW - attenuation KW - Alaminos Canyon KW - sediments KW - sand KW - numerical models KW - clastic sediments KW - textures KW - geophysical methods KW - electrical methods KW - Frio Formation KW - reflection methods KW - Paleogene KW - resistivity KW - porosity KW - seismic methods KW - Tertiary KW - saturation KW - formation evaluation KW - acoustical logging KW - sedimentary petrology KW - volume KW - surveys KW - reservoir properties KW - North Atlantic KW - Atlantic Ocean KW - Oligocene KW - 29A:Economic geology, geology of energy sources KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/859728072?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Marine+and+Petroleum+Geology&rft.atitle=Occurrence+of+gas+hydrate+in+Oligocene+Frio+Sand%3B+Alaminos+Canyon+Block+818%3B+northern+Gulf+of+Mexico&rft.au=Boswell%2C+R%3BShelander%2C+D%3BLee%2C+M%3BLatham%2C+T%3BCollett%2C+T%3BGuerin%2C+G%3BMoridis%2C+G%3BReagan%2C+M%3BGoldberg%2C+D&rft.aulast=Boswell&rft.aufirst=R&rft.date=2009-09-01&rft.volume=26&rft.issue=8&rft.spage=1499&rft.isbn=&rft.btitle=&rft.title=Marine+and+Petroleum+Geology&rft.issn=02648172&rft_id=info:doi/10.1016%2Fj.marpetgeo.2009.03.005 L2 - http://www.sciencedirect.com/science/journal/02648172 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2011-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. sect., 1 table, sketch map N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - acoustical logging; Alaminos Canyon; Atlantic Ocean; attenuation; Cenozoic; clastic sediments; electrical methods; formation evaluation; Frio Formation; gas hydrates; geophysical methods; geophysical surveys; Gulf of Mexico; North Atlantic; numerical models; offshore; Oligocene; Paleogene; petroleum; petroleum exploration; porosity; reflection methods; reservoir properties; reservoir rocks; resistivity; sand; saturation; sedimentary petrology; sediments; seismic methods; simulation; surveys; Tertiary; textures; volume; waveforms; well-logging DO - http://dx.doi.org/10.1016/j.marpetgeo.2009.03.005 ER - TY - JOUR T1 - Geophysical monitoring of coupled microbial and geochemical processes during stimulated subsurface bioremediation. AN - 734051706; 19764240 AB - Understanding how microorganisms alter their physical and chemical environment during bioremediation is hindered by our inability to resolve subsurface microbial activity with high spatial resolution. Here we demonstrate the use of a minimally invasive geophysical technique to monitor stimulated microbial activity during acetate amendment in an aquifer near Rifle, Colorado. During electrical induced polarization (IP) measurements, spatiotemporal variations in the phase response between imposed electric current and the resultant electric field correlated with changes in groundwater geochemistry accompanying stimulated iron and sulfate reduction and sulfide mineral precipitation. The magnitude of the phase response varied with measurement frequency (0.125 and 1 Hz) and was dependent upon the dominant metabolic process. The spectral effect was corroborated using a biostimulated column experiment containing Rifle sediments and groundwater. Fluids and sediments recovered from regions exhibiting an anomalous phase response were enriched in Fe(II), dissolved sulfide, and cell-associated FeS nanoparticles. The accumulation of mineral precipitates and electroactive ions altered the ability of pore fluids to conduct electrical charge, accounting for the anomalous IP response and revealing the usefulness of multifrequency IP measurementsfor monitoring mineralogical and geochemical changes accompanying stimulated subsurface bioremediation. JF - Environmental science & technology AU - Williams, Kenneth H AU - Kemna, Andreas AU - Wilkins, Michael J AU - Druhan, Jennifer AU - Arntzen, Evan AU - N'Guessan, A Lucie AU - Long, Philip E AU - Hubbard, Susan S AU - Banfield, Jillian F AD - Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA. khwilliams@lbl.gov Y1 - 2009/09/01/ PY - 2009 DA - 2009 Sep 01 SP - 6717 EP - 6723 VL - 43 IS - 17 SN - 0013-936X, 0013-936X KW - Ferrous Compounds KW - 0 KW - Sulfides KW - Water Pollutants, Chemical KW - Index Medicus KW - Geological Phenomena KW - Fresh Water -- chemistry KW - Sulfides -- chemistry KW - Electricity KW - Colorado KW - Ferrous Compounds -- chemistry KW - Nanoparticles -- chemistry KW - Models, Theoretical KW - Geologic Sediments -- chemistry KW - Geology -- methods KW - Water Pollutants, Chemical -- analysis KW - Geologic Sediments -- microbiology KW - Biodegradation, Environmental KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/734051706?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Geophysical+monitoring+of+coupled+microbial+and+geochemical+processes+during+stimulated+subsurface+bioremediation.&rft.au=Williams%2C+Kenneth+H%3BKemna%2C+Andreas%3BWilkins%2C+Michael+J%3BDruhan%2C+Jennifer%3BArntzen%2C+Evan%3BN%27Guessan%2C+A+Lucie%3BLong%2C+Philip+E%3BHubbard%2C+Susan+S%3BBanfield%2C+Jillian+F&rft.aulast=Williams&rft.aufirst=Kenneth&rft.date=2009-09-01&rft.volume=43&rft.issue=17&rft.spage=6717&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-11-23 N1 - Date created - 2009-09-21 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Three-dimensional controlled-source electromagnetic and magnetotelluric joint inversion AN - 50122842; 2010-002761 AB - The growing use of the controlled-source electromagnetic method (CSEM) and magnetotellurics (MT) for exploration applications has been driving the development of data acquisition technologies, and three-dimensional (3-D) modelling and imaging techniques. However, targeting increasingly complex geological environments also further enhances the problems inherent in large-scale inversion, such as non-uniqueness and resolution issues. In this paper, we report on two techniques to mitigate these problems. We use 3-D joint CSEM and MT inversion to improve the model resolution. To avoid the suppression of the resolution capacities of one data type, and thus to balance the use of inherent, and ideally complementary information content, different data reweighting schemes are proposed. Further, a hybrid model parametrization approach is presented, where traditional cell-based model parameters are used simultaneously within a parametric inversion. The idea is to limit the non-uniqueness problem, typical for 3-D imaging problems, in order to allow for a more focusing inversion. The methods are demonstrated using synthetic data generated from models with a strong practical relevance. Abstract Copyright (2009), RAS. JF - Geophysical Journal International AU - Commer, Michael AU - Newman, Gregory A Y1 - 2009/09// PY - 2009 DA - September 2009 SP - 1305 EP - 1316 PB - Wiley-Blackwell on behalf of The Royal Astronomical Society, the Deutsche Geophysikalische Gesellschaft and the European Geophysical Society VL - 178 IS - 3 SN - 0956-540X, 0956-540X KW - petroleum exploration KW - technology KW - monitoring KW - carbon sequestration KW - three-dimensional models KW - geophysical methods KW - petroleum KW - inverse problem KW - magnetotelluric methods KW - marine environment KW - electromagnetic methods KW - algorithms KW - 20:Applied geophysics UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50122842?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Geophysical+Journal+International&rft.atitle=Three-dimensional+controlled-source+electromagnetic+and+magnetotelluric+joint+inversion&rft.au=Commer%2C+Michael%3BNewman%2C+Gregory+A&rft.aulast=Commer&rft.aufirst=Michael&rft.date=2009-09-01&rft.volume=178&rft.issue=3&rft.spage=1305&rft.isbn=&rft.btitle=&rft.title=Geophysical+Journal+International&rft.issn=0956540X&rft_id=info:doi/10.1111%2Fj.1365-246X.2009.04216.x L2 - http://www.blackwellpublishing.com/journal.asp?ref=0956-540X LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom N1 - Date revised - 2010-01-01 N1 - Number of references - 19 N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - algorithms; carbon sequestration; electromagnetic methods; geophysical methods; inverse problem; magnetotelluric methods; marine environment; monitoring; petroleum; petroleum exploration; technology; three-dimensional models DO - http://dx.doi.org/10.1111/j.1365-246X.2009.04216.x ER - TY - JOUR T1 - The U-tube; a new paradigm for borehole fluid sampling AN - 50119503; 2010-001391 JF - Scientific Drilling AU - Freifeld, Barry Y1 - 2009/09// PY - 2009 DA - September 2009 SP - 41 EP - 45 PB - Integrated Ocean Drilling Program Management International, Sapporo; Washington, DC VL - 8 SN - 1816-8957, 1816-8957 KW - methods KW - drilling muds KW - boreholes KW - sampling KW - marine methods KW - testing KW - fluid phase KW - drilling KW - cores KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/50119503?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Scientific+Drilling&rft.atitle=The+U-tube%3B+a+new+paradigm+for+borehole+fluid+sampling&rft.au=Freifeld%2C+Barry&rft.aulast=Freifeld&rft.aufirst=Barry&rft.date=2009-09-01&rft.volume=8&rft.issue=&rft.spage=41&rft.isbn=&rft.btitle=&rft.title=Scientific+Drilling&rft.issn=18168957&rft_id=info:doi/10.2204%2Fiodp.sd.8.07.2009 L2 - http://www.iodp.org/scientific-drilling/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2010-01-01 N1 - Number of references - 9 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-06-07 N1 - SubjectsTermNotLitGenreText - boreholes; cores; drilling; drilling muds; fluid phase; marine methods; methods; sampling; testing DO - http://dx.doi.org/10.2204/iodp.sd.8.07.2009 ER - TY - JOUR T1 - Computational challenges for nanostructure solar cells AN - 21212673; 11188465 AB - This review discusses the current status of large scale computational capability and future challenges for nanostructure solar cell simulations. The focus is on atomistic ab initio simulations for inorganic nanocrystal systems. A discussion of current capability in simulating the critical steps in a solar cell operation: photon absorption, exciton generation, exciton dissociation, carrier transport, and charge transfer crossing a nano contact is presented. A few novel computational methods that scale linearly to the size of the system, while retaining the ab initio quality of the simulation are introduced. Also discussed are the most challenging aspects of the simulations: surface passivation and nanocontact atomic structures. JF - Energy & Environmental Science AU - Wang, L-W AD - Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA, 94720, USA Y1 - 2009/09// PY - 2009 DA - Sep 2009 SP - 944 EP - 955 PB - Royal Society of Chemistry, c/o Springer-Verlag New York Inc. PO Box 2485 Secaucus New Jersey 07096 2485 USA, [mailto:sales@springer-ny.com], [URL:http://www.rsc.org/is/pubcat/pubblurb.htm] VL - 2 IS - 9 SN - 1754-5692, 1754-5692 KW - Environment Abstracts KW - Reviews KW - solar cells KW - Absorption KW - Simulation KW - ENA 03:Energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21212673?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Energy+%26+Environmental+Science&rft.atitle=Computational+challenges+for+nanostructure+solar+cells&rft.au=Wang%2C+L-W&rft.aulast=Wang&rft.aufirst=L-W&rft.date=2009-09-01&rft.volume=2&rft.issue=9&rft.spage=944&rft.isbn=&rft.btitle=&rft.title=Energy+%26+Environmental+Science&rft.issn=1086055X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Reviews; solar cells; Absorption; Simulation DO - http://dx.doi.org/10.1039/b904805g ER - TY - JOUR T1 - Background, status and future of the Transmission Electron Aberration-corrected Microscope project AN - 21078088; 11071819 AB - The strong interaction of electrons with small volumes of matter make them an ideal probe for nanomaterials, but our ability to fully use this signal in electron microscopes remains limited by lens aberrations. To bring this unique advantage to bear on materials research requires a sample space for electron scattering experiments in a tunable electron-optical environment. This is the vision for the Transmission Electron Aberration-corrected Microscope (TEAM) project, which was initiated as a collaborative effort to re-design the electron microscope around aberration-correcting optics. The resulting improvements in spatial, spectral and temporal resolution, the increased space around the sample and the possibility of exotic electron-optical settings will enable new types of experiments. This contribution will give an overview of the TEAM project and its current status, illustrate the performance of the TEAM 0.5 instrument, with highlights from early applications of the machine, and outline future scientific opportunities for aberration-corrected microscopy. JF - Philosophical Transactions of the Royal Society of London, Series A: Mathematical, Physical and Engineering Sciences AU - Dahmen, Ulrich AU - Erni, Rolf AU - Radmilovic, Velimir AU - Ksielowski, Christian AU - Rossell, Marta-Dacil AU - Denes, Peter AD - National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, udahmen@lbl.gov Y1 - 2009/09// PY - 2009 DA - Sep 2009 SP - 3795 EP - 3808 PB - Royal Society of London, 6 Carlton House Terrace London SW1Y 5AG UK, [mailto:info@royalsoc.ac.uk], [URL:http://www.royalsoc.ac.uk/] VL - 367 IS - 1903 SN - 1364-503X, 1364-503X KW - Biotechnology and Bioengineering Abstracts KW - Optics KW - Vision KW - Reviews KW - Microscopes KW - Probes KW - nanotechnology KW - W 30900:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21078088?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Philosophical+Transactions+of+the+Royal+Society+of+London%2C+Series+A%3A+Mathematical%2C+Physical+and+Engineering+Sciences&rft.atitle=Background%2C+status+and+future+of+the+Transmission+Electron+Aberration-corrected+Microscope+project&rft.au=Dahmen%2C+Ulrich%3BErni%2C+Rolf%3BRadmilovic%2C+Velimir%3BKsielowski%2C+Christian%3BRossell%2C+Marta-Dacil%3BDenes%2C+Peter&rft.aulast=Dahmen&rft.aufirst=Ulrich&rft.date=2009-09-01&rft.volume=367&rft.issue=1903&rft.spage=3795&rft.isbn=&rft.btitle=&rft.title=Philosophical+Transactions+of+the+Royal+Society+of+London%2C+Series+A%3A+Mathematical%2C+Physical+and+Engineering+Sciences&rft.issn=1364503X&rft_id=info:doi/10.1098%2Frsta.2009.0094 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Microscopes; Probes; Reviews; Vision; nanotechnology; Optics DO - http://dx.doi.org/10.1098/rsta.2009.0094 ER - TY - JOUR T1 - IMG ER: a system for microbial genome annotation expert review and curation AN - 20947180; 10994548 AB - Motivation: A rapidly increasing number of microbial genomes are sequenced by organizations worldwide and are eventually included into various public genome data resources. The quality of the annotations depends largely on the original dataset providers, with erroneous or incomplete annotations often carried over into the public resources and difficult to correct.Results: We have developed an Expert Review (ER) version of the Integrated Microbial Genomes (IMG) system, with the goal of supporting systematic and efficient revision of microbial genome annotations. IMG ER provides tools for the review and curation of annotations of both new and publicly available microbial genomes within IMG's rich integrated genome framework. New genome datasets are included into IMG ER prior to their public release either with their native annotations or with annotations generated by IMG ER's annotation pipeline. IMG ER tools allow addressing annotation problems detected with IMG's comparative analysis tools, such as genes missed by gene prediction pipelines or genes without an associated function. Over the past year, IMG ER was used for improving the annotations of about 150 microbial genomes. Supplementary information: Supplementary data are available at Bioinformatics online. JF - Bioinformatics AU - Markowitz, Victor M AU - Mavromatis, Konstantinos AU - Ivanova, Natalia N AU - Chen, I-Min A AU - Chu, Ken AU - Kyrpides, Nikos C AD - Biological Data Management and Technology Center, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, vmmarkowitz@lbl.gov Y1 - 2009/09/01/ PY - 2009 DA - 2009 Sep 01 SP - 2271 EP - 2278 PB - Oxford University Press, Oxford Journals, Great Clarendon Street Oxford OX2 6DP UK VL - 25 IS - 17 SN - 1367-4803, 1367-4803 KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Genetics Abstracts; Biotechnology and Bioengineering Abstracts KW - Genomes KW - Data processing KW - Reviews KW - Bioinformatics KW - G 07880:Human Genetics KW - A 01490:Miscellaneous KW - W 30960:Bioinformatics & Computer Applications UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20947180?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Bioinformatics&rft.atitle=IMG+ER%3A+a+system+for+microbial+genome+annotation+expert+review+and+curation&rft.au=Markowitz%2C+Victor+M%3BMavromatis%2C+Konstantinos%3BIvanova%2C+Natalia+N%3BChen%2C+I-Min+A%3BChu%2C+Ken%3BKyrpides%2C+Nikos+C&rft.aulast=Markowitz&rft.aufirst=Victor&rft.date=2009-09-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-10-01 N1 - Last updated - 2015-03-19 N1 - SubjectsTermNotLitGenreText - Genomes; Data processing; Reviews; Bioinformatics DO - http://dx.doi.org/10.1093/bioinformatics/btp393 ER - TY - JOUR T1 - The consequences of failure should be considered in siting geologic carbon sequestration projects AN - 20798998; 10894029 AB - Geologic carbon sequestration is the injection of anthropogenic CO sub(2) into deep geologic formations where the CO sub(2) is intended to remain indefinitely. If successfully implemented, geologic carbon sequestration will have little or no impact on terrestrial ecosystems aside from the mitigation of climate change. However, failure of a geologic carbon sequestration site, such as large-scale leakage of CO sub(2) into a potable groundwater aquifer, could cause impacts that would require costly remediation measures. Governments are attempting to develop regulations for permitting geologic carbon sequestration sites to ensure their safety and effectiveness. At present, these regulations focus largely on decreasing the probability of failure. In this paper we propose that regulations for the siting of early geologic carbon sequestration projects should emphasize limiting the consequences of failure because consequences are easier to quantify than failure probability. JF - International Journal of Greenhouse Gas Control AU - Price, Phillip N AU - Oldenburg, Curtis M AD - Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, cmoldenburg@lbl.gov Y1 - 2009/09// PY - 2009 DA - September 2009 SP - 658 EP - 663 PB - Elsevier Science, The Boulevard Langford Lane Kidlington Oxford OX5 1GB UK, [mailto:usinfo-f@elsevier.com], [URL:http://www.elsevier.nl] VL - 3 IS - 5 SN - 1750-5836, 1750-5836 KW - Sustainability Science Abstracts; Environment Abstracts; Pollution Abstracts KW - Geologic carbon sequestration KW - Site selection KW - Risk assessment KW - Regulation KW - Aquifers KW - Bioremediation KW - Leakage KW - anthropogenic factors KW - Climate change KW - Carbon sequestration KW - mitigation KW - Geology KW - terrestrial ecosystems KW - Carbon dioxide KW - Groundwater KW - Greenhouse gases KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - ENA 20:Weather Modification & Geophysical Change UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20798998?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=International+Journal+of+Greenhouse+Gas+Control&rft.atitle=The+consequences+of+failure+should+be+considered+in+siting+geologic+carbon+sequestration+projects&rft.au=Price%2C+Phillip+N%3BOldenburg%2C+Curtis+M&rft.aulast=Price&rft.aufirst=Phillip&rft.date=2009-09-01&rft.volume=3&rft.issue=5&rft.spage=658&rft.isbn=&rft.btitle=&rft.title=International+Journal+of+Greenhouse+Gas+Control&rft.issn=17505836&rft_id=info:doi/10.1016%2Fj.ijggc.2009.03.002 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-01 N1 - Last updated - 2016-07-07 N1 - SubjectsTermNotLitGenreText - Aquifers; Carbon sequestration; mitigation; Leakage; Bioremediation; anthropogenic factors; Climate change; Geology; terrestrial ecosystems; Greenhouse gases; Groundwater; Carbon dioxide DO - http://dx.doi.org/10.1016/j.ijggc.2009.03.002 ER - TY - JOUR T1 - Enhancing a leaf radiative transfer model to estimate concentrations and in vivo specific absorption coefficients of total carotenoids and chlorophylls a and b from single-needle reflectance and transmittance AN - 20760727; 10242018 AB - The relative concentrations of different pigments within a leaf have significant physiological and spectral consequences. Photosynthesis, light use efficiency, mass and energy exchange, and stress response are dependent on relationships among an ensemble of pigments. This ensemble also determines the visible characteristics of a leaf, which can be measured remotely and used to quantify leaf biochemistry and structure. But current remote sensing approaches are limited in their ability to resolve individual pigments. This paper focuses on the incorporation of three pigments-chlorophyll a, chlorophyll b, and total carotenoids-into the LIBERTY leaf radiative transfer model to better understand relationships between leaf biochemical, biophysical, and spectral properties. Pinus ponderosa and Pinus jeffreyi needles were collected from three sites in the California Sierra Nevada. Hemispheric single-leaf visible reflectance and transmittance and concentrations of chlorophylls a and b and total carotenoids of fresh needles were measured. These data were input to the enhanced LIBERTY model to estimate optical and biochemical properties of pine needles. The enhanced model successfully estimated reflectance (RMSE=0.0255, BIAS=0.00477, RMS%E=16.7%), had variable success estimating transmittance (RMSE=0.0442, BIAS=0.0294, RMS%E=181%), and generated very good estimates of carotenoid concentrations (RMSE=2.48 ?g /cm super(2), BIAS=0.143 ?g/cm super(2), RMS%E=20.4%), good estimates of chlorophyll a concentrations (RMSE=10.7 ?g/cm super(2), BIAS=-0.992 ?g /cm super(2), RMS%E=21.1%), and fair estimates of chlorophyll b concentrations (RMSE=7.49 ?g/cm super(2), BIAS=-2.12 ?g/cm super(2), RMS%E=43.7%). Overall root mean squared errors of reflectance, transmittance, and pigment concentration estimates were lower for the three-pigment model than for the single-pigment model. The algorithm to estimate three in vivo specific absorption coefficients is robust, although estimated values are distorted by inconsistencies in model biophysics. The capacity to invert the model from single-leaf reflectance and transmittance was added to the model so it could be coupled with vegetation canopy models to estimate canopy biochemistry from remotely sensed data. JF - Remote Sensing of Environment AU - Di Vittorio, AV AD - University of California, Berkeley, Lawrence Berkeley National Laboratory, One Cyclotron Road, Mail Stop 90-1116, Berkeley, CA 94720-8126, United States, adivi@nature.berkeley.edu Y1 - 2009/09// PY - 2009 DA - Sep 2009 SP - 1948 EP - 1966 PB - Elsevier Science, Box 882 New York NY 10159 USA, [mailto:usinfo-f@elsevier.com] VL - 113 IS - 9 SN - 0034-4257, 0034-4257 KW - Environment Abstracts; Ecology Abstracts; Meteorological & Geoastrophysical Abstracts KW - transmittance KW - Chlorophyll KW - Reflectance KW - Biochemistry KW - Photosynthesis KW - Remote sensing of environment KW - Pinus ponderosa KW - Leaf biochemistry KW - Algorithms KW - Remote sensing KW - Pinus jeffreyi KW - Efficiency KW - Pigments KW - Absorption KW - USA, California KW - Canopies KW - radiative transfer KW - Data processing KW - Leaves KW - USA, California, Sierra Nevada Mts. KW - Radiative transfer models KW - Absorption coefficients KW - Carotenoids KW - canopies KW - ENA 03:Energy KW - D 04030:Models, Methods, Remote Sensing KW - M2 551.501:Methods of Observation/Computations (551.501) UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20760727?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aecology&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=11th+Pacific+Polymer+Conference+%28PPC+11%29&rft.atitle=Functional+Polymers%3A+from+design+to+applications&rft.au=Frechet%2C+Jean&rft.aulast=Frechet&rft.aufirst=Jean&rft.date=2009-12-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=11th+Pacific+Polymer+Conference+%28PPC+11%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-08-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Chlorophyll; Data processing; Reflectance; Pigments; Remote sensing; Leaves; Canopies; Carotenoids; Radiative transfer models; Photosynthesis; Biochemistry; Remote sensing of environment; Leaf biochemistry; Absorption coefficients; Algorithms; Efficiency; transmittance; Absorption; radiative transfer; canopies; Pinus ponderosa; Pinus jeffreyi; USA, California; USA, California, Sierra Nevada Mts. DO - http://dx.doi.org/10.1016/j.rse.2009.05.002 ER - TY - JOUR T1 - A sequential partly iterative approach for multicomponent reactive transport with CORE (super 2D) AN - 1729846813; 2015-105053 AB - CORE (super 2D) V4 is a finite element code for modeling partly or fully saturated water flow, heat transport, and multicomponent reactive solute transport under both local chemical equilibrium and kinetic conditions. It can handle coupled microbial processes and geochemical reactions such as acid-base, aqueous complexation, redox, mineral dissolution/precipitation, gas dissolution/exsolution, ion exchange, sorption via linear and nonlinear isotherms, and sorption via surface complexation. Hydraulic parameters may change due to mineral precipitation/dissolution reactions. Coupled transport and chemical equations are solved by using sequential iterative approaches. A sequential partly iterative approach (SPIA) is presented which improves the accuracy of the traditional sequential non-iterative approach (SNIA) and is more efficient than the general sequential iterative approach (SIA). While SNIA leads to a substantial saving of computing time, it introduces numerical errors which are especially large for cation exchange reactions. SPIA improves the efficiency of SIA because the iteration between transport and chemical equations is only performed in nodes with a large mass transfer between solid and liquid phases. The efficiency and accuracy of SPIA are compared to those of SIA and SNIA using synthetic examples and a case study of reactive transport through the Llobregat Delta aquitard in Spain. SPIA is found to be as accurate as SIA while requiring significantly less CPU time. In addition, SPIA is much more accurate than SNIA with only a minor increase in computing time. A further enhancement of the efficiency of SPIA is achieved by improving the efficiency of the Newton-Raphson method used for solving chemical equations. Such an improvement is obtained by working with increments of log concentrations and ignoring the terms of the Jacobian matrix containing derivatives of activity coefficients. A proof is given for the symmetry and non-singularity of the Jacobian matrix. Numerical analyses performed with synthetic examples confirm that these modifications improve the efficiency and convergence of the iterative algorithm. Copyright 2008 Springer Science+Business Media B.V. JF - Computational Geosciences AU - Samper, Javier AU - Xu, Tianfu AU - Yang, Changbing Y1 - 2009/09// PY - 2009 DA - September 2009 SP - 301 EP - 316 PB - Springer, Dordrecht VL - 13 IS - 3 SN - 1420-0597, 1420-0597 KW - fractured materials KW - iterative methods KW - pollutants KW - pollution KW - CORE2D KW - porous materials KW - mathematical models KW - hydrochemistry KW - ground water KW - models KW - finite element analysis KW - transport KW - heat flow KW - algorithms KW - geochemistry KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1729846813?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Computational+Geosciences&rft.atitle=A+sequential+partly+iterative+approach+for+multicomponent+reactive+transport+with+CORE+%28super+2D%29&rft.au=Samper%2C+Javier%3BXu%2C+Tianfu%3BYang%2C+Changbing&rft.aulast=Samper&rft.aufirst=Javier&rft.date=2009-09-01&rft.volume=13&rft.issue=3&rft.spage=301&rft.isbn=&rft.btitle=&rft.title=Computational+Geosciences&rft.issn=14200597&rft_id=info:doi/10.1007%2Fs10596-008-9119-5 L2 - http://www.springerlink.com/content/101744/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2015, American Geosciences Institute. Reference includes data supplied by Springer Verlag, Berlin, Federal Republic of Germany N1 - Date revised - 2015-01-01 N1 - Number of references - 68 N1 - Document feature - illus. incl. 6 tables N1 - Last updated - 2015-11-05 N1 - SubjectsTermNotLitGenreText - algorithms; CORE2D; finite element analysis; fractured materials; geochemistry; ground water; heat flow; hydrochemistry; iterative methods; mathematical models; models; pollutants; pollution; porous materials; transport DO - http://dx.doi.org/10.1007/s10596-008-9119-5 ER - TY - JOUR T1 - Modeling of thermally driven hydrological processes in partially saturated fractured rock AN - 1540223032; 20130950 AB - This paper is a review of the research that led to an in-depth understanding of flow and transport processes under strong heat stimulation in fractured, porous rock. It first describes the anticipated multiple processes that come into play in a partially saturated, fractured porous volcanic tuff geological formation when it is subject to a heat source such as that originating from the decay of radionuclides. The rationale is then given for numerical modeling being a key element in the study of multiple processes that are coupled. The paper outlines how the conceptualization and the numerical modeling of the problem evolved, progressing from the simplified to the more realistic. Examples of numerical models are presented so as to illustrate the advancement and maturation of the research over the last 2 decades. The most recent model applied to in situ field thermal tests is characterized by (1) incorporation of a full set of thermal-hydrological processes into a numerical simulator, (2) realistic representation of the field test geometry in three dimensions, and (3) use of site-specific characterization data for model inputs. Model predictions were carried out prior to initiation of data collection, and the model results were compared to diverse sets of measurements. The approach of close integration between modeling and field measurements has yielded a better understanding of how coupled thermal hydrological processes produce redistribution of moisture within the rock, which affects local permeability values and subsequently the flow of liquid and gases. The fluid flow, in turn, will change the temperature field. We end with a note on future research opportunities, specifically those incorporating chemical, mechanical, and microbiological factors into the study of thermal and hydrological processes. JF - Reviews of Geophysics AU - Tsang, Y W AU - Birkholzer, J T AU - Mukhopadhyay, S AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA. Y1 - 2009/09// PY - 2009 DA - September 2009 SP - [np] PB - American Geophysical Union, 2000 Florida Ave., N.W. Washington DC 20009 United States VL - 47 IS - 3 SN - 8755-1209, 8755-1209 KW - Meteorological & Geoastrophysical Abstracts; Ecology Abstracts; Aqualine Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Water Resources Abstracts KW - field heater tests KW - coupled processes KW - Prediction KW - Simulators KW - Model Testing KW - Field Tests KW - Heat sources KW - Models KW - Integration KW - Permeability KW - Hydrologic Models KW - Numerical models KW - Volcanic activity KW - Geophysics KW - Transport processes KW - Data Collections KW - Mechanical properties KW - Heat transport KW - Temperature effects KW - Geologic Fractures KW - Hydrologic analysis KW - Data processing KW - Mathematical models KW - Groundwater flow KW - Temperature fields KW - Fractures KW - Data collections KW - Gases KW - Heat KW - Reviews KW - Radioisotopes KW - Fluid flow KW - Q2 09263:Topography and morphology KW - AQ 00006:Sewage KW - M2 556:General (556) KW - SW 0810:General KW - D 04040:Ecosystem and Ecology Studies UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1540223032?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Reviews+of+Geophysics&rft.atitle=Modeling+of+thermally+driven+hydrological+processes+in+partially+saturated+fractured+rock&rft.au=Tsang%2C+Y+W%3BBirkholzer%2C+J+T%3BMukhopadhyay%2C+S&rft.aulast=Tsang&rft.aufirst=Y&rft.date=2009-09-01&rft.volume=47&rft.issue=3&rft.spage=%5Bnp%5D&rft.isbn=&rft.btitle=&rft.title=Reviews+of+Geophysics&rft.issn=87551209&rft_id=info:doi/10.1029%2F2008RG000265 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2014-06-01 N1 - Last updated - 2016-02-04 N1 - SubjectsTermNotLitGenreText - Permeability; Mathematical models; Simulators; Temperature fields; Data collections; Transport processes; Geophysics; Fluid flow; Heat transport; Temperature effects; Integration; Gases; Data processing; Heat; Radioisotopes; Fractures; Mechanical properties; Models; Hydrologic analysis; Numerical models; Volcanic activity; Groundwater flow; Heat sources; Prediction; Geologic Fractures; Hydrologic Models; Reviews; Field Tests; Model Testing; Data Collections DO - http://dx.doi.org/10.1029/2008RG000265 ER - TY - JOUR T1 - A suspended-particle rosette multi-sampler for discrete biogeochemical sampling in low-particle-density waters AN - 1015461901; 2012-048438 AB - To enable detailed investigations of early stage hydrothermal plume formation and abiotic and biotic plume processes we developed a new oceanographic tool. The Suspended Particulate Rosette sampling system has been designed to collect geochemical and microbial samples from the rising portion of deep-sea hydrothermal plumes. It can be deployed on a remotely operated vehicle for sampling rising plumes, on a wire-deployed water rosette for spatially discrete sampling of non-buoyant hydrothermal plumes, or on a fixed mooring in a hydrothermal vent field for time series sampling. It has performed successfully during both its first mooring deployment at the East Pacific Rise and its first remotely-operated vehicle deployments along the Mid-Atlantic Ridge. It is currently capable of rapidly filtering 24 discrete large-water-volume samples (30-100L per sample) for suspended particles during a single deployment (e.g. >90L per sample at 4-7L per minute through 1mu m pore diameter polycarbonate filters). The Suspended Particulate Rosette sampler has been designed with a long-term goal of seafloor observatory deployments, where it can be used to collect samples in response to tectonic or other events. It is compatible with in situ optical sensors, such as laser Raman or visible reflectance spectroscopy systems, enabling in situ particle analysis immediately after sample collection and before the particles alter or degrade. JF - Deep-Sea Research. Part I: Oceanographic Research Papers AU - Breier, J A AU - Rauch, C G AU - McCartney, K AU - Toner, B M AU - Fakra, S C AU - White, S N AU - German, C R Y1 - 2009/09// PY - 2009 DA - September 2009 SP - 1579 EP - 1589 PB - Elsevier, Oxford VL - 56 IS - 9 SN - 0967-0637, 0967-0637 KW - experimental studies KW - sea water KW - hydrothermal vents KW - suspended materials KW - marine sediments KW - sampling KW - marine methods KW - sediments KW - testing KW - particulate materials KW - instruments KW - field studies KW - 07:Oceanography UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1015461901?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Deep-Sea+Research.+Part+I%3A+Oceanographic+Research+Papers&rft.atitle=A+suspended-particle+rosette+multi-sampler+for+discrete+biogeochemical+sampling+in+low-particle-density+waters&rft.au=Breier%2C+J+A%3BRauch%2C+C+G%3BMcCartney%2C+K%3BToner%2C+B+M%3BFakra%2C+S+C%3BWhite%2C+S+N%3BGerman%2C+C+R&rft.aulast=Breier&rft.aufirst=J&rft.date=2009-09-01&rft.volume=56&rft.issue=9&rft.spage=1579&rft.isbn=&rft.btitle=&rft.title=Deep-Sea+Research.+Part+I%3A+Oceanographic+Research+Papers&rft.issn=09670637&rft_id=info:doi/10.1016%2Fj.dsr.2009.04.005 L2 - http://www.sciencedirect.com/science/journal/09670637 LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands N1 - Date revised - 2012-01-01 N1 - Number of references - 42 N1 - Document feature - illus. incl. 2 tables N1 - Last updated - 2012-06-07 N1 - CODEN - DRPPD5 N1 - SubjectsTermNotLitGenreText - experimental studies; field studies; hydrothermal vents; instruments; marine methods; marine sediments; particulate materials; sampling; sea water; sediments; suspended materials; testing DO - http://dx.doi.org/10.1016/j.dsr.2009.04.005 ER - TY - JOUR T1 - Lipid Peroxidation Induced by Expandable Clay Minerals AN - 754542754; 13268053 AB - Small-sized environmental particles such as 2:1 phyllosilicates induce oxidative stress, a primary indicator of cell damage and toxicity. Herein, potential hazards of clay particle uptake are addressed. This paper reports that the content and distribution of structural Fe influence the ability of expandable clay minerals to induce lipid peroxidation (LP), a major indicator of oxidative stress, in biological matrices. Three smectite clays, hectorite (SHCa-1) and two nontronites (NAu-1) and (NAu-2) containing varying total content and coordination environment of structural Fe, were selected. Screening and monitoring of LP was conducted using a thiobarbituric acid reactive substances (TBARS) assay. The higher content of TBARS in nontronites than that in SHCa-1 suspensions was explained because structural Fe contributes to LP. The observed lack of correlation between TBARS content and the extent of Fe dissolution indicated that the formation of TBARS is surface controlled. Results showing a high TBARS content in SHCa-1 but not in nontronite supernatant solutions was explained because the former contains distinct, soluble chemical component(s) that could (i) induce LP by its (their) own right and (ii) whose chemical affinity for organic ligands used as inhibitors is weak. Clays serve as stronger inductors than 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH) but are much weaker than FeSO4. The outcome of this work shows that LP is clay surface-controlled and dependent on clay structural composition. JF - Environmental Science & Technology AU - Kibanova, Daria AU - Nieto-Camacho, Antonio AU - Cervini-Silva, Javiera AD - Facultad de Qumica, Universidad Nacional Autnoma de Mxico, Instituto de Qumica, Universidad Nacional Autnoma de Mxico, Circuito Exterior s/n, Ciudad Universitaria, Coyoacan, Mexico, DF 04510, Mexico, Departamento de Procesos y Tecnologa, Divisin de Ciencias Naturales e Ingeniera, Universidad Autnoma Metropolitana, Unidad Cuajimalpa (UAM-C), Artificios No. 40, 6 Piso, C.P. 01120 Mxico, NASA Astrobiology Institute, and Earth Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, CA 94720 Y1 - 2009/08/21/ PY - 2009 DA - 2009 Aug 21 SP - 7550 EP - 7555 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 43 IS - 19 SN - 0013-936X, 0013-936X KW - Pollution Abstracts; Environment Abstracts KW - Clay KW - Lipids KW - Toxicity KW - Particulates KW - peroxidation KW - Minerals KW - Chemical analysis KW - oxidative stress KW - ENA 11:Non-Renewable Resources KW - P 6000:TOXICOLOGY AND HEALTH UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754542754?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Apollution&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Lipid+Peroxidation+Induced+by+Expandable+Clay+Minerals&rft.au=Kibanova%2C+Daria%3BNieto-Camacho%2C+Antonio%3BCervini-Silva%2C+Javiera&rft.aulast=Kibanova&rft.aufirst=Daria&rft.date=2009-08-21&rft.volume=43&rft.issue=19&rft.spage=7550&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes9007917 L2 - http://pubs.acs.org/doi/abs/10.1021/es9007917 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2013-09-09 N1 - SubjectsTermNotLitGenreText - Clay; Lipids; Particulates; Toxicity; peroxidation; Chemical analysis; Minerals; oxidative stress DO - http://dx.doi.org/10.1021/es9007917 ER - TY - JOUR T1 - Structures of the Ribosome in Intermediate States of Ratcheting AN - 20791456; 10874819 AB - Protein biosynthesis on the ribosome requires repeated cycles of ratcheting, which couples rotation of the two ribosomal subunits with respect to each other, and swiveling of the head domain of the small subunit. However, the molecular basis for how the two ribosomal subunits rearrange contacts with each other during ratcheting while remaining stably associated is not known. Here, we describe x-ray crystal structures of the intact Escherichia coli ribosome, either in the apo-form (3.5 angstrom resolution) or with one (4.0 angstrom resolution) or two (4.0 angstrom resolution) anticodon stem-loop tRNA mimics bound, that reveal intermediate states of intersubunit rotation. In the structures, the interface between the small and large ribosomal subunits rearranges in discrete steps along the ratcheting pathway. Positioning of the head domain of the small subunit is controlled by interactions with the large subunit and with the tRNA bound in the peptidyl-tRNA site. The intermediates observed here provide insight into how tRNAs move into the hybrid state of binding that precedes the final steps of mRNA and tRNA translocation. JF - Science (Washington) AU - Zhang, Wen AU - Dunkle, Jack A AU - Cate, Jamie HD AD - Departments of Molecular and Cell Biology and Chemistry, University of California at Berkeley, Berkeley, CA 94720, USA., jcate@lbl.gov Y1 - 2009/08/21/ PY - 2009 DA - 2009 Aug 21 SP - 1014 EP - 1017 PB - American Association for the Advancement of Science, 1200 New York Avenue, NW Washington DC 20005 USA, [mailto:membership@aaas.org], [URL:http://www.aaas.org] VL - 325 IS - 5943 SN - 0036-8075, 0036-8075 KW - Microbiology Abstracts B: Bacteriology; Biochemistry Abstracts 2: Nucleic Acids KW - Anticodons KW - tRNA KW - Escherichia coli KW - J 02330:Biochemistry KW - N 14830:RNA UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20791456?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Science+%28Washington%29&rft.atitle=Structures+of+the+Ribosome+in+Intermediate+States+of+Ratcheting&rft.au=Zhang%2C+Wen%3BDunkle%2C+Jack+A%3BCate%2C+Jamie+HD&rft.aulast=Zhang&rft.aufirst=Wen&rft.date=2009-08-21&rft.volume=325&rft.issue=5943&rft.spage=1014&rft.isbn=&rft.btitle=&rft.title=Science+%28Washington%29&rft.issn=00368075&rft_id=info:doi/10.1126%2Fscience.1175275 L2 - http://www.sciencemag.org/cgi/reprint/325/5943/1014.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-01 N1 - Last updated - 2014-02-21 N1 - SubjectsTermNotLitGenreText - tRNA; Escherichia coli DO - http://dx.doi.org/10.1126/science.1175275 ER - TY - JOUR T1 - Ultrafast growth of wadsleyite in shock-produced melts and its implications for early solar system impact processes AN - 1026862886; 2012-066721 AB - We observed micrometer-sized grains of wadsleyite, a high-pressure phase of (Mg,Fe) (sub 2) SiO (sub 4) , in the recovery products of a shock experiment. We infer these grains crystallized from shock-generated melt over a time interval of <1 mu s, the maximum time over which our experiment reached and sustained pressure sufficient to stabilize this phase. This rapid crystal growth rate ( nearly equal 1 m/s) suggests that, contrary to the conclusions of previous studies of the occurrence of high-pressure phases in shock-melt veins in strongly shocked meteorites, the growth of high-pressure phases from the melt during shock events is not diffusion-controlled. Another process, such as microturbulent transport, must be active in the crystal growth process. This result implies that the times necessary to crystallize the high-pressure phases in shocked meteorites may correspond to shock pressure durations achieved on impacts between objects 1-5 m in diameter and not, as previously inferred, nearly equal 1-5 km in diameter. These results may also provide another pathway for syntheses, via shock recovery, of some high-value, high-pressure phases. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Tschauner, Oliver AU - Asimow, Paul D AU - Kostandova, Natalya AU - Ahrens, Thomas J AU - Ma, Chi AU - Sinogeikin, Stanislas AU - Liu, Zhenxian AU - Fakra, Sirine AU - Tamura, Nobumichi Y1 - 2009/08/18/ PY - 2009 DA - 2009 Aug 18 SP - 13691 EP - 13695 PB - National Academy of Sciences, Washington, DC VL - 106 IS - 33 SN - 0027-8424, 0027-8424 KW - silicates KW - infrared microscopy data KW - X-ray diffraction data KW - olivine group KW - crystal growth KW - melts KW - infrared spectra KW - meteorites KW - polymorphism KW - wadsleyite KW - orthosilicates KW - spectra KW - glass materials KW - synthetic materials KW - experimental studies KW - pressure KW - impacts KW - veins KW - metamorphism KW - high pressure KW - early solar system KW - nesosilicates KW - crystallization KW - shock metamorphism KW - backscattering KW - geophysics KW - 01B:Mineralogy of silicates KW - 04:Extraterrestrial geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1026862886?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=Ultrafast+growth+of+wadsleyite+in+shock-produced+melts+and+its+implications+for+early+solar+system+impact+processes&rft.au=Tschauner%2C+Oliver%3BAsimow%2C+Paul+D%3BKostandova%2C+Natalya%3BAhrens%2C+Thomas+J%3BMa%2C+Chi%3BSinogeikin%2C+Stanislas%3BLiu%2C+Zhenxian%3BFakra%2C+Sirine%3BTamura%2C+Nobumichi&rft.aulast=Tschauner&rft.aufirst=Oliver&rft.date=2009-08-18&rft.volume=106&rft.issue=33&rft.spage=13691&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.0905751106 L2 - http://www.pnas.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2012, American Geosciences Institute. N1 - Date revised - 2012-01-01 N1 - Number of references - 32 N1 - PubXState - DC N1 - Document feature - illus. N1 - Last updated - 2012-07-19 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - backscattering; crystal growth; crystallization; early solar system; experimental studies; geophysics; glass materials; high pressure; impacts; infrared microscopy data; infrared spectra; melts; metamorphism; meteorites; nesosilicates; olivine group; orthosilicates; polymorphism; pressure; shock metamorphism; silicates; spectra; synthetic materials; veins; wadsleyite; X-ray diffraction data DO - http://dx.doi.org/10.1073/pnas.0905751106 ER - TY - CPAPER T1 - Impact of Gas-Diffusion Layer Wettability on Polymer-Electrolyte-Fuel-Cell Performance T2 - 60th Annual Meeting of the International Society of Electrochemistry AN - 42303869; 5339756 DE: JF - 60th Annual Meeting of the International Society of Electrochemistry AU - Weber, Adam Y1 - 2009/08/16/ PY - 2009 DA - 2009 Aug 16 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42303869?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=60th+Annual+Meeting+of+the+International+Society+of+Electrochemistry&rft.atitle=Impact+of+Gas-Diffusion+Layer+Wettability+on+Polymer-Electrolyte-Fuel-Cell+Performance&rft.au=Weber%2C+Adam&rft.aulast=Weber&rft.aufirst=Adam&rft.date=2009-08-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=60th+Annual+Meeting+of+the+International+Society+of+Electrochemistry&rft.issn=&rft_id=info:doi/ L2 - http://event09.ise-online.org/program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-18 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - In Situ Studies of Interfacial Processes on Sn Anodes in Organic Electrolytes T2 - 60th Annual Meeting of the International Society of Electrochemistry AN - 42302339; 5339886 JF - 60th Annual Meeting of the International Society of Electrochemistry AU - Kostecki, Robert Y1 - 2009/08/16/ PY - 2009 DA - 2009 Aug 16 KW - Electrolytes KW - Anodes KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42302339?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=60th+Annual+Meeting+of+the+International+Society+of+Electrochemistry&rft.atitle=In+Situ+Studies+of+Interfacial+Processes+on+Sn+Anodes+in+Organic+Electrolytes&rft.au=Kostecki%2C+Robert&rft.aulast=Kostecki&rft.aufirst=Robert&rft.date=2009-08-16&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=60th+Annual+Meeting+of+the+International+Society+of+Electrochemistry&rft.issn=&rft_id=info:doi/ L2 - http://event09.ise-online.org/program.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-18 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The dynamics of organization and reorganization during protein self-assembly and mineralization T2 - 2010 Gordon Research Conference on Biomineralization AN - 754213471; 5775291 JF - 2010 Gordon Research Conference on Biomineralization AU - De Yoreo, Jim Y1 - 2009/08/15/ PY - 2009 DA - 2009 Aug 15 KW - Mineralization KW - Self-assembly KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754213471?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2010+Gordon+Research+Conference+on+Biomineralization&rft.atitle=The+dynamics+of+organization+and+reorganization+during+protein+self-assembly+and+mineralization&rft.au=De+Yoreo%2C+Jim&rft.aulast=De+Yoreo&rft.aufirst=Jim&rft.date=2009-08-15&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2010+Gordon+Research+Conference+on+Biomineralization&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2010&program=biomin LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-02 N1 - Last updated - 2010-09-25 ER - TY - JOUR T1 - Critical issues in the formation of quantum computer test structures by ion implantation AN - 20773187; 10309116 AB - The formation of quantum computer test structures in silicon by ion implantation enables the characterization of spin readout mechanisms with ensembles of dopant atoms and the development of single atom devices. We briefly review recent results in the characterization of spin dependent transport and single ion doping and then discuss the diffusion and segregation behaviour of phosphorus, antimony and bismuth ions from low fluence, low energy implantations as characterized through depth profiling by secondary ion mass spectrometry (SIMS). Both phosphorus and bismuth are found to segregate to the SiO sub(2)/Si interface during activation anneals, while antimony diffusion is found to be minimal. An effect of the ion charge state on the range of antimony ions, super(1) super(2) super(1)Sb super(2) super(5) super(+), in SiO sub(2)/Si is also discussed. JF - Nuclear Instruments & Methods in Physics Research. Section B. Beam Interactions with Materials and Atoms AU - Schenkel, T AU - Lo, C C AU - Weis, C D AU - Schuh, A AU - Persaud, A AU - Bokor, J AD - E.O. Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States, T_Schenkel@lbl.gov Y1 - 2009/08/15/ PY - 2009 DA - 2009 Aug 15 SP - 2563 EP - 2566 PB - Elsevier Science, P.O. Box 211 Amsterdam 1000 AE Netherlands, [mailto:nlinfo-f@elsevier.nl], [URL:http://www.elsevier.nl/] VL - 267 IS - 16 SN - 0168-583X, 0168-583X KW - Biotechnology and Bioengineering Abstracts KW - Ions KW - Silicon KW - Computers KW - Reviews KW - Energy KW - Antimony KW - Phosphorus KW - Diffusion KW - Mass spectroscopy KW - W 30965:Miscellaneous, Reviews UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20773187?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nuclear+Instruments+%26+Methods+in+Physics+Research.+Section+B.+Beam+Interactions+with+Materials+and+Atoms&rft.atitle=Critical+issues+in+the+formation+of+quantum+computer+test+structures+by+ion+implantation&rft.au=Schenkel%2C+T%3BLo%2C+C+C%3BWeis%2C+C+D%3BSchuh%2C+A%3BPersaud%2C+A%3BBokor%2C+J&rft.aulast=Schenkel&rft.aufirst=T&rft.date=2009-08-15&rft.volume=267&rft.issue=16&rft.spage=2563&rft.isbn=&rft.btitle=&rft.title=Nuclear+Instruments+%26+Methods+in+Physics+Research.+Section+B.+Beam+Interactions+with+Materials+and+Atoms&rft.issn=0168583X&rft_id=info:doi/10.1016%2Fj.nimb.2009.05.061 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-08-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Ions; Silicon; Energy; Reviews; Computers; Phosphorus; Antimony; Diffusion; Mass spectroscopy DO - http://dx.doi.org/10.1016/j.nimb.2009.05.061 ER - TY - JOUR T1 - Structural Insights into the Binding of Uranyl with Human Serum Protein Apotransferrin Structure and Spectra of Protein-Uranyl Interactions AN - 754548762; 13301111 AB - Ab initio quantum mechanical computational studies for the structure and IR spectra of the uranyl complex with human serum apotransferrin (TF) protein are carried out to model uranyl intake into the human cell through endocytosis and formation of a coordination complex with the protein binding sites. The computed IR spectra and structure of the uranyl-protein complex facilitate interpretation of the observed spectra and confirm the primary binding sites of the transferrin protein with the uranyl ion. Our computed equilibrium geometry and the IR spectra of the uranyl-TF complex reveal that uranyl ion is bound to two tyrosines, one aspartate group, and one carbonate ion. Our IR spectra indicate that histidine is not involved in binding to uranyl with transferrin protein. Our computations reveal a short, strong hydrogen bond, which could play an important role in the stabilization and formation of the uranyl-TF complex. Computed Laplacian charge plots indicate high chemical reactivity on this complex as both an electrophile and a nucleophile, facilitating binding to different receptors and thus entry into a number of target organs and the blood-brain barrier. The Mulliken charge density plots and the three-dimensional charge density plots suggest a donor-acceptor mechanism in the complex formation. JF - Chemical Research in Toxicology AU - Benavides-Garcia, Maria G AU - Balasubramanian, Krishnan AD - Department of Natural Sciences, University of Houston--Downtown, Houston, Texas 77002, College of Science, California State University, East Bay, Hayward, California 94542, Chemistry and Material Science Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550, and Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 Y1 - 2009/08/13/ PY - 2009 DA - 2009 Aug 13 SP - 1613 EP - 1621 PB - American Chemical Society, P.O. Box 182426 Columbus OH 43218-2426 USA VL - 22 IS - 9 SN - 0893-228X, 0893-228X KW - Toxicology Abstracts KW - Nucleophiles KW - Endocytosis KW - Transferrin KW - Hydrogen bonding KW - Blood-brain barrier KW - Histidine KW - Tyrosine KW - apotransferrin KW - Computer applications KW - carbonates KW - Serum proteins KW - X 24360:Metals UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754548762?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxicologyabstracts&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Chemical+Research+in+Toxicology&rft.atitle=Structural+Insights+into+the+Binding+of+Uranyl+with+Human+Serum+Protein+Apotransferrin+Structure+and+Spectra+of+Protein-Uranyl+Interactions&rft.au=Benavides-Garcia%2C+Maria+G%3BBalasubramanian%2C+Krishnan&rft.aulast=Benavides-Garcia&rft.aufirst=Maria&rft.date=2009-08-13&rft.volume=22&rft.issue=9&rft.spage=1613&rft.isbn=&rft.btitle=&rft.title=Chemical+Research+in+Toxicology&rft.issn=0893228X&rft_id=info:doi/10.1021%2Ftx900184r LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Endocytosis; Nucleophiles; Transferrin; Blood-brain barrier; Hydrogen bonding; Histidine; Tyrosine; apotransferrin; Computer applications; carbonates; Serum proteins DO - http://dx.doi.org/10.1021/tx900184r ER - TY - JOUR T1 - Coupled Factors Influencing Concentration-Dependent Colloid Transport and Retention in Saturated Porous Media AN - 918041764; 13267966 AB - The coupled influence of input suspension concentration (Ci), ionic strength (IS), and hydrodynamics on the transport and retention of 1.1 *mm carboxyl-modified latex colloids in saturated quartz sand (150 *mm) under unfavorable attachment conditions (pH 10) was investigated. The percentage of retained colloids in column experiments decreased with Ci at intermediate IS conditions (31 or 56 mM) when colloids were weakly associated with the solid phase by a shallow secondary energy minima. In contrast, the effects of Ci on colloid retention were absent when IS was too low (6 mM) or too high (106 mM). The concentration effects under intermediate IS conditions were dependent on the system hydrodynamics, magnitude of Ci, and injection order of Ci, but they were largely independent of the input colloid mass. These observations were explained in part by time- and concentration-dependent filling of retention sites. Only a small fraction of the solid surface area was found to contribute to retention when IS was 31 mM, and micromodel observations indicated that colloid retention was enhanced in lower velocity regions of the pore space that occurred near grain-grain contacts. Consequently, retention profiles for IS = 31 mM conditions were increasingly nonexponential at lower values of Ci (during filling), whereas the observed concentration effect was largely eliminated as retention locations became filled. In addition, micromodel observations indicated that liquid and solid phase mass transfer of colloids to retention locations was influenced by Ci under intermediate IS conditions. Higher values of Ci are expected to produce less relative mass transfer to retention locations due to increased numbers of collisions that knock weakly associated colloids off the solid phase. Hence, the concentration effects were found to be largely independent of input colloid mass during filling of retention sites. JF - Environmental Science & Technology AU - Bradford, Scott A AU - Kim, Hyunjung N AU - Haznedaroglu, Berat Z AU - Torkzaban, Saeed AU - Walker, Sharon L AD - United States Department of Agriculture, Agricultural Research Service, United States Salinity Laboratory, Riverside, CA 92507, Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, and Earth Sciences Division, Lawrence, Berkeley National Laboratory, Berkeley, CA 94720 Y1 - 2009/08/11/ PY - 2009 DA - 2009 Aug 11 SP - 6996 EP - 7002 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 43 IS - 18 SN - 0013-936X, 0013-936X KW - Environment Abstracts KW - Colloids KW - Hydrodynamics KW - Velocity KW - Sand KW - latex KW - pH KW - surface area KW - ENA 07:General UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/918041764?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aenvabstractsmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+Science+%26+Technology&rft.atitle=Coupled+Factors+Influencing+Concentration-Dependent+Colloid+Transport+and+Retention+in+Saturated+Porous+Media&rft.au=Bradford%2C+Scott+A%3BKim%2C+Hyunjung+N%3BHaznedaroglu%2C+Berat+Z%3BTorkzaban%2C+Saeed%3BWalker%2C+Sharon+L&rft.aulast=Bradford&rft.aufirst=Scott&rft.date=2009-08-11&rft.volume=43&rft.issue=18&rft.spage=6996&rft.isbn=&rft.btitle=&rft.title=Environmental+Science+%26+Technology&rft.issn=0013936X&rft_id=info:doi/10.1021%2Fes900840d L2 - http://pubs.acs.org/doi/abs/10.1021/es900840d LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2012-01-01 N1 - Last updated - 2012-03-29 N1 - SubjectsTermNotLitGenreText - Hydrodynamics; Colloids; Sand; Velocity; latex; pH; surface area DO - http://dx.doi.org/10.1021/es900840d ER - TY - CPAPER T1 - Combinatorial microenvironments regulate mammary progenitor cell fate T2 - Engineering Cell Biology III AN - 40407325; 5304063 JF - Engineering Cell Biology III AU - LaBarge, Mark Y1 - 2009/08/09/ PY - 2009 DA - 2009 Aug 09 KW - Microenvironments KW - Stem cells KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40407325?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Options+Traders+Bullish+on+%27Call+of+Duty%27&rft.au=Dieterich%2C+Chris&rft.aulast=Dieterich&rft.aufirst=Chris&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.engconfintl.org/9akfin.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Dissecting the Role of Laminin-111 in Promoting Mammary Epithelial Structure and Function T2 - Engineering Cell Biology III AN - 40398220; 5304075 JF - Engineering Cell Biology III AU - Ghajar, Cyrus Y1 - 2009/08/09/ PY - 2009 DA - 2009 Aug 09 KW - Structure-function relationships KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40398220?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.atitle=Wavelength+dependent+oxygen+isotopic+fractionation+in+the+VUV+photodissociation+of+CO%3B+an+early+solar+system+perspective&rft.au=Chakraborty%2C+Subrata%3BDavis%2C+Ryan%3BAhmed%2C+Musahid%3BJackson%2C+Teresa+L%3BThiemens%2C+M+H%3BAnonymous&rft.aulast=Chakraborty&rft.aufirst=Subrata&rft.date=2010-01-01&rft.volume=41&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Abstracts+of+Papers+Submitted+to+the+Lunar+and+Planetary+Science+Conference&rft.issn=&rft_id=info:doi/ L2 - http://www.engconfintl.org/9akfin.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Progress in elucidating the structural basis of function in the carboxysome T2 - 13th International Symposium on Phototrophic Prokaryotes (ISPP 2009) AN - 40302954; 5246358 JF - 13th International Symposium on Phototrophic Prokaryotes (ISPP 2009) AU - Kerfeld, Cheryl AU - Klein, Michael AU - Kinney, James AU - Bagby, Sarah AU - Heinhorst, Sabine AU - Cai, Fei AU - Cannon, Gordon AU - Chisholm, Sallie Y1 - 2009/08/09/ PY - 2009 DA - 2009 Aug 09 KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40302954?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=13th+International+Symposium+on+Phototrophic+Prokaryotes+%28ISPP+2009%29&rft.atitle=Progress+in+elucidating+the+structural+basis+of+function+in+the+carboxysome&rft.au=Kerfeld%2C+Cheryl%3BKlein%2C+Michael%3BKinney%2C+James%3BBagby%2C+Sarah%3BHeinhorst%2C+Sabine%3BCai%2C+Fei%3BCannon%2C+Gordon%3BChisholm%2C+Sallie&rft.aulast=Kerfeld&rft.aufirst=Cheryl&rft.date=2009-08-09&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=13th+International+Symposium+on+Phototrophic+Prokaryotes+%28ISPP+2009%29&rft.issn=&rft_id=info:doi/ L2 - http://iseventsolutions.com/ispp2009/index.php?option=com_content&view =article&id=22&Itemid=13 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Laboratory investigations of Titan chemistry T2 - 42th Congress of the International Union of Pure and Applied Chemistry (IUPAC 2009) AN - 42441382; 5414229 JF - 42th Congress of the International Union of Pure and Applied Chemistry (IUPAC 2009) AU - Leone, Stephen AU - Goulay, Fabien AU - Trevitt, Adam AU - Soorkia, Satchin AU - Wilson, Kevin Y1 - 2009/08/02/ PY - 2009 DA - 2009 Aug 02 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/42441382?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=The+State+of+Religion+in+College+Basketball&rft.au=Anonymous&rft.aulast=Anonymous&rft.aufirst=&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.rsc.org/ConferencesAndEvents/RSCConferences/IUPAC2009/Scien tificProgramme/index.asp LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-04-06 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Formaldehyde and other volatile organic chemical emissions in four FEMA temporary housing units. AN - 67638118; 19731654 AB - Indoor concentrations of 33 volatile organic chemicals were measured in four unoccupied temporary housing units (THUs) belonging to the U.S. Federal Emergency Management Administration (FEMA). The highest level contaminants in the THUs include formaldehyde, acetic acid, and 2,2,4-trimethyl-1,3-pentanediol diisobutyrate (TXIB) with median concentrations of 440, 425, and 36 ppb, respectively. A number of volatile organic compounds (VOCs) were higher than published concentrations in other dwellings, but whole THU emission factors for most chemicals were either lower than or similar to values reported for newly constructed homes. However, several chemicals exceeded previously measured new building emission rates by over a factor of 5. Materials were collected from the THUs, and emission factors were determined using small chambers to identify the potential source of indoor contaminants. The individual materials were grouped by material type, and emissions were used to derive exposure concentrations for comparison to reference values. Using material loading factors and ventilation rates that are relevant to the trailers, all of the material types we tested had at least two chemicals (formaldehyde and nonanal) with derived concentrations in excess of chronic reference exposure levels or odor thresholds. The extensive use of composite wood products, sealants, and vinyl coverings, combined with the low air exchange rates relative to material surface areas, may explain the high concentrations of some VOCs and formaldehyde. JF - Environmental science & technology AU - Maddalena, Randy AU - Russell, Marion AU - Sullivan, Douglas P AU - Apte, Michael G AD - Indoor Environment Department, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road (Mail Stop 70-108b), Berkeley, California 94720, USA. rlmaddalena@lbl.gov Y1 - 2009/08/01/ PY - 2009 DA - 2009 Aug 01 SP - 5626 EP - 5632 VL - 43 IS - 15 SN - 0013-936X, 0013-936X KW - Air Pollutants KW - 0 KW - Butyrates KW - Environmental Pollutants KW - Vehicle Emissions KW - Volatile Organic Compounds KW - Formaldehyde KW - 1HG84L3525 KW - Acetic Acid KW - Q40Q9N063P KW - Index Medicus KW - Reference Values KW - Vehicle Emissions -- toxicity KW - Ventilation KW - Acetic Acid -- analysis KW - Environmental Exposure KW - Environmental Pollutants -- analysis KW - Butyrates -- analysis KW - Air Pollutants -- analysis KW - Time Factors KW - Air Pollution, Indoor -- analysis KW - Housing KW - Formaldehyde -- analysis KW - Volatile Organic Compounds -- analysis KW - Environmental Monitoring -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67638118?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Formaldehyde+and+other+volatile+organic+chemical+emissions+in+four+FEMA+temporary+housing+units.&rft.au=Maddalena%2C+Randy%3BRussell%2C+Marion%3BSullivan%2C+Douglas+P%3BApte%2C+Michael+G&rft.aulast=Maddalena&rft.aufirst=Randy&rft.date=2009-08-01&rft.volume=43&rft.issue=15&rft.spage=5626&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-10-19 N1 - Date created - 2009-09-07 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Indoor thermal factors and symptoms in office workers: findings from the US EPA BASE study. AN - 67517198; 19302503 AB - UNLABELLEDSome prior research in office buildings has associated higher indoor temperatures even within the recommended thermal comfort range with increased worker symptoms. We reexamined this relationship in data from 95 office buildings in the US Environmental Protection Agency's Building Assessment Survey and Evaluation Study. We investigated relationships between building-related symptoms and thermal metrics constructed from real-time measurements. We estimated odds ratios and 95% confidence intervals in adjusted logistic regression models with general estimating equations, overall and by season. Winter indoor temperatures spanned the recommended winter comfort range; summer temperatures were mostly colder than the recommended summer range. Increasing indoor temperatures, overall, were associated with increases in few symptoms. Higher winter indoor temperatures, however, were associated with increases in all symptoms analyzed. Higher summer temperatures, above 23 degrees C, were associated with decreases in most symptoms. Humidity ratio, a metric of absolute humidity, showed few clear associations. Thus, increased symptoms with higher temperatures within the thermal comfort range were found only in winter. In summer, buildings were overcooled, and only the higher observed temperatures were within the comfort range; these were associated with decreased symptoms. Confirmation of these findings would suggest that thermal management guidelines consider health effects as well as comfort, and that less conditioning of buildings in both winter and summer may have unexpected health benefits.PRACTICAL IMPLICATIONSIn winter, higher temperatures within the thermal comfort range are common in US office buildings and may be associated with increased symptoms. In summer, temperatures below the thermal comfort range are common and may be associated with increased symptoms. Results from this large study thus suggest that in US office buildings, less winter heating (in buildings that are in heating mode) and less summer cooling may reduce acute symptoms while providing substantial energy conservation benefits, with no expected thermal comfort penalty and, in summer, even thermal comfort benefits. If confirmed, this would be welcome news. JF - Indoor air AU - Mendell, M J AU - Mirer, A G AD - Indoor Environment Department, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. mjmendell@lbl.gov Y1 - 2009/08// PY - 2009 DA - August 2009 SP - 291 EP - 302 VL - 19 IS - 4 KW - Index Medicus KW - United States KW - Odds Ratio KW - United States Environmental Protection Agency KW - Humans KW - Risk Management KW - Data Collection KW - Multivariate Analysis KW - Temperature KW - Commerce KW - Sick Building Syndrome -- epidemiology KW - Respiratory Insufficiency -- physiopathology KW - Respiratory Insufficiency -- epidemiology KW - Sick Building Syndrome -- physiopathology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67517198?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Indoor+air&rft.atitle=Indoor+thermal+factors+and+symptoms+in+office+workers%3A+findings+from+the+US+EPA+BASE+study.&rft.au=Mendell%2C+M+J%3BMirer%2C+A+G&rft.aulast=Mendell&rft.aufirst=M&rft.date=2009-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-11-04 N1 - Date created - 2009-07-24 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 DO - http://dx.doi.org/10.1111/j.1600-0668.2009.00592.x ER - TY - CPAPER T1 - Synthesis of phenylpropanoid-esters and -amides in Arabidopsis thaliana to engineer a cleavable lignin T2 - 2009 Gordon-Kenan Research Seminar on Plant Cell Walls AN - 40415020; 5302825 JF - 2009 Gordon-Kenan Research Seminar on Plant Cell Walls AU - Pradhan, Prajakta Y1 - 2009/08/01/ PY - 2009 DA - 2009 Aug 01 KW - Lignin KW - Arabidopsis thaliana KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40415020?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Gordon-Kenan+Research+Seminar+on+Plant+Cell+Walls&rft.atitle=Synthesis+of+phenylpropanoid-esters+and+-amides+in+Arabidopsis+thaliana+to+engineer+a+cleavable+lignin&rft.au=Pradhan%2C+Prajakta&rft.aulast=Pradhan&rft.aufirst=Prajakta&rft.date=2009-08-01&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Gordon-Kenan+Research+Seminar+on+Plant+Cell+Walls&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2009&program=grad_pcw LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Robust, high-throughput solution structural analyses by small angle X-ray scattering (SAXS) AN - 21169013; 11223383 AB - We present an efficient pipeline enabling high-throughput analysis of protein structure in solution with small angle X-ray scattering (SAXS). Our SAXS pipeline combines automated sample handling of microliter volumes, temperature and anaerobic control, rapid data collection and data analysis, and couples structural analysis with automated archiving. We subjected 50 representative proteins, mostly from Pyrococcus furiosus, to this pipeline and found that 30 were multimeric structures in solution. SAXS analysis allowed us to distinguish aggregated and unfolded proteins, define global structural parameters and oligomeric states for most samples, identify shapes and similar structures for 25 unknown structures, and determine envelopes for 41 proteins. We believe that high-throughput SAXS is an enabling technology that may change the way that structural genomics research is done. JF - Nature Methods AU - Hura, Greg L AU - Menon, Angeli L AU - Hammel, Michal AU - Rambo, Robert P AU - Poole II, Farris L AU - Tsutakawa, Susan E AU - Jenney Jr, Francis E AU - Classen, Scott AU - Frankel, Kenneth A AU - Hopkins, Robert C AU - Yang, Sung-jae AU - Scott, Joseph W AU - Dillard, Bret D AU - Adams, Michael W W AU - Tainer, John A AD - Life Science Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2009/08// PY - 2009 DA - Aug 2009 SP - 606 EP - 612 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 6 IS - 8 SN - 1548-7091, 1548-7091 KW - Microbiology Abstracts B: Bacteriology KW - Temperature effects KW - Protein structure KW - Envelopes KW - Data processing KW - Protein folding KW - X-ray scattering KW - Data collections KW - genomics KW - Pyrococcus furiosus KW - J 02300:Methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21169013?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Amicrobiologyb&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Methods&rft.atitle=Robust%2C+high-throughput+solution+structural+analyses+by+small+angle+X-ray+scattering+%28SAXS%29&rft.au=Hura%2C+Greg+L%3BMenon%2C+Angeli+L%3BHammel%2C+Michal%3BRambo%2C+Robert+P%3BPoole+II%2C+Farris+L%3BTsutakawa%2C+Susan+E%3BJenney+Jr%2C+Francis+E%3BClassen%2C+Scott%3BFrankel%2C+Kenneth+A%3BHopkins%2C+Robert+C%3BYang%2C+Sung-jae%3BScott%2C+Joseph+W%3BDillard%2C+Bret+D%3BAdams%2C+Michael+W+W%3BTainer%2C+John+A&rft.aulast=Hura&rft.aufirst=Greg&rft.date=2009-08-01&rft.volume=6&rft.issue=8&rft.spage=606&rft.isbn=&rft.btitle=&rft.title=Nature+Methods&rft.issn=15487091&rft_id=info:doi/10.1038%2Fnmeth.1353 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2013-10-04 N1 - SubjectsTermNotLitGenreText - Protein structure; Temperature effects; Data processing; Envelopes; Protein folding; X-ray scattering; genomics; Data collections; Pyrococcus furiosus DO - http://dx.doi.org/10.1038/nmeth.1353 ER - TY - JOUR T1 - Label-free in situ imaging of lignification in the cell wall of low lignin transgenic Populus trichocarpa AN - 21074441; 10989112 AB - Chemical imaging by confocal Raman microscopy has been used for the visualization of the cellulose and lignin distribution in wood cell walls. Lignin reduction in wood can be achieved by, for example, transgenic suppression of a monolignol biosynthesis gene encoding 4-coumarate-CoA ligase (4CL). Here, we use confocal Raman microscopy to compare lignification in wild type and lignin-reduced 4CL transgenic Populus trichocarpa stem wood with spatial resolution that is sub-I14m. Analyzing the lignin Raman bands in the spectral region between 1,600 and 1,700 cm super(a1), differences in lignin signal intensity and localization are mapped in situ. Transgenic reduction of lignin is particularly pronounced in the S2 wall layer of fibers, suggesting that such transgenic approach may help overcome cell wall recalcitrance to wood saccharification. Spatial heterogeneity in the lignin composition, in particular with regard to ethylenic residues, is observed in both samples. Electronic supplementary material The online version of this article (doi:10.1007/s00425-009-0963-x) contains supplementary material, which is available to authorized users. JF - Planta AU - Schmidt, M AU - Schwartzberg, A M AU - Perera, P N AU - Weber-Bargioni, A AU - Carroll, A AU - Sarkar, P AU - Bosneaga, E AU - Urban, J J AU - Song, J AU - Balakshin, MY AU - Capanema, E A AU - Auer, M AU - Adams, P D AU - Chiang, V L AU - Schuck, PJames AD - Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA, PJSchuck@lbl.gov Y1 - 2009/08// PY - 2009 DA - Aug 2009 SP - 589 EP - 597 PB - Springer-Verlag, Tiergartenstrasse 17 Heidelberg 69121 Germany VL - 230 IS - 3 SN - 0032-0935, 0032-0935 KW - Genetics Abstracts; Biotechnology and Bioengineering Abstracts KW - Populus trichocarpa (black cottonwood) KW - Cell wall KW - Lignin KW - Microspectroscopy KW - Raman imaging KW - Transgenic KW - Fibers KW - Populus trichocarpa KW - Cellulose KW - Spatial heterogeneity KW - spatial discrimination KW - imaging KW - Cell walls KW - 4-Coumarate-CoA ligase KW - W 30910:Imaging KW - G 07800:Plants and Algae UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21074441?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Abiotechresearch&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Planta&rft.atitle=Label-free+in+situ+imaging+of+lignification+in+the+cell+wall+of+low+lignin+transgenic+Populus+trichocarpa&rft.au=Schmidt%2C+M%3BSchwartzberg%2C+A+M%3BPerera%2C+P+N%3BWeber-Bargioni%2C+A%3BCarroll%2C+A%3BSarkar%2C+P%3BBosneaga%2C+E%3BUrban%2C+J+J%3BSong%2C+J%3BBalakshin%2C+MY%3BCapanema%2C+E+A%3BAuer%2C+M%3BAdams%2C+P+D%3BChiang%2C+V+L%3BSchuck%2C+PJames&rft.aulast=Schmidt&rft.aufirst=M&rft.date=2009-08-01&rft.volume=230&rft.issue=3&rft.spage=589&rft.isbn=&rft.btitle=&rft.title=Planta&rft.issn=00320935&rft_id=info:doi/10.1007%2Fs00425-009-0963-x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-12-01 N1 - Last updated - 2015-03-30 N1 - SubjectsTermNotLitGenreText - Fibers; Spatial heterogeneity; Cellulose; Lignin; spatial discrimination; imaging; 4-Coumarate-CoA ligase; Cell walls; Populus trichocarpa DO - http://dx.doi.org/10.1007/s00425-009-0963-x ER - TY - JOUR T1 - Three-dimensional nanopillar-array photovoltaics on low-cost and flexible substrates AN - 21063581; 10988725 AB - Solar energy represents one of the most abundant and yet least harvested sources of renewable energy. In recent years, tremendous progress has been made in developing photovoltaics that can be potentially mass deployed. Of particular interest to cost-effective solar cells is to use novel device structures and materials processing for enabling acceptable efficiencies. In this regard, here, we report the direct growth of highly regular, single-crystalline nanopillar arrays of optically active semiconductors on aluminium substrates that are then configured as solar-cell modules. As an example, we demonstrate a photovoltaic structure that incorporates three-dimensional, single-crystalline n-CdS nanopillars, embedded in polycrystalline thin films of p-CdTe, to enable high absorption of light and efficient collection of the carriers. Through experiments and modelling, we demonstrate the potency of this approach for enabling highly versatile solar modules on both rigid and flexible substrates with enhanced carrier collection efficiency arising from the geometric configuration of the nanopillars. JF - Nature Materials AU - Fan, Zhiyong AU - Razavi, Haleh AU - Do, Jae-won AU - Moriwaki, Aimee AU - Ergen, Onur AU - Chueh, Yu-Lun AU - Leu, Paul W AU - Ho, Johnny C AU - Takahashi, Toshitake AU - Reichertz, Lothar A AU - Neale, Steven AU - Yu, Kyoungsik AU - Wu, Ming AU - Ager, Joel W AU - Javey, Ali AD - [1] Department of Electrical Engineering and Computer Sciences, University of California at Berkeley, Berkeley, California 94720, USA [2] Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA [3] Berkeley Sensor and Actuator Center, University of California at Berkeley, Berkeley, California 94720, USA Y1 - 2009/08// PY - 2009 DA - Aug 2009 SP - 648 EP - 653 PB - Nature Publishing Group, The Macmillan Building London N1 9XW UK VL - 8 IS - 8 SN - 1476-1122, 1476-1122 KW - Sustainability Science Abstracts KW - Photovoltaics KW - Efficiency KW - Renewable energy KW - solar cells KW - Economics KW - Aluminum KW - Absorption KW - Solar energy UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21063581?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Nature+Materials&rft.atitle=Three-dimensional+nanopillar-array+photovoltaics+on+low-cost+and+flexible+substrates&rft.au=Fan%2C+Zhiyong%3BRazavi%2C+Haleh%3BDo%2C+Jae-won%3BMoriwaki%2C+Aimee%3BErgen%2C+Onur%3BChueh%2C+Yu-Lun%3BLeu%2C+Paul+W%3BHo%2C+Johnny+C%3BTakahashi%2C+Toshitake%3BReichertz%2C+Lothar+A%3BNeale%2C+Steven%3BYu%2C+Kyoungsik%3BWu%2C+Ming%3BAger%2C+Joel+W%3BJavey%2C+Ali&rft.aulast=Fan&rft.aufirst=Zhiyong&rft.date=2009-08-01&rft.volume=8&rft.issue=8&rft.spage=648&rft.isbn=&rft.btitle=&rft.title=Nature+Materials&rft.issn=14761122&rft_id=info:doi/10.1038%2Fnmat2493 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-11-01 N1 - Last updated - 2011-12-14 N1 - SubjectsTermNotLitGenreText - Photovoltaics; Efficiency; Aluminum; Economics; Absorption; Solar energy; solar cells; Renewable energy DO - http://dx.doi.org/10.1038/nmat2493 ER - TY - JOUR T1 - Drought Resilience of the California Central Valley Surface-Ground-Water-Conveyance System AN - 20789524; 10865582 AB - A series of drought simulations were performed for the California Central Valley using computer applications developed by the California Department of Water Resources and historical datasets representing a range of droughts from mild to severe for time periods lasting up to 60 years. Land use, agricultural cropping patterns, and water demand were held fixed at the 2003 level and water supply was decreased by amounts ranging between 25 and 50%, representing light to severe drought types. Impacts were examined for four hydrologic subbasins, the Sacramento Basin, the San Joaquin Basin, the Tulare Basin, and the Eastside Drainage. Results suggest the greatest impacts are in the San Joaquin and Tulare Basins, regions that are heavily irrigated and are presently overdrafted in most years. Regional surface water diversions decrease by as much as 70%. Stream-to-aquifer flows and aquifer storage declines were proportional to drought severity. Most significant was the decline in ground water head for the severe drought cases, where results suggest that under these scenarios the water table is unlikely to recover within the 30-year model-simulated future. However, the overall response to such droughts is not as severe as anticipated and the Sacramento Basin may act as ground-water insurance to sustain California during extended dry periods. JF - Journal of the American Water Resources Association AU - Miller, N L AU - Dale, L L AU - Brush, C F AU - Vicuna, S D AU - Kadir, T N AU - Dogrul, E C AU - Chung, F I AD - Climate Science Department, Berkeley National Laboratory and Geography Department, University of California, Berkeley, California 90-1116, USA, nlmiller@lbl.gov Y1 - 2009/08// PY - 2009 DA - Aug 2009 SP - 857 EP - 866 VL - 45 IS - 4 SN - 1093-474X, 1093-474X KW - Environment Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts; Aqualine Abstracts; Water Resources Abstracts KW - Aquifers KW - USA, California, San Joaquin Basin KW - Surface water KW - Basins KW - Water resources KW - Water table KW - Surface Water KW - Drought KW - Freshwater KW - USA, California, Tulare Basin KW - Aquifer storage KW - Hydrologic Models KW - Ground water KW - Hydrology KW - water demand KW - Droughts KW - Dry periods KW - Water Demand KW - USA, California, Sacramento KW - Drainage KW - Catchment Areas KW - Groundwater flow KW - Simulation KW - Land use KW - Water supply KW - water table KW - Numerical simulations KW - Groundwater KW - USA, California, Central Valley KW - Diversion KW - AQ 00001:Water Resources and Supplies KW - ENA 06:Food & Drugs KW - Q2 09171:Dynamics of lakes and rivers KW - M2 556.14:Infiltration/Soil Moisture (556.14) KW - SW 4040:Water demand UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/20789524?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Journal+of+the+American+Water+Resources+Association&rft.atitle=Drought+Resilience+of+the+California+Central+Valley+Surface-Ground-Water-Conveyance+System&rft.au=Miller%2C+N+L%3BDale%2C+L+L%3BBrush%2C+C+F%3BVicuna%2C+S+D%3BKadir%2C+T+N%3BDogrul%2C+E+C%3BChung%2C+F+I&rft.aulast=Miller&rft.aufirst=N&rft.date=2009-08-01&rft.volume=45&rft.issue=4&rft.spage=857&rft.isbn=&rft.btitle=&rft.title=Journal+of+the+American+Water+Resources+Association&rft.issn=1093474X&rft_id=info:doi/10.1111%2Fj.1752-1688.2009.00329.x LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-01 N1 - Last updated - 2014-05-07 N1 - SubjectsTermNotLitGenreText - Ground water; Water table; Hydrology; Water resources; Droughts; Land use; Water supply; Dry periods; Numerical simulations; Drainage; Groundwater flow; Drought; Aquifer storage; Aquifers; water table; Surface water; Simulation; Basins; water demand; Groundwater; Hydrologic Models; Water Demand; Catchment Areas; Surface Water; Diversion; USA, California, San Joaquin Basin; USA, California, Sacramento; USA, California, Tulare Basin; USA, California, Central Valley; Freshwater DO - http://dx.doi.org/10.1111/j.1752-1688.2009.00329.x ER - TY - CPAPER T1 - Local alignment of the BaBar Silicon Vertex Tracking detector T2 - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AN - 40415385; 5303930 JF - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AU - Brown, David AU - Gritsan, Andrei AU - Guo, Zijin AU - Roberts, Doug Y1 - 2009/07/26/ PY - 2009 DA - 2009 Jul 26 KW - Silicon KW - Tracking KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40415385?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.atitle=Local+alignment+of+the+BaBar+Silicon+Vertex+Tracking+detector&rft.au=Brown%2C+David%3BGritsan%2C+Andrei%3BGuo%2C+Zijin%3BRoberts%2C+Doug&rft.aulast=Brown&rft.aufirst=David&rft.date=2009-07-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.dpf2009.wayne.edu/program.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Top quark pair cross section prospects in ATLAS T2 - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AN - 40414351; 5303836 JF - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AU - Gaponenko, Andrei Y1 - 2009/07/26/ PY - 2009 DA - 2009 Jul 26 KW - Atlases KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40414351?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.atitle=Top+quark+pair+cross+section+prospects+in+ATLAS&rft.au=Gaponenko%2C+Andrei&rft.aulast=Gaponenko&rft.aufirst=Brent&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.dpf2009.wayne.edu/program.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Speeding up simulations of relativistic systems using an optimal boosted frame T2 - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AN - 40412022; 5303670 JF - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AU - Vay, Jean-Luc AU - Fawley, William AU - Furman, Miguel AU - Geddes, Cameron Y1 - 2009/07/26/ PY - 2009 DA - 2009 Jul 26 KW - Simulation KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40412022?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.atitle=Speeding+up+simulations+of+relativistic+systems+using+an+optimal+boosted+frame&rft.au=Vay%2C+Jean-Luc%3BFawley%2C+William%3BFurman%2C+Miguel%3BGeddes%2C+Cameron&rft.aulast=Vay&rft.aufirst=Jean-Luc&rft.date=2009-07-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.dpf2009.wayne.edu/program.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Non-Oscillation Neutrino Physics Experiments T2 - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AN - 40404031; 5303952 JF - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AU - Detwiler, Jason Y1 - 2009/07/26/ PY - 2009 DA - 2009 Jul 26 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40404031?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.atitle=Non-Oscillation+Neutrino+Physics+Experiments&rft.au=Detwiler%2C+Jason&rft.aulast=Detwiler&rft.aufirst=Jason&rft.date=2009-07-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.dpf2009.wayne.edu/program.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Full Jet Reconstruction In Heavy Ion Collisions: Prospects and Perils T2 - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AN - 40403958; 5303941 JF - 2009 Meeting of the Division of Particles and Fields of the American Physical Society (DPF-2009) AU - Salur, Sevil Y1 - 2009/07/26/ PY - 2009 DA - 2009 Jul 26 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40403958?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.atitle=Full+Jet+Reconstruction+In+Heavy+Ion+Collisions%3A+Prospects+and+Perils&rft.au=Salur%2C+Sevil&rft.aulast=Salur&rft.aufirst=Sevil&rft.date=2009-07-26&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Meeting+of+the+Division+of+Particles+and+Fields+of+the+American+Physical+Society+%28DPF-2009%29&rft.issn=&rft_id=info:doi/ L2 - http://www.dpf2009.wayne.edu/program.php LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Microbial Architecture of Environmental Sulfur Processes: A Novel Syntrophic Sulfur-Metabolizing Consortia AN - 754544402; 13268311 AB - Microbial oxidation of sulfur-rich mining waste materials drives acid mine drainage (AMD) and affects the global sulfur biogeochemical cycle. The generation of AMD is a complex, dynamic process that proceeds via multiple reaction pathways. The role of natural consortia of microbes in AMD generation, however, has received very little attention despite their widespread occurrence in mining environments. Through a combination of geochemical experimentation and modeling, scanning transmission X-ray microscopy, and fluorescent in situ hybridization, we show a novel interdependent metabolic arrangement of two ubiquitous and abundant AMD bacteria: chemoautotrophic sulfur-oxidizing Acidithiobacillus sp. and heterotrophic Acidiphilium sp. Highly reminiscent of anaerobic methane oxidation (AOM) consortia, these bacteria are spatially segregated within a planktonic macrostructure of extracellular polymeric substance in which they syntrophically couple sulfur oxidation and reduction reactions in a mutually beneficial arrangement that regenerates their respective sulfur substrates. As discussed here, the geochemical impacts of microbial metabolism are linked to the consortial organization and development of the pod structure, which affects cell-cell interactions and interactions with the surrounding geochemical microenvironment. If these pods are widespread in mine waters, echoing the now widespread discovery of AOM consortia, then AMD-driven CO2 atmospheric fluxes from H2SO4 carbonate weathering could be reduced by as much as 26 TgC/yr. This novel sulfur consortial discovery indicates that organized metabolically linked microbial partnerships are likely widespread and more significant in global elemental cycling than previously considered. JF - Environmental Science & Technology AU - Norlund, Kelsey L I AU - Southam, Gordon AU - Tyliszczak, Tolek AU - Hu, Yongfeng AU - Karunakaran, Chithra AU - Obst, Martin AU - Hitchcock, Adam P AU - Warren, Lesley A AD - School of Geography and Earth Sciences, McMaster University, Hamilton, Ontario, L8S 4K1 Canada, Department of Earth Sciences, University of Western Ontario, London, Ontario N6A 5B7, Canada, Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Canadian Light Source, Inc., University of Saskatchewan, Saskatoon, Saskatchewan S7N 5C6, Canada, and Brockhouse Institute for Materials Research and Departmentof Chemistry, McMaster University, Hamilton, Ontario L8S 4M1, Canada Y1 - 2009/07/21/ PY - 2009 DA - 2009 Jul 21 SP - 8781 EP - 8786 PB - American Chemical Society, 1155 16th St., NW Washington DC 20036 USA VL - 43 IS - 23 SN - 0013-936X, 0013-936X KW - Microbiology Abstracts A: Industrial & Applied Microbiology; Pollution Abstracts; Sustainability Science Abstracts; Environment Abstracts KW - mine water KW - Sulfur KW - Acidic wastes KW - Acidiphilium KW - Mining wastes KW - Weathering KW - Fluorescence in situ hybridization KW - Methane KW - Biogeochemistry KW - Drainage KW - Geochemistry KW - Wastes KW - Mines KW - weathering KW - Scanning KW - microenvironments KW - Ionizing radiation KW - Microscopy KW - Oxidation KW - Microenvironments KW - Mining KW - Cell interactions KW - Carbon dioxide KW - sulfur oxidation KW - carbonates KW - Metabolism KW - P 0000:AIR POLLUTION KW - M3 1010:Issues in Sustainable Development KW - A 01450:Environmental Pollution & Waste Treatment KW - ENA 01:Air Pollution UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/754544402?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Assamodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=J.P.+Morgan%2C+BofA+Named+to+MF+Global+Creditor+Panel&rft.au=Checkler%2C+Joseph&rft.aulast=Checkler&rft.aufirst=Joseph&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-08-01 N1 - Last updated - 2016-05-27 N1 - SubjectsTermNotLitGenreText - Sulfur; Methane; Drainage; Wastes; Mines; Scanning; Ionizing radiation; Oxidation; Microenvironments; Weathering; Cell interactions; Mining; Carbon dioxide; carbonates; sulfur oxidation; Metabolism; Fluorescence in situ hybridization; mine water; Acidic wastes; Biogeochemistry; Geochemistry; weathering; Mining wastes; microenvironments; Microscopy; Acidiphilium DO - http://dx.doi.org/10.1021/es803616k ER - TY - JOUR T1 - In-situ measurements of the mixing state and optical properties of soot with implications for radiative forcing estimates AN - 1270038328; 2013-008867 AB - Our ability to predict how global temperatures will change in the future is currently limited by the large uncertainties associated with aerosols. Soot aerosols represent a major research focus as they influence climate by absorbing incoming solar radiation resulting in a highly uncertain warming effect. The uncertainty stems from the fact that the actual amount soot warms our atmosphere strongly depends on the manner and degree in which it is mixed with other species, a property referred to as mixing state. In global models and inferences from atmospheric heating measurements, soot radiative forcing estimates currently differ by a factor of 6, ranging between 0.2-1.2 W/m (super 2) , making soot second only to CO (sub 2) in terms of global warming potential. This article reports coupled in situ measurements of the size-resolved mixing state, optical properties, and aging timescales for soot particles. Fresh fractal soot particles dominate the measured absorption during peak traffic periods (6-9 AM local time). Immediately after sunrise, soot particles begin to age by developing a coating of secondary species including sulfate, ammonium, organics, nitrate, and water. Based on these direct measurements, the core-shell arrangement results in a maximum absorption enhancement of 1.6X over fresh soot. These atmospheric observations help explain the larger values for soot forcing measured by others and will be used to obtain closure in optical property measurements to reduce one of the largest remaining uncertainties in climate change. JF - Proceedings of the National Academy of Sciences of the United States of America AU - Moffet, Ryan C AU - Prather, Kimberly A Y1 - 2009/07/21/ PY - 2009 DA - 2009 Jul 21 SP - 11872 EP - 11877 PB - National Academy of Sciences, Washington, DC VL - 106 IS - 29 SN - 0027-8424, 0027-8424 KW - United States KW - ammonium ion KW - Riverside California KW - solar forcing KW - mass spectra KW - global change KW - climate change KW - urban environment KW - temperature KW - soot KW - California KW - absorption KW - Mexico state KW - quantitative analysis KW - mixing KW - carbon KW - Federal District Mexico KW - spectra KW - organic carbon KW - nitrate ion KW - climate forcing KW - chemical composition KW - meteorology KW - climate KW - global warming KW - water KW - sulfate ion KW - Mexico City Mexico KW - in situ KW - photochemistry KW - atmosphere KW - Riverside County California KW - size KW - measurement KW - organic compounds KW - optical properties KW - Mexico KW - aerosols KW - 22:Environmental geology UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/1270038328?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Ageorefmodule&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.atitle=In-situ+measurements+of+the+mixing+state+and+optical+properties+of+soot+with+implications+for+radiative+forcing+estimates&rft.au=Moffet%2C+Ryan+C%3BPrather%2C+Kimberly+A&rft.aulast=Moffet&rft.aufirst=Ryan&rft.date=2009-07-21&rft.volume=106&rft.issue=29&rft.spage=11872&rft.isbn=&rft.btitle=&rft.title=Proceedings+of+the+National+Academy+of+Sciences+of+the+United+States+of+America&rft.issn=00278424&rft_id=info:doi/10.1073%2Fpnas.0900040106 L2 - http://www.pnas.org/ LA - English DB - GeoRef N1 - Copyright - GeoRef, Copyright 2013, American Geosciences Institute. N1 - Date revised - 2013-01-01 N1 - Number of references - 34 N1 - PubXState - DC N1 - Document feature - illus. incl. 1 table N1 - Last updated - 2013-01-17 N1 - CODEN - PNASA6 N1 - SubjectsTermNotLitGenreText - absorption; aerosols; ammonium ion; atmosphere; California; carbon; chemical composition; climate; climate change; climate forcing; Federal District Mexico; global change; global warming; in situ; mass spectra; measurement; meteorology; Mexico; Mexico City Mexico; Mexico state; mixing; nitrate ion; optical properties; organic carbon; organic compounds; photochemistry; quantitative analysis; Riverside California; Riverside County California; size; solar forcing; soot; spectra; sulfate ion; temperature; United States; urban environment; water DO - http://dx.doi.org/10.1073/pnas.0900040106 ER - TY - JOUR T1 - Simulating mixed-phase Arctic stratus clouds: sensitivity to ice initiation mechanisms AN - 21261443; 11812709 AB - The importance of Arctic mixed-phase clouds on radiation and the Arctic climate is well known. However, the development of mixed-phase cloud parameterization for use in large scale models is limited by lack of both related observations and numerical studies using multidimensional models with advanced microphysics that provide the basis for understanding the relative importance of different microphysical processes that take place in mixed-phase clouds. To improve the representation of mixed-phase cloud processes in the GISS GCM we use the GISS single-column model coupled to a bin resolved microphysics (BRM) scheme that was specially designed to simulate mixed-phase clouds and aerosol-cloud interactions. Using this model with the microphysical measurements obtained from the DOE ARM Mixed-Phase Arctic Cloud Experiment (MPACE) campaign in October 2004 at the North Slope of Alaska, we investigate the effect of ice initiation processes and Bergeron-Findeisen process (BFP) on glaciation time and longevity of single-layer stratiform mixed-phase clouds. We focus on observations taken during 9-10 October, which indicated the presence of a single-layer mixed-phase clouds. We performed several sets of 12-h simulations to examine model sensitivity to different ice initiation mechanisms and evaluate model output (hydrometeors' concentrations, contents, effective radii, precipitation fluxes, and radar reflectivity) against measurements from the MPACE Intensive Observing Period. Overall, the model qualitatively simulates ice crystal concentration and hydrometeors content, but it fails to predict quantitatively the effective radii of ice particles and their vertical profiles. In particular, the ice effective radii are overestimated by at least 50%. However, using the same definition as used for observations, the effective radii simulated and that observed were more comparable. We find that for the single-layer stratiform mixed-phase clouds simulated, process of ice phase initiation due to freezing of supercooled water in both saturated and subsaturated (w.r.t. water) environments is as important as primary ice crystal origination from water vapor. We also find that the BFP is a process mainly responsible for the rates of glaciation of simulated clouds. These glaciation rates cannot be adequately represented by a water-ice saturation adjustment scheme that only depends on temperature and liquid and solid hydrometeors' contents as is widely used in bulk microphysics schemes and are better represented by processes that also account for supersaturation changes as the hydrometeors grow. JF - Atmospheric Chemistry and Physics AU - Sednev, I AU - Menon, S AU - McFarquhar, G AD - Department of Atmospheric Sciences, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Y1 - 2009/07/20/ PY - 2009 DA - 2009 Jul 20 SP - 4747 EP - 4773 PB - European Geophysical Society, Max-Planck-Str. 13 Katlenburg-Lindau Germany VL - 9 IS - 14 SN - 1680-7316, 1680-7316 KW - Aqualine Abstracts; Water Resources Abstracts; ASFA 2: Ocean Technology Policy & Non-Living Resources; Meteorological & Geoastrophysical Abstracts KW - Supersaturation KW - Hydrometeor profiles KW - Model sensitivity KW - Radiation KW - Slopes KW - Arctic KW - Ice KW - Atmospheric circulation KW - Ice crystal concentration KW - Model Studies KW - Vertical profiles KW - Clouds KW - Radar observation of hydrometeors KW - Numerical simulations KW - Hydrometeors KW - General circulation models KW - Atmospheric chemistry KW - Glaciation KW - Cloud parameterization KW - Supercooled water KW - Scale models KW - Radar reflectivity KW - Arctic climates KW - Marine KW - Climate models KW - USA, Alaska, North Slope KW - Climates KW - Temperature KW - Simulation KW - Solids KW - Precipitation KW - PN, Arctic KW - Sea ice KW - Stratus clouds KW - Ice crystals in clouds KW - Radar KW - Arctic clouds KW - Ice particles KW - Q2 09148:Palaeo-studies KW - SW 5010:Network design KW - M2 551.510.42:Air Pollution (551.510.42) KW - AQ 00006:Sewage UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/21261443?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Aaqualine&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Atmospheric+Chemistry+and+Physics&rft.atitle=Simulating+mixed-phase+Arctic+stratus+clouds%3A+sensitivity+to+ice+initiation+mechanisms&rft.au=Sednev%2C+I%3BMenon%2C+S%3BMcFarquhar%2C+G&rft.aulast=Sednev&rft.aufirst=I&rft.date=2009-07-20&rft.volume=9&rft.issue=14&rft.spage=4747&rft.isbn=&rft.btitle=&rft.title=Atmospheric+Chemistry+and+Physics&rft.issn=16807316&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2010-02-01 N1 - Last updated - 2014-05-02 N1 - SubjectsTermNotLitGenreText - Supersaturation; Sea ice; Scale models; Hydrometeors; Radar; Glaciation; Simulation; Atmospheric circulation; Vertical profiles; Hydrometeor profiles; Climate models; Precipitation; Ice crystal concentration; Supercooled water; Clouds; Radar observation of hydrometeors; Model sensitivity; Radiation; Radar reflectivity; Stratus clouds; Numerical simulations; Ice crystals in clouds; General circulation models; Atmospheric chemistry; Arctic clouds; Cloud parameterization; Arctic climates; Ice particles; Ice; Climates; Temperature; Solids; Slopes; Arctic; Model Studies; PN, Arctic; USA, Alaska, North Slope; Marine ER - TY - CPAPER T1 - Large-Scale Identification of Tissue-Specific Enhancers in Vivo T2 - 2009 Gordon Research Conference on Human Genetics and Genomics AN - 40197015; 5184444 JF - 2009 Gordon Research Conference on Human Genetics and Genomics AU - Pennacchio, Len Y1 - 2009/07/19/ PY - 2009 DA - 2009 Jul 19 KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40197015?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Gordon+Research+Conference+on+Human+Genetics+and+Genomics&rft.atitle=Large-Scale+Identification+of+Tissue-Specific+Enhancers+in+Vivo&rft.au=Pennacchio%2C+Len&rft.aulast=Pennacchio&rft.aufirst=Len&rft.date=2009-07-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Gordon+Research+Conference+on+Human+Genetics+and+Genomics&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2009&program=humangen LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mammalian Gut Microbiome T2 - 2009 Gordon Research Conference on Microbial Population Biology AN - 40194967; 5184624 JF - 2009 Gordon Research Conference on Microbial Population Biology AU - Francino, Pilar Y1 - 2009/07/19/ PY - 2009 DA - 2009 Jul 19 KW - Digestive tract KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40194967?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Gordon+Research+Conference+on+Microbial+Population+Biology&rft.atitle=Mammalian+Gut+Microbiome&rft.au=Francino%2C+Pilar&rft.aulast=Francino&rft.aufirst=Pilar&rft.date=2009-07-19&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Gordon+Research+Conference+on+Microbial+Population+Biology&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2009&program=micrpop LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - JOUR T1 - Enhanced elemental mercury removal from coal-fired flue gas by sulfur-chlorine compounds. AN - 67612273; 19708374 AB - Oxidation of Hg(0) with any oxidant or converting itto a particle-bound form can facilitate its removal. Two sulfur-chlorine compounds, sulfur dichloride (SCl2) and sulfur monochloride (S2Cl2), were investigated as oxidants for Hg(0) by gas-phase reaction and by surface-involved reactions in the presence of flyash or activated carbon. The gas-phase reaction between Hg(0) and SCl2 is shown to be more rapid than the gas-phase reaction with chlorine, and the second order rate constant was 9.1 (+/- 0.5) x 10(-18) mL-molecules(-1) x s(-1) at 373 K. The presence of flyash or powdered activated carbon in flue gas can substantially accelerate the reaction. The predicted Hg(0) removal is about 90% with 5 ppm SCl2 or S2Cl2 and 40 g/m3 of flyash in flue gas. The combination of activated carbon and sulfur-chlorine compounds is an effective alternative. We estimate that coinjection of 3-5 ppm of SCl2 (or S2Cl2) with 2-3 Lb/MMacf of untreated Darco-KB is comparable in efficiency to the injection of 2-3 Lb/MMacf Darco-Hg-LH. Extrapolation of kinetic results also indicates that 90% of Hg(0) can be removed if 3 Lb/MMacf of Darco-KB pretreated with 3% of SCl2 or S2Cl2 is used. Mercuric sulfide was identified as one of the principal products of the Hg(0)/SCl2 or Hg(0)/S2Cl2 reactions. Additionally, about 8% of SCl2 or S2Cl2 in aqueous solutions is converted to sulfide ions, which would precipitate mercuric ion from FGD solution. JF - Environmental science & technology AU - Yan, Nai-Qiang AU - Qu, Zan AU - Chi, Yao AU - Qiao, Shao-Hua AU - Dod, Ray L AU - Chang, Shih-Ger AU - Miller, Charles AD - Environmental Energy Technology Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA. Y1 - 2009/07/15/ PY - 2009 DA - 2009 Jul 15 SP - 5410 EP - 5415 VL - 43 IS - 14 SN - 0013-936X, 0013-936X KW - Air Pollutants KW - 0 KW - Chlorine Compounds KW - Coal KW - Coal Ash KW - Particulate Matter KW - Sulfur KW - 70FD1KFU70 KW - Carbon KW - 7440-44-0 KW - Mercury KW - FXS1BY2PGL KW - Index Medicus KW - Oxidation-Reduction KW - Power Plants KW - Particulate Matter -- chemistry KW - Carbon -- chemistry KW - Environmental Monitoring -- methods KW - Chlorine Compounds -- chemistry KW - Refuse Disposal -- methods KW - Sulfur -- chemistry KW - Mercury -- chemistry KW - Air Pollutants -- chemistry UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67612273?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Enhanced+elemental+mercury+removal+from+coal-fired+flue+gas+by+sulfur-chlorine+compounds.&rft.au=Yan%2C+Nai-Qiang%3BQu%2C+Zan%3BChi%2C+Yao%3BQiao%2C+Shao-Hua%3BDod%2C+Ray+L%3BChang%2C+Shih-Ger%3BMiller%2C+Charles&rft.aulast=Yan&rft.aufirst=Nai-Qiang&rft.date=2009-07-15&rft.volume=43&rft.issue=14&rft.spage=5410&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-09-22 N1 - Date created - 2009-08-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Feedbacks between hydrological heterogeneity and bioremediation induced biogeochemical transformations. AN - 67612065; 19708341 AB - For guiding optimal design and interpretation of in situ treatments that strongly perturb subsurface systems, knowledge about the spatial and temporal patterns of mass transport and reaction intensities are important. Here, a procedure was developed and applied to time-lapse concentrations of a conservative tracer (bromide), an injected amendment (acetate) and reactive species (iron(II), uranium(VI) and sulfate) associated with two field scale biostimulation experiments, which were conducted successively at the same field location over two years. The procedure is based on a temporal moment analysis approach that relies on a streamtube approximation. The study shows that biostimulated reactions can be considerably influenced by subsurface hydrological and geochemical heterogeneities: the delivery of bromide and acetate and the intensity of the sulfate reduction is interpreted to be predominantly driven by the hydrological heterogeneity, while the intensity of the iron reduction is interpreted to be primarily controlled by the geochemical heterogeneity. The intensity of the uranium(VI) reduction appears to be impacted by both the hydrological and geochemical heterogeneity. Finally, the study documents the existence of feedbacks between hydrological heterogeneity and remediation-induced biogeochemical transformations at the field scale, particularly the development of precipitates that may cause clogging end flow rerouting. JF - Environmental science & technology AU - Englert, A AU - Hubbard, S S AU - Williams, K H AU - Li, L AU - Steefel, C I AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, USA. Andreas.Englert@rub.de Y1 - 2009/07/15/ PY - 2009 DA - 2009 Jul 15 SP - 5197 EP - 5204 VL - 43 IS - 14 SN - 0013-936X, 0013-936X KW - Metals KW - 0 KW - Index Medicus KW - Water Movements KW - Metals -- chemistry KW - Geologic Sediments -- chemistry KW - Water Supply KW - Biodegradation, Environmental UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67612065?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Feedbacks+between+hydrological+heterogeneity+and+bioremediation+induced+biogeochemical+transformations.&rft.au=Englert%2C+A%3BHubbard%2C+S+S%3BWilliams%2C+K+H%3BLi%2C+L%3BSteefel%2C+C+I&rft.aulast=Englert&rft.aufirst=A&rft.date=2009-07-15&rft.volume=43&rft.issue=14&rft.spage=5197&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-09-22 N1 - Date created - 2009-08-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Mineral transformation and biomass accumulation associated with uranium bioremediation at Rifle, Colorado. AN - 67611163; 19708377 AB - Injection of organic carbon into the subsurface as an electron donor for bioremediation of redox-sensitive contaminants like uranium often leads to mineral transformation and biomass accumulation, both of which can alter the flow field and potentially bioremediation efficacy. This work combines reactive transport modeling with a column experiment and field measurements to understand the biogeochemical processes and to quantify the biomass and mineral transformation/accumulation during a bioremediation experiment at a uranium contaminated site near Rifle, Colorado. We use the reactive transport model CrunchFlow to explicitly simulate microbial community dynamics of iron and sulfate reducers, and their impacts on reaction rates. The column experiment shows clear evidence of mineral precipitation, primarily in the form of calcite and iron monosulfide. At the field scale, reactive transport simulations suggest that the biogeochemical reactions occur mostly close to the injection wells where acetate concentrations are highest, with mineral precipitate and biomass accumulation reaching as high as 1.5% of the pore space. This work shows that reactive transport modeling coupled with field data can bean effective tool for quantitative estimation of mineral transformation and biomass accumulation, thus improving the design of bioremediation strategies. JF - Environmental science & technology AU - Li, Li AU - Steefel, Carl I AU - Williams, Kenneth H AU - Wilkins, Michael J AU - Hubbard, Susan S AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 90-1116, Berkeley, California 94720, USA. lili@lbl.gov Y1 - 2009/07/15/ PY - 2009 DA - 2009 Jul 15 SP - 5429 EP - 5435 VL - 43 IS - 14 SN - 0013-936X, 0013-936X KW - Minerals KW - 0 KW - Soil Pollutants, Radioactive KW - Water Pollutants, Radioactive KW - Uranium KW - 4OC371KSTK KW - Index Medicus KW - Oxidation-Reduction KW - Bacteria -- metabolism KW - Thermodynamics KW - Porosity KW - Water Supply KW - Models, Chemical KW - Colorado KW - Water Pollutants, Radioactive -- chemistry KW - Minerals -- chemistry KW - Soil Pollutants, Radioactive -- chemistry KW - Uranium -- chemistry KW - Biodegradation, Environmental KW - Biomass UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67611163?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Mineral+transformation+and+biomass+accumulation+associated+with+uranium+bioremediation+at+Rifle%2C+Colorado.&rft.au=Li%2C+Li%3BSteefel%2C+Carl+I%3BWilliams%2C+Kenneth+H%3BWilkins%2C+Michael+J%3BHubbard%2C+Susan+S&rft.aulast=Li&rft.aufirst=Li&rft.date=2009-07-15&rft.volume=43&rft.issue=14&rft.spage=5429&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-09-22 N1 - Date created - 2009-08-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - JOUR T1 - Potential remediation approach for uranium-contaminated groundwaters through potassium uranyl vanadate precipitation. AN - 67610080; 19708383 AB - Methods for remediating groundwaters contaminated with uranium (U) through precipitation under oxidizing conditions are needed because bioreduction-based approaches require indefinite supply of electron donor. Although strategies based on precipitation of some phosphate minerals within the (meta)autunite group have been considered for this purpose, thermodynamic calculations for K- and Ca-uranyl phopsphates, meta-ankoleite and autunite, predict that U concentrations will exceed the Maximum Contaminant Level (MCL = 0.13 microM for U) at any pH and pCO2, unless phosphate is maintained at much higher concentrations than the sub-microM levels typically found in groundwaters. We hypothesized that potassium uranyl vanadate will control U(VI) concentrations below regulatory levels in slightly acidic to neutral solutions based on thermodynamic data available for carnotite, K2(UO2)2V2O8. The calculations indicate that maintaining U concentrations below the MCL through precipitation of carnotite will be sustainable in some oxidizing waters having pH in the range of 5.5 to 7, even when dissolution of this solid phase becomes the sole supply of sub-microM levels of V. Batch experiments were conducted in solutions at pH 6.0 and 7.8, chosen because of their very different predicted extents of U(VI) removal. Conditions were identified where U concentrations dropped below the MCL within 1-5 days of contact with oxidizing solutions containing 0.2-10 mM K, and 0.1-20 microM V(V). This method may also have application in extracting (mining) U and V from groundwaters where they both occur at elevated concentrations. JF - Environmental science & technology AU - Tokunaga, Tetsu K AU - Kim, Yongman AU - Wan, Jiamin AD - Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA. Y1 - 2009/07/15/ PY - 2009 DA - 2009 Jul 15 SP - 5467 EP - 5471 VL - 43 IS - 14 SN - 0013-936X, 0013-936X KW - Soil Pollutants, Radioactive KW - 0 KW - Water Pollutants, Radioactive KW - Vanadates KW - 3WHH0066W5 KW - Uranium KW - 4OC371KSTK KW - Potassium KW - RWP5GA015D KW - Index Medicus KW - Water Supply -- analysis KW - Thermodynamics KW - Chemical Precipitation KW - Potassium -- chemistry KW - Water Pollutants, Radioactive -- chemistry KW - Vanadates -- chemistry KW - Soil Pollutants, Radioactive -- chemistry KW - Uranium -- chemistry KW - Water Purification -- methods UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/67610080?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Atoxline&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.jtitle=Environmental+science+%26+technology&rft.atitle=Potential+remediation+approach+for+uranium-contaminated+groundwaters+through+potassium+uranyl+vanadate+precipitation.&rft.au=Tokunaga%2C+Tetsu+K%3BKim%2C+Yongman%3BWan%2C+Jiamin&rft.aulast=Tokunaga&rft.aufirst=Tetsu&rft.date=2009-07-15&rft.volume=43&rft.issue=14&rft.spage=5467&rft.isbn=&rft.btitle=&rft.title=Environmental+science+%26+technology&rft.issn=0013936X&rft_id=info:doi/ LA - English DB - ProQuest Environmental Science Collection N1 - Date completed - 2009-09-22 N1 - Date created - 2009-08-27 N1 - Date revised - 2017-02-17 N1 - Last updated - 2017-02-22 ER - TY - CPAPER T1 - Theory of Transverse-Momentum-Dependent Spin Structure T2 - 2009 Gordon Research Conference on Nuclear Physics AN - 40310541; 5241665 JF - 2009 Gordon Research Conference on Nuclear Physics AU - Yuan, Feng Y1 - 2009/07/12/ PY - 2009 DA - 2009 Jul 12 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40310541?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Gordon+Research+Conference+on+Nuclear+Physics&rft.atitle=Theory+of+Transverse-Momentum-Dependent+Spin+Structure&rft.au=Yuan%2C+Feng&rft.aulast=Yuan&rft.aufirst=Feng&rft.date=2009-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Gordon+Research+Conference+on+Nuclear+Physics&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2009&program=nucphys LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Underground Facilities for Nuclear Astrophysics T2 - 2009 Gordon Research Conference on Nuclear Physics AN - 40310494; 5241661 JF - 2009 Gordon Research Conference on Nuclear Physics AU - Leitner, Daniela Y1 - 2009/07/12/ PY - 2009 DA - 2009 Jul 12 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40310494?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Gordon+Research+Conference+on+Nuclear+Physics&rft.atitle=Underground+Facilities+for+Nuclear+Astrophysics&rft.au=Leitner%2C+Daniela&rft.aulast=Leitner&rft.aufirst=Daniela&rft.date=2009-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2009&program=nucphys LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - The QCD Critical Point T2 - 2009 Gordon Research Conference on Nuclear Physics AN - 40303959; 5241658 JF - 2009 Gordon Research Conference on Nuclear Physics AU - Koch, Volker Y1 - 2009/07/12/ PY - 2009 DA - 2009 Jul 12 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40303959?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Gordon+Research+Conference+on+Nuclear+Physics&rft.atitle=The+QCD+Critical+Point&rft.au=Koch%2C+Volker&rft.aulast=Koch&rft.aufirst=Volker&rft.date=2009-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Gordon+Research+Conference+on+Nuclear+Physics&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2009&program=nucphys LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - What to Expect from Single Cell Genome Sequence Data T2 - 2009 Gordon Research Conference on Applied & Environmental Microbiology AN - 40300467; 5240748 JF - 2009 Gordon Research Conference on Applied & Environmental Microbiology AU - Woyke, Tanja Y1 - 2009/07/12/ PY - 2009 DA - 2009 Jul 12 KW - Genomes KW - Data processing KW - Nucleotide sequence KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40300467?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Gordon+Research+Conference+on+Applied+%26+Environmental+Microbiology&rft.atitle=What+to+Expect+from+Single+Cell+Genome+Sequence+Data&rft.au=Woyke%2C+Tanja&rft.aulast=Woyke&rft.aufirst=Tanja&rft.date=2009-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Gordon+Research+Conference+on+Applied+%26+Environmental+Microbiology&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2009&program=applied LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Mechanisms of Fatigue and Fracture in Mo-Si-B Alloys at Elevated Temperatures in Air and Inert Atmospheres T2 - 12th International Conference on Fracture (ICF 12) AN - 40175144; 5176270 JF - 12th International Conference on Fracture (ICF 12) AU - Lemberg, J AU - Ritchie, R Y1 - 2009/07/12/ PY - 2009 DA - 2009 Jul 12 KW - Temperature KW - Alloys KW - Fatigue KW - Fractures KW - Air temperature KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40175144?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=12th+International+Conference+on+Fracture+%28ICF+12%29&rft.atitle=Mechanisms+of+Fatigue+and+Fracture+in+Mo-Si-B+Alloys+at+Elevated+Temperatures+in+Air+and+Inert+Atmospheres&rft.au=Lemberg%2C+J%3BRitchie%2C+R&rft.aulast=Lemberg&rft.aufirst=J&rft.date=2009-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=12th+International+Conference+on+Fracture+%28ICF+12%29&rft.issn=&rft_id=info:doi/ L2 - http://www.icf12.com/doc-pdf/Program/ICF-program_detail.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Effect of Sidewall Morphology on the Fracture and Fatigue Properties of Polysilicon Structural Films T2 - 12th International Conference on Fracture (ICF 12) AN - 40171837; 5176332 JF - 12th International Conference on Fracture (ICF 12) AU - Alsem, D AU - Boyce, B AU - Stach, E AU - Ritchie, R Y1 - 2009/07/12/ PY - 2009 DA - 2009 Jul 12 KW - Fatigue KW - Morphology KW - Films KW - Fractures KW - U 2000:Biological Sciences UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40171837?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=12th+International+Conference+on+Fracture+%28ICF+12%29&rft.atitle=Effect+of+Sidewall+Morphology+on+the+Fracture+and+Fatigue+Properties+of+Polysilicon+Structural+Films&rft.au=Alsem%2C+D%3BBoyce%2C+B%3BStach%2C+E%3BRitchie%2C+R&rft.aulast=Alsem&rft.aufirst=D&rft.date=2009-07-12&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=12th+International+Conference+on+Fracture+%28ICF+12%29&rft.issn=&rft_id=info:doi/ L2 - http://www.icf12.com/doc-pdf/Program/ICF-program_detail.pdf LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Phi Meson Production and Cronin Effect in D+Au Collisions at \Sqrt{s_{Nn}} = 200 Gev T2 - 2009 Gordon-Kenan Research Seminar on Nuclear Physics AN - 40304002; 5241685 JF - 2009 Gordon-Kenan Research Seminar on Nuclear Physics AU - Jena, Chitrasen Y1 - 2009/07/11/ PY - 2009 DA - 2009 Jul 11 KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40304002?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=unknown&rft.jtitle=Wall+Street+Journal+%28Online%29&rft.atitle=Joe+Frazier%2C+Champion+Boxer+and+Ali+Foil%2C+Dies&rft.au=Miller%2C+Stephen&rft.aulast=Miller&rft.aufirst=Stephen&rft.date=2011-11-08&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=Wall+Street+Journal+%28Online%29&rft.issn=&rft_id=info:doi/ L2 - http://www.grc.org/programs.aspx?year=2009&program=grad_nucl LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Some Challenges on High Resolution Climate Simulations T2 - 2009 Annual Meeting of the Society for Industrial and Applied Mathematics AN - 40245682; 5214693 JF - 2009 Annual Meeting of the Society for Industrial and Applied Mathematics AU - Drummond, Leroy Y1 - 2009/07/06/ PY - 2009 DA - 2009 Jul 06 KW - Simulation KW - Climate KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40245682?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Annual+Meeting+of+the+Society+for+Industrial+and+Applied+Mathematics&rft.atitle=Some+Challenges+on+High+Resolution+Climate+Simulations&rft.au=Drummond%2C+Leroy&rft.aulast=Drummond&rft.aufirst=Leroy&rft.date=2009-07-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Annual+Meeting+of+the+Society+for+Industrial+and+Applied+Mathematics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=AN09 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER - TY - CPAPER T1 - Linear Scaling Electronic Structure Calculations for Tens of Thousands of Atoms Using Hundreds of Thousands of Processors T2 - 2009 Annual Meeting of the Society for Industrial and Applied Mathematics AN - 40243684; 5214692 JF - 2009 Annual Meeting of the Society for Industrial and Applied Mathematics AU - Wang, Lin-Wang Y1 - 2009/07/06/ PY - 2009 DA - 2009 Jul 06 KW - Scaling KW - U 7000:Multidisciplinary UR - http://libproxy.lib.unc.edu/login?url=http://search.proquest.com/docview/40243684?accountid=14244 L2 - http://vb3lk7eb4t.search.serialssolutions.com/?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/ProQ%3Acpi&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=conference&rft.jtitle=2009+Annual+Meeting+of+the+Society+for+Industrial+and+Applied+Mathematics&rft.atitle=Linear+Scaling+Electronic+Structure+Calculations+for+Tens+of+Thousands+of+Atoms+Using+Hundreds+of+Thousands+of+Processors&rft.au=Wang%2C+Lin-Wang&rft.aulast=Wang&rft.aufirst=Lin-Wang&rft.date=2009-07-06&rft.volume=&rft.issue=&rft.spage=&rft.isbn=&rft.btitle=&rft.title=2009+Annual+Meeting+of+the+Society+for+Industrial+and+Applied+Mathematics&rft.issn=&rft_id=info:doi/ L2 - http://meetings.siam.org/program.cfm?CONFCODE=AN09 LA - English DB - ProQuest Environmental Science Collection N1 - Date revised - 2009-09-28 N1 - Last updated - 2010-05-03 ER -