FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Yoon, KJ
Cramer, CN
Stevenson, JW
Marina, OA
AF Yoon, Kyung Joong
Cramer, Carolyn N.
Stevenson, Jeffry W.
Marina, Olga A.
TI Improvement of Sintering, Thermal Behavior, and Electrical Properties of
Calcium- and Transition Metal-Doped Yttrium Chromite
SO ELECTROCHEMICAL AND SOLID STATE LETTERS
LA English
DT Article
ID OXIDE FUEL-CELLS; LANTHANUM CHROMITE; THERMOELECTRIC-POWER; CATION
SUBSTITUTION; DEFECT STRUCTURE; HIGH-TEMPERATURE; STABILITY;
CONDUCTIVITY; PEROVSKITES; EXPANSION
AB Calcium-doped yttrium chromite was additionally doped with various transition metals on B-site to improve the sintering, thermal behavior, and electrical properties for use as an interconnect material in solid oxide fuel cells. With 10% B-site addition of Co, Cu, Ni, Fe, and Mn, the orthorhombic perovskite structure remained stable over a wide range of oxygen partial pressures. The substitution of Cu for chromium remarkably improved the sinterability and the substitution of Co and Ni significantly improved the electrical conductivity. Fe substitution slightly improved sinterability and electrical conductivity, and Mn doping had a negative effect on those properties. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3456525] All rights reserved.
C1 [Yoon, Kyung Joong; Cramer, Carolyn N.; Stevenson, Jeffry W.; Marina, Olga A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Yoon, KJ (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM kyungjoong.yoon@pnl.gov
FU U.S. Department of Energy, Office of Fossil Energy, National Energy
Technology Laboratory [AC0676RLO 1830]
FX The authors appreciate the SEM analysis performed by A.L. Schemer-Kohrn.
Financial support from the U.S. Department of Energy, Office of Fossil
Energy, National Energy Technology Laboratory as part of the Solid State
Energy Conversion Alliance (SECA) Coal-Based Systems Core Research
Program is gratefully acknowledged. Pacific Northwest National
Laboratory is operated by Battelle for the U.S. Department of Energy
under the contract AC0676RLO 1830.
NR 33
TC 7
Z9 7
U1 0
U2 8
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 1099-0062
J9 ELECTROCHEM SOLID ST
JI Electrochem. Solid State Lett.
PY 2010
VL 13
IS 9
BP D101
EP D105
DI 10.1149/1.3456525
PG 5
WC Electrochemistry; Materials Science, Multidisciplinary
SC Electrochemistry; Materials Science
GA 624HA
UT WOS:000279806700006
ER
PT J
AU Jia, D
Lewis, LA
Wang, XJ
AF Jia, D.
Lewis, L. A.
Wang, Xiao-Jun
TI Cr3+-Doped Lanthanum Gallogermanate Phosphors with Long Persistent IR
Emission
SO ELECTROCHEMICAL AND SOLID STATE LETTERS
LA English
DT Article
ID TUNABLE STIMULATED-EMISSION; RED PHOSPHOR; CRYSTALS; SPECTROSCOPY; IONS
AB Lanthanum gallogermanate co-doped with chromium (La3Ga5GeO14:Cr3+, M, where M = Li, Pb2+, Zn2+, Eu3+, Tm3+, and Dy3+) samples have been prepared using a solid-state chemical reaction method. The phosphor with Dy3+ is observed to have a persistent IR emission for more than 8 h, which is recorded using a spectrometer. The wavelength of the major IR emission is in the range from 700 to 1100 nm. The intensity of the phosphorescence and persistent time can be modified by co-doping proper trapping centers. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3294520] All rights reserved.
C1 [Jia, D.; Lewis, L. A.] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Wang, Xiao-Jun] Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA.
RP Jia, D (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM xwang@georgiasouthern.edu
RI Wang, Xiaojun/D-2787-2013
OI Wang, Xiaojun/0000-0003-1506-0762
NR 17
TC 32
Z9 32
U1 6
U2 54
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 1099-0062
J9 ELECTROCHEM SOLID ST
JI Electrochem. Solid State Lett.
PY 2010
VL 13
IS 4
BP J32
EP J34
DI 10.1149/1.3294520
PG 3
WC Electrochemistry; Materials Science, Multidisciplinary
SC Electrochemistry; Materials Science
GA 553TX
UT WOS:000274390800031
ER
PT J
AU Jia, DD
AF Jia, Dongdong
TI Synthesis YPO4:Eu3+ Nanophosphor from Fungi
SO ELECTROCHEMICAL AND SOLID STATE LETTERS
LA English
DT Article
DE europium; europium compounds; microorganisms; nanostructured materials;
phosphors; scanning electron microscopy; X-ray diffraction; yttrium
compounds
ID EU3+; NANOCRYSTALS; LUMINESCENCE; PHOSPHORS; LUPO4; LA; GD
AB Live fungi (zygo and asco) were cultivated and grown in an agar solution with a 2000 ppm concentration of Y3+ from YNO3 and a 20 ppm concentration of Eu3+ from EuNO3. When the fungi were grown to a good amount, they were collected, dried, and burnt at 1000 degrees C for 2 h in air. X-ray diffraction, scanning electron microscopy, and optical spectroscopy experiments revealed that the product was nanophosphor YPO4:Eu3+ with a size of 100-200 nm.
C1 Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Jia, DD (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM manager@luminow.com
NR 20
TC 0
Z9 0
U1 2
U2 13
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 1099-0062
EI 1944-8775
J9 ELECTROCHEM SOLID ST
JI Electrochem. Solid State Lett.
PY 2010
VL 13
IS 5
BP J57
EP J61
DI 10.1149/1.3322297
PG 5
WC Electrochemistry; Materials Science, Multidisciplinary
SC Electrochemistry; Materials Science
GA 570GL
UT WOS:000275660200030
ER
PT J
AU Oh, SW
Myung, ST
Oh, SM
Yoon, CS
Amine, K
Sun, YK
AF Oh, Sung Woo
Myung, Seung-Taek
Oh, Seung-Min
Yoon, Chong Seung
Amine, Khalil
Sun, Yang-Kook
TI Polyvinylpyrrolidone-assisted synthesis of microscale C-LiFePO4 with
high tap density as positive electrode materials for lithium batteries
SO ELECTROCHIMICA ACTA
LA English
DT Article
DE Microscale-LiFePO4; Tap density; Volumetric capacity; Cathode; Lithium
batteries
ID CATHODE MATERIAL; ELECTROCHEMICAL PROPERTIES; SPHERICAL LICOO2; ION
BATTERIES; LIFEPO4; PRECIPITATION; PHASE; IRON; FE2P
AB Carbon-coated LiFePO4 (C-LiFePO4) with micron particle size (6 mu m) and high tap density (1.6 g cm(-3)) was prepared from spherical FePO4 center dot 2H(2)O powder via the co-precipitation method. The C-LiFePO4 powder was calcined at temperatures between 650 and 800 degrees C. The 6 mu m C-LiFePO4 prepared at 800 degrees C exhibited an excellent rate capability, delivering 150 mAh g(-1) on discharge at the 0.1 C-rate and 108 mAh g(-1) at the 5 C-rate. The volumetric capacity of the 6 pm C-LiFePO4 corresponded to 225 mAh cm(-3), since the large secondary particles (6 mu m) C-LiFePO4 Sufficiently allowed tight packing of the particles. The 6 mu m C-LiFePO4 powder with high tap density makes an attractive positive electrode candidate for lithium-ion batteries designed for high energy density. (c) 2009 Elsevier Ltd. All rights reserved.
C1 [Oh, Sung Woo; Oh, Seung-Min; Sun, Yang-Kook] Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea.
[Myung, Seung-Taek] Iwate Univ, Dept Chem Engn, Morioka, Iwate 0208551, Japan.
[Yoon, Chong Seung] Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea.
[Amine, Khalil] Argonne Natl Lab, Chem Sci & Engn Div, Electrochem Technol Program, Argonne, IL 60439 USA.
RP Sun, YK (reprint author), Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea.
EM smyung@iwate-u.ac.jp; yksun@hanyang.ac.kr
RI Sun, Yang-Kook/B-9157-2013; Amine, Khalil/K-9344-2013
OI Sun, Yang-Kook/0000-0002-0117-0170;
FU Korean government (MEST) [2009-0092780, R11-2008-088-03002-0]
FX This research was supported by the Korea Science and Engineering
Foundation (KOSEF) grant funded by the Korean government (MEST) (no.
2009-0092780) and (no. R11-2008-088-03002-0).
NR 18
TC 39
Z9 45
U1 5
U2 41
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0013-4686
J9 ELECTROCHIM ACTA
JI Electrochim. Acta
PD JAN 1
PY 2010
VL 55
IS 3
BP 1193
EP 1199
DI 10.1016/j.electacta.2009.10.007
PG 7
WC Electrochemistry
SC Electrochemistry
GA 549CS
UT WOS:000274020200081
ER
PT S
AU Miara, LJ
Yoon, KJ
Topping, SG
Saraf, LV
Pal, UB
Gopalan, S
AF Miara, L. J.
Yoon, K. J.
Topping, S. G.
Saraf, L. V.
Pal, U. B.
Gopalan, S.
BE Birss, V
Mustain, W
Wilkinson, D
Kulesza, P
Ota, K
TI Polarization Resistance of La0.85Ca0.15MnO3 Cathodes for Solid Oxide
Fuel Cells (SOFCs) Measured Using Patterned Electrodes
SO ELECTRODE PROCESSES RELEVANT TO FUEL CELL TECHNOLOGY
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Electrode Processes Relevant to Fuel Cell Technology held
during the 217th Meeting of the Electrochemical-Society (ECS)
CY APR 25-30, 2010
CL Vancouver, CANADA
SP Electrochem Soc (ECS), Electrochem Soc (ECS), Phys & Analyt Electrochemistry Div, Electrochem Soc (ECS), Energy Technol Div
ID CHARGE-TRANSFER RESISTIVITY
AB Patterned cathodes of calcium-doped lanthanum manganite (LCM) were fabricated on polycrystalline yttria-stabilized zirconia (YSZ) substrates by RF magnetron sputtering and photolithographic techniques. Samples were generated with a constant electrode/electrolyte contact area but different three phase boundary (TPB) lengths (1(TPB)'s). Electrochemical impedance spectroscopy (EIS) was performed in the oxygen partial pressure (pO2) and temperature range of 10(-3) atm to 1.00 atm and 600-800 degrees C respectively. The area specific polarization resistance, R-p, was found to scale linearly with the inverse of 1(TPB), suggesting that the TPB is the active region for oxygen reduction. The resistivity decreased with increased temperature and pO2 and showed an activation energy of 1.17 +/- 0.03 eV.
C1 [Miara, L. J.; Topping, S. G.; Pal, U. B.; Gopalan, S.] Boston Univ, Div Mat Sci, Boston, MA 02135 USA.
[Yoon, K. J.; Saraf, L. V.] Pacific Northwest Natl Lab, Richland, WA 99352 USA.
[Pal, U. B.; Gopalan, S.] Boston Univ, Dept Mech Engn, Boston, MA 02135 USA.
RP Miara, LJ (reprint author), Boston Univ, Div Mat Sci, Boston, MA 02135 USA.
FU U. S. Department of Energy [DE-NT0004104]
FX The authors would like to thank the Environmental Molecular Sciences
Laboratory (EMSL) at the Pacific Northwest National Laboratory (PNNL)
for financial and resource help as part of the Summer Research
Assistantship program. Also the BU research on "solid oxide fuel cell
cathodes: unraveling the relationship between structure, surface
chemistry and oxygen reduction" is supported by the U. S. Department of
Energy Grant No. DE-NT0004104.
NR 13
TC 0
Z9 0
U1 0
U2 3
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-199-1; 978-1-56677-849-7
J9 ECS TRANSACTIONS
PY 2010
VL 28
IS 23
BP 137
EP +
DI 10.1149/1.3502345
PG 2
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BEL14
UT WOS:000317178800014
ER
PT S
AU Zhai, Y
Bethune, K
Dorn, S
Bender, G
Rocheleau, R
AF Zhai, Y.
Bethune, K.
Dorn, S.
Bender, G.
Rocheleau, R.
BE Birss, V
Mustain, W
Wilkinson, D
Kulesza, P
Ota, K
TI Electrochemical Impedance Spectroscopy Analysis on SO2 Contamination in
PEMFCs
SO ELECTRODE PROCESSES RELEVANT TO FUEL CELL TECHNOLOGY
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Electrode Processes Relevant to Fuel Cell Technology held
during the 217th Meeting of the Electrochemical-Society (ECS)
CY APR 25-30, 2010
CL Vancouver, CANADA
SP Electrochem Soc (ECS), Electrochem Soc (ECS), Phys & Analyt Electrochemistry Div, Electrochem Soc (ECS), Energy Technol Div
ID OXYGEN REDUCTION REACTION; PROTON-EXCHANGE MEMBRANE; SULFUR-DIOXIDE;
FUEL-CELLS; PERFORMANCE; TEMPERATURE; DEGRADATION; DURABILITY;
ADSORPTION; CHEMISTRY
AB Electrochemical impedance spectroscopy (EIS) was applied to analyze the effects of 2 ppm SO2 on the electrochemical reactions in PEMFCs cathode during the two-stage performance degradation. An equivalent electrical circuit model (ECM) was used to fit the resistances of the fuel cell reactions. The extracted parameters of the oxygen reduction reaction (ORR) suggested that during the first poisoning stage, the SO2 adsorption increased the charge transfer resistance of the ORR and caused the initial degradation in cell performance. During the second poisoning stage, SO2 adsorption might assist in shifting the ORR from the "direct four electron pathway" to the "series two electron pathway", which may have resulted in the subsequent degradation in cell performance.
C1 [Zhai, Y.; Bethune, K.; Dorn, S.; Rocheleau, R.] Univ Hawaii, Hawaii Nat Energy Inst, Honolulu, HI 96822 USA.
[Bender, G.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Zhai, Y (reprint author), Univ Hawaii, Hawaii Nat Energy Inst, Honolulu, HI 96822 USA.
FU Office of Naval Research (ONR) [N00014-06-1-1055]
FX We gratefully acknowledge funding from the Office of Naval Research
(ONR) under Award Number N00014-06-1-1055.
NR 29
TC 3
Z9 3
U1 0
U2 5
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-199-1; 978-1-56677-849-7
J9 ECS TRANSACTIONS
PY 2010
VL 28
IS 23
BP 313
EP +
DI 10.1149/1.3502363
PG 3
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BEL14
UT WOS:000317178800032
ER
PT S
AU Aguiar, JA
Gronbech-Jensen, N
Perlov, A
Milman, V
Gao, SP
Pickard, CJ
Browning, ND
AF Aguiar, J. A.
Groenbech-Jensen, N.
Perlov, A.
Milman, V.
Gao, S. P.
Pickard, C. J.
Browning, N. D.
BE Baker, RT
TI Electronic structure of oxide fuels from experiment and first principles
calculations
SO ELECTRON MICROSCOPY AND ANALYSIS GROUP CONFERENCE 2009 (EMAG 2009)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Electron-Microscopy-and-Analysis-Group Conference 2009
CY SEP 08-11, 2009
CL Univ Sheffield, Sheffield, ENGLAND
SP Electron Microscopy & Anal Grp
HO Univ Sheffield
AB Energy loss spectra from a variety of cubic oxides are compared with ab-initio calculations based on the density functional plane wave method (CASTEP). In order to obtain agreement between experimental and theoretical spectra, unique material specific considerations were taken into account. The spectra were calculated using various approximations to describe core-hole effects and electron correlation. The calculations are based on both the generalized gradient approach and the local spin density approximation when dealing with the correlation in to show qualitative agreement with the sensitive oxygen K-edge spectra in ceria, zirconia, and urania. Comparison of experimental and theoretical results let us characterize the main electronic interactions responsible for both the electronic structure and the resulting EELS spectra of the compounds in question.
C1 [Aguiar, J. A.; Browning, N. D.] Lawrence Livermore Natl Lab, 3000 East Ave, Livermore, CA 94520 USA.
[Aguiar, J. A.; Groenbech-Jensen, N.; Browning, N. D.] Univ Calif Davis, Davis, CA 95616 USA.
[Milman, V.] Accelrys Inc, Cambridge CB4 0WN, England.
[Gao, S. P.] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China.
[Groenbech-Jensen, N.; Pickard, C. J.] UCL, London WC1E 6BT, England.
RP Aguiar, JA (reprint author), Lawrence Livermore Natl Lab, 3000 East Ave, Livermore, CA 94520 USA.
EM aguiar9@llnl.gov
RI Milman, Victor/M-6117-2015; Pickard, Chris/D-4704-2016;
OI Milman, Victor/0000-0003-2258-1347; Pickard, Chris/0000-0002-9684-5432;
Browning, Nigel/0000-0003-0491-251X; Aguiar, Jeffery/0000-0001-6101-4762
FU US Department of Energy Nuclear Energy Research Initiative for Consortia
[DR-FG07-071D14893]; U.S. Department of Energy by Lawrence Livermore
National Laboratory [E-AC52-07NA27344]
FX The authors would like to credit US Department of Energy Nuclear Energy
Research Initiative for Consortia contract number DR-FG07-071D14893.This
work performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract E-AC52-07NA27344.
The authors would also like to credit the following collaborators Mark
Asta, Warren Pickett, John Bradley, Zurong Dai, Sean McNary.
NR 6
TC 6
Z9 6
U1 0
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 241
AR UNSP 012062
DI 10.1088/1742-6596/241/1/012062
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Microscopy; Spectroscopy
SC Science & Technology - Other Topics; Materials Science; Microscopy;
Spectroscopy
GA BTQ50
UT WOS:000287783500062
ER
PT S
AU Rodriguez, MA
Pepe, A
Shinavier, J
AF Rodriguez, Marko A.
Pepe, Alberto
Shinavier, Joshua
BE Badr, Y
Chbeir, R
Abraham, A
Hassanien, AE
TI The Dilated Triple
SO EMERGENT WEB INTELLIGENCE: ADVANCED SEMANTIC TECHNOLOGIES
SE Advanced Information and Knowledge Processing
LA English
DT Article; Book Chapter
ID CONSTRAINED SPREADING ACTIVATION; SEMANTIC NETWORKS; WEB; INFORMATION;
REVOLUTION
AB The basic unit of meaning on the Semantic Web is the RDF statement, or triple, which combines a distinct subject, predicate and object to make a definite assertion about the world. A set of triples constitutes a graph, to which they give a collective meaning. It is upon this simple foundation that the rich, complex knowledge structures of the Semantic Web are built. Yet the very expressiveness of RDF, by inviting comparison with real-world knowledge, highlights a fundamental shortcoming, in that RDF is limited to statements of absolute fact, independent of the context in which a statement is asserted. This is in stark contrast with the thoroughly context-sensitive nature of human thought. The model presented here provides a particularly simple means of contextualizing an RDF triple by associating it with related statements in the same graph. This approach, in combination with a notion of graph similarity, is sufficient to select only those statements from an RDF graph which are subjectively most relevant to the context of the requesting process.
C1 [Rodriguez, Marko A.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Pepe, Alberto] Univ Calif Los Angeles, Ctr Embedded Networked Sensing, Los Angeles, CA 90095 USA.
[Shinavier, Joshua] Knowledge Reef Syst Inc, Semant Network Res Grp, Santa Fe, NM 87501 USA.
RP Rodriguez, MA (reprint author), Los Alamos Natl Lab, T-5 Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
EM marko@lanl.gov; apepe@ucla.edu; josh@fortytwo.net
NR 49
TC 0
Z9 0
U1 2
U2 3
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 1610-3947
BN 978-1-84996-076-2
J9 ADV INFORM KNOWL PRO
PY 2010
BP 3
EP 15
DI 10.1007/978-1-84996-077-9_1
D2 10.1007/978-1-84996-077-9
PG 13
WC Computer Science, Artificial Intelligence; Computer Science, Information
Systems
SC Computer Science
GA BPE76
UT WOS:000278713100001
ER
PT S
AU Rodriguez, MA
AF Rodriguez, Marko A.
BE Badr, Y
Chbeir, R
Abraham, A
Hassanien, AE
TI General-Purpose Computing on a Semantic Network Substrate
SO EMERGENT WEB INTELLIGENCE: ADVANCED SEMANTIC TECHNOLOGIES
SE Advanced Information and Knowledge Processing
LA English
DT Article; Book Chapter
AB This article presents a model of general-purpose computing on a semantic network substrate. The concepts presented are applicable to any semantic network representation. However, due to the standards and technological infrastructure devoted to the Semantic Web effort, this article is presented from this point of view. In the proposed model of computing, the application programming interface, the run-time program, and the state of the computing virtual machine are all represented in the Resource Description Framework (RDF). The implementation of the concepts presented provides a computing paradigm that leverages the distributed and standardized representational-layer of the Semantic Web.
C1 Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
RP Rodriguez, MA (reprint author), Los Alamos Natl Lab, Ctr Nonlinear Studies, T-5, Los Alamos, NM 87545 USA.
EM marko@lanl.gov
NR 44
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 1610-3947
BN 978-1-84996-076-2
J9 ADV INFORM KNOWL PRO
PY 2010
BP 57
EP 102
DI 10.1007/978-1-84996-077-9_4
D2 10.1007/978-1-84996-077-9
PG 46
WC Computer Science, Artificial Intelligence; Computer Science, Information
Systems
SC Computer Science
GA BPE76
UT WOS:000278713100004
ER
PT S
AU Pauzauskie, PJ
Hsu, HY
Jamshidi, A
Valley, JK
Pei, SN
Wu, MC
AF Pauzauskie, Peter J.
Hsu, Hsan-Yin
Jamshidi, Arash
Valley, Justin K.
Pei, Shao Ning
Wu, Ming C.
BE Douglass, MR
Hornbeck, LJ
TI Quantifying Heat Transfer in DMD-based Optoelectronic Tweezers with
Infrared Thermography
SO EMERGING DIGITAL MICROMIRROR DEVICE BASED SYSTEMS AND APPLICATIONS II
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Emerging Digital Micromirror Device Based Systems and
Applications II
CY JAN 27, 2010
CL San Francisco, CA
SP SPIE, Texas Instruments Inc.
DE optoelectronic tweezers; dielectrophoresis; optical manipulation;
thermography; heat transfer
ID OPTICAL TRAPS; CARBON NANOTUBES; SINGLE CELLS; MANIPULATION;
NANOPARTICLES; PARTICLES; NANOWIRES; MOLECULES; IMAGES
AB Optoelectronic tweezers (OET) have emerged in recent years as a powerful form of optically-induced dielectrophoresis for addressing single cells and trapping individual nanostructures with DMD-based virtual-electrodes. In this technique an alternating electric field is used to induce a dipole within structures of interest while very low-intensity optical images are used to produce local electric field gradients that create dynamic trapping potentials. Addressing living cells, particularly for heat-sensitive cell lines, with OET's optical virtual-electrodes requires an in-depth understanding of heating profiles within OET devices. In this work we present quantitative measurements of the thermal characteristics of single-crystalline-silicon phototransistor based optoelectronic tweezers (PhOET). Midwave infrared (3 - 5 micron) thermographic imaging is used to determine relative heating in PhOET devices both with and without DMD-based optical actuation. Temperature increases of approximately 2 degrees C from electrolyte Joule-heating are observable in the absence of DMD-illumination when glass is used as a support for PhOET devices. An additional temperature increase of no more than 0.2 degrees C is observed when DMD-illumination is used. Furthermore, significantly reduced heating can be achieved when devices are fabricated in direct contact with a metallic heat-sink.
C1 [Pauzauskie, Peter J.] Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94551 USA.
RP Pauzauskie, PJ (reprint author), Lawrence Livermore Natl Lab, Div Chem Sci, Livermore, CA 94551 USA.
EM pauzauskie1@llnl.gov
NR 45
TC 1
Z9 1
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7992-1
J9 PROC SPIE
PY 2010
VL 7596
AR 759609
DI 10.1117/12.846247
PG 8
WC Engineering, Biomedical; Optics
SC Engineering; Optics
GA BSG22
UT WOS:000284357800008
ER
PT B
AU Borole, AP
Hamilton, CY
AF Borole, Abhijeet P.
Hamilton, Choo Y.
BE Shah, V
TI Energy Production from Food Industry Wastewaters Using
Bioelectrochemical Cells
SO EMERGING ENVIRONMENTAL TECHNOLOGIES, VOL II
LA English
DT Article; Book Chapter
DE Microbial fuel and electrolysis cell; Electricity; Wastewater resource;
Hydrogen; Power density
ID MICROBIAL FUEL-CELL; WASTE-WATER TREATMENT; CONTINUOUS
ELECTRICITY-GENERATION; SHEWANELLA-ONEIDENSIS DSP10;
ANAEROBIC-DIGESTION; HYDROGEN-PRODUCTION; POWER-GENERATION; TECHNOLOGY;
PERFORMANCE; ACETATE
AB Conversion of waste and renewable resources to energy using microbial fuel cells (MFCs) is an upcoming technology for enabling a cleaner and sustainable environment. This chapter assesses the energy production potential from the US food industry wastewater resource. It also reports on an experimental study investigating conversion of wastewater from a local milk dairy plant to electricity. An MFC anode biocatalyst enriched on model sugar and organic acid substrates was used as the inoculum for the dairy wastewater MFC. The tests were conducted using a two-chamber MFC with a porous three dimensional anode and a Pt/C air-cathode. Power densities up to 690 mW/m(2) (54 W/m(3)) were obtained.
Analysis of the food industry wastewater resource indicated that MFCs can potentially recover 2-260 kWh/ton of food processed from wastewaters generated during food processing, depending on the biological oxygen demand and volume of water used in the process. A total of 1960 MW of power can potentially be produced from US milk industry wastewaters alone. Hydrogen is an alternate form of energy of that can be produced using bioelectrochemical cells. Approximately 2-270 m(3) hydrogen can be generated per ton of the food processed. Application of MFCs for treatment of food processing wastewaters requires further investigations into electrode design, materials, liquid flow management, proton transfer, organic loading and scale-up to enable high power densities at the larger scale. Potential for water recycle also exists, but requires careful consideration of the microbiological safety and regulatory aspects and the economic feasibility of the process.
C1 [Borole, Abhijeet P.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
[Hamilton, Choo Y.] Univ Tennessee, Knoxville, TN USA.
RP Borole, AP (reprint author), Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
EM borolea@ornl.gov
OI Borole, Abhijeet/0000-0001-8423-811X
NR 60
TC 2
Z9 2
U1 6
U2 17
PU SPRINGER
PI DORDRECHT
PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
BN 978-90-481-3351-2
PY 2010
BP 97
EP 113
DI 10.1007/978-90-481-3352-9_5
D2 10.1007/978-90-481-3352-9
PG 17
WC Engineering, Environmental; Environmental Sciences; Environmental
Studies
SC Engineering; Environmental Sciences & Ecology
GA BMS45
UT WOS:000273466000005
ER
PT S
AU Anglani, R
AF Anglani, Roberto
BE Blaschke, D
Turko, L
TI A MICROSCOPIC STUDY OF PION CONDENSATION WITHIN NAMBU-JONA-LASINIO MODEL
SO EMMI WORKSHOP AND 26TH MAX BORN SYMPOSIUM: THREE DAYS OF STRONG
INTERACTIONS
SE Acta Physica Polonica B Proceedings Supplement
LA English
DT Proceedings Paper
CT EMMI Workshop/26th Max born Symposium on Three Days of Strong
Interactions
CY JUL 09-11, 2009
CL Univ Wroclaw, Wroclaw, POLAND
SP Univ Wroclaw, Inst Theoret Phys, ExtreMe Matter Inst (EMMI), GSI Helmholtz Ctr Heavy Ion Res
HO Univ Wroclaw
ID HEAVY-ION COLLISIONS; NUCLEAR-MATTER; DENSITY; PHASE; QCD
AB We have studied the phenomenology of pion condensation in 2-flavor neutral quark matter at finite density with Nambu-Jona-Lasinio (NJL) model of QCD. We have discussed the role of the bare quark mass m and the electric chemical potential mu(e) in controlling the condensation. The central result of this work is that the onset for pi-condensed phase occurs when vertical bar mu(e)vertical bar reaches the value of the in-medium pion mass M(pi), provided the transition is of the second order, even for a composite pion system in the medium. Finally, we have shown that the condensation is extremely fragile with respect to the explicit chiral symmetry breaking via a finite current quark mass.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Anglani, R (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
NR 33
TC 2
Z9 2
U1 0
U2 1
PU JAGIELLONIAN UNIV
PI CRACOW
PA GOLEBIA 24, 31-007 CRACOW, POLAND
SN 1899-2358
J9 ACTA PHYS POL B PR S
PY 2010
VL 3
IS 3
BP 735
EP 740
PG 6
WC Physics, Multidisciplinary
SC Physics
GA BRR21
UT WOS:000283471100026
ER
PT B
AU Volkow, ND
Baler, R
AF Volkow, N. D.
Baler, R.
BE Koob, GF
LeMoal, M
Thompson, RF
TI Brain Imaging and Addiction
SO ENCYCLOPEDIA OF BEHAVIORAL NEUROSCIENCE, VOL 1: A-G
LA English
DT Article; Book Chapter
ID DOPAMINE; ABUSE; METABOLISM; RECEPTORS; STRIATUM; HUMANS
C1 [Volkow, N. D.] NIH, Bethesda, MD 20892 USA.
[Baler, R.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Volkow, ND (reprint author), NIH, Bldg 10, Bethesda, MD 20892 USA.
RI koob, george/P-8791-2016
NR 16
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-08-045396-5; 978-0-08-044732-2
PY 2010
BP 194
EP 202
PG 9
WC Behavioral Sciences; Neurosciences
SC Behavioral Sciences; Neurosciences & Neurology
GA BA3WW
UT WOS:000335045400028
ER
PT J
AU Heldebrant, DJ
Koech, PK
Yonker, CR
AF Heldebrant, David J.
Koech, Phillip K.
Yonker, Clement R.
TI A reversible zwitterionic SO2-binding organic liquid
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID PIPERYLENE SULFONE; SULFUR-DIOXIDE; IONIC LIQUIDS; SO2; SUBSTITUTE;
SOLUBILITY
AB N,N-Dibutylundecanolamine is a liquid that chemically binds SO2 to form a viscous zwitterionic liquid that contains 35% by wt. SO2 at standard temperature and pressure. SO2 is chemically bound to the alcohol component as an alkylsulfite, which is then stabilized by the amine. The zwitterionic liquid can be reverted to its non-ionic form and recycled by thermally stripping the SO2 under vacuum at temperatures near 70 degrees C. N,N-Dibutylundecanolamine is a potential flue gas desulfurizing solvent because it is chemically selective to bind SO2 but not basic enough to chemically bind CO2.
C1 [Heldebrant, David J.; Koech, Phillip K.] Pacific NW Natl Lab, Mat Chem & Surface Res Grp, Energy & Efficiency Div, Richland, WA 99352 USA.
[Yonker, Clement R.] Pacific NW Natl Lab, Mol Interact & Transformat Grp, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA.
RP Heldebrant, DJ (reprint author), Pacific NW Natl Lab, Mat Chem & Surface Res Grp, Energy & Efficiency Div, Richland, WA 99352 USA.
EM david.heldebrant@pnl.gov; phillip.koech@pnl.gov; clem.yonker@pnl.gov
OI Koech, Phillip/0000-0003-2996-0593
NR 23
TC 39
Z9 39
U1 1
U2 36
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 1
BP 111
EP 113
DI 10.1039/b916550a
PG 3
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 540NH
UT WOS:000273338900008
ER
PT J
AU Lassalle-Kaiser, B
Hureau, C
Pantazis, DA
Pushkar, Y
Guillot, R
Yachandra, VK
Yano, J
Neese, F
Anxolabehere-Mallart, E
AF Lassalle-Kaiser, Benedikt
Hureau, Christelle
Pantazis, Dimitrios A.
Pushkar, Yulia
Guillot, Regis
Yachandra, Vittal K.
Yano, Junko
Neese, Frank
Anxolabehere-Mallart, Elodie
TI Activation of a water molecule using a mononuclear Mn complex: from
Mn-aquo, to Mn-hydroxo, to Mn-oxyl via charge compensation
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID OXYGEN-EVOLVING COMPLEX; RAY-ABSORPTION SPECTROSCOPY; COUPLED
ELECTRON-TRANSFER; O BOND FORMATION; DENSITY-FUNCTIONAL THEORY;
SCHIFF-BASE COMPLEXES; PHOTOSYNTHETIC MN4CA CLUSTER; UNSUPPORTED OXO
BRIDGE; C-H OXIDATION; PHOTOSYSTEM-II
AB Activation of a water molecule by the electrochemical oxidation of a Mn-aquo complex accompanied by the loss of protons is reported. The sequential (2 x 1 electron/1 proton) and direct (2 electron/2 proton) proton-coupled electrochemical oxidation of a non-porphyrinic six-coordinated Mn(II)OH(2) complex into a mononuclear Mn(O) complex is described. The intermediate Mn(III)OH(2) and Mn(III) OH complexes are electrochemically prepared and analysed. Complete deprotonation of the coordinated water molecule in the Mn(O) complex is confirmed by electrochemical data while the analysis of EXAFS data reveals a gradual shortening of an Mn-O bond upon oxidation from Mn(II)OH(2) to Mn(III) OH and Mn(O). Reactivity experiments, DFT calculations and XANES pre-edge features provide strong evidence that the bonding in Mn(O) is best characterized by a Mn(III)-oxyl description. Such oxyl species could play a crucial role in natural and artificial water splitting reactions. We provide here a synthetic example for such species, obtained by electrochemical activation of a water ligand.
C1 [Lassalle-Kaiser, Benedikt; Guillot, Regis; Anxolabehere-Mallart, Elodie] Univ Paris 11, ICMMO, CNRS, UMR 8182, F-91405 Orsay, France.
[Hureau, Christelle] CNRS, LCC, F-31077 Toulouse, France.
[Hureau, Christelle] Univ Toulouse, UPS, INPT, LCC, F-31077 Toulouse, France.
[Pantazis, Dimitrios A.; Neese, Frank] Univ Bonn, Inst Phys & Theoret Chem, D-53115 Bonn, Germany.
[Pantazis, Dimitrios A.; Neese, Frank] Max Planck Inst Bioinorgan Chem, D-45470 Mulheim, Germany.
[Lassalle-Kaiser, Benedikt; Pushkar, Yulia; Yachandra, Vittal K.; Yano, Junko] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Lassalle-Kaiser, B (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM bblassalle@lbl.gov; christelle.hureau@lcc-toulouse.fr;
pantazis@thch.uni-bonn.de; ypushkar@purdue.edu;
regisguillot@icmo.u-psud.fr; VKYachandra@lbl.gov; JYano@lbl.gov;
neese@thch.uni-bonn.de; elodie.anxolabehere@univ-paris-diderot.fr
RI Pantazis, Dimitrios/A-2434-2010; Neese, Frank/J-4959-2014
OI Pantazis, Dimitrios/0000-0002-2146-9065; Neese,
Frank/0000-0003-4691-0547
FU DOE; Office of Science, Office of Basic Energy Sciences (OBES), Chemical
Sciences, Geosciences, and Biosciences Division [DE-AC02-05CH11231]; NIH
[GM 55302]; France-Berkeley Fund; OBER; NIH, NCRR; European Project
[SolarH2]; ANR; Max-Plank society; University of Bonn; Special Research
Unit [SFB 813]
FX Part of this work (J. Y. and V. Y.) was supported by the DOE, Director,
Office of Science, Office of Basic Energy Sciences (OBES), Chemical
Sciences, Geosciences, and Biosciences Division, under Contract
DE-AC02-05CH11231, the NIH grant (GM 55302 to V. Y.), and
France-Berkeley Fund (E. A.-M. and J. Y.). Portions of this research
were carried out at SSRL, operated by Stanford University for DOE, OBES.
The SSRL SMB Program is supported by the DOE, OBER and by the NIH, NCRR.
Financial support (B. L. and E. A.-M.) from European Project SolarH2 and
ANR (PROTOCOLE grant to E. A.-M.) is gratefully acknowledged. This work
was also supported by the Max-Plank society, the University of Bonn and
Special Research Unit SFB 813 (D. P. and F. N.).
NR 110
TC 23
Z9 24
U1 2
U2 32
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 7
BP 924
EP 938
DI 10.1039/b926990h
PG 15
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 618AH
UT WOS:000279322800007
PM 24772190
ER
PT J
AU Jiao, F
Frei, H
AF Jiao, Feng
Frei, Heinz
TI Nanostructured cobalt and manganese oxide clusters as efficient water
oxidation catalysts
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Review
ID OXYGEN-EVOLVING CATALYSTS; COLLOIDAL IRIDIUM OXIDE; MESOPOROUS SILICA;
ANODIC CHARACTERISTICS; PHOTOCATALYTIC OXIDATION; ALKALINE-SOLUTIONS;
ELECTRON-TRANSFER; PHOTOSYSTEM-II; METAL-OXIDES; EVOLUTION
AB Recent development of new methods of preparing cobalt oxide and manganese oxide clusters has led to oxygen evolving catalysts that operate under mild conditions and modest overpotentials at rates approaching practical utility. Synthesis of nanostructured Co(3)O(4) and Mn oxide clusters in mesoporous silica scaffolds affords catalysts with very high densities of surface metal sites per projected area, with the silica environment providing stability in terms of dispersion of the clusters and prevention of restructuring of catalytic surface sites. Stacking of the nanoclusters of these earth abundant, durable oxide catalysts in the scaffold results in turnover frequencies per projected area that are sufficient for keeping up with the photon flux at high solar intensity. Opportunities for expanding the metal oxide/silica interface approach to heterogeneous water oxidation catalysis to a more general approach for multi-electron catalyst designs based on core/shell constructs are discussed. The results are reviewed in the context of all-inorganic materials for catalytic water oxidation reported recently from other laboratories, in particular electrodeposits generated from Co phosphate solutions, a molecular water oxidation catalyst based on a polyoxotungstate featuring a Co oxide core, and Mn oxide materials with incorporated Ca ions.
C1 [Jiao, Feng; Frei, Heinz] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Jiao, F (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
EM HMFrei@lbl.gov
RI Jiao, Feng/E-7766-2010
FU Helios Solar Energy Research Center, Office of Science, Office of Basic
Energy Sciences of the US Department of Energy [DE-AC02-05CH11231];
National Center for Electron Microscopy, Lawrence Berkeley National
Laboratory, US Department of Energy; Department of Energy, Office of
Biological and Environmental Research; National Institutes of Health,
National Center for Research Resources
FX This work was funded by the Helios Solar Energy Research Center, which
is supported by the Director, Office of Science, Office of Basic Energy
Sciences of the US Department of Energy under Contract No.
DE-AC02-05CH11231. The authors acknowledge the support of the National
Center for Electron Microscopy, Lawrence Berkeley National Laboratory,
which is supported by the US Department of Energy. Portions of this
research were carried out at the Stanford Synchrotron Radiation
Laboratory, a national user facility operated by Stanford University on
behalf of the US Department of Energy, Office of Basic Energy Sciences.
The SSRL Structural Molecular Biology Program is supported by the
Department of Energy, Office of Biological and Environmental Research,
and by the National Institutes of Health, National Center for Research
Resources, Biomedical Technology Program.
NR 64
TC 277
Z9 279
U1 34
U2 435
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 8
BP 1018
EP 1027
DI 10.1039/c002074e
PG 10
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 633PB
UT WOS:000280514200004
ER
PT J
AU Lacina, D
Wegrzyn, J
Reilly, J
Celebi, Y
Graetz, J
AF Lacina, David
Wegrzyn, James
Reilly, James
Celebi, Yusuf
Graetz, Jason
TI Regeneration of aluminium hydride using dimethylethylamine
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID REVERSIBLE HYDROGEN STORAGE; CRYSTAL-STRUCTURE; GAMMA-POLYMORPHS;
TERTIARY AMINES; ALANE; COMPLEXES; THERMODYNAMICS; SPECTROSCOPY;
ABSORPTION; SPECTRUM
AB Aluminium hydride is a compound that is well known for its high gravimetric and volumetric hydrogen densities and favorable hydrogen storage properties. Tertiary amine-aluminium hydride complexes have gained interest due to their application as chemical reducing agents and in aluminium thin-film deposition. Various complexes of these amine alane compounds have been created and studied previously, but these compounds were not formed directly using pressurized hydrogen. Here, we demonstrate the direct reaction of catalyzed aluminium, a tertiary amine, and hydrogen in a common solvent proceeds to form an amine alane adduct at moderate pressures and temperatures. A complex of aluminium hydride has been formed with dimethylethylamine by this technique. A vibrational analysis of the product of these reactions by Raman and infrared spectroscopy is presented, including experimental and theoretical data. The results clarify the molecular and vibrational structure of amine alane complexes formed by direct hydrogenation and are compared with previously determined experimental information. In addition, we demonstrate a new method for the formation of triethylamine alane using the direct hydrogenation of dimethylethylamine and catalyzed aluminium followed by transamination with triethylamine. Finally, we propose a new low energy method to regenerate AlH(3) from catalyzed aluminium and hydrogen gas.
C1 [Lacina, David; Wegrzyn, James; Reilly, James; Celebi, Yusuf; Graetz, Jason] Brookhaven Natl Lab, Dept Energy Sci & Technol, Upton, NY 11973 USA.
RP Lacina, D (reprint author), Brookhaven Natl Lab, Dept Energy Sci & Technol, Upton, NY 11973 USA.
EM dlacina@bnl.gov
FU Metal Hydrides Center of Excellence, Office of Energy Efficiency and
Renewable Energy; Hydrogen Fuel Initiative, Office of Basic Energy
Sciences, US Department of Energy [DE-AC02-98CH1-886]; US Department of
Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]
FX This work was supported through the Metal Hydrides Center of Excellence,
Office of Energy Efficiency and Renewable Energy, and the Hydrogen Fuel
Initiative, Office of Basic Energy Sciences, US Department of Energy,
under Contract No. DE-AC02-98CH1-886. Research carried out at the Center
for Functional Nanomaterials, Brookhaven National Laboratory, supported
by the US Department of Energy, Office of Basic Energy Sciences, under
Contract No. DE-AC02-98CH10886. The authors thank Arthur Sedlacek, John
Johnson, and Weimin Zhou for their assistance.
NR 35
TC 25
Z9 25
U1 1
U2 18
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 8
BP 1099
EP 1105
DI 10.1039/c002064h
PG 7
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 633PB
UT WOS:000280514200013
ER
PT J
AU Arvizu, D
AF Arvizu, Dan
TI New science strengthens the promise of renewable fuels
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Editorial Material
ID LAND-USE CHANGE; BIOFUELS; US; EMISSIONS
C1 Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Arvizu, D (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd Golden, Golden, CO 80401 USA.
NR 12
TC 2
Z9 2
U1 1
U2 3
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 10
BP 1378
EP 1381
DI 10.1039/c0ee00091d
PG 4
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 656GA
UT WOS:000282314300001
ER
PT J
AU Devanathan, R
Van Brutzel, L
Chartier, A
Gueneau, C
Mattsson, AE
Tikare, V
Bartel, T
Besmann, T
Stan, M
Van Uffelen, P
AF Devanathan, Ram
Van Brutzel, Laurent
Chartier, Alain
Gueneau, Christine
Mattsson, Ann E.
Tikare, Veena
Bartel, Timothy
Besmann, Theodore
Stan, Marius
Van Uffelen, Paul
TI Modeling and simulation of nuclear fuel materials
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Review
ID MOLECULAR-DYNAMICS SIMULATION; CHEMICAL THERMODYNAMIC REPRESENTATION;
GENERALIZED GRADIENT APPROXIMATION; TEMPERATURE-ACCELERATED DYNAMICS;
YTTRIA-STABILIZED ZIRCONIA; GRAIN-BOUNDARY MOBILITY; PHASE-FIELD MODEL;
URANIUM-DIOXIDE; COMPUTER-SIMULATION; POINT-DEFECTS
AB We review the state of modeling and simulation of nuclear fuels with emphasis on the most widely used nuclear fuel, UO2. The hierarchical scheme presented represents a science-based approach to modeling nuclear fuels by progressively passing information in several stages from electronic structure calculations to continuum level simulations. Such an approach is essential to overcome the challenges posed by radioactive materials handling, experimental limitations in modeling extreme conditions and accident scenarios, and the small time and distance scales of fundamental processes. When used in conjunction with experimental validation, this multiscale modeling scheme can provide valuable guidance to development of fuel for advanced reactors to meet rising global energy demand.
C1 [Devanathan, Ram] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Van Brutzel, Laurent; Chartier, Alain; Gueneau, Christine] CEA, Serv Chim Phys, F-91191 Gif Sur Yvette, France.
[Mattsson, Ann E.; Tikare, Veena; Bartel, Timothy] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Besmann, Theodore] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Stan, Marius] Los Alamos Natl Lab, Los Alamos, NM USA.
[Van Uffelen, Paul] Commiss European Communities, Joint Res Ctr, Inst Transuranium Elements, D-7500 Karlsruhe, Germany.
RP Devanathan, R (reprint author), Pacific NW Natl Lab, MS K2-01,POB 999, Richland, WA 99352 USA.
EM ram.devanathan@pnl.gov
RI Devanathan, Ram/C-7247-2008; Albe, Karsten/F-1139-2011
OI Devanathan, Ram/0000-0001-8125-4237;
FU U. S. Department of Energy (DOE); Sandia National Laboratories; U.S.
Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]; European Commission [211690]; DOE
FX RD was supported by the U. S. Department of Energy (DOE) Nuclear Energy
Advanced Modeling and Simulation (NEAMS) program at Pacific Northwest
National Laboratory-a multiprogram laboratory operated for DOE by
Battelle. AEM wants to acknowledge support from the LDRD program at
Sandia National Laboratories. Sandia National Laboratories is a
multiprogram laboratory operated by Sandia Corporation, a wholly owned
subsidiary of Lockheed Martin company, for the U.S. Department of
Energy's National Nuclear Security Administration under contract
DE-AC04-94AL85000. LVB, AC and CG acknowledge funding through the
European Commission under the FP7 F-BRIDGE project (Contract No.
211690). MS' work was occasionally supported by the DOE NEAMS program
NR 140
TC 34
Z9 34
U1 10
U2 66
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
EI 1754-5706
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 10
BP 1406
EP 1426
DI 10.1039/c0ee00028k
PG 21
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 656GA
UT WOS:000282314300004
ER
PT J
AU Zhou, YK
Neyerlin, K
Olson, TS
Pylypenko, S
Bult, J
Dinh, HN
Gennett, T
Shao, ZP
O'Hayre, R
AF Zhou, Yingke
Neyerlin, Kenneth
Olson, Tim S.
Pylypenko, Svitlana
Bult, Justin
Dinh, Huyen N.
Gennett, Thomas
Shao, Zongping
O'Hayre, Ryan
TI Enhancement of Pt and Pt-alloy fuel cell catalyst activity and
durability via nitrogen-modified carbon supports
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Review
ID OXYGEN REDUCTION REACTION; RADIO-FREQUENCY PLASMAS; DOPED CARBON;
METHANOL OXIDATION; PLATINUM NANOPARTICLES; GLASSY-CARBON;
POLYACRYLONITRILE FOAM; NANOFIBER ELECTRODES; ION-IMPLANTATION;
VAPOR-DEPOSITION
AB Insufficient catalytic activity and durability are key barriers to the commercial deployment of low temperature polymer electrolyte membrane (PEM) and direct-methanol fuel cells (DMFCs). Recent observations suggest that carbon-based catalyst support materials can be systematically doped with nitrogen to create strong, beneficial catalyst-support interactions which substantially enhance catalyst activity and stability. Data suggest that nitrogen functional groups introduced into a carbon support appear to influence at least three aspects of the catalyst/support system: 1) modified nucleation and growth kinetics during catalyst nanoparticle deposition, which results in smaller catalyst particle size and increased catalyst particle dispersion, 2) increased support/catalyst chemical binding (or "tethering''), which results in enhanced durability, and 3) catalyst nanoparticle electronic structure modification, which enhances intrinsic catalytic activity. This review highlights recent studies that provide broad-based evidence for these nitrogen-modification effects as well as insights into the underlying fundamental mechanisms.
C1 [Zhou, Yingke; Pylypenko, Svitlana; O'Hayre, Ryan] Colorado Sch Mines, Dept Met & Mat Engn, Golden, CO 80401 USA.
[Neyerlin, Kenneth; Olson, Tim S.; Pylypenko, Svitlana; Bult, Justin; Dinh, Huyen N.; Gennett, Thomas] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Zhou, Yingke; Shao, Zongping] Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Coll Chem & Chem Engn, Nanjing 210009, Peoples R China.
RP Zhou, YK (reprint author), Colorado Sch Mines, Dept Met & Mat Engn, 1500 Illinois St, Golden, CO 80401 USA.
EM zhouyk888@hotmail.com; rohayre@mines.edu
RI shao, zongping/B-5250-2013; O'Hayre, Ryan/A-8183-2009
FU Army Research Office [W911NF-09-1-0528]; U.S. Department of Energy
[DE-AC36-08-GO28308]; National Renewable Energy Laboratory
FX The authors acknowledge support from the Army Research Office under
grant #W911NF-09-1-0528 and the U.S. Department of Energy under Contract
No. DE-AC36-08-GO28308 with the National Renewable Energy Laboratory.
NR 96
TC 266
Z9 271
U1 22
U2 284
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 10
BP 1437
EP 1446
DI 10.1039/c003710a
PG 10
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 656GA
UT WOS:000282314300006
ER
PT J
AU Devanathan, R
Weber, WJ
Gale, JD
AF Devanathan, Ram
Weber, William J.
Gale, Julian D.
TI Radiation tolerance of ceramics-insights from atomistic simulation of
damage accumulation in pyrochlores
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID MOLECULAR-DYNAMICS; INDUCED AMORPHIZATION; NUCLEAR-POWER; OXIDES;
IRRADIATION; DISORDER
AB We have used molecular dynamics simulations to investigate the effects of radiation damage accumulation in two pyrochlore-structured ceramics, namely Gd(2)Ti(2)O(7) and Gd(2)Zr(2)O(7). It is well known from experiment that the titanate is susceptible to radiation-induced amorphization, while the zirconate does not go amorphous under prolonged irradiation. Our simulations show that cation Frenkel pair accumulation eventually leads to amorphization of Gd(2)Ti(2)O(7), and both anion disorder and cation disorder occur during damage accumulation. Amorphization in Gd(2)Ti(2)O(7) is accompanied by a density decrease of about 12.7% and a decrease of about 50% in the elastic modulus. In Gd(2)Zr(2)O(7), amorphization does not occur, because the residual damage introduced by radiation is not sufficiently energetic to destabilize the crystal structure and drive the material amorphous. Subtle differences in damage accumulation and annealing between the two pyrochlores lead to drastically different radiation response as the damage accumulates.
C1 [Devanathan, Ram] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
[Weber, William J.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
[Weber, William J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Gale, Julian D.] Curtin Univ Technol, Dept Chem, Nanochem Res Inst, Perth, WA 6845, Australia.
RP Devanathan, R (reprint author), Pacific NW Natl Lab, Div Chem & Mat Sci, MS K2-01, Richland, WA 99352 USA.
EM ram.devanathan@pnl.gov
RI Weber, William/A-4177-2008; Gale, Julian/B-7987-2009; Devanathan,
Ram/C-7247-2008
OI Weber, William/0000-0002-9017-7365; Gale, Julian/0000-0001-9587-9457;
Devanathan, Ram/0000-0001-8125-4237
FU Materials Sciences and Engineering Division, Office of Basic Energy
Sciences, US Department of Energy (DOE) [DE-AC05-76RL01830]; Australian
Research Council
FX This research was supported by the Materials Sciences and Engineering
Division, Office of Basic Energy Sciences, US Department of Energy (DOE)
under Contract DE-AC05-76RL01830. It was performed in part using the
Molecular Science Computing Facility in the Environmental Molecular
Sciences Laboratory, a national scientific user facility sponsored by
the US DOE, Office of Biological and Environmental Research and located
at Pacific Northwest National Laboratory (PNNL). JDG would like to thank
the Australian Research Council for a professorial fellowship.
NR 34
TC 26
Z9 30
U1 5
U2 36
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 10
BP 1551
EP 1559
DI 10.1039/c0ee00066c
PG 9
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 656GA
UT WOS:000282314300021
ER
PT J
AU Lee, JW
Hawkins, B
Day, DM
Reicosky, DC
AF Lee, James Weifu
Hawkins, Bob
Day, Danny M.
Reicosky, Donald C.
TI Sustainability: the capacity of smokeless biomass pyrolysis for energy
production, global carbon capture and sequestration
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID ARBUSCULAR MYCORRHIZAL FUNGI; CLIMATE-CHANGE; CO2 EMISSIONS; BLACK;
HYDROGEN; CHARCOAL; SOIL; AGRICULTURE; CONSTRAINTS; SYSTEMS
AB Smokeless biomass pyrolysis for biochar and biofuel production is a possible arsenal for global carbon capture and sequestration at gigatons of carbon (GtC) scales. The United States can annually harvest over 1.3 Gt (gigaton) of dry biomass. Use of the smokeless (clean and efficient) biomass-pyrolysis technology would enable the United States to converts its 1.3 Gt of annually harvestable biomass to biochar products equivalent to 325 million tons of stable carbon plus significant amount of biofuels including syngas and bio-oils. Currently, the world could annually harvest more than 6.5 GtC y(-1) of biomass. The 6.5 GtC y(-1) of biomass could be converted to biochar (3.25 GtC y(-1)) and biofuels (with heating value equivalent to that of 6500 million barrels of crude oil). Because biochar is mostly not digestible to microorganisms, a biochar-based soil amendment could serve as a permanent carbon-sequestration agent in soils/subsoil earth layers for thousands of years. By storing 3.25 GtC y(-1) of biochar (equivalent to 11.9 Gt of CO(2) per year) into soil and/or underground reservoirs alone, it would offset the world's 8.67 GtC y(-1) of fossil fuel CO(2) emissions by about 38%. The worldwide maximum capacity for storing biochar carbon into agricultural soils (1411 million hectares) is estimated to be about 428 GtC. It may be also possible to provide a global carbon "thermostat" mechanism by creating biochar carbon energy storage reserves. This biomass-pyrolysis "carbon-negative" energy approach merits serious research and development worldwide to help provide clean energy and control global warming for a sustainable future of human civilization on Earth.
C1 [Lee, James Weifu] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Hawkins, Bob] BiocharConsulting, Athens, GA 30605 USA.
[Reicosky, Donald C.] ARS, USDA, N Cent Soil Conservat Res Lab, Morris, MN 56267 USA.
[Day, Danny M.] Eprida Power & Life Sci Inc, Atlanta, GA 30339 USA.
RP Lee, JW (reprint author), Johns Hopkins Univ, Whiting Sch Engn, 118 Latrobe Hall, Baltimore, MD 21218 USA.
EM JLee349@jhu.edu
RI Lee, James/A-3510-2010
FU DOE [DE-AC05-00OR22725]; US Department of Energy (DOE) Office of
Science; US Presidential Early Career Award for Scientists and Engineers
FX The authors wish to thank Mac Post, Gregg Marland, and Joe Katz for
stimulating discussions. This research was supported in parts by Oak
Ridge National Laboratory Director's Seed Money Project Funds and by the
US Department of Energy (DOE) Office of Science Young Scientist Award
and the US Presidential Early Career Award for Scientists and Engineers
(to J. W. Lee). Oak Ridge National Laboratory is managed by UT-Battelle,
LLC, for DOE under contract No. DE-AC05-00OR22725. We are grateful also
to three anonymous referees for their constructive suggestions to the
manuscript.
NR 52
TC 36
Z9 38
U1 6
U2 77
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 11
BP 1695
EP 1705
DI 10.1039/c004561f
PG 11
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 672QQ
UT WOS:000283602400006
ER
PT J
AU Yang, L
Cheng, Z
Liu, ML
Wilson, L
AF Yang, Lei
Cheng, Zhe
Liu, Meilin
Wilson, Lane
TI New insights into sulfur poisoning behavior of Ni-YSZ anode from
long-term operation of anode-supported SOFCs
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID OXIDE FUEL-CELLS; PROTON CONDUCTORS; TEMPERATURE; CATHODE; GAS; ION; H2S
AB The performance characteristics of high-performance Ni-YSZ (yttria-stabilized zirconia) anode-supported solid oxide fuel cells (SOFCs) are examined under typical fuel cell operating conditions over a period of similar to 3000 h when hydrogen contaminated with different concentrations of H(2)S was used as the fuel. Analyses reveal some new insights into the sulfur poisoning behavior of a Ni-YSZ anode. First, an initial drop in power output upon exposure to H(2)S-contaminated fuels is more dramatic in an anode-supported cell (with small cell resistance) than in electrolyte-supported cell (with large cell resistance), creating an illusion that a high-performance cell appears to be less sulfur tolerant than a low-performance cell. Second, the transition time for this rapid performance drop to cease is much longer for an anode-supported cell (with a thicker anode) than an electrolyte-supported cell (with a thinner anode). Third, the degree of sulfur poisoning (or the cell resistance increase due to sulfur poisoning) diminishes with operating cell current density, suggesting that the water produced at the active sites on anode surface from electro-oxidation of hydrogen (or oxygen ions) may promote the oxidation and removal of adsorbed sulfur. This effect becomes less pronounced at higher concentration of H2S, but still significant at similar to 1 ppm of H(2)S. Fourth, the subsequent slow degradation in performance after the rapid performance drop upon initial exposure to H(2)S can be avoided, indicating that the previously reported slow degradation is unlikely the inherent behavior of a Ni-YSZ anode, but associated with other complications. This further implies that sulfur poisoning may be reversible and the performance drop could be fully recovered when the fuel is switched back to clean hydrogen.
C1 [Yang, Lei; Cheng, Zhe; Liu, Meilin] Georgia Inst Technol, Sch Mat Sci & Engn, Ctr Innovat Fuel Cell & Battery Technol, Atlanta, GA 30332 USA.
[Wilson, Lane] Power Syst Div, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Yang, L (reprint author), Georgia Inst Technol, Sch Mat Sci & Engn, Ctr Innovat Fuel Cell & Battery Technol, Atlanta, GA 30332 USA.
EM meilin.liu@mse.gatech.edu
RI Yang, Lei/D-4967-2011; Liu, Meilin/E-5782-2010
OI Liu, Meilin/0000-0002-6188-2372
FU U.S. Department of Energy [DE-FC26-04NT42219]; Korean Ministry of
Education, Science, and Technology
FX This work was supported by the U.S. Department of Energy SECA Core
Technology Program under award number DE-FC26-04NT42219 and by the WCU
Program at UNIST from the Korean Ministry of Education, Science, and
Technology. We would like to gratefully acknowledge the button cells
received from Subhasish Mukerjee and Joseph M. Keller at Delphi
Corporation, G18 glass sealant from Larry Pederson at the Pacific
Northwest National Laboratory, and useful discussions with Briggs White
and Wayne Surdoval at NETL and Subhasish Mukerjee and Joseph M. Keller
at Delphi.
NR 19
TC 36
Z9 36
U1 0
U2 40
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 11
BP 1804
EP 1809
DI 10.1039/c0ee00386g
PG 6
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 672QQ
UT WOS:000283602400020
ER
PT J
AU McCormick, RL
Westbrook, SR
AF McCormick, Robert L.
Westbrook, Steven R.
TI Storage Stability of Biodiesel and Biodiesel Blends
SO ENERGY & FUELS
LA English
DT Article
AB The objectives of this work were to identify a practical accelerated oxidative stability test method and to define a reasonable, data-based, stability minimum requirement. The biodiesel (B100) samples show a broad distribution of stability oil accelerated tests. with EN 14112 induction time results ranging from less than 1 h to as much as 12 h and ASTM D2274 total insolubles ranging from less than 1 mg/100 mL to nearly 18 mg/100 mL. The accelerated test data indicate that if the B100 stability is above roughly a 3 h induction time, blends prepared from that 13100 appear to be stable oil the induction time and D2274 tests. The D4625 long-term storage results for B100 indicate that most biodiesel samples, regardless of initial induction time, will begin to oxidize immediately during storage. If induction time is near or below the 3 h limit, the B100 will most likely go out of specification for either stability or acid value within 4 months (4 weeks on the D4625 test). Even B100 with induction times longer than 7 h will be out of specification for oxidation stability at only 4 months, although these samples may not have shown a significant increase in acidity or in deposit formation. The 3 h B100 induction time limit appears to be adequate to prevent oxidative degradation for 135 blends in storage for up to 12 months and B20 blends for up to 4 months. The results indicate that 13100 stability is the main factor that affects the stability of 135 and 1320 blends, independent of diesel fuel aromatic Content. sulfur level, Or stability. Synthetic antioxidants were highly effective at preventing acid and insoluble formation during storage.
C1 [McCormick, Robert L.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Westbrook, Steven R.] SW Res Inst San Antonio, San Antonio, TX 78228 USA.
RP McCormick, RL (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM robert.mccormick@nrel.gov
RI McCormick, Robert/B-7928-2011
FU National Renewable Energy Laboratory (NREL); National Biodiesel Board
(NBB); U.S. Department of Energy's Vehicle Technologies Program
FX This study is the result of a collaborative program between the National
Renewable Energy Laboratory (NREL) and the National Biodiesel Board
(NBB), with technical direction from the ASTM Biodiesel Stability Task
Force. The authors acknowledge Financial support from the U.S.
Department of Energy's Vehicle Technologies Program and from NBB,as well
as technical assistance From NBB technical director Steve Howell. The
authors also thank Teresa Alleman, Stu Porter, and Melissa Legg for
their assistance in completing this project.
NR 18
TC 43
Z9 43
U1 1
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
J9 ENERG FUEL
JI Energy Fuels
PD JAN
PY 2010
VL 24
BP 690
EP 698
DI 10.1021/ef900878u
PG 9
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 555MI
UT WOS:000274514500088
ER
PT S
AU Abraham, DP
AF Abraham, Daniel P.
BE Dhar, NK
Wijewarnasuriya, PS
Dutta, AK
TI Diagnostic Studies on Lithium-Ion Cells at Argonne National Laboratory -
An Overview
SO ENERGY HARVESTING AND STORAGE: MATERIALS, DEVICES, AND APPLICATIONS
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Energy Harvesting and Storage - Materials, Devices, and
Applications
CY APR 05-06, 2010
CL Orlando, FL
SP SPIE
DE lithium-ion; aging; capacity; impedance; microscopy; spectroscopy
AB High-power and high-energy lithium-ion cells are being studied at Argonne National Laboratory (Argonne) as part of the U. S. Department of Energy's FreedomCar and Vehicle Technologies (FCVT) program. Cells ranging in capacity from 1 mAh to 1Ah, and containing a variety of electrodes and electrolytes, are examined to determine suitable material combinations that will meet and exceed the FCVT performance, cost, and safety targets. In this article, accelerated aging of 18650-type cells, and characterization of components harvested from these cells, is described. Several techniques that include electrochemical measurements, analytical electron microscopy, and x-ray spectroscopy were used to study the various cell components. Data from these studies were used to identify the most likely contributors to property degradation and determine mechanisms responsible for cell capacity fade and impedance rise.
C1 Argonne Natl Lab, Argonne, IL 60439 USA.
RP Abraham, DP (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 6
TC 0
Z9 0
U1 1
U2 10
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8147-4
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7683
AR 76830A
DI 10.1117/12.851292
PG 10
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BSS20
UT WOS:000285621700003
ER
PT S
AU Doeff, MM
Conry, T
Wilcox, J
AF Doeff, Marca M.
Conry, Thomas
Wilcox, James
BE Dhar, NK
Wijewarnasuriya, PS
Dutta, AK
TI Improved layered mixed transition metal oxides for Li-ion batteries
SO ENERGY HARVESTING AND STORAGE: MATERIALS, DEVICES, AND APPLICATIONS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Energy Harvesting and Storage - Materials, Devices, and
Applications
CY APR 05-06, 2010
CL Orlando, FL
SP SPIE
DE Cathodes; metal oxides; Li ion batteries; Al-substitution;
Ti-substitution
ID LITHIUM INSERTION MATERIAL; SOLID-STATE CHEMISTRY;
ELECTROCHEMICAL-BEHAVIOR; CATHODE MATERIAL; HIGH-POWER;
LICO1/3NI1/3MN1/3O2; AL; LI(NI1/3CO1/3MN1/3)O-2; SUBSTITUTION; CAPACITY
AB Recent work in our laboratory has been directed towards development of mixed layered transition metal oxides with general composition Li[Ni, Co, M, Mn]O-2 (M=Al, Ti) for Li ion battery cathodes. Compounds such as Li[Ni1/3Co1/3Mn1/3]O-2 (often called NMCs) are currently being commercialized for use in consumer electronic batteries, but the high cobalt content makes them too expensive for vehicular applications such as electric vehicles (EV), plug-in hybrid electric vehicles (PHEVs), or hybrid electric vehicles (HEVs). To reduce materials costs, we have explored partial or full substitution of Co with Al, Ti, and Fe. Fe substitution generally decreases capacity and results in poorer rate and cycling behavior. Interestingly, low levels of substitution with Al or Ti improve aspects of performance with minimal impact on energy densities, for some formulations. High levels of Al substitution compromise specific capacity, however, so further improvements require that the Ni and Mn content be increased and Co correspondingly decreased. Low levels of Al or Ti substitution can then be used offset negative effects induced by the higher Ni content. The structural and electrochemical characterization of substituted NMCs is presented in this paper.
C1 [Doeff, Marca M.; Conry, Thomas; Wilcox, James] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Doeff, MM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM mmdoeff@lbl.gov
RI Doeff, Marca/G-6722-2013
OI Doeff, Marca/0000-0002-2148-8047
NR 21
TC 0
Z9 0
U1 2
U2 19
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8147-4
J9 PROC SPIE
PY 2010
VL 7683
AR 768309
DI 10.1117/12.851228
PG 9
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BSS20
UT WOS:000285621700002
ER
PT S
AU Nagasubramanian, G
AF Nagasubramanian, G.
BE Dhar, NK
Wijewarnasuriya, PS
Dutta, AK
TI In-house Fabrication and Testing Capabilities for Li and Li-ion 18650
Cells
SO ENERGY HARVESTING AND STORAGE: MATERIALS, DEVICES, AND APPLICATIONS
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Energy Harvesting and Storage - Materials, Devices, and
Applications
CY APR 05-06, 2010
CL Orlando, FL
SP SPIE
DE Li-ion cells; capacity; electrolyte; impedance; cathode; anode
AB For over 10 years Sandia Labs have been involved in an US DOE-funded program aimed at developing electric vehicle batteries for transportation applications. Currently this program is called "Advanced Battery Research (ABR)." In this effort we were preparing 18650 cells with electrodes supplied by or purchased from private companies for thermal abuse and electrical characterization studies. Lately, we are coating our own electrodes, building cells and evaluating performance. This paper describes our extensive in-house facilities for slurry making, electrode coating, cell winding etc. In addition, facilities for electrical testing and thermal abuse will be described. This facility allows us to readjust our focus quickly to the changing demands of the still evolving ABR program. Additionally, we continue to make cells for our internal use. We made several 18650 cells both primary (Li-CF(x)) and secondary (Li-ion) and evaluated performance. For example Li-CF(x) cells gave similar to 2.9Ahr capacity at room temperature. Our high voltage Li-ion cells consisting of carbon anode and cathode based on LiNi (0.4)Mn (0.3)Co (0.3)O(2) in organic electrolytes exhibited reproducible behavior and gave capacity on the order of 1Ahr. Performance of Li-ion cells at different temperatures and thermal abuse characteristics will be presented.
C1 Sandia Natl Labs, Adv Power Sources R&D Dept 2546, Albuquerque, NM 87123 USA.
RP Nagasubramanian, G (reprint author), Sandia Natl Labs, Adv Power Sources R&D Dept 2546, 1515 Eubank SE, Albuquerque, NM 87123 USA.
NR 1
TC 0
Z9 0
U1 1
U2 15
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8147-4
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7683
AR 76830C
DI 10.1117/12.849324
PG 7
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BSS20
UT WOS:000285621700005
ER
PT S
AU Sullivan, JP
Huang, J
Shaw, MJ
Subramanian, A
Hudak, N
Zhan, Y
Lou, J
AF Sullivan, J. P.
Huang, J.
Shaw, M. J.
Subramanian, A.
Hudak, N.
Zhan, Y.
Lou, J.
BE Dhar, NK
Wijewarnasuriya, PS
Dutta, AK
TI Understanding Li-ion battery processes at the atomic-to nano-scale
SO ENERGY HARVESTING AND STORAGE: MATERIALS, DEVICES, AND APPLICATIONS
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Energy Harvesting and Storage - Materials, Devices, and
Applications
CY APR 05-06, 2010
CL Orlando, FL
SP SPIE
DE Li-ion battery; energy storage; battery characterization; battery
diagnostics; MEMS; TEM
ID ELECTRON-MICROSCOPY; LITHIUM BATTERIES; GROWTH; NANOWIRES; SILICON;
CELLS
AB Reducing battery materials to nano-scale dimensions may improve battery performance while maintaining the use of low-cost materials. However, we need better characterization tools with atomic to nano-scale resolution in order to understand degradation mechanisms and the structural and mechanical changes that occur in these new materials during battery cycling. To meet this need, we have developed a micro-electromechanical systems (MEMS)-based platform for performing electrochemical measurements using volatile electrolytes inside a transmission electron microscope (TEM). This platform uses flip-chip assembly with special alignment features and multiple buried electrode configurations. In addition to this platform, we have developed an unsealed platform that permits in situ TEM electrochemistry using ionic liquid electrolytes. As a test of these platform concepts, we have assembled MnO(2) nanowires on to the platform using dielectrophoresis and have examined their electrical and structural changes as a function of lithiation. These results reveal a large irreversible drop in electronic conductance and the creation of a high degree of lattice disorder following lithiation of the nanowires. From these initial results, we conclude that the future full development of in situ TEM characterization tools will enable important mechanistic understanding of Li-ion battery materials.
C1 [Sullivan, J. P.; Huang, J.; Shaw, M. J.; Subramanian, A.; Hudak, N.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Sullivan, JP (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 26
TC 0
Z9 0
U1 2
U2 21
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8147-4
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7683
AR 76830B
DI 10.1117/12.849530
PG 11
WC Energy & Fuels; Engineering, Electrical & Electronic; Optics
SC Energy & Fuels; Engineering; Optics
GA BSS20
UT WOS:000285621700004
ER
PT J
AU Sioshansi, R
Denholm, P
AF Sioshansi, Ramteen
Denholm, Paul
TI The Value of Plug-In Hybrid Electric Vehicles as Grid Resources
SO ENERGY JOURNAL
LA English
DT Article
AB Plug-in hybrid electric vehicles (PHEVs.) can become valuable resources for an electric power system by providing vehicle to grid (V2G) services, such as energy storage and ancillary services. We use a unit commitment model of the Texas power system to simulate system operations with different-sized PHEV fleets that do and do not provide V2G services, to estimate the value of those services. We demonstrate that a PHEV fleet can provide benefits to the system, mainly through the provision of ancillary services, reducing the need to reserve conventional generator capacity. Moreover, our analysis shows that PHEV owners are made better off by providing V2G services and we demonstrate that these benefits can reduce the time it takes to recover the higher upfront capital cost of a PHEV when compared to other vehicle types.
C1 [Sioshansi, Ramteen] Ohio State Univ, Integrated Syst Engn Dept, Columbus, OH 43210 USA.
[Denholm, Paul] Natl Renewable Energy Lab, Golden, CO USA.
RP Sioshansi, R (reprint author), Ohio State Univ, Integrated Syst Engn Dept, Columbus, OH 43210 USA.
EM sioshansi.1@osu.edu; paul.denholm@nrel.gov
FU U.S. Department of Energy [DE-AC36-99G010337]
FX The authors would like to thank Tony Markel, Armin Sorooshian, and two
anonymous referees for helpful suggestions regarding PHEV modeling. The
authors would also like to thank Tony Markel for providing PHEV data and
Tony Grasso for ERCOT market and system data. This work was supported by
the U.S. Department of Energy under Contract No. DE-AC36-99G010337 with
the National Renewable Energy Laboratory. Any opinions and conclusions
expressed in this paper are those of the authors and do not necessarily
represent those of the Department of Energy or the National Renewable
Energy Laboratory.
NR 10
TC 64
Z9 64
U1 1
U2 14
PU INT ASSOC ENERGY ECONOMICS
PI CLEVELAND
PA 28790 CHAGRIN BLVD, STE 210, CLEVELAND, OH 44122 USA
SN 0195-6574
J9 ENERG J
JI Energy J.
PY 2010
VL 31
IS 3
BP 1
EP 23
PG 23
WC Economics; Energy & Fuels; Environmental Studies
SC Business & Economics; Energy & Fuels; Environmental Sciences & Ecology
GA 619HW
UT WOS:000279421600001
ER
PT J
AU Baker, AB
AF Baker, Arnold B.
TI International Economic Interdependency and U.S. National Energy Policy
SO ENERGY JOURNAL
LA English
DT Article
AB This paper briefly reviews some key aspects of U.S. energy policy history and policy-making complexity, considers the issues and pressures that growing international economic interdependency may bring, and suggests some approaches and tools for improvement.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Baker, AB (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM abbaker@sandia.gov
NR 31
TC 0
Z9 0
U1 0
U2 4
PU INT ASSOC ENERGY ECONOMICS
PI CLEVELAND
PA 28790 CHAGRIN BLVD, STE 210, CLEVELAND, OH 44122 USA
SN 0195-6574
J9 ENERG J
JI Energy J.
PY 2010
VL 31
IS 4
BP 57
EP 78
PG 22
WC Economics; Energy & Fuels; Environmental Studies
SC Business & Economics; Energy & Fuels; Environmental Sciences & Ecology
GA 655NV
UT WOS:000282257600003
ER
PT J
AU Kyle, P
Clarke, L
Rong, F
Smith, SJ
AF Kyle, Page
Clarke, Leon
Rong, Fang
Smith, Steven J.
TI Climate Policy and the Long-Term Evolution of the US Buildings Sector
SO ENERGY JOURNAL
LA English
DT Article
ID STABILIZATION; TECHNOLOGIES; CO2
AB Buildings are the dominant driver of daily and seasonal electric load cycles, and account for 40 percent of U.S. final energy use. They account for roughly 10 percent of direct U.S. CO(2) emissions and roughly 40 percent once indirect emissions from electricity generation are included. This paper explores the possible evolution of this sector over the coming century, its potential role in climate action and response to climate policies, and the potential benefits of advances in building technologies for addressing climate change. The paper presents a set of scenarios based on a detailed, service-based model of the U.S. buildings sector that is embedded within a long-term, global, integrated assessment model, MiniCAM. Eight scenarios are created in total, combining two sets of assumptions regarding U.S. building service demand growth, two sets of assumptions regarding the improvements in building energy technologies, and two assumptions regarding long-term U.S. climate action - a no-climate-action assumption and an assumption of market-based policies to reduce US. CO2 emissions consistent with a 450 ppmv global target. Through these eight scenarios, the paper comments on the implications of continued growth in building service demands, the ability of efficiency measures to reduce emissions, and the strong link between decarbonization of electricity generation and building sector emissions.
C1 [Kyle, Page; Clarke, Leon; Smith, Steven J.] Pacific NW Natl Lab, Joint Global Change Res Inst, College Pk, MD 20740 USA.
[Rong, Fang] Tsinghua Univ, Sch Publ Policy & Management, Beijing 100084, Peoples R China.
RP Kyle, P (reprint author), Pacific NW Natl Lab, Joint Global Change Res Inst, 5825 Univ Res Court, College Pk, MD 20740 USA.
EM pkyle@pnl.gov
FU U.S. Department of Energy's Office of Energy Efficiency and Renewable
Energy; Electric Power Research Institute; Global Energy Technology
Strategy Program
FX The authors are indebted to the U.S. Department of Energy's Office of
Energy Efficiency and Renewable Energy for support of the research of
this paper. The authors are also indebted to the U.S. Department of
Energy's Office of Science, the Electric Power Research Institute, and
other sponsors of the Global Energy Technology Strategy Program (GTSP;
http://www.pnl.gov/gtsp/index. stm) for their support of the MiniCAM
integrated assessment modeling framework. The authors would like to
thank David Belzer and David Winiarski from Pacific Northwest National
Laboratory for their helpful comments and advice, and Will Gans from the
University of Maryland for assistance in developing the MiniCAM
buildings module.
NR 39
TC 7
Z9 7
U1 0
U2 8
PU INT ASSOC ENERGY ECONOMICS
PI CLEVELAND
PA 28790 CHAGRIN BLVD, STE 210, CLEVELAND, OH 44122 USA
SN 0195-6574
J9 ENERG J
JI Energy J.
PY 2010
VL 31
IS 2
BP 145
EP 172
PG 28
WC Economics; Energy & Fuels; Environmental Studies
SC Business & Economics; Energy & Fuels; Environmental Sciences & Ecology
GA 578GP
UT WOS:000276281900006
ER
PT J
AU Andress, D
Nguyen, TD
Das, S
AF Andress, David
Nguyen, T. Dean
Das, Sujit
TI Low-carbon fuel standard-Status and analytic issues
SO ENERGY POLICY
LA English
DT Article
DE Low-carbon fuel standard; Transportation greenhouse gases; California
climate regulation
AB In the United States, the federal government and several state governments are formulating or implementing policies aimed at reducing greenhouse gases emissions. In April 2009, the State of California adopted the Low-Carbon Fuel Standard (LCFS), a groundbreaking policy for reducing greenhouse gas emissions in the transportation sector. This paper reviews the major elements of a LCFS, focusing on California's implementation, and discusses the key open issues of a LCFS. This paper also summarizes the major elements of the cap-and-trade and carbon tax concepts, the two principal alternative approaches to regulating greenhouse gases emissions. Analytical issues associated with the LCFS are highlighted, including land-use change effects associated with certain biofuels. If electricity becomes a significant transportation fuel, a number of regulatory issues will need to be addressed. Beyond California, the LCFS approach appears to be favored by several other US states and the European Union. A Hydrogen-Success scenario example illustrates the key features of a national LCFS following California's model. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Andress, David] David Andress & Associates, Kensington, MD USA.
[Nguyen, T. Dean] US DOE, Washington, DC USA.
[Das, Sujit] Oak Ridge Natl Lab, Knoxville, TN USA.
RP Andress, D (reprint author), David Andress & Associates, Kensington, MD USA.
EM davidandress@msn.com
NR 8
TC 14
Z9 15
U1 1
U2 7
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0301-4215
J9 ENERG POLICY
JI Energy Policy
PD JAN
PY 2010
VL 38
IS 1
BP 580
EP 591
DI 10.1016/j.enpol.2009.10.010
PG 12
WC Energy & Fuels; Environmental Sciences; Environmental Studies
SC Energy & Fuels; Environmental Sciences & Ecology
GA 536ZE
UT WOS:000273081700057
ER
PT B
AU Pascual, C
Elkind, J
AF Pascual, Carlos
Elkind, Jonathan
BE Pascual, C
Elkind, J
TI ENERGY SECURITY ECONOMICS, POLITICS, STRATEGIES, AND IMPLICATIONS
Introduction
SO ENERGY SECURITY: ECONOMICS, POLITICS, STRATEGIES, AND IMPLICATIONS
LA English
DT Editorial Material; Book Chapter
C1 [Pascual, Carlos] US Dept State, Washington, DC 20520 USA.
[Pascual, Carlos; Elkind, Jonathan] Brookings Inst, Washington, DC 20036 USA.
[Elkind, Jonathan] US DOE, Washington, DC 20585 USA.
RP Pascual, C (reprint author), US Dept State, Washington, DC 20520 USA.
NR 0
TC 1
Z9 1
U1 0
U2 1
PU BROOKINGS INST
PI WASHINGTON
PA 1775 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
BN 978-0-8157-6919-4
PY 2010
BP 1
EP 6
PG 6
WC Energy & Fuels; Environmental Sciences; Environmental Studies;
International Relations
SC Energy & Fuels; Environmental Sciences & Ecology; International
Relations
GA BZL41
UT WOS:000301920800002
ER
PT B
AU Elkind, J
AF Elkind, Jonathan
BE Pascual, C
Elkind, J
TI Energy Security Call for a Broader Agenda
SO ENERGY SECURITY: ECONOMICS, POLITICS, STRATEGIES, AND IMPLICATIONS
LA English
DT Article; Book Chapter
C1 [Elkind, Jonathan] US DOE, Washington, DC 20585 USA.
[Elkind, Jonathan] Brookings Inst, Washington, DC 20036 USA.
RP Elkind, J (reprint author), US DOE, Washington, DC 20585 USA.
NR 24
TC 5
Z9 5
U1 0
U2 1
PU BROOKINGS INST
PI WASHINGTON
PA 1775 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
BN 978-0-8157-6919-4
PY 2010
BP 119
EP 148
PG 30
WC Energy & Fuels; Environmental Sciences; Environmental Studies;
International Relations
SC Energy & Fuels; Environmental Sciences & Ecology; International
Relations
GA BZL41
UT WOS:000301920800008
ER
PT B
AU Hartvigsen, J
Elangovan, S
Frost, L
Stoots, C
O'Brien, J
Herring, JS
Sohal, M
Hawkes, G
AF Hartvigsen, Joseph
Elangovan, S.
Frost, Lyman
Stoots, Carl
O'Brien, James
Herring, J. S.
Sohal, Manohar
Hawkes, Grant
BE Neelameggham, NR
Reddy, RG
Belt, CK
Hagni, AM
Das, S
TI Synthetic Fuel Production Utilizing CO2 Recycling as an Alternative to
Sequestration
SO ENERGY TECHNOLOGY 2010: CONSERVATION, GREENHOUSE GAS REDUCTION AND
MANAGEMENT, ALTERNATIVE ENERGY SOURCES
LA English
DT Proceedings Paper
CT Conference on Energy Technology 2010 / TMS 2010 Annual Meeting and
Exhibition
CY FEB 14-18, 2010
CL Seattle, WA
SP Minerals Mes & Mat Soc, Light Met Div
DE carbon dioxide; high temperature electrolysis; Fischer-Tropsch
synthesis; greenhouse gas reduction; climate change
AB Pressing environmental and energy security concerns have brought much needed attention to economic production of hydrogen as the secondary energy carrier for non-electrical markets as well as to meet increasing demand for crude upgrading and desulfurization. While steam reforming of natural gas is currently the dominant method of hydrogen production, it is depleting a valuable fossil fuel while emitting green house gases. Thus, in the long run, efficient, environmentally friendly, and economic means of hydrogen production using nuclear and renewable energy needs to be developed. High temperature electrolysis using solid oxide electrolyte cells is an exceptionally efficient means of generation of high purity hydrogen. It is also capable of directly converting steam and CO2 into synthesis gas. This co-electrolysis process enables conversion of CO2 recovered from concentrated industrial sources into a feedstock for synthetic fuels production. Use of CO2 provides a means of storing hydrogen in a concentrated and convenient form a hydrocarbon. This is also an effective storage medium for intermittent renewable energy sources such as wind and solar.
Ceramatec, Inc and the Idaho National Laboratory are applying solid oxide fuel cell technology to the production of synthesis gas by high temperature co-electrolysis of steam and carbon dioxide. This technology utilizes solid oxide fuel cell stacks to electrochemically remove oxygen from steam and CO2, leaving a clean stream of hydrogen and carbon monoxide suitable for fuel synthesis. By varying the relative concentrations of carbon dioxide and steam, the hydrogen to carbon monoxide product ratio can be controlled as required by the desired type of synthetic fuel being produced from the syngas. The resultant synthesis gas has been used as the feedstock to produce synthetic methane and Fischer Tropsch liquid fuels.
Alkaline and proton exchange membrane electrolysis cells typically operate below 100 degrees C, while solid oxide electrolysis cells operates in the 750-850 degrees C range. This higher temperature improves the efficiency significantly. Practically, it translates into a lower cell operating voltage, 1.1-1.4V for high temperature electrolysis vs. similar to 1.8V for water electrolysis. Hydrogen production is stoichiometric with current in all types of electrolyzers.
Carbon dioxide is a valuable resource as a feedstock for energy storage as a hydrocarbon. There is a vast amount of renewable energy that cannot be effectively utilized as grid electricity, but which could be used to convert CO2 to hydrocarbons, offering a solution to the even more difficult (than supplying grid power) challenge of production of sustainable, domestic transportation fuels. Conventional electrolysis and chemical processes could be deployed to accomplish this conversion. However, high temperature co-electrolysis of CO2 and steam to produce synthesis gas using solid oxide fuel cell technology has the potential of improving the efficiency by nearly 50%. A domestic synfuel industry will enable a much larger reliance on intermittent renewable energy than can be accommodated by conventional electric demand profiles while increasing our energy security.
C1 [Hartvigsen, Joseph; Elangovan, S.; Frost, Lyman] Ceramatec Inc, 2425 South 900 West, Salt Lake City, UT 84119 USA.
[Stoots, Carl; O'Brien, James; Herring, J. S.; Sohal, Manohar; Hawkes, Grant] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Hartvigsen, J (reprint author), Ceramatec Inc, 2425 South 900 West, Salt Lake City, UT 84119 USA.
OI Hawkes, Grant/0000-0003-3496-8100
FU Idaho National Laboratory; Laboratory Directed Research and Development
program; U.S. Department of Energy, Office of Nuclear Energy, Nuclear
Hydrogen Initiative Program; Office of Naval Research
FX This work was supported by the Idaho National Laboratory, Laboratory
Directed Research and Development program, the U.S. Department of
Energy, Office of Nuclear Energy, Nuclear Hydrogen Initiative Program,
and the Office of Naval Research.
NR 4
TC 1
Z9 1
U1 0
U2 0
PU MINERALS, METALS & MATERIALS SOC
PI WARRENDALE
PA 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA
BN 978-0-87339-749-0
PY 2010
BP 15
EP 26
PG 12
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Metallurgy &
Metallurgical Engineering
SC Science & Technology - Other Topics; Energy & Fuels; Metallurgy &
Metallurgical Engineering
GA BG8JE
UT WOS:000392350500002
ER
PT B
AU Miller, JE
Diver, RB
Siegel, NP
Coker, EN
Ambrosini, A
Dedrick, DE
Allendorf, MD
McDaniel, AH
Kellogg, GL
Hogan, RE
Chen, KS
Stechel, EB
AF Miller, James E.
Diver, Richard B.
Siegel, Nathan P.
Coker, Eric N.
Ambrosini, Andrea
Dedrick, Daniel E.
Allendorf, Mark D.
McDaniel, Anthony H.
Kellogg, Gary L.
Hogan, Roy E.
Chen, Ken S.
Stechel, Ellen B.
BE Neelameggham, NR
Reddy, RG
Belt, CK
Hagni, AM
Das, S
TI SUNSHINE TO PETROL: A METAL OXIDE-BASED THERMOCHEMICAL ROUTE TO SOLAR
FUELS
SO ENERGY TECHNOLOGY 2010: CONSERVATION, GREENHOUSE GAS REDUCTION AND
MANAGEMENT, ALTERNATIVE ENERGY SOURCES
LA English
DT Proceedings Paper
CT Conference on Energy Technology 2010 / TMS 2010 Annual Meeting and
Exhibition
CY FEB 14-18, 2010
CL Seattle, WA
SP Minerals Mes & Mat Soc, Light Met Div
DE Metal oxide; Thermochemical cycles; Fuels
ID ENERGY; CYCLES; CO2
AB Converting carbon dioxide and water to hydrocarbons is an attractive option for storing solar energy and, coupled with appropriate CO2 capture technology, for recycling carbon and impacting atmospheric CO2 concentrations. For any process, high solar-to-fuel efficiency is necessary for large scale viability and favorable economics. Thermochemical approaches for solar-to-fuel conversion are potentially highly efficient as they avoid the inherent limitations of photosynthesis and also sidestep the solar-to-electric conversion necessary to drive electrolytic reactions. Solar-driven two-step metal-oxide-based thermochemical cycles for producing the components of syngas, CO and H-2, from CO2 and H2O are the basis of the "Sunshine to Petrol" project. Multi-cycle production of both H-2 and CO has been demonstrated over several iron- and cerium-based compositions fabricated into monolithic pieces both in the laboratory and at the National Solar Thermal Test Facility. These compositions are being developed for deployment in a unique and continuous solar-driven reactor prototype, the counter-rotating-ring receiver reactor recuperator or CR5.
C1 [Miller, James E.; Diver, Richard B.; Siegel, Nathan P.; Coker, Eric N.; Ambrosini, Andrea; Kellogg, Gary L.; Hogan, Roy E.; Chen, Ken S.; Stechel, Ellen B.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
[Dedrick, Daniel E.; Allendorf, Mark D.; McDaniel, Anthony H.] Sandia Natl Labs, Livermore, CA 94551 USA.
RP Miller, JE (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
FU Laboratory Directed Research and Development program at Sandia National
Laboratories; United States Department of Energy's National Nuclear
Security Administration [DE-AC04-94AL85000]
FX This work was supported by the Laboratory Directed Research and
Development program at Sandia National Laboratories, in the form of a
Grand Challenge project entitled "Reimagining Liquid Transportation
Fuels: Sunshine to Petrol." Sandia is a multiprogram laboratory operated
by Sandia Corporation, a Lockheed Martin Company, for the United States
Department of Energy's National Nuclear Security Administration under
Contract DE-AC04-94AL85000.
NR 30
TC 2
Z9 2
U1 2
U2 2
PU MINERALS, METALS & MATERIALS SOC
PI WARRENDALE
PA 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA
BN 978-0-87339-749-0
PY 2010
BP 27
EP 38
PG 12
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Metallurgy &
Metallurgical Engineering
SC Science & Technology - Other Topics; Energy & Fuels; Metallurgy &
Metallurgical Engineering
GA BG8JE
UT WOS:000392350500003
ER
PT B
AU Clark, JA
Summers, C
Oryshchyn, D
Gerdemann, S
Ochs, T
Carney, C
AF Clark, John A., III
Summers, Cathy
Oryshchyn, Danylo
Gerdemann, Stephen
Ochs, Thomas
Carney, Casey
BE Neelameggham, NR
Reddy, RG
Belt, CK
Hagni, AM
Das, S
TI Low Cost Options for Gas Compositional Analysis of Product Streams of
Oxy-Combustion Processes with Carbon Capture (an Overview)
SO ENERGY TECHNOLOGY 2010: CONSERVATION, GREENHOUSE GAS REDUCTION AND
MANAGEMENT, ALTERNATIVE ENERGY SOURCES
LA English
DT Proceedings Paper
CT Conference on Energy Technology 2010 / TMS 2010 Annual Meeting and
Exhibition
CY FEB 14-18, 2010
CL Seattle, WA
SP Minerals Mes & Mat Soc, Light Met Div
DE Oxy-combustion; gas analysis equipment; carbon capture; low cost; CEM
AB Limited analysis of combustion gas streams where carbon capture is not of interest is done mainly to ascertain operation parameters. Stringent regulations on acid gases and particulates promote careful flue gas analysis. Unregulated components are typically not analyzed. Typically not more than four points (two in the boiler, and one each in the flue and the stack) are sampled. A successful oxy-fuel process with carbon capture and compression is anticipated to require as many as 12 sample points with analysis for water, nitrogen, oxygen, argon, NOx, SOx, and carbon monoxide. Carbon dioxide captured for beverages produces a high value product and the cost associated with analysis is warranted. However, carbon capture for disposal must keep all costs to a minimum. This paper will compare alternative approaches for cost-effective sampling and analysis of the carbon dioxide product streams from oxy-fuel combustion, through all stages of production through compression and pipeline/vessel delivery.
C1 [Clark, John A., III; Summers, Cathy; Oryshchyn, Danylo; Gerdemann, Stephen; Ochs, Thomas; Carney, Casey] Natl Energy Technol Lab, 1450 Queen Ave SW, Albany, OR 97321 USA.
RP Clark, JA (reprint author), Natl Energy Technol Lab, 1450 Queen Ave SW, Albany, OR 97321 USA.
NR 18
TC 0
Z9 0
U1 0
U2 0
PU MINERALS, METALS & MATERIALS SOC
PI WARRENDALE
PA 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA
BN 978-0-87339-749-0
PY 2010
BP 159
EP 170
PG 12
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Metallurgy &
Metallurgical Engineering
SC Science & Technology - Other Topics; Energy & Fuels; Metallurgy &
Metallurgical Engineering
GA BG8JE
UT WOS:000392350500016
ER
PT B
AU Salazar-Villalpando, MD
Reyes, B
Cugini, A
AF Salazar-Villalpando, Maria D.
Reyes, Bryan
Cugini, Anthony
BE Neelameggham, NR
Reddy, RG
Belt, CK
Hagni, AM
Das, S
TI Voltammetric measurements for CO2 reduction under ambient conditions
SO ENERGY TECHNOLOGY 2010: CONSERVATION, GREENHOUSE GAS REDUCTION AND
MANAGEMENT, ALTERNATIVE ENERGY SOURCES
LA English
DT Proceedings Paper
CT Conference on Energy Technology 2010 / TMS 2010 Annual Meeting and
Exhibition
CY FEB 14-18, 2010
CL Seattle, WA
SP Minerals Mes & Mat Soc, Light Met Div
DE CO2 reduction; Voltammetric measurements; NaHCO3; KHCO3
ID SITU ELECTRODEPOSITED COPPER; ELECTROCHEMICAL REDUCTION; CARBON-DIOXIDE;
3-PHASE INTERFACE; CU ELECTRODES; ETHYLENE; METHANE; HYDROCARBONS;
ADSORPTION; PRESSURE
AB The electrochemical reduction of CO2 was performed in a laboratory-made, divided H-type cell. A copper electrode was used as the cathode. An Aldrich Nafion 117-type ion exchange membrane (0.18mm thickness) was used as the diaphragm. NaHCO3 and KHCO3 were studied as the catholytes. Hydrogen evolution from water reduction and products from CO2 electrochemical conversion were recorded. Higher CO2 reduction enhancement was observed by KHCO3 as compared to NaHCO3. The main conclusion of this work is that in fact CO2 can be electrochemically reduced with copper electrodes.
C1 [Salazar-Villalpando, Maria D.; Reyes, Bryan; Cugini, Anthony] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Salazar-Villalpando, MD (reprint author), US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
EM maria.salazar@netl.doe.gov
NR 20
TC 0
Z9 0
U1 0
U2 0
PU MINERALS, METALS & MATERIALS SOC
PI WARRENDALE
PA 184 THORN HILL RD, WARRENDALE, PA 15086-7514 USA
BN 978-0-87339-749-0
PY 2010
BP 195
EP 204
PG 10
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels; Metallurgy &
Metallurgical Engineering
SC Science & Technology - Other Topics; Energy & Fuels; Metallurgy &
Metallurgical Engineering
GA BG8JE
UT WOS:000392350500020
ER
PT J
AU Fata, SN
Gray, LJ
AF Fata, S. Nintcheu
Gray, L. J.
TI On the implementation of 3D Galerkin boundary integral equations
SO ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
LA English
DT Article
DE Galerkin approximation; Sparse preconditioner; Singular integrals;
Hypersingular integrals; Boundary element method; Triangular boundary;
Potential theory; Incomplete LU; Iterative methods
ID BEM; PRECONDITIONERS; ELEMENTS; SYSTEMS
AB In this article, a reverse contribution technique is proposed to accelerate the construction of the dense influence matrices associated with a Galerkin approximation of hypersingular boundary integral equations of mixed-type in potential theory. In addition, a general-purpose sparse preconditioner for boundary element methods has also been developed to successfully deal with ill-conditioned linear systems arising from the discretization of mixed boundary-value problems on non-smooth surfaces. The proposed preconditioner, which originates from the precorrected-FFT method, is sparse, easy to generate and apply in a Krylov subspace iterative solution of discretized boundary integral equations. Moreover, an approximate inverse of the preconditioner is implicitly built by employing an incomplete LU factorization. Numerical experiments involving mixed boundary-value problems for the Laplace equation are included to illustrate the performance and validity of the proposed techniques. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Fata, S. Nintcheu; Gray, L. J.] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA.
RP Fata, SN (reprint author), Oak Ridge Natl Lab, Div Math & Comp Sci, POB 2008,MS 6367, Oak Ridge, TN 37831 USA.
EM nintcheufats@ornl.gov
FU US Government [DE-AC05-00OR22725]
FX The submitted manuscript has been authored by a contractor of the US
Government under Contract no. DE-AC05-00OR22725. Accordingly, the US
Government retains a non-exclusive, royaltyfree license to publish or
reproduce the published form of this contribution, or allow others to do
so, for US Government purposes.
NR 24
TC 3
Z9 3
U1 1
U2 1
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0955-7997
J9 ENG ANAL BOUND ELEM
JI Eng. Anal. Bound. Elem.
PD JAN
PY 2010
VL 34
IS 1
BP 60
EP 65
DI 10.1016/j.enganabound.2009.06.010
PG 6
WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary
Applications
SC Engineering; Mathematics
GA 520ES
UT WOS:000271823700009
ER
PT J
AU Rammohan, RR
Farfan, BG
Su, MF
El-Kady, I
Taha, MMR
AF Rammohan, R. R.
Farfan, B. G.
Su, M. F.
El-Kady, I.
Taha, M. M. Reda
TI Hybrid genetic optimization for design of photonic crystal emitters
SO ENGINEERING OPTIMIZATION
LA English
DT Article
DE genetic algorithm; heuristic search; hybrid optimization; photonic
crystals; emitter design
ID DIFFRACTION; ALGORITHM; EMISSION; GRATINGS
AB A unique hybrid-optimization technique is proposed, based on genetic algorithms (GA) and gradient descent (GD) methods, for the smart design of photonic crystal (PhC) emitters. The photonic simulation is described and the granularity of photonic crystal dimensions is considered. An innovative sliding-window method for performing local heuristic search is demonstrated. Finally, the application of the proposed method on two case studies for the design of a multi-pixel photonic crystal emitter and the design of thermal emitter in thermal photovoltaic is demonstrated. Discussion in the report includes the ability of the optimal PhC structures designed using the proposed method, to produce unprecedented high emission efficiencies of 54.5% in a significantly long wavelength region and 84.9% at significantly short wavelength region.
C1 [Taha, M. M. Reda] Univ New Mexico, Dept Civil Engn, Albuquerque, NM 87131 USA.
[Rammohan, R. R.] Univ New Mexico, Dept Comp Sci, Albuquerque, NM 87131 USA.
[Farfan, B. G.; Su, M. F.; El-Kady, I.] Univ New Mexico, Dept Elect & Comp Engn, Albuquerque, NM 87131 USA.
[El-Kady, I.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Taha, MMR (reprint author), Univ New Mexico, Dept Civil Engn, Albuquerque, NM 87131 USA.
EM mrtaha@unm.edu
RI El-Kady, Ihab/D-2886-2013
OI El-Kady, Ihab/0000-0001-7417-9814
FU Sandia National Laboratories (SNL); Sandia Corporation; Lockheed Martin
Company; US Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]; US Department of Energy, Office of
Science, Office of Basic Energy Sciences [W-31-109-Eng-38]
FX This work is supported by Sandia National Laboratories (SNL), a
multi-program laboratory operated by Sandia Corporation, a Lockheed
Martin Company, for the US Department of Energy's National Nuclear
Security Administration under contract DE-AC04-94AL85000. Use of the
Center for Nanoscale Materials was supported by the US Department of
Energy, Office of Science, Office of Basic Energy Sciences, under
Contract No. W-31-109-Eng-38. The authors greatly appreciate this
support. Finally, the authors would like to extend their thanks to Dr.
Jason Verley for his insights and technical discussions and his early
review of the manuscript.
NR 27
TC 1
Z9 1
U1 0
U2 4
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
SN 0305-215X
EI 1029-0273
J9 ENG OPTIMIZ
JI Eng. Optimiz.
PY 2010
VL 42
IS 9
BP 791
EP 809
AR PII 920975548
DI 10.1080/03052150903426868
PG 19
WC Engineering, Multidisciplinary; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 641UZ
UT WOS:000281156900001
ER
PT S
AU Monroe, L
Pugmire, D
AF Monroe, Laura
Pugmire, David
BE McDowall, IE
Dolinsky, M
TI A case study of collaborative facilities use in engineering design
SO ENGINEERING REALITY OF VIRTUAL REALITY 2010
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Engineering Reality of Virtual Reality 2010
CY JAN 21, 2010
CL San Jose, CA
SP IS & T (Soc Imaging Sci & Technol)
DE H.5.1 [Information Interfaces and Presentation]: Multimedia Information
Systems - Artificial, augmented and virtual reality; H.5.3 [Information
Interfaces and Presentation]: Group and Organization Interfaces -
Computer, supported cooperative work; I.3.4 [Computer Graphics]:
Graphics Utilities - Application packages, Virtual device interfaces;
I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism -
Virtual Reality
AB In this paper we describe the use of visualization tools and facilities in the collaborative design of a replacement weapons system, the Reliable Replacement Warhead (RRW). We used not only standard collaboration methods but also a range of visualization software and facilities to bring together domain specialists from laboratories across the country to collaborate on the design and integrate this disparate input early in the design. This was the first time in U. S. weapons history that a weapon had been designed in this collaborative manner. Benefits included projected cost savings, design improvements and increased understanding across the project.
C1 [Monroe, Laura] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Monroe, L (reprint author), Los Alamos Natl Lab, MS B272, Los Alamos, NM 87545 USA.
EM lmonroe@lanl.gov; pugmire@lanl.gov
NR 6
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7918-1
J9 PROC SPIE
PY 2010
VL 7525
AR 752509
DI 10.1117/12.839511
PG 8
WC Computer Science, Cybernetics; Computer Science, Interdisciplinary
Applications; Imaging Science & Photographic Technology
SC Computer Science; Imaging Science & Photographic Technology
GA BRR45
UT WOS:000283496000008
ER
PT J
AU Fan, MH
Huang, CP
Bland, AE
Wang, ZL
Slimane, R
Wright, I
AF Fan, Maohong
Huang, C. P.
Bland, Alan E.
Wang, Zhonglin
Slimane, Rachid
Wright, Ian
BE Fan, M
Huang, CP
Bland, AE
Wang, Z
Slimane, R
Wright, IG
TI ENVIRONANOTECHNOLOGY PREFACE
SO ENVIRONANOTECHNOLOGY
LA English
DT Editorial Material; Book Chapter
C1 [Fan, Maohong] Univ Wyoming, Laramie, WY 82071 USA.
[Huang, C. P.] Univ Delaware, Newark, DE 19716 USA.
[Bland, Alan E.] Western Res Inst, Laramie, WY USA.
[Wang, Zhonglin] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Slimane, Rachid] Inst Gas Technol, Des Plaines, IL USA.
[Wright, Ian] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Fan, MH (reprint author), Univ Wyoming, Laramie, WY 82071 USA.
EM mfan@uwyo.edu
NR 0
TC 0
Z9 0
U1 1
U2 1
PU ELSEVIER ACADEMIC PRESS INC
PI SAN DIEGO
PA 525 B STREET, SUITE 1900, SAN DIEGO, CA 92101-4495 USA
BN 978-0-08-091511-1
PY 2010
BP XV
EP XV
DI 10.1016/B978-0-08-054820-3.00035-6
PG 1
WC Environmental Sciences; Nanoscience & Nanotechnology
SC Environmental Sciences & Ecology; Science & Technology - Other Topics
GA BFB02
UT WOS:000319048600001
ER
PT J
AU Stafford, SG
Bartels, DM
Begay-Campbell, S
Bubier, JL
Crittenden, JC
Cutter, SL
Delaney, JR
Jordan, TE
Kay, AC
Libecap, GD
Moore, JC
Rabalais, NN
Rejeski, D
Sala, OE
Shepherd, JM
Travis, J
AF Stafford, Susan G.
Bartels, Dennis M.
Begay-Campbell, Sandra
Bubier, Jill L.
Crittenden, John C.
Cutter, Susan L.
Delaney, John R.
Jordan, Teresa E.
Kay, Alan C.
Libecap, Gary D.
Moore, John C.
Rabalais, Nancy N.
Rejeski, David
Sala, Osvaldo E.
Shepherd, J. Marshall
Travis, Joseph
TI NOW IS THE TIME FOR ACTION: TRANSITIONS AND TIPPING POINTS IN COMPLEX
ENVIRONMENTAL SYSTEMS
SO ENVIRONMENT
LA English
DT Article
C1 [Stafford, Susan G.] Univ Minnesota, Coll Food Agr & Nat Resources Sci, Dept Forest Resources, Minneapolis, MN 55455 USA.
[Bartels, Dennis M.] San Francisco Exploratorium, San Francisco, CA USA.
[Begay-Campbell, Sandra] Sandia Natl Labs, Livermore, CA 94550 USA.
[Bubier, Jill L.] Mt Holyoke Coll, Dept Earth & Environm, Environm Studies Program, S Hadley, MA USA.
[Crittenden, John C.] Georgia Inst Technol, Sch Civil & Environm Engn, Brook Byers Inst Sustainable Syst, Atlanta, GA 30332 USA.
[Cutter, Susan L.] Univ S Carolina, Dept Geog, Hazards Res Lab, Columbia, SC 29208 USA.
[Delaney, John R.] Univ Washington, Sch Oceanog, Sensor Networks, Seattle, WA 98195 USA.
[Jordan, Teresa E.] Cornell Univ, Dept Earth & Ocean Sci, Ithaca, NY 14853 USA.
[Libecap, Gary D.] Natl Bur Econ Res, Cambridge, MA 02138 USA.
[Libecap, Gary D.] Univ Calif Santa Barbara, Bren Sch Environm Sci & Management, Santa Barbara, CA 93106 USA.
[Moore, John C.] Colorado State Univ Ft Collins, Natl Res Ecol Lab, Ft Collins, CO USA.
[Sala, Osvaldo E.] Brown Univ, Dept Ecol & Evolutionary Biol, Providence, RI 02912 USA.
[Shepherd, J. Marshall] Univ Georgia, Dept Geog, Athens, GA 30602 USA.
[Travis, Joseph] Florida State Univ, Coll Arts & Sci, Tallahassee, FL 32306 USA.
RI Moore, John/E-9802-2011; Jordan, Teresa/I-5889-2013
OI Jordan, Teresa/0000-0002-6638-433X
NR 26
TC 4
Z9 4
U1 3
U2 13
PU HELDREF PUBLICATIONS
PI WASHINGTON
PA 1319 EIGHTEENTH ST NW, WASHINGTON, DC 20036-1802 USA
SN 0013-9157
J9 ENVIRONMENT
JI Environment
PD JAN-FEB
PY 2010
VL 52
IS 1
BP 38
EP 45
DI 10.1080/00139150903481882
PG 8
WC Environmental Sciences; Environmental Studies
SC Environmental Sciences & Ecology
GA 546RF
UT WOS:000273827300005
ER
PT J
AU Dong, WM
Liang, LY
Brooks, S
Southworth, G
Gu, BH
AF Dong, Wenming
Liang, Liyuan
Brooks, Scott
Southworth, George
Gu, Baohua
TI Roles of dissolved organic matter in the speciation of mercury and
methylmercury in a contaminated ecosystem in Oak Ridge, Tennessee
SO ENVIRONMENTAL CHEMISTRY
LA English
DT Article
DE aquatic environments; complexation; geochemical model; methylation;
reduced sulfur; thiols
ID REDUCED SULFUR GROUPS; X-RAY-ABSORPTION; AQUATIC HUMIC SUBSTANCES;
FRESH-WATER ALGA; METHYL MERCURY; METAL-COMPLEXES; NATURAL-WATERS;
STABILITY-CONSTANTS; FLORIDA EVERGLADES; EXAFS EVIDENCE
AB Complexation of the mercuric ion (Hg(2+)) and methylmercury (CH(3)Hg(+)) with organic and inorganic ligands influences mercury transformation and bioaccumulation in aquatic environments. Using aqueous geochemical modelling, we show that natural dissolved organic matter (DOM), even at low concentrations (similar to 3 mg L(-1)), controls the Hg speciation by forming strong Hg-DOM and CH(3)Hg-DOM complexes through the reactive sulfur or thiol-like functional groups in DOM in the contaminated East Fork Poplar Creek at Oak Ridge, Tennessee. Concentrations of neutral Hg(OH)(2), Hg(OH) Cl, CH(3)HgCl, and CH(3)HgOH species are negligible. Of the coexisting metal ions, only Zn(2+), at concentrations of 1.6-2.6 x 10(-7) M, competes with Hg(2+) for binding with DOM, causing decrease in Hg-DOM complexation but having little impact on CH(3)Hg-DOM complexation. DOM may thus play a dominant role in controlling the transformation, biological uptake, and methylation of Hg in this contaminated ecosystem.
C1 [Dong, Wenming; Liang, Liyuan; Brooks, Scott; Southworth, George; Gu, Baohua] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
RP Gu, BH (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008,MS 6036, Oak Ridge, TN 37831 USA.
EM gub1@ornl.gov
RI Gu, Baohua/B-9511-2012; Liang, Liyuan/O-7213-2014; Dong,
Wenming/G-3221-2015
OI Gu, Baohua/0000-0002-7299-2956; Liang, Liyuan/0000-0003-1338-0324; Dong,
Wenming/0000-0003-2074-8887
FU Office of the Biological and Environmental Research, US Department of
Energy (DOE) [DE-AC05-00OR22725]
FX This research is part of the Science Focus Area (SFA) at Oak Ridge
National Laboratory (ORNL) supported by the Office of the Biological and
Environmental Research, US Department of Energy (DOE). ORNL is managed
by UT-Battelle LLC for US DOE under contract DE-AC05-00OR22725.
NR 58
TC 30
Z9 33
U1 10
U2 60
PU CSIRO PUBLISHING
PI COLLINGWOOD
PA 150 OXFORD ST, PO BOX 1139, COLLINGWOOD, VICTORIA 3066, AUSTRALIA
SN 1448-2517
J9 ENVIRON CHEM
JI Environ. Chem.
PY 2010
VL 7
IS 1
BP 94
EP 102
DI 10.1071/EN09091
PG 9
WC Chemistry, Analytical; Environmental Sciences
SC Chemistry; Environmental Sciences & Ecology
GA 558HQ
UT WOS:000274732200010
ER
PT J
AU Elias, G
Mincher, BJ
Mezyk, SP
Cullen, TD
Martin, LR
AF Elias, Gracy
Mincher, Bruce J.
Mezyk, Stephen P.
Cullen, Thomas D.
Martin, Leigh R.
TI Anisole nitration during gamma-irradiation of aqueous nitrite and
nitrate solutions: free radical versus ionic mechanisms
SO ENVIRONMENTAL CHEMISTRY
LA English
DT Article
DE N-centred radicals; nitronium ion; nitrosonium ion; radical chemistry
ID ELECTROPHILIC AROMATIC-SUBSTITUTION; PULSE-RADIOLYSIS; RATE CONSTANTS;
NITROUS-ACID; HYDROXYL RADICALS; PHASE REACTIONS; SULFURIC-ACID;
GAS-PHASE; NITROSATION; NAPHTHALENE
AB In the irradiated, acidic condensed phase, radiation-enhanced nitrous acid-catalysed, nitrosonium ion, electrophilic aromatic substitution followed by oxidation reactions dominated over radical addition reactions for anisole. This ionic mechanism would predominate in urban atmospheric aerosols and nuclear fuel dissolutions. Irradiated neutral nitrate anisole solutions were dominated by mixed nitrosonium/nitronium ion electrophilic aromatic substitution reactions, but with lower product yields. Solutions such as these might be encountered in water treatment by e-beam irradiation. Irradiation of neutral nitrite anisole solutions resulted in a statistical substitution pattern for nitroanisole products, suggesting non-electrophilic free radical reactions involving the (center dot)NO(2) radical. Although often proposed as an atmospheric nitrating agent, (center dot)NO(2) radical is unlikely to have an important effect in the acidic condensed phase in the presence of more reactive, competing species such as nitrous acid.
C1 [Elias, Gracy; Mincher, Bruce J.; Martin, Leigh R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
[Mezyk, Stephen P.; Cullen, Thomas D.] Calif State Univ Long Beach, Long Beach, CA 90840 USA.
RP Mincher, BJ (reprint author), Idaho Natl Lab, POB 1625, Idaho Falls, ID 83415 USA.
EM bruce.mincher@inl.gov
RI Martin, Leigh/P-3167-2016; Mincher, Bruce/C-7758-2017
OI Martin, Leigh/0000-0001-7241-7110;
FU USA Department of Energy (DOE), Office of Nuclear Energy, Science and
Technology under DOE Idaho Operations Office [DE-AC07-99ID13727]
FX This research was funded by the INL-LDRD program, sponsored by the USA
Department of Energy (DOE), Office of Nuclear Energy, Science and
Technology under DOE Idaho Operations Office contract DE-AC07-99ID13727.
Kinetics experiments were performed at the Radiation Laboratory,
University of Notre Dame, which is supported by the Office of Basic
Energy Sciences, USA Department of Energy. Special thanks are due to H.
Sims for helpful discussions concerning the chemistry of irradiated
nitric acid.
NR 44
TC 5
Z9 5
U1 0
U2 13
PU CSIRO PUBLISHING
PI COLLINGWOOD
PA 150 OXFORD ST, PO BOX 1139, COLLINGWOOD, VICTORIA 3066, AUSTRALIA
SN 1448-2517
J9 ENVIRON CHEM
JI Environ. Chem.
PY 2010
VL 7
IS 2
BP 183
EP 189
DI 10.1071/EN09109
PG 7
WC Chemistry, Analytical; Environmental Sciences
SC Chemistry; Environmental Sciences & Ecology
GA 586GN
UT WOS:000276894500007
ER
PT J
AU Khagram, S
Nicholas, KA
Bever, DM
Warren, J
Richards, EH
Oleson, K
Kitzes, J
Katz, R
Hwang, R
Goldman, R
Funk, J
Brauman, KA
AF Khagram, Sanjeev
Nicholas, Kimberly A.
Bever, Dena Macmynowski
Warren, Justin
Richards, Elizabeth H.
Oleson, Kirsten
Kitzes, Justin
Katz, Rebecca
Hwang, Rebeca
Goldman, Rebecca
Funk, Jason
Brauman, Kate A.
TI Thinking about knowing: conceptual foundations for interdisciplinary
environmental research
SO ENVIRONMENTAL CONSERVATION
LA English
DT Article
DE environment and security; environmental studies; epistemology;
interdisciplinary research; philosophy of science; research methods;
sustainability science; theory development
ID CONFLICT
AB Working across knowledge-based research programmes, rather than institutional structures, should be central to interdisciplinary research. In this paper, a novel framework is proposed to facilitate interdisciplinary research, with the goals of promoting communication, understanding and collaborative work. Three core elements need to be addressed to improve interdisciplinary research: the types (forms and functions) of theories, the underlying philosophies of knowledge and the combination of research styles; these three elements combine to form the research programme. Case studies from sustainability science and environmental security illustrate the application of this research programme-based framework. This framework may be helpful in overcoming often oversimplified distinctions, such as qualitative/quantitative, deductive/inductive, normative/descriptive, subjective/objective and theory/practice. Applying this conceptual framework to interdisciplinary research should foster theoretical advances, more effective communication and better problem-solving in increasingly interdisciplinary environmental fields.
C1 [Nicholas, Kimberly A.; Warren, Justin; Richards, Elizabeth H.; Oleson, Kirsten; Hwang, Rebeca; Goldman, Rebecca; Funk, Jason; Brauman, Kate A.] Stanford Univ, Interdisciplinary Program Environm & Resources, Stanford, CA 94305 USA.
[Khagram, Sanjeev] Univ Washington, Lindenberg Ctr, Seattle, WA 98195 USA.
[Nicholas, Kimberly A.] Lund Univ, Ctr Sustainabil Studies, SE-22100 Lund, Sweden.
[Bever, Dena Macmynowski] Stanford Univ, Wood Inst Environm, Stanford, CA 94305 USA.
[Richards, Elizabeth H.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Kitzes, Justin; Katz, Rebecca] Stanford Univ, Earth Syst Program, Stanford, CA 94305 USA.
[Kitzes, Justin] Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA.
[Katz, Rebecca] High Mt Inst, Leadville, CO 80461 USA.
[Hwang, Rebeca] YouNoodle, San Francisco, CA 94110 USA.
[Goldman, Rebecca] Nature Conservancy, Arlington, VA 22203 USA.
[Funk, Jason] Environm Def Fund, Washington, DC 20009 USA.
[Brauman, Kate A.] Univ Minnesota, Inst Environm, St Paul, MN 55108 USA.
RP Nicholas, KA (reprint author), Stanford Univ, Interdisciplinary Program Environm & Resources, Yang & Yamazaki Environm & Energy Bldg,473 Via Or, Stanford, CA 94305 USA.
EM kimberly.nicholas.academic@gmail.com
RI Kitzes, Justin/D-1818-2011; Nicholas, Kimberly/G-3669-2010; Oleson,
Kirsten/M-7741-2015;
OI Kitzes, Justin/0000-0001-7839-3594; Nicholas,
Kimberly/0000-0002-4756-7851; Oleson, Kirsten/0000-0002-7992-5051;
Brauman, Kate/0000-0002-8099-285X
NR 44
TC 14
Z9 14
U1 2
U2 17
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0376-8929
J9 ENVIRON CONSERV
JI Environ. Conserv.
PY 2010
VL 37
IS 4
BP 388
EP 397
DI 10.1017/S0376892910000809
PG 10
WC Biodiversity Conservation; Environmental Sciences
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 696UG
UT WOS:000285466300004
ER
PT J
AU Kallis, G
Ray, I
Fulton, J
McMahon, JE
AF Kallis, Giorgos
Ray, Isha
Fulton, Julian
McMahon, James E.
TI Public Versus Private: Does It Matter for Water Conservation? Insights
from California
SO ENVIRONMENTAL MANAGEMENT
LA English
DT Article
DE Water conservation; Droughts; Privatization; Public perceptions;
California
ID SIDE MANAGEMENT POLICIES; URBAN WATER; SECTOR PARTICIPATION;
CONSUMPTION; DEMAND; DROUGHT; DETERMINANTS; ATTITUDES; YORKSHIRE
AB This article asks three connected questions: First, does the public view private and public utilities differently, and if so, does this affect attitudes to conservation? Second, do public and private utilities differ in their approaches to conservation? Finally, do differences in the approaches of the utilities, if any, relate to differences in public attitudes? We survey public attitudes in California toward (hypothetical but plausible) voluntary and mandated water conservation, as well as to price increases, during a recent period of shortage. We do this by interviewing households in three pairs of adjacent public and private utilities. We also survey managers of public and private urban water utilities to see if they differ in their approaches to conservation and to their customers. On the user side we do not find pronounced differences, though a minority of customers in all private companies would be more willing to conserve or pay higher prices under a public operator. No respondent in public utility said the reverse. Negative attitudes toward private operators were most pronounced in the pair marked by a controversial recent privatization and a price hike. Nonetheless, we find that California's history of recurrent droughts and the visible role of the state in water supply and drought management undermine the distinction between public and private. Private utilities themselves work to underplay the distinction by stressing the collective ownership of the water source and the collective value of conservation. Overall, California's public utilities appear more proactive and target-oriented in asking their customers to conserve than their private counterparts and the state continues to be important in legitimating and guiding conservation behavior, whether the utility is in public hands or private.
C1 [Kallis, Giorgos] Univ Autonoma Barcelona, ICTA, ETSE, E-08193 Barcelona, Spain.
[Ray, Isha; Fulton, Julian] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA.
[McMahon, James E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Energy Anal Dept, Environm Energy Technol Div, Berkeley, CA 94720 USA.
RP Kallis, G (reprint author), Univ Autonoma Barcelona, ICTA, ETSE, QC-3095, E-08193 Barcelona, Spain.
EM giorgoskallis@gmail.com; isharay@berkeley.edu;
julianfulton@berkeley.edu; JEMcMahon@LBL.gov
RI KALLIS, GIORGOS/B-9448-2015
OI KALLIS, GIORGOS/0000-0003-0688-9552
FU European Community; University of California's Committee on Research
(COR)
FX Hanna Jacobsen conducted most of our telephone surveys with users and
water managers. This project owes much to Hanna's tireless and
meticulous work. Anita Milman conducted the tests for statistical
significance in our comparisons of public and private utilities. This
research protocol was designed in accordance with the rules of UC
Berkeley's Office for the Protection of Human Subjects. We are obliged
by these rules not to provide any information that would permit
identification of individuals from whom we received information that is
not publicly available. The managers of Utility A and B, who therefore
must remain unnamed, were most generous with their time and their
perspectives. We are grateful to the four reviewers of this article for
their detailed comments and suggestions. Kallis' research was supported
by a Marie Curie International Fellowship within the 6th European
Community Framework Programme; Ray's research received support from
University of California's Committee on Research (COR).
NR 44
TC 10
Z9 12
U1 10
U2 55
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0364-152X
J9 ENVIRON MANAGE
JI Environ. Manage.
PD JAN
PY 2010
VL 45
IS 1
BP 177
EP 191
DI 10.1007/s00267-009-9403-8
PG 15
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 551KG
UT WOS:000274206500016
PM 19967363
ER
PT J
AU Kunin, V
Engelbrektson, A
Ochman, H
Hugenholtz, P
AF Kunin, Victor
Engelbrektson, Anna
Ochman, Howard
Hugenholtz, Philip
TI Wrinkles in the rare biosphere: pyrosequencing errors can lead to
artificial inflation of diversity estimates
SO ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID SEQUENCE; QUALITY; SEARCH
AB P>Massively 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.
C1 [Kunin, Victor; Engelbrektson, Anna; Hugenholtz, Philip] DOE Joint Genome Inst, Microbial Ecol Program, Walnut Creek, CA 94598 USA.
[Ochman, Howard] Univ Arizona, Dept Chem & Biochem & Mol Biophys, Tucson, AZ USA.
RP Hugenholtz, P (reprint author), DOE Joint Genome Inst, Microbial Ecol Program, Walnut Creek, CA 94598 USA.
EM phugenholtz@lbl.gov
RI Hugenholtz, Philip/G-9608-2011; Engelbrektson, Anna/K-5563-2012;
Engelbrektson, Anna/F-1687-2013
FU NSF [OPP0632359]; US Department of Energy's Office of Science,
Biological and Environmental Research Program; University of California,
Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Lawrence
Livermore National Laboratory [DE-AC52-07NA27344]; Los Alamos National
Laboratory [DE-AC02-06NA25396]
FX We thank Suzan Yilmaz for extracting E. coli DNA and Alex Copeland for
discussions on quality-score based filtering. VK was supported in part
by NSF grant OPP0632359. This work was performed under the auspices of
the US Department of Energy's Office of Science, Biological and
Environmental Research Program, and by the University of California,
Lawrence Berkeley National Laboratory under contract No.
DE-AC02-05CH11231, Lawrence Livermore National Laboratory under Contract
No. DE-AC52-07NA27344, and Los Alamos National Laboratory under contract
No. DE-AC02-06NA25396.
NR 13
TC 630
Z9 634
U1 15
U2 139
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1462-2912
J9 ENVIRON MICROBIOL
JI Environ. Microbiol.
PD JAN
PY 2010
VL 12
IS 1
BP 118
EP 123
DI 10.1111/j.1462-2920.2009.02051.x
PG 6
WC Microbiology
SC Microbiology
GA 551TW
UT WOS:000274234200011
PM 19725865
ER
PT B
AU Dill, BD
Young, JC
Carey, PA
VerBerkmoes, NC
AF Dill, Brian D.
Young, Jacque C.
Carey, Patricia A.
VerBerkmoes, Nathan C.
BE Liu, WT
Jansson, JK
TI Metaproteomics: Techniques and Applications
SO ENVIRONMENTAL MOLECULAR MICROBIOLOGY
LA English
DT Article; Book Chapter
ID TANDEM MASS-SPECTROMETRY; SHEWANELLA-ONEIDENSIS MR-1; SHOTGUN
PROTEOMICS; MICROBIAL COMMUNITIES; PROTEIN EXPRESSION; ACTIVATED-SLUDGE;
RHODOPSEUDOMONAS-PALUSTRIS; COMPARATIVE METAGENOMICS; ABSOLUTE PROTEIN;
YEAST PROTEOME
AB Microbial ecology is currently experiencing a renaissance spurred by the rapid development of molecular techniques and 'omics' technologies in particular. As never before, these tools have allowed researchers in the field to produce a massive amount of information through in situ measurements and analysis of natural microbial communities, both vital approaches to the goal of unravelling the interactions of microbes with their environment and with one another. While genomics can provide information regarding the genetic potential of microbes, proteomics characterizes the primary end-stage product, proteins, thus conveying functional information concerning microbial activity. Advances in mass spectrometry instrumentation and methodologies, along with bioinformatics approaches, have brought this analytic chemistry technique to relevance in the biological realm due to its powerful applications in proteomics. Mass spectrometry-enabled proteomics, including 'bottom-up' and 'top-down' approaches, is capable of supplying a wealth of biologically relevant information, from simple protein cataloguing of the proteome of a microbial community to identifying posttranslational modifications of individual proteins.
C1 [Young, Jacque C.] Univ Tennessee, Oak Ridge Natl Lab, Grad Sch Genome Sci & Technol, Knoxville, TN USA.
[Carey, Patricia A.] Univ Tennessee, Oak Ridge Natl Lab, Dept Elect Engn & Comp Sci, Knoxville, TN USA.
[Dill, Brian D.; VerBerkmoes, Nathan C.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Dill, BD (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM dillbd@ornl.gov; youngjc@ornl.gov; careypa@ornl.gov;
verberkmoesn@ornl.gov
NR 83
TC 3
Z9 3
U1 0
U2 4
PU CAISTER ACADEMIC PRESS
PI WYMONDHAM
PA 32 HEWITTS LANE, WYMONDHAM NR 18 0JA, ENGLAND
BN 978-1-904455-52-3
PY 2010
BP 37
EP 61
PG 25
WC Microbiology
SC Microbiology
GA BLV52
UT WOS:000271174600003
ER
PT B
AU Prosser, J
Jansson, JK
Liu, WT
AF Prosser, James
Jansson, Janet K.
Liu, Wen-Tso
BE Liu, WT
Jansson, JK
TI Nucleic-acid-based Characterization of Community Structure and Function
SO ENVIRONMENTAL MOLECULAR MICROBIOLOGY
LA English
DT Article; Book Chapter
ID 16S RIBOSOMAL-RNA; BALTIC SEA SEDIMENTS; OLIGONUCLEOTIDE PRIMER
EXTENSION; GRADIENT GEL-ELECTROPHORESIS; MICROBIAL COMMUNITY;
BROMODEOXYURIDINE IMMUNOCAPTURE; GENE-EXPRESSION; QUANTITATIVE
DETECTION; MOLECULAR DIVERSITY; ACTIVE BACTERIA
AB Nucleic acid-based techniques were first used to characterize natural microbial communities in the early 1990s and are now used routinely. The ability to characterize communities without the requirement for cultivation has led to enormous advances in our ability to describe microbial communities and to determine the factors that influence their structure. New generations of molecular techniques provide even greater descriptive power and can be used to assess the physiological potential and ecosystem function of communities. They also enable microbial ecologists to address fundamental questions in population and community ecology, including investigation of the links between diversity and function. This chapter describes methods currently used to analyse nucleic acids extracted from environmental samples, and shows how they can be used to characterize communities. It also looks ahead to exciting new technologies that are likely to increase greatly our ability to explore and understand the complex functions and interactions of microbial communities in natural environments.
C1 [Prosser, James] Univ Aberdeen, Inst Environm & Biol Sci, Aberdeen, Scotland.
[Jansson, Janet K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Ecol, Div Earth Sci, Berkeley, CA 94720 USA.
[Liu, Wen-Tso] Univ Illinois, Newmark Civil Engn Lab, Dept Civil & Environm Engn, Urbana, IL 61801 USA.
RP Prosser, J (reprint author), Univ Aberdeen, Inst Environm & Biol Sci, Aberdeen, Scotland.
EM j.prosser@abdn.ac.uk; janet.jansson@lbl.gov; wtliu@illinois.edu;
wtliu@illinois.edu; janet.jansson@lbl.gov
RI Liu, Wen-Tso/C-8788-2011
OI Liu, Wen-Tso/0000-0002-8700-9803
NR 59
TC 11
Z9 12
U1 0
U2 2
PU CAISTER ACADEMIC PRESS
PI WYMONDHAM
PA 32 HEWITTS LANE, WYMONDHAM NR 18 0JA, ENGLAND
BN 978-1-904455-52-3
PY 2010
BP 63
EP 86
PG 24
WC Microbiology
SC Microbiology
GA BLV52
UT WOS:000271174600004
ER
PT B
AU Andersen, GL
He, ZL
DeSantis, TZ
Brodie, EL
Zhou, JZ
AF Andersen, Gary L.
He, Zhili
DeSantis, Todd Z.
Brodie, Eoin L.
Zhou, Jizhong
BE Liu, WT
Jansson, JK
TI The Use of Microarrays in Microbial Ecology
SO ENVIRONMENTAL MOLECULAR MICROBIOLOGY
LA English
DT Article; Book Chapter
ID 16S RIBOSOMAL-RNA; MULTIPLE SEQUENCE ALIGNMENT; URANIUM-CONTAMINATED
AQUIFER; GROWING NEURAL-NETWORK; PROBE DESIGN CRITERIA; SELF-ORGANIZING
MAPS; GENE-EXPRESSION; OLIGONUCLEOTIDE MICROARRAYS; DNA MICROARRAYS;
HIGH-THROUGHPUT
AB Microarrays have proven to be a useful and high-throughput method to provide targeted DNA sequence information for up to many thousands of specific genetic regions in a single test. A microarray consists of multiple DNA oligonucleotide probes that, under high stringency conditions, hybridize only to specific complementary nucleic acid sequences (targets). A fluorescent signal indicates the presence and, in many cases, the abundance of genetic regions of interest. In this chapter we will look at how microarrays are used in microbial ecology, especially with the recent increase in microbial community DNA sequence data. Of particular interest to microbial ecologists, phylogenetic microarrays are used for the analysis of phylotypes in a community and functional gene arrays are used for the analysis of functional genes, and, by inference, phylotypes in environmental samples. A phylogenetic microarray that has been developed by the Andersen laboratory, the PhyloChip, will be discussed as an example of a microarray that targets the known diversity within the 16S rRNA gene to determine microbial community composition. Using multiple, confirmatory probes to increase the confidence of detection and a mismatch probe for every perfect match probe to minimize the effect of cross-hybridization by non-target regions, the PhyloChip is able to simultaneously identify any of thousands of taxa present in an environmental sample. The PhyloChip is shown to reveal greater diversity within a community than rRNA gene sequencing due to the placement of the entire gene product on the microarray compared with the analysis of up to thousands of individual molecules by traditional sequencing methods. A functional gene array that has been developed by the Zhou laboratory, the GeoChip, will be discussed as an example of a microarray that dynamically identifies functional activities of multiple members within a community. The recent version of GeoChip contains more than 24,000 50mer oligonucleotide probes and covers more than 10,000 gene sequences in 150 gene categories involved in carbon, nitrogen, sulphur, and phosphorus cycling, metal resistance and reduction, and organic contaminant degradation. GeoChip can be used as a generic tool for microbial community analysis, and also link microbial community structure to ecosystem functioning. Examples of the application of both arrays in different environmental samples will be described in the two subsequent sections.
C1 [Andersen, Gary L.; DeSantis, Todd Z.; Brodie, Eoin L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Environm Biotechnol, Berkeley, CA 94720 USA.
[He, Zhili; Zhou, Jizhong] Univ Oklahoma, Stephenson Res & Technol Ctr, Inst Environm Genom IEG, Norman, OK 73019 USA.
RP Andersen, GL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Environm Biotechnol, Berkeley, CA 94720 USA.
EM GLAndersen@lbl.gov; zhili.he@ou.edu; tdesantis@lbl.gov;
elbrodie@lbl.gov; jzhou@ou.edu
RI He, Zhili/C-2879-2012; Andersen, Gary/G-2792-2015; Brodie,
Eoin/A-7853-2008
OI Andersen, Gary/0000-0002-1618-9827; Brodie, Eoin/0000-0002-8453-8435
NR 85
TC 9
Z9 9
U1 0
U2 10
PU CAISTER ACADEMIC PRESS
PI WYMONDHAM
PA 32 HEWITTS LANE, WYMONDHAM NR 18 0JA, ENGLAND
BN 978-1-904455-52-3
PY 2010
BP 87
EP 109
PG 23
WC Microbiology
SC Microbiology
GA BLV52
UT WOS:000271174600005
ER
PT B
AU Dicksved, J
Zhao, LP
Jansson, JK
AF Dicksved, Johan
Zhao, Liping
Jansson, Janet K.
BE Liu, WT
Jansson, JK
TI The Human Environment
SO ENVIRONMENTAL MOLECULAR MICROBIOLOGY
LA English
DT Article; Book Chapter
ID INFLAMMATORY-BOWEL-DISEASE; 16S RIBOSOMAL-RNA; CULTURE-INDEPENDENT
ANALYSIS; ABERRANT CRYPT FOCI; GRADIENT GEL-ELECTROPHORESIS;
FRAGMENT-LENGTH-POLYMORPHISM; SULFATE-REDUCING BACTERIA;
POLYMERASE-CHAIN-REACTION; MUCOSA-ASSOCIATED MICROBIOTA; HUMAN COLONIC
MICROBIOTA
AB Applications of recent advances in molecular methods have illuminated the previously hidden diversity of the microbial world that not only inhabits our bodies, but that also lives in a close symbiotic association with us. This human-associated microbiota, or human microbiome, is responsible for many key functions in our bodies. Increasing evidence suggests many important roles of individual members of the human microbiome and their respective influences towards ultimate health and disease of the host. This chapter highlights some of the important functions of the human microbiome, many of which were gleaned using different molecular approaches. The clinical field has thus greatly benefited from the molecular toolbox that was initially developed by microbial ecologists for investigation of other complex ecosystems, such as soil. As the field has progressively moved away from a dependence on cultivation-based approaches towards increasing reliance on molecular approaches, the amount of knowledge about the human microbiome composition and function has greatly expanded. Most recent studies using molecular tools, including various 'omics' approaches, have focused on the intestinal microbiota. Therefore, we have also primarily discussed the gut microbiota in this chapter. In addition, the influence of difference host-related factors, such as genetics, age, birth mode, diet and geographical location are discussed with respect to their impact on the composition and related function of the human microbiome. Some beneficial bacteria, such as probiotic strains, are discussed, in addition to those that are particularly detrimental to human health. Some of the latter include correlations of microbial compositions to intestinal diseases and cancer. The more information that we have about the key roles of specific members of the human microbiome, the more potential we have for manipulation of the composition of the microbiota to enhance the prevalence of beneficial species and to diminish the amounts of detrimental ones. This is a guiding vision for future research in this area.
C1 [Dicksved, Johan; Jansson, Janet K.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Ecol, Berkeley, CA 94720 USA.
[Zhao, Liping] Shanghai Jiao Tong Univ, Sch Life Sci & Biotechnol, Shanghai 200030, Peoples R China.
RP Dicksved, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Dept Ecol, Berkeley, CA 94720 USA.
EM johan.dicksved@mikrob.slu.se; lpzhao@sjtu.edu.cn; janet.jansson@lbl.gov;
janet.jansson@lbl.gov
NR 172
TC 0
Z9 0
U1 2
U2 9
PU CAISTER ACADEMIC PRESS
PI WYMONDHAM
PA 32 HEWITTS LANE, WYMONDHAM NR 18 0JA, ENGLAND
BN 978-1-904455-52-3
PY 2010
BP 167
EP 190
PG 24
WC Microbiology
SC Microbiology
GA BLV52
UT WOS:000271174600009
ER
PT S
AU Michel, RL
Kraemer, T
Cecil, LD
AF Michel, Robert L.
Kraemer, Thomas
Cecil, L. DeWayne
BE Froehlich, K
TI SURFACE WATER, UNSATURATED ZONE, AND GLACIAL SYSTEMS
SO ENVIRONMENTAL RADIONUCLIDES: TRACERS AND TIMERS OF TERRESTRIAL PROCESSES
SE Radioactivity in the Environment
LA English
DT Article; Book Chapter
ID FERTILIZER-DERIVED URANIUM; ENVIRONMENTAL TRITIUM; GROUNDWATER RECHARGE;
UNITED-STATES; RIVER-BASIN; ICE CORES; STREAMFLOW GENERATION; DEPLETED
URANIUM; PERCOLATION FLUX; STABLE ISOTOPES
C1 [Michel, Robert L.] US Geol Survey, Menlo Pk, CA USA.
[Kraemer, Thomas] US Geol Survey, Natl Ctr 430, Reston, VA 22092 USA.
[Cecil, L. DeWayne] US Geol Survey, INL, Idaho Falls, ID USA.
RP Michel, RL (reprint author), US Geol Survey, MS 434, Menlo Pk, CA USA.
NR 132
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1569-4860
BN 978-0-08-091329-2
J9 RADIOACTIV ENVIRONM
PY 2010
VL 16
BP 139
EP 181
PG 43
WC Geochemistry & Geophysics; Environmental Sciences
SC Geochemistry & Geophysics; Environmental Sciences & Ecology
GA BEH06
UT WOS:000316550300006
ER
PT S
AU Michel, RL
Kraemer, T
Cecil, LD
AF Michel, Robert L.
Kraemer, Thomas
Cecil, L. DeWayne
BE Froehlich, K
TI RADIONUCLIDES AND TRANSIENT GAS TRACERS IN STUDIES OF LAKES AND INLAND
SEAS
SO ENVIRONMENTAL RADIONUCLIDES: TRACERS AND TIMERS OF TERRESTRIAL PROCESSES
SE Radioactivity in the Environment
LA English
DT Article; Book Chapter
ID DEEP-WATER RENEWAL; DEAD-SEA; BLACK-SEA; CASPIAN SEA; NEW-YORK; ISOTOPIC
ANALYSES; RADIUM ISOTOPES; RESIDENCE TIMES; SURFACE WATERS; WILKES-LAND
C1 [Michel, Robert L.] US Geol Survey, Menlo Pk, CA USA.
[Kraemer, Thomas] US Geol Survey, Natl Ctr 430, Reston, VA 22092 USA.
[Cecil, L. DeWayne] US Geol Survey, INL, Idaho Falls, ID USA.
RP Michel, RL (reprint author), US Geol Survey, MS 434, Menlo Pk, CA USA.
NR 84
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1569-4860
BN 978-0-08-091329-2
J9 RADIOACTIV ENVIRONM
PY 2010
VL 16
BP 182
EP 204
PG 23
WC Geochemistry & Geophysics; Environmental Sciences
SC Geochemistry & Geophysics; Environmental Sciences & Ecology
GA BEH06
UT WOS:000316550300007
ER
PT J
AU Fingerman, KR
Torn, MS
O'Hare, MH
Kammen, DM
AF Fingerman, Kevin R.
Torn, Margaret S.
O'Hare, Michael H.
Kammen, Daniel M.
TI Accounting for the water impacts of ethanol production
SO ENVIRONMENTAL RESEARCH LETTERS
LA English
DT Article
DE biofuel; water; ethanol; life cycle assessment; LCA; energy policy
ID LAND-USE; ENERGY; BIOFUELS; EMISSIONS; BIOENERGY
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.
C1 [Fingerman, Kevin R.; Torn, Margaret S.; Kammen, Daniel M.] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA.
[Torn, Margaret S.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[O'Hare, Michael H.; Kammen, Daniel M.] Univ Calif Berkeley, Goldman Sch Publ Policy, Berkeley, CA 94720 USA.
RP Fingerman, KR (reprint author), Univ Calif Berkeley, Energy & Resources Grp, 310 Barrows Hall, Berkeley, CA 94720 USA.
EM kfingerman@berkeley.edu
RI Torn, Margaret/D-2305-2015
NR 34
TC 34
Z9 34
U1 4
U2 24
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-9326
J9 ENVIRON RES LETT
JI Environ. Res. Lett.
PD JAN-MAR
PY 2010
VL 5
IS 1
AR 014020
DI 10.1088/1748-9326/5/1/014020
PG 7
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 575VR
UT WOS:000276097900021
ER
PT J
AU Koomey, J
Akbari, H
Blumstein, C
Brown, M
Brown, R
Calwell, C
Carter, S
Cavanagh, R
Chang, A
Claridge, D
Craig, P
Diamond, R
Eto, JH
Fulkerson, W
Gadgil, A
Geller, H
Goldemberg, J
Goldman, C
Goldstein, DB
Greenberg, S
Hafemeister, D
Harris, J
Harvey, H
Heitz, E
Hirst, E
Hummel, H
Kammen, D
Kelly, H
Laitner, S
Levine, M
Lovins, A
Masters, G
McMahon, JE
Meier, A
Messenger, M
Millhone, J
Mills, E
Nadel, S
Nordman, B
Price, L
Romm, J
Ross, M
Rufo, M
Sathaye, J
Schipper, L
Schneider, SH
Sweeney, JL
Verdict, M
Vorsatz, D
Wang, D
Weinberg, C
Wilk, R
Wilson, J
Worrell, E
AF Koomey, Jonathan
Akbari, Hashem
Blumstein, Carl
Brown, Marilyn
Brown, Richard
Calwell, Chris
Carter, Sheryl
Cavanagh, Ralph
Chang, Audrey
Claridge, David
Craig, Paul
Diamond, Rick
Eto, Joseph H.
Fulkerson, William
Gadgil, Ashok
Geller, Howard
Goldemberg, Jose
Goldman, Chuck
Goldstein, David B.
Greenberg, Steve
Hafemeister, David
Harris, Jeff
Harvey, Hal
Heitz, Eric
Hirst, Eric
Hummel, Holmes
Kammen, Dan
Kelly, Henry
Laitner, Skip
Levine, Mark
Lovins, Amory
Masters, Gil
McMahon, James E.
Meier, Alan
Messenger, Michael
Millhone, John
Mills, Evan
Nadel, Steve
Nordman, Bruce
Price, Lynn
Romm, Joe
Ross, Marc
Rufo, Michael
Sathaye, Jayant
Schipper, Lee
Schneider, Stephen H.
Sweeney, James L.
Verdict, Malcolm
Vorsatz, Diana
Wang, Devra
Weinberg, Carl
Wilk, Richard
Wilson, John
Worrell, Ernst
TI Defining a standard metric for electricity savings
SO ENVIRONMENTAL RESEARCH LETTERS
LA English
DT Article
DE electricity savings; energy efficiency; energy policy; climate change
solutions; coal-fired power plants; back-of-the-envelope calculations;
Arthur H Rosenfeld
ID ENERGY; BUILDINGS; EMISSION; CURVES; PLANTS
AB The growing investment by governments and electric utilities in energy efficiency programs highlights the need for simple tools to help assess and explain the size of the potential resource. One technique that is commonly used in this effort is to characterize electricity savings in terms of avoided power plants, because it is easier for people to visualize a power plant than it is to understand an abstraction such as billions of kilowatt-hours. Unfortunately, there is no standardization around the characteristics of such power plants.
In this letter we define parameters for a standard avoided power plant that have physical meaning and intuitive plausibility, for use in back-of-the-envelope calculations. For the prototypical plant this article settles on a 500 MW existing coal plant operating at a 70% capacity factor with 7% T&D losses. Displacing such a plant for one year would save 3 billion kWh/year at the meter and reduce emissions by 3 million metric tons of CO(2) per year.
The proposed name for this metric is the Rosenfeld, in keeping with the tradition among scientists of naming units in honor of the person most responsible for the discovery and widespread adoption of the underlying scientific principle in question-Dr Arthur H Rosenfeld.
C1 [Koomey, Jonathan] Lawrence Berkeley Lab, Oakland, CA 94620 USA.
[Koomey, Jonathan] Stanford Univ, Oakland, CA 94620 USA.
RP Koomey, J (reprint author), Lawrence Berkeley Lab, Oakland, CA 94620 USA.
EM JGKoomey@stanford.edu
RI Worrell, Ernst/L-5455-2013;
OI Worrell, Ernst/0000-0002-0199-9755; Gadgil, Ashok/0000-0002-0357-9455;
Urge-Vorsatz, Diana/0000-0003-2570-5341
NR 44
TC 5
Z9 5
U1 0
U2 15
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1748-9326
J9 ENVIRON RES LETT
JI Environ. Res. Lett.
PD JAN-MAR
PY 2010
VL 5
IS 1
AR 014017
DI 10.1088/1748-9326/5/1/014017
PG 10
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 575VR
UT WOS:000276097900018
ER
PT J
AU Menon, S
Akbari, H
Mahanama, S
Sednev, I
Levinson, R
AF Menon, Surabi
Akbari, Hashem
Mahanama, Sarith
Sednev, Igor
Levinson, Ronnen
TI Radiative forcing and temperature response to changes in urban albedos
and associated CO2 offsets
SO ENVIRONMENTAL RESEARCH LETTERS
LA English
DT Article
DE radiative forcing; urban albedo; CO2 offsets
ID LAND-SURFACE; HEAT-ISLAND
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(-2), and temperature decreased by similar to 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(-2), and land surface temperature decreased by similar to 0.03 K for an average 0.01 increase in surface albedo. Based on these forcings, the expected emitted CO2 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 similar to 57 Gt CO2. A more meaningful evaluation of the impacts of urban albedo increases on global climate and the expected CO2 offsets would require simulations which better characterize urban surfaces and represent the full annual cycle.
C1 [Menon, Surabi; Akbari, Hashem; Sednev, Igor; Levinson, Ronnen] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Mahanama, Sarith] NASA, Goddard Space Flight Ctr, Global Modeling & Assimilat Off, Greenbelt, MD 20771 USA.
RP Menon, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
FU California Energy Commission (CEC); Assistant Secretary for Energy
Efficiency and Renewable Energy at Lawrence Berkeley National Laboratory
[DE-AC02-05CH11231]; NASA GSFC
FX This work was supported by the California Energy Commission (CEC)
through its Public Interest Energy Research Program (PIER), and by the
Assistant Secretary for Energy Efficiency and Renewable Energy at
Lawrence Berkeley National Laboratory under Contract No
DE-AC02-05CH11231. The authors wish to acknowledge the support and
guidance from staff of the California Energy Commission Project manager,
Guido Franco; and PIER Energy-Related Environmental Research manager,
Linda Spiegel. Commissioner Arthur Rosenfeld of the California Energy
Commission helped with problem formulation and analysis. We especially
acknowledge support from Randy Koster of NASA GSFC, for advice and help
with the simulations performed in this work.
NR 16
TC 50
Z9 51
U1 1
U2 24
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1748-9326
J9 ENVIRON RES LETT
JI Environ. Res. Lett.
PD JAN-MAR
PY 2010
VL 5
IS 1
AR 014005
DI 10.1088/1748-9326/5/1/014005
PG 11
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 575VR
UT WOS:000276097900006
ER
PT J
AU Williams, KH
Nevin, KP
Franks, A
Englert, A
Long, PE
Lovley, DR
AF Williams, Kenneth H.
Nevin, Kelly P.
Franks, Ashley
Englert, Andreas
Long, Philip E.
Lovley, Derek R.
TI Electrode-Based Approach for Monitoring In Situ Microbial Activity
During Subsurface Bioremediation
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID SULFURREDUCENS FUEL-CELLS; FE(III) OXIDE REDUCTION;
GEOBACTER-SULFURREDUCENS; CONTAMINATED GROUNDWATER; HARVESTING
ELECTRODES; SUBMICROMOLAR LEVELS; ANODE BIOFILM; COMMUNITIES; SEDIMENTS;
URANIUM
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/m(2)) 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/m(2)). 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.
C1 [Williams, Kenneth H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Nevin, Kelly P.; Franks, Ashley; Lovley, Derek R.] Univ Massachusetts, Dept Microbiol, Amherst, MA 01003 USA.
[Englert, Andreas] Ruhr Univ Bochum, Dept Hydrogeol, Bochum, Germany.
[Long, Philip E.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Williams, KH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM khwilliams@lbl.gov
RI Long, Philip/F-5728-2013; Williams, Kenneth/O-5181-2014
OI Long, Philip/0000-0003-4152-5682; Williams, Kenneth/0000-0002-3568-1155
FU U.S. Department of Energy [DE-AC02-05CH11231]; Office of Naval Research
[N00014-07-1-0966]; [DE-FC02ER63446]
FX Funding was provided by the Environmental Remediation Science Program,
Office of Biological and Environmental Research, U.S. Department of
Energy (DE-AC02-05CH11231), Cooperative Agreement DE-FC02ER63446, and
the Office of Naval Research N00014-07-1-0966. We thank Mike Wilkins,
Hila Elifantz, and Lucie N'Guessan for their assistance with field
experiments and Sarah Morris for quantifying groundwater uranium
concentrations.
NR 41
TC 35
Z9 35
U1 5
U2 51
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 47
EP 54
DI 10.1021/es9017464
PG 8
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000013
PM 19921843
ER
PT J
AU Rosso, KM
Yanina, SV
Gorski, CA
Larese-Casanova, P
Scherer, MM
AF Rosso, Kevin M.
Yanina, Svetlana V.
Gorski, Christopher A.
Larese-Casanova, Philip
Scherer, Michelle M.
TI Connecting Observations of Hematite (alpha-Fe2O3) Growth Catalyzed by
Fe(II)
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID HYPERFINE PARAMETER DISTRIBUTIONS; INTERFACIAL ELECTRON-TRANSFER;
IRON-OXIDE; MOSSBAUER-SPECTROSCOPY; IRON(III) OXIDES; AQUEOUS FE(II);
FERROUS IRON; DISSOLUTION; TRANSITION; REDUCTION
AB Electron exchange between aqueous Fe(II) and structural Fe(Ill) in iron oxides and oxyhydroxides is important for understanding degradation of environmental pollutants through its apparent constitutive role underlying highly reactive "sorbed Fe(II)" and by catalyzing phase interconversion among these minerals. Although a mechanistic understanding of relationships between interfacial Fe(II)(ads)-Fe(III)(oxide) electron transfer, bulk electron conduction, Fe(II) release, and phase transformation behavior is emerging, much remains unclear, in part due to poorly interconnected investigations. The focus of this study is on reconciling two mutually similar observations of Fe(II)-catalyzed hematite growth documented spectroscopically and microscopically under substantially different chemical conditions. Here, we employ iron isotopic labeling to demonstrate that hematite grown on the (001) surface in Fe(II)-oxalate solution at pH 2.10 and 348 K has magnetic properties that closely correspond to those of hematite grown in Fe(II) solution at pH 7.4 and room temperature. The temperature evolution and extent of the Morin transition displayed in these two materials strongly suggest a mechanistic link involving trace structural Fe(II) incorporation into the growing hematite. Our findings indicate that Fe(II) catalyzed growth of hematite on hematite can occur under environmentally relevant conditions and may be due to bulk electron conduction previously demonstrated for hematite single crystals.
C1 [Rosso, Kevin M.; Yanina, Svetlana V.] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
[Gorski, Christopher A.; Scherer, Michelle M.] Univ Iowa, Dept Civil & Environm Engn, Iowa City, IA 52242 USA.
[Larese-Casanova, Philip] Yale Univ, Dept Geol & Geophys, New Haven, CT 06520 USA.
RP Rosso, KM (reprint author), Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
EM kevin.rosso@pnl.gov
FU U.S. Department of Energy (DOE); National Science Foundation
[EAR-0506679]
FX This work was made possible by a grant to K.M.R. from the U.S.
Department of Energy (DOE), Office of Basic Energy Sciences, Geosciences
Program, and a Nanoscale Interdisciplinary Research Team (NIRT) grant
from National Science Foundation NIRT (MMS, Grant EAR-0506679). This
research was performed in part using the William R. Wiley Environmental
Molecular Sciences Laboratory and the microprobe facility at Pacific
Northwest National Laboratory. We gratefully acknowledge Paul Gassman
for assistance with hematite powder synthesis. The EMS], is funded by
the Office of Biological and Environmental Research in the U.S.
Department of Energy. Pacific Northwest National Laboratory is operated
by Battelle for the U.S. Department of Energy under Contract
DE-AC06-7611LO 1830.
NR 49
TC 56
Z9 58
U1 6
U2 93
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
EI 1520-5851
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 61
EP 67
DI 10.1021/es901882a
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000015
PM 20039734
ER
PT J
AU Burns, JL
Ginn, BR
Bates, DJ
Dublin, SN
Taylor, JV
Apkarian, RP
Amaro-Garcia, S
Neal, AL
Dichristina, TJ
AF Burns, Justin L.
Ginn, Brian R.
Bates, David J.
Dublin, Steven N.
Taylor, Jeanette V.
Apkarian, Robert P.
Amaro-Garcia, Samary
Neal, Andrew L.
Dichristina, Thomas J.
TI Outer Membrane-Associated Serine Protease Involved in Adhesion of
Shewanella oneidensis to Fe(III) Oxides
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID EXTRACELLULAR ELECTRON-TRANSFER; ANAEROBIC RESPIRATION; DISSIMILATORY
FE(III); MN(IV) REDUCTION; PUTREFACIENS REQUIRES; CYTOCHROMES MTRC;
MR-1; IRON; OMCA; DATABASE
AB The facultative anaerobe Shewanella oneidensis MR-1 respires a variety of anaerobic electron acceptors, including insoluble Fe(III)oxides. S. oneidensis employs a number of novel strategies for respiration of insoluble Fe(III) oxides, including localization of respiratory proteins to the cell outer membrane (OM). The molecular mechanism by which S. oneidensis adheres to and respires Fe(III) oxides, however, remains poorly understood. In the present study, whole cell fractionation and MALDI-TOF-MS/MS techniques were combined to identify a serine protease (SO3800) associated with the S. oneidensis OM. SO3800 contained predicted structural motifs similar to cell surface-associated serine proteases that function as bacterial adhesins in other gram-negative bacteria. The gene encoding SO3800 was deleted from the S. oneidensis genome, and the resulting mutant strain (Delta SO3800) was tested for its ability to adhere to and respire Fe(III) oxides. Delta SO3800 was severely impaired in its ability to adhere to Fe(III) oxides, yet retained wildtype Fe(III) respiratory capability. Laser Doppler velocimetry and cryoetch high-resolution SEM experiments indicated that Delta SO3800 displayed a lower cell surface charge and higher amount of surface-associated exopolysaccharides. Results of this study indicate that S. oneidensis may respire insoluble Fe(III) oxides at a distance, negating the requirement for attachment prior to electron transfer.
C1 [Burns, Justin L.; Ginn, Brian R.; Bates, David J.; Dichristina, Thomas J.] Georgia Inst Technol, Sch Biol, Atlanta, GA 30332 USA.
[Dublin, Steven N.; Taylor, Jeanette V.; Apkarian, Robert P.] Emory Univ, Robert P Apkarian Integrated Electron Microscopy, Atlanta, GA 30322 USA.
[Amaro-Garcia, Samary] Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA.
RP Dichristina, TJ (reprint author), Georgia Inst Technol, Sch Biol, Atlanta, GA 30332 USA.
EM thomas.dichristina@biology.gatech.edu
RI Neal, Andrew/C-7596-2011
FU Department of Energy; National Science Foundation
FX This work was supported by the Department of Energy and The National
Science Foundation.
NR 47
TC 17
Z9 19
U1 1
U2 29
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
EI 1520-5851
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 68
EP 73
DI 10.1021/es9018699
PG 6
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000016
PM 20039735
ER
PT J
AU Wang, YH
Morin, G
Ona-Nguema, G
Juillot, F
Guyot, F
Calas, G
Brown, GE
AF Wang, Yuheng
Morin, Guillaume
Ona-Nguema, Georges
Juillot, Farid
Guyot, Francois
Calas, Georges
Brown, Gordon E., Jr.
TI Evidence for Different Surface Speciation of Arsenite and Arsenate on
Green Rust: An EXAFS and XANES Study
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID MINERALIZATION PATHWAYS; CRYSTAL-STRUCTURE; GAMMA-FEOOH; IRON;
LEPIDOCROCITE; SORPTION; FERRIHYDRITE; ADSORPTION; BIOREDUCTION; AS(III)
AB The knowledge of arsenic speciation at the surface of green rusts (GRs), (Fe((1-x))(II)Fe(x)(III)(OH)(2)](x+) (CO(3), Cl, SO(4))(x-), is environmentally relevant because arsenic sorption onto US could contribute to arsenic retention in anoxic environments (hydromorphic soils, marine sediments, etc.). The nature of arsenic adsorption complexes on hydroxychloride green rust I (GR1CI) at near-neutral pH under anoxic conditions was investigated using extended X-ray absorption fine structure (EXAFS) spectroscopy at the As K-edge. Sorption data indicate that As(V) sorbs more efficiently than As(Ill) at the studied As loadings (0.27 mu mol m(-2) and 2.7 mu mol m(-2)). EXAFS results indicate that arsenite [As(1101 and arsenate [As(V)] form inner-sphere complexes on the surface of GR1Cl at arsenic surface coverages of 0.27 and 2.70 mu mol m(-2), with distinct types of As(Ill) and As(V) sorption complexes, which change in relative concentration as a function of arsenic loading. For As(V), the EXAFS-derived As-Fe distances (3.34 +/- 0.02 and 3.49 +/- 0.02 angstrom) suggest the presence of binuclear bidentate double-corner complexes ((2)C) and monodentate mononuclear corner-sharing complexes ((1)V). For As(III), EXAFS-derived As-As distance (3.32 +/- 0.02 A) and As-Fe distances (3.49 +/- 0.02 and 4.72 +/- 0.02 A) are consistent with the presence of dimers of As(Ill) pyramids binding to the edges of the GR1Cl layers by corner sharing with FeO(6) octahedra. However, 2 C and (1)V As(Ill) complexes cannot be excluded. These results improve our knowledge of the mode of As(V) and As(III) inner-sphere adsorption on green rusts, which will help to constrain sorption modeling of arsenic in soils, sediments, and aquifers.
C1 [Wang, Yuheng; Morin, Guillaume; Ona-Nguema, Georges; Juillot, Farid; Guyot, Francois; Calas, Georges] Univ Paris 07 UPD, Univ Paris 06 UPMC, CNRS, IMPMC,IPGP,UMR 7590, F-75015 Paris, France.
[Brown, Gordon E., Jr.] Stanford Univ, Dept Geol & Environm Sci, Surface & Aqueous Geochem Grp, Stanford, CA 94305 USA.
[Brown, Gordon E., Jr.] Natl Accelerator Lab, SLAC, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA.
RP Wang, YH (reprint author), Univ Paris 07 UPD, Univ Paris 06 UPMC, CNRS, IMPMC,IPGP,UMR 7590, 140 Rue Lourmel, F-75015 Paris, France.
EM yuheng.wang@impmc.jussieu.fr
RI Calas, Georges/B-2445-2012; Wang, Yuheng/K-3988-2012; GUYOT,
Francois/C-3824-2016; JUILLOT, Farid/G-7943-2016; IMPMC,
Geobio/F-8819-2016
OI Calas, Georges/0000-0003-0525-5734; Wang, Yuheng/0000-0002-1786-5970;
GUYOT, Francois/0000-0003-4622-2218;
FU ECCO/ECODYN CNRS/INSU Program; ACI/FNS [3033]; SESAME IdF [1775];
NSF-EMSI [CHE-0431425]
FX The authors are indebted to the SSRL staff, especially John R. Bargar,
Joe Rogers, and Samuel Webb as well as the SSRL Biotechnology Group, for
their technical assistance during the XAS experiments. The four
anonymous referees are acknowledged for their constructive comments that
improved the quality of the manuscript, This work was supported by the
ECCO/ECODYN CNRS/INSU Program, ACI/FNS Grant 3033, SESAME IdF Grant
1775, and NSF-EMSI Grant CHE-0431425 (Stanford Environmental Molecular
Science Institute). This is IPGP contribution #2561.
NR 37
TC 46
Z9 47
U1 6
U2 68
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 109
EP 115
DI 10.1021/es901627e
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000022
PM 20039740
ER
PT J
AU Ilton, ES
Boily, JF
Buck, EC
Skomurski, FN
Rosso, KM
Cahill, CL
Bargar, JR
Felmy, AR
AF Ilton, Eugene S.
Boily, Jean-Francois
Buck, Edgar C.
Skomurski, Frances N.
Rosso, Kevin M.
Cahill, Christopher L.
Bargar, John R.
Felmy, Andrew R.
TI Influence of Dynamical Conditions on the Reduction of U-VI at the
Magnetite-Solution Interface
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID PENTAVALENT URANIUM; SURFACE; URANYL; SPECTROSCOPY; OXIDES; UO2;
PARAMETERS; COMPLEXES; HEMATITE; U(VI)
AB The heterogeneous reduction of U-VI to U-IV by ferrous iron is believed to be a key process influencing the fate and transport of U in the environment The reactivity of both sorbed and structural Fe-II has been studied for numerous substrates, including magnetite. Published results from U-VI-magnetite experiments have been variable, ranging from no reduction to clear evidence for the formation of U-IV. In this contribution, we used XAS and high resolution (+/- cryogenic) XPS to study the interaction of U-VI with nanoparticulate magnetite. The results indicated that U-VI was partially reduced to U-V with no evidence of U-IV. However, thermodynamic calculations indicated that U phases with average oxidation states below (V) should have been stable, indicating that the system was not in redox equilibrium. A reaction pathway that involves incorporation and stabilization of U-V and U-VI into secondary phases is invoked to explain the observations. The results suggest an important and previously unappreciated role of U-V in the fate and transport of uranium in the environment
C1 [Ilton, Eugene S.; Buck, Edgar C.; Skomurski, Frances N.; Rosso, Kevin M.; Felmy, Andrew R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Boily, Jean-Francois] Umea Univ, SE-90187 Umea, Sweden.
[Cahill, Christopher L.] George Washington Univ, Washington, DC 20052 USA.
[Bargar, John R.] Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA.
RP Ilton, ES (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA.
EM Eugene.Ilton@PNL.gov
RI Buck, Edgar/D-4288-2009; Buck, Edgar/N-7820-2013
OI Buck, Edgar/0000-0001-5101-9084
FU DoE-OBES Geo-sciences and Chemical Sciences; DOE OBER-ERSP through the
PNNL Science Focus Area
FX Funding for this project was provided by DoE-OBES Geo-sciences and
Chemical Sciences, and DOE OBER-ERSP through the PNNL Science Focus
Area. Portions of this research were carried out at the Stanford
Synchrotron Radiation Laboratory and the Environmental Molecular
Sciences Laboratory at PNNL, national user facfiities respectively
operated by Stanford University on behalf of the U.S. DOE, OBES and by
Battelle on behalf of the U.S. DOE, OBER.
NR 33
TC 55
Z9 55
U1 9
U2 61
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 170
EP 176
DI 10.1021/es9014597
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000031
PM 20039748
ER
PT J
AU Kelly, SD
Wu, WM
Yang, F
Criddle, CS
Marsh, TL
O'Loughlin, EJ
Ravel, B
Watson, D
Jardine, PM
Kemner, KM
AF Kelly, Shelly D.
Wu, Wei-Min
Yang, Fan
Criddle, Craig S.
Marsh, Terence L.
O'Loughlin, Edward J.
Ravel, Bruce
Watson, David
Jardine, Philip M.
Kemner, Kenneth M.
TI Uranium Transformations in Static Microcosms
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID CONTAMINATED SUBSURFACE SEDIMENTS; SULFATE-REDUCING CONDITIONS; IN-SITU
BIOSTIMULATION; MICROBIAL COMMUNITIES; REDUCTION; BIOREDUCTION;
REOXIDATION; BIOREMEDIATION; AQUIFER; U(VI)
AB Elucidation of complex biogeochemical processes and their effects on speciation of U in the subsurface is critical for developing remediation strategies with an understanding of stability. We have developed static microcosms that are similar to bioreduction process studies in situ under laminar flow conditions or in sediment pores. Uranium L(3)-edge X-ray absorption near-edge spectroscopy analysis with depth in the microcosms indicated that transformation of U(VI) to U(IV) occurred by at least two distinct processes. Extended X-ray absorption fine structure (EXAFS) analysis indicated that initial U(VI) species associated with C- and P-containing ligands were transformed to U(IV) in the form of uraninite and U associated with Fe-bound ligands. Microbial community analysis identified putative Fe(III) and sulfate reducers at two different depths in the microcosms. The slow reduction of U(VI) to U(IV) may contribute the stability of U(IV) within microcosms at 11 months after a decrease in bioreducing conditions due to limited electron donors.
C1 [Kelly, Shelly D.; O'Loughlin, Edward J.; Ravel, Bruce; Kemner, Kenneth M.] Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
[Wu, Wei-Min; Criddle, Craig S.] Stanford Univ, Dept Civil & Environm Engn, Stanford, CA 94305 USA.
[Yang, Fan; Marsh, Terence L.] Michigan State Univ, E Lansing, MI 48824 USA.
[Watson, David; Jardine, Philip M.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
RP Kelly, SD (reprint author), EXAFS Anal, Bolingbrook, IL 60440 USA.
EM skelly@anl.gov
RI O'Loughlin, Edward/C-9565-2013; ID, MRCAT/G-7586-2011; Watson,
David/C-3256-2016
OI O'Loughlin, Edward/0000-0003-1607-9529; Watson,
David/0000-0002-4972-4136
FU DOE Office of Science, Office of Biological and Environmental Research,
Environmental Remediation Sciences Program [DE-AC02-06CH11357]; MRCAT
FX This work was supported under Contract DE-AC02-06CH11357 by the DOE
Office of Science, Office of Biological and Environmental Research,
Environmental Remediation Sciences Program. MRCAT operations are
supported by DOE and the MRCAT member institutions. The Advanced Photon
Source is supported by the DOE Office of Science, Office of Basic Energy
Sciences. We thank Tonia Mehlhorn and Kenneth Lowe for analysis of
groundwater samples.
NR 39
TC 23
Z9 23
U1 6
U2 28
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 236
EP 242
DI 10.1021/es902191s
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000041
PM 19958005
ER
PT J
AU Chung, E
Kweon, H
Yiacoumi, S
Lee, I
Joy, DC
Palumbo, AV
Tsouris, C
AF Chung, Eunhyea
Kweon, Hyojin
Yiacoumi, Sotira
Lee, Ida
Joy, David C.
Palumbo, Anthony V.
Tsouris, Costas
TI Adhesion of Spores of Bacillus thuringiensis on a Planar Surface
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID ATOMIC-FORCE MICROSCOPY; BACTERIAL ADHESION; CAPILLARY FORCE; CELLS;
QUANTIFICATION; HYDROPHOBICITY; MORPHOGENESIS; POLYSTYRENE; BIOMATERIAL;
POLYAMIDES
AB Adhesion of spores of Bacillus thuringiensis (Bt) and spherical silica particles on surfaces was experimentally and theoretically investigated in this study. Topography analysis via atomic force microscopy (AFM) and electron microscopy indicates that Bt spores are rod shaped, similar to 1.3 mu m in length and similar to 0.8 mu m in diameter. The adhesion force of Bt spores and silica particles on gold-coated glass was measured at various relative humidity (RH) levels by AFM. It was expected that the adhesion force would vary with RH because the individual force components contributing to the adhesion force depend on RH. The adhesion force between a particle and a planar surface in atmospheric environments was modeled as the contribution of three major force components: capillary, van der Waals, and electrostatic interaction forces. Adhesion force measurements for Bt spore (silica particle) and the gold surface system were comparable with calculations. Modeling results show that there is a critical RH value, which depends on the hydrophobicity of the materials involved, below which the water meniscus does not form and the contribution of the capillary force is zero. As RH increases, the van der Waals force decreases while the capillary force increases to a maximum value.
C1 [Chung, Eunhyea; Kweon, Hyojin; Yiacoumi, Sotira; Tsouris, Costas] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Lee, Ida; Joy, David C.] Univ Tennessee, Knoxville, TN 37996 USA.
[Joy, David C.; Palumbo, Anthony V.; Tsouris, Costas] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Tsouris, C (reprint author), Georgia Inst Technol, Atlanta, GA 30332 USA.
EM costas.tsouris@ce.gatech.edu
RI Palumbo, Anthony/A-4764-2011; Tsouris, Costas/C-2544-2016
OI Palumbo, Anthony/0000-0002-1102-3975; Tsouris,
Costas/0000-0002-0522-1027
FU Defense Threat Reduction Agency [HDTRA1-07-1-0035]; UT-Battelle, LLC
[DE-AC05-00OR22725]
FX Support for this work was provided by the Defense Threat Reduction
Agency, under Grant HDTRA1-07-1-0035 to Georgia Institute of Technology.
SEM and STEM experiments were performed at the Center for Nanophase
Materials Sciences of Oak Ridge National Laboratory. Oak Ridge National
Laboratory is managed by UT-Battelle, LLC, for the U.S. Department of
Energy under contract DE-AC05-00OR22725. We are thankful to Mr. Daniel
Velez for editing the manuscript.
NR 29
TC 8
Z9 8
U1 1
U2 18
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 290
EP 296
DI 10.1021/es902070b
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000049
PM 19928904
ER
PT J
AU Peltier, E
van der Lelie, D
Sparks, DL
AF Peltier, Edward
van der Lelie, Daniel
Sparks, Donald L.
TI Formation and Stability of Ni-Al Hydroxide Phases in Soils
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID DISSOLUTION KINETICS; NICKEL; SPECIATION; CLAY; ZN; PYROPHYLLITE; OXIDE;
BIOAVAILABILITY; PRECIPITATION; MINERALS
AB The formation of mixed metal-aluminum hydroxide surface precipitates is a potentially significant uptake route for trace metals (including Co, Ni, and Zn) in environmental systems. This paper investigates the effect of mixed Ni-Al hydroxide precipitate formation and aging on Ni solubility and bioavailability in laboratory contaminated soils. Two Delaware agricultural soils were reacted with a 3 mM Ni solution for 12 months at pH's above and below the threshold for mixed Ni-Al hydroxide formation. Ni speciation was determined at 1, 6, and 12 months using X-ray absorption spectroscopy (XAS). Precipitate solubility was examined through desorption experiments using HNO(3) and EDTA as desorbing agents, whereas metal bioavailability was assessed using a Ni-specific bacterial biosensor. For both soils, the formation of Ni-Al hydroxide surface precipitates resulted in a reduction in the fraction of desorbed and bioavailable Ni. However, precipitate dissolution was greater, particularly with EDTA, than in published studies on isolated soil clay fractions, and less affected by aging processes. These results suggest that mixed Ni-Al hydroxide phases forming in real world environments may be both longer-lasting and more susceptible to ligand-promoted dissolution than previously expected.
C1 [Peltier, Edward] Univ Delaware, Dept Plant & Soil Sci, Environm Soil Chem Res Grp, Newark, DE 19716 USA.
[Peltier, Edward] Univ Delaware, Delaware Environm Inst, Newark, DE 19716 USA.
[Peltier, Edward; van der Lelie, Daniel; Sparks, Donald L.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Peltier, E (reprint author), Univ Kansas, Dept Civil Environm & Architectural Engn, 1530 W 15th St, Lawrence, KS 66045 USA.
EM epeltier@ku.edu
FU E.I. DuPont de Nemours Co.; The Dow Chemical Company; U.S. National
Science Foundation [DMR-9304725]; State of Illinois through the
Department of Commerce and the Board of Higher Education [IBHE HECA NWU
96]; U.S. Department of Energy, Office of Science, Office of Basic
Energy Sciences [DE-AC02-98CH10886, W-31-102-Eng-38]
FX We thank David McNear for supplying EXAFS spectra for selected
references and both David McNear and Ryan Tappero for assistance in
EXAFS data collection. Funding for this project was provided by the U.S.
Environmental Protection Agency through the Center for the Study of
Metals in the Environment at the University of Delaware and by the
Unidel Foundation. XAS work was performed at Beamline XI 1A of the
National Synchrotron Light Source and at Sector 5 of the Advanced Photon
Source (DND-CAT). DND-CAT is supported by the E.I. DuPont de Nemours &
Co., The Dow Chemical Company, the U.S. National Science Foundation
through Grant DMR-9304725 and the State of Illinois through the
Department of Commerce and the Board of Higher Education Grant IBHE HECA
NWU 96. Use of the National Synchrotron Light Source and Advanced Photon
Source was supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract Nos.
DE-AC02-98CH10886 and W-31-102-Eng-38, respectively.
NR 30
TC 17
Z9 17
U1 4
U2 18
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 302
EP 308
DI 10.1021/es902332b
PG 7
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000051
PM 19928986
ER
PT J
AU Luecken, DJ
Waterland, RL
Papasavva, S
Taddonio, KN
Hutzell, WT
Rugh, JP
Andersen, SO
AF Luecken, Deborah J.
Waterland, Robert L.
Papasavva, Stella
Taddonio, Kristen N.
Hutzell, William T.
Rugh, John P.
Andersen, Stephen O.
TI Ozone and TFA Impacts in North America from Degradation of
2,3,3,3-Tetrafluoropropene (HFO-1234yf), A Potential Greenhouse Gas
Replacement
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID TRIFLUOROACETIC-ACID; HALOACETIC ACIDS; ATMOSPHERIC CHEMISTRY;
RISK-ASSESSMENT; OH RADICALS; WATERS; PRECIPITATION; ENVIRONMENT;
CF3CF=CH2; RAIN
AB We use a regional-scale, three-dimensional atmospheric model to evaluate U.S. air quality effects that would result from replacing HFC-134a in automobile air conditioners in the U.S. with HFO-1234yf. Although HFO-1234yf produces tropospheric ozone, the incremental amount is small, averaging less than 0.01% of total ozone formed during the simulation. We show that this production of ozone could be compensated for by a modest improvement in air conditioner efficiency. Atmospheric decomposition of HFO-1234yf produces trifluoroacetic acid MAL which is subject to wet and dry deposition. Deposition and concentrations of TFA are spatially variable due to HFO-1234yf's short atmospheric lifetime, with more localized peaks and less global transport when compared to HFC-134a. Over the 2.5 month simulation, deposition of TFA in the continental U.S. from mobile air conditioners averages 0.24 kg km(-2), substantially higher than previous estimates from all sources of current hydrofluorocarbons. Automobile air conditioning HFO-1234yf emissions are predicted to produce concentrations of TFA in Eastern U.S. rainfall at least double the values currently observed from all sources, natural and man-made. Our model predicts peak concentrations in rainfall of 1264 ng L(-1), a level that is 80x lower than the lowest level considered safe for the most sensitive aquatic organisms.
C1 [Luecken, Deborah J.; Hutzell, William T.] US EPA, Res Triangle Pk, NC 27709 USA.
[Waterland, Robert L.] EI du Pont de Nemours & Co Inc, Wilmington, DE 19880 USA.
[Papasavva, Stella] Stella Papasavva Consulting, Royal Oak, MI 48073 USA.
[Taddonio, Kristen N.; Andersen, Stephen O.] US EPA, Washington, DC USA.
[Rugh, John P.] US DOE, Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Luecken, DJ (reprint author), US EPA, Res Triangle Pk, NC 27709 USA.
EM luecken.deborah@epa.gov
NR 41
TC 29
Z9 29
U1 2
U2 27
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 343
EP 348
DI 10.1021/es902481f
PG 6
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000057
PM 19994849
ER
PT J
AU Lee, JJ
Schultz, IR
AF Lee, Jonathan J.
Schultz, Irvin R.
TI Sex Differences in the Uptake and Disposition of Perfluorooctanoic Acid
in Fathead Minnows after Oral Dosing
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID CARBON-CHAIN LENGTH; ORGANIC ANION; PERFLUOROALKYL ACIDS; FOOD-WEB;
TRANSPORT; RATS; PERFLUOROCARBOXYLATES; 17-BETA-TRENBOLONE;
TOXICOKINETICS; ELIMINATION
AB Perfluorooctanoic acid (PFOA) among other perfluorinated acids is becoming recognized as a ubiquitous environmental contaminant. PFOA is resistant to environmental degradation and appears to undergo no biotransformation in animals. Previous toxicokinetic studies in rodents have indicated that urinary excretion is the most important elimination pathway once PFOA has been absorbed. In some species such as rats, large sex-related differences in urinary excretion have been reported, with females having a much shorter blood or plasma elimination half-life than that of males. It is unknown whether this phenomenon occurs in fish. Therefore, this study determined the disposition of PFOA in male and female fathead minnows (Pimephales promelas) after a single oral dose of PFOA. After dosing, minnows were subsequently euthanized at various times until 336 h postdosing and the PFOA concentration was measured in plasma, gonads, and fish carcass. The concentration-time profiles of PFOA were then analyzed using toxicokinetic methods. The results indicated a clear sex difference in the elimination of PFOA. The plasma elimination half-life of PFOA in female minnows was 6.3 h while in male minnows it was 68.5 h. Pretreatment of female minnows with the synthetic androgen trenbolone substantially delayed the elimination of PFOA, causing the elimination half-life to increase to 25.3 h. In males, pretreatment with the synthetic estrogen ethynylestradiol (EE2) had little effect on PFOA toxicokinetics. These results indicate that the sex differences in PFOA elimination in fathead minnows can at least partially be modulated by exposure to synthetic sex steroids. Whether sex differences in PFOA elimination in minnows is attributable to differences in renal transport activity, as it appears to be for rodents, is unknown at present but clearly warrants further study.
C1 [Lee, Jonathan J.; Schultz, Irvin R.] Marine Sci Lab, Pacific NW Natl Lab, Sequim, WA 98382 USA.
RP Schultz, IR (reprint author), Marine Sci Lab, Pacific NW Natl Lab, 1529 W Sequim Bay Rd, Sequim, WA 98382 USA.
EM ir_chultz@pnl.gov
FU Battelle independent research and development award; U.S. Department of
Energy
FX This research was supported by a Battelle independent research and
development award to I. Schultz. Financial support for J. Lee was
provided by the U.S. Department of Energy's student undergraduate
laboratory intern (SULI) program.
NR 27
TC 19
Z9 20
U1 2
U2 15
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JAN 1
PY 2010
VL 44
IS 1
BP 491
EP 496
DI 10.1021/es901838y
PG 6
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 539PB
UT WOS:000273267000080
PM 19961202
ER
PT J
AU Yang, F
Pecina, DA
Kelly, SD
Kim, SH
Kemner, KM
Long, DT
Marsh, TL
AF Yang, Fan
Pecina, David A.
Kelly, Shelly D.
Kim, Sang-Hoon
Kemner, Kenneth M.
Long, David T.
Marsh, Terence L.
TI Biosequestration via cooperative binding of copper by Ralstonia
pickettii
SO ENVIRONMENTAL TECHNOLOGY
LA English
DT Article
DE copper resistance; extremophile; biosorption; bioaccumulation; genomics
ID ALCALIGENES-EUTROPHUS CH34; HEAVY-METALS; AQUEOUS-SOLUTIONS;
CUPRIAVIDUS-METALLIDURANS; SACCHAROMYCES-CEREVISIAE; TOXIC METALS;
BIOSORPTION; RESISTANCE; REMOVAL; EQUILIBRIUM
AB Ralstonia pickettii isolated from copper-contaminated lake sediment are adapted to high levels of copper after 100 years of selective pressure. Two R. pickettii strains (12D and 12J) were selected for the studies reported herein due to their distinct differences in genomic structure, different metal resistance patterns and carriage of a filamentous phage. Copper sequestration studies revealed that these strains could bind up to 27.44 (12D) and 38.19 (12J) mg copper per g dry weight of cells and that viable cells sequestered more copper than heat-killed cells. Viable cells and heat-killed cells had significantly different saturation binding curves, indicating that one or more unique copper sequestration mechanism(s) was involved in binding by viable cells. Electron microscopy showed alteration of cell outer envelope after cells were grown in the presence of copper, suggesting that the accumulation of copper was membrane associated. X-ray Absorption Near Edge Structure and Extended X-ray Absorption Fine Structure revealed that the copper sequestered was present as Cu(II) and bound to oxygen and/or nitrogen. Recent completion of the genome sequence revealed that an approximately 220 kb region was enriched with metal resistance and transporter genes found in multiple copies. Comparative sequence analysis revealed that several genes may have been derived from horizontal transfer. Hence, rapid adaptation of R. pickettii to high concentrations of metal appears due to robust gene duplication and importation of several types of resistance determinants.
C1 [Pecina, David A.; Marsh, Terence L.] Michigan State Univ, Dept Microbiol & Mol Genet, E Lansing, MI 48824 USA.
[Yang, Fan] Michigan State Univ, Dept Civil & Environm Engn, E Lansing, MI 48824 USA.
[Kelly, Shelly D.; Kemner, Kenneth M.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Kim, Sang-Hoon; Marsh, Terence L.] Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA.
[Long, David T.] Michigan State Univ, Dept Geol Sci, E Lansing, MI 48824 USA.
RP Marsh, TL (reprint author), Michigan State Univ, Dept Microbiol & Mol Genet, E Lansing, MI 48824 USA.
EM marsht@msu.edu
FU U.S. Department of Energy [DE-FG02-01ER63141]; Centre for Microbial
Ecology; Centre for Advanced Microscopy at MSU; Office of Science of the
U.S. Department of Energy [DE-AC02-05CH11231]
FX The work was supported by the Biological and Environmental Research
Program of the U.S. Department of Energy, Grant DE-FG02-01ER63141 (TLM).
We acknowledge the support of Centre for Microbial Ecology and Centre
for Advanced Microscopy at MSU. The assistance and advice from Natasha
Isaacs-Cosgrove, Alicia Pastor and Carol Flegler are much appreciated.
MRCAT operations are supported by DOE and the MRCAT member institutions.
The Advanced Photon Source is supported by the DOE Office of Science,
Office of Basic Energy Sciences. The work conducted by the U. S.
Department of Energy Joint Genome Institute is supported by the Office
of Science of the U.S. Department of Energy under contract No.
DE-AC02-05CH11231. Finally we acknowledge our five reviewers who have
greatly improved our paper. In particular, our thanks to the reviewer
who pointed out the synteny between 12J and pMOL30.
NR 51
TC 8
Z9 8
U1 3
U2 8
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0959-3330
J9 ENVIRON TECHNOL
JI Environ. Technol.
PY 2010
VL 31
IS 8-9
BP 1045
EP 1060
AR PII 923049169
DI 10.1080/09593330.2010.487290
PG 16
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 611AC
UT WOS:000278781700019
PM 20662391
ER
PT J
AU Seifert, U
Speck, T
AF Seifert, U.
Speck, T.
TI Fluctuation-dissipation theorem in nonequilibrium steady states
SO EPL
LA English
DT Article
ID SMALL SYSTEMS; LINEAR-RESPONSE; 2ND LAW; THERMODYNAMICS; EQUILIBRIUM;
VIOLATIONS; EQUALITY; PHYSICS
AB In equilibrium, the fluctuation-dissipation theorem (FDT) expresses the response of an observable to a small perturbation by a correlation function of this variable with another one that is conjugate to the perturbation with respect to energy. For a nonequilibrium steady state (NESS), the corresponding FDT is shown to involve in the correlation function a variable that is conjugate with respect to entropy. By splitting up entropy production into one of the system and one of the medium, it is shown that for systems with a genuine equilibrium state the FDT of the NESS differs from its equilibrium form by an additive term involving total entropy production. A related variant of the FDT not requiring explicit knowledge of the stationary state is particularly useful for coupled Langevin systems. The a priori surprising freedom apparently involved in different forms of the FDT in a NESS is clarified. Copyright (C) EPLA, 2010
C1 [Seifert, U.] Univ Stuttgart, Inst Theoret Phys 2, D-70550 Stuttgart, Germany.
[Speck, T.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Speck, T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Seifert, U (reprint author), Univ Stuttgart, Inst Theoret Phys 2, D-70550 Stuttgart, Germany.
RI Speck, Thomas/F-2624-2012; Physics, Komet/C-9533-2016
OI Speck, Thomas/0000-0002-6357-1180;
FU DFG [SE1119/3-1]; ESF network EPSD; Alexander von Humboldt foundation;
Helios Solar Energy Research Center; Director, Office of Science, Office
of Basic Energy Sciences of the U. S. Department of Energy
[DE-AC02-05CH11231]
FX US acknowledges funding through DFG project SE1119/3-1 and ESF network
EPSD. TS acknowledges funding through Alexander von Humboldt foundation
and the Helios Solar Energy Research Center which is supported by the
Director, Office of Science, Office of Basic Energy Sciences of the U.
S. Department of Energy under Contract No. DE-AC02-05CH11231. We are
grateful to J. MEHL for providing us with fig. 1a).
NR 35
TC 90
Z9 90
U1 5
U2 28
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
J9 EPL-EUROPHYS LETT
JI EPL
PD JAN
PY 2010
VL 89
IS 1
AR 10007
DI 10.1209/0295-5075/89/10007
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 546ZT
UT WOS:000273855100008
ER
PT J
AU Volja, D
Yin, WG
Ku, W
AF Volja, Dmitri
Yin, Wei-Guo
Ku, Wei
TI Charge ordering in half-doped manganites: Weak charge disproportion and
leading mechanisms
SO EPL
LA English
DT Article
ID PHASE-SEPARATION; OXIDES; POLARON; PHYSICS; LAMNO3; STATE; MN
AB The apparent contradiction between the recently observed weak charge disproportion and the traditional Mn3+/Mn4+ picture of the charge-orbital orders in half-doped manganites is resolved by a novel Wannier states analysis of the LDA + U electronic structure. Strong electron itinerancy in this charge-transfer system significantly delocalizes the occupied low-energy "Mn3+" Wannier states such that charge leaks into the "Mn4+"-sites. Furthermore, the leading mechanisms of the charge order are quantified via our first-principles derivation of the low-energy effective Hamiltonian. The electron-electron interaction is found to play a role as important as the electron-lattice interaction. Copyright (C) EPLA, 2010
C1 [Volja, Dmitri; Yin, Wei-Guo; Ku, Wei] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
[Volja, Dmitri; Ku, Wei] SUNY Stony Brook, Dept Phys, Stony Brook, NY 11790 USA.
RP Volja, D (reprint author), Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
EM wyin@bnl.gov; weiku@bnl.gov
RI Yin, Weiguo/A-9671-2014
OI Yin, Weiguo/0000-0002-4965-5329
FU U.S. Department of Energy [DE-AC02-98CH10886]
FX We thank E. DAGOTTO for stimulating discussions and V. FERRARI and P. B.
LITTLEWOOD for clarifying their Hartree-Fock results [ 15]. The work was
supported by U.S. Department of Energy under Contract No.
DE-AC02-98CH10886 and DOE-CMSN.
NR 37
TC 13
Z9 13
U1 1
U2 11
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
J9 EPL-EUROPHYS LETT
JI EPL
PD JAN
PY 2010
VL 89
IS 2
AR 27008
DI 10.1209/0295-5075/89/27008
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 559SR
UT WOS:000274848500031
ER
PT J
AU Wilding, MC
Benmore, CJ
Weber, JKR
AF Wilding, M. C.
Benmore, C. J.
Weber, J. K. R.
TI Changes in the local environment surrounding magnesium ions in fragile
MgO-SiO2 liquids
SO EPL
LA English
DT Article
ID COORDINATION CHANGES; SILICATE-GLASSES; CORE FORMATION; MG2SIO4; MELTS;
EARTH; RELAXATION; VISCOSITY; DIOPSIDE; ENTROPY
AB X-ray diffraction data have been collected in situ for a series of magnesium silicate liquids between and including the two mineral compositions enstatite and forsterite (MgSiO3 and Mg2SiO4). The pair distribution functions obtained from these data show that the local oxygen environment around the magnesium ions contrasts with that found in the equivalent glasses. We identify a transition window between 42 and 38 mole % SiO2 where the average magnesium coordination number changes on cooling from a Mg-O coordination number of similar to 5.1 +/- 0.2 in the liquid state to a value of 4.5 +/- 0.1 in the glass. This change in structure reflects a competition between a sparsely polymerised silicate network and a disordered magnesium framework in the liquid, while the silicate network dominates in the glass. Copyright (C) EPLA, 2010
C1 [Wilding, M. C.] Aberystwyth Univ, Inst Math & Phys Sci, Aberystwyth SY23 3BZ, Ceredigion, Wales.
[Benmore, C. J.; Weber, J. K. R.] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA.
[Weber, J. K. R.] Mat Dev Inc, Arlington Hts, IL 60004 USA.
RP Wilding, MC (reprint author), Aberystwyth Univ, Inst Math & Phys Sci, Aberystwyth SY23 3BZ, Ceredigion, Wales.
EM mbw@aber.ac.uk
OI Benmore, Chris/0000-0001-7007-7749
FU U.S. DOE [DE-AC02-06CH11357]; EPSRC [EP/E026818/1]; Aberystwyth
University
FX The experiments at Argonne National Laboratory were supported by the
U.S. DOE under contract number DE-AC02-06CH11357. Travel to Argonne
National Laboratory has been both an EPSRC overseas travel grant
(EP/E026818/1) and by the Aberystwyth University Senate research Fund.
Electron microprobe analyses of the samples following the levitation
experiments we performed by Dr S. L. Kearns, Department of Earth
Sciences, University of Bristol and we gratefully acknowledge his help
in these compositional analyses.
NR 29
TC 9
Z9 9
U1 2
U2 16
PU EPL ASSOCIATION, EUROPEAN PHYSICAL SOCIETY
PI MULHOUSE
PA 6 RUE DES FRERES LUMIERE, MULHOUSE, 68200, FRANCE
SN 0295-5075
J9 EPL-EUROPHYS LETT
JI EPL
PD JAN
PY 2010
VL 89
IS 2
AR 26005
DI 10.1209/0295-5075/89/26005
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 559SR
UT WOS:000274848500019
ER
PT B
AU Torcellini, P
Pless, S
Lobato, C
Hootman, T
AF Torcellini, Paul
Pless, Shanti
Lobato, Chad
Hootman, Tom
GP ASME
TI MAIN STREET NET-ZERO ENERGY BUILDINGS: THE ZERO ENERGY METHOD IN CONCEPT
AND PRACTICE
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 1
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB Until recently, large-scale, cost-effective net-zero energy buildings (NZEBs) were thought to lie decades in the future. However, ongoing work at the National Renewable Energy Laboratory (NREL) indicates that NZEB status is both achievable and repeatable today. This paper presents a definition framework for classifying NZEBs and a real-life example that demonstrates how a large-scale office building can cost-effectively achieve net-zero energy.
The vision of NZEBs is compelling. In theory, these highly energy-efficient buildings will produce, during a typical year, enough renewable energy to offset the energy they consume from the grid The NREL NZEB definition framework classifies NZEBs according to the criteria being used to judge net-zero status and the way renewable energy is supplied to achieve that status. We use the new U.S. Department of Energy/NREL 220,000-ft(2) Research Support Facilities (RSF) building to illustrate why a clear picture of NZEB definitions is important and how the framework provides a methodology for creating a cost-effective NZEB The RSF, scheduled to open in June 2010, includes contractual commitments to deliver a Leadership in Energy Efficiency and Design (LEED) Platinum Rating, an energy use intensity of 25 kBtu/ft(2) (half that of a typical LEED Platinum office building), and net-zero energy status.
We will discuss the analysis method and cost tradeoffs that were performed throughout the design and build phases to meet these commitments and maintain construction costs at $259/ft(2). We will discuss ways to achieve large-scale, replicable NZEB performance. Many passive and renewable energy strategies are utilized, including full daylighting, high-performance lighting, natural ventilation through operable windows, thermal mass, transpired solar collectors, radiant heating and cooling, and workstation configurations allow for maximum daylighting.
This paper was prepared by the client and design teams, including Paul Torcellini, PhD, PE, Commercial Building Research Group Manager with NREL; Shanti Pless and Chad Lobato, Building Energy Efficiency Research Engineers with NREL, David Okada, PE, LEED AP, Associate with Stantec; and Tom Hootman. ALA, LEED AP, Director of Sustainability with RNL.
C1 [Torcellini, Paul; Pless, Shanti; Lobato, Chad] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Torcellini, P (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
NR 13
TC 1
Z9 1
U1 0
U2 5
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4394-9
PY 2010
BP 1009
EP 1017
PG 9
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO57
UT WOS:000283271100110
ER
PT B
AU Siegel, NP
Livers, S
Miller, JE
Diver, RB
AF Siegel, Nathan P.
Livers, Stephanie
Miller, James E.
Diver, Richard B.
GP ASME
TI CERIUM OXIDE MATERIALS FOR THE SOLAR THERMOCHEMICAL DECOMPOSITION OF
CARBON DIOXIDE
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB We have experimentally investigated the thermochemical decomposition of carbon dioxide using pure cerium oxide fibrous structures Experiments were conducted on-sun with a solar furnace and include two reaction steps: the thermal reduction of CeO alpha to CeO beta between 1500 degrees C and 1600 degrees C, and the re-oxidation of CeO beta to produce carbon monoxide under flowing carbon dioxide at temperatures between 800 degrees C and 1200 degrees C. A ceria-based cycle offers some advantages over similar thermochemical cycles including the reduction of sintering and volatility issues during thermal reduction, a stable crystal structure over the range of operating temperatures, and the ability for all of the material to participate in the thermochemical reactions, i e. there is no inert support. We present experimental results indicating that pure ceria structures perform at a level comparable to ferrite-based structures with respect to material utilization and better than the ferrites with respect to the carbon monoxide production rate during the oxidation step. We also discuss the performance potential of a solar reactor that continuously produces carbon monoxide using ceria in a two-step thermochemical cycle.
C1 [Siegel, Nathan P.; Livers, Stephanie; Miller, James E.; Diver, Richard B.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Siegel, NP (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
RI Miller, James/C-1128-2011
OI Miller, James/0000-0001-6811-6948
NR 13
TC 1
Z9 1
U1 0
U2 4
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 89
EP 95
PG 7
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300011
ER
PT B
AU Diver, RB
Miller, JE
Siegel, NP
Moss, TA
AF Diver, Richard B.
Miller, James E.
Siegel, Nathan P.
Moss, Timothy A.
GP ASME
TI TESTING OF A CR5 SOLAR THERMOCHEMICAL HEAT ENGINE PROTOTYPE
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
ID HYDROGEN-PRODUCTION
AB Sandia National Laboratories (SNL) is investigating thermochemical approaches for reenergizmg CO2 and H2O feed stocks for input to synthetic liquid hydrocarbon fuels production. Key to the approach is the Counter-Rotating-Ring Receiver/Reactor/Recuperator (CR5), a novel solar-driven thermochemical heat engine concept for high-temperature carbon dioxide and water splitting based on two-step, nonvolatile metal oxide thermochemical cycles. The CR5 integrates two reactors, recuperators. and solar receiver and intrinsically separates the product gases. The CR5 thermochemical heat engine concept and the underlying thermodynamics and kinetics have many uncertainties. While results from laboratory scale material tests are promising, they are different than what occurs in a CR5. To evaluate the potential of the CR5 we have designed and built a CR5 prototype. The overall objective of the SNL Sunshine to Petrol (S2P) project is to show a solar thermochemical pathway for the efficient production of liquid fuels from CO2 and H2O feed stocks. To achieve the overall long-term goal of 10% efficient conversion of sunlight to petroleum, the thermochemical solar conversion of sunlight to CO needs to be 20% efficient. The short-term goal for the CR5 prototype is to demonstrate a solar to chemical conversion efficiency of at least 2%. In this paper, we present initial test results for the CR5 prototype in the 16 kW, National Solar Thermal Test Facility (NSTTF) solar furnace in Albuquerque, NM. Lessons learned from the initial tests and approaches for improving performance to achieve our goals are also presented.
C1 [Diver, Richard B.; Miller, James E.; Siegel, Nathan P.; Moss, Timothy A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Diver, RB (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
RI Miller, James/C-1128-2011
OI Miller, James/0000-0001-6811-6948
NR 10
TC 9
Z9 9
U1 0
U2 9
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 97
EP 104
PG 8
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300012
ER
PT B
AU Chen, KS
Hogan, RE
AF Chen, Ken S.
Hogan, Roy E.
GP ASME
TI MODELING SOLAR THERMOCHEMICAL SPLITTING OF CO(2) USING METAL OXIDE AND A
CR5
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB A two-dimensional, multi-physics computational model based on the finite-element method is developed for simulating the process of solar thermochemical splitting of carbon dioxide (CO(2)) using ferrites (Fe(3)O(4)/FeO) and a counter-rotating-ring receiver/recuperator or CR5, in which carbon monoxide (CO) is produced from gaseous CO(2). The model takes into account heat transfer, gas-phase flow and multiple-species diffusion in open channels and through pores of the porous reactant layer, and redox chemical reactions at the gas/solid interfaces. Results (temperature distribution, velocity field, and species concentration contours) computed using the model in a case study are presented to illustrate model utility. The model is then employed to examine the effects of injection rates of CO(2) and argon neutral gas, respectively, on CO production rate and the extent of the product-species crossover.
C1 [Chen, Ken S.; Hogan, Roy E.] Sandia Natl Labs, Engn Sci Ctr, Albuquerque, NM 87185 USA.
RP Chen, KS (reprint author), Sandia Natl Labs, Engn Sci Ctr, POB 5800, Albuquerque, NM 87185 USA.
NR 15
TC 1
Z9 1
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 153
EP 162
PG 10
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300018
ER
PT B
AU Bingham, C
Jorgensen, G
Wylie, A
AF Bingham, Carl
Jorgensen, Gary
Wylie, Amy
GP ASME
TI EXPOSURE OF POLYMERIC GLAZING MATERIALS USING NREL'S ULTRA-ACCELERATED
WEATHERING SYSTEM (UAWS)
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
ID ENGINEERING THERMOPLASTICS
AB NREL's Ultra-Accelerated Weathering System (UAWS) selectively reflects and concentrates natural sunlight ultraviolet irradiance below 475 rim onto exposed samples to provide accelerated weathering of materials while keeping samples within realistic temperature limits.
This paper will explain the design and Implementation of the UAWS which allow it to simulate the effect of years of weathering in weeks of exposure. Exposure chamber design and instrumentation will be discussed for both a prototype UAWS used to test glazing samples as well as a commercial version of UAWS.
Candidate polymeric glazing materials have been subjected to accelerated exposure testing at a light intensity level of up to 50 UV suns for an equivalent outdoor exposure in Miami, FL exceeding 15 years Samples include an Impact modified acrylic, fiberglass, and polycarbonate having several thin UV-screening coatings. Concurrent exposure is carried out for identical sample sets at two different temperatures to allow thermal effects to be quantified along with resistance to UV.
C1 [Bingham, Carl; Jorgensen, Gary] Natl Renewable Energy Lab, Golden, CO USA.
RP Bingham, C (reprint author), Natl Renewable Energy Lab, Golden, CO USA.
NR 12
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 293
EP 299
PG 7
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300035
ER
PT B
AU Christian, JM
Ho, CK
AF Christian, Joshua M.
Ho, Clifford K.
GP ASME
TI FINITE ELEMENT MODELING OF CONCENTRATING SOLAR COLLECTORS FOR EVALUATION
OF GRAVITY LOADS, BENDING, AND OPTICAL CHARACTERIZATION
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB Understanding the effects of gravity and wind loads on concentrating solar power (CSP) collectors is critical for performance calculations and developing more accurate alignment procedures and techniques. This paper presents a rigorous finite-element model of a parabolic trough collector that is used to determine the impact of gravity loads on bending and displacements of the mirror facets and support structure. The geometry of the LUZ LS-2 parabolic trough collector was modeled using SolidWorks, and gravity-induced loading and displacements were simulated in SolidWorks Simulation. The model of the trough collector was evaluated in two positions: the 90 degrees position (mirrors facing upward) and the 0 degrees position (mirrors facing horizontally) The slope errors of the mirror facet reflective surfaces were found by evaluating simulated angular displacements of node-connected segments along the mirror surface The ideal (undeformed) shape of the mirror was compared to the shape of the deformed mirror after gravity loading Also, slope errors were obtained by comparing the deformed shapes between the 90 degrees and 0 degrees positions. The slope errors resulting from comparison between the deformed vs undeformed shape were as high as similar to 2 mrad, depending on the location of the mirror facet on the collector. The slope errors resulting from a change in orientation of the trough from the 90 degrees position to the 0 degrees position with gravity loading were as high as similar to 3 mrad, depending on the location of the facet.
C1 [Christian, Joshua M.; Ho, Clifford K.] Sandia Natl Labs, Solar Technol Dept, Albuquerque, NM 87185 USA.
RP Christian, JM (reprint author), Sandia Natl Labs, Solar Technol Dept, POB 5800, Albuquerque, NM 87185 USA.
EM ckho@sandia.gov
NR 6
TC 1
Z9 1
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 475
EP 481
PG 7
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300060
ER
PT B
AU Khalsa, SSS
Ho, CK
AF Khalsa, Siri Sahib S.
Ho, Clifford K.
GP ASME
TI DEVELOPMENT OF A "SOLAR PATCH" CALCULATOR TO EVALUATE HELIOSTAT-FIELD
IRRADIANCE AS A BOUNDARY CONDITION IN CFD MODELS
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB A rigorous computational fluid dynamics (CFD) approach to calculating temperature distributions, radiative and convective losses, and flow fields in a cavity receiver irradiated by a heliostat field is typically limited to the receiver domain alone for computational reasons A CFD simulation cannot realistically yield a precise solution that includes the details within the vast domain of an entire heliostat field in addition to the detailed processes and features within a cavity receiver. Instead, the incoming, field irradiance can be represented as a boundary condition on the receiver domain. This paper describes a program. the Solar Patch Calculator. written in Microsoft Excel VBA to characterize multiple beams emanating from a "solar patch" located at the aperture of a cavity receiver, in order to represent the incoming irradiance from any field of heliostats as a boundary condition on the receiver domain. This program accounts for cosine losses; receiver location; heliostat reflectivity, areas and locations; field location; time of day and day of year. This paper also describes the implementation of the boundary conditions calculated by this program into a Discrete Ordinates radiation model using Ansys (R) FLUENT (www.fluent.com). and compares the results to experimental data and to results generated by the code DELSOL.
C1 [Khalsa, Siri Sahib S.] Sandia Natl Labs, Sandia Staffing Alliance, Concentrating Solar Technol Dept, Albuquerque, NM 87185 USA.
RP Khalsa, SSS (reprint author), Sandia Natl Labs, Sandia Staffing Alliance, Concentrating Solar Technol Dept, POB 5800, Albuquerque, NM 87185 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 483
EP 490
PG 8
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300061
ER
PT B
AU Ho, CK
Ghanbari, CM
Diver, RB
AF Ho, Clifford K.
Ghanbari, Cheryl M.
Diver, Richard B.
GP ASME
TI METHODOLOGY TO ASSESS POTENTIAL GLINT AND GLARE HAZARDS FROM
CONCENTRATING SOLAR POWER PLANTS: ANALYTICAL MODELS AND EXPERIMENTAL
VALIDATION
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
ID RADIATION
AB With growing numbers of concentrating solar power systems being designed and developed, glint and glare from concentrating solar collectors and receivers is receiving increased attention as a potential hazard or distraction for motorists, pilots, and pedestrians This paper provides analytical methods to evaluate the irradiance originating from specularly and diffusely reflecting sources as a function of distance and characteristics of the source. Sample problems are provided for both specular and diffuse sources. and validation of the models is performed via testing In addition, a summary of safety metrics is compiled from the literature to evaluate the potential hazards of calculated irradiances from glint and glare. Previous safety metrics have focused on prevention of permanent eye damage (e.g retinal burn) New metrics used in this paper account for temporary flash blindness, which can occur at irradiance values several orders of magnitude lower than the irradiance values required for irreversible eye damage
C1 [Ho, Clifford K.; Ghanbari, Cheryl M.; Diver, Richard B.] Sandia Natl Labs, Concentrating Solar Technol Dept, Albuquerque, NM 87185 USA.
RP Ho, CK (reprint author), Sandia Natl Labs, Concentrating Solar Technol Dept, POB 5800, Albuquerque, NM 87185 USA.
EM ckho@sandia.gov
NR 17
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 491
EP 500
PG 10
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300062
ER
PT B
AU Ho, CK
Khalsa, SS
Siegel, NP
AF Ho, Clifford K.
Khalsa, Siri S.
Siegel, Nathan P.
GP ASME
TI ANALYTICAL METHODS TO EVALUATE FLUX DISTRIBUTIONS FROM POINT-FOCUS
COLLECTORS FOR SOLAR FURNACE AND DISH ENGINE APPLICATIONS
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB This paper introduces a new analytical "stretch" function that accurately predicts the flux distribution from on-axis point-focus collectors Different dish sizes and slope errors can be assessed using this analytical function with a ratio of the focal length to collector diameter fixed at 0.6 to yield the maximum concentration ratio. Results are compared to data, and the stretch function is shown to provide more accurate flux distributions than other analytical methods employing cone optics.
C1 [Ho, Clifford K.; Khalsa, Siri S.] Sandia Natl Labs, Solar Technol Dept, Sandia Staffing Alliance, Albuquerque, NM 87185 USA.
RP Ho, CK (reprint author), Sandia Natl Labs, Solar Technol Dept, Sandia Staffing Alliance, POB 5800, Albuquerque, NM 87185 USA.
EM ckho@sandia.gov
NR 6
TC 0
Z9 0
U1 0
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 501
EP 509
PG 9
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300063
ER
PT B
AU Diver, RB
Moss, TA
AF Diver, Richard B.
Moss, Timothy A.
GP ASME
TI TEST RESULTS AND STATUS OF THE TOP ALIGNMENT SYSTEM FOR PARABOLIC TROUGH
SOLAR COLLECTORS
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB Parabolic trough solar power plants produce the lowest cost solar electricity, yet unsubsidized electricity from parabolic trough power plants costs about twice that from conventional sources. To make parabolic trough electricity more competitive, we are developing an innovative approach for rapidly and effectively evaluating the alignment of mirrors in parabolic trough power plants and prescribing corrective actions as needed. The Theoretical Overlay Photographic Collector Alignment Technique (TOPCAT) system could be used during construction, to improve the performance of existing power plants, or for routine maintenance. It is also an enabling technology for higher concentration ratio and lower cost trough solar collector designs needed to make solar electricity more competitive with conventional sources
In this paper a truck-mounted TOPCAT field characterization system is described Test results from mirror alignment of an LS-3 loop in a commercial parabolic trough power plant in southern California are also presented The performance improvements were measured using a comparative calorimetric technique which inherently accounts for variations in Insolation levels, sun incident angle, and mirror and heat collection element (HCE) glass envelope cleanliness Measurements indicate a 3 5% increase in thermal performance of an LS-3 loop aligned with the TOPCAT system Benchmarking results of labor hours and materials show that the TOPCAT system is an extremely cost effective tool for improving the performance of existing parabolic trough power plants
C1 [Diver, Richard B.; Moss, Timothy A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Diver, RB (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 511
EP 517
PG 7
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300064
ER
PT B
AU Andraka, CE
Yellowhair, J
Iverson, BD
AF Andraka, Charles E.
Yellowhair, Julius
Iverson, Brian D.
GP ASME
TI A PARAMETRIC STUDY OF THE IMPACT OF VARIOUS ERROR CONTRIBUTIONS ON THE
FLUX DISTRIBUTION OF A SOLAR DISH CONCENTRATOR
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB Dish concentrators can produce highly concentrated flux for the operation of an engine, a chemical process, or other energy converter The high concentration allows a small aperture to control thermal losses, and permits high temperature processes at the focal point
A variety of optical errors can influence the flux pattern both at the aperture and at the absorber surface Impacts of these errors can be lost energy (intercept losses), aperture compromise (increased size to accommodate flux), high peak fluxes (leading to pain failure or life reduction), and Improperly positioned flux also leading to component failure Optical errors can include small scale facet errors ("waviness"), facet shape errors, alignment (facet pointing) errors, structural deflections, and tracking errors. The errors may be random in nature, or may be systematic
The various sources of errors are often combined in a "root-mean-squared" process to present a single number as an "error budget" However, this approach ignores the fact that various errors can influence the performance in different ways, and can mislead the designer, leading to component damage in a system or poor system performance.
In this paper, we model a hypothetical radial gore dish system using Sandia's CIRCE2 optical code We evaluate the peak flux and incident power through the aperture and onto various parts of the receiver cavity We explore the impact of different error sources on the character of the flux pattern, and demonstrate the limitations of lumping all of the errors into a single error budget
C1 [Andraka, Charles E.; Yellowhair, Julius; Iverson, Brian D.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Andraka, CE (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
NR 14
TC 3
Z9 3
U1 0
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 565
EP 580
PG 16
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300070
ER
PT B
AU Burkhardt, JJ
Heath, G
Turchi, C
AF Burkhardt, John J., III
Heath, Garvin
Turchi, Craig
GP ASME
TI LIFE CYCLE ASSESSMENT OF A MODEL PARABOLIC TROUGH CONCENTRATING SOLAR
POWER PLANT WITH THERMAL ENERGY STORAGE
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB This study evaluates the environmental impacts of a hypothetical 103 megawatt, parabolic trough, wet-cooled concentrating solar power (CSP) plant in the U S Southwest with 6 3 hours of thermal energy storage by means of a hybrid life cycle assessment Life cycle greenhouse gas emissions, cumulative energy demand, and water consumption associated with the manufacture, construction, operation, dismantling, and disposal of the power plant are evaluated and disagaregated by maim systems and components.
The reference CSP plant emits 26 g CO(2eq) per kWh of electrical output across its life cycle, cumulatively demands 0 43 MJ(eq)/kWh of energy, and consumes 4 7 L/kWh of water. The majority of water is consumed by the power block for evaporative cooling. Sensitivity analyses are performed on several key assumptions and design elements the configuration of the thermal energy storage system (i e, thermocline), the heat transfer fluid, the nitrate salts, the cooling system type (m e, dry-cooled) and the energy required for construction and end-of-life dismantling Our base case results are robust to alternative assumptions regarding the heat transfer fluid and energy required for construction and dismantling, however, the total life cycle impacts are strongly influenced by the type of cooling system and nitrate salts employed
C1 [Burkhardt, John J., III; Heath, Garvin] Natl Renewable Energy Lab, Strateg Energy Anal Ctr, Golden, CO USA.
RP Burkhardt, JJ (reprint author), Natl Renewable Energy Lab, Strateg Energy Anal Ctr, Golden, CO USA.
NR 38
TC 1
Z9 1
U1 2
U2 7
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 599
EP 608
PG 10
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300073
ER
PT B
AU Yellowhair, J
Ho, CK
AF Yellowhair, Julius
Ho, Clifford K.
GP ASME
TI HELIOSTAT CANTING AND FOCUSING METHODS: AN OVERVIEW AND COMPARISON
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB A central receiver power tower system consists of a field of heliostats that focus the sunlight onto the receiver on the tower. Heliostats typically consist of an array of mirror facets that track the sun throughout the day. To obtain the optimal concentrated solar flux on the receiver, the individual heliostat facets must be properly canted and focused. Several different methods have been used in the past for facet canting and focusing. These demonstrated methods and some new alignment concepts are under consideration for development and alignment of the 218 heliostats at the Sandia National Laboratories National Solar Thermal Test Facility in Albuquerque, NM In this paper, we provide an overview and comparison of the different methods The methods we consider are the gauge blocks, inclinometers, photogrammetry, fringe reflection, imaging with theoretical image overlays, laser beam projections. camera look-back, and target reflection methods The advantages and disadvantages of each alignment method are identified based on several prescribed criteria for aligning the heliostats. Recommendations regarding the alignment method's potential for efficiently and accurately aligning heliostat fields arc provided.
C1 [Yellowhair, Julius; Ho, Clifford K.] Sandia Natl Labs, Solar Technol Dept, Albuquerque, NM 87185 USA.
RP Yellowhair, J (reprint author), Sandia Natl Labs, Solar Technol Dept, POB 5800, Albuquerque, NM 87185 USA.
EM jeyello@sandia.gov
NR 19
TC 1
Z9 1
U1 1
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 609
EP 615
PG 7
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300074
ER
PT B
AU Wagner, MJ
Kutscher, C
AF Wagner, Michael J.
Kutscher, Charles
GP ASME
TI THE IMPACT OF HYBRID WET/DRY COOLING ON CONCENTRATING SOLAR POWER PLANT
PERFORMANCE
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
DE Concentrating solar power; CSP; water use; Rankine cycle; hybrid
cooling; dry cooling; plant modeling; IPSEpro
AB This paper examines the sensitivity of Rankine cycle plant performance to dry cooling and hybrid (parallel) wet/dry cooling combinations with the traditional wet-cooled model as a baseline. Plants with a lower temperature thermal resource are more sensitive to fluctuations in cooling conditions, and so the lower temperature parabolic trough plant is analyzed to assess the maximum impact of alternative cooling configurations. While low water-use heat rejection designs are applicable to any technology that utilizes a Rankine steam cycle for power generation, they are of special interest to concentrating solar power (CSP) technologies that are located in arid regions with limited water availability. System performance is evaluated using hourly simulations over the course of a year at Daggett, CA
The scope of the analysis in this paper is limited to the power block and the heat rejection system, excluding the solar field and thermal storage. As such, water used in mirror washing, maintenance, etc, is not included. Thermal energy produced by the solar field is modeled using NREL's Solar Advisor Model (SAM).
C1 [Wagner, Michael J.; Kutscher, Charles] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Wagner, MJ (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
NR 7
TC 0
Z9 0
U1 1
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 675
EP 682
PG 8
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300081
ER
PT B
AU Mowers, M
Helm, C
Blair, N
Short, W
AF Mowers, Matthew
Helm, Chris
Blair, Nate
Short, Walter
GP ASME
TI CORRELATIONS BETWEEN GEOGRAPHICALLY DISPERSED CONCENTRATING SOLAR POWER
AND DEMAND IN THE UNITED STATES
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB Correlations between the electricity generated by concentrating solar thermal power (CSP) plants, as well as doss-correlations between CSP, wind power and electricity demand, have significant impacts on decisions for how much and where to build utility-scale CSP capacity, the optimal amount of thermal storage in the CSP plants, reserve capacity needed to back-up the system, as well as the expected levels of curtailed renewable power. Accurately estimating these correlations is vital to performing detailed analyses of high renewable penetration scenarios This study quantifies the degree of correlation between geographically dispersed CSP, as well as the correlation between CSP and wind power, and CSP and electricity demand in 356 discrete regions in the contiguous US Correlations are calculated using hourly data on an annual basis. Maps of the correlations will be presented to illustrate the degree of correlation between solar power and the demand it is serving, as well as the synergies between the negatively-correlated wind power and solar power serving the same region
C1 [Mowers, Matthew; Helm, Chris; Blair, Nate; Short, Walter] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Mowers, M (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM Chnstopher.Helm@nrel.gov; Walter.Short@nrel.gov
NR 5
TC 1
Z9 1
U1 0
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 683
EP 691
PG 9
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300082
ER
PT B
AU Kolb, G
Ho, C
Iverson, B
Moss, T
Siegel, N
AF Kolb, Gregory
Ho, Clifford
Iverson, Brian
Moss, Timothy
Siegel, Nathan
GP ASME
TI FREEZE-THAW TESTS ON TROUGH RECEIVERS EMPLOYING A MOLTEN SALT WORKING
FLUID
SO ES2010: PROCEEDINGS OF ASME 4TH INTERNATIONAL CONFERENCE ON ENERGY
SUSTAINABILITY, VOL 2
LA English
DT Proceedings Paper
CT Proceedings of the ASME 4th International Conference on Energy
Sustainability 2010
CY MAY 17-22, 2010
CL Phoenix, AZ
SP ASME, Adv Energy Syst Div, ASME, Solar Energy Div
AB Several studies predict an economic benefit of using nitrate-based salts instead of the current synthetic oil within a solar parabolic trough field. However. the expected economic benefit can only be realized if the reliability and optical performance of the salt trough system is comparable to today's oil trough. Of primary concern is whether a salt-freeze accident and subsequent thaw will lead to damage of the heat collection elements (HCEs) This topic was investigated by experiments and analytical analysis. Results to date suggest that damage will not occur if the HCEs are not completely filled with salt. However, if the HCE is completely filled at the time of the freeze. the subsequent thaw can lead to plastic deformation and significant bending of the absorber tube.
C1 [Kolb, Gregory; Ho, Clifford; Iverson, Brian; Moss, Timothy; Siegel, Nathan] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Kolb, G (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4395-6
PY 2010
BP 693
EP 698
PG 6
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRO59
UT WOS:000283271300083
ER
PT S
AU Spafford, K
Meredith, J
Vetter, J
Chen, J
Grout, R
Sankaran, R
AF Spafford, Kyle
Meredith, Jeremy
Vetter, Jeffrey
Chen, Jacqueline
Grout, Ray
Sankaran, Ramanan
BE Lin, HX
Alexander, M
Forsell, M
Knupfer, A
Prodan, R
Sousa, L
Streit, A
TI Accelerating S3D: A GPGPU Case Study
SO EURO-PAR 2009 PARALLEL PROCESSING WORKSHOPS
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 15th International Euro-Par Conference on Parallel Computing
CY AUG 25-28, 2009
CL Delft Univ Technol, Delft, NETHERLANDS
SP Parallel & Distributed Syst Grp
HO Delft Univ Technol
AB The graphics processor (GPU) has evolved into an appealing choice for high performance computing due to its superior memory bandwidth, raw processing power, and flexible programmability. As such, GPUs represent an excellent platform for accelerating scientific applications. This paper explores a methodology for identifying applications which present significant potential for acceleration. In particular, this work focuses on experiences from accelerating S3D, a high-fidelity turbulent reacting flow solver. The acceleration process is examined from a holistic viewpoint, and includes details that arise from different phases of the conversion. This paper also addresses the issue of floating point accuracy and precision on the GPU, a topic of immense importance to scientific computing. Several performance experiments are conducted, and results are presented from the NVIDIA Tesla C1060 GPU. We generalize from our experiences to provide a roadmap for deploying existing scientific applications on heterogeneous GPU platforms.
C1 [Spafford, Kyle; Meredith, Jeremy; Vetter, Jeffrey; Sankaran, Ramanan] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Chen, Jacqueline; Grout, Ray] Sandia Natl Labs, Livermore, CA USA.
RP Spafford, K (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM spaffordkl@ornl.gov; jsmeredith@ornl.gov; vetter@ornl.gov;
jhchen@sandia.gov; rwgrout@sandia.gov; sankaranr@ornl.gov
RI Sankaran, Ramanan/D-9254-2015
OI Sankaran, Ramanan/0000-0002-5352-9915
NR 16
TC 6
Z9 6
U1 0
U2 15
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-14121-8
J9 LECT NOTES COMPUT SC
PY 2010
VL 6043
BP 122
EP +
PG 3
WC Computer Science, Theory & Methods
SC Computer Science
GA BQT36
UT WOS:000281786300013
ER
PT S
AU Furlinger, K
Skinner, D
AF Fuerlinger, Karl
Skinner, David
BE Lin, HX
Alexander, M
Forsell, M
Knupfer, A
Prodan, R
Sousa, L
Streit, A
TI Capturing and Visualizing Event Flow Graphs of MPI Applications
SO EURO-PAR 2009 PARALLEL PROCESSING WORKSHOPS
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 15th International Euro-Par Conference on Parallel Computing
CY AUG 25-28, 2009
CL Delft Univ Technol, Delft, NETHERLANDS
SP Parallel & Distributed Syst Grp
HO Delft Univ Technol
AB A high-level understanding of how an application executes and which performance characteristics it exhibits is essential in many areas of high performance computing, such as application optimization, hardware development, and system procurement.
Tools are needed to help users in uncovering the application characteristics, but current approaches are unsuitable to help develop a structured understanding of program execution akin to flow charts. Profiling tools are efficient in terms of overheads but their way of recording performance data discards temporal information. Tracing preserves all the temporal information but distilling the essential high level structures, such as initialization and iteration phases can be challenging and cumbersome.
We present a technique that extends an existing profiling tool to capture event flow graphs of MPI applications. Event flow graphs try to strike a balance between the abundance of data contained in full traces and the concise information profiling tools can deliver with low overheads.
We describe our technique for efficiently gathering an event flow graph for each process of an MPI application and for combining these graphs into a single application-level flow graph. We explore ways to reduce the complexity of the graphs by collapsing nodes in a step-by-step fashion and present techniques to explore flow graphs interactively.
C1 [Fuerlinger, Karl] Univ Calif Berkeley, Dept EECS, Div Comp Sci, Soda Hall 593, Berkeley, CA 94720 USA.
[Skinner, David] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
RP Furlinger, K (reprint author), Univ Calif Berkeley, Dept EECS, Div Comp Sci, Soda Hall 593, Berkeley, CA 94720 USA.
EM fuerling@eecs.berkeley.edu; deskinner@lbl.gov
OI Furlinger, Karl/0000-0003-0398-4087
NR 5
TC 2
Z9 2
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-14121-8
J9 LECT NOTES COMPUT SC
PY 2010
VL 6043
BP 218
EP +
PG 3
WC Computer Science, Theory & Methods
SC Computer Science
GA BQT36
UT WOS:000281786300023
ER
PT S
AU Spafford, K
Meredith, J
Vetter, J
AF Spafford, Kyle
Meredith, Jeremy
Vetter, Jeffrey
BE DAmbra, P
Guarracino, M
Talia, D
TI Maestro: Data Orchestration and Tuning for OpenCL Devices
SO EURO-PAR 2010 - PARALLEL PROCESSING, PART II
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 16th International Euro-Par Conference on Parallel Processing
CY AUG 31-SEP 03, 2010
CL Ischia, ITALY
AB As heterogeneous computing platforms become more prevalent, the programmer must account for complex memory hierarchies in addition to the difficulties of parallel programming. OpenCL is an open standard for parallel computing that helps alleviate this difficulty by providing a portable set of abstractions for device memory hierarchies. However, OpenCL requires that the programmer explicitly controls data transfer and device synchronization, two tedious and error-prone tasks. This paper introduces Maestro, an open source library for data orchestration on OpenCL devices. Maestro provides automatic data transfer, task decomposition across multiple devices, and autotuning of dynamic execution parameters for some types of problems.
C1 [Spafford, Kyle; Meredith, Jeremy; Vetter, Jeffrey] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Spafford, K (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM spaffordkl@ornl.gov; jsmeredith@ornl.gov; vetter@ornl.gov
NR 10
TC 8
Z9 8
U1 0
U2 5
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-15290-0
J9 LECT NOTES COMPUT SC
PY 2010
VL 6272
BP 275
EP 286
PN II
PG 12
WC Computer Science, Hardware & Architecture; Computer Science, Theory &
Methods
SC Computer Science
GA BRM57
UT WOS:000283106500026
ER
PT S
AU Sancho, JC
Kerbyson, DJ
Lang, M
AF Carlos Sancho, Jose
Kerbyson, Darren J.
Lang, Michael
BE DAmbar, P
Guarracino, M
Talia, D
TI Characterizing the Impact of Using Spare-Cores on Application
Performance
SO EURO-PAR 2010 PARALLEL PROCESSING, PT I
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 16th International Euro-Par Conference on Parallel Processing
CY AUG 31-SEP 03, 2010
CL Ischia, ITALY
SP Natl Res Council Italy, High Performance Comp & Networking Inst
AB Increased parallelism on a single processor is driving improvements in peak-performance at both the node and system levels. However achievable performance, in particular from production scientific applications, is not always directly proportional to the core count. Performance is often limited by constraints in the memory hierarchy and also by a node inter-connectivity. Even on state-of-the-art processors, containing between four and eight cores, many applications cannot take full advantage of the compute-performance of all cores. This trend is expected to increase on future processors as the core count per processor increases. In this work we characterize the use of spare-cores, cores that do not provide any improvements in application performance, on current multi-core processors. By using a pulse-width modulation method, we examine the possible performance profile of using a spare-core and quantify under what situations its use will not impact application performance. We show that, for current AMD and Intel multi-core processors, spare-cores can be used for substantial computational tasks but can impact application performance when using shared caches or when significantly accessing main memory.
C1 [Carlos Sancho, Jose] Barcelona Supercomp Ctr, Barcelona 08034, Spain.
[Kerbyson, Darren J.] Pacific NorthWest Natl Lab, Richland, WA 99352 USA.
[Lang, Michael] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Sancho, JC (reprint author), Barcelona Supercomp Ctr, Barcelona 08034, Spain.
EM jsancho@bsc.es; Darren.Kerbyson@pnl.gov; mlang@lanl.gov
RI Sancho, Jose Carlos/B-3125-2016
OI Sancho, Jose Carlos/0000-0002-6917-9155
FU Advanced Simulation and Computing program; Office of Science of the
Department of Energy; Los Alamos National Security, LLC for the US
Department of Energy [DEAC52 06NA25396]
FX This work was funded in part by the Advanced Simulation and Computing
program and the Office of Science of the Department of Energy.Los Alamos
is operated by the Los Alamos National Security, LLC for the US
Department of Energy under contract No.DEAC52 06NA25396.
NR 10
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-15276-4
J9 LECT NOTES COMPUT SC
PY 2010
VL 6271
BP 74
EP +
PN I
PG 2
WC Computer Science, Hardware & Architecture
SC Computer Science
GA BSL13
UT WOS:000284820500008
ER
PT S
AU Singh, K
Curtis-Maury, M
Mckee, SA
Blagojevic, F
Nikolopoulos, DS
de Supinski, BR
Schulz, M
AF Singh, Karan
Curtis-Maury, Matthew
McKee, Sally A.
Blagojevic, Filip
Nikolopoulos, Dimitrios S.
de Supinski, Bronis R.
Schulz, Martin
BE DAmbar, P
Guarracino, M
Talia, D
TI Comparing Scalability Prediction Strategies on an SMP of CMPs
SO EURO-PAR 2010 PARALLEL PROCESSING, PT I
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 16th International Euro-Par Conference on Parallel Processing
CY AUG 31-SEP 03, 2010
CL Ischia, ITALY
SP Natl Res Council Italy, High Performance Comp & Networking Inst
AB Diminishing performance returns and increasing power consumption of single-threaded processors have made chip multiprocessors (CMPs) an industry imperative. Unfortunately, poor software/hardware interaction and bottlenecks in shared hardware structures can prevent scaling to many cores. In fact, adding a core may harm performance and increase power consumption. Given these observations, we compare two approaches to predicting parallel application scalability: multiple linear regression and artificial neural networks (ANNs). We throttle concurrency to levels with higher predicted power/performance efficiency. We perform experiments on a state-of-the-art, dual-processor, quad-core platform, showing that both methodologies achieve high accuracy and identify energy-efficient concurrency levels in multithreaded scientific applications. The ANN approach has advantages, but the simpler regression-based model achieves slightly higher accuracy and performance. The approaches exhibit median error of 7.5% and 5.6%, and improve performance by an average of 7.4% and 9.5%, respectively.
C1 [Singh, Karan] Cornell Univ, Comp Syst Lab, Ithaca, NY 14853 USA.
[Curtis-Maury, Matthew] NetApp Inc, Res Triangle Pk, NC USA.
[McKee, Sally A.] Chalmers, Comp Sci &Engn, Gothenburg, Sweden.
[Blagojevic, Filip] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA USA.
[Nikolopoulos, Dimitrios S.] FORTH, Inst Comp Sci, Haraklion, Greece.
[de Supinski, Bronis R.; Schulz, Martin] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA USA.
RP Singh, K (reprint author), Cornell Univ, Comp Syst Lab, Ithaca, NY 14853 USA.
EM karan@csl.cornell.edu; mcm@netapp.com; mckee@chalmers.se;
fblagojevic@lbl.gov; dsn@ics.forth.gr; bronis@llnl.gov; schulzm@llnl.gov
FU National Science Foundation [CCR-0346867, CCF-0702616, CCF-0715051,
CNS-0521381, CNS-0720750]; Us Department of Energy [DE-FG02-06ER25751,
DE-FG02-05ER25689]; European Commission [FP7-224759, FP7-217068,
FP7-21618, FP6-27648]; IBM; US Department of Energy by Lawrence
Livermore National Laboratory [DE-Ac52-07NA27344]; LLNLCONF [401561]
FX This research is supported by grants from the National Science
Foundation
(CCR-0346867,CCF-0702616,CCF-0715051,CNS-0521381,CNS-0720750,CNS-0720673
), the U.S. Department of Energy (DEFG0206ER25751,DEFG0205ER25689),the
European Commission (FP7-224759, FP7-217068, FP7-216181, FP6-27648),
IBM, andVirginia Tech (VTF-874197). The work presented here was partly
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344
(LLNL-CONF-401561).
NR 17
TC 0
Z9 0
U1 0
U2 2
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-15276-4
J9 LECT NOTES COMPUT SC
PY 2010
VL 6271
BP 143
EP +
PN I
PG 3
WC Computer Science, Hardware & Architecture
SC Computer Science
GA BSL13
UT WOS:000284820500014
ER
PT J
AU Emory, JF
Walworth, MJ
Van Berkel, GJ
Schulz, M
Minarik, S
AF Emory, Joshua F.
Walworth, Matthew J.
Van Berkel, Gary J.
Schulz, Michael
Minarik, Susanne
TI Direct analysis of reversed-phase high-performance thin layer
chromatography separated tryptic protein digests using a liquid
microjunction surface sampling probe/electrospray ionization mass
spectrometry system
SO EUROPEAN JOURNAL OF MASS SPECTROMETRY
LA English
DT Article
DE surface sampling probe; reversed-phase; thin layer chromatography;
HPTLC; peptides; tryptic digest; electrospray; mass spectrometry
ID DESORPTION ELECTROSPRAY-IONIZATION; PEPTIDE IDENTIFICATION;
HPTLC/DESI-MS; PROBE; PROTEOMICS; ANALYTES; PLATES
AB The sampling, ionization and detection of tryptic peptides separated in one-dimension on reversed-phase high-performance thin layer chromatography (HPTLC) plates was performed using liquid microjunction surface sampling probe electrospray ionization mass spectrometry. Tryptic digests of five proteins [cytochrome c, myoglobin, beta-casein, lysozyme and bovine serum albumin (BSA)] were spotted on reversed phase HPTLC RP-8 F254s and HPTLC RP-18 F254s plates. The plates were then developed using 70/30 methanol/water with 0.1 M ammonium acetate. A dual purpose extraction/etectrospray solution containing 70/30/0.1 water/methanol/formic acid was infused through the sampling probe during analysis of the developed lanes. Both full scan mass spectra and data dependent tandem mass spectra were acquired for each development Lane to detect and verify the peptide distributions. Data dependent tandem mass spectra provided both protein identification and sequence coverage information. Highest sequence coverages were achieved for cytochrome c and myoglobin (62.5% and 58.3%, respectively) on reversed phase RP-8 plates. While the tryptic peptides were separated enough for identification, the peptide bands did show some overlap with most peptides Located in the lower half of the development Lane. Proteins whose peptides were more separated gave higher sequence coverage. Larger proteins such as beta-casein and BSA which were spotted in lower relative amounts gave much lower sequence coverage than the smaller proteins.
C1 [Emory, Joshua F.; Walworth, Matthew J.; Van Berkel, Gary J.] Oak Ridge Natl Lab, Organ & Biol Mass Spectrometry Grp, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Walworth, Matthew J.] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
[Schulz, Michael; Minarik, Susanne] Merck KGaA, Thin Layer Chromatog Lab, Performance & Life Sci Chem, D-64293 Darmstadt, Germany.
RP Van Berkel, GJ (reprint author), Oak Ridge Natl Lab, Organ & Biol Mass Spectrometry Grp, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM vanberkelgj@ornl.gov
FU Battelle Memorial Institute; ORNL Technology Transfer and Economic
Development [TTED]; United States Department of Energy
[DE-AC05-00OR22725]
FX This manuscript has been authored by a contractor of the US Government
under contract DE-AC05-00OR22725. Accordingly, the US Government retains
a paid-up, non-exclusive. irrevocable, worldwide license to publish or
reproduce the published form of this contribution, prepare derivative
works, distribute copies to the public, and perform publicly and display
publicly, or allow others to do so, for US Government purposes.; J.F.L.
acknowledges an Oak Ridge National Laboratory (ORNL) appointment through
the ORNL Postdoctoral Research Associates Program. Dr Julian Philips
(Thermo Fisher Scientific] is thanked for the loan of the LCQ DECA mass
spectrometer. Dr Vilmos Kertesz (ORNL) is thanked for help in setting up
the bottom-up peptice/protein data analysis work flow. The MicrclonSpray
head used to fabricate one of the surface sampling probes was provided
through a cooperative research and development agreement (CRADA) with
MDS Sciex (ORNL02-0662). This research was supported by the Battelle
Memorial Institute Technology Maturation Fund. The surface scanning
platform and associated control software used in this study was
developed with support from ORNL Technology Transfer and Economic
Development [TTED] Royalty Funds. ORNL is managed and operated by
UT-Battelle, LLC, for the United States Department of Energy under
contract DE-AC05-00OR22725.
NR 34
TC 11
Z9 11
U1 2
U2 14
PU IM PUBLICATIONS
PI W SUSSEX
PA 6 CHARLTON MILL, CHARLTON, CHICHESTER,, W SUSSEX PO18 0HY, ENGLAND
SN 1469-0667
J9 EUR J MASS SPECTROM
JI Eur. J. Mass Spectrom.
PY 2010
VL 16
IS 1
SI SI
BP 21
EP 33
DI 10.1255/ejms.1041
PG 13
WC Physics, Atomic, Molecular & Chemical; Spectroscopy
SC Physics; Spectroscopy
GA 552KY
UT WOS:000274290200004
PM 20065522
ER
PT J
AU Pellin, MJ
Veryovkin, IV
Levine, J
Zinovev, A
Davis, AM
Stephan, T
Tripa, CE
King, BV
Savina, MR
AF Pellin, Michael J.
Veryovkin, Igor V.
Levine, Jonathan
Zinovev, Alexander
Davis, Andrew M.
Stephan, Thomas
Tripa, C. Emil
King, Bruce V.
Savina, Michael R.
TI Ion microscopy with resonant ionization mass spectrometry:
time-of-flight depth profiling with improved isotopic precision
SO EUROPEAN JOURNAL OF MASS SPECTROMETRY
LA English
DT Article; Proceedings Paper
CT 18th International Mass Spectrometry Conference
CY AUG 29-SEP 04, 2009
CL Bremen, GERMANY
SP German Mass Spectrometry Soc
DE resonant ionization mass spectrometry; isotopic analysis; depth
profiling; useful yield; RIMS; cosmochemistry; isotopic precision;
elemental composition; photoionization
ID DYNAMIC-RANGE; SIMS; DIFFUSION
AB There are four generally mutually exclusive requirements that plague many mass spectrometric measurements of trace constituents: (1) the small size (limited by the depth probed) of many interesting materials requires high useful yields to simply detect some trace elements, (2) the low concentrations of interesting elements require efficient discrimination from isobaric interferences, (3) it is often necessary to measure the depth distribution of elements with high surface and low bulk contributions, and (4) many applications require precise isotopic analysis. Resonant ionization mass spectrometry has made dramatic progress in addressing these difficulties over the past five years.
C1 [Pellin, Michael J.; Veryovkin, Igor V.; Levine, Jonathan; Zinovev, Alexander; Davis, Andrew M.; Stephan, Thomas; Tripa, C. Emil; King, Bruce V.; Savina, Michael R.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Pellin, Michael J.; Veryovkin, Igor V.; Levine, Jonathan; Zinovev, Alexander; Davis, Andrew M.; Stephan, Thomas; Tripa, C. Emil; Savina, Michael R.] Chicago Ctr Cosmochem, Chicago, IL 60637 USA.
[Pellin, Michael J.; Levine, Jonathan; Davis, Andrew M.; Stephan, Thomas] Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA.
[Davis, Andrew M.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[King, Bruce V.] Univ Newcastle, Sch Math & Phys Sci, Callaghan, NSW 2308, Australia.
RP Pellin, MJ (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM pellin@anl.gov
RI Pellin, Michael/B-5897-2008;
OI Pellin, Michael/0000-0002-8149-9768; Davis, Andrew/0000-0001-7955-6236
NR 20
TC 0
Z9 0
U1 0
U2 6
PU IM PUBLICATIONS
PI W SUSSEX
PA 6 CHARLTON MILL, CHARLTON, CHICHESTER,, W SUSSEX PO18 0HY, ENGLAND
SN 1469-0667
J9 EUR J MASS SPECTROM
JI Eur. J. Mass Spectrom.
PY 2010
VL 16
IS 3
SI SI
BP 373
EP 377
DI 10.1255/ejms.1085
PG 5
WC Physics, Atomic, Molecular & Chemical; Spectroscopy
SC Physics; Spectroscopy
GA 618BJ
UT WOS:000279325900014
PM 20530842
ER
PT J
AU Chekanov, S
Derrick, M
Magill, S
Musgrave, B
Nicholass, D
Repond, J
Yoshida, R
Mattingly, MCK
Antonioli, P
Bari, G
Bellagamba, L
Boscherini, D
Bruni, A
Bruni, G
Cindolo, F
Corradi, M
Iacobucci, G
Margotti, A
Nania, R
Polini, A
Antonelli, S
Basile, M
Bindi, M
Cifarelli, L
Contin, A
De Pasquale, S
Sartorelli, G
Zichichi, A
Bartsch, D
Brock, I
Hartmann, H
Hilger, E
Jakob, HP
Jungst, M
Nuncio-Quiroz, AE
Paul, E
Samson, U
Schonberg, V
Shehzadi, R
Wlasenko, M
Brook, NH
Heath, GP
Morris, JD
Kaur, M
Kaur, P
Singh, I
Capua, M
Fazio, S
Mastroberardino, A
Schioppa, M
Susinno, G
Tassi, E
Kim, JY
Ibrahim, ZA
Idris, FM
Kamaluddin, B
Abdullah, WATW
Ning, Y
Ren, Z
Sciulli, F
Chwastowski, J
Eskreys, A
Figiel, J
Galas, A
Olkiewicz, K
Pawlik, B
Stopa, P
Zawiejski, L
Adamczyk, L
Bold, T
Grabowska-Bold, I
Kisielewska, D
Lukasik, J
Przybycien, M
Suszycki, L
Kotanski, A
Slominski, W
Behnke, O
Behr, J
Behrens, U
Blohm, C
Borras, K
Bot, D
Ciesielski, R
Coppola, N
Fang, S
Geiser, A
Gottlicher, P
Grebenyuk, J
Gregor, I
Haas, T
Hain, W
Huttmann, A
Januschek, F
Kahle, B
Katkov, II
Klein, U
Kotz, U
Kowalski, H
Lisovyi, M
Lobodzinska, E
Lohr, B
Mankel, R
Melzer-Pellmann, IA
Miglioranzi, S
Montanari, A
Namsoo, T
Notz, D
Parenti, A
Roloff, P
Rubinsky, I
Schneekloth, U
Spiridonov, A
Szuba, D
Szuba, J
Theedt, T
Tomaszewska, J
Wolf, G
Wrona, K
Yagues-Molina, AG
Youngman, C
Zeuner, W
Drugakov, V
Lohmann, W
Schlenstedt, S
Barbagli, G
Gallo, E
Pelfer, PG
Bamberger, A
Dobur, D
Karstens, F
Vlasov, NN
Bussey, PJ
Doyle, AT
Forrest, M
Saxon, DH
Skillicorn, IO
Gialas, I
Papageorgiu, K
Holm, U
Klanner, R
Lohrmann, E
Perrey, H
Schleper, P
Schorner-Sadenius, T
Sztuk, J
Stadie, H
Turcato, M
Foudas, C
Fry, C
Long, KR
Tapper, AD
Matsumoto, T
Nagano, K
Tokushuku, K
Yamada, S
Yamazaki, Y
Barakbaev, AN
Boos, EG
Pokrovskiy, NS
Zhautykov, BO
Aushev, V
Bachynska, O
Borodin, M
Kadenko, I
Kuprash, O
Libov, V
Lontkovskyi, D
Makarenko, I
Sorokin, I
Verbytskyi, A
Volynets, O
Zolko, M
Son, D
de Favereau, J
Piotrzkowski, K
Barreiro, F
Glasman, C
Jimenez, M
del Peso, J
Ron, E
Terron, J
Uribe-Estrada, C
Corriveau, F
Schwartz, J
Zhou, C
Tsurugai, T
Antonov, A
Dolgoshein, BA
Gladkov, D
Sosnovtsev, V
Stifutkin, A
Suchkov, S
Dementiev, RK
Ermolov, PF
Gladilin, LK
Golubkov, YA
Khein, LA
Korzhavina, IA
Kuzmin, VA
Levchenko, BB
Lukina, OY
Proskuryakov, AS
Shcheglova, LM
Zotkin, DS
Abt, I
Caldwell, A
Kollar, D
Reisert, B
Schmidke, WB
Grigorescu, G
Keramidas, A
Koffeman, E
Kooijman, P
Pellegrino, A
Tiecke, H
Vazquez, M
Wiggers, L
Brummer, N
Bylsma, B
Durkin, LS
Lee, A
Ling, TY
Allfrey, PD
Bell, MA
Cooper-Sarkar, AM
Devenish, RCE
Ferrando, J
Foster, B
Gwenlan, C
Horton, K
Oliver, K
Robertson, A
Walczak, R
Bertolin, A
Dal Corso, F
Dusini, S
Longhin, A
Stanco, L
Brugnera, R
Carlin, R
Garfagnini, A
Limentani, S
Oh, BY
Raval, A
Whitmore, JJ
Iga, Y
D'Agostini, G
Marini, G
Nigro, A
Cole, JE
Hart, JC
Abramowicz, H
Ingbir, R
Kananov, S
Levy, A
Stern, A
Kuze, M
Maeda, J
Hori, R
Kagawa, S
Okazaki, N
Shimizu, S
Tawara, T
Hamatsu, R
Kaji, H
Kitamura, S
Ota, O
Ri, YD
Costa, M
Ferrero, MI
Monaco, V
Sacchi, R
Sola, V
Solano, A
Arneodo, M
Ruspa, M
Fourletov, S
Martin, JF
Stewart, TP
Boutle, SK
Butterworth, JM
Jones, TW
Loizides, JH
Wing, M
Brzozowska, B
Ciborowski, J
Grzelak, G
Kulinski, P
Luzniak, P
Malka, J
Nowak, RJ
Pawlak, JM
Perlanski, W
Zarnecki, AF
Adamus, M
Plucinski, P
Eisenberg, Y
Hochman, D
Karshon, U
Brownson, E
Reeder, DD
Savin, AA
Smith, WH
Wolfe, H
Bhadra, S
Catterall, CD
Cui, Y
Hartner, G
Menary, S
Noor, U
Standage, J
Whyte, J
AF Chekanov, S.
Derrick, M.
Magill, S.
Musgrave, B.
Nicholass, D.
Repond, J.
Yoshida, R.
Mattingly, M. C. K.
Antonioli, P.
Bari, G.
Bellagamba, L.
Boscherini, D.
Bruni, A.
Bruni, G.
Cindolo, F.
Corradi, M.
Iacobucci, G.
Margotti, A.
Nania, R.
Polini, A.
Antonelli, S.
Basile, M.
Bindi, M.
Cifarelli, L.
Contin, A.
De Pasquale, S.
Sartorelli, G.
Zichichi, A.
Bartsch, D.
Brock, I.
Hartmann, H.
Hilger, E.
Jakob, H. -P.
Juengst, M.
Nuncio-Quiroz, A. E.
Paul, E.
Samson, U.
Schoenberg, V.
Shehzadi, R.
Wlasenko, M.
Brook, N. H.
Heath, G. P.
Morris, J. D.
Kaur, M.
Kaur, P.
Singh, I.
Capua, M.
Fazio, S.
Mastroberardino, A.
Schioppa, M.
Susinno, G.
Tassi, E.
Kim, J. Y.
Ibrahim, Z. A.
Idris, F. Mohamad
Kamaluddin, B.
Abdullah, W. A. T. Wan
Ning, Y.
Ren, Z.
Sciulli, F.
Chwastowski, J.
Eskreys, A.
Figiel, J.
Galas, A.
Olkiewicz, K.
Pawlik, B.
Stopa, P.
Zawiejski, L.
Adamczyk, L.
Bold, T.
Grabowska-Bold, I.
Kisielewska, D.
Lukasik, J.
Przybycien, M.
Suszycki, L.
Kotanski, A.
Slominski, W.
Behnke, O.
Behr, J.
Behrens, U.
Blohm, C.
Borras, K.
Bot, D.
Ciesielski, R.
Coppola, N.
Fang, S.
Geiser, A.
Goettlicher, P.
Grebenyuk, J.
Gregor, I.
Haas, T.
Hain, W.
Huettmann, A.
Januschek, F.
Kahle, B.
Katkov, I. I.
Klein, U.
Koetz, U.
Kowalski, H.
Lisovyi, M.
Lobodzinska, E.
Loehr, B.
Mankel, R.
Melzer-Pellmann, I. -A.
Miglioranzi, S.
Montanari, A.
Namsoo, T.
Notz, D.
Parenti, A.
Roloff, P.
Rubinsky, I.
Schneekloth, U.
Spiridonov, A.
Szuba, D.
Szuba, J.
Theedt, T.
Tomaszewska, J.
Wolf, G.
Wrona, K.
Yaguees-Molina, A. G.
Youngman, C.
Zeuner, W.
Drugakov, V.
Lohmann, W.
Schlenstedt, S.
Barbagli, G.
Gallo, E.
Pelfer, P. G.
Bamberger, A.
Dobur, D.
Karstens, F.
Vlasov, N. N.
Bussey, P. J.
Doyle, A. T.
Forrest, M.
Saxon, D. H.
Skillicorn, I. O.
Gialas, I.
Papageorgiu, K.
Holm, U.
Klanner, R.
Lohrmann, E.
Perrey, H.
Schleper, P.
Schoerner-Sadenius, T.
Sztuk, J.
Stadie, H.
Turcato, M.
Foudas, C.
Fry, C.
Long, K. R.
Tapper, A. D.
Matsumoto, T.
Nagano, K.
Tokushuku, K.
Yamada, S.
Yamazaki, Y.
Barakbaev, A. N.
Boos, E. G.
Pokrovskiy, N. S.
Zhautykov, B. O.
Aushev, V.
Bachynska, O.
Borodin, M.
Kadenko, I.
Kuprash, O.
Libov, V.
Lontkovskyi, D.
Makarenko, I.
Sorokin, Iu.
Verbytskyi, A.
Volynets, O.
Zolko, M.
Son, D.
de Favereau, J.
Piotrzkowski, K.
Barreiro, F.
Glasman, C.
Jimenez, M.
del Peso, J.
Ron, E.
Terron, J.
Uribe-Estrada, C.
Corriveau, F.
Schwartz, J.
Zhou, C.
Tsurugai, T.
Antonov, A.
Dolgoshein, B. A.
Gladkov, D.
Sosnovtsev, V.
Stifutkin, A.
Suchkov, S.
Dementiev, R. K.
Ermolov, P. F.
Gladilin, L. K.
Golubkov, Yu. A.
Khein, L. A.
Korzhavina, I. A.
Kuzmin, V. A.
Levchenko, B. B.
Lukina, O. Yu.
Proskuryakov, A. S.
Shcheglova, L. M.
Zotkin, D. S.
Abt, I.
Caldwell, A.
Kollar, D.
Reisert, B.
Schmidke, W. B.
Grigorescu, G.
Keramidas, A.
Koffeman, E.
Kooijman, P.
Pellegrino, A.
Tiecke, H.
Vazquez, M.
Wiggers, L.
Bruemmer, N.
Bylsma, B.
Durkin, L. S.
Lee, A.
Ling, T. Y.
Allfrey, P. D.
Bell, M. A.
Cooper-Sarkar, A. M.
Devenish, R. C. E.
Ferrando, J.
Foster, B.
Gwenlan, C.
Horton, K.
Oliver, K.
Robertson, A.
Walczak, R.
Bertolin, A.
Dal Corso, F.
Dusini, S.
Longhin, A.
Stanco, L.
Brugnera, R.
Carlin, R.
Garfagnini, A.
Limentani, S.
Oh, B. Y.
Raval, A.
Whitmore, J. J.
Iga, Y.
D'Agostini, G.
Marini, G.
Nigro, A.
Cole, J. E.
Hart, J. C.
Abramowicz, H.
Ingbir, R.
Kananov, S.
Levy, A.
Stern, A.
Kuze, M.
Maeda, J.
Hori, R.
Kagawa, S.
Okazaki, N.
Shimizu, S.
Tawara, T.
Hamatsu, R.
Kaji, H.
Kitamura, S.
Ota, O.
Ri, Y. D.
Costa, M.
Ferrero, M. I.
Monaco, V.
Sacchi, R.
Sola, V.
Solano, A.
Arneodo, M.
Ruspa, M.
Fourletov, S.
Martin, J. F.
Stewart, T. P.
Boutle, S. K.
Butterworth, J. M.
Jones, T. W.
Loizides, J. H.
Wing, M.
Brzozowska, B.
Ciborowski, J.
Grzelak, G.
Kulinski, P.
Luzniak, P.
Malka, J.
Nowak, R. J.
Pawlak, J. M.
Perlanski, W.
Zarnecki, A. F.
Adamus, M.
Plucinski, P.
Eisenberg, Y.
Hochman, D.
Karshon, U.
Brownson, E.
Reeder, D. D.
Savin, A. A.
Smith, W. H.
Wolfe, H.
Bhadra, S.
Catterall, C. D.
Cui, Y.
Hartner, G.
Menary, S.
Noor, U.
Standage, J.
Whyte, J.
CA ZEUS Collaboration
TI Measurement of charm and beauty production in deep inelastic ep
scattering from decays into muons at HERA
SO EUROPEAN PHYSICAL JOURNAL C
LA English
DT Article
ID CENTRAL TRACKING DETECTOR; PHYSICS EVENT GENERATION; ZEUS BARREL
CALORIMETER; MONTE-CARLO GENERATOR; H1 VERTEX DETECTOR;
HADRON-COLLISIONS; REAR CALORIMETER; CROSS-SECTIONS; D-ASTERISK; DESIGN
AB The production of charm and beauty quarks in ep interactions has been measured with the ZEUS detector at HERA for squared four-momentum exchange Q(2) > 20 GeV2, using an integrated luminosity of 126 pb(-1). Charm and beauty quarks were identified through their decays into muons. Differential cross sections were measured for muon transverse momenta p(T)(mu) > 1.5 GeV and pseudorapidities - 1.6 < eta(mu) < 2.3, as a function of p(T)(mu), eta(mu), Q(2) and Bjorken x. The charm and beauty contributions to the proton structure function F-2 were also extracted. The results agree with previous measurements based on independent techniques and are well described by QCD predictions.
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[Capua, M.; Fazio, S.; Mastroberardino, A.; Schioppa, M.; Susinno, G.; Tassi, E.] Univ Calabria, Ist Nazl Fis Nucl, I-87036 Cosenza, Italy.
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[de Favereau, J.; Piotrzkowski, K.] Catholic Univ Louvain, Inst Phys Nucl, B-3000 Louvain, Belgium.
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Lund Univ, Lund, Sweden.
RP Chekanov, S (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM tobias.haas@desy.de
RI Doyle, Anthony/C-5889-2009; Wiggers, Leo/B-5218-2015; IBRAHIM, ZAINOL
ABIDIN/C-1121-2010; Fazio, Salvatore /G-5156-2010; WAN ABDULLAH, WAN
AHMAD TAJUDDIN/B-5439-2010; Ferrando, James/A-9192-2012; Gladilin,
Leonid/B-5226-2011; Levchenko, B./D-9752-2012; Proskuryakov,
Alexander/J-6166-2012; Dementiev, Roman/K-7201-2012; Korzhavina,
Irina/D-6848-2012; Tassi, Enrico/K-3958-2015; Suchkov,
Sergey/M-6671-2015; De Pasquale, Salvatore/B-9165-2008; dusini,
stefano/J-3686-2012; Capua, Marcella/A-8549-2015;
OI Doyle, Anthony/0000-0001-6322-6195; Wiggers, Leo/0000-0003-1060-0520;
Ferrando, James/0000-0002-1007-7816; Gladilin,
Leonid/0000-0001-9422-8636; De Pasquale, Salvatore/0000-0001-9236-0748;
dusini, stefano/0000-0002-1128-0664; Capua,
Marcella/0000-0002-2443-6525; Arneodo, Michele/0000-0002-7790-7132;
Longhin, Andrea/0000-0001-9103-9936; Raval, Amita/0000-0003-0164-4337
NR 68
TC 39
Z9 39
U1 3
U2 12
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1434-6044
EI 1434-6052
J9 EUR PHYS J C
JI Eur. Phys. J. C
PD JAN
PY 2010
VL 65
IS 1-2
BP 65
EP 79
DI 10.1140/epjc/s10052-009-1193-x
PG 15
WC Physics, Particles & Fields
SC Physics
GA 534QR
UT WOS:000272912700003
ER
PT J
AU Aamodt, K
Abel, N
Abeysekara, U
Quintana, AA
Acero, A
Adamova, D
Aggarwal, MM
Rinella, GA
Agocs, AG
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Molina, RA
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CA ALICE Collaboration
TI First proton-proton collisions at the LHC as observed with the ALICE
detector: measurement of the charged-particle pseudorapidity density at
root s=900 GeV
SO EUROPEAN PHYSICAL JOURNAL C
LA English
DT Article
ID DUAL-PARTON MODEL; QUARK-GLUON STRINGS; HIGH-ENERGIES; MULTIPLICITY
DISTRIBUTIONS; MULTIHADRON PRODUCTION; HADRON INTERACTIONS; PP
INTERACTIONS; CM ENERGIES; 0.9 TEV; PHYSICS
AB On 23rd November 2009, during the early commissioning of the CERN Large Hadron Collider (LHC), two counter-rotating proton bunches were circulated for the first time concurrently in the machine, at the LHC injection energy of 450 GeV per beam. Although the proton intensity was very low, with only one pilot bunch per beam, and no systematic attempt was made to optimize the collision optics, all LHC experiments reported a number of collision candidates. In the ALICE experiment, the collision region was centred very well in both the longitudinal and transverse directions and 284 events were recorded in coincidence with the two passing proton bunches. The events were immediately reconstructed and analyzed both online and offline. We have used these events to measure the pseudorapidity density of charged primary particles in the central region. In the range vertical bar eta vertical bar < 0.5, we obtain dN(ch)/d eta = 3.10 +/- 0.13(stat.) +/- 0.22(syst.) for all inelastic interactions, and dN(ch)/d eta = 3.51 +/- 0.15(stat.) +/- 0.25(syst.) for nonsingle diffractive interactions. These results are consistent with previous measurements in proton-antiproton interactions at the same centre-of-mass energy at the CERN Sp<(p)over bar>S collider. They also illustrate the excellent functioning and rapid progress of the LHC accelerator, and of both the hardware and software of the ALICE experiment, in this early start-up phase.
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[Badala, A.; Barbera, R.; Blanco, F.; La Rocca, P.; Palmeri, A.; Pappalardo, G. S.; Petta, C.; Pulvirenti, A.; Riggi, F.; Vernet, R.] Sezione Ist Nazl Fis Nucl, Catania, Italy.
[Aggarwal, M. M.; Bhati, A. K.; Kumar, L.; Kumar, N.; Sharma, N.] Panjab Univ, Dept Phys, Chandigarh 160014, India.
[Baldit, A.; Barret, V.; Bastid, N.; Blanc, A.; Crochet, P.; Devaux, A.; Dupieux, P.; Lopez, X.; Manceau, L.; Manso, F.; Rosnet, P.; Saturnini, P.; Vulpescu, B.] Univ Clermont Ferrand, Clermont Univ, CNRS, LPC,IN2P3, Clermont Ferrand, France.
[Anson, C.; Bock, N.; Humanic, T. J.; Kisiel, A.; Lisa, M. A.; Nilsen, B. S.; Truesdale, D.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Bearden, I. G.; Boggild, H.; Christensen, C. H.; Dalsgaard, H. H.; Fenton-Olsen, B.; Gaardhoje, J. J.; Gulbrandsen, K.; Nielsen, B. S.; Nygaard, C.; Sogaard, C.] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
[Bartke, J.; Gladysz-Dziadus, E.; Kornas, E.; Kowalski, M.; Matyja, A.; Rybicki, A.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Krakow, Poland.
[Abeysekara, U.; Cherney, M.; Gorbunov, Y.; Jayananda, K.; Turvey, A.] Creighton Univ, Dept Phys, Omaha, NE 68178 USA.
[Gomez, R.; Leon Monzon, I.; Podesta Lerma, P. L. M.] Univ Autonoma Sinaloa, Culiacan, Mexico.
[Altinpinar, S.; Andronic, A.; Averbeck, R.; Bailhache, R.; Bercuci, A.; Berdermann, E.; Braun-Munzinger, P.; Doenigus, B.; Fasel, M.; Foka, P.; Frankenfeld, U.; Garabatos, C.; Gutbrod, H.; Hernandez, C.; Huber, S.; Ivanov, M.; Malzacher, P.; Marin, A.; Masciocchi, S.; Miskowiec, D.; Otwinowski, J.; Park, W. J.; Schmidt, C.; Schmidt, H. R.; Schwarz, K.; Soyk, D.; Vranic, D.] GSI Helmholtzzentrum Schwerionenforsch, EMMI, Darmstadt, Germany.
[Braun-Munzinger, P.; Kalweit, A.; Kraus, I.; Mager, M.; Oeschler, H.] Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany.
[Bellwied, R.; Cormier, T. M.; Mlynarz, J.; Pavlinov, A.; Pruneau, C. A.; Voloshin, S.] Wayne State Univ, Detroit, MI USA.
[Batyunya, B.; Fedunov, A.; Jancurova, L.; Kutouski, M.; Nomokonov, P.; Pocheptsov, T.; Shabratova, G.; Vala, M.; Vodopianov, A.; Zanevsky, Yu.; Zaporozhets, S.; Zinchenko, A.] Joint Inst Nucl Res, Dubna, Russia.
[Bach, M.; Hutter, D.] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany.
[Antipin, K.; Antonczyk, D.; Appelshaeuser, H.; Arend, A.; Blume, C.; Buesching, H.; Hartig, M.; Kliemant, M.; Kniege, S.; Kramer, F.; Lehnert, J.; Vargas, H. Leon; Pitz, N.; Renfordt, R.; Schuchmann, S.; Sommer, W.; Stock, R.; Ulery, J.] Goethe Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany.
[Bianchi, N.; Capitani, G. P.; Diaz, A. Casanova; Balbastre, G. Conesa; Cunqueiro, L.; Di Nezza, P.; Fantoni, A.; Hasch, D.; Muccifora, V.; Reolon, A. R.; Ronchetti, F.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy.
[Berdnikov, Y.; Ivanov, V.; Khanzadeev, A.; Kryshen, E.; Malaev, M.; Miftakhov, N.; Nikulin, V.; Polyakov, V.; Samsonov, V.; Zalite, A.; Zhalov, M.] Petersburg Nucl Phys Inst, Gatchina, Russia.
[Rinella, G. Aglieri; Anelli, G.; Antinori, F.; Augustinus, A.; Betev, L.; Boccioli, M.; Bruckner, G.; Brun, R.; Buncic, P.; Campbell, M.; Roman, V. Canoa; Carena, F.; Carena, W.; Carminati, F.; Caselle, M.; Cavicchioli, C.; Chapeland, S.; Cheshkov, C.; Barroso, V. Chibante; Chochula, P.; Colla, A.; Costa, F.; de Cataldo, G.; de Groot, J.; Di Mauro, A.; Divia, R.; Dubuisson, J.; Evrard, S.; Fabjan, C. W.; Formenti, F.; Fuchs, U.; Furano, F.; Gheata, A.; Gheata, M.; Grigoras, A.; Grigoras, C.; Grosse-Oetringhaus, J. F.; Hristov, P.; Innocenti, P. G.; Jachokowski, A.; Jirden, L.; Kapusta, S.; Kirsch, S.; Klein-Boesing, C.; Kluge, A.; Lackner, F.; Leistam, L.; Lippmann, C.; Lohn, S.; Makhlyueva, I.; Manzari, V.; Martinengo, P.; Lorenzo, P. Mendez; Meoni, M.; Morsch, A.; Mueller, H.; Musa, L.; Oldenburg, M.; Osmic, F.; Perini, D.; Peters, A. J.; Piuz, F.; Quercigh, E.; Rademakers, A.; Revol, J. -P.; Riedler, P.; Riegler, W.; Rohrich, D.; Rosinsky, P.; Rossegger, S.; Roukoutakis, F.; Safarik, K.; Saiz, P.; da Silva, R. Salgueiro Dominques; Schindler, H.; Schreiner, S.; Schukraft, J.; Shahoyan, R.; Sicking, E.; Soos, C.; Stefanini, G.; Swoboda, D.; Tadel, M.; Taureg, H.; Tauro, A.; Tavlet, M.; Telesca, A.; Toia, A.; de Matos, C. Torcato; Tydesjoe, H.; Vyvre, P. Vande; von Haller, B.; Wallet, L.; Zampolli, C.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Faivre, J.; Furget, C.; Gadrat, S.; Guernane, R.; Kox, S.; Real, J.] Univ Grenoble 1, CNRS, IN2P3, Inst Polytech Grenoble,LPSC, Grenoble, France.
[Abrahantes Quintana, A.; Lopez Torres, E.; Shtejer, K.] CEADEN, Havana, Cuba.
[Abel, N.; Alt, T.; Angelov, V.; Boettger, S.; Breitner, T.; de Cuveland, J.; Gebelein, J.; Gorbunov, S.; Kalcher, S.; Kebschull, U.; Kisel, I.; Lara, C.; Lindenstruth, V.; Painke, F.; Panse, R.; Peschek, J.; Rettig, F.; Steinbeck, T.; Thaeder, J.; Torralba, G.; Troeger, G.; Vassiliev, I.; Zelnicek, P.] Heidelberg Univ, Kirchhoff Inst Phys, Heidelberg, Germany.
[Busch, O.; Constantin, P.; de Gaspari, M.; Emschermann, D.; Glaessel, P.; Grajcarek, R.; Herrmann, N.; Klein, J.; Koch, K.; Krumbhorn, D.; Kweon, M. J.; Perez, J. Mercado; Oyama, K.; Pachmayer, Y.; Radomski, S.; Rusanov, I.; Schicker, R.; Schweda, K.; Soltveit, H. K.; Stachel, J.; Tsiledakis, G.; Vallero, S.; Wang, Y.; Wiechula, J.; Windelband, B.; Yang, H.] Heidelberg Univ, Inst Phys, D-6900 Heidelberg, Germany.
[Chuman, F.; Hiei, A.; Horaguchi, T.; Iwasaki, T.; Maruyama, Y.; Mizoguchi, K.; Okada, Y.; Shigaki, K.; Sugitate, T.; Torii, H.] Hiroshima Univ, Hiroshima, Japan.
[Raniwala, R.; Raniwala, S.] Univ Rajasthan, Dept Phys, Jaipur 302004, Rajasthan, India.
[Bhasin, A.; Gupta, A.; Gupta, R.; Lal, C.; Mahajan, A.; Mangotra, L.; Potukuchi, B.; Sambyal, S.; Sharma, S.; Singh, R.] Univ Jammu, Dept Phys, Jammu 180004, India.
[Aysto, J.; Bondila, M.; Diaz, R.; Kalliokoski, T.; Kim, D. J.; Malkiewicz, T.; Novitzky, N.; Oinonen, M.; Raiha, T. S.; Rak, J.; Rasanen, S.; Sarkamo, J.; Trzaska, W. H.] HIP, Jyvaskyla, Finland.
[Aysto, J.; Bondila, M.; Diaz, R.; Kalliokoski, T.; Kim, D. J.; Malkiewicz, T.; Novitzky, N.; Oinonen, M.; Raiha, T. S.; Rak, J.; Rasanen, S.; Sarkamo, J.; Trzaska, W. H.] Univ Jyvaskyla, Jyvaskyla, Finland.
[Ahn, S. U.; Baek, Y. W.; Jung, H.; Jung, W.; Kang, E.; Kim, D. S.; Kim, D. W.; Kim, H. N.; Kim, J. S.; Kim, M.; Kim, S. H.; Lee, K. S.; Lee, S. C.; Seo, J.] Kangnung Natl Univ, Kangnung, South Korea.
[Borshchov, V.; Listratenko, O.] Sci Res Technol Inst Instrument Engn, Kharkov, Ukraine.
[Bugaev, K.; Grinyov, B.; Zinovjev, G.; Zinovjev, M.] Bogolyubov Inst Theoret Phys, Kiev, Ukraine.
[Hamblen, J.; Martashvili, I.; Read, K. F.] Univ Tennessee, Knoxville, TN USA.
[Bose, S.; Chattopadhyay, S.; Das, I.; Das, S.; Majumdar, A. K. Dutta; Pal, S.; Roy, P.; Sinha, T.] Saha Inst Nucl Phys, Kolkata, India.
[Ahammed, Z.; Chattopadhyay, S.; Dubey, A. K.; Majumdar, M. R. Dutta; Ganti, M. S.; Ghosh, P.; Khan, S. A.; Mohanty, B.; Mondal, M. M.; Muhuri, S.; Nayak, T. K.; Pal, S. K.; Prasad, S. K.; Saini, J.; Samanta, T.; Singaraju, R.; Singhal, V.; Sinha, B. C.; Tribedy, P.] Ctr Variable Energy Cyclotron, Kolkata, India.
[Krawutschke, T.] Fachhsch Koln, Cologne, Germany.
[Kravcakova, A.; Putis, M.; Urban, J.; Vrlakova, J.] Safarik Univ, Fac Sci, Kosice, Slovakia.
[Ban, J.; Kalinak, P.; Kralik, I.; Pastircak, B.; Sandor, L.] Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia.
[Dainese, A.; Ricci, R. A.; Vannucci, L.] Ist Nazl Fis Nucl, Lab Nazl Legnaro, I-35020 Legnaro, Italy.
[Glenn, A.; Newby, J.; Soltz, R.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Christiansen, P.; Dobrin, A.; Gros, P.; Gustafsson, H. -A.; Oskarsson, A.; Osterman, L.; Otterlund, I.; Stenlund, E.] Lund Univ, Div Expt High Energy Phys, Lund, Sweden.
[Cheynis, B.; Ducroux, L.; Grossiord, J. -Y.; Massacrier, L.; Nendaz, F.; Tieulent, R.; Zoccarato, Y.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon, F-69365 Lyon, France.
[Acero, A.; Blanco, F.; Cotallo, M. E.; Gonzalez-Zamora, P.; Ladro de Guevara, P.; Montes, E.; Rubio-Montero, A. J.; Serradilla, E.] CIEMAT, E-28040 Madrid, Spain.
[Camacho, E.; Contreras, J. G.; Crescio, E.; Gago, A.; Herrera Corral, G.; Montano Zetina, L.; Perez, C.; Ramirez Reyes, A.; Zepeda, A.] CINVESTAV, Mexico City 14000, DF, Mexico.
[Cuautle, E.; Diaz, L.; Dominguez, I.; Maldonado Cervantes, I.; Mayani, D.; Ortiz Velazquez, A.; Paic, G.; Peskov, V.; Serkin, L.; Sokolov, O.] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Mexico City 04510, DF, Mexico.
[Aguilar Salazar, S.; Alfaro Molina, R.; Almaraz Avina, E.; Anzo, A.; Arceo, R.; Belmont-Moreno, E.; Gonzalez-Trueba, L. H.; Grabski, V.; Leon, H.; Martinez Davalos, A.; Menchaca-Rocha, A.; Sandoval, A.; Valencia Palomo, L.] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico.
[Guber, F.; Karavicheva, T.; Karpechev, E.; Konevskih, A.; Kurepin, A.; Kurepin, A. N.; Maevskaya, A.; Pshenichnov, I.; Reshetin, A.] Russian Acad Sci, Inst Nucl Res, Moscow, Russia.
[Akindinov, A.; Kaidalov, A. B.; Kiselev, S.; Mal'Kevich, D.; Nedosekin, A.; Polozov, P.; Sharkov, G.; Vetlitskiy, I.; Voloshin, K.; Zagreev, B.] Inst Theoret & Expt Phys, Moscow 117259, Russia.
[Bogdanov, A.; Grigoriev, V.; Kaplin, V.; Kondratyeva, N.; Loginov, V.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Aleksandrov, D.; Blau, D.; Dobretsov, V.; Fokin, S.; Ippolitov, M.; Kazantsev, A.; Kozlov, K.; Kucheriaev, Y.; Manko, V.; Moukhanova, T.; Nianine, A.; Nikolaev, S.; Nikulin, S.; Peressounko, D.; Ryabinkin, E.; Sibiriak, Y.; Vasiliev, A.; Vinogradov, A.; Yasnopolsky, A.; Yushmanov, I.] Russian Res Ctr, Kurchatov Inst, Moscow, Russia.
[Jena, S.; Nandi, B. K.; Nyatha, A.; Pujahari, P.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[Bathen, B.; Baumann, C.; Dietel, T.; Glasow, R.; Gottschlag, H.; Heide, M.; Rammler, M.; Reygers, K.; Santo, R.; Wessels, J.; Wilk, A.] Univ Munster, Inst Kernphys, D-4400 Munster, Germany.
[Aphecetche, L.; Batigne, G.; Benhabib, L.; Bourdaud, G.; del Valle, Z. Conesa; Cussonneau, J.; Delagrange, H.; Dialinas, M.; Estienne, M.; Germain, M.; Ichou, R.; Le Bris, N.; Lefevre, F.; Lenhardt, M.; Luquin, L.; Garcia, G. Martinez; Pillot, P.; Roy, C.; Schutz, Y.; Tournaire, A.; Yermia, F.] Univ Nantes, CNRS, IN2P3, Ecole Mines Nantes,SUBATECH, Nantes, France.
[Aronsson, T.; Bruna, E.; Caines, H.; Harris, J. W.; Heinz, M.; Hicks, B.; Ma, R.; Putschke, J.; Smirnov, N.] Yale Univ, New Haven, CT USA.
[Frolov, A.; Pestov, Y.] Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
[Awes, T. C.; Enokizono, A.; Silvermyr, D.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
[Bimbot, L.; Boyer, B.; Chambert, V.; Charpy, A.; Espagnon, B.; Hadjidakis, C.; Hrivnacova, I.; Lafage, V.; Le Bornec, Y.; Noriega, M. Lopez; Malek, M.; Peyre, J.; Pouthas, J.; Rousseau, S.; Suire, C.; Takaki, J. D. Tapia; Willis, N.] Univ Paris 11, CNRS, IN2P3, IPNO, F-91405 Orsay, France.
[Bianchin, C.; Bombonati, C.; Bortolin, C.; Caffarri, D.; Fabris, D.; Lunardon, M.; Morando, M.; Moretto, S.; Sahoo, R.; Scarlassara, F.; Segato, G.; Soramel, F.; Viesti, G.] Univ Padua, Dipartimento Fis, Padua, Italy.
[Bianchin, C.; Bombonati, C.; Bortolin, C.; Caffarri, D.; Fabris, D.; Grosso, R.; Lunardon, M.; Morando, M.; Moretto, S.; Pepato, A.; Sahoo, R.; Scarlassara, F.; Segato, G.; Soramel, F.; Turrisi, R.; Viesti, G.] Sezione Ist Nazl Fis Nucl, Padua, Italy.
[Bielcik, J.; Kral, J.; Krus, M.; Pachr, M.; Petracek, V.; Pospisil, V.; Smakal, R.; Tlusty, D.; Wagner, V.; Zychacek, V.] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic.
[Mares, J.; Polak, K.; Zavada, P.] Acad Sci Czech Republic, Inst Phys, Prague, Czech Republic.
[Bogolyubsky, M.; Kharlov, Y.; Kim, J.; Polichtchouk, B.; Sadovsky, S.; Soloviev, A.; Stolpovsky, P.; Zenin, A.] Inst High Energy Phys, Protvino, Russia.
[Cortes Maldonado, I.; Fernandez Tellez, A.; Gonzalez Santos, H.; Lopez-Ramirez, R.; Martinez, M. I.; Munoz, J.; Rodriguez Cahuantzi, M.; Roman Lopez, S.; Tejeda Munoz, G.; Vargas, A.; Vergara, S.] Benemerita Univ Autonoma Puebla, Puebla, Mexico.
[Choi, K.; Lee, H.; Son, C. W.; Yi, J.; Yoo, I. -K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Adamova, D.; Bielcikova, J.; Kapitan, J.; Kushpil, S.; Kushpil, V.; Sumbera, M.] Acad Sci Czech Republic, Inst Nucl Phys, Prague, Czech Republic.
[Meddi, F.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Di Liberto, S.; Mazzoni, M. A.; Meddi, F.; Urciuoli, G. M.] Sezione Ist Nazl Fis Nucl, Rome, Italy.
[Baldisseri, A.; Borel, H.; Castellanos, J. Castillo; Hernandez, J. F. Castillo; Charvet, J. L.; Orsini, F.; Pereira, H.; Rakotozafindrabe, A.; Staley, F.] IRFU, Commissariat Energie Atom, Saclay, France.
[De Caro, A.; De Gruttola, D.; De Pasquale, S.; Girard, M. Fusco; Guarnaccia, C.; Pagano, P.; Russo, G.; Virgili, T.] Univ Salerno, Dipartimento Fis ER Caianiello, I-84100 Salerno, Italy.
[De Caro, A.; De Gruttola, D.; De Pasquale, S.; Girard, M. Fusco; Guarnaccia, C.; Pagano, P.; Russo, G.; Virgili, T.] Sezione Ist Nazl Fis Nucl, Salerno, Italy.
[Klay, J. L.] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA.
[Armesto, N.; Ferreiro, E. G.; Pajares, C.; Salgado, C. A.] Univ Santiago de Compostela, Dept Fis Particulas & IGFAE, Santiago De Compostela, Spain.
[de Barros, G. O. V.; Deppman, A.; Figueredo, M. A. S.; Feijo Soares, A. Lozea; Munhoz, M. G.; Suaide, A. A. P.; de Toledo, A. Szanto] Univ Sao Paulo, Sao Paulo, Brazil.
[Basmanov, V.; Budnikov, D.; Demanov, V.; Filchagin, S.; Ilkaev, R.; Kuryakin, A.; Mamonov, A.; Nazarenko, S.; Nazarov, G.; Punin, A.; Punin, V.; Tumkin, A.; Vikhlyantsev, O.; Vinogradov, Y.] Russian Fed Nucl Ctr VNIIEF, Sarov, Russia.
[Han, B. H.; Hwang, D. S.; Kim, J. H.; Kim, S.; Son, H. S.] Sejong Univ, Dept Phys, Seoul, South Korea.
[Bohm, J.; Chang, B.; Kang, J. H.; Kim, M.; Kim, Y.; Kwon, Y.; Song, M.] Yonsei Univ, Seoul 120749, South Korea.
[Gotovac, S.; Mudnic, E.; Vickovic, L.] Tech Univ Split FESB, Split, Croatia.
[Asryan, A.; Braun, M.; Derkach, D.; Feofilov, G.; Ivanov, A.; Kolojvari, A.; Kondratiev, V.; Ochirov, A.; Semenov, D.; Vechernin, V.; Vinogradov, L.; Zarochentsev, A.] St Petersburg State Univ, V Fock Inst Phys, St Petersburg, Russia.
[Belikov, I.; Coffin, J. -P.; Hippolyte, B.; Jangal, S.; Kuhn, C.; Lutz, J. -R.; Maire, A.; Michalon, A.; Ricaud, H.] Univ Strasbourg, CNRS, IN2P3, IPHC, Strasbourg, France.
[Akimoto, R.; Gunji, T.; Hamagaki, H.; Hori, Y.; Okada, K.; Ozawa, K.; Sano, S.; Takahara, A.; Tsuji, T.] Univ Tokyo, Tokyo, Japan.
[Bala, R.; Beole, S.; Bianchi, L.; Biolcati, E.; Bossu, F.; Chiavassa, E.; Cobanoglu, O.; Morales, Y. Corrales; Ferretti, A.; Gagliardi, M.; Gallio, M.; Trapaga, C. Garcia; Luparello, G.; Chiesa, A. Marzari; Masera, M.; Ortona, G.; Padilla, F.; Poggio, F.; Poghosyan, M. G.; Siciliano, M.; Stocco, D.; Vasquez, M. A. Subieta; Vercellin, E.] Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy.
[Alessandro, B.; Arnaldi, R.; Bagnasco, S.; Bala, R.; Beole, S.; Bianchi, L.; Biolcati, E.; Bossu, F.; Cerello, P.; Chiavassa, E.; Cobanoglu, O.; Coli, S.; Morales, Y. Corrales; De Marco, N.; Ferretti, A.; Gagliardi, M.; Gallio, M.; Trapaga, C. Garcia; Giraudo, G.; Giubellino, P.; Luparello, G.; Chiesa, A. Marzari; Masera, M.; Mazza, G.; Mereu, P.; Monteno, M.; Musso, A.; Oppedisano, C.; Ortona, G.; Padilla, F.; Piccotti, A.; Poggio, F.; Poghosyan, M. G.; Prino, F.; Riccati, L.; Rivetti, A.; Scomparin, E.; Siciliano, M.; Stocco, D.; Vasquez, M. A. Subieta; Toscano, L.; Tosello, F.; Vercellin, E.] Sezione Ist Nazl Fis Nucl, Turin, Italy.
[Bosisio, L.; Bregant, M.; Camerini, P.; Cattaruzza, E.; Contin, G.; Margagliotti, G. V.; Rossi, A.; Rui, R.; Venaruzzo, M.] Univ Trieste, Dipartimento Fis, Trieste, Italy.
[Bosisio, L.; Bregant, M.; Camerini, P.; Cattaruzza, E.; Contin, G.; Fragiacomo, E.; Grion, N.; Margagliotti, G. V.; Piano, S.; Rachevski, A.; Rashevskaya, I.; Rossi, A.; Rui, R.; Vacchi, A.; Venaruzzo, M.] Sezione Ist Nazl Fis Nucl, Trieste, Italy.
[Chujo, T.; Miake, Y.; Sakata, D.; Sano, M.; Shimomura, M.; Tanabe, R.; Watanabe, K.; Yokoyama, H.] Univ Tsukuba, Tsukuba, Ibaraki, Japan.
[Chojnacki, M.; Christakoglou, P.; de Haas, A. P.; de Rooij, R.; Grelli, A.; Ivan, C.; Kamermans, R.; Mischke, A.; Nooren, G.; Oskamp, C.; Peitzmann, T.; Simili, E.; van den Brink, A.; van Leeuwen, M.; Verweij, M.] Univ Utrecht, Inst Subatom Phys, Utrecht, Netherlands.
[Deloff, A.; Dobrowolski, T.; Ilkiv, I.; Kurashvili, P.; Redlich, K.; Siemiarczuk, T.; Stefanek, G.; Wilk, G.] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland.
[Kikola, D.; Kupczak, R.; Oleniacz, J.; Ostrowski, P.; Pawlak, T.; Peryt, W.; Pluta, J.; Szuba, M.; Traczyk, T.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Scharenberg, R. P.; Srivastava, B. K.] Purdue Univ, W Lafayette, IN 47907 USA.
[Conner, E. S.; Keidel, R.] Fachhsch Worms, ZTT, Worms, Germany.
[Cai, X.; Ding, H.; Ma, K.; Mao, Y.; Wan, R.; Wang, D.; Wang, Y.; Xu, C.; Yang, C.; Yin, Z.; Yuan, X.; Zhang, X.; Zhou, D.; Zhu, J.] Hua Zhong Normal Univ, Wuhan, Peoples R China.
[Grigoryan, A.; Gulkanyan, H.; Harutyunyan, A.; Hayrapetyan, A.] Yerevan Phys Inst, Yerevan 375036, Armenia.
[Anticic, T.; Nikolic, V.; Susa, T.] Rudjer Boskovic Inst, Zagreb, Croatia.
RP Aamodt, K (reprint author), Univ Oslo, Dept Phys, Oslo, Norway.
EM Jurgen.Schukraft@cern.ch
RI Vinogradov, Leonid/K-3047-2013; van der Kolk, Naomi/M-9423-2016;
Deppman, Airton/J-5787-2014; Zagreev, Boris/R-6460-2016; Inst. of
Physics, Gleb Wataghin/A-9780-2017; Ferreiro, Elena/C-3797-2017;
Armesto, Nestor/C-4341-2017; Ferretti, Alessandro/F-4856-2013; Graciani
Diaz, Ricardo/I-5152-2016; Fernandez Tellez, Arturo/E-9700-2017;
Vickovic, Linda/F-3517-2017; HAMAGAKI, HIDEKI/G-4899-2014; BRAUN,
MIKHAIL/I-6826-2013; Vechernin, Vladimir/J-5832-2013; Adamova,
Dagmar/G-9789-2014; De Pasquale, Salvatore/B-9165-2008; de Cuveland,
Jan/H-6454-2016; Kutouski, Mikalai/I-1555-2016; Kurepin,
Alexey/H-4852-2013; Jena, Satyajit/P-2409-2015; Akindinov,
Alexander/J-2674-2016; Suaide, Alexandre/L-6239-2016; Martinez Davalos,
Arnulfo/F-3498-2013; Wagner, Vladimir/G-5650-2014; Bielcikova,
Jana/G-9342-2014; Blau, Dmitry/H-4523-2012; Yang, Hongyan/J-9826-2014;
Cosentino, Mauro/L-2418-2014; Vacchi, Andrea/C-1291-2010; Bearden,
Ian/M-4504-2014; Sumbera, Michal/O-7497-2014; Kharlov, Yuri/D-2700-2015;
Usai, Gianluca/E-9604-2015; Salgado, Carlos A./G-2168-2015; feofilov,
grigory/A-2549-2013; Traczyk, Tomasz/C-1310-2013; Colla,
Alberto/J-4694-2012; Ramello, Luciano/F-9357-2013; Castillo Castellanos,
Javier/G-8915-2013; Voloshin, Sergei/I-4122-2013; Zarochentsev,
Andrey/J-6253-2013; Kondratiev, Valery/J-8574-2013; Barnafoldi, Gergely
Gabor/L-3486-2013; Guarnaccia, Claudio/N-3000-2013; Levai,
Peter/A-1544-2014; Guber, Fedor/I-4271-2013; Chinellato,
David/D-3092-2012; Barbera, Roberto/G-5805-2012; Cortese,
Pietro/G-6754-2012; SCAPPARONE, EUGENIO/H-1805-2012; Masera,
Massimo/J-4313-2012; Bagnasco, Stefano/J-4324-2012; Gagliardi,
Martino/J-4787-2012; Aglieri Rinella, Gianluca/I-8010-2012; beole',
stefania/G-9353-2012; Turrisi, Rosario/H-4933-2012; Bregant,
Marco/I-7663-2012; Christensen, Christian/D-6461-2012; Peitzmann,
Thomas/K-2206-2012; Takahashi, Jun/B-2946-2012; Deppman,
Airton/F-6332-2010; Felea, Daniel/C-1885-2012; Pshenichnov,
Igor/A-4063-2008; Sevcenco, Adrian/C-1832-2012; Martinez Hernandez,
Mario Ivan/F-4083-2010; Christensen, Christian Holm/A-4901-2010; Haiduc,
Maria /C-5003-2011; Valdiviesso, Gustavo/G-3404-2011; Mitu,
Ciprian/E-6733-2011; Barnby, Lee/G-2135-2010; Mischke, Andre/D-3614-2011
OI Gago Medina, Alberto Martin/0000-0002-0019-9692; Bhasin,
Anju/0000-0002-3687-8179; Vinogradov, Leonid/0000-0001-9247-6230; Riggi,
Francesco/0000-0002-0030-8377; Dainese, Andrea/0000-0002-2166-1874;
Paticchio, Vincenzo/0000-0002-2916-1671; Monteno,
Marco/0000-0002-3521-6333; SANTORO, ROMUALDO/0000-0002-4360-4600;
Scarlassara, Fernando/0000-0002-4663-8216; Turrisi,
Rosario/0000-0002-5272-337X; Tosello, Flavio/0000-0003-4602-1985;
Beole', Stefania/0000-0003-4673-8038; Mohanty,
Bedangadas/0000-0001-9610-2914; van der Kolk, Naomi/0000-0002-8670-0408;
Deppman, Airton/0000-0001-9179-6363; Ferreiro,
Elena/0000-0002-4449-2356; Armesto, Nestor/0000-0003-0940-0783;
Ferretti, Alessandro/0000-0001-9084-5784; Graciani Diaz,
Ricardo/0000-0001-7166-5198; Fernandez Tellez,
Arturo/0000-0003-0152-4220; Vickovic, Linda/0000-0002-9820-7960;
D'Erasmo, Ginevra/0000-0003-3407-6962; BRAUN,
MIKHAIL/0000-0001-7398-7801; Vechernin, Vladimir/0000-0003-1458-8055; De
Pasquale, Salvatore/0000-0001-9236-0748; de Cuveland,
Jan/0000-0003-0455-1398; Kutouski, Mikalai/0000-0002-2920-8775; Kurepin,
Alexey/0000-0002-1851-4136; Jena, Satyajit/0000-0002-6220-6982;
Akindinov, Alexander/0000-0002-7388-3022; Suaide,
Alexandre/0000-0003-2847-6556; Martinez Davalos,
Arnulfo/0000-0002-9481-9548; Cosentino, Mauro/0000-0002-7880-8611;
Vacchi, Andrea/0000-0003-3855-5856; Bearden, Ian/0000-0003-2784-3094;
Sumbera, Michal/0000-0002-0639-7323; Usai, Gianluca/0000-0002-8659-8378;
Salgado, Carlos A./0000-0003-4586-2758; feofilov,
grigory/0000-0003-3700-8623; Traczyk, Tomasz/0000-0002-6602-4094;
Castillo Castellanos, Javier/0000-0002-5187-2779; Zarochentsev,
Andrey/0000-0002-3502-8084; Kondratiev, Valery/0000-0002-0031-0741;
Guarnaccia, Claudio/0000-0002-4014-0679; Guber,
Fedor/0000-0001-8790-3218; Chinellato, David/0000-0002-9982-9577;
Barbera, Roberto/0000-0001-5971-6415; Aglieri Rinella,
Gianluca/0000-0002-9611-3696; Christensen,
Christian/0000-0002-1850-0121; Peitzmann, Thomas/0000-0002-7116-899X;
Takahashi, Jun/0000-0002-4091-1779; Deppman, Airton/0000-0001-9179-6363;
Felea, Daniel/0000-0002-3734-9439; Pshenichnov,
Igor/0000-0003-1752-4524; Sevcenco, Adrian/0000-0002-4151-1056; Martinez
Hernandez, Mario Ivan/0000-0002-8503-3009; Christensen, Christian
Holm/0000-0002-1850-0121; Valdiviesso, Gustavo/0000-0002-0381-3619;
Barnby, Lee/0000-0001-7357-9904;
FU Calouste Gulbenkian Foundation from Lisbon and Swiss Fonds Kidagan,
Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico
(CNPq); Financiadora de Estudos e Projeto (FINEP); Fundacao de Amparo a
Pesquisa do Estado de Sao Paulo (FAPESP); National Natural Science
Foundation of China (NSFC); Chinese Ministry of Education (CMOE);
Ministry of Science and Technology of China (MSTC); Ministry of
Education and Youth of the Czech Republic; Danish National Science
Research Council; Carlsberg Foundation; The European Research Council;
Helsinki Institute of Physics; Academy of Finland; French CNRS
[CNRS-IN2P3]; 'Region Pays de Loire', 'Region Alsace', 'Region
Auvergne'; CEA, France; German BMBF; Helmholtz Association; Hungarian
OTKA; National Office for Research and Technology (NKTH); Department of
Atomic Energy; Department of Science and Technology of the Government of
India; Istituto Nazionale di Fisica Nucleare (INFN) of Italy; MEXT,
Japan; Joint Institute; Korea Foundation for International Cooperation
of Science and Technology (KICOS); CONACYT, DGAPA, Mexico; ALFA-EC and
the HELEN Program; Stichting voor Fundamenteel Onderzoek der Materie
(FOM); Nederlandse Organistie voor Wetenschappelijk Onderzoek (NWO),
Netherlands; Research Council of Norway (NFR); Polish Ministry of
Science and Higher Education; National Authority for Scientific
Research-NASR; Ministry of Education and Science of Russian Federation,
International Science and Technology Center; Russian Federal Agency of
Atomic Energy; Russian Federal Agency for Science and Innovations;
CERN-INTAS; Ministry of Education of Slovakia; CIEMAT, EELA; Ministerio
de Educacion y Ciencia of Spain; Xunta de Galicia; CEADEN, Cubaenergia,
Cuba; IAEA (International Atomic Energy Agency); Swedish Research
Council; Knut & Alice Wallenberg Foundation; Ukraine Ministry of
Education and Science; United Kingdom Science and Technology Facilities
Council (STFC); The United States Department of Energy; United States
National Science Foundation; State of Texas; State of Ohio
FX The ALICE collaboration would like to thank all its engineers and
technicians for their invaluable contributions to the construction of
the experiment. We would like to thank and congratulate the CERN
accelerator teams for the outstanding performance of the LHC complex at
start up, and for providing us with the collisions used for this paper
on such a short notice!; The ALICE collaboration acknowledges the
following funding agencies for their support in building and running the
ALICE detector:; - Calouste Gulbenkian Foundation from Lisbon and Swiss
Fonds Kidagan, Armenia;; - Conselho Nacional de Desenvolvimento
Cientifico e Tecnologico (CNPq), Financiadora de Estudos e Projeto
(FINEP), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP);;
- National Natural Science Foundation of China (NSFC), the Chinese
Ministry of Education (CMOE) and the Ministry of Science and Technology
of China (MSTC);; - Ministry of Education and Youth of the Czech
Republic;; - Danish National Science Research Council and the Carlsberg
Foundation; - The European Research Council under the European
Community's Seventh Framework Programme; - Helsinki Institute of Physics
and the Academy of Finland; - French CNRS-IN2P3, the 'Region Pays de
Loire', 'Region Alsace', 'Region Auvergne' and CEA, France;; - German
BMBF and the Helmholtz Association;; - Hungarian OTKA and National
Office for Research and Technology (NKTH);; - Department of Atomic
Energy and Department of Science and Technology of the Government of
India;; - Istituto Nazionale di Fisica Nucleare (INFN) of Italy;; - MEXT
Grant-in-Aid for Specially Promoted Research, Japan;; - Joint Institute
for Nuclear Research, Dubna;; - Korea Foundation for International
Cooperation of Science and Technology (KICOS);; - CONACYT, DGAPA,
Mexico, ALFA-EC and the HELEN Program (High-Energy physics
Latin-American-European Network);; - Stichting voor Fundamenteel
Onderzoek der Materie (FOM) and the Nederlandse Organistie voor
Wetenschappelijk Onderzoek (NWO), Netherlands;; - Research Council of
Norway (NFR);; - Polish Ministry of Science and Higher Education; -
National Authority for Scientific Research-NASR (Autontatea Nationala
pentru Cercetare Stiintifica-ANCS); - Federal Agency of Science of the
Ministry of Education and Science of Russian Federation, International
Science and Technology Center, Russian Federal Agency of Atomic Energy,
Russian Federal Agency for Science and Innovations and CERN-INTAS;; -
Ministry of Education of Slovakia; - CIEMAT, EELA, Ministerio de
Educacion y Ciencia of Spain, Xunta de Galicia (Conselleria de
Educacion), CEADEN, Cubaenergia, Cuba, and IAEA (International Atomic
Energy Agency); - Swedish Research Council (VR) and Knut & Alice
Wallenberg Foundation (KAW); - Ukraine Ministry of Education and
Science; - United Kingdom Science and Technology Facilities Council
(STFC); - The United States Department of Energy, the United States
National Science Foundation, the State of Texas, and the State of Ohio.
NR 48
TC 105
Z9 109
U1 4
U2 75
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1434-6044
EI 1434-6052
J9 EUR PHYS J C
JI Eur. Phys. J. C
PD JAN
PY 2010
VL 65
IS 1-2
BP 111
EP 125
DI 10.1140/epjc/s10052-009-1227-4
PG 15
WC Physics, Particles & Fields
SC Physics
GA 534QR
UT WOS:000272912700006
ER
PT J
AU Boyce, BL
Lilleodden, ET
Li, X
AF Boyce, B. L.
Lilleodden, E. T.
Li, X.
TI Emerging Methods in Mechanical Behavior
SO EXPERIMENTAL MECHANICS
LA English
DT Editorial Material
C1 [Boyce, B. L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Lilleodden, E. T.] GKSS Forschungszentrum Geesthacht GmbH, Geesthacht, Germany.
[Li, X.] Univ S Carolina, Columbia, SC 29208 USA.
RP Boyce, BL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM blboyce@sandia.gov
RI Boyce, Brad/H-5045-2012
OI Boyce, Brad/0000-0001-5994-1743
NR 0
TC 0
Z9 0
U1 0
U2 10
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0014-4851
J9 EXP MECH
JI Exp. Mech.
PD JAN
PY 2010
VL 50
IS 1
BP 3
EP 3
DI 10.1007/s11340-009-9279-9
PG 1
WC Materials Science, Multidisciplinary; Mechanics; Materials Science,
Characterization & Testing
SC Materials Science; Mechanics
GA 542FW
UT WOS:000273479400001
ER
PT J
AU Padilla, HA
Boyce, BL
AF Padilla, H. A., II
Boyce, B. L.
TI A Review of Fatigue Behavior in Nanocrystalline Metals
SO EXPERIMENTAL MECHANICS
LA English
DT Review
DE Fatigue; Nanocrystalline; Alloy; Ultra-fine grained; Failure
ID HIGH-PRESSURE TORSION; HIGH-CYCLE FATIGUE; SEVERE PLASTIC-DEFORMATION;
NEAR-SURFACE MICROSTRUCTURES; ULTRAFINE-GRAINED METALS; HALL-PETCH
RELATIONSHIP; LASER DEPOSITED NICKEL; PERSISTENT SLIP BANDS;
COLD-SPRAYED ALUMINUM; LOW-STRAIN FATIGUE
AB Nanocrystalline metals have been shown to exhibit unique mechanical behavior, including break-down in Hall-Petch behavior, suppression of dislocation-mediated plasticity, induction of grain boundary sliding, and induction of mechanical grain coarsening. Early research on the fatigue behavior of nanocrystalline metals shows evidence of improved fatigue resistance compared to traditional microcrystalline metals. In this review, experimental and modeling observations are used to evaluate aspects of cyclic plasticity, microstructural stability, crack initiation processes, and crack propagation processes. In cyclic plasticity studies to date, nanocrystalline metals have exhibited strongly rate-dependent cyclic hardening, suggesting the importance of diffusive deformation mechanisms such as grain-boundary sliding. The cyclic deformation processes have also been shown to cause substantial mechanically-induced grain coarsening reminiscent of coarsening observed during large-strain monotonic deformation of nanocrystalline metals. The crack-initiation process in nanocrystalline metals has been associated with both subsurface internal defects and surface extrusions, although it is unclear how these extrusions form when the grain size is below the scale necessary for persistent slip band formation. Finally, as expected, nanocrystalline metals have very little resistance to crack propagation due to limited plasticity and the lack of crack path tortuosity among other factors. Nevertheless, like bulk metallic glasses, nanocrystalline metals exhibit both ductile fatigue striations and metal-like Paris-law behavior. The review provides both a comprehensive critical survey of existing literature and a summary of key areas for further investigation.
C1 [Padilla, H. A., II; Boyce, B. L.] Sandia Natl Labs, Ctr Mat Sci & Engn, Albuquerque, NM 87185 USA.
RP Boyce, BL (reprint author), Sandia Natl Labs, Ctr Mat Sci & Engn, POB 5800,MS0889, Albuquerque, NM 87185 USA.
EM blboyce@sandia.gov
RI Boyce, Brad/H-5045-2012
OI Boyce, Brad/0000-0001-5994-1743
NR 166
TC 67
Z9 67
U1 12
U2 143
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0014-4851
EI 1741-2765
J9 EXP MECH
JI Exp. Mech.
PD JAN
PY 2010
VL 50
IS 1
BP 5
EP 23
DI 10.1007/s11340-009-9301-2
PG 19
WC Materials Science, Multidisciplinary; Mechanics; Materials Science,
Characterization & Testing
SC Materials Science; Mechanics
GA 542FW
UT WOS:000273479400002
ER
PT J
AU Withey, EA
Ye, J
Minor, AM
Kuramoto, S
Chrzan, DC
Morris, JW
AF Withey, E. A.
Ye, J.
Minor, A. M.
Kuramoto, S.
Chrzan, D. C.
Morris, J. W., Jr.
TI Nanomechanical Testing of Gum Metal
SO EXPERIMENTAL MECHANICS
LA English
DT Article
DE Gum metal; Titanium; Sub-micron pillars; TEM; Compression
ID DEFORMATION; ALLOYS
AB "Gum Metal" is a newly developed beta-Ti alloy that, in the cold-worked condition, has exceptional elastic elongation and high strength. The available evidence suggests that Gum Metal does not yield until the applied stress approaches the ideal strength, and then deforms by mechanisms that do not involve conventional crystal dislocations. To study its behavior, submicron-sized pillars of solution-treated and cold-worked Gum Metal were compressed in situ in a quantitative compression stage in a transmission electron microscope. Solution-treated specimens and half of the cold-worked specimens exhibited essentially monotonic hardening during compression, but with serrated load-deflection curves that included periodic partial relaxations of the stress. The other cold-worked specimens exhibited pronounced shear instability. These samples deformed by a stick-slip motion along a well-defined shear plane, with a serrated load-deflection curve demonstrating partial stress relaxation at each sliding event. The pattern of deformation is consistent with prior work showing deformation by the formation and growth of shear bands and faults in a matrix that is densely decorated with defects.
C1 [Withey, E. A.; Ye, J.; Minor, A. M.; Chrzan, D. C.; Morris, J. W., Jr.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
[Ye, J.; Minor, A. M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA.
[Kuramoto, S.] Toyota Cent R&D Labs Inc, Aichi 4801192, Japan.
RP Withey, EA (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
EM ewithey@berkeley.edu
FU National Science Foundation [DMR 0706554]; Toyota Motor Corporation;
U.S. Department of Energy; [DE-AC02-05CH11231]
FX This research was supported by the National Science Foundation under
Grant DMR 0706554 and by Toyota Motor Corporation under a grant to the
University of California Berkeley. EW also acknowledges support from NSF
through a graduate research fellowship. Research at the National Center
for Electron Microscopy was supported by the Scientific User Facilities
Division of the Office of Basic Energy Sciences, U.S. Department of
Energy under Contract # DE-AC02-05CH11231.
NR 11
TC 7
Z9 8
U1 0
U2 22
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0014-4851
J9 EXP MECH
JI Exp. Mech.
PD JAN
PY 2010
VL 50
IS 1
BP 37
EP 45
DI 10.1007/s11340-008-9210-9
PG 9
WC Materials Science, Multidisciplinary; Mechanics; Materials Science,
Characterization & Testing
SC Materials Science; Mechanics
GA 542FW
UT WOS:000273479400004
ER
PT J
AU Kaschner, GC
Lovato, ML
Stout, MG
Proust, G
Liu, C
Beyerlein, IJ
Usov, I
Wang, Y
Tome, CN
AF Kaschner, G. C.
Lovato, M. L.
Stout, M. G.
Proust, G.
Liu, C.
Beyerlein, I. J.
Usov, I.
Wang, Y.
Tome, C. N.
TI Mini-Tensile Experiments of Clock-Rolled Zirconium Plate
SO EXPERIMENTAL MECHANICS
LA English
DT Article
DE Zirconium; Tensile; Twinning; Deformation; VPSC
ID FINITE-ELEMENT ANALYSIS; INTERSTITIAL IMPURITIES; HARDENING EVOLUTION;
MECHANICAL RESPONSE; HEXAGONAL MATERIALS; MODELING TEXTURE; DEFORMATION;
TEMPERATURE; TITANIUM
AB We present our efforts to measure the tensile strength of clock-rolled pure zirconium in the through-thickness (TT) direction of the plate. Although the plate is too thin to produce standard ASTM tensile samples in the TT orientation, such measurements are relevant to benchmarking our constitutive models of hardening and texture evolution. We have designed a fixture and sample to perform tensile tests on our 9 mm thick plate. The sample is a double-ligament mini-tensile sample: 8 x 8 x 1 mm overall; each ligament has a gage section of 1 x 1 x 3 mm. In contrast, our standard "macro" tensile sample is a flat dogbone with a gage section of 3 x 1.5 x 25 mm. We validate our design by comparing the results of mechanical tests performed on samples of both geometries. Although the hardening response is nearly identical, the flow stress of the miniature samples is offset by +25 MPa at the onset of plastic yield. We present our efforts to resolve the origin of this offset.
C1 [Kaschner, G. C.; Lovato, M. L.; Stout, M. G.; Proust, G.; Liu, C.; Beyerlein, I. J.; Usov, I.; Wang, Y.; Tome, C. N.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Proust, G.] Univ Sydney, Sydney, NSW 2006, Australia.
RP Kaschner, GC (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM kaschner@lanl.gov
RI Proust, Gwenaelle/A-3601-2010; Tome, Carlos/D-5058-2013; Beyerlein,
Irene/A-4676-2011; Kaschner, George/H-4445-2013
NR 15
TC 2
Z9 2
U1 1
U2 8
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0014-4851
J9 EXP MECH
JI Exp. Mech.
PD JAN
PY 2010
VL 50
IS 1
BP 65
EP 70
DI 10.1007/s11340-009-9224-y
PG 6
WC Materials Science, Multidisciplinary; Mechanics; Materials Science,
Characterization & Testing
SC Materials Science; Mechanics
GA 542FW
UT WOS:000273479400007
ER
PT J
AU Proust, G
Kaschner, GC
Beyerlein, IJ
Clausen, B
Brown, DW
McCabe, RJ
Tome, CN
AF Proust, G.
Kaschner, G. C.
Beyerlein, I. J.
Clausen, B.
Brown, D. W.
McCabe, R. J.
Tome, C. N.
TI Detwinning of High-Purity Zirconium: In-Situ Neutron Diffraction
Experiments
SO EXPERIMENTAL MECHANICS
LA English
DT Article
DE Neutron diffraction; Zirconium; Twinning; Texture; Plasticity
ID HARDENING EVOLUTION; TEXTURE; DEFORMATION; TEMPERATURE; ZR; ALLOYS
AB Twinning is an important deformation mode in hexagonal metals to accommodate deformation along the c-axis. It differs from slip in that it accommodates shear by means of crystallographic reorientation of domains within the grain. Such reorientation has been shown to be reversible (detwinning) in magnesium alloy aggregates. In this paper we perform in-situ neutron diffraction reversal experiments on high-purity Zr at room temperature and liquid nitrogen temperature, and follow the evolution of twin fraction. The experiments were motivated by previous studies done on clock-rolled Zr, subjected to deformation history changes (direction and temperature), in the quasi-static regime, for temperatures ranging from 76 K to 450 K. We demonstrate here for the first time that detwinning of {10 (1) over bar2} < 10 (11) over bar > tensile twins is favored over the activation of a different twin variant in grains of high-purity polycrystalline Zr. Avisco-plastic self-consistent (VPSC) model developed previously, which includes combined slip and twin deformation, was used here to simulate the reversal behavior of the material and to interpret the experimental results in terms of slip and twinning activities.
C1 [Proust, G.] Univ Sydney, Sch Civil Engn, Australian Key Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia.
[Proust, G.; Kaschner, G. C.; Beyerlein, I. J.; Clausen, B.; Brown, D. W.; McCabe, R. J.; Tome, C. N.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Proust, G (reprint author), Univ Sydney, Sch Civil Engn, Australian Key Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia.
EM g.proust@usyd.edu.au; kaschner@lanl.gov; irene@lanl.gov;
clausen@lanl.gov; dbrown@lanl.gov; rmccabe@lanl.gov; tome@lanl.gov
RI Proust, Gwenaelle/A-3601-2010; Tome, Carlos/D-5058-2013; Beyerlein,
Irene/A-4676-2011; Clausen, Bjorn/B-3618-2015; Kaschner,
George/H-4445-2013;
OI Clausen, Bjorn/0000-0003-3906-846X; McCabe, Rodney /0000-0002-6684-7410
FU Office of Basic Energy Sciences [FWP 06SCPE401]; U.S. DOE
[W-7405-ENG-36]
FX Work at LANL was supported under Office of Basic Energy Sciences Project
FWP 06SCPE401 and U.S. DOE Contract No. W-7405-ENG-36.
NR 19
TC 26
Z9 26
U1 0
U2 19
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0014-4851
J9 EXP MECH
JI Exp. Mech.
PD JAN
PY 2010
VL 50
IS 1
BP 125
EP 133
DI 10.1007/s11340-008-9213-6
PG 9
WC Materials Science, Multidisciplinary; Mechanics; Materials Science,
Characterization & Testing
SC Materials Science; Mechanics
GA 542FW
UT WOS:000273479400014
ER
PT S
AU Stone, KH
Stephens, PW
AF Stone, Kevin H.
Stephens, Peter W.
BE Scardi, P
Dinnebier, RE
TI Robust Refinement as Implemented in TOPAS
SO EXTENDING THE REACH OF POWDER DIFFRACTION MODELLING BY USER DEFINED
MACROS
SE Materials Science Forum
LA English
DT Article; Book Chapter
DE Robust Rietveld refinement; unmodeled impurities; iterative reweighting
ID POWDER DIFFRACTION
AB A robust refinement procedure is implemented in the program TOPAS through an iterative reweighting of the data. Examples are given of the procedure as applied to fitting partially overlapped peaks by full and partial models and also of the structures of ibuprofen and acetaminophen in the presence of unmodeled impurity contributions.
C1 [Stone, Kevin H.; Stephens, Peter W.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
RP Stone, KH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM kstone@lbl.gov; pstephens@notes.cc.sunysb.edu
RI Stone, Kevin/N-9311-2016
OI Stone, Kevin/0000-0003-1387-1510
NR 8
TC 0
Z9 0
U1 1
U2 7
PU TRANS TECH PUBLICATIONS LTD
PI STAFA-ZURICH
PA LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
SN 0255-5476
BN 978-0-87849-261-9
J9 MATER SCI FORUM
PY 2010
VL 651
BP 27
EP 36
DI 10.4028/www.scientific.net/MSF.651.27
PG 10
WC Materials Science, Coatings & Films
SC Materials Science
GA BPH28
UT WOS:000278844900004
ER
PT S
AU Anderson, CN
Daggett, J
Naulleau, PP
AF Anderson, Christopher N.
Daggett, Joe
Naulleau, Patrick P.
BE Fontaine, BML
TI Corner rounding in EUV photoresist: tuning through molecular weight, PAG
size, and development time
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Extreme Ultraviolet (EUV) Lithography
CY FEB 22-25, 2010
CL San Jose, CA
SP SPIE
DE Lithography; EUV; Photoresist; Corner Rounding
ID ACID
AB In this paper, the corner rounding bias of a commercially available extreme ultraviolet photoresist is monitored as molecular weight, photoacid generator (PAG) size, and development time are varied. These experiments show that PAG size influences corner biasing while molecular weight and development time do not. Large PAGs are shown to exhibit less corner biasing, and in some cases, lower corner rounding, than small PAGs. In addition, heavier resist polymers are shown to exhibit less corner rounding than lighter ones.
C1 [Anderson, Christopher N.; Naulleau, Patrick P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP Anderson, CN (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
EM cnanderson@lbl.gov
RI Anderson, Christopher/H-9526-2015
OI Anderson, Christopher/0000-0002-2710-733X
NR 7
TC 3
Z9 3
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8050-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7636
AR 763617
DI 10.1117/12.848362
PG 5
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU87
UT WOS:000285841400040
ER
PT S
AU George, SA
Naulleau, PP
Krishnamoorthy, A
Wu, ZY
Rutter, EW
Kennedy, JT
Xie, SY
Flanigan, KY
Wallow, TI
AF George, Simi A.
Naulleau, Patrick P.
Krishnamoorthy, Ahila
Wu, Zeyu
Rutter, Edward W., Jr.
Kennedy, Joseph T.
Xie, Song Yuan
Flanigan, Kyle Y.
Wallow, Thomas I.
BE Fontaine, BML
TI Characterization of Line Edge Roughness (LER) Propagation from Resists:
Underlayer Interfaces in Ultra-thin Resist Films
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Extreme Ultraviolet (EUV) Lithography
CY FEB 22-25, 2010
CL San Jose, CA
SP SPIE
DE EUV; resist sidewall; LER; sidewall roughness; inorganic underlayers;
ultrathin resists; resist-substrate interface; 3D-SEM
ID SIDEWALL ROUGHNESS; LITHOGRAPHY; PHOTORESIST; THICKNESS
AB Line edge roughness evolutions in EUV resist patterns are investigated. Three dimensional scanning electron microscopy images show the pattern sidewall roughness to be highly anisotropic and the roughness to be propagating from the resist-substrate interface up the resist pattern sidewall. In ultrathin resist films, (film thickness ca. 100 nm and below) roughness is found to be fully correlated from the resist-substrate interface to the resist-air interface. This behavior is seen regardless of the resist platforms being used.
Underlayer stack roughness contributions to the pattern sidewall roughness leading to resist LER were examined and no correlations between the two were found. At the same time, the chemical properties of the underlayer stacks are shown to have strong influences on the resist roughness and process performance. Exact mechanisms behind this are not clearly understood at present.
C1 [George, Simi A.; Naulleau, Patrick P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP George, SA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
NR 28
TC 8
Z9 8
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8050-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7636
AR 763605
DI 10.1117/12.848405
PG 12
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU87
UT WOS:000285841400005
ER
PT S
AU George, SA
Naulleau, PP
Kemp, CD
Denham, PE
Rekawa, S
AF George, Simi A.
Naulleau, Patrick P.
Kemp, Charles D.
Denham, Paul E.
Rekawa, Senajith
BE Fontaine, BML
TI Assessing out-of-band flare effects at the wafer level for EUV
lithography
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Extreme Ultraviolet (EUV) Lithography
CY FEB 22-25, 2010
CL San Jose, CA
SP SPIE
DE EUVL; out-of-band; resists; flare; blur on patterns; aerial image
modeling
AB To accurately estimate the flare contribution from the out-of-band (OOB), the integration of a DUV source into the SEMATECH Berkeley 0.3-NA Micro-field Exposure tool is proposed, enabling precisely controlled exposures along with the EUV patterning of resists in vacuum. First measurements evaluating the impact of bandwidth selected exposures with a table-top set-up and subsequent EUV patterning show significant impact on line-edge roughness and process performance. We outline a simulation-based method for computing the effective flare from resist sensitive wavelengths as a function of mask pattern types and sizes. This simulation method is benchmarked against measured OOB flare measurements and the results obtained are in agreement.
C1 [George, Simi A.; Naulleau, Patrick P.; Kemp, Charles D.; Denham, Paul E.; Rekawa, Senajith] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP George, SA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
EM sageorge@lbl.gov
NR 18
TC 12
Z9 12
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8050-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7636
AR 763626
DI 10.1117/12.847953
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU87
UT WOS:000285841400070
ER
PT S
AU Masson, G
AF Masson, Georgeta
BE Fontaine, BML
TI Cobalt-Containing Polymers as Patterning Assist Layers in Extreme
Ultra-Violet Lithography
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Extreme Ultraviolet (EUV) Lithography
CY FEB 22-25, 2010
CL San Jose, CA
SP SPIE
DE EUV; lithography; patterning; resolution; sensitivity; RLS trade-off;
cobalt; polymers
AB This paper communicates the use of cobalt-containing polymers in extreme ultra-violet lithography (EUVL). The polymers were synthesized in a two-step process through the complexation of dicobalt octacarbonyl, Co(2)(CO)(8) to a main-chain alkyne-functional polyester obtained by polycondensation protocol. As indicated by thermal analysis, the cobalt-containing polymers are characterized by a thermal transition around 110 degrees C assigned to a crosslinking process, a key factor in considering these materials as candidates for patterning assist layers (PAL) in EUVL. Positive and negative impacts of the metal component introduced through PAL upon the resolution, line-width roughness (LWR), and sensitivity (RLS) of the resist were investigated. The potential utility of these materials as wet developable PAL is also described.
C1 Intels Mol Adv Patterning, LBNL, Berkeley, CA 94720 USA.
RP Masson, G (reprint author), Intels Mol Adv Patterning, LBNL, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 13
TC 1
Z9 1
U1 2
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8050-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7636
AR 763631
DI 10.1117/12.846634
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU87
UT WOS:000285841400095
ER
PT S
AU Mochi, I
Goldberg, KA
La Fontaine, B
Tchikoulaeva, A
Holfeld, C
AF Mochi, I.
Goldberg, K. A.
La Fontaine, B.
Tchikoulaeva, A.
Holfeld, C.
BE Fontaine, BML
TI Actinic imaging of native and programmed defects on a full-field mask
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Extreme Ultraviolet (EUV) Lithography
CY FEB 22-25, 2010
CL San Jose, CA
SP SPIE
DE Mask inspection; defects; extreme ultraviolet; EUV; actinic;
lithography; microscopy
AB We describe the imaging and characterization of native defects on a full field extreme ultraviolet (EUV) mask, using several reticle and wafer inspection modes. Mask defect images recorded with the SEMATECH Berkeley Actinic Inspection Tool (AIT), an EUV-wavelength (13.4 nm) actinic microscope, are compared with mask and printed-wafer images collected with scanning electron microscopy (SEM) and deep ultraviolet (DUV) inspection tools.
We observed that defects that appear to be opaque in the SEM can be highly transparent to EUV light, and inversely, defects that are mostly transparent to the SEM can be highly opaque to EUV. The nature and composition of these defects, whether they appear on the top surface, within the multilayer coating, or on the substrate as buried bumps or pits, influences both their significance when printed, and their detectability with the available techniques. Actinic inspection quantitatively predicts the characteristics of printed defect images in ways that may not be possible with non-EUV techniques.
As a quantitative example, we investigate the main structural characteristics of a buried pit defect based on EUV through-focus imaging.
C1 [Mochi, I.; Goldberg, K. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Mochi, I (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 8
TC 13
Z9 13
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8050-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7636
AR 76361A
DI 10.1117/12.846670
PG 9
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU87
UT WOS:000285841400043
ER
PT S
AU Naulleau, P
Anderson, CN
Baclea-an, LM
Chan, D
Denham, P
George, S
Goldberg, KA
Hoef, B
Jones, G
Koh, C
La Fontaine, B
McClinton, B
Miyakawa, R
Montgomery, W
Rekawa, S
Wallow, T
AF Naulleau, Patrick
Anderson, Christopher N.
Baclea-an, Lorie-Mae
Chan, David
Denham, Paul
George, Simi
Goldberg, Kenneth A.
Hoef, Brian
Jones, Gideon
Koh, Chawon
La Fontaine, Bruno
McClinton, Brittany
Miyakawa, Ryan
Montgomery, Warren
Rekawa, Seno
Wallow, Tom
BE Fontaine, BML
TI The SEMATECH Berkeley MET pushing EUV development beyond 22-nm half
pitch
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Extreme Ultraviolet (EUV) Lithography
CY FEB 22-25, 2010
CL San Jose, CA
SP SPIE
DE extreme ultraviolet; lithography; photoresist; mask roughness; mask
cleaning; nanolithography
ID LINE-EDGE ROUGHNESS; EXTREME-ULTRAVIOLET LITHOGRAPHY; MASK-ROUGHNESS;
TOOL
AB Microfield exposure tools (METs) play a crucial role in the development of extreme ultraviolet (EUV) resists and masks. One of these tools is the SEMATECH Berkeley 0.3 numerical aperture (NA) MET. Using conventional illumination this tool is limited to approximately 22-nm half pitch resolution. However, resolution enhancement techniques have been used to push the patterning capabilities of this tool to half pitches of 18 nm and below. This resolution was achieved in a new imageable hardmask which also supports contact printing down to 22 nm with conventional illumination. Along with resolution, line-edge roughness is another crucial hurdle facing EUV resists. Much of the resist LER, however, can be attributed to the mask. We have shown that intenssionally aggressive mask cleaning on an older generation mask causes correlated LER in photoresist to increase from 3.4 nm to 4.0 nm. We have also shown that new generation EUV masks (100 pm of substrate roughness) can achieve correlated LER values of 1.1 nm, a 3x improvement over the correlated LER of older generation EUV masks (230 pm of substrate roughness). Finally, a 0.5-NA MET has been proposed that will address the needs of EUV development at the 16-nm node and beyond. The tool will support an ultimate resolution of 8 nm half-pitch and generalized printing using conventional illumination down to 12 nm half pitch.
C1 [Naulleau, Patrick; Anderson, Christopher N.; Baclea-an, Lorie-Mae; Denham, Paul; George, Simi; Goldberg, Kenneth A.; Hoef, Brian; Jones, Gideon; Rekawa, Seno] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP Naulleau, P (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RI Anderson, Christopher/H-9526-2015
OI Anderson, Christopher/0000-0002-2710-733X
NR 13
TC 14
Z9 14
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8050-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7636
AR 76361J
DI 10.1117/12.848438
PG 9
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU87
UT WOS:000285841400052
ER
PT S
AU Naulleau, PP
George, SA
McClinton, BM
AF Naulleau, Patrick P.
George, Simi A.
McClinton, Brittany M.
BE Fontaine, BML
TI Mask roughness and its implications for LER at the 22-and 16-nm nodes
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Extreme Ultraviolet (EUV) Lithography
CY FEB 22-25, 2010
CL San Jose, CA
SP SPIE
DE extreme ultraviolet; lithography; line-edge roughness; multilayer;
speckle; photomask; surface roughness
ID LINE-EDGE ROUGHNESS
AB Line-edge roughness (LER) remains the most significant challenge facing the development of extreme ultraviolet (EUV) resist. The mask, however, has been found to be a significant contributor to image-plane LER. This has long been expected based on modeling and has more recently been demonstrated experimentally. Problems arise from both mask-absorber LER as well as mask multilayer roughness leading to random phase variations in the reflected beam and consequently speckle. Understanding the implications this has on mask requirements for the 22-nm half pitch node and below is crucial. Modeling results indicate a replicated surface roughness (RSR) specification of 50 pm and a ruthenium capping layer roughness specification of 440 pm. Moreover, modeling indicates that it is crucial to achieve the current ITRS specifications for mask absorber LER which is significantly smaller than current capabilities.
C1 [Naulleau, Patrick P.; George, Simi A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP Naulleau, PP (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
NR 4
TC 5
Z9 5
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8050-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7636
AR 76362H
DI 10.1117/12.851561
PG 7
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU87
UT WOS:000285841400078
ER
PT S
AU Wintz, DT
Goldberg, KA
Mochi, I
Huh, S
AF Wintz, Daniel T.
Goldberg, Kenneth A.
Mochi, Iacopo
Huh, Sungmin
BE Fontaine, BML
TI Photon flux requirements for EUV reticle imaging microscopy in the 22
and 16 nm nodes
SO EXTREME ULTRAVIOLET (EUV) LITHOGRAPHY
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Extreme Ultraviolet (EUV) Lithography
CY FEB 22-25, 2010
CL San Jose, CA
SP SPIE
DE extreme ultraviolet lithography; EUV; linewidth roughness; LWR; actinic
mask inspection; reticle; imaging
ID LINE-EDGE ROUGHNESS; LITHOGRAPHY
AB EUV-wavelength actinic microscopy yields detailed information about EUV mask patterns, architectures, defects, and the performance of defect repair strategies, without the complications of photoresist imaging. The measured aerial image intensity profiles provide valuable feedback to improve mask and lithography system modeling methods.
In order to understand the photon-flux-dependent pattern measurement limits of EUV mask-imaging microscopy, we have investigated the effects of shot noise on aerial image linewidth measurements for lines in the 22 and 16-nm generations. Using a simple model of image formation near the resolution limit, we probe the influence of photon shot noise on the measured, apparent line roughness. With this methodology, we arrive at general flux density requirements independent of the specific EUV microscope configurations.
Analytical and statistical analysis of aerial image simulations in the 22 and 16-nm generations reveal the trade-offs between photon energy density (controllable with exposure time), effective pixel dimension on the CCD (controlled by the microscope's magnification ratio), and image log slope (ILS). We find that shot-noise-induced linewidth roughness (LWR) varies inversely with the square root of the photon energy density, and is proportional to the imaging magnification ratio. While high magnification is necessary for adequate spatial resolution, for a given flux density, higher magnification ratios have diminishing benefits. With practical imaging parameters, we find that in order to achieve an LWR (3 sigma) value of 5% of linewidth for dense, 88-nm mask features with 80% aerial image contrast and 13.5-nm effective pixel width (1000x magnification ratio), a peak photon flux of approximately 1400 photons per pixel per exposure is required.
C1 [Wintz, Daniel T.; Goldberg, Kenneth A.; Mochi, Iacopo] Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
RP Wintz, DT (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
NR 13
TC 1
Z9 1
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8050-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7636
AR 76362L
DI 10.1117/12.846528
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA BSU87
UT WOS:000285841400082
ER
PT J
AU Sun, X
AF Sun, X.
BE Sun, X
TI Resistance spot weld failure mode and weld performance for aluminum
alloys
SO FAILURE MECHANISMS OF ADVANCED WELDING PROCESSES
LA English
DT Article; Book Chapter
DE aluminum resistance spot welds; energy absorption; failure modes; fusion
zone size; interfacial fracture; nugget pullout; static strength; weld
porosity
AB This chapter discusses the relationship between fusion zone size and weld performance for aluminum resistance spot welds. Weld performance in terms of failure modes, static strength and energy absorption is examined using a combined experimental, statistical and analytical approach. The main failure modes for aluminum spot welds are nugget pullout and interfacial fracture. It is found that fusion zone size, sheet thickness and the level and location of weld porosity/defects are the main factors influencing the cross-tension failure mode of an aluminum spot weld. Two additional spot weld populations with different fusion zone sizes are used to validate the analytical failure mode model.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Sun, X (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA.
EM xin.sun@pnl.gov; xin.sun@pnl.gov
NR 16
TC 0
Z9 0
U1 1
U2 2
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-976-5
PY 2010
BP 24
EP 42
DI 10.1533/9781845699765.24
D2 10.1533/9781845699765
PG 19
WC Engineering, Mechanical; Metallurgy & Metallurgical Engineering
SC Engineering; Metallurgy & Metallurgical Engineering
GA BRQ84
UT WOS:000283438100002
ER
PT J
AU Sun, X
AF Sun, X.
BE Sun, X
TI Joining lightweight materials using reactive nanofoils
SO FAILURE MECHANISMS OF ADVANCED WELDING PROCESSES
LA English
DT Article; Book Chapter
DE adhesive failure; bonding; bond strength; cohesive failure; energy
absorption; nanoscale layers; reactive NanoFoil (R)
AB In this chapter, we present the strength and failure modes of reactive NanoFoil (R) bonded joints for similar and dissimilar lightweight materials. First, solder and braze joints for similar and dissimilar material combinations of steel, aluminum and magnesium are fabricated. Static bond strength tests under tensile shear loading condition are then performed to quantify the bond strength for different material combinations. The through-thickness microstructure changes and modifications by the bonding process are quantified using SEM. Depending on the base material combinations, it is shown that the nanofoil bond strength is comparable to those of the conventional structural adhesive bonds.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Sun, X (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99352 USA.
EM xin.sun@pnl.gov; xin.sun@pnl.gov
NR 6
TC 0
Z9 0
U1 0
U2 0
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-976-5
PY 2010
BP 289
EP 305
DI 10.1533/9781845699765.289
D2 10.1533/9781845699765
PG 17
WC Engineering, Mechanical; Metallurgy & Metallurgical Engineering
SC Engineering; Metallurgy & Metallurgical Engineering
GA BRQ84
UT WOS:000283438100011
ER
PT J
AU Yelle, RV
Vuitton, V
Lavvas, P
Klippenstein, SJ
Smith, MA
Horst, SM
Cui, J
AF Yelle, Roger V.
Vuitton, V.
Lavvas, P.
Klippenstein, S. J.
Smith, M. A.
Hoerst, S. M.
Cui, J.
TI Formation of NH3 and CH2NH in Titan's upper atmosphere
SO FARADAY DISCUSSIONS
LA English
DT Article; Proceedings Paper
CT Conference on Chemistry of the Planets
CY JUN 14-16, 2010
CL Brittany, FRANCE
ID PHOTOIONIZATION CROSS-SECTIONS; ION-MOLECULE CHEMISTRY; GAS-PHASE;
AB-INITIO; COUPLING PHOTOCHEMISTRY; PREDICTIVE THEORY; ROOM-TEMPERATURE;
HYDROCARBON IONS; HAZE FORMATION; WAVE-FUNCTIONS
AB The large abundance of NH3 in Titan's upper atmosphere is a consequence of coupled ion and neutral chemistry. The density of NH3 is inferred from the measured abundance of NH4+ center dot NH3 is produced primarily through reaction of NH2 with H2CN, a process neglected in previous models. NH2 is produced by several reactions including electron recombination of CH2NH2+. The density of CH2NH2+ is closely linked to the density of CH2NH through proton exchange reactions and recombination. CH2NH is produced by reaction of N(D-2) and NH with ambient hydrocarbons. Thus, production of NH3 is the result of a chain of reactions involving non-nitrile functional groups and the large density of NH3 implies large densities for these associated molecules. This suggests that amine and imine functional groups may be incorporated as well in other, more complex organic molecules.
C1 [Yelle, Roger V.; Lavvas, P.; Smith, M. A.; Hoerst, S. M.] Univ Arizona, Dept Planetary Sci, Tucson, AZ 85721 USA.
[Vuitton, V.] Univ J Fourier, Lab Planet Grenoble, Grenoble, France.
[Klippenstein, S. J.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA.
[Smith, M. A.] Univ Arizona, Dept Chem & Biochem, Tucson, AZ 85721 USA.
[Cui, J.] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2BW, England.
RP Yelle, RV (reprint author), Univ Arizona, Dept Planetary Sci, Tucson, AZ 85721 USA.
RI Horst, Sarah/A-9906-2010;
OI Horst, Sarah/0000-0003-4596-0702; Klippenstein,
Stephen/0000-0001-6297-9187
NR 65
TC 33
Z9 33
U1 2
U2 23
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-6640
EI 1364-5498
J9 FARADAY DISCUSS
JI Faraday Discuss.
PY 2010
VL 147
BP 31
EP 49
DI 10.1039/c004787m
PG 19
WC Chemistry, Physical
SC Chemistry
GA 685DR
UT WOS:000284608900002
PM 21302541
ER
PT J
AU Nixon, CA
Achterberg, RK
Teanby, NA
Irwin, PGJ
Flaud, JM
Kleiner, I
Dehayem-Kamadjeu, A
Brown, LR
Sams, RL
Bezard, B
Coustenis, A
Ansty, TM
Mamoutkine, A
Vinatier, S
Bjoraker, GL
Jennings, DE
Romani, PN
Flasar, FM
AF Nixon, Conor A.
Achterberg, Richard K.
Teanby, Nicholas A.
Irwin, Patrick G. J.
Flaud, Jean-Marie
Kleiner, Isabelle
Dehayem-Kamadjeu, Alix
Brown, Linda R.
Sams, Robert L.
Bezard, Bruno
Coustenis, Athena
Ansty, Todd M.
Mamoutkine, Andrei
Vinatier, Sandrine
Bjoraker, Gordon L.
Jennings, Donald E.
Romani, Paul. N.
Flasar, F. Michael
TI Upper limits for undetected trace species in the stratosphere of Titan
SO FARADAY DISCUSSIONS
LA English
DT Article; Proceedings Paper
CT Conference on Chemistry of the Planets
CY JUN 14-16, 2010
CL Brittany, FRANCE
ID COMPOSITE INFRARED SPECTROMETER; CASSINI CIRS; UPPER-ATMOSPHERE;
ISOTOPIC-RATIOS; METHYL CYANIDE; MU-M; SPECTRA; HC3N; HCN; INTENSITIES
AB In this paper we describe the first quantitative search for several molecules in Titan's stratosphere in Cassini CIRS infrared spectra. These are: ammonia (NH3), methanol (CH3OH), formaldehyde (H2CO), and acetonitrile (CH3CN), all of which are predicted by photochemical models but only the last of which has been observed, and not in the infrared. We find non-detections in all cases, but derive upper limits on the abundances from low-noise observations at 25 degrees S and 75 degrees N. Comparing these constraints to model predictions, we conclude that CIRS is highly unlikely to see NH3 or CH3OH emissions. However, CH3CN and H2CO are closer to CIRS detectability, and we suggest ways in which the sensitivity threshold may be lowered towards this goal.
C1 [Nixon, Conor A.; Achterberg, Richard K.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Nixon, Conor A.; Achterberg, Richard K.; Vinatier, Sandrine; Bjoraker, Gordon L.; Jennings, Donald E.; Romani, Paul. N.; Flasar, F. Michael] NASA, Planetary Syst Lab, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Teanby, Nicholas A.; Irwin, Patrick G. J.] Univ Oxford, Oxford OX1 3PU, England.
[Flaud, Jean-Marie; Kleiner, Isabelle; Dehayem-Kamadjeu, Alix] Univ Paris 07, LISA, CNRS, UMR 7583, F-94010 Creteil, France.
[Flaud, Jean-Marie; Kleiner, Isabelle; Dehayem-Kamadjeu, Alix] Univ Paris Est, LISA, CNRS, UMR 7583, F-94010 Creteil, France.
[Dehayem-Kamadjeu, Alix] Univ Nairobi, Dept Phys, Coll Biol & Phys Sci, Nairobi, Kenya.
[Brown, Linda R.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Sams, Robert L.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Bezard, Bruno; Coustenis, Athena] LESIA, Observ Paris Meudon, F-92195 Meudon, France.
[Ansty, Todd M.] Cornell Univ, Dept Space Sci, Ithaca, NY 14853 USA.
[Mamoutkine, Andrei] Adnet Syst Inc, Rockville, MD 20852 USA.
RP Nixon, CA (reprint author), Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
EM conor.a.nixon@nasa.gov
RI Nixon, Conor/A-8531-2009; Flasar, F Michael/C-8509-2012; Romani,
Paul/D-2729-2012; Bjoraker, Gordon/D-5032-2012; Jennings,
Donald/D-7978-2012;
OI Nixon, Conor/0000-0001-9540-9121; Teanby, Nicholas/0000-0003-3108-5775;
Irwin, Patrick/0000-0002-6772-384X
NR 59
TC 14
Z9 14
U1 0
U2 16
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-6640
EI 1364-5498
J9 FARADAY DISCUSS
JI Faraday Discuss.
PY 2010
VL 147
BP 65
EP 81
DI 10.1039/c003771k
PG 17
WC Chemistry, Physical
SC Chemistry
GA 685DR
UT WOS:000284608900004
PM 21302543
ER
PT J
AU Kaiser, RI
Maksyutenko, P
Ennis, C
Zhang, FT
Gu, XB
Krishtal, SP
Mebel, AM
Kostko, O
Ahmed, M
AF Kaiser, Ralf I.
Maksyutenko, Pavlo
Ennis, Courtney
Zhang, Fangtong
Gu, Xibin
Krishtal, Sergey P.
Mebel, Alexander M.
Kostko, Oleg
Ahmed, Musahid
TI Untangling the chemical evolution of Titan's atmosphere and surface-from
homogeneous to heterogeneous chemistry
SO FARADAY DISCUSSIONS
LA English
DT Article; Proceedings Paper
CT Conference on Chemistry of the Planets
CY JUN 14-16, 2010
CL Brittany, FRANCE
ID CROSSED-BEAM REACTION; NEUTRAL-NEUTRAL REACTIONS; POTENTIAL-ENERGY
SURFACE; PHOTOIONIZATION MASS-SPECTROMETRY; CLASSICAL TRAJECTORY
CALCULATIONS; MOLECULAR-HYDROGEN ELIMINATION; VOYAGER INFRARED
OBSERVATIONS; SINGLE COLLISION CONDITIONS; PRIMARY PRODUCT CHANNELS;
METAL-ION CHEMISTRY
AB In this article, we first explored the chemical dynamics of simple diatomic radicals (dicarbon, methylidyne) utilizing the crossed molecular beams method. This versatile experimental technique can be applied to study reactions relevant to the atmospheres of planets and their moons as long as intense and stable supersonic beam sources of the reactant species exist. By focusing on reactions of dicarbon with hydrogen cyanide, we untangled the contribution of dicarbon in its singlet ground and first excited triplet states. These results were applied to understand and re-analyze the data of crossed beam reactions of the isoelectronic dicarbon plus acetylene reaction. Further, we investigated the interaction of ionizing radiation in form of energetic electrons with organic molecules ethane and propane sequestered on Titan's surface. These experiments presented compelling evidence that even at irradiation exposures equivalent to about 44 years on Titan's surface, aliphatic like organic residues can be produced on Titan's surface with thicknesses up to 1.5 m. Finally, we investigated how Titan's nascent chemical inventory can be altered by an external influx of matter as supplied by (micro) meteorites and possibly comets. For this, we simulated the ablation process in Titan's atmosphere, which can lead to ground and electronically excited atoms of, for instance, the principal constituents of silicates like iron, silicon, and magnesium, in laboratory experiments. By ablating silicon species and seeding the ablated species in acetylene carrier gas, which also acts as a reactant, we produced organo silicon species, which were then photoionized utilizing tunable VUV radiation from the Advanced Light Source. In combination with electronic structure calculations, the structures and ionization energies of distinct organo-silicon species were elucidated.
C1 [Kaiser, Ralf I.; Maksyutenko, Pavlo; Ennis, Courtney; Zhang, Fangtong; Gu, Xibin] Univ Hawaii Manoa, Dept Chem, Honolulu, HI 96822 USA.
[Krishtal, Sergey P.; Mebel, Alexander M.] Florida Int Univ, Dept Chem & Biochem, Miami, FL 33199 USA.
[Kostko, Oleg; Ahmed, Musahid] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA.
RP Kaiser, RI (reprint author), Univ Hawaii Manoa, Dept Chem, Honolulu, HI 96822 USA.
RI Ahmed, Musahid/A-8733-2009; Kostko, Oleg/B-3822-2009; Mebel,
Alexander/A-5234-2009; Ennis, Courtney/M-5050-2015
OI Kostko, Oleg/0000-0003-2068-4991; Ennis, Courtney/0000-0003-1774-8982
NR 251
TC 59
Z9 59
U1 0
U2 22
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1364-5498
J9 FARADAY DISCUSS
JI Faraday Discuss.
PY 2010
VL 147
BP 429
EP 478
DI 10.1039/c003599h
PG 50
WC Chemistry, Physical
SC Chemistry
GA 685DR
UT WOS:000284608900024
PM 21302560
ER
PT B
AU Tsvetkov, P
Waltar, A
Todd, D
AF Tsvetkov, Pavel
Waltar, Alan
Todd, Donald
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Sustainable Development of Nuclear Energy and the Role of Fast Spectrum
Reactors
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID TRANSMUTATION
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Todd, Donald] NuScale Power, Corvallis, OR USA.
[Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; alan.waltar@wildblue.net; donald.r.todd@gmail.com
NR 17
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 3
EP 22
DI 10.1007/978-1-4419-9572-8_1
D2 10.1007/978-1-4419-9572-8
PG 20
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400001
ER
PT B
AU Tsvetkov, P
Waltar, A
Todd, D
AF Tsvetkov, Pavel
Waltar, Alan
Todd, Donald
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Introductory Design Considerations
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Todd, Donald] NuScale Power, Corvallis, OR USA.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; alan.waltar@wildblue.net; donald.r.todd@gmail.com
NR 5
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 23
EP 38
DI 10.1007/978-1-4419-9572-8_2
D2 10.1007/978-1-4419-9572-8
PG 16
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400002
ER
PT B
AU Tsvetkov, P
Waltar, A
Todd, D
AF Tsvetkov, Pavel
Waltar, Alan
Todd, Donald
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Nuclear Design
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Todd, Donald] NuScale Power, Corvallis, OR USA.
[Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; alan.waltar@wildblue.net; donald.r.todd@gmail.com
NR 13
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 49
EP 76
DI 10.1007/978-1-4419-9572-8_4
D2 10.1007/978-1-4419-9572-8
PG 28
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400004
ER
PT B
AU Tsvetkov, P
Waltar, A
AF Tsvetkov, Pavel
Waltar, Alan
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Nuclear Data and Cross Section Processing
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; alan.waltar@wildblue.net
NR 26
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 77
EP 109
DI 10.1007/978-1-4419-9572-8_5
D2 10.1007/978-1-4419-9572-8
PG 33
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400005
ER
PT B
AU Tsvetkov, P
Waltar, A
Todd, D
AF Tsvetkov, Pavel
Waltar, Alan
Todd, Donald
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Kinetics, Reactivity Effects, and Control Requirements
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Todd, Donald] NuScale Power, Corvallis, OR USA.
[Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; alan.waltar@wildblue.net; donald.r.todd@gmail.com
NR 13
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 111
EP 133
DI 10.1007/978-1-4419-9572-8_6
D2 10.1007/978-1-4419-9572-8
PG 23
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400006
ER
PT B
AU Tsvetkov, P
Waltar, A
Salvatores, M
AF Tsvetkov, Pavel
Waltar, Alan
Salvatores, Massimo
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Fuel Management
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID BREEDING RATIO; DOUBLING TIME; TRANSMUTATION; DEFINITIONS; SYSTEM
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Salvatores, Massimo] CEA, Paris, France.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; alan.waltar@wildblue.net; massimo.salvatores@cea.fr
NR 44
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 135
EP 185
DI 10.1007/978-1-4419-9572-8_7
D2 10.1007/978-1-4419-9572-8
PG 51
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400007
ER
PT B
AU Waltar, A
Todd, D
AF Waltar, Alan
Todd, Donald
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Fuel Pin and Assembly Design
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID FISSION-GAS RELEASE; MIXED-OXIDE FUEL; STAINLESS-STEEL; REACTOR-FUEL;
TRANSIENT; BEHAVIOR; CREEP
C1 [Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Todd, Donald] NuScale Power, Corvallis, OR USA.
EM alan.waltar@wildblue.net; donald.r.todd@gmail.com
NR 35
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 189
EP 234
DI 10.1007/978-1-4419-9572-8_8
D2 10.1007/978-1-4419-9572-8
PG 46
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400008
ER
PT B
AU Waltar, A
Todd, D
AF Waltar, Alan
Todd, Donald
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Fuel Pin Thermal Performance
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID LIQUID-METALS; HEAT-TRANSFER; BUNDLES
C1 [Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Todd, Donald] NuScale Power, Corvallis, OR USA.
EM alan.waltar@wildblue.net; donald.r.todd@gmail.com
NR 20
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 235
EP 262
DI 10.1007/978-1-4419-9572-8_9
D2 10.1007/978-1-4419-9572-8
PG 28
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400009
ER
PT B
AU Waltar, A
Todd, D
AF Waltar, Alan
Todd, Donald
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Core Thermal Hydraulics Design
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID FUEL ROD ASSEMBLIES; PREDICTING TEMPERATURE DISTRIBUTION; WRAP SPACER
SYSTEM; POROUS BODY MODEL; FLOW; BUNDLE
C1 [Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Todd, Donald] NuScale Power, Corvallis, OR USA.
EM alan.waltar@wildblue.net; donald.r.todd@gmail.com
NR 32
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 263
EP 298
DI 10.1007/978-1-4419-9572-8_10
D2 10.1007/978-1-4419-9572-8
PG 36
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400010
ER
PT B
AU Tsvetkov, P
Waltar, A
Todd, D
AF Tsvetkov, Pavel
Waltar, Alan
Todd, Donald
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Reactor Plant Systems
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID GAS TAG IDENTIFICATION; FAILED FUEL
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Todd, Donald] NuScale Power, Corvallis, OR USA.
[Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; alan.waltar@wildblue.net; donald.r.todd@gmail.com
NR 15
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 365
EP 407
DI 10.1007/978-1-4419-9572-8_12
D2 10.1007/978-1-4419-9572-8
PG 43
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400012
ER
PT B
AU Sackett, J
AF Sackett, John
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI General Safety Considerations
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
C1 [Sackett, John] Argonne Natl Lab, Argonne, IL 60439 USA.
EM johnflyer@3riversdbs.net
NR 34
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 411
EP 426
DI 10.1007/978-1-4419-9572-8_13
D2 10.1007/978-1-4419-9572-8
PG 16
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400013
ER
PT B
AU Sackett, J
AF Sackett, John
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Protected Transients
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID GAS TAG IDENTIFICATION; FAILED FUEL
C1 [Sackett, John] Argonne Natl Lab, Argonne, IL 60439 USA.
EM johnflyer@3riversdbs.net
NR 36
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 427
EP 449
DI 10.1007/978-1-4419-9572-8_14
D2 10.1007/978-1-4419-9572-8
PG 23
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400014
ER
PT B
AU Sackett, J
AF Sackett, John
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Unprotected Transients
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID TESTS
C1 [Sackett, John] Argonne Natl Lab, Argonne, IL 60439 USA.
EM johnflyer@3riversdbs.net
NR 28
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 451
EP 463
DI 10.1007/978-1-4419-9572-8_15
D2 10.1007/978-1-4419-9572-8
PG 13
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400015
ER
PT B
AU Sackett, J
AF Sackett, John
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Severe Accidents and Containment Considerations
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID BREEDER REACTOR SAFETY; AIR
C1 [Sackett, John] Argonne Natl Lab, Argonne, IL 60439 USA.
EM johnflyer@3riversdbs.net
NR 51
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 465
EP 486
DI 10.1007/978-1-4419-9572-8_16
D2 10.1007/978-1-4419-9572-8
PG 22
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400016
ER
PT B
AU Sienicki, J
AF Sienicki, James
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Lead-Cooled Fast Reactors
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID MOLTEN LEAD; BISMUTH; CORROSION
C1 Argonne Natl Lab, Innovat Syst Dev Sect, Argonne, IL 60439 USA.
RP Sienicki, J (reprint author), Argonne Natl Lab, Innovat Syst Dev Sect, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM sienicki@anl.gov
NR 30
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 513
EP 532
DI 10.1007/978-1-4419-9572-8_18
D2 10.1007/978-1-4419-9572-8
PG 20
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400018
ER
PT B
AU Tsvetkov, P
Waltar, A
AF Tsvetkov, Pavel
Waltar, Alan
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Fast Reactor Data
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; alan.waltar@wildblue.net
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 533
EP 555
DI 10.1007/978-1-4419-9572-8
D2 10.1007/978-1-4419-9572-8
PG 23
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400019
ER
PT B
AU Tsvetkov, P
Yang, WS
AF Tsvetkov, Pavel
Yang, Won Sik
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI Fast Reactor Simulations
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID POWER
C1 [Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
[Yang, Won Sik] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Tsvetkov, P (reprint author), Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM tsvetkov@tamu.edu; wyang@anl.gov
NR 34
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 625
EP 640
D2 10.1007/978-1-4419-9572-8
PG 16
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400023
ER
PT B
AU Waltar, A
Tsvetkov, P
AF Waltar, Alan
Tsvetkov, Pavel
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI 4-Group and 8-Group Cross Sections
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
C1 [Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Tsvetkov, Pavel] Texas A&M Univ, Dept Nucl Engn, Zachry Engn Ctr, College Stn, TX 77843 USA.
EM alan.waltar@wildblue.net; tsvetkov@tamu.edu
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 641
EP 649
D2 10.1007/978-1-4419-9572-8
PG 9
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400024
ER
PT B
AU Waltar, A
AF Waltar, Alan
BE Waltar, AE
Todd, DR
Tsvetkov, PV
TI End of Spectrum HCDA Perspectives for SFRs
SO FAST SPECTRUM REACTORS
LA English
DT Article; Book Chapter
ID CORE-DISRUPTIVE ACCIDENTS; FUEL-COOLANT INTERACTIONS; REACTOR;
HYDRODYNAMICS; ENERGY
C1 [Waltar, Alan] Pacific NW Natl Lab, Richland, WA 99352 USA.
EM alan.waltar@wildblue.net
NR 49
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-9571-1
PY 2010
BP 651
EP 683
D2 10.1007/978-1-4419-9572-8
PG 33
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA BYK55
UT WOS:000299173400025
ER
PT J
AU Kielak, A
Rodrigues, JLM
Kuramae, EE
Chain, PSG
van Veen, JA
Kowalchuk, GA
AF Kielak, Anna
Rodrigues, Jorge L. M.
Kuramae, Eiko E.
Chain, Patrick S. G.
van Veen, Johannes A.
Kowalchuk, George A.
TI Phylogenetic and metagenomic analysis of Verrucomicrobia in former
agricultural grassland soil
SO FEMS MICROBIOLOGY ECOLOGY
LA English
DT Article
DE Verrucomicrobia; phylogeny; environmental genomics; bacterial
communities; rhizosphere; metagenomics
ID RIBOSOMAL-RNA GENES; RICE PADDY SOIL; PHYLUM VERRUCOMICROBIA; SP-NOV.;
MICROBIAL COMMUNITIES; BACTERIAL DIVERSITY; SEQUENCE DATA; PURE-CULTURE;
CULTIVATION; ACIDOBACTERIA
AB The bacterial phylum Verrucomicrobia has a widespread distribution, and is known to be one of the most common and diverse phyla in soil habitats. However, members of this phylum have typically been recalcitrant to cultivation methods, hampering the study of this presumably important bacterial group. In this study, we examine the phylogenetic diversity of the Verrucomicrobia in a former agricultural field and gain access to genomic information via a metagenomic approach. We examined Verrucomicrobia-like 16S rRNA gene sequences recovered from general bacterial and phylum-specific libraries, revealing a dominance of subdivisions 1 and 2. A PCR-based screening method was developed to identify inserts containing verrucomicrobial 16S rRNA genes within a large-insert metagenomic library, and on screening of 28 800 clones, four fosmids were identified as containing verrucomicrobial genomic DNA. Full-length sequencing of fosmid inserts and gene annotation identified a total of 98 ORFs, representing a range of functions. No conservation of gene order was observed adjacent to the ribosomal operons. Fosmid inserts were further analyzed for tetranucleotide frequencies to identify remnants of past horizontal gene transfer events. The metagenomic approach utilized proved to be suitable for the recovery of verrucomicrobial genomic DNA, thereby providing a window into the genomes of members of this important, yet poorly characterized, bacterial phylum.
C1 [Kielak, Anna; Kuramae, Eiko E.; van Veen, Johannes A.; Kowalchuk, George A.] Netherlands Inst Ecol NIOO KNAW, Dept Microbial Ecol, NL-6666 ZG Heteren, Netherlands.
[Rodrigues, Jorge L. M.] Univ Texas Arlington, Arlington Dept Biol, Arlington, TX 76019 USA.
[Kuramae, Eiko E.] Free Univ Amsterdam, Inst Ecol Sci, Dept Anim Ecol, NL-1081 HV Amsterdam, Netherlands.
[Chain, Patrick S. G.] Joint Genome Inst, Microbial Program, Walnut Creek, CA USA.
[Chain, Patrick S. G.] Michigan State Univ, Ctr Microbial Ecol, E Lansing, MI 48824 USA.
[van Veen, Johannes A.] Leiden Univ, Inst Biol, Leiden, Netherlands.
RP Kowalchuk, GA (reprint author), Netherlands Inst Ecol NIOO KNAW, Dept Microbial Ecol, POB 40, NL-6666 ZG Heteren, Netherlands.
EM g.kowalchuk@nioo.knaw.nl
RI Kowalchuk, George/C-4298-2011; van Veen, Johannes/C-3697-2011; chain,
patrick/B-9777-2013; Kuramae, Eiko/F-4738-2012
OI Kuramae, Eiko/0000-0001-6701-8668
FU BSIK
FX We thank Stephanie Malfatti and Mari Christensen from Joint Genome
Institute (JGI) for help with DNA sequencing and assembling. Ellin514
sequence data were produced by the US Department of Energy JGI
(www.jgi.doe.gov). This work was funded by the BSIK programme
'Ecogenomics' (http://www.ecogenomics.nl). This is Netherlands Institute
of Ecology (NIOO-KNAW) publication 4606.
NR 58
TC 10
Z9 10
U1 1
U2 27
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0168-6496
J9 FEMS MICROBIOL ECOL
JI FEMS Microbiol. Ecol.
PD JAN
PY 2010
VL 71
IS 1
BP 23
EP 33
DI 10.1111/j.1574-6941.2009.00785.x
PG 11
WC Microbiology
SC Microbiology
GA 528NH
UT WOS:000272452100004
PM 19811538
ER
PT J
AU Yamada, T
Kamo, T
Su, D
Iijima, T
Funakubo, H
AF Yamada, T.
Kamo, T.
Su, D.
Iijima, T.
Funakubo, H.
TI Influence of Epitaxial Growth Orientation on Residual Strain and
Dielectric Properties of (Ba0.3Sr0.7)TiO3 Films Grown on In-Plane
Compressive Substrates
SO FERROELECTRICS
LA English
DT Article
DE Ferroelectrics; epitaxial films; strain; growth orientation; phase
transition
ID THIN-FILMS
AB Orientation dependence of the strain in epitaxial (Ba0.3Sr0.7)TiO3 films and the dielectric properties have been investigated using in-plane compressive substrates. (100)- and (111)-epitaxial films were grown on (100)- and (111)-cSrRuO3/SrTiO3 substrates by rf magnetron sputtering. The residual strain was found to be remarkably different in those films. The (100)-epitaxial films are fully constrained by the substrate, resulting in the large in-plane compressive strain. On the other hand, the (111)-epitaxial films are almost fully relaxed. As results, for the (100)-epitaxial films, the apparent Curie-Weiss temperature was much higher than that of unstrained bulks. This trend was also confirmed for the films on SrRuO3/(La0.3Sr0.7)(Al0.65Ta0.35)O3 substrates.
C1 [Yamada, T.; Kamo, T.; Funakubo, H.] Tokyo Inst Technol, Dept Innovat & Engineered Mat, Yokohama, Kanagawa 2268502, Japan.
[Su, D.] Brookhaven Natl Lab, Ctr Funct Nanomat, New York, NY 11973 USA.
[Iijima, T.] Natl Inst Adv Ind Sci & Technol, Res Ctr Hydrogen Ind Use & Storage, Tsukuba, Ibaraki 3058565, Japan.
RP Yamada, T (reprint author), Tokyo Inst Technol, Dept Innovat & Engineered Mat, Yokohama, Kanagawa 2268502, Japan.
EM yamada.t.al@m.titech.ac.jp
RI Yamada, Tomoaki/I-6538-2014; Su, Dong/A-8233-2013
OI Yamada, Tomoaki/0000-0001-5790-9029; Su, Dong/0000-0002-1921-6683
FU Tokyo Institute of Technology; KAKENHI [20860036]; U.S. Department of
Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]
FX The work of TY was supported by Global COE program at Tokyo Institute of
Technology and KAKENHI (20860036). The work of DS is supported by the
U.S. Department of Energy, Office of Basic Energy Sciences, under
Contract No. DE-AC02-98CH10886.
NR 6
TC 5
Z9 5
U1 0
U2 6
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0015-0193
J9 FERROELECTRICS
JI Ferroelectrics
PY 2010
VL 405
BP 262
EP 267
AR PII 930385747
DI 10.1080/00150193.2010.483391
PG 6
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA 688YW
UT WOS:000284894400038
ER
PT J
AU Bussmann-Holder, A
Bishop, AR
Simon, A
AF Bussmann-Holder, A.
Bishop, A. R.
Simon, A.
TI SrTiO3: From Quantum Paraelectric to Superconducting
SO FERROELECTRICS
LA English
DT Article
DE Quantum paraelectrics; superconductivity; SrTiO3
ID FERROELECTRICITY; TRANSITION
AB SrTiO3 exhibits unusually complex ground states which reach from insulating quantum paraelectric to poor metallic behavior depending on doping and/or oxygen stoichiometry where superconductivity might appear. Upon Nb doping two-gap superconductivity is induced and with this the first two-gap superconductor realized long after its theoretical prediction. Here we concentrate on this state and show that Nb doped SrTiO3 is the most unconventional multi-band superconductor of known multi-band superconductors since the smaller of the two superconducting gaps deviates substantially from a BCS temperature dependence. We attribute these deviations to two cooperating effects, namely an extreme anisotropy in the frequency dependent effective attractive interactions, involving one very soft mode, and an almost vanishing interband interaction. As a consequence, the superfluid density of Nb doped SrTiO3 is predicted to exhibit an inflection point close to the superconducting transition temperature T-c and not-as seen in other multi-band superconductors-close to T = 0 K.
C1 [Bussmann-Holder, A.; Simon, A.] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
[Bishop, A. R.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Bussmann-Holder, A (reprint author), Max Planck Inst Festkorperforsch, Heisenbergstr 1, D-70569 Stuttgart, Germany.
EM a.bussmann-holder@fkf.mpg.de
NR 26
TC 3
Z9 3
U1 2
U2 21
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0015-0193
J9 FERROELECTRICS
JI Ferroelectrics
PY 2010
VL 400
BP 19
EP 26
DI 10.1080/00150193.2010.505528
PG 8
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA 683LF
UT WOS:000284476600011
ER
PT J
AU Burkovsky, R
Vakhrushev, SB
Shapiro, SM
Ivanov, A
Hirota, K
Matsuura, M
AF Burkovsky, R.
Vakhrushev, S. B.
Shapiro, S. M.
Ivanov, A.
Hirota, K.
Matsuura, M.
TI Inelastic and Quasielastic Neutron Scattering in PbMg1/3Nb2/3O3 Above
the Burns Temperature
SO FERROELECTRICS
LA English
DT Article
DE Relaxors; PMN crystal; neutron scattering; soft mode
ID RELAXOR FERROELECTRIC PBMG1/3NB2/3O3; X-RAY-SCATTERING; NIOBATE
SINGLE-CRYSTALS; RANDOM-FIELD THEORY; LEAD MAGNONIOBATE; MODEL;
CERAMICS; DIFFRACTION; BEHAVIOR
AB We present here the results of the study of the true paraelectric phase of PMN via neutron inelastic and quasielastic scattering. Inelastic data for two different Brillouin Zones were treated simultaneously in terms of the 2-mode approach for the lowest TO mode. We have confirmed that 2-mode description allows removing the contradictions between the temperature dependences of the soft-mode frequency and the dielectric susceptibility existing in the single mode model. The diffuse scattering was mapped in three Brillouin zones and substantial anisotropy of the 2-d intensity distribution was found that was not reported before. Treatment of data in terms of Huang scattering produced satisfactory description of the experimental data. It is shown that broad satellite peaks close to the main Bragg reflections in our case can be described in terms of instrumental resolution.
C1 [Burkovsky, R.; Vakhrushev, S. B.] St Petersburg State Tech Univ, St Petersburg 195251, Russia.
[Vakhrushev, S. B.] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia.
[Shapiro, S. M.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
[Ivanov, A.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France.
[Hirota, K.] Osaka Univ, Osaka 5600043, Japan.
[Matsuura, M.] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan.
RP Vakhrushev, SB (reprint author), St Petersburg State Tech Univ, St Petersburg 195251, Russia.
EM s.vakhrushev@mail.ioffe.ru
RI Matsuura, Masato/C-2827-2013; Vakhrushev, Sergey/A-9855-2011
OI Matsuura, Masato/0000-0003-4470-0271; Vakhrushev,
Sergey/0000-0003-4867-1404
FU RFBR [08-02-00908-a, 06-02-90088-NSF-a]; RAS; Federal Program
"Scientific and Educational Staff of Innovative Russia; ISSP, University
of Tokyo
FX It is a pleasure to acknowledge R. Blinc, B. Dorner, T. Egami, P.
Gehring, M. Glinchuk, V. Sakhnenko, G. Shirane, D. Strauch, V.
Stephanovich for the many useful discussions and various suggestions.
Work was supported by the RFBR (grants 08-02-00908-a and
06-02-90088-NSF-a), program RAS "Neutron research of matter" and Federal
Program "Scientific and Educational Staff of Innovative Russia
2009-2013". Work of SBV in Japan was supported by visiting professorship
from ISSP, University of Tokyo.
NR 58
TC 2
Z9 2
U1 0
U2 10
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
SN 0015-0193
EI 1563-5112
J9 FERROELECTRICS
JI Ferroelectrics
PY 2010
VL 400
BP 372
EP 386
DI 10.1080/00150193.2010.505858
PG 15
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA 683LF
UT WOS:000284476600046
ER
PT S
AU Burnett, DC
Sheaffer, D
AF Burnett, David C.
Sheaffer, Donald, Jr.
BE Mendez, A
Du, HH
Wang, A
Udd, E
Mihailov, SJ
TI Component field testing for SWPIDS: a shallow-water perimeter intrusion
detection system
SO FIBER OPTIC SENSORS AND APPLICATIONS VII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Fiber Optic Sensors and Applications VII
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE fiber applications; fiber optic sensors; detection; intrusion; water
AB Field testing of fiber-based security sensors for use in Shallow-Water Perimeter Intrusion Detection System (SWPIDS) is presented in this paper. These devices were evaluated for continued performance and environmental resilience while deployed in a shallow-water marine environment for several months. These devices were previously untested in such conditions, and were evaluated for consideration in a high-security, low-nuisance alarm, environmentally-friendly underwater security system. The tested sensors include a breach-sensitive stainless steel grate and magnetic tamper switch, both from Woven Electronics, Inc., and a disturbance-sensitive fiber cable from Fiber SenSys, LLC. Preliminary results are presented, including nuisance alarm rates, functionality over the trial period, and resistance to marine effects.
C1 [Burnett, David C.; Sheaffer, Donald, Jr.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Burnett, DC (reprint author), Sandia Natl Labs, 7011 East Ave, Livermore, CA 94550 USA.
EM dburne@sandia.gov; dons@sandia.gov
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8141-2
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7677
AR 767709
DI 10.1117/12.849961
PG 8
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSS30
UT WOS:000285624300007
ER
PT J
AU Shepherd, JF
Dewey, MW
Woodbury, AC
Benzley, SE
Staten, ML
Owen, SJ
AF Shepherd, Jason F.
Dewey, Mark W.
Woodbury, Adam C.
Benzley, Steven E.
Staten, Matthew L.
Owen, Steven J.
TI Adaptive mesh coarsening for quadrilateral and hexahedral meshes
SO FINITE ELEMENTS IN ANALYSIS AND DESIGN
LA English
DT Article
DE Quadrilateral; Hexahedral; Mesh; Coarsening; Simplification; Adaptivity;
Refinement
ID SIMULATIONS; GENERATION; ADAPTATION; PARALLEL
AB Mesh adaptation methods can improve the efficiency and accuracy of solutions to computational modeling problems. In many applications involving quadrilateral and hexahedral meshes, local modifications which maintain the original element type are desired. For triangle and tetrahedral meshes, effective refinement and coarsening methods that satisfy the secriteria are available. Refinement methods for quadrilateral and hexahedral meshes are also available. However, due to the added complexity of maintaining and satisfying constraints in quadrilateral and hexahedral mesh topology, little research has occurred in the area of coarsening or simplification. This paper presents methods to locally coarsen conforming all-quadrilateral and all-hexahedral meshes. The methods presented provide coarsening while maintaining conforming all-quadrilateral and all-hexahedral meshes. Additionally, the coarsening is not dependent on reversing a previous refinement. Several examples showing localized coarsening are provided. Published by Elsevier B.V.
C1 [Shepherd, Jason F.; Staten, Matthew L.; Owen, Steven J.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Woodbury, Adam C.; Benzley, Steven E.] Brigham Young Univ, Provo, UT 84602 USA.
[Staten, Matthew L.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
RP Shepherd, JF (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
EM jfsheph@sandia.gov; markwdewey@gmail.com; aw18@byu.net; seb@et.byu.edu;
mlstate@sandia.gov; sjowen@sandia.gov
NR 37
TC 15
Z9 16
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-874X
EI 1872-6925
J9 FINITE ELEM ANAL DES
JI Finite Elem. Anal. Des.
PD JAN-FEB
PY 2010
VL 46
IS 1-2
BP 17
EP 32
DI 10.1016/j.finel.2009.06.024
PG 16
WC Mathematics, Applied; Mechanics
SC Mathematics; Mechanics
GA 525CI
UT WOS:000272190300003
ER
PT S
AU Cooper, PS
AF Cooper, Peter S.
BE DOlivio, JC
Frank, A
LopezFernandez, R
Perez, MA
TI Searching for Dark Matter with a Bubble Chamber
SO FIRST CINVESTAV-UNAM SYMPOSIUM ON HIGH ENERGY PHYSICS: DEDICATED TO THE
MEMORY OF AGUSTO GARCIA
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st CINVESTAVUNAM Symposium on High Energy Physics
CY NOV 30-DEC 01, 2009
CL Mexico City, MEXICO
SP Univ Nacl Autonoma Mexico, CINVESTAV, CONACyt
DE Bubble Chamber; Dark Matter
AB The Chicago land Observatory for Underground Particle Physics (COUPP) recently reported first Physics results from an engineering prototype dark matter detector consisting of a I liter, room temperature, heavy liquid bubble chamber. These results close the last open window in low mass spin dependent WIMP scattering for a conventional WIMP interpretation of the DAMA annual modulation signal. I will discuss these results and the detector techniques which enabled them.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Cooper, PS (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0808-1
J9 AIP CONF PROC
PY 2010
VL 1259
BP 38
EP 44
DI 10.1063/1.3479303
PG 7
WC Physics, Particles & Fields
SC Physics
GA BRO44
UT WOS:000283263300004
ER
PT S
AU Jensen, DA
AF Jensen, D. A.
BE DOlivio, JC
Frank, A
LopezFernandez, R
Perez, MA
TI A New Proposal to Measure K(+) -> pi(+) v(v)over-bar
SO FIRST CINVESTAV-UNAM SYMPOSIUM ON HIGH ENERGY PHYSICS: DEDICATED TO THE
MEMORY OF AGUSTO GARCIA
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st CINVESTAVUNAM Symposium on High Energy Physics
CY NOV 30-DEC 01, 2009
CL Mexico City, MEXICO
SP Univ Nacl Autonoma Mexico, CINVESTAV, CONACyt
DE K decay; CP violation
AB Do not replace the word "abstract," but do replace the rest of this text. Text should remain 10-pt. If you must insert a hard line break, please use Shift+Enter rather than just tapping your "Enter" key. You may want to print this page and refer to it as a style sample before you begin working on your paper. For an experimentalist in high energy physics, the most interesting experiments that one should pursue is often well known. The very rare CP violating decay of the kaon into a pion and two neutrinos ( both the charged and neutral modes) is such an experiment. We have recently proposed the charged kaon experiment to Fermilab as proposal P966. We present her a general overview of that proposal. The goal is to obtain of order 1000 events in order to confront the expected theoretical calculations and to search for physics beyond the standard model.
C1 Fermi Natl Lab, Batavia, IL 60510 USA.
RP Jensen, DA (reprint author), Fermi Natl Lab, POB 510, Batavia, IL 60510 USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0808-1
J9 AIP CONF PROC
PY 2010
VL 1259
BP 66
EP 73
PG 8
WC Physics, Particles & Fields
SC Physics
GA BRO44
UT WOS:000283263300007
ER
PT S
AU Lach, J
AF Lach, Joseph
BE DOlivio, JC
Frank, A
LopezFernandez, R
Perez, MA
TI Accelerators Beyond The Tevatron?
SO FIRST CINVESTAV-UNAM SYMPOSIUM ON HIGH ENERGY PHYSICS: DEDICATED TO THE
MEMORY OF AGUSTO GARCIA
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st CINVESTAVUNAM Symposium on High Energy Physics
CY NOV 30-DEC 01, 2009
CL Mexico City, MEXICO
SP Univ Nacl Autonoma Mexico, CINVESTAV, CONACyt
DE UNK; SSC; LHC; Tevatron
AB Following the successful operation of the Fermilab superconducting accelerator three new higher energy accelerators were planned. They were the UNK in the Soviet Union, the LHC in Europe, and the SSC in the United States. All were expected to start producing physics about 1995. They did not. Why?
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Lach, J (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0808-1
J9 AIP CONF PROC
PY 2010
VL 1259
BP 74
EP 82
DI 10.1063/1.3479308
PG 9
WC Physics, Particles & Fields
SC Physics
GA BRO44
UT WOS:000283263300008
ER
PT S
AU Freese, K
Ruiz, E
Valluri, M
Ilie, C
Spolyar, D
Bodenheimer, P
AF Freese, Katherine
Ruiz, Eduardo
Valluri, Monica
Ilie, Cosmin
Spolyar, Douglas
Bodenheimer, Peter
BE Whalen, D
Bromm, V
Yoshida, N
TI Supermassive Dark Stars: Detectable by JWST and HST
SO FIRST STARS AND GALAXIES: CHALLENGES FOR THE NEXT DECADE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st International Conference on Stars and Galaxies: Challenges for the
Next Decade
CY MAR 08-11, 2010
CL Austin, TX
SP UT Austin, Dept Astronomy Board Visitors Excellence Funds, UT Austin, McDonald Observ, Texas Cosmol Ctr, Los Alamos Natl Lab, Tokyo Univ, Inst Phys & Math Universe, Texas Adv Comp Ctr
DE Dark Matter; Early Universe Stars
ID WEBB-SPACE-TELESCOPE; ULTRA DEEP FIELD; TO 8 GALAXIES; 1ST STARS; MATTER
ANNIHILATION; DISCOVERY
AB The first stars in the universe may have been powered by dark matter annihilation rather than by fusion. This novel kind of stellar evolution may have lasted millions or billions of years. Such "dark stars" can grow to be very massive, > 10(5)M(circle dot), and are relatively cool (similar to 10(4) K). They are also very bright and may be detectable by the upcoming James Webb Space Telescope or even by the Hubble Space Telescope. Once their dark matter fuel is expended, dark stars have a short fusion phase before collapsing into black holes (BH). These BH could be the seeds of the supermassive black holes found at the centers of massive galaxies at high redshift.
C1 [Freese, Katherine; Ruiz, Eduardo; Ilie, Cosmin] Univ Michigan, Dept Phys, Michigan Ctr Theoret Phys, Ann Arbor, MI 48109 USA.
[Valluri, Monica] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
[Spolyar, Douglas] Fermilab Natl Accelerator Lab, Ctr Particle Astron, POB 500, Batavia, IL 60510 USA.
[Bodenheimer, Peter] Univ Calif Santa Cruz, UCO Lick Observ, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
RP Freese, K (reprint author), Univ Michigan, Dept Phys, Michigan Ctr Theoret Phys, Ann Arbor, MI 48109 USA.
NR 38
TC 2
Z9 2
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0849-4
J9 AIP CONF PROC
PY 2010
VL 1294
BP 45
EP +
PG 3
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BTZ41
UT WOS:000288517300007
ER
PT S
AU Fryer, CL
Whalen, DJ
Frey, L
AF Fryer, Chris L.
Whalen, Daniel J.
Frey, Lucy
BE Whalen, D
Bromm, V
Yoshida, N
TI Modeling Emission from the First Explosions: Pitfalls and Problems
SO FIRST STARS AND GALAXIES: CHALLENGES FOR THE NEXT DECADE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st International Conference on Stars and Galaxies: Challenges for the
Next Decade
CY MAR 08-11, 2010
CL Austin, TX
SP UT Austin, Dept Astronomy Board Visitors Excellence Funds, UT Austin, McDonald Observ, Texas Cosmol Ctr, Los Alamos Natl Lab, Tokyo Univ, Inst Phys & Math Universe, Texas Adv Comp Ctr
DE Population III stars; Supernovae; Radiation processes
ID SUPERNOVAE
AB Observations of the explosions of Population III (Pop III) stars have the potential to teach us much about the formation and evolution of these zero-metallicity objects. To realize this potential, we must tie observed emission to an explosion model, which requires accurate light curve and spectra calculations. Here, we discuss many of the pitfalls and problems involved in such models, presenting some preliminary results from radiation-hydrodynamics simulations.
C1 [Fryer, Chris L.; Frey, Lucy] Los Alamos Natl Lab, CCS 2,MSD409, Los Alamos, NM 87545 USA.
[Whalen, Daniel J.] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15123 USA.
[Frey, Lucy] Los Alamos Natl Lab, XTD 6, MSD 409, POB 1663, Los Alamos, NM 87545 USA.
RP Fryer, CL (reprint author), Los Alamos Natl Lab, CCS 2,MSD409, Los Alamos, NM 87545 USA.
OI Frey, Lucille/0000-0002-5478-2293
FU DE-AC52-06NA25396; McWilliams Fellowship; Bruce and Astrid McWilliams
Center for Cosmology at Carnegie Mellon University
FX This work was carried out in part under the auspices of the National
Nuclear Security Administration of the U.S. Department of Energy at Los
Alamos National Laboratory supported by Contract No. DE-AC52-06NA25396.
DJW was supported by the McWilliams Fellowship at the Bruce and Astrid
McWilliams Center for Cosmology at Carnegie Mellon University.
NR 5
TC 13
Z9 13
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0849-4
J9 AIP CONF PROC
PY 2010
VL 1294
BP 70
EP +
PG 2
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BTZ41
UT WOS:000288517300012
ER
PT S
AU Chen, KJ
Heger, A
Almgren, AS
AF Chen, Ke-Jung
Heger, Alexander
Almgren, Ann S.
BE Whalen, D
Bromm, V
Yoshida, N
TI Two-Dimensional Simulations of Pair-Instability Supernovae
SO FIRST STARS AND GALAXIES: CHALLENGES FOR THE NEXT DECADE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st International Conference on Stars and Galaxies: Challenges for the
Next Decade
CY MAR 08-11, 2010
CL Austin, TX
SP UT Austin, Dept Astronomy Board Visitors Excellence Funds, UT Austin, McDonald Observ, Texas Cosmol Ctr, Los Alamos Natl Lab, Tokyo Univ, Inst Phys & Math Universe, Texas Adv Comp Ctr
DE Stellar evolution; Massive star; Pair-instability supernovae
ID EVOLUTION; UNIVERSE; STARS
AB We present preliminary results from two-dimensional numerical studies of nuclear burning and hydrodynamic instabilities in pair-instability supernova (PSN) performed with the new radiation-hydrodynamics code CASTRO.
C1 [Chen, Ke-Jung; Heger, Alexander] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Almgren, Ann S.] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Chen, KJ (reprint author), Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
FU DOE SciDAC program [DOE-DE-SC0002300]
FX The authors would like to thank the Center for Computational Sciences
and Engineering (CCSE) at LBNL for their invaluable support with CASTRO.
The simulations were performed at the Minnesota Supercomputer Institute.
This project was supported by the DOE SciDAC program under grant
DOE-DE-SC0002300.
NR 8
TC 0
Z9 0
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0849-4
J9 AIP CONF PROC
PY 2010
VL 1294
BP 255
EP +
PG 2
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BTZ41
UT WOS:000288517300043
ER
PT S
AU Hueckstaedt, R
Whalen, D
McConkie, T
AF Hueckstaedt, Robert
Whalen, Daniel
McConkie, Thomas
BE Whalen, D
Bromm, V
Yoshida, N
TI Local Radiative Feedback: The Rise of Early Stellar Populations
SO FIRST STARS AND GALAXIES: CHALLENGES FOR THE NEXT DECADE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st International Conference on Stars and Galaxies: Challenges for the
Next Decade
CY MAR 08-11, 2010
CL Austin, TX
SP UT Austin, Dept Astronomy Board Visitors Excellence Funds, UT Austin, McDonald Observ, Texas Cosmol Ctr, Los Alamos Natl Lab, Tokyo Univ, Inst Phys & Math Universe, Texas Adv Comp Ctr
DE Population III stars
ID STAR-FORMATION; III-STARS; PHOTOEVAPORATION; REIONIZATION; MASS
AB How the first stars regulated the formation of later generations by their intense UV flux is key to the assembly of primeval galaxies, the rise of the first stellar populations, and the onset of cosmological reionization. It is commonly held that photoevaporation of cosmological halos by nearby Pop III stars quenched new star formation. We present a survey of halo photoevaporation by high-mass and low-mass primordial stars with simulations that self-consistently solve hydrodynamics, radiative transfer, and primordial gas chemistry. We find that ionizing and LW radiative feedback from a nearby star is much less destructive to star formation than is generally believed, and that it can even accelerate the collapse of baryons into new stars in some cases.
C1 [Hueckstaedt, Robert] Los Alamos Natl Lab, POB 1663,MS T086, Los Alamos, NM 87545 USA.
[Whalen, Daniel] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA.
[McConkie, Thomas] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA.
RP Hueckstaedt, R (reprint author), Los Alamos Natl Lab, POB 1663,MS T086, Los Alamos, NM 87545 USA.
NR 8
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0849-4
J9 AIP CONF PROC
PY 2010
VL 1294
BP 264
EP +
PG 2
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BTZ41
UT WOS:000288517300048
ER
PT S
AU Joggerst, CC
AF Joggerst, C. C.
BE Whalen, D
Bromm, V
Yoshida, N
TI 3D Simulations of Core-Collapse SNe
SO FIRST STARS AND GALAXIES: CHALLENGES FOR THE NEXT DECADE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st International Conference on Stars and Galaxies: Challenges for the
Next Decade
CY MAR 08-11, 2010
CL Austin, TX
SP UT Austin, Dept Astronomy Board Visitors Excellence Funds, UT Austin, McDonald Observ, Texas Cosmol Ctr, Los Alamos Natl Lab, Tokyo Univ, Inst Phys & Math Universe, Texas Adv Comp Ctr
DE Core-collapse supernovae; simulations; Rayleigh-Taylor instability
AB Simulations of Rayleigh-Taylor (RT) induced mixing in spherically symmetric core-collapse supernova (SN) explosions are performed in both 2D and 3D. When the only intial perturbation is that arising from the grid, the final state of the 2D and 3D simulations are essentially the same for a variety of presupernova progenitor models.
C1 Los Alamos Natl Lab, UC Santa Cruz, Los Alamos, NM USA.
RP Joggerst, CC (reprint author), Los Alamos Natl Lab, UC Santa Cruz, T-2, Los Alamos, NM USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0849-4
J9 AIP CONF PROC
PY 2010
VL 1294
BP 266
EP 267
PG 2
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BTZ41
UT WOS:000288517300049
ER
PT S
AU Sobeck, J
Frohlich, C
Truran, J
Kim, Y
AF Sobeck, Jennifer
Frohlich, Carla
Truran, Jim
Kim, Yeunjin
BE Whalen, D
Bromm, V
Yoshida, N
TI Galactic Chemical Evolution of the Iron Peak Elements in the Lowest
Metallicity Regimes
SO FIRST STARS AND GALAXIES: CHALLENGES FOR THE NEXT DECADE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 1st International Conference on Stars and Galaxies: Challenges for the
Next Decade
CY MAR 08-11, 2010
CL Austin, TX
SP UT Austin, Dept Astronomy Board Visitors Excellence Funds, UT Austin, McDonald Observ, Texas Cosmol Ctr, Los Alamos Natl Lab, Tokyo Univ, Inst Phys & Math Universe, Texas Adv Comp Ctr
DE Galactic chemical evolution; abundances; yields
ID ZINC
AB We use the nucleosynthetic yields of Chieffi & Limongi (2004) in conjunction with a Salpeter initial mass function (IMF) to determine the evolution of iron peak element abundances (Z = 21-28) as a function of metallicity. Since we will focus on the extremely metal poor region below [Fe/H] = -1.5, we will consider input from core collapse supernovae (SNe) only, as chemical enrichment from Type la SNe is minimal at low metallicities (e.g. Kobayashi & Nomoto (2009) and references therein). For the Fe-peak elements, we will evaluate the relative agreement between theoretical yield calculations and recently-acquired observational data. We will determine the yield dependence on metallicity and compare our results to those of Kobayashi et al. (2006). It is our eventual goal to employ alternate IMF's in order to examine the resulting effects on the iron group abundance ratios.
C1 [Sobeck, Jennifer; Frohlich, Carla; Truran, Jim; Kim, Yeunjin] Univ Chicago, Argonne Natl Lab, Chicago, IL 60637 USA.
RP Sobeck, J (reprint author), Univ Chicago, Argonne Natl Lab, Chicago, IL 60637 USA.
RI Frohlich, Carla/C-4841-2012
NR 5
TC 1
Z9 1
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0849-4
J9 AIP CONF PROC
PY 2010
VL 1294
BP 287
EP 288
PG 2
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BTZ41
UT WOS:000288517300059
ER
PT J
AU McMichael, GA
Eppard, MB
Carlson, TJ
Carter, JA
Ebberts, BD
Brown, RS
Weiland, M
Ploskey, GR
Harnish, RA
Deng, ZD
AF McMichael, Geoffrey A.
Eppard, M. Brad
Carlson, Thomas J.
Carter, Jessica A.
Ebberts, Blaine D.
Brown, Richard S.
Weiland, Mark
Ploskey, Gene R.
Harnish, Ryan A.
Deng, Z. Daniel
TI The Juvenile Salmon Acoustic Telemetry System: A New Tool
SO FISHERIES
LA English
DT Article
ID INTEGRATED TRANSPONDER TAGS; YEARLING CHINOOK SALMON;
ONCORHYNCHUS-TSHAWYTSCHA; COLUMBIA RIVERS; SWIMMING PERFORMANCE;
POSITION ACCURACY; HYDROPHONE ARRAY; SURVIVAL; RADIO; SNAKE
AB Limitations of biotelemetry technology available in 2001 prompted the U. S. Army Corps of Engineers Portland District to develop a new acoustic telemetry system to monitor survival of juvenile salmonids through the Columbia River to the Pacific Ocean. Eight years later, the Juvenile Salmon Acoustic Telemetry System (JSATS) consists of microacoustic transmitters (12 mm long, 0.43 g weight in air), autonomous and cabled receiving systems, and data management and processing applications. Transmitter pulse rate can be user-defined and as configured for this case study was set at 5 seconds, with an estimated tag life of 30 days and detection range of 300 m. Before JSATS development, no technology existed to study movement and survival of fish smaller than 10 g migrating long distances from freshwater and into saltwater. In a 2008 study comparing detection probabilities, travel times, and survival of 4,140 JSATS-tagged and 48,433 passive integrated transponder (PIT)tagged yearling Chinook salmon (Oncorhynchus tshawytscha; mean fork length 133.9 and 135.3 mm, for JSATS and PIT-tagged fish, respectively) migrating the Snake and Columbia rivers to the Pacific, the JSATS provided survival estimates at more locations with greater precision, using less than one-tenth as many tagged fish as the traditional PIT-tag system. While designed to be optimized for juvenile salmonid survival assessment in the Columbia River basin, JSATS technology may be used in a variety of environments. Information regarding different acoustic telemetry systems from various vendors is presented and discussed relative to the nonproprietary JSATS.
C1 [McMichael, Geoffrey A.; Carlson, Thomas J.; Carter, Jessica A.; Brown, Richard S.; Weiland, Mark; Ploskey, Gene R.; Harnish, Ryan A.; Deng, Z. Daniel] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Eppard, M. Brad; Ebberts, Blaine D.] USA, Corps Engineers, Portland, OR USA.
RP McMichael, GA (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM Geoffrey.Mcmichael@pnl.gov
RI Deng, Daniel/A-9536-2011
OI Deng, Daniel/0000-0002-8300-8766
NR 38
TC 84
Z9 85
U1 1
U2 24
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE SUITE 110, BETHESDA, MD 20814-2199 USA
SN 0363-2415
J9 FISHERIES
JI Fisheries
PD JAN
PY 2010
VL 35
IS 1
BP 9
EP 22
DI 10.1577/1548-8446-35.1.9
PG 14
WC Fisheries
SC Fisheries
GA 588ZJ
UT WOS:000277113100003
ER
PT S
AU Murph, SEH
Serkiz, SM
Fox, EB
Colon-Mercado, H
Sexton, L
Siegfried, M
AF Murph, Simona E. Hunyadi
Serkiz, Steven M.
Fox, Elise B.
Colon-Mercado, Hector
Sexton, Lindsay
Siegfried, Matthew
BE Nelson, DJ
Brammer, CN
TI Synthesis, Functionalization, Characterization, and Application of
Controlled Shape Nanoparticles in Energy Production
SO FLUORINE-RELATED NANOSCIENCE WITH ENERGY APPLICATIONS
SE ACS Symposium Series
LA English
DT Article; Book Chapter
ID SURFACE-ENHANCED RAMAN; SUPPORTED PLATINUM CATALYSTS; OXYGEN-REDUCTION
REACTION; TEMPERATURE CO OXIDATION; HIGHLY DISPERSED GOLD; MEMBRANE
FUEL-CELL; METAL NANOPARTICLES; AQUEOUS-SOLUTION; PARTICLE-SIZE;
BIMETALLIC NANOPARTICLES
AB In this chapter we present recent advances in synthesis, characterization, optical, catalytic and physico-chemical properties of nanoscale materials with potential applications in fuel cells processes. In particular, this review and original research focuses on the catalytic properties of noble metal nanoparticles (e.g., platinum, gold and silver) as a function of particles morphology and composition (e.g., isotropic and anisotropic, solid, hollow and core-shell structures, and mono-and bi- metallic compositions, supported and unsupported).
C1 [Murph, Simona E. Hunyadi; Serkiz, Steven M.; Fox, Elise B.; Colon-Mercado, Hector; Sexton, Lindsay; Siegfried, Matthew] Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Murph, SEH (reprint author), Savannah River Natl Lab, Savannah River Site, Aiken, SC 29808 USA.
EM Simona.Murph@srnl.doe.gov
NR 122
TC 2
Z9 2
U1 0
U2 7
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2610-4
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2010
VL 1064
BP 127
EP 163
PG 37
WC Chemistry, Applied; Energy & Fuels; Nanoscience & Nanotechnology
SC Chemistry; Energy & Fuels; Science & Technology - Other Topics
GA BAQ14
UT WOS:000305161400008
ER
PT S
AU Geshi, N
Petersen, BL
Scheller, HV
AF Geshi, Naomi
Petersen, Bent Larsen
Scheller, Henrik Vibe
BE Gershwin, ME
Greenwood, MRC
TI Toward tailored synthesis of functional polysaccharides in plants
SO FOODS FOR HEALTH IN THE 21ST CENTURY: A ROAD MAP FOR THE FUTURE
SE Annals of the New York Academy of Sciences
LA English
DT Article; Proceedings Paper
CT Conference on Foods for Health in the 21st Century - A Road Map for the
Future
CY NOV 16-18, 2008
CL Univ Calif Davis, Davis, CA
HO Univ Calif Davis
DE plant gum; dietary fibers; functional food; pathway engineering; systems
biology
ID FENUGREEK GALACTOMANNAN GALACTOSYLTRANSFERASE; STRUCTURALLY ALTERED
GALACTOMANNANS; CYAMOPSIS-TETRAGONOLOBA L.; ENDOSPERM CELL-WALLS; GUAR
GUM; XYLOGLUCAN BIOSYNTHESIS; MANNAN SYNTHASE; MIXED-LINKAGE;
ARABIDOPSIS; GENE
AB Polysaccharides derived from plant cell wall materials play an important role in our diet. Dietary fibers work as prebiotics in the human gut, and some plant polysaccharides are known to have more direct beneficial impacts on human health. In the food industry, plant fiber materials, such as gums are widely used as structural ingredients. Complex polysaccharides account for most of the plant cell wall, and their biosynthetic pathways and their regulation are largely unknown. Systematic collaborative efforts for defining the structure and impact on human health of beneficial fibers and elucidating the biosynthetic pathways and their regulation will open a great potential for biotechnological applications.
C1 [Geshi, Naomi; Scheller, Henrik Vibe] Univ Copenhagen, Dept Plant Biol & Biotechnol, Fac Life Sci, VKR Res Ctr Proact Plants, DK-1871 Frederiksberg C, Denmark.
[Petersen, Bent Larsen] Univ Irhus, Fac Agr Sci, Irhus, Denmark.
[Scheller, Henrik Vibe] Lawrence Berkeley Lab, Feedstocks Div, Joint BioEnergy Inst, Emeryville, CA USA.
RP Geshi, N (reprint author), Univ Copenhagen, Dept Plant Biol & Biotechnol, Fac Life Sci, VKR Res Ctr Proact Plants, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark.
EM nge@life.ku.dk
RI Scheller, Henrik/A-8106-2008; Petersen, Bent/H-9437-2014
OI Scheller, Henrik/0000-0002-6702-3560; Petersen, Bent/0000-0002-2004-9077
NR 44
TC 3
Z9 3
U1 0
U2 4
PU BLACKWELL PUBLISHING
PI OXFORD
PA 9600 GARSINGTON RD, OXFORD OX4 2DQ, OXEN, ENGLAND
SN 0077-8923
BN 978-1-57331-763-4
J9 ANN NY ACAD SCI
JI Ann.NY Acad.Sci.
PY 2010
VL 1190
BP 50
EP 57
DI 10.1111/j.1749-6632.2009.05267.x
PG 8
WC Multidisciplinary Sciences; Nutrition & Dietetics
SC Science & Technology - Other Topics; Nutrition & Dietetics
GA BOX97
UT WOS:000277992500005
PM 20388136
ER
PT B
AU Frigo, JR
Raby, EY
Brennan, S
Wolinski, C
Wagner, C
Charot, F
Rosten, E
Kulathumani, VK
AF Frigo, Jan R.
Raby, Eric Y.
Brennan, Sean
Wolinski, Christophe
Wagner, Charles
Charot, Francois
Rosten, Edward
Kulathumani, Vinod K.
GP ACM
TI Energy Efficient Sensor Node Implementations
SO FPGA 10
LA English
DT Proceedings Paper
CT 18th ACM International Symposium on Field-Programmable Gate Arrays
CY FEB 21-23, 2010
CL Monterey, CA
SP ACM SIGDA, Actel, Altera, Xilinx, Trimberger Family Fdn
DE FPGA; DSP; Distributed Sensor Network (DSN); seismic; acoustic; video;
vehicle classification
AB In this paper, we discuss a low power embedded sensor node architecture we are developing for distributed sensor network systems deployed in a natural environment. In particular, we examine the sensor node for energy efficient processing-at-the-sensor. We analyze the following modes of operation; event detection, data acquisition, and data processing using low power, high performance embedded technology such as specialized embedded DSP processors and low power FPGAs at the sensing node. We use compute intensive sensor node applications: an acoustic vehicle classifier (frequency domain analysis) and a video license plate identification application (learning algorithm). We report performance and energy for these applications and discuss the system architecture design trade offs.
C1 [Frigo, Jan R.; Raby, Eric Y.; Brennan, Sean] Los Alamos Natl Lab, Los Alamos, NM USA.
RP Frigo, JR (reprint author), Los Alamos Natl Lab, ISR-3,MSD440, Los Alamos, NM USA.
EM jfrigo@lanl.gov; raby@lanl.gov; brennan@lanl.gov; wolinski@irisa.fr;
wagner@irisa.fr; charot@irisa.fr; er258@cam.ac.uk;
Vinod.Kulathumani@mail.wvu.edu
NR 6
TC 3
Z9 3
U1 0
U2 0
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA
BN 978-1-60558-911-4
PY 2010
BP 37
EP 40
PG 4
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BSN45
UT WOS:000285022000005
ER
PT J
AU Dowding, JM
Lubitz, S
Karakoti, A
Kim, A
Seal, S
Ellisman, M
Perkins, G
Bossy-Wetzel, E
Self, W
AF Dowding, Janet M.
Lubitz, Sarah
Karakoti, Ajay
Kim, Andrew
Seal, Sudipta
Ellisman, Mark
Perkins, Guy
Bossy-Wetzel, Ella
Self, William
TI Cerium Oxide Nanoparticles Prevent Nitrosative Stress in Neuronal Cell
Culture Model
SO FREE RADICAL BIOLOGY AND MEDICINE
LA English
DT Meeting Abstract
CT 17th Annual Meeting of the Society-for-Free-Radical-Biology-Medicine
/15th Biennial Meeting of the
Society-for-Free-Radical-Research-International
CY NOV 17-21, 2010
CL Orlando, FL
SP Soc Free Radi Biol Med, Soc Free Radi Res Int
C1 [Dowding, Janet M.; Lubitz, Sarah; Karakoti, Ajay; Seal, Sudipta; Bossy-Wetzel, Ella; Self, William] Univ Cent Florida, Orlando, FL 32816 USA.
[Karakoti, Ajay] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Kim, Andrew; Ellisman, Mark; Perkins, Guy] Univ Calif San Diego, San Diego, CA 92103 USA.
RI Self, William/A-6704-2008
NR 0
TC 3
Z9 3
U1 2
U2 6
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0891-5849
J9 FREE RADICAL BIO MED
JI Free Radic. Biol. Med.
PY 2010
VL 49
SU 1
BP S181
EP S181
DI 10.1016/j.freeradbiomed.2010.10.514
PG 1
WC Biochemistry & Molecular Biology; Endocrinology & Metabolism
SC Biochemistry & Molecular Biology; Endocrinology & Metabolism
GA 681VD
UT WOS:000284348000523
ER
PT J
AU Singh, S
Dowding, J
Karakoti, A
Seal, S
Self, W
AF Singh, Sanjay
Dowding, Janet
Karakoti, Ajay
Seal, Sudipta
Self, William
TI Cerium Oxide Nanoparticles Protect Cells Against Oxidative Stress
Induced by Glutathione Depletion
SO FREE RADICAL BIOLOGY AND MEDICINE
LA English
DT Meeting Abstract
CT 17th Annual Meeting of the Society-for-Free-Radical-Biology-Medicine
/15th Biennial Meeting of the
Society-for-Free-Radical-Research-International
CY NOV 17-21, 2010
CL Orlando, FL
SP Soc Free Radi Biol Med, Soc Free Radi Res Int
C1 [Singh, Sanjay; Dowding, Janet; Karakoti, Ajay; Seal, Sudipta; Self, William] Univ Cent Florida, Orlando, FL 32816 USA.
[Karakoti, Ajay] Pacific NW Natl Lab, Richland, WA 99352 USA.
RI Self, William/A-6704-2008
NR 0
TC 0
Z9 0
U1 0
U2 4
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0891-5849
J9 FREE RADICAL BIO MED
JI Free Radic. Biol. Med.
PY 2010
VL 49
SU 1
BP S198
EP S198
DI 10.1016/j.freeradbiomed.2010.10.574
PG 1
WC Biochemistry & Molecular Biology; Endocrinology & Metabolism
SC Biochemistry & Molecular Biology; Endocrinology & Metabolism
GA 681VD
UT WOS:000284348000583
ER
PT J
AU Efimov, A
AF Efimov, Anatoly
BE Pal, B
TI Time-Spectral Visualization of Fundamental Ultrafast Nonlinear-Optical
Interactions in Photonic Fibers
SO FRONTIERS IN GUIDED WAVE OPTICS AND OPTOELECTRONICS
LA English
DT Article; Book Chapter
ID BAND CONTINUUM GENERATION; SUPERCONTINUUM GENERATION; CRYSTAL FIBERS;
DISPERSION WAVELENGTH; PULSE-PROPAGATION; WIDE-BAND; ZERO; SOLITONS;
DYNAMICS; WAVE
C1 [Efimov, Anatoly] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
RP Efimov, A (reprint author), Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA.
NR 49
TC 0
Z9 0
U1 0
U2 0
PU INTECH EUROPE
PI RIJEKA
PA JANEZA TRDINE9, RIJEKA, 51000, CROATIA
BN 978-953-7619-82-4
PY 2010
BP 139
EP 164
D2 10.5772/3033
PG 26
WC Optics; Physics, Applied
SC Optics; Physics
GA BD7WK
UT WOS:000363651900009
ER
PT J
AU Lalonde, S
Sero, A
Pratelli, R
Pilot, G
Chen, J
Sardi, MI
Parsa, SA
Kim, DY
Acharya, BR
Stein, EV
Hu, HC
Villiers, F
Takeda, K
Yang, YZ
Han, YS
Schwacke, R
Chiang, W
Kato, N
Loque, D
Assmann, SM
Kwak, JM
Schroeder, JI
Rhee, SY
Frommer, WB
AF Lalonde, Sylvie
Sero, Antoinette
Pratelli, Rejane
Pilot, Guillaume
Chen, Jin
Sardi, Maria I.
Parsa, Saman A.
Kim, Do-Young
Acharya, Biswa R.
Stein, Erica V.
Hu, Heng-Chen
Villiers, Florent
Takeda, Kouji
Yang, Yingzhen
Han, Yong S.
Schwacke, Rainer
Chiang, William
Kato, Naohiro
Loque, Dominique
Assmann, Sarah M.
Kwak, June M.
Schroeder, Julian I.
Rhee, Seung Y.
Frommer, Wolf B.
TI A membrane protein/signaling protein interaction network for Arabidopsis
version AMPv2
SO FRONTIERS IN PHYSIOLOGY
LA English
DT Article
DE protein interaction; transport; split ubiquitin system; yeast two
hybrid; receptor; kinase; phosphorylation
AB Interactions between membrane proteins and the soluble fraction are essential for signal transduction and for regulating nutrient transport. To gain insights into the membrane-based interactome, 3,852 open reading frames (ORFs) out of a target list of 8,383 representing membrane and signaling proteins from Arabidopsis thaliana were cloned into a Gateway-compatible vector. The mating-based split ubiquitin system was used to screen for potential protein-protein interactions (pPPIs) among 490 Arabidopsis ORFs. A binary robotic screen between 142 receptor-like kinases (RLKs), 72 transporters, 57 soluble protein kinases and phosphatases, 40 glycosyltransferases, 95 proteins of various functions, and 89 proteins with unknown function detected 387 out of 90,370 possible PPIs. A secondary screen confirmed 343 (of 386) pPPIs between 179 proteins, yielding a scale-free network (r(2) = 0.863). Eighty of 142 transmembrane RLKs tested positive, identifying 3 homomers, 63 heteromers, and 80 pPPIs with other proteins. Thirty-one out of 142 RLK interactors (including RLKs) had previously been found to be phosphorylated; thus interactors may be substrates for respective RLKs. None of the pPPIs described here had been reported in the major interactome databases, including potential interactors of G-protein-coupled receptors, phospholipase C, and AMT ammonium transporters. Two RLKs found as putative interactors of AMT1; 1 were independently confirmed using a split luciferase assay in Arabidopsis protoplasts. These RLKs may be involved in ammonium-dependent phosphorylation of the C-terminus and regulation of ammonium uptake activity. The robotic screening method established here will enable a systematic analysis of membrane protein interactions in fungi, plants and metazoa.
C1 [Lalonde, Sylvie; Sero, Antoinette; Pratelli, Rejane; Pilot, Guillaume; Chen, Jin; Sardi, Maria I.; Parsa, Saman A.; Kim, Do-Young; Rhee, Seung Y.; Frommer, Wolf B.] Carnegie Inst Sci, Dept Plant Biol, Stanford, CA 94305 USA.
[Acharya, Biswa R.; Assmann, Sarah M.] Penn State Univ, Dept Biol, University Pk, PA 16802 USA.
[Stein, Erica V.; Yang, Yingzhen; Schroeder, Julian I.] Univ Calif San Diego, Div Biol Sci Cell & Dev Biol, San Diego, CA 92103 USA.
[Hu, Heng-Chen; Villiers, Florent; Takeda, Kouji; Han, Yong S.; Kwak, June M.] Univ Maryland, Dept Cell Biol & Mol Genet, College Pk, MD 20742 USA.
[Schwacke, Rainer] Univ Cologne, Botan Inst, D-50931 Cologne, Germany.
[Chiang, William; Kato, Naohiro] Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA.
[Loque, Dominique] Feedstocks, Joint BioEnergy Inst, Emeryville, CA USA.
RP Lalonde, S (reprint author), Carnegie Inst Sci, 260 Panama St, Stanford, CA 94305 USA.
EM slalonde@stanford.edu
RI Kwak, June/G-8332-2011; Kato, Naohiro/B-2353-2008; Frommer, Wolf
B/A-8256-2008; Loque, Dominique/A-8153-2008;
OI Stein, Erica/0000-0001-8778-8846; Schroeder, Julian/0000-0002-3283-5972;
Pilot, Guillaume/0000-0001-7520-1059
FU NSF [MCB-0618402]
FX We thank the following researchers for donating clones: Joe Ecker (Salk
Institute), Steven Clouse (NCSU), John M. Ward (University of
Minnesota), Heven Sze (University of Maryland), Alan Jones (UNC), Gary
Stacey (University of Missouri-Columbia), Henrik Vibe Scheller
(JBEI/LBNL), Sebastien Thomine (CNRS Gif-sur-Yvette), Christophe Maurel
(CNRS Montpellier), Klaus Harter (University of Tubingen), Ralph
Panstruga (MPI for Plant Breeding Research), Jiri Friml (Ghent
University), Markus Klein (Universitat Zurich), Enrico Martinoia
(Universitat Zurich), and many others (please see www.associomics.org).
We thank the ABRC stock center for distribution of the vectors and
clones. We thank Angela Lam (Carnegie), William Monsell (Penn State),
Aaron P. Smith (LSU), and Elena Batista (LSU) for excellent technical
assistance. This work was made possible by an NSF Arabidopsis 2010 grant
(MCB-0618402) to Wolf B. Frommer, Sarah M. Assmann, June M. Kwak, Seung
Y. Rhee, and Julian I. Schroeder.
NR 60
TC 56
Z9 57
U1 3
U2 18
PU FRONTIERS RESEARCH FOUNDATION
PI LAUSANNE
PA PO BOX 110, LAUSANNE, 1015, SWITZERLAND
SN 1664-042X
J9 FRONT PHYSIOL
JI Front. Physiol.
PY 2010
VL 1
AR 24
DI 10.3389/fphys.2010.00024
PG 14
WC Physiology
SC Physiology
GA V35UB
UT WOS:000209172400022
PM 21423366
ER
PT S
AU Martin, KE
Kopasz, JP
McMurphy, KW
AF Martin, Kathi Epping
Kopasz, John P.
McMurphy, Kevin W.
BE Herring, AM
Zawodzinski, TA
Hamrock, SJ
TI Status of Fuel Cells and the Challenges Facing Fuel Cell Technology
Today
SO FUEL CELL CHEMISTRY AND OPERATION
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT Symposium on Fuel Cell Chemistry and Operation held at the 236th
National Meeting of the America-Chemical-Society
CY AUG 17-21, 2008
CL Philadelphia, PA
SP Amer Chem Soc, Div Fuel Chem
AB The Department of Energy (DOE) Hydrogen Program supports research and development that has substantially improved the state-of-the-art in fuel cell technology, especially with regard to the major technical hurdles to fuel cell commercialization - durability, performance, and cost of fuel cell components and systems. In particular, membrane and catalyst structure and composition have been found to be critical in obtaining improved performance and durability. For example, advancements in alloy catalysts, novel catalyst supports, and mechanically-stabilized membranes have led to single-cell membrane electrode assemblies (MEAs) with platinum metal group loadings approaching the DOE 2015 MEA target that have a lifetime of 7,300 hours under voltage cycling, showing the potential to meet the DOE 2010 automotive fuel cell stack target of 5,000 hours (equivalent to 150,000 miles). In addition, improvements in the performance of alloy catalysts and membranes have helped improve overall performance and reduce the modeled cost of an 80-kW direct hydrogen fuel cell system for transportation projected to a volume of 500,000 units per year to $73/kW. While component research enabled such advances, innovation in characterization and analysis techniques has improved researchers' understanding of the processes that affect fuel cell performance and durability. An improved understanding of these processes will be key to making further progress in eliminating cost, durability, and performance challenges that remain for fuel cell technology.
C1 [Martin, Kathi Epping] US DOE, Washington, DC 20375 USA.
RP Martin, KE (reprint author), US DOE, 1000 Independence Ave SW, Washington, DC 20375 USA.
EM Kathi.Epping@ee.doe.gov
NR 27
TC 13
Z9 13
U1 1
U2 7
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2569-5
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2010
VL 1040
BP 1
EP 13
PG 13
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BVW22
UT WOS:000292954400001
ER
PT S
AU Mukherjee, PP
Kang, Q
Mukundan, R
Borup, RL
AF Mukherjee, P. P.
Kang, Q.
Mukundan, R.
Borup, R. L.
BE Williams, MC
Krist, K
Garland, N
TI Numerical Modeling of Two-Phase Behavior in the PEFC Gas Diffusion Layer
SO FUEL CELL SEMINAR 2009
SE ECS Transactions
LA English
DT Proceedings Paper
CT Fuel Cell Seminar and Exposition
CY NOV 16-20, 2009
CL Palm Springs, CA
ID ELECTROLYTE FUEL-CELLS; FLOWS
AB A critical performance limitation in the polymer electrolyte fuel cell (PEFC) is attributed to the mass transport loss originating from suboptimal liquid water transport and flooding phenomena. Liquid water can block the porous pathways in the fibrous gas diffusion layer (GDL) and the catalyst layer (CL), thus hindering oxygen transport from the flow field to the electrochemically actives sites in the catalyst layer. The cathode GDL is the component primarily responsible for facilitating gas and liquid transport, therefore plays a major role in determining the water management of a PEFC and hence the mass transport loss. The underlying pore morphology and wetting characteristics have significant influence on the flooding dynamics in the GDL. In this paper, the study of the two-phase behavior and the durability implications due to the wetting characteristics in the carbon paper GDL are presented using a pore-scale modeling framework.
C1 [Mukherjee, P. P.; Kang, Q.; Mukundan, R.; Borup, R. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Mukherjee, PP (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RI Kang, Qinjun/A-2585-2010;
OI Kang, Qinjun/0000-0002-4754-2240; Mukundan,
Rangachary/0000-0002-5679-3930
NR 21
TC 6
Z9 6
U1 0
U2 1
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-166-3
J9 ECS TRANSACTIONS
PY 2010
VL 26
IS 1
BP 97
EP 106
DI 10.1149/1.3428980
PG 10
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BDI60
UT WOS:000313482800009
ER
PT S
AU Marina, OA
Pederson, LR
Gemmen, R
Gerdes, K
Finklea, H
Celik, IB
AF Marina, O. A.
Pederson, L. R.
Gemmen, R.
Gerdes, K.
Finklea, H.
Celik, I. B.
BE Williams, MC
Krist, K
Garland, N
TI Overview of SOFC Anode Interactions with Coal Gas Impurities
SO FUEL CELL SEMINAR 2009
SE ECS Transactions
LA English
DT Proceedings Paper
CT Fuel Cell Seminar and Exposition
CY NOV 16-20, 2009
CL Palm Springs, CA
ID SYNGAS
AB An overview of the results of SOFC anode interactions with phosphorus, arsenic, selenium, sulfur, antimony, and hydrogen chloride as single contaminants or in combinations is discussed. Tests were performed using both anode-and electrolyte-supported cells in synthetic and actual coal gas for periods greater than 1000 hours. Post-test analyses were performed to identify reaction products formed and their distribution, and compared to phases expected from thermochemical modeling. The ultimate purpose of this work is to establish maximum permissible concentrations for impurities in coal gas, to aid in the selection of appropriate coal gas clean-up technologies.
C1 [Marina, O. A.; Pederson, L. R.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Gemmen, R.; Gerdes, K.] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Finklea, H.; Celik, I. B.] West Virginia Univ, Morgantown, WV 26506 USA.
RP Marina, OA (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
FU U.S. Department of Energy, Office of Fossil Energy, National Energy
Technology Laboratory through Solid-State Energy Conversion Alliance
(SECA) program; US DOE Office of Basic Energy Sciences
[DEFG02-06ER46299]; NETL (National Energy Technology Laboratory)
[DEFG02-06ER46299]; WV State EPSCoR Office [DEFG02-06ER46299]; West
Virginia University [DEFG02-06ER46299]
FX A. Martinez (NETL) is thanked for preparing Figures 1 and 2. The authors
would like to acknowledge technical assistance and fruitful discussion
with many researchers from PNNL, NETL, and WVU. Support for this work is
provided by the U.S. Department of Energy, Office of Fossil Energy,
National Energy Technology Laboratory through the Solid-State Energy
Conversion Alliance (SECA) program. Work at WVU is conducted under US
DOE (Department of Energy) EPSCoR Program and jointly sponsored by US
DOE Office of Basic Energy Sciences, NETL (National Energy Technology
Laboratory), WV State EPSCoR Office and the West Virginia University
under grant number DEFG02-06ER46299.
NR 7
TC 2
Z9 2
U1 0
U2 7
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-166-3
J9 ECS TRANSACTIONS
PY 2010
VL 26
IS 1
BP 363
EP 370
DI 10.1149/1.3429009
PG 8
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BDI60
UT WOS:000313482800038
ER
PT S
AU Brosha, EL
Sekhar, PK
Mukundan, R
Williamson, T
Garzon, FH
Woo, LY
Glass, RS
AF Brosha, Eric L.
Sekhar, Praveen K.
Mukundan, Rangachary
Williamson, Todd
Garzon, Fernando H.
Woo, Leta Y.
Glass, Robert S.
BE Williams, MC
Krist, K
Garland, N
TI Development of Sensors and Sensing Technology for Hydrogen Fuel Cell
Vehicle Applications
SO FUEL CELL SEMINAR 2009
SE ECS Transactions
LA English
DT Proceedings Paper
CT Fuel Cell Seminar and Exposition
CY NOV 16-20, 2009
CL Palm Springs, CA
AB In this work, we present recent progress in our work to develop new sensors and sensing technology for future hydrogen powered fuel cell vehicles. The first device is an electrochemical mixed potential sensor based on an indium-tin oxide/YSZ/Pt configuration prototype fabricated using commercial ceramic sensor manufacturing methods. This sensor has been designed to detect hydrogen in air and may serve in safety systems for vehicles or as a component of hydrogen infrastructure. The second device relies on a swept frequency acoustic method to non-invasively determine the state of charge of a hydride material contained within a sealed storage system.
C1 [Brosha, Eric L.; Sekhar, Praveen K.; Mukundan, Rangachary; Williamson, Todd; Garzon, Fernando H.] Los Alamos Natl Lab, Sensors & Electrochem Devices Grp, POB 1663,MS D429, Los Alamos, NM 87545 USA.
[Woo, Leta Y.; Glass, Robert S.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA.
RP Brosha, EL (reprint author), Los Alamos Natl Lab, Sensors & Electrochem Devices Grp, POB 1663,MS D429, Los Alamos, NM 87545 USA.
OI Mukundan, Rangachary/0000-0002-5679-3930
FU US DOE Office of Hydrogen, Fuel Cell and Infrastructure Technologies;
U.S. Department of Energy by Lawrence Livermore National Laboratory
[DEAC52-07NA27344]
FX We gratefully acknowledge funding from the US DOE Office of Hydrogen,
Fuel Cell and Infrastructure Technologies. We also acknowledge our LLNL
collaborators Dr. Robert Glass and Dr. Leta Woo. Portions of this work
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract DEAC52-07NA27344.
Support for hydrogen storage materials/ sensor research comes from the
Hydrogen Engineering Center of Excellence.
NR 9
TC 0
Z9 0
U1 1
U2 8
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-60768-166-3
J9 ECS TRANSACTIONS
PY 2010
VL 26
IS 1
BP 475
EP 483
DI 10.1149/1.3429020
PG 9
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BDI60
UT WOS:000313482800049
ER
PT J
AU French, R
Czernik, S
AF French, Richard
Czernik, Stefan
TI Catalytic pyrolysis of biomass for biofuels production
SO FUEL PROCESSING TECHNOLOGY
LA English
DT Article
DE Biomass; Pyrolysis; Catalytic cracking; Zeolites; Mass spectroscopy
ID REACTION PATHWAYS; OXYGENATE COMPONENTS; HZSM-5 ZEOLITE; BIO-OIL;
HYDROCARBONS; CONVERSION; GASOLINE; TRANSFORMATION; FUELS
AB Fast pyrolysis bio-oils currently produced in demonstration and semi-commercial plants have potential as a fuel for stationary power production using boilers or turbines but they require significant modification to become an acceptable transportation fuel. Catalytic upgrading of pyrolysis vapors using zeolites is a potentially promising method for removing oxygen from organic compounds and converting them to hydrocarbons. This work evaluated a set of commercial and laboratory-synthesized catalysts for their hydrocarbon production performance via the pyrolysis/catalytic cracking route. Three types of biomass feedstocks; cellulose, lignin, and wood were pyrolyzed (batch experiments) in quartz boats in physical contact with the catalysts at temperature ranging from 400 degrees C to 600 degrees C and catalyst-to-biomass ratios of 510 by weight. Molecular-beam mass spectrometry (MBMS) was used to analyze the product vapor and gas composition. The highest yield of hydrocarbons (approximately 16 wt.%, including 3.5 wt.% of toluene) was achieved using nickel, cobalt, iron, and gallium-substituted ZSM-5. Tests performed using a semi-continuous flow reactor allowed us to observe the change in the composition of the volatiles produced by the pyrolysis/catalytic vapor cracking reactions as a function of the catalyst time-on-stream. The deoxygenation activity decreased with time because of coke deposits formed on the catalyst. (C) 2009 Elsevier B.V. All rights reserved.
C1 [French, Richard; Czernik, Stefan] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA.
RP Czernik, S (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 1617 Cole Blvd, Golden, CO 80401 USA.
EM Stefan_Czernik@nrel.go
FU U.S. Department of Energy Office of Biomass Programs
FX Financial support for this work was provided by the U.S. Department of
Energy Office of Biomass Programs.
NR 26
TC 262
Z9 279
U1 26
U2 262
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-3820
J9 FUEL PROCESS TECHNOL
JI Fuel Process. Technol.
PD JAN
PY 2010
VL 91
IS 1
BP 25
EP 32
DI 10.1016/j.fuproc.2009.08.011
PG 8
WC Chemistry, Applied; Energy & Fuels; Engineering, Chemical
SC Chemistry; Energy & Fuels; Engineering
GA 538MX
UT WOS:000273189700004
ER
PT S
AU Wills, JM
Alouani, M
Andersson, P
Delin, A
Eriksson, O
Grechnyev, O
AF Wills, John M.
Alouani, Mebarek
Andersson, Per
Delin, Anna
Eriksson, Olle
Grechnyev, Oleksiy
TI Full-Potential Electronic Structure Method: Energy and Force
Calculations with Density Functional and Dynamical Mean Field Theory
SO FULL-POTENTIAL ELECTRONIC STRUCTURE METHOD: ENERGY AND FORCE
CALCULATIONS WITH DENSITY FUNCTIONAL AND DYNAMICAL MEAN FIELD THEORY
SE Springer Series in Solid-State Sciences
LA English
DT Article; Book
ID MAGNETIC-CIRCULAR-DICHROISM; X-RAY-ABSORPTION; AB-INITIO CALCULATION;
TIN-ORBITAL METHOD; GENERALIZED GRADIENT APPROXIMATION; TRANSITION-METAL
SYSTEMS; QUASI-PARTICLE ENERGIES; OPTICAL-PROPERTIES; MAGNETOOPTICAL
PROPERTIES; EXCHANGE-CORRELATION
C1 [Wills, John M.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Alouani, Mebarek] Univ Strasbourg, CNRS UMR 7504, IPCMS, F-67034 Strasbourg Cx 2, France.
[Andersson, Per] Swedish Def Res Agcy, FOI, Stockholm, Sweden.
[Eriksson, Olle] Uppsala Univ, Dept Phys & Astron, S-75120 Uppsala, Sweden.
[Delin, Anna] Royal Inst Technol KTH, Deptartment Mat Sci & Engn, S-10044 Stockholm, Sweden.
[Grechnyev, Oleksiy] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine.
RP Wills, JM (reprint author), Los Alamos Natl Lab, Div Theoret, POB 1663, Los Alamos, NM 87545 USA.
EM jxw@lanl.gov; mea@ipcms.u-strasbg.fr; per.andersson@foi.se;
annadel@kth.se; olle.eriksson@fysik.uu.se; shrike4625@yahoo.com
RI Delin, Anna/P-2100-2014
OI Delin, Anna/0000-0001-7788-6127
NR 267
TC 63
Z9 63
U1 1
U2 4
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0171-1873
BN 978-3-642-15143-9
J9 SPRINGER SER SOLID-S
PY 2010
VL 167
BP 3
EP +
DI 10.1007/978-3-642-15144-6
PG 180
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA BSW23
UT WOS:000285944800001
ER
PT J
AU Raffray, AR
Nygren, R
Whyte, DG
Abdel-Khalik, S
Doerner, R
Escourbiac, F
Evans, T
Goldston, RJ
Hoelzer, DT
Konishi, S
Lorenzetto, P
Merola, M
Neu, R
Norajitra, P
Pitts, RA
Rieth, M
Roedig, M
Rognlien, T
Suzuki, S
Tillack, MS
Wong, C
AF Raffray, A. R.
Nygren, R.
Whyte, D. G.
Abdel-Khalik, S.
Doerner, R.
Escourbiac, F.
Evans, T.
Goldston, R. J.
Hoelzer, D. T.
Konishi, S.
Lorenzetto, P.
Merola, M.
Neu, R.
Norajitra, P.
Pitts, R. A.
Rieth, M.
Roedig, M.
Rognlien, T.
Suzuki, S.
Tillack, M. S.
Wong, C.
TI High heat flux components-Readiness to proceed from near term fusion
systems to power plants
SO FUSION ENGINEERING AND DESIGN
LA English
DT Article
DE Plasma-facing components; Divertor; ITER; DEMO; Fusion power plants
ID PLASMA-FACING COMPONENTS; ALCATOR C-MOD; FERRITIC ALLOYS;
MECHANICAL-PROPERTIES; DIVERTOR CONCEPT; PERFORMANCE; DESIGN; HELIUM;
MICROSTRUCTURE; FABRICATION
AB A present topic of high interest in magnetic fusion is the "gap" between near-term and long-term concepts for high heat flux components (HHFC), and in particular for divertors. This paper focuses on this issue with the aim of characterizing the international status of current HHFC design concepts for ITER and describing the different technologies needed in the designs being developed for fusion power plants. Critical material and physics aspects are highlighted while evaluating the Current readiness level of long-term concepts, identifying the design and R&D gaps, and discussing ways to bridge them. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Raffray, A. R.; Doerner, R.; Tillack, M. S.] Univ Calif San Diego, CER, EBU II, La Jolla, CA 92093 USA.
[Nygren, R.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Whyte, D. G.] MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA.
[Abdel-Khalik, S.] Georgia Inst Technol, Atlanta, GA 30332 USA.
[Escourbiac, F.] IRFM, CEA, F-13108 St Paul Les Durance, France.
[Evans, T.; Wong, C.] Gen Atom Co, San Diego, CA 92186 USA.
[Goldston, R. J.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
[Hoelzer, D. T.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Konishi, S.] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan.
[Lorenzetto, P.] Fus Energy, Barcelona 08019, Spain.
[Merola, M.; Pitts, R. A.] ITER Org, Cadarache Ctr, F-13108 St Paul Les Durance, France.
[Neu, R.] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany.
[Norajitra, P.] Forschungszentrum Karlsruhe, Inst Mat Res 3, D-76021 Karlsruhe, Germany.
[Rieth, M.] Forschungszentrum Karlsruhe, Inst Mat Res 1, D-76021 Karlsruhe, Germany.
[Roedig, M.] Forschungszentrum Julich, D-52425 Julich, Germany.
[Rognlien, T.] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Suzuki, S.] Japan Atom Energy Agcy, Fus Res & Dev Directorate, Naka, Ibaraki 3110193, Japan.
RP Raffray, AR (reprint author), Univ Calif San Diego, CER, EBU II, Room 460,9500 Gilman Dr, La Jolla, CA 92093 USA.
EM arraffray@ucsd.edu
RI Rieth, Michael/E-4245-2017; Hoelzer, David/L-1558-2016; Neu, Rudolf
/B-4438-2010
OI Rieth, Michael/0000-0002-6231-6241; Neu, Rudolf /0000-0002-6062-1955
NR 56
TC 52
Z9 55
U1 1
U2 15
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0920-3796
J9 FUSION ENG DES
JI Fusion Eng. Des.
PD JAN
PY 2010
VL 85
IS 1
BP 93
EP 108
DI 10.1016/j.fusengdes.2009.08.002
PG 16
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 552JC
UT WOS:000274284900014
ER
PT J
AU Petty, CC
Austin, ME
Lohr, J
Luce, TC
Makowski, MA
Prater, R
Harvey, RW
Smirnov, AP
AF Petty, C. C.
Austin, M. E.
Lohr, J.
Luce, T. C.
Makowski, M. A.
Prater, R.
Harvey, R. W.
Smirnov, A. P.
TI EFFECT OF PARTICLE TRANSPORT ON THE MEASURED ELECTRON CYCLOTRON CURRENT
DRIVE PROFILE AT HIGH RELATIVE POWER DENSITY
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article
DE electron cyclotron; current drive; particle transport
ID DIII-D; DISCHARGES; TOKAMAK; JT-60U; WAVES
AB Recent experiments on the DIII-D tokamak have examined the effect of particle transport on the electron cyclotron current drive (ECCD) profile using measurements of the magnetic field pitch angles by motional Stark effect polarimetry. While previous ECCD studies on DIII-D did not observe any clear effects of transport, these new experiments at high ECCD power, low density, and radiation temperatures above 20 keV clearly demonstrate that the ECCD profile can be reduced and broadened compared to the Fokker-Planck code CQL3D predictions assuming no radial transport. A diffusion coefficient of approximate to 0.4 m(2)/s is required in CQL3D to reproduce the experimental ECCD profile at high relative power densities, while smaller diffusion coefficients are needed at low relative power densities. This level of transport is comparable to the effective particle transport rate needed to maintain the density profile but an order of magnitude less than the electron thermal diffusivity. While radial transport of the current-carrying electrons is potentially detrimental for applications that rely on strong localization of the noninductive current, this effect should be negligible on ITER owing to its large size and low relative power density.
C1 [Petty, C. C.; Lohr, J.; Luce, T. C.; Prater, R.] Gen Atom Co, San Diego, CA 92186 USA.
[Austin, M. E.] Univ Texas Austin, Austin, TX 78712 USA.
[Makowski, M. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Harvey, R. W.; Smirnov, A. P.] CompX, Del Mar, CA 92014 USA.
RP Petty, CC (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA.
EM petty@fusion.gat.com
RI Smirnov, Alexander /A-4886-2014
NR 22
TC 2
Z9 2
U1 0
U2 2
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD JAN
PY 2010
VL 57
IS 1
BP 10
EP 18
PG 9
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 536JS
UT WOS:000273041300002
ER
PT J
AU Caughman, JBO
Fernandez, A
Cappa, A
Castejon, F
Garcia-Regana, JM
Rasmussen, DA
Wilgen, JB
AF Caughman, J. B. O.
Fernandez, A.
Cappa, A.
Castejon, F.
Garcia-Regana, J. M.
Rasmussen, D. A.
Wilgen, J. B.
TI INITIAL ELECTRON BERNSTEIN WAVE EMISSION MEASUREMENTS ON THE TJ-II
STELLARATOR
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article
DE electron Bernstein wave; microwave emission; TJ-II stellarator
ID CYCLOTRON EMISSION; MODE; PROJECT; PLASMA
AB Thermal electron emission at 28 GHz has been measured on the TJ-II stellarator. The emission from neutral beam-heated overdense plasmas, where the plasma density is greater than the ordinary-mode (O-mode) cutoff density, is consistent with electron thermal emission from mode-converted electron Bernstein waves (EBWs) via the Bernstein wave to extraordinary mode to ordinary mode scenario (B-X-O). Emission from underdense plasmas without neutral beam injection is consistent with the measurement of oblique electron cyclotron emission. Electron Bernstein wave emission measurements are being made to determine the optimum launch angle for planned EBW heating experiments and also to provide an indication of electron temperature evolution in overdense plasmas on TJ-II.
C1 [Caughman, J. B. O.; Rasmussen, D. A.; Wilgen, J. B.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Fernandez, A.; Cappa, A.; Castejon, F.; Garcia-Regana, J. M.] EURATOM CIEMAT, Lab Nacl Fus, Madrid, Spain.
RP Caughman, JBO (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM caughmanjb@ornl.gov
RI Castejon, Francisco/L-7341-2014; Caughman, John/R-4889-2016; Cappa,
Alvaro/C-5614-2017
OI Castejon, Francisco/0000-0002-4654-0542; Caughman,
John/0000-0002-0609-1164; Cappa, Alvaro/0000-0002-2250-9209
FU U.S. Department of Energy [DE-AC05-00OR22725]; Subdireccion General de
Proyectos de Investigacion, Ministerio de Educacion y Ciencia
[ENE2004-06957]
FX The authors would like to acknowledge helpful discussions with E. de la
Luna of CIEMAT, currently working on JET, and G. Taylor of the Princeton
Plasma Physics Laboratory. Oak Ridge National Laboratory is managed by
UT-Battelle, LLC, for the U.S. Department of Energy under contract
DE-AC05-00OR22725. A part of this work is performed under support of
Spanish "Subdireccion General de Proyectos de Investigacion, Ministerio
de Educacion y Ciencia" with reference ENE2004-06957.
NR 17
TC 3
Z9 3
U1 0
U2 1
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD JAN
PY 2010
VL 57
IS 1
BP 41
EP 47
PG 7
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 536JS
UT WOS:000273041300005
ER
PT J
AU Leuer, JA
Xiao, BJ
Humphreys, DA
Walker, ML
Hyatt, AW
Jackson, GL
Mueller, D
Penaflor, BG
Piglowski, DA
Johnson, RD
Welander, AS
Yuan, QP
Wang, HZ
Luo, JR
AF Leuer, J. A.
Xiao, B. J.
Humphreys, D. A.
Walker, M. L.
Hyatt, A. W.
Jackson, G. L.
Mueller, D.
Penaflor, B. G.
Piglowski, D. A.
Johnson, R. D.
Welander, A. S.
Yuan, Q. P.
Wang, H. Z.
Luo, J. R.
CA East Team
TI TOKAMAK START-UP MODELING AND DESIGN FOR EAST FIRST PLASMA CAMPAIGN
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article
DE EAST start-up; plasma initiation; first plasma
ID ISX-B TOKAMAK; DIII-D; VACUUM VESSEL; DOUBLET-III; CYCLOTRON;
PREIONIZATION; DISCHARGE; BREAKDOWN; WAVES
AB The Experimental Advanced Superconducting Tokamak (EAST) was the first shaped tokamak of megaampere scale to achieve plasma utilizing a fully superconducting poloidal field coil system, and it is addressing ITER relevant superconducting constraints associated with the breakdown, plasma formation, and initial plasma current ramp. Electric field production for plasma start-up is severely limited in fully superconducting machines as a consequence of constraints associated with coil and lead voltages and eddy current heating in the superconducting coils. Such constraints motivate the use of electromagnetic modeling codes to design start-up scenarios for these devices. The successful first plasma campaign of the EAST superconducting tokamak was greatly facilitated by extensive and careful planning, development of appropriate modeling, simulation and diagnostic tools, a highly flexible plasma control system, and a highly experienced international collaboration team. We describe the design and modeling tools used to develop the first plasma scenario along with results of their application in the start-up campaign. Control design tools and plasma control algorithms utilized during the first campaign are discussed. Key physics, engineering, and operations results of the first plasma campaign are presented, including observations relevant to future devices such as ITER.
C1 [Leuer, J. A.; Humphreys, D. A.; Walker, M. L.; Hyatt, A. W.; Jackson, G. L.; Penaflor, B. G.; Piglowski, D. A.; Johnson, R. D.; Welander, A. S.] Gen Atom Co, San Diego, CA 92186 USA.
[Xiao, B. J.; Yuan, Q. P.; Wang, H. Z.; Luo, J. R.] Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China.
[Mueller, D.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
RP Leuer, JA (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA.
EM leuer@fusion.gat.com
RI Xiao, Bingjia/A-1681-2017;
OI Xiao, Bingjia/0000-0001-8692-2636; Walker, Michael/0000-0002-4341-994X
FU U.S. Department of Energy [DE-FC02-04ER54698, DE-AC0276CH03073]
FX This work was supported in part by the U.S. Department of Energy under
DE-FC02-04ER54698 and DE-AC0276CH03073.
NR 40
TC 10
Z9 10
U1 0
U2 7
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD JAN
PY 2010
VL 57
IS 1
BP 48
EP 65
PG 18
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 536JS
UT WOS:000273041300006
ER
PT J
AU Preissl, R
Schulz, M
Kranzlmuller, D
de Supinski, BR
Quinlan, DJ
AF Preissl, Robert
Schulz, Martin
Kranzlmueller, Dieter
de Supinski, Bronis R.
Quinlan, Daniel J.
TI Transforming MPI source code based on communication patterns
SO FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF GRID
COMPUTING-THEORY METHODS AND APPLICATIONS
LA English
DT Article
DE MPI communication pattern; ROSE compiler framework; Source code
transformation; Abstract syntax tree; Suffix tree
AB A high-level understanding of communication behavior can facilitate performance optimization of HPC applications. In particular, MPI communication patterns can serve as the basis of code transformations that substitute more efficient operations for those originally used by the application developer. We present a novel algorithm for identifying MPI communication patterns and a mechanism to perform source code transformations based on the observed patterns. Our transformation mechanism, implemented within the ROSE compiler framework, modifies the abstract syntax tree based on static analysis that confirms the generalizability of the patterns that we detect. Our results demonstrate the efficiency of our approach.
Our pattern detection algorithm. which we evaluate with realistic applications using traces from up to 128 processors as well as with simple benchmarks, has low overhead as input or job size grows. Our transformation mechanism quickly optimizes MPI source code by replacing MPI code fragments for collective operations through highly optimized native MPI functions and by increasing the overlapping of communication and computation. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Preissl, Robert] Johannes Kepler Univ Linz, GUP, Dept Graph & Parallel Proc, Linz, Austria.
[Schulz, Martin; de Supinski, Bronis R.; Quinlan, Daniel J.] Lawrence Livermore Natl Lab, CASC, Comp Sci Grp, Livermore, CA USA.
[de Supinski, Bronis R.] Lawrence Livermore Natl Lab, ADEPT, Adv Simulat & Comp Program, Livermore, CA USA.
[Kranzlmueller, Dieter] Univ Munich, Dept Comp Sci, Munich, Germany.
[Kranzlmueller, Dieter] Bavarian Acad Sci, Leibniz Supercomp Ctr LRZ, Garching, Germany.
RP Preissl, R (reprint author), Johannes Kepler Univ Linz, GUP, Dept Graph & Parallel Proc, Linz, Austria.
EM rpreissl@gup.jku.at
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]
FX We would like to thank Christof Klausecker and Thomas Kockerbauer from
GUP Linz who are part of the g-Eclipse project for implementing the
trace viewer, enabling us to visualize large MPI traces, and for their
helpful comments improving the pattern detection algorithm. Also special
thanks to the Austrian Grid Initiative for funding this project. Part of
this work was performed under the auspices of the US Department of
Energy by Lawrence Livermore National Laboratory under contract
DE-AC52-07NA27344. (LLNL-JRNL-408081).
NR 16
TC 7
Z9 7
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-739X
J9 FUTURE GENER COMP SY
JI Futur. Gener. Comp. Syst.
PD JAN
PY 2010
VL 26
IS 1
BP 147
EP 154
DI 10.1016/j.future.2009.05.017
PG 8
WC Computer Science, Theory & Methods
SC Computer Science
GA 513XK
UT WOS:000271357200017
ER
PT J
AU Lotspeich, R
AF Lotspeich, Richard
BE Bellacqua, J
TI Economic Integration of China and Russia in the Post-Soviet Era
SO FUTURE OF CHINA-RUSSIA RELATIONS
SE Asia in the New Millennium
LA English
DT Article; Book Chapter
ID MIGRATION
C1 [Lotspeich, Richard] Indiana State Univ, Terre Haute, IN 47809 USA.
[Lotspeich, Richard] Los Alamos Natl Lab, Syst Anal Grp, Los Alamos, NM 87545 USA.
RP Lotspeich, R (reprint author), Indiana State Univ, Terre Haute, IN 47809 USA.
NR 61
TC 2
Z9 2
U1 0
U2 2
PU UNIV PRESS KENTUCKY
PI LEXINGTON
PA 102 LAFFERTY HALL, UNIVERSITY OF KENTUCKY, LEXINGTON, KY 40506 USA
BN 978-0-8131-2939-6
J9 ASIA NEW MILLENN
PY 2010
BP 83
EP 145
PG 63
WC International Relations
SC International Relations
GA BAJ86
UT WOS:000304375000005
ER
PT J
AU Patton, RM
Beckerman, BG
Potok, TE
Treadwell, JN
AF Patton, Robert M.
Beckerman, Barbara G.
Potok, Thomas E.
Treadwell, Jim N.
BE Branke, J
TI Genetic Algorithm for Analysis of Abdominal Aortic Aneurysms in
Radiology Reports
SO GECCO-2010 COMPANION PUBLICATION: PROCEEDINGS OF THE 12TH ANNUAL GENETIC
AND EVOLUTIONARY COMPUTATION CONFERENCE
LA English
DT Proceedings Paper
CT 12th Annual Genetic and Evolutionary Computation Conference (GECCO)
CY JUL 07-11, 2010
CL Portland, OR
SP Assoc Comp Machinery, Special Interest Grp Genet & Evolutionary Computat (ACM SIGEVO)
DE Genetic algorithm; abdominal aortic aneurysm; medical knowledge
discovery; natural language processing
AB An abdominal aortic aneurysm is a problem in which the wall of the artery that supplies blood to the abdomen and lower extremities expands under pressure or balloons outward. Patients must undergo surgery to repair such an aneurysm, and there is currently no known indicator of long-term success or failure from this surgery. Our work uses a genetic algorithm to analyze radiology reports from these patients to look for common patterns in the language used as well as common features of both successful and unsuccessful surgeries. The results of the genetic algorithm show that patients with complications or unusual characteristics can be identified from a set of radiology reports without the use of search keywords, clustering, categorization, or ontology. This allows medical researchers to search and identify interesting patient records without the need for explicitly defining what "interesting" patient records are.
C1 [Patton, Robert M.; Beckerman, Barbara G.; Potok, Thomas E.; Treadwell, Jim N.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Patton, RM (reprint author), Oak Ridge Natl Lab, POB 2008,MS 6085, Oak Ridge, TN 37831 USA.
EM pattonrm@ornl.gov; beckermanbg@ornl.gov; potokte@ornl.gov;
treadwelljn@ornl.gov
OI Potok, Thomas/0000-0001-6687-3435; Patton, Robert/0000-0002-8101-0571
NR 11
TC 0
Z9 0
U1 0
U2 0
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA
BN 978-1-4503-0073-5
PY 2010
BP 1931
EP 1936
PG 6
WC Computer Science, Artificial Intelligence; Computer Science, Theory &
Methods; Mathematics, Applied
SC Computer Science; Mathematics
GA BGA53
UT WOS:000322071400061
ER
PT S
AU Bailey, DH
Borwein, JM
AF Bailey, David H.
Borwein, Jonathan M.
BE Amdeberhan, T
Medina, LA
Moll, VH
TI Experimental computation with oscillatory integrals
SO GEMS IN EXPERIMENTAL MATHEMATICS
SE Contemporary Mathematics
LA English
DT Proceedings Paper
CT AMS Special Session on Experimental Mathematics
CY JAN 05, 2009
CL Washington, DC
ID SINC
AB A previous study by one of the present authors, together with D. Borwein and I. E. Leonard [8], studied the asymptotic behavior of the p-norm of the sinc function: sinc(x) = (sin x)/x and along the way looked at closed forms for integer values of p. In this study we address these integrals with the tools of experimental mathematics, namely by computing their numerical values to high precision, both as a challenge in itself, and also in an attempt to recognize the numerical values as closed-form constants. With this approach, we are able to reproduce several of the results of [8] and to find new results, both numeric and analytic, that go beyond the previous study.
C1 [Bailey, David H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Bailey, DH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM dhbailey@lbl.gov; jonathan.borwein@newcastle.edu.au
NR 27
TC 1
Z9 1
U1 0
U2 7
PU AMER MATHEMATICAL SOC
PI PROVIDENCE
PA P.O. BOX 6248, PROVIDENCE, RI 02940 USA
SN 0271-4132
BN 978-0-8218-4869-2
J9 CONTEMP MATH
PY 2010
VL 517
BP 25
EP 40
PG 16
WC Mathematics
SC Mathematics
GA BQI98
UT WOS:000281138500003
ER
PT S
AU Bailey, DH
Borwein, JM
Broadhurst, D
Zudilin, W
AF Bailey, David H.
Borwein, Jonathan M.
Broadhurst, David
Zudilin, Wadim
BE Amdeberhan, T
Medina, LA
Moll, VH
TI Experimental Mathematics and Mathematical Physics
SO GEMS IN EXPERIMENTAL MATHEMATICS
SE Contemporary Mathematics
LA English
DT Proceedings Paper
CT AMS Special Session on Experimental Mathematics
CY JAN 05, 2009
CL Washington, DC
ID ISING-CLASS; INTEGRALS; COEFFICIENTS; VALUES; BESSEL
AB One of the most effective techniques of experimental mathematics is to compute mathematical entities such as integrals, series or limits to high precision, then attempt to recognize the resulting numerical values. Recently these techniques have been applied with great success to problems in mathematical physics. Notable among these applications are the identification of some key multi-dimensional integrals that arise in Ising theory, quantum field theory and in magnetic spin theory.
C1 [Bailey, David H.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Bailey, DH (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM dhbailey@lbl.gov; jonathan.borwein@newcastle.edu.au;
D.Broadhurst@open.ac.uk; wadim.zudilin@newcastle.edu.au
NR 35
TC 6
Z9 6
U1 0
U2 9
PU AMER MATHEMATICAL SOC
PI PROVIDENCE
PA P.O. BOX 6248, PROVIDENCE, RI 02940 USA
SN 0271-4132
BN 978-0-8218-4869-2
J9 CONTEMP MATH
PY 2010
VL 517
BP 41
EP 58
PG 18
WC Mathematics
SC Mathematics
GA BQI98
UT WOS:000281138500004
ER
PT J
AU Torricelli, G
Carapelli, A
Convey, P
Nardi, F
Boore, JL
Frati, F
AF Torricelli, Giulia
Carapelli, Antonio
Convey, Peter
Nardi, Francesco
Boore, Jeffrey L.
Frati, Francesco
TI High divergence across the whole mitochondrial genome in the
"pan-Antarctic" springtail Friesea grisea: Evidence for cryptic species?
SO GENE
LA English
DT Article
DE Collembola; Antarctica; mtDNA; Cryptic species
ID CHAIN-REACTION PRIMERS; A+T-RICH REGION; PHYLOGENETIC ANALYSIS;
SECONDARY STRUCTURE; SUBSTITUTION RATES; COMPLETE SEQUENCE; GLACIAL
REFUGIA; HEXAPOD ORIGINS; APIS-MELLIFERA; VICTORIA LAND
AB Collembola are one of the few hexapod groups adapted to live in the harsh environmental conditions of Antarctic terrestrial ecosystems. Diversity is limited to a few species that can be very abundant in coastal deglaciated sites. A remarkable lack of overlap in Collembola species composition is evident between Western and Eastern Antarctica, and Friesea grisea is currently the only species whose distribution is thought to span these two main regions of the continent. However, our analysis of the complete sequences of the mitochondrial genomes from specimens obtained from each of the two regions showed unexpected genetic divergence, well above the average levels observed between populations belonging to the same species, and so indicating that these are actually separate species, despite their lack of distinguishing morphology. Detailed analysis of the two genomes showed the presence of a non-coding region observed between trnS (uga) and nad1. Other features of these mitochondrial genomes, such as base compositional bias, secondary structure features of tRNAs and the presence of regulatory elements in the control region, are described and discussed from an evolutionary standpoint. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Torricelli, Giulia; Carapelli, Antonio; Nardi, Francesco; Frati, Francesco] Univ Siena, Dept Evolutionary Biol, I-53100 Siena, Italy.
[Convey, Peter] British Antarctic Survey, NERC, Cambridge CB3 0ET, England.
[Boore, Jeffrey L.] Genome Project Solut Inc, Hercules, CA 94547 USA.
[Boore, Jeffrey L.] DOE Joint Genome Inst, Walnut Creek, CA 94598 USA.
[Boore, Jeffrey L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Walnut Creek, CA 94598 USA.
RP Carapelli, A (reprint author), Univ Siena, Dept Evolutionary Biol, Via A Moro 2, I-53100 Siena, Italy.
EM torricelli5@unisi.it; carapelli@unisi.it; pcon@bas.ac.uk;
nardifra@unisi.it; JLBoore@GenomeProjectSolutions.com; frati@unisi.it
RI Nardi, Francesco/E-5516-2011;
OI CARAPELLI, Antonio/0000-0002-3165-9620
FU Italian Program of Research in Antarctica; Italian MIUR (PRIN);
University of Siena
FX This work was supported by grants from the Italian Program of Research
in Antarctica (PNRA), the Italian MIUR (PRIN), and the University of
Siena (PAR) to A.C. and F.F. This paper contributes to the BAS BIOFLAME
and SCAR EBA research programs.
NR 62
TC 30
Z9 34
U1 0
U2 14
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-1119
J9 GENE
JI Gene
PD JAN 1
PY 2010
VL 449
IS 1-2
BP 30
EP 40
DI 10.1016/j.gene.2009.09.006
PG 11
WC Genetics & Heredity
SC Genetics & Heredity
GA 523JA
UT WOS:000272067900004
PM 19782734
ER
PT S
AU Thorne, KS
Zurek, WH
AF Thorne, Kip S.
Zurek, Wojciech H.
BE Ciufolini, I
Matzner, RA
TI John Archibald Wheeler: A Few Highlights of His Contributions to Physics
SO GENERAL RELATIVITY AND JOHN ARCHIBALD WHEELER
SE Astrophysics and Space Science Library
LA English
DT Article; Book Chapter
ID UNIVERSE
AB The following quotations describe in "nutshells" a few highlights of John Archibald Wheeler's contributions to physics. The contributions are arranged in roughly the following order: (i) concrete research results, (ii) innovative ideas that have become foundations for the research of others, (iii) insights that give guidance for the development of physics over the coming decades. Since most of Wheeler's work contains strong elements of two or even all three of these characteristics, the editors have not attempted to delineate the dividing lines between the three categories.
C1 [Thorne, Kip S.] CALTECH, Div Phys & Astron, Pasadena, CA 91125 USA.
[Zurek, Wojciech H.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Thorne, KS (reprint author), CALTECH, Div Phys & Astron, Pasadena, CA 91125 USA.
EM kip@caltech.edu; whz@lanl.gov
NR 29
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI DORDRECHT
PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
SN 0067-0057
BN 978-90-481-3734-3
J9 ASTROPHYS SPACE SC L
PY 2010
VL 367
BP 29
EP 38
DI 10.1007/978-90-481-3735-0_3
D2 10.1007/978-90-481-3735-0
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BPW42
UT WOS:000280150900003
ER
PT B
AU Wiser, R
Hand, M
AF Wiser, Ryan
Hand, Maureen
BE Sioshansi, FP
TI Wind Power: How Much, How Soon, and at What Cost?
SO GENERATING ELECTRICITY IN A CARBON-CONSTRAINED WORLD
LA English
DT Article; Book Chapter
ID AIR ENERGY-STORAGE; RENEWABLE ENERGY; ELECTRICITY; PENETRATION;
INTEGRATION; GENERATION; ECONOMICS; SYSTEMS; CARBON; IMPACT
AB The global wind power market has been growing at a phenomenal pace, driven by favorable policies toward renewable energy and the improving economics of wind projects. Going forward, utility-scale wind power offers the potential for significant reductions in the carbon footprint of the electricity sector. Specifically, the global wind resource is vast and, though accessing this potential is not costless or lacking in barriers, wind power can be developed at scale in the near to medium term at what promises to be an acceptable cost.
C1 [Wiser, Ryan] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
[Hand, Maureen] Natl Wind Technol Ctr, Natl Renewable Energy Lab, Louisville, CO 80027 USA.
RP Wiser, R (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA USA.
NR 63
TC 1
Z9 1
U1 1
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-08-088971-9; 978-1-85617-655-2
PY 2010
BP 241
EP 269
DI 10.1016/B978-1-85617-655-2.00009-2
PG 29
WC Energy & Fuels
SC Energy & Fuels
GA BEN01
UT WOS:000317423600012
ER
PT J
AU Denholm, P
Drury, E
Margolis, R
Mehos, M
AF Denholm, Paul
Drury, Easan
Margolis, Robert
Mehos, Mark
BE Sioshansi, FP
TI Solar Energy: The Largest Energy Resource
SO GENERATING ELECTRICITY IN A CARBON-CONSTRAINED WORLD
LA English
DT Article; Book Chapter
ID ELECTRIC-POWER SYSTEMS; PHOTOVOLTAICS PV; TECHNOLOGIES; GENERATION;
LIMITS
AB The fraction of electricity generated by solar technologies is small but growing rapidly, with enormous potential to generate a large fraction of the world's electricity needs while significantly reducing global carbon emissions. Realizing this potential, however, will require overcoming both technical and economic barriers. In the short term, it will be important to decrease costs, improve solar conversion efficiency, and implement electricity rate structures that capture the time-varying value of solar-generated electricity. In the long term, challenges will include using material resources more efficiently, integrating intermittent PV electricity into the grid, and building transmission capacity for utility-scale solar generation systems linking areas with good solar resources to population centers.
C1 [Denholm, Paul; Margolis, Robert; Mehos, Mark] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Drury, Easan] Natl Renewable Energy Lab, Energy Forecasting & Modeling Grp, Golden, CO 80401 USA.
[Mehos, Mark] Natl Renewable Energy Lab, High Temp Solar Thermal Team, Golden, CO 80401 USA.
[Mehos, Mark] Natl Renewable Energy Lab, Concentrating Solar Power Program, Golden, CO 80401 USA.
RP Denholm, P (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
NR 31
TC 7
Z9 7
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
BN 978-0-08-088971-9
PY 2010
BP 271
EP 302
DI 10.1016/B978-1-85617-655-2.00010-9
PG 32
WC Energy & Fuels
SC Energy & Fuels
GA BEN01
UT WOS:000317423600013
ER
PT B
AU Ellis, B
Jansson, S
Strauss, SH
Tuskan, GA
AF Ellis, Brian
Jansson, Stefan
Strauss, Steven H.
Tuskan, Gerald A.
BE Jansson, S
Bhalerao, RP
Groover, AT
TI Why and How Populus Became a "Model Tree"
SO GENETICS AND GENOMICS OF POPULUS
SE Plant Genetics and Genomics Crops and Models
LA English
DT Editorial Material; Book Chapter
AB Although Populus was not a favored experimental system for very many plant biologists in 2000, P trichocarpa ultimately became only the third plant species to have its genome fully sequenced. Here we examine the many different factors that came into play when this species was abruptly elevated to the status of a new "model organism".
C1 [Ellis, Brian] Univ British Columbia, Michael Smith Labs, Vancouver, BC V6T 1Z4, Canada.
[Tuskan, Gerald A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Jansson, Stefan; Strauss, Steven H.] Oregon State Univ, Dept Forest Ecosyst & Soc, Corvallis, OR 97331 USA.
RP Ellis, B (reprint author), Univ British Columbia, Michael Smith Labs, Vancouver, BC V6T 1Z4, Canada.
EM bee@interchange.ubc.ca; stefan.jansson@plantphys.umu.se;
steve.strauss@oregonstate.edu; tuskanga@ornl.gov;
stefan.jansson@plantphys.umu.se
NR 4
TC 15
Z9 15
U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-1540-5
J9 PLANT GENET GENOMICS
JI Plant Genet. Genom. Crops. Mod.
PY 2010
VL 8
BP 3
EP 14
DI 10.1007/978-1-4419-1541-2_1
D2 10.1007/978-1-4419-1541-2
PG 12
WC Plant Sciences; Forestry
SC Plant Sciences; Forestry
GA BOC23
UT WOS:000276162100001
ER
PT S
AU De Sapio, V
De Sapio, R
AF De Sapio, Vincent
De Sapio, Robin
BE Paipetis, SA
Ceccarelli, M
TI MECHANICAL ADVANTAGE: THE ARCHIMEDEAN TRADITION OF ACQUIRING GEOMETRIC
INSIGHT FROM MECHANICAL METAPHOR
SO GENIUS OF ARCHIMEDES - 23 CENTURIES OF INFLUENCE ON MATHEMATICS, SCIENCE
AND ENGINEERING
SE History of Mechanism and Machine Science
LA English
DT Proceedings Paper
CT International Conference on Genius of Archimedes (23 Centuries of
Influence on the Fields of Mathematics, Science, and Engineering)
CY JUN 08-10, 2010
CL Syracuse, ITALY
SP Western Greece Region, Univ Patras, GEFYRA SA, Inst Culture & Qual Life, eRDA Innovat Ctr, City Syracuse, Univ Cassino, Catania Univ, Sch Architecture, Soprintendenza Beni Culturali & Archeologici Siracusa, Int Fed Promot Mech & Machine Sci, European Soc Hist Sci
AB Archimedes' genius was derived in no small part from his ability to effortlessly interpret problems in both geometric and mechanical ways. We explore, in a modern context, the application of mechanical reasoning to geometric problem solving. The general form of this inherently Archimedean approach is described and it's specific use is demonstrated with regard to the problem of finding the geodesics of a surface. Archimedes' approach to thinking about problems may be his greatest contribution, and in that spirit we present some work related to teaching Archimedes' ideas at an elementary level. The aim is to cultivate the same sort of creative problem solving employed by Archimedes, in young students with nascent mechanical reasoning skills.
C1 [De Sapio, Vincent] Sandia Natl Labs, 7011 East Ave, Livermore, CA 94551 USA.
[De Sapio, Robin] Orinda Union Sch Dist, Orinda 94563, CA USA.
RP De Sapio, V (reprint author), Sandia Natl Labs, 7011 East Ave, Livermore, CA 94551 USA.
EM vdesap@sandia.gov; rdesapio@orinda.k12.ca.us
NR 12
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI DORDRECHT
PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
SN 1875-3442
BN 978-90-481-9090-4
J9 HIST MECH MACH SCI
PY 2010
VL 11
BP 493
EP +
DI 10.1007/978-90-481-9091-1_37
PG 3
WC History & Philosophy Of Science
SC History & Philosophy of Science
GA BSM35
UT WOS:000284914500037
ER
PT J
AU Faghihi, MA
Zhang, M
Huang, J
Modarresi, F
Van der Brug, MP
Nalls, MA
Cookson, MR
St-Laurent, G
Wahlestedt, C
AF Faghihi, Mohammad Ali
Zhang, Ming
Huang, Jia
Modarresi, Farzaneh
Van der Brug, Marcel P.
Nalls, Michael A.
Cookson, Mark R.
St-Laurent, Georges, III
Wahlestedt, Claes
TI Evidence for natural antisense transcript-mediated inhibition of
microRNA function
SO GENOME BIOLOGY
LA English
DT Editorial Material
ID BETA-SECRETASE ACTIVITY; ALZHEIMERS-DISEASE; OXIDATIVE STRESS;
GENE-EXPRESSION; NONCODING RNA; MAMMALIAN TRANSCRIPTOME; NERVOUS-SYSTEM;
DRUG TARGET; BACE1; HIF-1-ALPHA
AB Background: MicroRNAs (miRNAs) have the potential to regulate diverse sets of mRNA targets. In addition, mammalian genomes contain numerous natural antisense transcripts, most of which appear to be non-protein-coding RNAs (ncRNAs). We have recently identified and characterized a highly conserved non-coding antisense transcript for beta-secretase-1 (BACE1), a critical enzyme in Alzheimer's disease pathophysiology. The BACE1-antisense transcript is markedly up-regulated in brain samples from Alzheimer's disease patients and promotes the stability of the (sense) BACE1 transcript.
Results: We report here that BACE1-antisense prevents miRNA-induced repression of BACE1 mRNA by masking the binding site for miR-485-5p. Indeed, miR-485-5p and BACE1-antisense compete for binding within the same region in the open reading frame of the BACE1 mRNA. We observed opposing effects of BACE1-antisense and miR-485-5p on BACE1 protein in vitro and showed that Locked Nucleic Acid-antimiR mediated knockdown of miR-485-5p as well as BACE1-antisense over-expression can prevent the miRNA-induced BACE1 suppression. We found that the expression of BACE1-antisense as well as miR-485-5p are dysregulated in RNA samples from Alzheimer's disease subjects compared to control individuals.
Conclusions: Our data demonstrate an interface between two distinct groups of regulatory RNAs in the computation of BACE1 gene expression. Moreover, bioinformatics analyses revealed a theoretical basis for many other potential interactions between natural antisense transcripts and miRNAs at the binding sites of the latter.
C1 [Faghihi, Mohammad Ali; Modarresi, Farzaneh; Van der Brug, Marcel P.; Wahlestedt, Claes] Scripps Florida, Scripps Res Inst, Dept Neurosci, Jupiter, FL 33458 USA.
[Wahlestedt, Claes] Scripps Florida, Scripps Res Inst, Dept Mol Therapeut, Jupiter, FL 33458 USA.
[Zhang, Ming] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Huang, Jia] Miller Sch Med, Miami Inst Human Gen, Miami, FL 33101 USA.
[Nalls, Michael A.; Cookson, Mark R.] NIA, Neurogenet Lab, Intramural Res Program, NIH, Bethesda, MD 20892 USA.
[St-Laurent, Georges, III] Brown Univ, Dept Biol, Providence, RI 02912 USA.
RP Wahlestedt, C (reprint author), Scripps Florida, Scripps Res Inst, Dept Neurosci, 130 Scripps Way, Jupiter, FL 33458 USA.
EM clawah@scripps.edu
FU National Institute of Neurological Disorders and Stroke (NINDS) [RO1
NS063974]; National Institute of Aging (NIA) [1RC2 AG036596]
FX We are grateful to Drs Barbara G Sahagan, Douglas E Wood, Todd E Morgan
and Caleb E Finch for providing human brain samples and to Dr Corinne
Lasmezas for providing miRNA over-expression vectors. We are also
grateful to Dr Jannet Kocerha for technical help and discussion. This
research was supported in part by grants from the National Institute of
Neurological Disorders and Stroke (NINDS), RO1 NS063974, and from the
National Institute of Aging (NIA), 1RC2 AG036596. This research was also
supported in part by the Intramural Research Program of the NIA. All
authors affirm that there is no conflict of interest that would
prejudice the impartiality of this original work.
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SN 1474-7596
J9 GENOME BIOL
JI Genome Biol.
PY 2010
VL 11
IS 5
AR R56
DI 10.1186/gb-2010-11-5-r56
PG 13
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 622AS
UT WOS:000279631000021
PM 20507594
ER
PT J
AU Mungall, CJ
Gkoutos, GV
Smith, CL
Haendel, MA
Lewis, SE
Ashburner, M
AF Mungall, Christopher J.
Gkoutos, Georgios V.
Smith, Cynthia L.
Haendel, Melissa A.
Lewis, Suzanna E.
Ashburner, Michael
TI Integrating phenotype ontologies across multiple species
SO GENOME BIOLOGY
LA English
DT Article
ID HUMAN-GENOME; TOOL; INFORMATION; FRAMEWORK; EVOLUTION; DATABASE;
BIOLOGY; ANATOMY; SUPPORT; MODEL
AB Phenotype ontologies are typically constructed to serve the needs of a particular community, such as annotation of genotype-phenotype associations in mouse or human. Here we demonstrate how these ontologies can be improved through assignment of logical definitions using a core ontology of phenotypic qualities and multiple additional ontologies from the Open Biological Ontologies library. We also show how these logical definitions can be used for data integration when combined with a unified multi-species anatomy ontology.
C1 [Mungall, Christopher J.; Lewis, Suzanna E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Genome Dynam Dept, Berkeley, CA 94720 USA.
[Gkoutos, Georgios V.; Ashburner, Michael] Univ Cambridge, Dept Genet, Cambridge CB2 3EH, England.
[Smith, Cynthia L.] Jackson Lab, Bar Harbor, ME 04609 USA.
[Haendel, Melissa A.] Univ Oregon, Zebrafish Informat Network, Eugene, OR 97403 USA.
RP Mungall, CJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Genome Dynam Dept, Berkeley, CA 94720 USA.
EM cjm@berkeleybop.org
RI Smith, Cynthia/A-5646-2009
OI Mungall, Christopher/0000-0002-6601-2165; Haendel,
Melissa/0000-0001-9114-8737; Lewis, Suzanna/0000-0002-8343-612X; Smith,
Cynthia/0000-0003-3691-0324
FU NIH [U54 HG004028]; NHGRI/NIH [HG000330]; BBSRC [BG/G004358/1]
FX CJM, GG, MAH, MA and SEL were funded by NIH grant U54 HG004028. CJM and
SEL were also funded by NIH grant [BIRN number here]. CLS was funded by
NHGRI/NIH grant HG000330. GG and MAH were also funded by BBSRC grant
[BG/G004358/1]. Many thanks to Nicole Washington for comments on the
manuscript. We would also like to thank the two anonymous reviewers who
provided helpful comments for improvement.
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J9 GENOME BIOL
JI Genome Biol.
PY 2010
VL 11
IS 1
AR R2
DI 10.1186/gb-2010-11-1-r2
PG 16
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 580FS
UT WOS:000276433600010
PM 20064205
ER
PT J
AU Pennacchio, LA
AF Pennacchio, Len A.
TI Large-scale identification of tissue-specific enhancers in vivo
SO GENOME BIOLOGY
LA English
DT Meeting Abstract
C1 [Pennacchio, Len A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Genom Div, Berkeley, CA 94720 USA.
[Pennacchio, Len A.] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA.
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J9 GENOME BIOL
JI Genome Biol.
PY 2010
VL 11
SU 1
AR I7
DI 10.1186/gb-2010-11-S1-I7
PG 1
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 674VT
UT WOS:000283779100018
ER
PT J
AU Swaminathan, K
Alabady, MS
Varala, K
De Paoli, E
Ho, I
Rokhsar, DS
Arumuganathan, AK
Ming, R
Green, PJ
Meyers, BC
Moose, SP
Hudson, ME
AF Swaminathan, Kankshita
Alabady, Magdy S.
Varala, Kranthi
De Paoli, Emanuele
Ho, Isaac
Rokhsar, Dan S.
Arumuganathan, Aru K.
Ming, Ray
Green, Pamela J.
Meyers, Blake C.
Moose, Stephen P.
Hudson, Matthew E.
TI Genomic and small RNA sequencing of Miscanthus x giganteus shows the
utility of sorghum as a reference genome sequence for Andropogoneae
grasses
SO GENOME BIOLOGY
LA English
DT Article
ID MAIZE GENOME; PHYLOGENETIC INFERENCE; C-4 PHOTOSYNTHESIS; COLD
TOLERANCE; COMPLEX GENOME; RIBOSOMAL DNA; TRNL-F; EVOLUTION; POACEAE;
ADAPTATION
AB Background: Miscanthus x giganteus (Mxg) is a perennial grass that produces superior biomass yields in temperate environments. The essentially uncharacterized triploid genome (3n = 57, x = 19) of Mxg is likely critical for the rapid growth of this vegetatively propagated interspecific hybrid.
Results: A survey of the complex Mxg genome was conducted using 454 pyrosequencing of genomic DNA and Illumina sequencing-by-synthesis of small RNA. We found that the coding fraction of the Mxg genome has a high level of sequence identity to that of other grasses. Highly repetitive sequences representing the great majority of the Mxg genome were predicted using non-cognate assembly for de novo repeat detection. Twelve abundant families of repeat were observed, with those related to either transposons or centromeric repeats likely to comprise over 95% of the genome. Comparisons of abundant repeat sequences to a small RNA survey of three Mxg organs (leaf, rhizome, inflorescence) revealed that the majority of observed 24-nucleotide small RNAs are derived from these repetitive sequences. We show that high-copy-number repeats match more of the small RNA, even when the amount of the repeat sequence in the genome is accounted for.
Conclusions: We show that major repeats are present within the triploid Mxg genome and are actively producing small RNAs. We also confirm the hypothesized origins of Mxg, and suggest that while the repeat content of Mxg differs from sorghum, the sorghum genome is likely to be of utility in the assembly of a gene-space sequence of Mxg.
C1 [Swaminathan, Kankshita; Varala, Kranthi; Moose, Stephen P.; Hudson, Matthew E.] Univ Illinois, Dept Crop Sci, Urbana, IL 61801 USA.
[Swaminathan, Kankshita; Alabady, Magdy S.; Ming, Ray; Moose, Stephen P.; Hudson, Matthew E.] Univ Illinois, Energy Biosci Inst, Urbana, IL 61801 USA.
[Swaminathan, Kankshita; Alabady, Magdy S.; Ming, Ray; Moose, Stephen P.; Hudson, Matthew E.] Univ Illinois, Inst Genom Biol, Urbana, IL 61801 USA.
[De Paoli, Emanuele; Green, Pamela J.; Meyers, Blake C.] Univ Delaware, Dept Plant & Soil Sci, Delaware Biotechnol Inst, Newark, DE 19716 USA.
[Ho, Isaac; Rokhsar, Dan S.] DOE Joint Genome Inst, Walnut Creek, CA 94598 USA.
[Rokhsar, Dan S.] Univ Calif Berkeley, Ctr Integrat Genom, Berkeley, CA 94720 USA.
[Arumuganathan, Aru K.] Benaroya Res Inst Virginia Mason, Seattle, WA 98101 USA.
[Ming, Ray] Univ Illinois, Dept Plant Biol, Urbana, IL 61801 USA.
[Green, Pamela J.] Univ Delaware, Coll Marine Studies, Newark, DE 19711 USA.
RP Hudson, ME (reprint author), Univ Illinois, Dept Crop Sci, Urbana, IL 61801 USA.
EM mhudson@illinois.edu
RI Hudson, Matthew/A-4438-2008; Varala, Kranthi/A-2954-2013; Meyers,
Blake/B-6535-2012
OI Hudson, Matthew/0000-0002-4737-0936; Varala,
Kranthi/0000-0003-1051-6636; Meyers, Blake/0000-0003-3436-6097
FU Energy Biosciences Institute; NSF DBI [0638525]
FX We thank Dr Jack Juvik (University of Illinois at Urbana-Champaign) for
providing tissue samples of Miscanthus accessions, Geoff Benn to for
growth and sampling of plants used in DNA and RNA isolations, Dr Karen
Hudson for critical reading of the manuscript, and the Roy J Carver
Biotechnology Center at the University of Illinois at Urbana-Champaign
for generating the 454 sequencing data. Funding for the genome survey
work and all analysis was provided by the Energy Biosciences Institute
to SPM, MEH, RM and DR, unding for sRNA data was provided by NSF DBI
#0638525 to BCM and PJG.
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PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1474-760X
J9 GENOME BIOL
JI Genome Biol.
PY 2010
VL 11
IS 2
AR R12
DI 10.1186/gb-2010-11-2-r12
PG 18
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 580FX
UT WOS:000276434300007
PM 20128909
ER
PT J
AU Wang, SL
Peatman, E
Abernathy, J
Waldbieser, G
Lindquist, E
Richardson, P
Lucas, S
Wang, M
Li, P
Thimmapuram, J
Liu, L
Vullaganti, D
Kucuktas, H
Murdock, C
Small, BC
Wilson, M
Liu, H
Jiang, YL
Lee, Y
Chen, F
Lu, JG
Wang, WQ
Xu, P
Somridhivej, B
Baoprasertkul, P
Quilang, J
Sha, ZX
Bao, BL
Wang, YP
Wang, Q
Takano, T
Nandi, S
Liu, SK
Wong, LL
Kaltenboeck, L
Quiniou, S
Bengten, E
Miller, N
Trant, J
Rokhsar, D
Liu, ZJ
AF Wang, Shaolin
Peatman, Eric
Abernathy, Jason
Waldbieser, Geoff
Lindquist, Erika
Richardson, Paul
Lucas, Susan
Wang, Mei
Li, Ping
Thimmapuram, Jyothi
Liu, Lei
Vullaganti, Deepika
Kucuktas, Huseyin
Murdock, Christopher
Small, Brian C.
Wilson, Melanie
Liu, Hong
Jiang, Yanliang
Lee, Yoona
Chen, Fei
Lu, Jianguo
Wang, Wenqi
Xu, Peng
Somridhivej, Benjaporn
Baoprasertkul, Puttharat
Quilang, Jonas
Sha, Zhenxia
Bao, Baolong
Wang, Yaping
Wang, Qun
Takano, Tomokazu
Nandi, Samiran
Liu, Shikai
Wong, Lilian
Kaltenboeck, Ludmilla
Quiniou, Sylvie
Bengten, Eva
Miller, Norman
Trant, John
Rokhsar, Daniel
Liu, Zhanjiang
CA Catfish Genome Consortium
TI Assembly of 500,000 inter-specific catfish expressed sequence tags and
large scale gene-associated marker development for whole genome
association studies
SO GENOME BIOLOGY
LA English
DT Article
ID BAC-END SEQUENCES; CHANNEL CATFISH; ICTALURUS-PUNCTATUS; TRANSCRIPTOME
ANALYSIS; MOLECULAR CHARACTERIZATION; INITIAL ANALYSIS; EST CLUSTERS;
PHYSICAL MAP; LINKAGE MAP; MICROSATELLITES
AB Background: Through the Community Sequencing Program, a catfish EST sequencing project was carried out through a collaboration between the catfish research community and the Department of Energy's Joint Genome Institute. Prior to this project, only a limited EST resource from catfish was available for the purpose of SNP identification.
Results: A total of 438,321 quality ESTs were generated from 8 channel catfish (Ictalurus punctatus) and 4 blue catfish (Ictalurus furcatus) libraries, bringing the number of catfish ESTs to nearly 500,000. Assembly of all catfish ESTs resulted in 45,306 contigs and 66,272 singletons. Over 35% of the unique sequences had significant similarities to known genes, allowing the identification of 14,776 unique genes in catfish. Over 300,000 putative SNPs have been identified, of which approximately 48,000 are high-quality SNPs identified from contigs with at least four sequences and the minor allele presence of at least two sequences in the contig. The EST resource should be valuable for identification of microsatellites, genome annotation, large-scale expression analysis, and comparative genome analysis.
Conclusions: This project generated a large EST resource for catfish that captured the majority of the catfish transcriptome. The parallel analysis of ESTs from two closely related Ictalurid catfishes should also provide powerful means for the evaluation of ancient and recent gene duplications, and for the development of high-density microarrays in catfish. The inter-and intra-specific SNPs identified from all catfish EST dataset assembly will greatly benefit the catfish introgression breeding program and whole genome association studies.
C1 [Wang, Shaolin; Peatman, Eric; Abernathy, Jason; Li, Ping; Kucuktas, Huseyin; Liu, Hong; Jiang, Yanliang; Lee, Yoona; Chen, Fei; Lu, Jianguo; Wang, Wenqi; Xu, Peng; Somridhivej, Benjaporn; Baoprasertkul, Puttharat; Quilang, Jonas; Sha, Zhenxia; Bao, Baolong; Wang, Yaping; Wang, Qun; Takano, Tomokazu; Nandi, Samiran; Liu, Shikai; Wong, Lilian; Kaltenboeck, Ludmilla; Liu, Zhanjiang] Auburn Univ, Fish Mol Genet & Biotechnol Lab, Dept Fisheries & Allied Aquacultures, Auburn, AL 36849 USA.
[Waldbieser, Geoff; Murdock, Christopher; Small, Brian C.; Quiniou, Sylvie] ARS, USDA, Catfish Genet Res Unit, Stoneville, MS 38776 USA.
[Lindquist, Erika; Richardson, Paul; Lucas, Susan; Wang, Mei; Rokhsar, Daniel] DOE Joint Genome Inst, Genom Technol Dept, Walnut Creek, CA 94598 USA.
[Thimmapuram, Jyothi; Liu, Lei; Vullaganti, Deepika] Univ Illinois, WM Keck Ctr Comparat & Funct Genom, Urbana, IL 61801 USA.
[Wilson, Melanie; Bengten, Eva; Miller, Norman] Univ Mississippi, Med Ctr, Dept Microbiol, Jackson, MS 39216 USA.
[Trant, John] Univ Maryland, Inst Biotechnol, Ctr Marine Biotechnol, Baltimore, MD 21202 USA.
[Rokhsar, Daniel] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
RP Liu, ZJ (reprint author), Auburn Univ, Fish Mol Genet & Biotechnol Lab, Dept Fisheries & Allied Aquacultures, 203 Swingle Hall, Auburn, AL 36849 USA.
EM liuzhan@auburn.edu
RI Liu, Shikai /D-4664-2013; Xu, Peng/J-4018-2012; Wang, Qun/I-7778-2013;
Wang, Shaolin/M-2282-2013;
OI Liu, Shikai /0000-0001-5777-489X; Wang, Qun/0000-0001-7929-7692; Wang,
Shaolin/0000-0003-0866-4584; Abernathy, Jason/0000-0001-6084-8239
FU Joint Genome Institute of the Department of Energy; USDA NRI
[2006-35616-16685]
FX This project was supported by the Community Sequencing Program of the
Joint Genome Institute of the Department of Energy, and partially by
grants from USDA NRI Animal Genome Basic Genome Reagents and Tools
Program (USDA/NRICGP award # 2006-35616-16685 and USDA/NRICGP award #
2009-35205 05101) and by USDA ARS (CRIS 6402-31000-008-00). The
sequencing work was performed under the auspices of the US Department of
Energy's Office of Science, Biological and Environmental Research
Program, and by the University of California, Lawrence Berkeley National
Laboratory under contract No. DE-AC02-05CH11231, Lawrence Livermore
National Laboratory under contract No. DE-AC52-07NA27344, and Los Alamos
National Laboratory under contract No. DE-AC02-06NA25396. Thanks are
given to Alabama Supercomputer Center for providing the computer
capacity for the bioinformatics analysis of the ESTs. We are grateful to
The Catfish Genome Consortium that supported this Community Sequencing
Project, and the consortium is composed of those in the authorship as
well as the following in an alphabetical order: Jerald Ainsworth, Ihan
Altinok, Cova R Arias, Joel A Bader, Anita L Bilodeau, Curtis Bird, Jan
Bogerd, Brian G Bosworth, Richard C Bruch, Karen Burnett, John T Caprio,
Jesse Chappell, Nagaraj Chatakondi, Gregory Chinchar, Walton W Dickhoff,
Richard T DiGiulio, Cunming Duan, Mary V Duke, Rex A Dunham, Steve
Gabel, Troy A Giambernardi, WL Gray, Eric D Green, Larry A Hanson,
Michael Hardman, Chongbo He, Jun-ichi Hikima, Alison Hutson, Liliana
Jaso-Friedmann, Zhenlin Ju, Attila Karsi, Kevin Kelley, David Kingsley,
Conrad Kleinholz, Philip H Klesius, Arif Kocabas, Won Kyo Lee, Mara
Lennard, Wayne Litaker, Gary W Litman, Craig J Lobb, George Luker, Brad
G Magor, Thomas J McConnell, William Muir, Edward Noga, Kenneth Nusbaum,
Donald D Ourth, Victor Panangala, Reynaldo Patino, Brian C Peterson,
Ronald Phelps, Karen P Plant, John H Postlethwait, Herbert E Quintero,
Daniel Rodriguez, Holly L Saunders, Brian Scheffler, Tom Schwedler,
Richard A Shelby, William Simco, Craig A Shoemaker, Letong Tang, Jeff
Terhune, Ronald L Thune, Terrence R Tiersch, Gregory W Warr, Thomas
Welker, Monte Westerfield, Kristie L Willett, Kenneth Williams, Richard
Winn, Changgong Wu, Dehai Xu, Roger Yant, Hung-Y Yeh, Yonathan Zohar,
and Jun Zou
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J9 GENOME BIOL
JI Genome Biol.
PY 2010
VL 11
IS 1
AR R8
DI 10.1186/gb-2010-11-1-r8
PG 14
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 580FS
UT WOS:000276433600009
PM 20096101
ER
PT J
AU Wortman, J
Giglio, M
Creasy, H
Chen, A
Liolios, K
Chu, K
Davidovics, N
Mazaitis, M
DeSantis, T
Singh, N
Orvis, J
Crabtree, J
Felix, V
Jordan, C
Mahurkar, A
Knight, R
Andersen, G
Kyrpides, N
Markowitz, V
White, O
AF Wortman, Jennifer
Giglio, Michelle
Creasy, Heather
Chen, Amy
Liolios, Konstantinos
Chu, Ken
Davidovics, Noam
Mazaitis, Mark
DeSantis, Todd
Singh, Navjeet
Orvis, Joshua
Crabtree, Jonathan
Felix, Victor
Jordan, Catherine
Mahurkar, Anup
Knight, Rob
Andersen, Gary
Kyrpides, Nikos
Markowitz, Victor
White, Owen
TI A data analysis and coordination center for the human microbiome project
SO GENOME BIOLOGY
LA English
DT Meeting Abstract
C1 [Wortman, Jennifer; Giglio, Michelle; Creasy, Heather; Davidovics, Noam; Mazaitis, Mark; Orvis, Joshua; Crabtree, Jonathan; Felix, Victor; Jordan, Catherine; Mahurkar, Anup; White, Owen] Univ Maryland, Sch Med, Inst Genome Sci, Baltimore, MD 21201 USA.
[Chen, Amy; Chu, Ken; DeSantis, Todd; Singh, Navjeet; Andersen, Gary; Markowitz, Victor] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Liolios, Konstantinos; Kyrpides, Nikos] Joint Genome Inst, Walnut Creek, CA USA.
[Knight, Rob] Univ Colorado, Boulder, CO 80309 USA.
RI Andersen, Gary/G-2792-2015; Kyrpides, Nikos/A-6305-2014
OI Andersen, Gary/0000-0002-1618-9827; Kyrpides, Nikos/0000-0002-6131-0462
NR 1
TC 1
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U1 1
U2 6
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1474-760X
J9 GENOME BIOL
JI Genome Biol.
PY 2010
VL 11
SU 1
AR O13
DI 10.1186/gb-2010-11-S1-O13
PG 1
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 674VT
UT WOS:000283779100024
ER
PT J
AU Vaishampayan, PA
Kuehl, JV
Froula, JL
Morgan, JL
Ochman, H
Francino, MP
AF Vaishampayan, Parag A.
Kuehl, Jennifer V.
Froula, Jeffrey L.
Morgan, Jenna L.
Ochman, Howard
Pilar Francino, M.
TI Comparative Metagenomics and Population Dynamics of the Gut Microbiota
in Mother and Infant
SO GENOME BIOLOGY AND EVOLUTION
LA English
DT Article
DE Bacteroides; Bifidobacterium; gut microbiota; community genomics;
bacterial population genetics
ID 16S RIBOSOMAL-RNA; GASTROINTESTINAL-TRACT; MOLECULAR ANALYSIS;
INTESTINAL MICROBIOTA; SEQUENCE DATA; COMMUNITIES; DIVERSITY; BACTERIA;
IDENTIFICATION; HYBRIDIZATION
AB Colonization of the gastrointestinal tract (GIT) of human infants with a suitable microbial community is essential for numerous aspects of health, but the progression of events by which this microbiota becomes established is poorly understood. Here, we investigate two previously unexplored areas of microbiota development in infants: the deployment of functional capabilities at the community level and the population genetics of its most abundant genera. To assess the progression of the infant microbiota toward an adult-like state and to evaluate the contribution of maternal GIT bacteria to the infant gut, we compare the infant's microbiota with that of the mother at 1 and 11 months after delivery. These comparisons reveal that the infant's microbiota rapidly acquires and maintains the range of gene functions present in the mother, without replicating the phylogenetic composition of her microbiota. Microdiversity analyses for Bacteroides and Bifidobacterium, two of the main microbiota constituents, reveal that by 11 months, the phylotypes detected in the infant are distinct from those in the mother, although the maternal Bacteroides phylotypes were transiently present at 1 month of age. The configuration of genetic variants within these genera reveals populations far from equilibrium and likely to be undergoing rapid growth, consistent with recent population turnovers. Such compositional turnovers and the associated loss of maternal phylotypes should limit the potential for long-term coadaptation between specific bacterial and host genotypes.
C1 [Vaishampayan, Parag A.; Kuehl, Jennifer V.; Froula, Jeffrey L.; Morgan, Jenna L.; Pilar Francino, M.] DOE Joint Genome Inst, Evolutionary Genom Program, Walnut Creek, CA USA.
[Ochman, Howard] Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA.
[Ochman, Howard] Univ Arizona, Dept Biochem & Mol Biophys, Tucson, AZ 85721 USA.
RP Francino, MP (reprint author), UVEG, Inst Cavanilles, Unitat Mixta Invest Genom & Salut, Ctr Super Invest Salut Publ, Valencia, Spain.
EM Francino_pil@gva.es
RI Francino, M. Pilar/H-9090-2015
OI Francino, M. Pilar/0000-0002-4510-5653
FU National Institutes of Health [R01 DK66288]; US Department of Energy's
Office of Science; University of California; Lawrence Berkeley National
Laboratory [DE-AC03-76SF00098]
FX We thank Falk Warnecke for introducing us to the ARB package, Edward
Kirton for processing sequencing data through the Genelib pipeline,
Kostas Mavrommatis and Ernest Szeto for assistance with IMG, Juan Jose
Abellan for statistical advice, and Becky Nankivell and Shubhangi Kadhe
for help in the preparation of the figures. This work was supported by
the National Institutes of Health (grant number R01 DK66288 to M. P.
F.). This work has been performed under the auspices of the US
Department of Energy's Office of Science, Biological and Environmental
Research Program and by the University of California, Lawrence Berkeley
National Laboratory under contract number DE-AC03-76SF00098.
NR 57
TC 91
Z9 94
U1 4
U2 31
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 1759-6653
J9 GENOME BIOL EVOL
JI Genome Biol. Evol.
PY 2010
VL 2
BP 53
EP 66
DI 10.1093/gbe/evp057
PG 14
WC Evolutionary Biology; Genetics & Heredity
SC Evolutionary Biology; Genetics & Heredity
GA 633DP
UT WOS:000280480000007
PM 20333224
ER
PT J
AU Wurtzel, O
Sapra, R
Chen, F
Zhu, YW
Simmons, BA
Sorek, R
AF Wurtzel, Omri
Sapra, Rajat
Chen, Feng
Zhu, Yiwen
Simmons, Blake A.
Sorek, Rotem
TI A single-base resolution map of an archaeal transcriptome
SO GENOME RESEARCH
LA English
DT Article
ID ENCODED ANTISENSE RNAS; SULFOLOBUS-SOLFATARICUS; TRANSLATION INITIATION;
NONCODING RNAS; TATA BOX; BACTERIA; GENOME; MECHANISMS; IDENTIFICATION;
PROMOTER
AB Organisms of the third domain of life, the Archaea, share molecular characteristics both with Bacteria and Eukarya. These organisms attract scientific attention as research models for regulation and evolution of processes such as transcription, translation, and RNA processing. We have reconstructed the primary transcriptome of Sulfolobus solfataricus P2, one of the most widely studied model archaeal organisms. Analysis of 625 million bases of sequenced cDNAs yielded a single-base-pair resolution map of transcription start sites and operon structures for more than 1000 transcriptional units. The analysis led to the discovery of 310 expressed noncoding RNAs, with an extensive expression of overlapping cis-antisense transcripts to a level unprecedented in any bacteria or archaea but resembling that of eukaryotes. As opposed to bacterial transcripts, most Sulfolobus transcripts completely lack 5'-UTR sequences, suggesting that mRNA/ncRNA interactions differ between Bacteria and Archaea. The data also reveal internal hotspots for transcript cleavage linked to RNA degradation and predict sequence motifs that promote RNA destabilization. This study highlights transcriptome sequencing as a key tool for understanding the mechanisms and extent of RNA-based regulation in Bacteria and Archaea.
C1 [Wurtzel, Omri; Sorek, Rotem] Weizmann Inst Sci, Dept Mol Genet, IL-76100 Rehovot, Israel.
[Sapra, Rajat; Simmons, Blake A.] Sandia Natl Labs, Livermore, CA 94551 USA.
[Sapra, Rajat; Simmons, Blake A.] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
[Chen, Feng; Zhu, Yiwen] US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA.
[Zhu, Yiwen] Lawrence Berkeley Natl Lab, Genom Div, Berkeley, CA 94720 USA.
RP Sorek, R (reprint author), Weizmann Inst Sci, Dept Mol Genet, IL-76100 Rehovot, Israel.
EM rotem.sorek@weizmann.ac.il
OI Simmons, Blake/0000-0002-1332-1810
FU Alon Fellowship; Y. Leon Benoziyo Institute for Molecular Medicine; The
Crown Human Genome Center; M.D. Moross Institute for Cancer Research;
Kahn Center for Systems Biology of the Human Cell; Azrieli Foundation
FX We thank Naama Barkai, Dvir Dahary, Zohar Biron-Sorek, Debbie Lindell,
Oded Beja, Bareket Dassa, Gil Amitai, Yonit Halperin, Shula Michaeli,
Igor Ulitsky, and Gadi Schuster for scientific discussion and comments
on earlier versions of the manuscript. We also thank David Bernick for
assistance in the RNA preparation protocols, and Shirley Horn-Saban and
Daniella Amann-Zalcenstein for assistance in Illumina sequencing. R. S.
was supported by the Alon Fellowship, the Y. Leon Benoziyo Institute for
Molecular Medicine, The Crown Human Genome Center, and the M.D. Moross
Institute for Cancer Research. O.W. was supported by the Kahn Center for
Systems Biology of the Human Cell, and is grateful to the Azrieli
Foundation for the award of an Azrieli Fellowship.
NR 39
TC 187
Z9 193
U1 3
U2 26
PU COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
PI WOODBURY
PA 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2924 USA
SN 1088-9051
J9 GENOME RES
JI Genome Res.
PD JAN
PY 2010
VL 20
IS 1
BP 133
EP 141
DI 10.1101/gr.100396.109
PG 9
WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Genetics & Heredity
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Genetics & Heredity
GA 539JF
UT WOS:000273249500014
PM 19884261
ER
PT S
AU Skurikhin, AN
AF Skurikhin, A. N.
BE Addink, EA
VanCoillie, FMB
TI PATCH-BASED IMAGE SEGMENTATION OF SATELLITE IMAGERY USING MINIMUM
SPANNING TREE CONSTRUCTION
SO GEOBIA 2010: GEOGRAPHIC OBJECT-BASED IMAGE ANALYSIS
SE International Archives of the Photogrammetry Remote Sensing and Spatial
Information Sciences
LA English
DT Proceedings Paper
CT Conference on Geographic Object-Based Image Analysis (GEOBIA)
CY JUN 29-JUL 02, 2010
CL Ghent, BELGIUM
SP Int Soc Photogrammetry & Remote Sensing
DE Segmentation; Laplacian; Delaunay Triangulation; Minimum Spanning Tree
ID MEAN SHIFT; ALGORITHM
AB We present a method for hierarchical image segmentation and feature extraction. This method builds upon the combination of the detection of image spectral discontinuities using Canny edge detection and the image Laplacian, followed by the construction of a hierarchy of segmented images of successively reduced levels of details. These images are represented as sets of polygonized pixel patches (polygons) attributed with spectral and structural characteristics. This hierarchy forms the basis for object-oriented image analysis. To build fine level-of-detail representation of the original image, seed partitions (polygons) are built upon a triangular mesh composed of irregular sized triangles, whose spatial arrangement is adapted to the image content. This is achieved by building the triangular mesh on the top of the detected spectral discontinuities that form a network of constraints for the Delaunay triangulation. A polygonized image is represented as a spatial network in the form of a graph with vertices which correspond to the polygonal partitions and graph edges reflecting pairwise partitions relations. Image graph partitioning is based on the iterative graph contraction using Boruvka's Minimum Spanning Tree algorithm. An important characteristic of the approach is that the agglomeration of partitions is constrained by the detected spectral discontinuities; thus the shapes of agglomerated partitions are more likely to correspond to the outlines of real-world objects.
C1 Los Alamos Natl Lab, Space & Remote Sensing Grp, Los Alamos, NM 87545 USA.
RP Skurikhin, AN (reprint author), Los Alamos Natl Lab, Space & Remote Sensing Grp, MS D436, Los Alamos, NM 87545 USA.
EM alexei@lanl.gov
NR 26
TC 0
Z9 0
U1 0
U2 0
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLE 1E, GOTTINGEN, 37081, GERMANY
SN 2194-9034
J9 INT ARCH PHOTOGRAMM
PY 2010
VL 38-4-C7
PG 6
WC Geography, Physical; Remote Sensing; Imaging Science & Photographic
Technology
SC Physical Geography; Remote Sensing; Imaging Science & Photographic
Technology
GA BD1WL
UT WOS:000358414100067
ER
PT J
AU Reardon, CL
Dohnalkova, AC
Nachimuthu, P
Kennedy, DW
Saffarini, DA
Arey, BW
Shi, L
Wang, Z
Moore, D
Mclean, JS
Moyles, D
Marshall, MJ
Zachara, JM
Fredrickson, JK
Beliaev, AS
AF Reardon, C. L.
Dohnalkova, A. C.
Nachimuthu, P.
Kennedy, D. W.
Saffarini, D. A.
Arey, B. W.
Shi, L.
Wang, Z.
Moore, D.
Mclean, J. S.
Moyles, D.
Marshall, M. J.
Zachara, J. M.
Fredrickson, J. K.
Beliaev, A. S.
TI Role of outer-membrane cytochromes MtrC and OmcA in the
biomineralization of ferrihydrite by Shewanella oneidensis MR-1
SO GEOBIOLOGY
LA English
DT Article
ID EXTRACELLULAR ELECTRON-TRANSFER; DISSIMILATORY IRON REDUCTION; C-TYPE
CYTOCHROMES; GEOBACTER-SULFURREDUCENS; PUTREFACIENS MR-1; OXIDE
REDUCTION; HIGH-AFFINITY; ANAEROBIC RESPIRATION; MICROBIAL REDUCTION;
BACTERIAL NANOWIRES
AB In an effort to improve the understanding of electron transfer mechanisms at the microbe-mineral interface, Shewanella oneidensis MR-1 mutants with in-frame deletions of outer-membrane cytochromes (OMCs), MtrC and OmcA, were characterized for the ability to reduce ferrihydrite (FH) using a suite of microscopic, spectroscopic, and biochemical techniques. Analysis of purified recombinant proteins demonstrated that both cytochromes undergo rapid electron exchange with FH in vitro with MtrC displaying faster transfer rates than OmcA. Immunomicroscopy with cytochrome-specific antibodies revealed that MtrC co-localizes with iron solids on the cell surface while OmcA exhibits a more diffuse distribution over the cell surface. After 3-day incubation of MR-1 with FH, pronounced reductive transformation mineral products were visible by electron microscopy. Upon further incubation, the predominant phases identified were ferrous phosphates including vivianite [Fe(3)(PO(4))(2)center dot 8H(2)O] and a switzerite-like phase [Mn(3),Fe(3)(PO(4))(2)center dot 7H(2)O] that were heavily colonized by MR-1 cells with surface-exposed outer-membrane cytochromes. In the absence of both MtrC and OmcA, the cells ability to reduce FH was significantly hindered and no mineral transformation products were detected. Collectively, these results highlight the importance of the outer-membrane cytochromes in the reductive transformation of FH and support a role for direct electron transfer from the OMCs at the cell surface to the mineral.
C1 [Reardon, C. L.; Dohnalkova, A. C.; Nachimuthu, P.; Kennedy, D. W.; Arey, B. W.; Shi, L.; Wang, Z.; Moore, D.; Marshall, M. J.; Zachara, J. M.; Fredrickson, J. K.; Beliaev, A. S.] Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
[Saffarini, D. A.] Univ Wisconsin, Dept Biol Sci, Milwaukee, WI 53201 USA.
[Moyles, D.] Univ Guelph, Dept Mol & Cellular Biol, Guelph, ON N1G 2W1, Canada.
RP Beliaev, AS (reprint author), Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA.
EM jim.fredrickson@pnl.gov; alex.beliaev@pnl.gov
RI Wang, Zheming/E-8244-2010; McLean, Jeffrey/A-8014-2012; Beliaev,
Alexander/E-8798-2016;
OI Wang, Zheming/0000-0002-1986-4357; McLean, Jeffrey/0000-0001-9934-5137;
Beliaev, Alexander/0000-0002-6766-4632; Kennedy,
David/0000-0003-0763-501X
FU U.S. Department of Energy (DOE) Office of Biological and Environmental
Research; Pacific Northwest National Laboratory (PNNL); EMSL; OBER
[DE-AC05-76RLO 1830]
FX We thank Dr Heather Owen and Sheetal Shirodkar for assistance with the
electron microscopy imaging, Anthony Addlagatta for help with the
micro-XRD analysis, and Dr Margaret Romine, Samantha Bree Reed, David E.
Culley and Yang Zhang for mutant construction and complementation
analysis. This research was supported by the U.S. Department of Energy
(DOE) Office of Biological and Environmental Research under the
Genomics:GTL Program via the Shewanella Federation consortium, by the
Pacific Northwest National Laboratory (PNNL) Biogeochemistry Grand
Challenge and by EMSL Scientific Grand Challenge project at the W. R.
Wiley Environmental Molecular Sciences Laboratory, a national scientific
user facility sponsored by OBER and located at PNNL. Pacific Northwest
National Laboratory is operated for the DOE by Battelle Memorial
Institute under Contract DE-AC05-76RLO 1830.
NR 68
TC 47
Z9 49
U1 2
U2 45
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1472-4677
J9 GEOBIOLOGY
JI Geobiology
PD JAN
PY 2010
VL 8
IS 1
BP 56
EP 68
DI 10.1111/j.1472-4669.2009.00226.x
PG 13
WC Biology; Environmental Sciences; Geosciences, Multidisciplinary
SC Life Sciences & Biomedicine - Other Topics; Environmental Sciences &
Ecology; Geology
GA 533PL
UT WOS:000272836600005
PM 20002197
ER
PT J
AU Marty, B
Zimmermann, L
Burnard, PG
Wieler, R
Heber, VS
Burnett, DL
Wiens, RC
Bochsler, P
AF Marty, Bernard
Zimmermann, Laurent
Burnard, Peter G.
Wieler, Rainer
Heber, Veronika S.
Burnett, Donald L.
Wiens, Roger C.
Bochsler, Peter
TI Nitrogen isotopes in the recent solar wind from the analysis of Genesis
targets: Evidence for large scale isotope heterogeneity in the early
solar system
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID MACROMOLECULAR ORGANIC-MATTER; CARBONACEOUS CHONDRITES; LUNAR REGOLITH;
D/H RATIO; ABUNDANCES; ARGON; NEON; FRACTIONATION; METEORITES; HYDROGEN
AB We have analyzed nitrogen, neon and argon abundances and isotopic ratios in target material exposed in space for 27 months to solar wind (SW) irradiation during the Genesis mission. SW ions were extracted by sequential UV (193 nm) laser ablation of gold-plated material, purified separately in a dedicated line, and analyzed by gas source static mass spectrometry. We analyzed gold-covered stainless steel pieces from the Concentrator, a device that concentrated SW ions by a factor of up to 50. Despite extensive terrestrial N contamination, we could identify a non-terrestrial, (15)N-depleted nitrogen end-member that points to a 40% depletion of 15 N in solar-wind N relative to inner planets and meteorites, and define a composition for the present-day Sun ((15)N/(14)N = [2.26 +/- 0.67] X 10(-3) 2 sigma), which is indistinguishable from that of Jupiter's atmosphere. These results indicate that the isotopic composition of nitrogen in the outer convective zone of the Sun has not changed through time, and is representative of the protosolar nebula. Large (15)N enrichments due to e.g., irradiation, low temperature isotopic exchange, or contributions from (15)N-rich presolar components, are therefore required to account for inner planet values. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Marty, Bernard; Zimmermann, Laurent; Burnard, Peter G.] Nancy Univ, Ctr Rech Petrog & Geochim, INSU, CNRS, F-54501 Vandoeuvre Les Nancy, France.
[Wieler, Rainer; Heber, Veronika S.] ETH, CH-8092 Zurich, Switzerland.
[Burnett, Donald L.] CALTECH, Dept Geol & Planetary Sci, Pasadena, CA 91125 USA.
[Wiens, Roger C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Bochsler, Peter] Univ Bern, Inst Phys, CH-3012 Bern, Switzerland.
RP Marty, B (reprint author), Nancy Univ, Ctr Rech Petrog & Geochim, INSU, CNRS, BP20, F-54501 Vandoeuvre Les Nancy, France.
EM bmarty@crpg.cnrs-nancy.fr
RI Wieler, Rainer/A-1355-2010
OI Wieler, Rainer/0000-0001-5666-7494
FU Centre National d'Etudes Spatiales; Centre National de la Recherche
Scientifique - Institut National des Sciences de I'Univers; Region
Lorraine; The Swiss National Science Foundation; NASA through the
Genesis mission
FX We are grateful to J.H. Allton, A.J.G. Jurewicz and the Genesis Curation
team at Johnson Space Center, NASA, Houston (USA) for excellent sample
selection and preparation. We are also thankful to the Concentrator
instrument team at Los Alamos National Laboratory for providing blanks
and information on the gold cross. F. Gaboriau, LCPME, Vandoeuvre les
Nancy (France) helped for atomic force microscopy analysis of test
samples. S. Sestak and I.A. Franchi did ozone cleaning of the samples at
the Open University, Milton Keynes (UK). J.I. Matsuda kindly provided
the 3He/4He gas sample used in this study. We
thank the members of the Genesis Science Team for constructive
interactions during the last 6 years. The manuscript benefitted from
stimulating reviews by A. Verchovsky, F. Robert and an anonymous
reviewer, and from careful editing by G. Herzog. This study was funded
by Centre National d'Etudes Spatiales, Centre National de la Recherche
Scientifique - Institut National des Sciences de I'Univers, Region
Lorraine, The Swiss National Science Foundation, and NASA through the
Genesis mission.
NR 65
TC 35
Z9 35
U1 0
U2 10
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD JAN 1
PY 2010
VL 74
IS 1
BP 340
EP 355
DI 10.1016/j.gca.2009.09.007
PG 16
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 537JR
UT WOS:000273109700023
ER
PT J
AU Swift, PN
AF Swift, P. N.
BE Ahn, J
Apted, MJ
TI Safety assessment for deep geological disposal of high-level radioactive
waste in geological repository systems
SO GEOLOGICAL REPOSITORY SYSTEMS FOR SAFE DISPOSAL OF SPENT NUCLEAR FUELS
AND RADIOACTIVE WASTE
SE Woodhead Publishing Series in Energy
LA English
DT Article; Book Chapter
DE safety assessment; performance assessment; geologic repositories; spent
nuclear fuel; high-level radioactive waste
AB Safety assessments estimate the long-term performance of geologic repositories for radioactive waste using quantitative models. This paper reviews regulatory standards, the iterative relationship between site characterization and safety assessment, selection of scenarios for analysis and the development of computational models and their linkage into a system analysis. Uncertainty must be acknowledged, and can be accounted for using both conservative deterministic and probabilistic approaches. In addition to generating performance estimates for comparison to regulatory standards, safety assessments can also guide research and model development, evaluate design alternatives, enhance the scientific understanding of the system and contribute to public acceptance.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Swift, PN (reprint author), Sandia Natl Labs, Mail Stop 1369, Albuquerque, NM 87185 USA.
EM pnswift@sandia.gov
NR 33
TC 3
Z9 3
U1 0
U2 1
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-978-9
J9 WOODHEAD PUBL SER EN
PY 2010
IS 9
BP 497
EP 521
D2 10.1533/9781845695422
PG 25
WC Engineering, Environmental; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA BRQ28
UT WOS:000283424700016
ER
PT B
AU Helton, JC
Sallaberry, CJ
AF Helton, J. C.
Sallaberry, C. J.
BE Ahn, J
Apted, MJ
TI Treatment of uncertainty in performance assessments for the geological
disposal of radioactive waste
SO GEOLOGICAL REPOSITORY SYSTEMS FOR SAFE DISPOSAL OF SPENT NUCLEAR FUELS
AND RADIOACTIVE WASTE
SE Woodhead Publishing Series in Energy
LA English
DT Article; Book Chapter
DE aleatory uncertainty; epistemic uncertainty; performance assessment;
radioactive waste disposal; sensitivity analysis; uncertainty analysis
ID PREDICTOR SMOOTHING METHODS; ISOLATION PILOT-PLANT; LARGE-SCALE SYSTEMS;
SENSITIVITY-ANALYSIS; RISK ASSESSMENTS; INPUT VARIABLES;
COMPLEX-SYSTEMS; EPISTEMIC UNCERTAINTY; STATISTICAL-METHODS; RANK
CORRELATION
AB The treatment of uncertainty in performance assessments for the geological disposal of radioactive waste is discussed and illustrated. The following topics are considered: (1) the conceptual design and structure of a performance assessment including the separation of aleatory and epistemic uncertainty, (2) the numerical propagation of uncertainty, (3) the computational design of a performance assessment, and (4) sampling-based methods for sensitivity analysis. The presented concepts and techniques are illustrated with results from the 2008 performance assessment for the proposed repository for high-level radioactive waste at Yucca Mountain, Nevada.
C1 [Sallaberry, C. J.] Sandia Natl Labs, Dept 6783, Albuquerque, NM 87185 USA.
[Helton, J. C.] Arizona State Univ, Tempe, AZ 85287 USA.
RP Helton, JC (reprint author), Sandia Natl Labs, Dept 1545, POB 5800, Albuquerque, NM 87185 USA.
EM jchelto@sandia.gov; cnsalla@sandia.gov
NR 69
TC 3
Z9 3
U1 0
U2 0
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-978-9
J9 WOODHEAD PUBL SER EN
PY 2010
IS 9
BP 547
EP 579
D2 10.1533/9781845695422
PG 33
WC Engineering, Environmental; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA BRQ28
UT WOS:000283424700018
ER
PT J
AU Jenni, KE
van Luik, A
AF Jenni, K. E.
van Luik, A.
BE Ahn, J
Apted, MJ
TI Assessment of expert judgments for safety analyses and performance
assessment of geological repository systems
SO GEOLOGICAL REPOSITORY SYSTEMS FOR SAFE DISPOSAL OF SPENT NUCLEAR FUELS
AND RADIOACTIVE WASTE
SE Woodhead Publishing Series in Energy
LA English
DT Article; Book Chapter
DE expert elicitation; multiple experts; aggregation of expert judgments;
quantifying uncertainty
ID PROBABILITY-DISTRIBUTIONS; DECISION-ANALYSIS; UNCERTAINTY;
APPROXIMATIONS; METHODOLOGY; VARIABLES
AB Expert judgments are used throughout safety analyses and performance assessments for geological disposal facilities. The term 'expert elicitation' in this area has come to be associated with multi-expert, multi-year studies focused on assessing expert judgments about highly complex, highly uncertain factors such as seismic and volcanic hazards. Less attention has been paid to the many other ways in which expert judgment is used and on the availability of structured approaches to improve both the quantification and the documentation of those expert judgments. Depending on the application, there are less intensive approaches to bringing discipline to the process of assessing, using and documenting expert judgment.
C1 [Jenni, K. E.] Insight Decis LLC, Denver, CO 80202 USA.
[van Luik, A.] US DOE, Off Civilian Radioact Waste Management, Las Vegas, NV 89134 USA.
RP Jenni, KE (reprint author), Insight Decis LLC, 1616 17th St,Suite 268, Denver, CO 80202 USA.
EM kjenni@insightdecisions.com; abe.vanluik@ymp.gov
NR 47
TC 2
Z9 2
U1 0
U2 1
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-978-9
J9 WOODHEAD PUBL SER EN
PY 2010
IS 9
BP 580
EP 609
D2 10.1533/9781845695422
PG 30
WC Engineering, Environmental; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA BRQ28
UT WOS:000283424700019
ER
PT J
AU Weil, AB
Yonkee, A
Sussman, A
AF Weil, Arlo Brandon
Yonkee, Adolph
Sussman, Aviva
TI Reconstructing the kinematic evolution of curved mountain belts: A
paleomagnetic study of Triassic red beds from the Wyoming salient,
Sevier thrust belt, USA
SO GEOLOGICAL SOCIETY OF AMERICA BULLETIN
LA English
DT Review
ID WESTERN UNITED-STATES; APPARENT POLAR WANDER; OVERTHRUST BELT;
NORTH-AMERICA; NEW-MEXICO; OROCLINE HYPOTHESIS; ACCRETIONARY WEDGES;
CHUGWATER FORMATION; COLORADO PLATEAU; CROSS-SECTIONS
AB Determining the kinematic history and mechanics of curved fold-and-thrust belts is fundamental to understanding the tectonic evolution of mountain systems. To better understand the development of a classic curved fold-and-thrust belt, we completed an integrated paleomagnetic and strain study of the Wyoming salient. Paleomagnetic data are reported here from 154 sites collected from red beds of the Triassic Ankareh Formation in the salient and nine sites collected from the relatively stable foreland. Red beds display three components with distinctly different magnetic behaviors: (1) a near-primary Triassic magnetization carried by hematite that is stable up to 680 degrees C (Tr component, 91 sites); (2) a Cretaceous chemical remagnetization carried partly by magnetite (K component, 32 sites); and (3) a recent viscous magnetization that is mostly removed by 350 degrees C. Site mean vectors for the Tr and K component.,, show a high degree of scatter from expected Triassic and Cretaceous reference directions, suggesting significant tilt and rotation subsequent to magnetization acquisition. Restoration of tilt and folding for individual site means results in well-clustered shallow and moderate inclinations for the Tr and K components, respectively, and in variable declinations related to systematic vertical-axis rotations. Statistical analysis of declinations for both components indicates that similar to 75% of present-day salient curvature resulted from secondary rotation, and similar to 25% of primary curvature was likely related to sedimentary basin architecture. Analysis of individual thrust systems indicates a slightly greater component of rotation in more internal sheets (similar to 80%) compared to the frontal thrust sheets (similar to 65%), suggesting that rotations were concentrated near the leading edge of the propagating fold-and-thrust wedge, with only minor additional rotation of internal sheets. Transfer zones, oblique ramps, and more deformed overturned fold limbs display locally more complex patterns, which can be understood through careful structural analysis. When combined with internal strain data and regional structural relations, paleomagnetic data support a kinematic model of a progressive arc with curved thrust-slip paths and differential shortening that rotated early layer-parallel shortening fabrics and produced minor strike-parallel extension. This kinematic history likely reflects a combination of processes, including greater initial stratigraphic thickness and subsequent shortening and wedge propagation in the central part of the salient, presence of a weak basal detachment and fault-zone weakening that favored lower taper, and buttressing by Laramide foreland uplifts that formed along basement promontories at the north and south ends of the salient.
C1 [Weil, Arlo Brandon] Bryn Mawr Coll, Dept Geol, Bryn Mawr, PA 19010 USA.
[Yonkee, Adolph] Weber State Univ, Dept Geosci, Ogden, UT 84408 USA.
[Sussman, Aviva] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Weil, AB (reprint author), Bryn Mawr Coll, Dept Geol, Bryn Mawr, PA 19010 USA.
EM aweil@brynmawr.edu
RI Weil, Arlo/B-8522-2008
FU National Science Foundation (NSF) [EAR-0409103, EAR-0408653]
FX This work would not have been possible Without the financial support of
National Science Foundation (NSF) grants EAR-0409103 and EAR-0408653.
Many Students from Bryn Mawr College, Haverford College, and Weber State
University participated in field and laboratory work, which greatly
enhanced the quality of this study. These students included Tyler Cluff,
Andrea Cutruzzula, Steve Fellows. Melissa Lindholm, Anna Mazzariello,
Sarah McCullough, Evan Pugh. Zoe Ruge, Cameron Thompson. Matt Tomich,
Kira Tushman, and Virginia Walker. Insightful reviews by Eric Tohver.
Steve Marshak, and Ben van der Pluijm, and comments by Lucian Platt,
significantly improved this paper.
NR 104
TC 33
Z9 34
U1 0
U2 13
PU GEOLOGICAL SOC AMER, INC
PI BOULDER
PA PO BOX 9140, BOULDER, CO 80301-9140 USA
SN 0016-7606
J9 GEOL SOC AM BULL
JI Geol. Soc. Am. Bull.
PD JAN-FEB
PY 2010
VL 122
IS 1-2
BP 3
EP 23
DI 10.1130/B26483.1
PG 21
WC Geosciences, Multidisciplinary
SC Geology
GA 539YI
UT WOS:000273295200001
ER
PT J
AU Gao, WM
Gentry, TJ
Mehlhorn, TL
Carroll, SL
Jardine, PM
Zhou, JZ
AF Gao, Weimin
Gentry, Terry J.
Mehlhorn, Tonia L.
Carroll, Susan L.
Jardine, Philip M.
Zhou, Jizhong
TI Characterization of Co(III) EDTA-Reducing Bacteria in Metal- and
Radionuclide-Contaminated Groundwater
SO GEOMICROBIOLOGY JOURNAL
LA English
DT Article
DE bioremediation; dissimilatory metal reduction; groundwater; metal
reduction; molecular ecology
ID FRACTURED SHALE BEDROCK; ANAEROBIC RESPIRATION; MICROBIAL COMMUNITIES;
SUBSURFACE SEDIMENTS; REDUCTION; FE(III); URANIUM; COBALT; KINETICS;
STRAINS
AB The Waste Area Grouping 5 (WAG5) site at Oak Ridge National Laboratory has a potential to be a field site for evaluating the effectiveness of various bioremediation approaches and strategies. The site has been well studied in terms of its geological and geochemical properties over the past decade. However, despite the importance of microorganisms in bioremediation processes, the microbiological populations at the WAG5 site and their potential in bioremediation have not been similarly evaluated. In this study, we initiated research to characterize the microbial populations in WAG5 groundwater. Approximately 100 isolates from WAG5 groundwater were isolated and selected based on colony morphology. Fifty-five unique isolates were identified by BOX-PCR and subjected to further characterization. 16S rRNA sequences indicated that these isolates belong to seventeen bacterial genera including Alcaligenes (1 isolate), Aquamonas (1), Aquaspirillum (1), Bacillus (10), Brevundimonas (5), Caulobacter (7), Dechloromonas (2), Janibacter (1), Janthinobacterium (2), Lactobacillus (1), Paenibacillus (4), Pseudomonas (9), Rhodoferax (1), Sphingomonas (1), Stenotrophomonas (6), Variovorax (2), and Zoogloea (1). Metal respiration assays identified several isolates, which phylogenically belong or are close to Caulobacter, Stenotrophomonas, Bacillus, Paenibacillus and Pseudomonas, capable of reducing Co(III)EDTA- to Co(II)EDTA2 - using the defined M1 medium under anaerobic conditions. In addition, using WAG5 groundwater directly as the inoculants, we found that organisms associated with WAG5 groundwater can reduce both Fe(III) and Co(III) under anaerobic conditions. Further assays were then performed to determine the optimal conditions for Co(III) reduction. These assays indicated that addition of various electron donors including ethanol, lactate, methanol, pyruvate, and acetate resulted in metal reduction. These experiments will provide useful background information for future bioremediation field experiments at the WAG5 site.
C1 [Gao, Weimin] Arizona State Univ, Biodesign Inst, Ctr Ecogeon, Tempe, AZ 85287 USA.
[Gentry, Terry J.] Texas A&M Univ, Dept Soil & Crop Sci, College Stn, TX 77843 USA.
[Mehlhorn, Tonia L.; Carroll, Susan L.; Jardine, Philip M.] Oak Ridge Natl Lab, Dept Environm Sci, Oak Ridge, TN USA.
[Zhou, Jizhong] Univ Oklahoma, Inst Environm Genom, Norman, OK 73019 USA.
[Zhou, Jizhong] Univ Oklahoma, Dept Bot & Microbiol, Norman, OK 73019 USA.
RP Gao, WM (reprint author), Arizona State Univ, Biodesign Inst, Ctr Ecogeon, 1001 S McAllister Ave,POB 876501, Tempe, AZ 85287 USA.
EM weimin.gao.2@asu.edu
RI Gao, Weimin/J-1795-2014
OI Gao, Weimin/0000-0002-6758-9775
FU The United States Department of Energy; University of Tennessee-Battelle
LLC for the Department of Energy [DE-AC05-00OR22725]
FX We appreciate insightful comments and suggestions of anonymous reviewers
on the improvement of this manuscript. This research was supported by
The United States Department of Energy under the Laboratory Directed and
Research Program at ORNL. Oak Ridge National Laboratory is managed by
the University of Tennessee-Battelle LLC for the Department of Energy
under contract DE-AC05-00OR22725.
NR 32
TC 7
Z9 7
U1 3
U2 20
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0149-0451
J9 GEOMICROBIOL J
JI Geomicrobiol. J.
PY 2010
VL 27
IS 1
BP 93
EP 100
AR PII 918634260
DI 10.1080/01490450903408112
PG 8
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 545GZ
UT WOS:000273721800008
ER
PT J
AU Ohnuki, T
Kozai, N
Sakamoto, F
Ozaki, T
Nankawa, T
Suzuki, Y
Francis, AJ
AF Ohnuki, Toshihiko
Kozai, Naofumi
Sakamoto, Fuminori
Ozaki, Takuo
Nankawa, Takuya
Suzuki, Yoshinori
Francis, Arokiasamy J.
TI Association of Actinides with Microorganisms and Clay: Implications for
Radionuclide Migration from Waste-Repository Sites
SO GEOMICROBIOLOGY JOURNAL
LA English
DT Review
DE Actinides; microorganisms; migration; sorption; backfill material
ID KAOLINITE CLAY; URANIUM; SORPTION; PLUTONIUM; BACTERIA; ADSORPTION;
COLLOIDS; MONTMORILLONITE; ACCUMULATION; BENTONITE
AB We conducted a series of basic studies on the microbial accumulation of actinides to elucidate their migration behavior around backfill materials used in the geological disposal of radioactive wastes. We explored the interactions of U(VI) and Pu(VI) with Bacillus subtilis, kaolinite clay, and within a mixture of the two, directly analyzing their association with the bacterium in the mixture by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The accumulation of U by the mixture rose as the numbers of B. subtilis cells increased. Treating the kaolinite with potassium acetate (CH3COOK) removed approximately 80% of the associated uranium while only 65% was removed in the presence of B. subtilis. TEM-EDS analysis confirmed that most of the U taken from solution was associated with B. subtilis. XANES analyses revealed that the oxidation state of uranium associated with B. subtilis, kaolinite, and with the mixture containing both was U(VI). The amount of Pu sorbed by B. subtilis increased with time, but did not reach equilibrium in 48 h; in kaolinite alone, equilibrium was attained within 8 h. After 48 h, the oxidation state of Pu in the solutions exposed to B. subtilis and to the mixture had changed to Pu(V), whereas the oxidation state of the Pu associated with both was Pu(IV). In contrast, there was no change in the oxidation state of Pu in the solution nor on kaolinite after exposure to Pu(VI). SEM-EDS analysis indicated that most of the Pu in the mixture was associated with the bacteria. These results suggest that U(VI) and Pu(VI) preferentially are sorbed to bacterial cells in the presence of kaolinite clay, and that the mechanism of accumulation of U and Pu differs. U(VI) is sorbed directly to the bacterial cells, whereas Pu(VI) first is reduced to Pu(V) and then to Pu(IV), and the latter is associated with the cells. These results have important implications on the migrations of radionuclides around the repository sites of geological disposal. Microbial cells compete with clay colloids for radionuclides accumulation, and because of their higher affinity and larger size, the microbes accumulate radionuclides and migrate much slower than do the clay colloids. Additionally, biofilm coatings formed on the fractured rock surfaces also accumulate radionuclides, thereby retarding radionuclide migration.
C1 [Ohnuki, Toshihiko; Kozai, Naofumi; Sakamoto, Fuminori; Ozaki, Takuo; Nankawa, Takuya; Suzuki, Yoshinori] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan.
[Francis, Arokiasamy J.] Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA.
RP Ohnuki, T (reprint author), Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan.
EM ohnuki.toshihiko@jaea.go.jp
FU Ministry of Education, Culture, Sports, Science and Technology; Office
of Biological and Environmental Research, Office of Science, U.S.
Department of Energy [DE-AC0-298CH10886]
FX We thank Dr. Avril Woodhead, Brookhaven National Laboratory for
editorial help. This research was supported in part by a Grant-in-Aid
from the Ministry of Education, Culture, Sports, Science and Technology
to T. Ohnuki, and by the Environmental Remediation Sciences Program,
Office of Biological and Environmental Research, Office of Science, U.S.
Department of Energy under contract No. DE-AC0-298CH10886 to A.J.
Francis.
NR 37
TC 9
Z9 9
U1 11
U2 49
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0149-0451
J9 GEOMICROBIOL J
JI Geomicrobiol. J.
PY 2010
VL 27
IS 3
BP 225
EP 230
AR PII 922060221
DI 10.1080/01490450903456715
PG 6
WC Environmental Sciences; Geosciences, Multidisciplinary
SC Environmental Sciences & Ecology; Geology
GA 593UL
UT WOS:000277486500001
ER
PT B
AU Martin, HG
Veysey, J
Bonheyo, GT
Goldenfeld, N
Fouke, BW
AF Martin, Hector Garcia
Veysey, John
Bonheyo, George T.
Goldenfeld, Nigel
Fouke, Bruce W.
BE Barton, LL
Mandl, M
Loy, A
TI Statistical Evaluation of Bacterial 16S rRNA Gene Sequences in Relation
to Travertine Mineral Precipitation and Water Chemistry at Mammoth Hot
Springs, Yellowstone National Park, USA
SO GEOMICROBIOLOGY: MOLECULAR AND ENVIRONMENTAL PERSPECTIVE
LA English
DT Article; Book Chapter
ID DEPOSITIONAL FACIES; CYANOBACTERIA; POLYMERASE; FIDELITY
C1 [Bonheyo, George T.; Fouke, Bruce W.] Univ Illinois, Dept Geol, Urbana, IL 61801 USA.
[Martin, Hector Garcia; Veysey, John; Goldenfeld, Nigel] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Fouke, Bruce W.] Univ Illinois, Dept Microbiol, Urbana, IL 61801 USA.
[Goldenfeld, Nigel; Fouke, Bruce W.] Univ Illinois, Inst Genom Biol, Urbana, IL 61801 USA.
[Martin, Hector Garcia] Joint BioEnergy Inst, Emeryville, CA 94608 USA.
[Martin, Hector Garcia] Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94710 USA.
[Bonheyo, George T.] Marine Sci Lab, Pacific NW Lab, Sequim, WA 98382 USA.
RP Fouke, BW (reprint author), Univ Illinois, Dept Geol, 1301 W Green St, Urbana, IL 61801 USA.
EM hectorg@gmail.com; veysey@gmail.com; George.Bonheyo@pnl.gov;
nigel@uiuc.edu; fouke@illinois.edu
RI Garcia Martin, Hector/B-5357-2009
OI Garcia Martin, Hector/0000-0002-4556-9685
NR 18
TC 1
Z9 1
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-90-481-9203-8
PY 2010
BP 239
EP 249
DI 10.1007/978-90-481-9204-5_11
D2 10.1007/978-90-481-9204-5
PG 11
WC Microbiology
SC Microbiology
GA BQH04
UT WOS:000280965000011
ER
PT J
AU Long, P
Holland, M
Schultheiss, P
Riedel, M
Weinberger, J
Trehu, A
Schaef, H
AF Long, Philip
Holland, Melanie
Schultheiss, Peter
Riedel, Michael
Weinberger, Jill
Trehu, Anne
Schaef, Herbert
BE Riedel, M
Willoughby, EC
Chopra, S
TI Infrared Imaging of Gas-hydrate-bearing Cores: State of the Art and
Future Prospects
SO GEOPHYSICAL CHARACTERIZATION OF GAS HYDRATES
SE Geophysical Developments Series
LA English
DT Article; Book Chapter
ID SEDIMENTS
AB Modern digital infrared (IR) thermal imaging of recovered sediment cores is a technical development that opens new scientific opportunities for studying gas-hydrate abundance and texture. Data derived from thermal imaging of gas hydrates provide an entirely new and independent proxy for gas-hydrate abundance in marine sediments. The information on gas-hydrate distribution at the core scale can be used to assess gas-hydrate resources and to constrain the processes resulting in formation of gas hydrate. IR imaging has also become an indispensable guide for sample collection of gas-hydrate and pore water samples. Future development of IR imaging techniques and analyses promises automated estimation of gas-hydrate abundance and characterization of textures immediately after acquiring IR scans of cores.
C1 [Long, Philip; Schaef, Herbert] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Holland, Melanie; Schultheiss, Peter] Geotek Ltd, Daventry, Northants, England.
[Riedel, Michael] Geol Survey Canada Pacific, Nat Resources Canada, Sidney, BC, Canada.
[Weinberger, Jill] Lamont Doherty Earth Observ, Borehole Res Grp, Palisades, NY USA.
[Trehu, Anne] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA.
RP Long, P (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM philip.long@pnl.gov; mriedel@nrcan.gc.ca
NR 16
TC 4
Z9 4
U1 0
U2 0
PU SOC EXPLORATION GEOPHYSICISTS
PI TULSA
PA PO BOX 702740, TULSA, OK 74170 USA
BN 978-1-56080-218-1
J9 GEOPHYS DEV SER
PY 2010
IS 14
BP 217
EP 232
DI 10.1190/1.9781560802197.ch14
D2 10.1190/1.9781560802197
PG 16
WC Geochemistry & Geophysics; Geology
SC Geochemistry & Geophysics; Geology
GA BC7TA
UT WOS:000355201100015
ER
PT B
AU Gusiakov, V
Abbott, DH
Bryant, EA
Masse, WB
Breger, D
AF Gusiakov, Viacheslav
Abbott, Dallas H.
Bryant, Edward A.
Masse, W. Bruce
Breger, Dee
BE Beer, T
TI Mega Tsunami of the World Oceans: Chevron Dune Formation, Micro-Ejecta,
and Rapid Climate Change as the Evidence of Recent Oceanic Bolide
Impacts
SO GEOPHYSICAL HAZARDS: MINIMIZING RISK, MAXIMIZING AWARENESS
SE International Year of Planet Earth
LA English
DT Article; Book Chapter
DE Oceanic impact; Comets; Tectonic tsunamis
ID NEW-SOUTH-WALES; LAKE CARPENTARIA; SEA-LEVEL; EL-NINO; AUSTRALIA;
DEPOSITS; GULF; MADAGASCAR; EVOLUTION; ASTEROIDS
AB This paper deals with the physical and environmental effects resulting from oceanic impacts by sizable comets, and the rates and risks associated with such cosmic impacts. Specifically, we investigate two sets of probable oceanic impact events that occurred within the last 5,000 years, one in the Indian Ocean about 2800 BC, and the other in the Gulf of Carpentaria (Australia) about AD 536. If validated, they would be the most energetic natural catastrophes occurring during the middle-to-late Holocene with large-scale environmental and historical human effects and consequences. The physical evidence for these two impacts consists of several sets of data: (1) remarkable depositional traces of coastal flooding in dunes (chevron dunes) found in southern Madagascar and along the coast of the Gulf of Carpentaria, (2) the presence of crater candidates (29-km Burckle crater about 1,500 km southeast of Madagascar which dates to within the last 6,000 years and 18-km Kanmare and 12-km Tabban craters with an estimated age of AD 572 +/- 86 in the southeast corner of the Gulf of Carpentaria), and (3) the presence of quench textured magnetite spherules and nearly pure carbon spherules, teardrop-shaped tektites with trails of ablation, and vitreous material found by cutting-edge laboratory analytical techniques in the upper-most layer of core samples close to the crater candidates.
Although some propose a wind-blown origin for V-shaped chevron dunes that are widely distributed around the coastlines of the Indian Ocean and in the Gulf of Carpentaria, we have evidence in favor of their mega tsunami formation. In southern Madagascar we have documented evidence for tsunami wave run-up reaching 205 m above sea-level and penetrating up to 45 km. inland along the strike of the chevron axis. Subtly the orientation of the dunes is not aligned to the prevailing wind direction, but to the path of refracted mega-tsunami originating from Burckle impact crater.
The results of our study show that substantive oceanic comet impacts not only have occurred more recently than modeled by astrophysicists, but also that they have profoundly affected Earth's natural systems, climate, and human societies. If validated, they could potentially lead to a major paradigm shift in environmental science by recognizing the role of oceanic impacts in major climate downturns during the middle-to-late Holocene that have been well documented already by different techniques (tree-ring anomalies, ice-, lake- and peat bog-cores).
C1 [Gusiakov, Viacheslav] ICMMG SD RAS, Tsunami Lab, Novosibirsk 630090, Russia.
[Abbott, Dallas H.] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA.
[Bryant, Edward A.] Univ Wollongong, Sch Geosci, Wollongong, NSW 2522, Australia.
[Masse, W. Bruce] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Breger, Dee] Drexel Univ, Centralized Res Facil, Philadelphia, PA 19104 USA.
RP Gusiakov, V (reprint author), ICMMG SD RAS, Tsunami Lab, Novosibirsk 630090, Russia.
EM gvk@sscc.ru
OI Abbott, Dallas/0000-0003-4713-6098
NR 71
TC 2
Z9 2
U1 1
U2 3
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-90-481-3235-5
J9 INT YEAR PLANET EART
PY 2010
BP 197
EP 227
DI 10.1007/978-90-481-3236-2_13
D2 10.1007/978-90-481-3236-2
PG 31
WC Geochemistry & Geophysics; Environmental Sciences; Geography, Physical;
Geosciences, Multidisciplinary
SC Geochemistry & Geophysics; Environmental Sciences & Ecology; Physical
Geography; Geology
GA BNS55
UT WOS:000275415300013
ER
PT J
AU Nassar, R
Jones, DBA
Suntharalingam, P
Chen, JM
Andres, RJ
Wecht, KJ
Yantosca, RM
Kulawik, SS
Bowman, KW
Worden, JR
Machida, T
Matsueda, H
AF Nassar, R.
Jones, D. B. A.
Suntharalingam, P.
Chen, J. M.
Andres, R. J.
Wecht, K. J.
Yantosca, R. M.
Kulawik, S. S.
Bowman, K. W.
Worden, J. R.
Machida, T.
Matsueda, H.
TI Modeling global atmospheric CO2 with improved emission inventories and
CO2 production from the oxidation of other carbon species
SO GEOSCIENTIFIC MODEL DEVELOPMENT
LA English
DT Article
ID REGIONAL-SCALE FLUXES; LATITUDINAL DISTRIBUTION; SATELLITE-OBSERVATIONS;
ECOSYSTEM PRODUCTION; UPDATED EMISSIONS; SOURCE INVERSIONS; FUEL
CONSUMPTION; HIGH-RESOLUTION; DIOXIDE; SURFACE
AB The use of global three-dimensional (3-D) models with satellite observations of CO2 in inverse modeling studies is an area of growing importance for understanding Earth's carbon cycle. Here we use the GEOS-Chem model (version 8-02-01) CO2 mode with multiple modifications in order to assess their impact on CO2 forward simulations. Modifications include CO2 surface emissions from shipping (similar to 0.19 Pg C yr(-1)), 3-D spatially-distributed emissions from aviation (similar to 0.16 Pg C yr-1), and 3-D chemical production of CO2 (similar to 1.05 Pg C yr-1). Although CO2 chemical production from the oxidation of CO, CH4 and other carbon gases is recognized as an important contribution to global CO2, it is typically accounted for by conversion from its precursors at the surface rather than in the free troposphere. We base our model 3-D spatial distribution of CO2 chemical production on monthly-averaged loss rates of CO (a key precursor and intermediate in the oxidation of organic carbon) and apply an associated surface correction for inventories that have counted emissions of CO2 precursors as CO2. We also explore the benefit of assimilating satellite observations of CO into GEOS-Chem to obtain an observation-based estimate of the CO2 chemical source. The CO assimilation corrects for an underestimate of atmospheric CO abundances in the model, resulting in increases of as much as 24% in the chemical source during May June 2006, and increasing the global annual estimate of CO2 chemical production from 1.05 to 1.18 Pg C. Comparisons of model CO2 with measurements are carried out in order to investigate the spatial and temporal distributions that result when these new sources are added. Inclusion of CO2 emissions from shipping and aviation are shown to increase the global CO2 latitudinal gradient by just over 0.10 ppm (similar to 3%), while the inclusion of CO2 chemical production (and the surface correction) is shown to decrease the latitudinal gradient by about 0.40 ppm (similar to 10%) with a complex spatial structure generally resulting in decreased CO2 over land and increased CO2 over the oceans. Since these CO2 emissions are omitted or misrepresented in most inverse modeling work to date, their implementation in forward simulations should lead to improved inverse modeling estimates of terrestrial biospheric fluxes.
C1 [Nassar, R.; Chen, J. M.] Univ Toronto, Dept Geog, Toronto, ON M5S 2E5, Canada.
[Suntharalingam, P.] Univ E Anglia, Norwich NR4 7TJ, Norfolk, England.
[Andres, R. J.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Wecht, K. J.] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA.
[Yantosca, R. M.] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
[Kulawik, S. S.; Bowman, K. W.; Worden, J. R.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Machida, T.] Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan.
[Matsueda, H.] Meteorol Res Inst, Tsukuba, Ibaraki 3050052, Japan.
[Nassar, R.; Jones, D. B. A.] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.
RP Nassar, R (reprint author), Environm Canada, Div Climate Res, 4905 Dufferin St, Toronto, ON M3H 5T4, Canada.
EM ray.nassar@ec.gc.ca
RI ANDRES, ROBERT/B-9786-2012; Yantosca, Robert/F-7920-2014; Jones,
Dylan/O-2475-2014; Chem, GEOS/C-5595-2014;
OI Yantosca, Robert/0000-0003-3781-1870; Jones, Dylan/0000-0002-1935-3725;
Nassar, Ray/0000-0001-6282-1611
FU Natural Sciences and Engineering Research Council (NSERC) of Canada
FX Work at the University of Toronto was funded by the Natural Sciences and
Engineering Research Council (NSERC) of Canada. Work at the Jet
Propulsion Laboratory California Institute of Technology was carried out
under contract to NASA. We thank all those who have contributed
measurements to GLOBALVIEW-CO2 and thank NOAA-ESRL for making
GLOBALVIEW as well as their direct measurement datasets publicly
available.
NR 96
TC 38
Z9 41
U1 2
U2 14
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1991-959X
EI 1991-9603
J9 GEOSCI MODEL DEV
JI Geosci. Model Dev.
PY 2010
VL 3
IS 2
BP 689
EP 716
DI 10.5194/gmd-3-689-2010
PG 28
WC Geosciences, Multidisciplinary
SC Geology
GA 703FZ
UT WOS:000285965100021
ER
PT B
AU Hodges, DG
Fogel, J
Dale, VH
Lannom, KO
Tharp, ML
AF Hodges, Donald G.
Fogel, Jonah
Dale, Virginia H.
Lannom, Karen O.
Tharp, M. Lynn
BE Gan, J
Grado, S
Munn, IA
TI ECONOMIC EFFECTS OF PROJECTED CLIMATE CHANGE ON OUTDOOR RECREATION IN
TENNESSEE
SO GLOBAL CHANGE AND FORESTRY: ECONOMIC AND POLICY IMPACTS AND RESPONSES
SE Climate Change and its Causes Effects and Prediction
LA English
DT Article; Book Chapter
DE Climate change; Outdoor recreation; Tourism climatic index
ID MODEL
AB Climate change projections from three General Circulation Models were used to adjust the temperature and precipitation in 2030 and 2080 in each of five ecological provinces in Tennessee to estimate the direct economic effects of the projected changes on recreation using the Tourism Climatic Index. The indirect effects on recreation were evaluated qualitatively, based on current demand for the unique values associated with current conditions. The results of the direct impact evaluation reveal that climate change will have variable effects on recreational activities in Tennessee. The magnitude and direction of the effects vary by the recreational activity involved, patterns of precipitation and temperature regimes, and specific location in Tennessee. Recreational activities such as rock climbing, winter activities independent of snow, and whitewater boating are likely to benefit from projected climate changes due to increased temperatures in the winter months. Summer-based activities such as lake recreation and camping are likely to decline with increasing seasonal temperatures. The indirect effects of climate change on recreation are likely to have a larger effect than the direct impacts of climatic variables.
C1 [Hodges, Donald G.] Univ Tennessee, Nat Resource Policy Ctr, Dept Forestry Fisheries & Wildlife, Knoxville, TN 37996 USA.
[Fogel, Jonah] Virginia Tech Univ, Blacksburg, VA 24061 USA.
[Dale, Virginia H.] Oak Ridge Natl Lab, Div Sci, Oak Ridge, TN 37831 USA.
[Tharp, M. Lynn] CompSci Consulting LLC, McRae, GA USA.
RP Hodges, DG (reprint author), Univ Tennessee, Nat Resource Policy Ctr, Dept Forestry Fisheries & Wildlife, 247 Ellington Plant Sci Bldg, Knoxville, TN 37996 USA.
EM dhodges2@utk.edu
OI Hodges, Donald/0000-0001-6751-0927
NR 22
TC 0
Z9 0
U1 0
U2 1
PU NOVA SCIENCE PUBLISHERS, INC
PI HAUPPAUGE
PA 400 OSER AVE, STE 1600, HAUPPAUGE, NY 11788-3635 USA
BN 978-1-60876-262-0
J9 CLIM CHANG CAUSE EFF
PY 2010
BP 17
EP 31
PG 15
WC Forestry
SC Forestry
GA BQO44
UT WOS:000281447700002
ER
PT J
AU McDowell, NG
Allen, CD
Marshall, L
AF McDowell, Nate G.
Allen, Craig D.
Marshall, Laura
TI Growth, carbon-isotope discrimination, and drought-associated mortality
across a Pinus ponderosa elevational transect
SO GLOBAL CHANGE BIOLOGY
LA English
DT Review
DE altitude; climate change; die-off; photosynthesis; stomatal conductance;
water availability
ID WATER-USE EFFICIENCY; CO2 TRANSFER CONDUCTANCE; WESTERN UNITED-STATES;
NORTHERN NEW-MEXICO; TREE-RINGS; CLIMATE-CHANGE; GAS-EXCHANGE;
METROSIDEROS-POLYMORPHA; STOMATAL CONDUCTANCE; ENVIRONMENTAL-STRESS
AB Drought- and insect-associated tree mortality at low-elevation ecotones is a widespread phenomenon but the underlying mechanisms are uncertain. Enhanced growth sensitivity to climate is widely observed among trees that die, indicating that a predisposing physiological mechanism(s) underlies tree mortality. We tested three, linked hypotheses regarding mortality using a ponderosa pine (Pinus ponderosa) elevation transect that experienced low-elevation mortality following prolonged drought. The hypotheses were: (1) mortality was associated with greater growth sensitivity to climate, (2) mortality was associated with greater sensitivity of gas exchange to climate, and (3) growth and gas exchange were correlated. Support for all three hypotheses would indicate that mortality results at least in part from gas exchange constraints. We assessed growth using basal area increment normalized by tree basal area [basal area increment (BAI)/basal area (BA)] to account for differences in tree size. Whole-crown gas exchange was indexed via estimates of the CO(2) partial pressure difference between leaf and atmosphere (p(a)-p(c)) derived from tree ring carbon isotope ratios (delta(13)C), corrected for temporal trends in atmospheric CO(2) and delta(13)C and elevation trends in pressure. Trees that survived the drought exhibited strong correlations among and between BAI, BAI/BA, p(a)-p(c), and climate. In contrast, trees that died exhibited greater growth sensitivity to climate than trees that survived, no sensitivity of p(a)-p(c) to climate, and a steep relationship between p(a)-p(c) and BAI/BA. The p(a)-p(c) results are consistent with predictions from a theoretical hydraulic model, suggesting trees that died had a limited buffer between mean water availability during their lifespan and water availability during drought - i.e., chronic water stress. It appears that chronic water stress predisposed low-elevation trees to mortality during drought via constrained gas exchange. Continued intensification of drought in mid-latitude regions may drive increased mortality and ecotone shifts in temperate forests and woodlands.
C1 [McDowell, Nate G.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Allen, Craig D.] US Geol Survey, Ft Collins Sci Ctr, Jemez Mt Field Stn, Los Alamos, NM 87544 USA.
[Marshall, Laura] Univ Arizona, Sch Nat Resources, Tucson, AZ 85721 USA.
RP McDowell, NG (reprint author), Los Alamos Natl Lab, MS J495, Los Alamos, NM 87544 USA.
EM mcdowell@lanl.gov
FU Western Mountain Initiative; DOE-Office of Science; Institute of
Geophysics and Planetary Physics at Los Alamos National Laboratory
FX We appreciate the field assistance of Kay Beeley (Bandelier National
Monument), Rebecca Oertel (USGS Jemez Mts. Field Station), and over 20
Student Conservation Association interns since 1991. Chris Baisan
(Laboratory of Tree Ring Research, University of Arizona) provided
invaluable cross-dating of the increment cores for this study and advice
on autocorrelation. We appreciate the careful mass spectrometry efforts
of the stable isotope laboratory in the Earth and Environmental Sciences
Division at LANL. We benefited from the detailed comments provided by
Jeff Amthor, Tom Kolb and John Marshall on an earlier draft of this
manuscript. This research was funded through the Western Mountain
Initiative of the USGS Global Change Program (C. D. A.), DOE-Office of
Science-Global Change Education Program (L. M.), DOE-Office of
Science-Program for Ecosystem Research (N.M.), and the Institute of
Geophysics and Planetary Physics at Los Alamos National Laboratory
(N.M.). All experiments conducted within this project comply with the
laws of the United States of America.
NR 122
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U2 88
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1354-1013
J9 GLOBAL CHANGE BIOL
JI Glob. Change Biol.
PD JAN
PY 2010
VL 16
IS 1
BP 399
EP 415
DI 10.1111/j.1365-2486.2009.01994.x
PG 17
WC Biodiversity Conservation; Ecology; Environmental Sciences
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 554EV
UT WOS:000274419200032
ER
PT J
AU Datta, S
Holmes, B
Park, JI
Chen, ZW
Dibble, DC
Hadi, M
Blanch, HW
Simmons, BA
Sapra, R
AF Datta, Supratim
Holmes, Bradley
Park, Joshua I.
Chen, Zhiwei
Dibble, Dean C.
Hadi, Masood
Blanch, Harvey W.
Simmons, Blake A.
Sapra, Rajat
TI Ionic liquid tolerant hyperthermophilic cellulases for biomass
pretreatment and hydrolysis
SO GREEN CHEMISTRY
LA English
DT Article
ID THERMOTOGA-MARITIMA; ENZYMATIC-HYDROLYSIS; CELLULOSE; DISSOLUTION;
BIOCATALYSIS; ENZYMES; ACID
AB One of the main barriers to the enzymatic hydrolysis of cellulose results from its highly crystalline structure. Pretreating biomass with ionic liquids (IL) increases enzyme accessibility and cellulose recovery through precipitation with an anti-solvent. For an industrially feasible pretreatment and hydrolysis process, it is necessary to develop cellulases that are stable and active in the presence of small amounts of ILs co-precipitated with recovered cellulose. However, a significant decrease in cellulase activity in the presence of trace amounts of ILs has been reported in the literature, necessitating extensive processing to remove residual ILs from the regenerated cellulose. Towards that end, we have investigated the stability of hyperthermophilic enzymes in the presence of the IL 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) and compared it to the industrial benchmark Trichoderma viride ( T. viride) cellulase. The endoglucanase from a hyperthermophilic bacterium, Thermatoga maritima, and a hyperthermophilic archaeon, Pyrococcus horikoshii, were over expressed in E. coli and purified to homogeneity. Under their optimum conditions, both hyperthermophilic enzymes showed significantly higher [C2mim][OAc] tolerance than T. viride cellulase. Using differential scanning calorimetry we determined the effect of [C2mim][OAc] on protein stability and our data indicates that higher concentrations of IL correlated with lowered protein stability. Both hyperthermophilic enzymes were active on [C2mim][OAc] pretreated Avicel and corn stover. Furthermore, these enzymes can be recovered with little loss in activity after exposure to 15% [C2mim][OAc] for 15 h. These results demonstrate the potential of using IL-tolerant extremophilic cellulases for hydrolysis of IL-pretreated lignocellulosic biomass, for biofuel production.
C1 [Datta, Supratim; Holmes, Bradley; Park, Joshua I.; Chen, Zhiwei; Dibble, Dean C.; Hadi, Masood; Blanch, Harvey W.; Simmons, Blake A.; Sapra, Rajat] Joint BioEnergy Inst, Deconstruct Div, Emeryville, CA USA.
[Datta, Supratim; Holmes, Bradley; Park, Joshua I.; Chen, Zhiwei; Dibble, Dean C.; Hadi, Masood; Simmons, Blake A.; Sapra, Rajat] Sandia Natl Labs, Biomass Sci & Convers Technol Dept, Livermore, CA USA.
[Blanch, Harvey W.] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
RP Datta, S (reprint author), Joint BioEnergy Inst, Deconstruct Div, 5885 Hollis St,4th Floor, Emeryville, CA USA.
EM rsapra@lbl.gov
RI Chen, Zhiwei/B-9727-2011;
OI Simmons, Blake/0000-0002-1332-1810
FU U.S. Department of Energy, Office of Science, Office of Biological and
Environmental Research [DE-AC02-05CH11231]
FX The DSC experiments were performed in the laboratory of Prof. Francis C.
Szoka, Jr., Department of Bioengineering and Therapeutic Sciences,
University of California, San Francisco, with the help of Dr Zhaohua
Huang and with the help of Dr Mara Bryan at Energy Biosciences
Institute, Berkeley. This work was part of the DOE Joint BioEnergy
Institute (http://www.jbei.org) supported by the U.S. Department of
Energy, Office of Science, Office of Biological and Environmental
Research, through contract DE-AC02-05CH11231 between Lawrence Berkeley
National Laboratory and the U. S. Department of Energy.
NR 33
TC 117
Z9 119
U1 2
U2 45
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
J9 GREEN CHEM
JI Green Chem.
PY 2010
VL 12
IS 2
BP 338
EP 345
DI 10.1039/b916564a
PG 8
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA 553WF
UT WOS:000274396800025
ER
PT J
AU Zhang, C
Wang, H
Malhotra, SV
Dodge, CJ
Francis, AJ
AF Zhang, C.
Wang, H.
Malhotra, S. V.
Dodge, C. J.
Francis, A. J.
TI Biodegradation of pyridinium-based ionic liquids by an axenic culture of
soil Corynebacteria
SO GREEN CHEMISTRY
LA English
DT Article
ID MICROBIAL-METABOLISM; LIQUID/LIQUID EXTRACTION; ANAEROBIC CONDITIONS;
METAL-IONS; TOXICITY; CATALYSIS; ENZYME; MICROORGANISMS; BIOCATALYSIS;
IMIDAZOLIUM
AB We investigated the biodegradation of ionic liquids N-ethylpyridinium tetrafluoroborate [EtPy](+)[BF(4)](-), N-ethylpyridinium trifluoroacetate [EtPy](+)[CF(3)COO](-), and 1-butyl-3-methylimidazolium hexafluorophosphate [BMIM](+)[PF(6)](-) by a soil bacterium isolated by an enrichment-culture technique. The bacterium identified as Corynebacterium sp. degraded the N-ethylpyridinium cation in the first two compounds when present as its sole carbon and nitrogen source without any obvious effects of the anion; however, [BMIM](+)[PF(6)](-) was not metabolized. We observed cleavage of the pyridinium ring and identified the resulting metabolites by ESI/MS/MS. We propose a degradation pathway.
C1 [Zhang, C.; Wang, H.; Malhotra, S. V.] New Jersey Inst Technol, Dept Chem & Environm Sci, Newark, NJ 07104 USA.
[Dodge, C. J.; Francis, A. J.] Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA.
RP Zhang, C (reprint author), Nankai Univ, Coll Environm Sci & Engn, Tianjin 300457, Peoples R China.
EM francis1@bnl.gov
FU Brookhaven National Laboratory; Laboratory Directed Research and
Development (LDRD); U.S. Department of Energy [DE-AC02-98CH10886]
FX This work was supported by Brookhaven National Laboratory, Laboratory
Directed Research and Development (LDRD), U.S. Department of Energy
under contract No. DE-AC02-98CH10886.
NR 38
TC 29
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U1 2
U2 38
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
J9 GREEN CHEM
JI Green Chem.
PY 2010
VL 12
IS 5
BP 851
EP 858
DI 10.1039/b924264c
PG 8
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA 594UD
UT WOS:000277563500018
ER
PT J
AU Wang, CM
Mahurin, SM
Luo, HM
Baker, GA
Li, HR
Dai, S
AF Wang, Congmin
Mahurin, Shannon M.
Luo, Huimin
Baker, Gary A.
Li, Haoran
Dai, Sheng
TI Reversible and robust CO2 capture by equimolar task-specific ionic
liquid-superbase mixtures
SO GREEN CHEMISTRY
LA English
DT Article
ID CARBON-DIOXIDE; TEMPERATURE; SOLUBILITY; ABSORPTION; SEPARATION; AMINE;
IMIDAZOLIUM; MEMBRANES; SOLVENTS; BIS(TRIFLUOROMETHYLSULFONYL)IMIDE
AB Integrated sorption systems consisting of 1 : 1 mixtures of an alcohol-functionalized ionic liquid and a superbase were found to be effective for CO2 capture under atmospheric pressure, eliminating the use of volatile n-alkanols or water. Conversely, by using the current approach, there is no longer a requirement for maintaining scrupulously dry conditions. The effect of ionic liquid structure, choice of superbase, their relative ratios, the sorption temperature, and the reaction time on the absorption and release of CO2 were investigated. Our results demonstrate that (i) this integrated ionic liquid-superbase system is capable of rapid and reversible capture of nearly one mole of CO2 per mole of superbase, (ii) the captured CO2 can be readily released by either mild heating or bubbling with an insert gas (N-2, Ar), and (iii) this novel CO2 chemisorption platform can be recycled with minimal loss of activity. This efficient and fully reversible catch-and-release process using non-volatile, task-specific ionic liquids provides an excellent alternative to current CO2 capture technologies, which are based largely around volatile alkanols or alkylamines. Furthermore, our integrated ionic liquid-superbase system can be used as a novel medium for supported liquid membranes, for which they demonstrate both good selectivity and permeability in model CO2/N-2 gas separations.
C1 [Wang, Congmin; Li, Haoran] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China.
[Wang, Congmin; Mahurin, Shannon M.; Baker, Gary A.; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Luo, Huimin] Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Wang, CM (reprint author), Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China.
EM Dais@ornl.gov
RI Wang, Congmin/I-7889-2013; Baker, Gary/H-9444-2016; Dai,
Sheng/K-8411-2015
OI Baker, Gary/0000-0002-3052-7730; Dai, Sheng/0000-0002-8046-3931
FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences, U.S. Department of Energy; National Natural
Science Foundation of China [20704035, 20773109]
FX This work was supported by the Division of Chemical Sciences,
Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S.
Department of Energy. The authors thank Dr Je Seung Lee for his kind
assistance with CO2 sorption measurements. C. M. W. also
gratefully acknowledges the support of the National Natural Science
Foundation of China (nos. 20704035 and 20773109).
NR 55
TC 94
Z9 100
U1 8
U2 125
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
J9 GREEN CHEM
JI Green Chem.
PY 2010
VL 12
IS 5
BP 870
EP 874
DI 10.1039/b927514b
PG 5
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA 594UD
UT WOS:000277563500021
ER
PT J
AU Wang, CM
Luo, HM
Luo, XY
Li, HR
Dai, S
AF Wang, Congmin
Luo, Huimin
Luo, Xiaoyan
Li, Haoran
Dai, Sheng
TI Equimolar CO2 capture by imidazolium-based ionic liquids and superbase
systems
SO GREEN CHEMISTRY
LA English
DT Article
ID N-HETEROCYCLIC CARBENES; ROOM-TEMPERATURE; CARBON-DIOXIDE; ABSORPTION;
SEPARATION; CARBOXYLATION; SOLUBILITY; STABILITY; MEMBRANES; AMIDINES
AB Imidazolium-based ionic liquids continue to attract interest in many areas of chemistry because of their low melting points, relatively low viscosities, ease of synthesis, and good stabilities against oxidative and reductive conditions. However, they are not totally inert under many conditions due to the intrinsic acidity of hydrogen at the C-2 position in the imidazolium cation. In this work, this intrinsic acidity was exploited in combination with an organic superbase for the capture of CO2 under atmospheric pressure. During the absorption of CO2, the imidazolium-based ionic liquid containing an equimolar superbase reacted with CO2 to form a liquid carboxylate salt so that the equimolar capture of CO2 with respect to the base was achieved. The effects of ionic liquid structures, types of organic superbases, absorption times, and reaction temperatures on the capture of CO2 were investigated. Our results show that this integrated ionic liquid-superbase system is capable of rapid and reversible capture of about 1 mol CO2 per mole of ionic liquid. Furthermore, the captured CO2 can be readily released by either heating or bubbling N-2, and recycled with little loss of its capture capability. This efficient and reversible catch-and-release process using the weak acidity of the C-2 proton in nonvolatile imidazolium-based ionic liquids provides a good alternative to the current CO2 capture methods that use volatile alkanols, amines, or water.
C1 [Wang, Congmin; Luo, Xiaoyan; Li, Haoran] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China.
[Wang, Congmin; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Luo, Huimin] Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Wang, CM (reprint author), Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China.
EM dais@ornl.gov
RI Wang, Congmin/I-7889-2013; Dai, Sheng/K-8411-2015
OI Dai, Sheng/0000-0002-8046-3931
FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of
Basic Energy Sciences, U.S. Department of Energy; National Natural
Science Foundation of China [20704035, 20773109]
FX This work was supported by the Division of Chemical Sciences,
Geosciences, and Biosciences, Office of Basic Energy Sciences, U.S.
Department of Energy. C.M.W. also gratefully acknowledges the support of
the National Natural Science Foundation of China (nos. 20704035 and
20773109).
NR 66
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PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1463-9262
J9 GREEN CHEM
JI Green Chem.
PY 2010
VL 12
IS 11
BP 2019
EP 2023
DI 10.1039/c0gc00070a
PG 5
WC Chemistry, Multidisciplinary; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
SC Chemistry; Science & Technology - Other Topics
GA 676RZ
UT WOS:000283936800021
ER
PT S
AU Estrada, J
Alvarez, R
Abbott, T
Annis, J
Bonati, M
Buckley-Geer, E
Campa, J
Cease, H
Chappa, S
Depoy, D
Derylo, G
Diehl, HT
Flaugher, B
Hao, J
Holland, S
Huffman, D
Karliner, I
Kubik, D
Kuhlmann, S
Kuk, K
Lin, H
Roe, N
Scarpine, V
Schmidt, R
Schultz, K
Shaw, T
Simaitis, V
Spinka, H
Stuermer, W
Tucker, D
Walker, A
Wester, W
AF Estrada, J.
Alvarez, R.
Abbott, T.
Annis, J.
Bonati, M.
Buckley-Geer, E.
Campa, J.
Cease, H.
Chappa, S.
Depoy, D.
Derylo, G.
Diehl, H. T.
Flaugher, B.
Hao, J.
Holland, S.
Huffman, D.
Karliner, I.
Kubik, D.
Kuhlmann, S.
Kuk, K.
Lin, H.
Roe, N.
Scarpine, V.
Schmidt, R.
Schultz, K.
Shaw, T.
Simaitis, V.
Spinka, H.
Stuermer, W.
Tucker, D.
Walker, A.
Wester, W.
CA Dark Energy Survey Collaboration
BE McLean, IS
Ramsay, SK
Takami, H
TI Focal Plane Detectors for Dark Energy Camera (DECam)
SO GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-based and Airborne Instrumentation for Astronomy
III
CY JUN 27-JUL 02, 2010
CL San Diego, CA
SP SPIE
AB The Dark Energy Camera is an wide field imager currently under construction for the Dark Energy Survey. This instrument will use fully depleted 250 mu m thick CCD detectors selected for their higher quantum efficiency in the near infrared with respect to thinner devices. The detectors were developed by LBNL using high resistivity Si substrate. The full set of scientific detectors needed for DECam has now been fabricated, packaged and tested. We present here the results of the testing and characterization for these devices and compare these results with the technical requirements for the Dark Energy Survey.
C1 [Estrada, J.; Annis, J.; Buckley-Geer, E.; Cease, H.; Chappa, S.; Derylo, G.; Diehl, H. T.; Flaugher, B.; Hao, J.; Huffman, D.; Kubik, D.; Kuk, K.; Lin, H.; Scarpine, V.; Schultz, K.; Shaw, T.; Stuermer, W.; Tucker, D.; Wester, W.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Estrada, J (reprint author), Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RI Hao, Jiangang/G-3954-2011; Holland, Stephen/H-7890-2013; De Vicente,
Juan/H-3242-2015;
OI De Vicente, Juan/0000-0001-8318-6813; Tucker,
Douglas/0000-0001-7211-5729; Hao, Jiangang/0000-0003-0502-7571
NR 23
TC 11
Z9 11
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-225-9
J9 PROC SPIE
PY 2010
VL 7735
AR 77351R
DI 10.1117/12.857651
PG 11
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BSU66
UT WOS:000285832400060
ER
PT S
AU Flaugher, BL
Abbott, TMC
Annis, J
Antonik, ML
Bailey, J
Ballester, O
Bernstein, JP
Bernstein, R
Bonati, M
Bremer, G
Briones, J
Brooks, D
Buckley-Geer, EJ
Campa, J
Cardiel-Sas, L
Castander, F
Castilla, J
Cease, H
Chappa, S
Chi, EC
da Costa, L
Depoy, DL
Derylo, G
de Vicente, J
Diehl, HT
Doel, P
Estrada, J
Eiting, J
Elliott, A
Finley, D
Frieman, J
Gaztanaga, E
Gerdes, D
Gladders, M
Guarino, V
Gutierrez, G
Grudzinski, J
Hanlon, B
Hao, JG
Holland, S
Honscheid, K
Huffman, D
Jackson, C
Karliner, I
Kau, DW
Kent, S
Krempetz, K
Krider, J
Kozlovsky, M
Kubik, D
Kuehn, KW
Kuhlmann, SE
Kuk, K
Lahav, O
Lewis, P
Lin, HA
Lorenzon, W
Marshall, S
Martinez, G
McKay, T
Merritt, W
Meyer, M
Miquel, R
Morgan, J
Moore, P
Moore, T
Nord, B
Ogando, R
Olsen, J
Peoples, J
Plazas, A
Roe, N
Roodman, A
Rossetto, B
Sanchez, E
Scarpine, V
Schalk, T
Schindler, R
Schmidt, R
Schmitt, R
Schubnell, M
Schultz, K
Selen, M
Serrano, S
Shaw, T
Simaitis, V
Slaughter, J
Smith, RC
Spinka, H
Stefanik, A
Stuermer, W
Sypniewski, A
Talaga, R
Tarle, G
Thaler, J
Tucker, D
Walker, AR
Weaverdyck, C
Wester, W
Woods, RJ
Worswick, S
Zhao, A
AF Flaugher, Brenna L.
Abbott, Timothy M. C.
Annis, Jim
Antonik, Michelle L.
Bailey, Jim
Ballester, Otger
Bernstein, Joseph P.
Bernstein, Rebbeca
Bonati, Marco
Bremer, Gale
Briones, Jorge
Brooks, David
Buckley-Geer, Elizabeth J.
Campa, Juila
Cardiel-Sas, Laia
Castander, Franciso
Castilla, Javier
Cease, Herman
Chappa, Steve
Chi, Edward C.
da Costa, Luis
DePoy, Darren L.
Derylo, Gregory
de Vicente, Juan
Diehl, H. Thomas
Doel, Peter
Estrada, Juan
Eiting, Jacob
Elliott, Anne
Finley, David
Frieman, Josh
Gaztanaga, Enrique
Gerdes, David
Gladders, Mike
Guarino, V.
Gutierrez, G.
Grudzinski, Jim
Hanlon, Bill
Hao, Jiangang
Holland, Steve
Honscheid, Klaus
Huffman, Dave
Jackson, Cheryl
Karliner, Inga
Kau, Daekwang
Kent, Steve
Krempetz, Kurt
Krider, John
Kozlovsky, Mark
Kubik, Donna
Kuehn, Kyler W.
Kuhlmann, Stephen E.
Kuk, Kevin
Lahav, Ofer
Lewis, Peter
Lin, Huan
Lorenzon, Wolfgang
Marshall, Stuart
Martinez, Gustavo
McKay, Timothy
Merritt, Wyatt
Meyer, Mark
Miquel, Ramon
Morgan, Jim
Moore, Peter
Moore, Todd
Nord, Brian
Ogando, R.
Olsen, Jamieson
Peoples, John
Plazas, Andreas
Roe, Natalie
Roodman, Aaron
Rossetto, B.
Sanchez, E.
Scarpine, Vic
Schalk, Terry
Schindler, Rafe
Schmidt, Ricardo
Schmitt, Richard
Schubnell, Mike
Schultz, Kenneth
Selen, M.
Serrano, S.
Shaw, Terri
Simaitis, Vaidis
Slaughter, Jean
Smith, R. Christopher
Spinka, Hal
Stefanik, Andy
Stuermer, Walter
Sypniewski, Adam
Talaga, Rick
Tarle, Greg
Thaler, Jon
Tucker, Doug
Walker, Alistair R.
Weaverdyck, Curtis
Wester, William
Woods, Robert J.
Worswick, Sue
Zhao, Allen
BE McLean, IS
Ramsay, SK
Takami, H
TI Status of the Dark Energy Survey Camera (DECam) Project
SO GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-based and Airborne Instrumentation for Astronomy
III
CY JUN 27-JUL 02, 2010
CL San Diego, CA
SP SPIE
DE Dark Energy; CCD; camera; survey; Blanco; CTIO
AB The Dark Energy Survey Collaboration is building the Dark Energy Camera (DECam), a 3 square degree, 520 Megapixel CCD camera which will be mounted on the Blanco 4-meter telescope at CTIO. DECam will be used to perform the 5000 sq. deg. Dark Energy Survey with 30% of the telescope time over a 5 year period. During the remainder of the time, and after the survey, DECam will be available as a community instrument. Construction of DECam is well underway. Integration and testing of the major system components has already begun at Fermilab and the collaborating institutions.
C1 [Flaugher, Brenna L.; Annis, Jim; Buckley-Geer, Elizabeth J.; Cease, Herman; Chappa, Steve; Chi, Edward C.; Derylo, Gregory; Diehl, H. Thomas; Estrada, Juan; Finley, David; Frieman, Josh; Gutierrez, G.; Hao, Jiangang; Huffman, Dave; Jackson, Cheryl; Kent, Steve; Krempetz, Kurt; Krider, John; Kozlovsky, Mark; Kubik, Donna; Kuk, Kevin; Lin, Huan; Merritt, Wyatt; Olsen, Jamieson; Peoples, John; Scarpine, Vic; Schmitt, Richard; Schultz, Kenneth; Shaw, Terri; Slaughter, Jean; Stefanik, Andy; Stuermer, Walter; Tucker, Doug; Wester, William; Woods, Robert J.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Flaugher, BL (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM Brenna@fnal.gov
RI Hao, Jiangang/G-3954-2011; Ogando, Ricardo/A-1747-2010; De Vicente,
Juan/H-3242-2015; Sanchez, Eusebio/H-5228-2015; Gaztanaga,
Enrique/L-4894-2014; Zhao, Huyue /C-3088-2013; McKay,
Timothy/C-1501-2009; Holland, Stephen/H-7890-2013; Martinez Botella,
Gustavo/K-8834-2014;
OI Ogando, Ricardo/0000-0003-2120-1154; De Vicente,
Juan/0000-0001-8318-6813; Sanchez, Eusebio/0000-0002-9646-8198;
Gaztanaga, Enrique/0000-0001-9632-0815; Tucker,
Douglas/0000-0001-7211-5729; McKay, Timothy/0000-0001-9036-6150;
Martinez Botella, Gustavo/0000-0002-1061-8520; Hao,
Jiangang/0000-0003-0502-7571
NR 2
TC 8
Z9 8
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-225-9
J9 PROC SPIE
PY 2010
VL 7735
AR 77350D
DI 10.1117/12.856609
PG 14
WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics
GA BSU66
UT WOS:000285832400012
ER
PT S
AU Ackermann, MR
McGraw, JT
MacFarlane, MJ
Williams, T
Zimmer, P
Gerstle, W
Roybal, F
AF Ackermann, Mark R.
McGraw, John T.
MacFarlane, Malcolm J.
Williams, Tom
Zimmer, Peter
Gerstle, Walter
Roybal, Francisco
BE Stepp, LM
Gilmozzi, R
Hall, HJ
TI Optical Design of the CCD/Transit Instrument with Innovative
Instrumentation (CTI-II) Telescope
SO GROUND-BASED AND AIRBORNE TELESCOPES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-Based and Airborne Telescopes III
CY JUN 27-JUL 02, 2010
CL San Diego, CA
SP SPIE
AB We describe a 1p8m f/6 Cassegrain optical system that creates a 1.42 degrees FOV with near diffraction limited images from 400nm to 1100nm with full-field distortion less than 0.01%. The astronomical application for this optical system is the CCD/Transit Instrument with Innovative Instrumentation (CTI-II), designed to produce a highly precise photometric and astrometric survey of a complete strip of sky in the northern hemisphere. We describe the scientific observation program and supporting optical design for the telescope. The all-spherical, five lens field corrector represents a very capable optical system that works well with many other astronomical telescopes such as SDSS, Pan-STARRS, SkyMapper, ESO's VST, the WIYN ODI, and the MMT WFC. In many cases, using a five lens corrector exceeded the optical performance of the original published system designs. Conversely, these and other optical concepts compromised the performance of the CTI-II design. The CTI-II design is similar to many other wide-field telescope and imaging camera designs, thus the design is of potential general use in astronomy.
C1 [Ackermann, Mark R.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Ackermann, MR (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
NR 25
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-223-5
J9 PROC SPIE
PY 2010
VL 7733
AR 773311
DI 10.1117/12.856066
PG 20
WC Instruments & Instrumentation; Optics
SC Instruments & Instrumentation; Optics
GA BSQ90
UT WOS:000285506700030
ER
PT S
AU Ackermann, MR
McGraw, JT
Zimmer, PC
AF Ackermann, Mark R.
McGraw, John T.
Zimmer, Peter C.
BE Stepp, LM
Gilmozzi, R
Hall, HJ
TI Pancake ELT - a practical design for an extremely large telescope
SO GROUND-BASED AND AIRBORNE TELESCOPES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-Based and Airborne Telescopes III
CY JUN 27-JUL 02, 2010
CL San Diego, CA
SP SPIE
ID SPHERICAL-ABERRATION CORRECTOR; OPTICAL DESIGN
AB In this paper we present optical designs for an entirely new approach to extremely large telescopes and telescopes with spherical primary mirrors. The key feature is a novel optical system referred to as the improved spherical aberration corrector (ISAC). This corrector works exceptionally well for post prime focus applications, as well as for Cassegrain and Couder/Schwarzschild-like optical systems with both spherical primary and spherical secondary mirrors. The Couder/Schwarzschild configuration also adapts to a pancake configuration where the telescope is physically shorter than its aperture.
C1 [Ackermann, Mark R.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Ackermann, MR (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
NR 16
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-223-5
J9 PROC SPIE
PY 2010
VL 7733
AR 773320
DI 10.1117/12.857062
PG 19
WC Instruments & Instrumentation; Optics
SC Instruments & Instrumentation; Optics
GA BSQ90
UT WOS:000285506700061
ER
PT S
AU Bauman, BJ
Bowden, G
Ku, J
Nordby, M
Olivier, S
Riot, V
Rasmussen, A
Seppala, L
Xiao, H
Nurita, N
Gilmore, D
Kahn, S
AF Bauman, Brian J.
Bowden, Gordon
Ku, John
Nordby, Martin
Olivier, Scot
Riot, Vincent
Rasmussen, Andrew
Seppala, Lynn
Xiao, Hong
Nurita, Nadine
Gilmore, David
Kahn, Steven
BE Stepp, LM
Gilmozzi, R
Hall, HJ
TI Update and image quality error budget for the LSST camera optical design
SO GROUND-BASED AND AIRBORNE TELESCOPES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Ground-Based and Airborne Telescopes III
CY JUN 27-JUL 02, 2010
CL San Diego, CA
SP SPIE
DE Large Synoptic Survey Telescope; LSST; error budget; optical design;
Gaussian quadrature
AB The Large Synoptic Survey Telescope (LSST) uses a novel, three-mirror, modified Paul-Baker design, with an 8.4-meter primary mirror, a 3.4-m secondary, and a 5.0-m tertiary feeding a refractive camera design with 3 lenses (0.69-1.55m) and a set of broadband filters/corrector lenses. Performance is excellent over a 9.6 square degree field and ultraviolet to near infrared wavelengths.
We describe the image quality error budget analysis methodology which includes effects from optical and optomechanical considerations such as index inhomogeneity, fabrication and null-testing error, temperature gradients, gravity, pressure, stress, birefringence, and vibration.
C1 [Bauman, Brian J.; Olivier, Scot; Riot, Vincent; Seppala, Lynn] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Bauman, BJ (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,M-S L-210, Livermore, CA 94550 USA.
EM bauman3@llnl.gov
NR 8
TC 1
Z9 1
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-223-5
J9 PROC SPIE
PY 2010
VL 7733
AR 77332W
DI 10.1117/12.857682
PG 11
WC Instruments & Instrumentation; Optics
SC Instruments & Instrumentation; Optics
GA BSQ90
UT WOS:000285506700089
ER
PT J
AU Fritz, BG
Mackley, RD
AF Fritz, Brad G.
Mackley, Rob D.
TI A Wet/Wet Differential Pressure Sensor for Measuring Vertical Hydraulic
Gradient
SO GROUND WATER
LA English
DT Article
ID INSTALLING PIEZOMETERS; WATER EXCHANGE; HYPORHEIC ZONE; SEDIMENTS;
RIVER; GROUNDWATER; STREAM; DISCHARGE; SEEPAGE; CONDUCTIVITY
AB Vertical hydraulic gradient is commonly measured in rivers, lakes, and streams for studies of groundwater-surface water interaction. While a number of methods with subtle differences have been applied, these methods can generally be separated into two categories; measuring surface water elevation and pressure in the subsurface separately or making direct measurements of the head difference with a manometer. Making separate head measurements allows for the use of electronic pressure sensors, providing large datasets that are particularly useful when the vertical hydraulic gradient fluctuates over time. On the other hand, using a manometer-based method provides an easier and more rapid measurement with a simpler computation to calculate the vertical hydraulic gradient. In this study, we evaluated a wet/wet differential pressure sensor for use in measuring vertical hydraulic gradient. This approach combines the advantage of high-temporal frequency measurements obtained with instrumented piezometers with the simplicity and reduced potential for human-induced error obtained with a manometer board method. Our results showed that the wet/wet differential pressure sensor provided results comparable to more traditional methods, making it an acceptable method for future use.
C1 [Fritz, Brad G.; Mackley, Rob D.] Pacific NW Natl Lab, Richland, WA 99354 USA.
RP Fritz, BG (reprint author), Pacific NW Natl Lab, 902 Battelle Blvd, Richland, WA 99354 USA.
EM Bradley.Fritz@pnl.gov
NR 24
TC 5
Z9 5
U1 0
U2 10
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0017-467X
J9 GROUND WATER
JI Ground Water
PD JAN-FEB
PY 2010
VL 48
IS 1
BP 117
EP 121
DI 10.1111/j.1745-6584.2009.00609.x
PG 5
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 536SX
UT WOS:000273065200020
PM 19664046
ER
PT J
AU Cohen, D
Person, M
Wang, P
Gable, CW
Hutchinson, D
Marksamer, A
Dugan, B
Kooi, H
Groen, K
Lizarralde, D
Evans, RL
Day-Lewis, FD
Lane, JW
AF Cohen, Denis
Person, Mark
Wang, Peng
Gable, Carl W.
Hutchinson, Deborah
Marksamer, Andee
Dugan, Brandon
Kooi, Henk
Groen, Koos
Lizarralde, Daniel
Evans, Robert L.
Day-Lewis, Frederick D.
Lane, John W., Jr.
TI Origin and Extent of Fresh Paleowaters on the Atlantic Continental
Shelf, USA
SO GROUND WATER
LA English
DT Article
ID SUBMARINE GROUNDWATER DISCHARGE; LAURENTIDE ICE-SHEET; OFFSHORE
NEW-JERSEY; NANTUCKET-ISLAND; NEW-YORK; UNITED-STATES; LONG-ISLAND;
FLUID-FLOW; MASSACHUSETTS; SEA
AB While the existence of relatively fresh groundwater sequestered within permeable, porous sediments beneath the Atlantic continental shelf of North and South America has been known for some time, these waters have never been assessed as a potential resource. This fresh water was likely emplaced during Pleistocene sea-level low stands when the shelf was exposed to meteoric recharge and by elevated recharge in areas overrun by the Laurentide ice sheet at high latitudes. To test this hypothesis, we present results from a high-resolution paleohydrologic model of groundwater flow, heat and solute transport, ice sheet loading, and sea level fluctuations for the continental shelf from New Jersey to Maine over the last 2 million years. Our analysis suggests that the presence of fresh to brackish water within shallow Miocene sands more than 100 km offshore of New Jersey was facilitated by discharge of submarine springs along Baltimore and Hudson Canyons where these shallow aquifers crop out. Recharge rates four times modern levels were computed for portions of New England's continental shelf that were overrun by the Laurentide ice sheet during the last glacial maximum. We estimate the volume of emplaced Pleistocene continental shelf fresh water (less than 1 ppt) to be 1300 km3 in New England. We also present estimates of continental shelf fresh water resources for the U.S. Atlantic eastern seaboard (104 km3) and passive margins globally (3 x 105 km3). The simulation results support the hypothesis that offshore fresh water is a potentially valuable, albeit nonrenewable resource for coastal megacities faced with growing water shortages.
C1 [Person, Mark] New Mexico Inst Min & Technol, Hydrol Program, Socorro, NM 87801 USA.
[Cohen, Denis] Iowa State Univ, Dept Geol & Atmospher Sci, Ames, IA 50011 USA.
[Wang, Peng] Indiana Univ, Univ Informat Technol Serv, Socorro, NM 87801 USA.
[Gable, Carl W.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Hutchinson, Deborah] US Geol Survey, Woods Hole, MA 02543 USA.
[Marksamer, Andee] Indiana Univ, Dept Geol Sci, Socorro, NM 87801 USA.
[Dugan, Brandon] Rice Univ, Dept Earth Sci, Houston, TX 77005 USA.
[Kooi, Henk; Groen, Koos] Vrije Univ Amsterdam, Amsterdam, Netherlands.
[Lizarralde, Daniel; Evans, Robert L.] Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA.
[Day-Lewis, Frederick D.; Lane, John W., Jr.] US Geol Survey, Off Groundwater, Branch Geophys, Storrs, CT 06269 USA.
RP Person, M (reprint author), New Mexico Inst Min & Technol, Hydrol Program, Socorro, NM 87801 USA.
EM mperson@nmt.edu
RI Dugan, Brandon/A-2651-2011; Gable, Carl/B-4689-2011; Cohen,
Denis/P-2015-2016;
OI Dugan, Brandon/0000-0002-2555-6430; Cohen, Denis/0000-0002-8262-9798;
Evans, Robert/0000-0001-5585-0684; Day-Lewis,
Frederick/0000-0003-3526-886X; Gable, Carl/0000-0001-7063-0815
FU U.S. National Science Foundation; Malcolm & Sylvia Boyce Endowment at
Indiana University; NSF; New Mexico NMCAC supercomputer center; USGS
FX This work was supported by the U.S. National Science Foundation and the
Malcolm & Sylvia Boyce Endowment at Indiana University. We gratefully
acknowledge computational support from the NSF Teragrid Program at
Indiana University and the New Mexico NMCAC supercomputer center, and
support from the USGS Groundwater Resources Program. We thank
Jean-Michel Lemieux and Steve Ingebritsen for their thorough reviews of
this paper.
NR 97
TC 35
Z9 35
U1 4
U2 32
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0017-467X
J9 GROUND WATER
JI Ground Water
PD JAN-FEB
PY 2010
VL 48
IS 1
BP 143
EP 158
DI 10.1111/j.1745-6584.2009.00627.x
PG 16
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 536SX
UT WOS:000273065200023
PM 19754848
ER
PT B
AU Cacciatori, SL
Cerchiai, BL
AF Cacciatori, Sergio L.
Cerchiai, B. L.
BE Danellis, CW
TI EXCEPTIONAL GROUPS, SYMMETRIC SPACES AND APPLICATIONS
SO GROUP THEORY: CLASSES, REPRESENTATION AND CONNECTIONS, AND APPLICATIONS
SE Mathematics Research Developments
LA English
DT Article; Book Chapter
ID EULER ANGLES; SU(N); PARAMETRIZATION; VOLUME; G(2)
AB In this article we provide a detailed description of a technique to obtain a simple parametrization for different exceptional Lie groups, such as G(2), F(4) and E(6), based on their fibration structure. For the compact case, we construct a realization which is a generalization of the Euler angles for SU(2), while for the non compact version of G(2(2))/SO(4) we compute the Iwasawa decomposition. This allows us to obtain not only an explicit expression for the Haar measure on the group manifold, but also for the cosets G(2)/SO(4), G(2)/SU (3), F(4)/Spin(9), E(6)/F(4) and G(2(2))/SO(4) that we used to find the concrete realization of the general element of the group. Moreover, as a by-product, in the simplest case of G(2)/SO(4), we have been able to compute an Einstein metric and the vielbein.
The relevance of these results in physics is discussed.
C1 [Cacciatori, Sergio L.] Univ Insubria Milano, Dipartimento Matemat & Fis, I-22100 Como, Italy.
[Cacciatori, Sergio L.] Ist Nazl Fis Nucl, Sez Milano, Milan, Italy.
[Cerchiai, B. L.] Univ Calif Berkeley, Lawrence Berkeley Lab, Theory Grp, Berkeley, CA 94720 USA.
[Cerchiai, B. L.] Univ Calif Berkeley, Ctr Theoret Phys, Berkeley, CA 94720 USA.
RP Cacciatori, SL (reprint author), Univ Insubria Milano, Dipartimento Matemat & Fis, I-22100 Como, Italy.
EM sergio.cacciatori@uninsubria.it; BLCerchiai@lbl.gov
OI Cerchiai, Bianca Letizia/0000-0002-0109-0330; Cacciatori, Sergio
Luigi/0000-0002-4167-9123
NR 26
TC 3
Z9 3
U1 0
U2 0
PU NOVA SCIENCE PUBLISHERS, INC
PI HAUPPAUGE
PA 400 OSER AVE, STE 1600, HAUPPAUGE, NY 11788-3635 USA
BN 978-1-60876-175-3
J9 MATH RES DEV
PY 2010
BP 177
EP 215
PG 39
WC Mathematics, Applied
SC Mathematics
GA BOM73
UT WOS:000277024300007
ER
PT S
AU Lee, JH
AF Lee, J. H.
CA STAR Collaboration
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Hadron Spectroscopy in Double Pomeron Exchange Processes with the STAR
Detector at RHIC
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates, Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE RHIC; STAR; DPE; Pomeron; Odderon; Glueball
ID CERN OMEGA-SPECTROMETER; COLLISIONS; ENERGIES; GEV/C
AB A new hadron spectroscopy program to study particle production at the central region through diffractive processes in polarized p + p collisions at root s = 200 - 500 GeV has been initiated with the STAR detector at RHIC. Staged implementation of multiple Roman Pot stations for tagging forward protons in diffractive processes allows studying for the first time the dynamics of the particle production in the diffractive processes systematically at the RHIC energy regime. The STAR detector system with complete azimuthal coverage at the central region equipped with excellent particle reconstruction capabilities enables studies of the constituent gluonic degree of freedom in double Pomeron exchange processes.
C1 [Lee, J. H.; STAR Collaboration] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Lee, JH (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
NR 23
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 53
EP 58
DI 10.1063/1.3483389
PG 6
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200007
ER
PT S
AU Thomas, CE
AF Thomas, Christopher E.
CA Hadron Spectrum Collaboration
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Lattice QCD, Photo Couplings and Radiative Transitions
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates (JSA), Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE Lattice QCD; radiative transitions; mesons; exotics; nucleons
AB We review recent progress in calculating radiative transition form factors using lattice QCD. We discuss results in the charmonium region involving excited states, states of high spin and exotics. As well as highlighting interesting results involving an exotic l(-+) states and a vector-hybrid candidate, we give comparison with experimental data and models. Some lattice calculations of baryon photocouplings are also mentioned. We conclude with some comments on future prospects.
C1 [Thomas, Christopher E.; Hadron Spectrum Collaboration] Jefferson Lab, Newport News, VA 23606 USA.
RP Thomas, CE (reprint author), Jefferson Lab, 12000 Jefferson Ave,Suite 1, Newport News, VA 23606 USA.
NR 15
TC 3
Z9 3
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 77
EP 84
DI 10.1063/1.3483442
PG 8
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200010
ER
PT S
AU Stepanyan, S
AF Stepanyan, Stepan
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Hadron Physics with CLAS12
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates, Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE Enter Keywords here
ID MODEL
AB Hadron spectroscopy has been an essential part of the physics program with the CLAS detector in experimental Hall B at Jefferson Lab. Production of baryon and meson resonances with high energy (polarized) electron and photon beams was studied on a veriety of targets, ranging from hydrogen to lead. Physics topics of interest include: investigation of the spectrum of baryon and meson resonances, transition form-factors, meson-nucleon couplings (mesons in nuclei), and search for exotic and missing states. With the 12 GeV upgrade of the CEBAF machine, hadron spectroscopy in Hall B will be extended to a new domain of higher mass resonances and the range of higher transferred momentum using up to 11 GeV electron beams and the upgraded CLAS12 detector. In this paper a brief description of the CLAS12 detector and the physics program adopted for 12 GeV with emphasis to baryon and meson spectroscopy is presented.
C1 Jefferson Lab, Newport News, VA USA.
RP Stepanyan, S (reprint author), Jefferson Lab, 12000 Jefferson Ave, Newport News, VA USA.
NR 20
TC 3
Z9 3
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 121
EP 128
DI 10.1063/1.3483308
PG 8
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200016
ER
PT S
AU Goity, JL
Jayalath, CP
Scoccola, NN
AF Goity, Jose L.
Jayalath, Chandana P.
Scoccola, Norberto N.
BE Crede, V
Eugenio, P
Ostrovidov, A
TI The 1/N-c Expansion in Baryons
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates (JSA), Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE Baryons; 1/N expansion
ID LARGE-N-C; EXCITED BARYONS; QCD; BREAKING; MASSES; MODEL
AB The 1/N-c expansion in baryons is discussed with two applications, namely baryon masses and partial decay widths. These applications provide the basic insights on the utility of the expansion.
C1 [Goity, Jose L.; Jayalath, Chandana P.] Jefferson Lab, Ctr Theory, Newport News, VA USA.
[Jayalath, Chandana P.] Hampton Univ, Dept Phys, Hampton, VA 23668 USA.
[Scoccola, Norberto N.] Univ Favalora, CONICET, Comis Nacl Energia Atom, Dept Phys, Buenos Aires, DF, Argentina.
RP Goity, JL (reprint author), Jefferson Lab, Ctr Theory, Newport News, VA USA.
FU DOE [DE-AC05-84ER40150]; SURA; National Science Foundation (USA)
[PHY-0300185 (JLG)]
FX This work was supported by DOE contract DE-AC05-84ER40150 under which
SURA operates the Thomas Jefferson National Accelerator Facility, and by
the National Science Foundation (USA) through grant # PHY-0300185 (JLG).
NR 50
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 181
EP +
DI 10.1063/1.3483316
PG 3
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200024
ER
PT S
AU Kaminski, R
El Bennich, B
Furman, A
Lesniak, L
Loiseau, B
Moussallam, B
AF Kaminski, Robert
El Bennich, B.
Furman, A.
Lesniak, L.
Loiseau, B.
Moussallam, B.
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Final state interactions and CP violation in B decays to three
pseudoscalars
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates (JSA), Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
AB We study CP violation and final state interactions between pions and kaons in B+, B-, -B-0 and (B) over bar (0) decays into K pi pi. The weak transition amplitudes consist of two terms: the first part is derived in QCD factorization approach and the second one is a phenomenological long-distance charming penguin contribution. The final state K pi interactions in S- and P-waves are described by strange scalar and vector form factors, respectively. These are determined using a unitary coupled channel model together with chiral symmetry and asymptotic QCD constraints. The final state interactions are dominated by presence of the scalar K-0* (1430) and the vector K* (892) resonances. We show that additional charming penguin amplitudes are needed to reproduce the latest experimental K pi effective mass and helicity angle distributions, branching fractions and asymmetries obtained by Belle and BaBar collaborations.
C1 [Kaminski, Robert; Lesniak, L.] Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Ul Radzikowskiego 152, PL-31342 Krakow, Poland.
[El Bennich, B.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Loiseau, B.] Univ Paris 06, CNRS, IN2P3, Lab Phys Nucl Hautes Energies, F-75252 Paris, France.
[Loiseau, B.] Univ Paris 07, CNRS, IN2P3, Lab Phys Nucl Hautes Energies, F-75252 Paris, France.
[Moussallam, B.] Univ Paris Sud 11, CNRS, IN2P3, Grp Physique Theor, F-91406 Orsay, France.
RP Kaminski, R (reprint author), Polish Acad Sci, Henryk Niewodniczanski Inst Nucl Phys, Ul Radzikowskiego 152, PL-31342 Krakow, Poland.
FU Polish Ministry of Science and Higher Education [N N202 248135];
IN2P3-Polish Laboratories Convention [08-127]
FX This work has been supported in part by the Polish Ministry of Science
and Higher Education (grant No N N202 248135) and by the IN2P3-Polish
Laboratories Convention (project No 08-127)
NR 7
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 355
EP +
PG 2
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200055
ER
PT S
AU Close, F
Downum, C
Thomas, C
AF Close, Frank
Downum, Clark
Thomas, Christopher
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Novel Charmonium and Bottomonium Spectroscopies due to Deeply Bound
Hadronic Molecules from Single Pion Exchange
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates (JSA), Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE Anomalous States; Molecular Models; Meson Exchange
ID HEAVY MESONS; STATES
AB Pion exchange in S-wave between hadrons that are themselves in a relative S-wave are shown to shift energies by hundreds of MeV. In the case of charmed mesons D,D*,D-0, D-1 a spectroscopy of quasi-molecular states may arise consistent with enigmatic charmonium states observed above 4 GeV in e(+)e(-) annihilation. A possible explanation of Y(4260)-> psi pi pi and Y(43 (60) under bar)->psi'pi pi is found. Searches in D (D) over bar3 pi and B (B) over bar3 pi channels are recommended to test this hypothesis. An exotic 1(-+) in D (D) over bar pi (non D* D*) is predicted.
C1 [Close, Frank] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, 1 Keble Rd, Oxford OX1 3NP, England.
[Downum, Clark] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England.
[Thomas, Christopher] Jefferson Lab, Newport News, VA 23606 USA.
RP Close, F (reprint author), Univ Oxford, Rudolf Peierls Ctr Theoret Phys, 1 Keble Rd, Oxford OX1 3NP, England.
FU Office of Nuclear Physics, U.S. Department of Energy; Science &
Technology Facilities Council (UK); EU [MRTN-CT-2006-035482]; FLAVIAnet;
U.S. DOE [DE-AC05-06OR23177]
FX Research sponsored in part by the Office of Nuclear Physics, U.S.
Department of Energy. Authored in part by Jefferson Science Associates,
LLC under U.S. DOE Contract No. DE-AC05-06OR23177. The U.S. Government
retains a nonexclusive, paid-up, irrevocable, world-wide license to
publish or reproduce this manuscript for U.S. Government purposes. This
work is supported in part by grants from the Science & Technology
Facilities Council (UK) and in part by the EU Contract No.
MRTN-CT-2006-035482, FLAVIAnet.
NR 16
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 423
EP +
DI 10.1063/1.3483363
PG 2
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200069
ER
PT S
AU Graham, L
Park, K
Gothe, R
Smith, E
AF Graham, Lewis
Park, Kijun
Gothe, Ralf
Smith, Elton
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Study of the two pion final state photoproduction on deuterium
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates (JSA), Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
AB Understanding the structure of baryons in terms of the fundamental interaction of the constituent quarks and gluons is one of the challenges in strong interaction physics. This interaction is governed by Quantum Chromodynamics (QCD). However, solutions of this theory in the non-perturbative domain of the interaction are extremely difficult to achieve. In inelastic electron scattering, very little is known about exclusive hadron production purely contributed to a lack of knowledge. The gamma N interaction is recognized for being a powerful method for investigating hadrons and the mysteries that still exist within the strong interaction. From reactions with the nucleon, the strong interaction can be tested through the amplitudes of the N and Delta resonances. More specifically, if an electromagnetic interaction is well known then the intermediate resonance states may be evaluated through pion photoproduction. To gain more detailed insight into this interaction, we look to probe the baryon structure of Delta and the meson structure of the pion through photon scattering off a deuteron producing two pions in the final state. The photoproduction processes on the deuteron will be used to investigate known baryon resonances in the proton-pion channel. The two pion final state will be investigated for unraveling new information in to the rho decay at threshold. We want to explore both final states interactions to search for "missing" states that are predicted by quark models but have not yet been found experimentally. Using the CEBAF Large Acceptance Spectrometer (CLAS), the hadronic products are detected in coincidence with the scattered photon. This makes it possible to measure the differential cross section and the decay angular distribution for the production of two and three pion final states. The measured cross sections will contribute significantly and push the knowledge of the strong interaction to the next level. We propose to use the CEBAF Large Acceptance Spectrometer (CLAS) to study the two pion channel from the EG3 data set, for Delta(++) (1232) production. We look to investigate the exclusive reaction of gamma d -> p pi(+)pi(-)(n), extracting the relevant cross sections to comparable data sets. This reaction is produced using a high intensity photon beam incident on a deuterium target. These measurements provide unique and coherent results from tagged photons over a broad range of energy, and represent the only pion production data above 5 GeV at this present time.
C1 [Graham, Lewis; Gothe, Ralf] Univ South Carolina, Dept Phys, Columbia, SC 29208 USA.
[Park, Kijun; Smith, Elton] Thomas Jefferson Natl Accelerator Fac, Newport News, VA 23606 USA.
RP Graham, L (reprint author), Univ South Carolina, Dept Phys, Columbia, SC 29208 USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 528
EP +
DI 10.1063/1.3483386
PG 2
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200091
ER
PT S
AU Higinbotham, DW
AF Higinbotham, D. W.
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Precision Measurements of the Proton Elastic Form Factor Ratio
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates, Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE Proton Form Factor
ID SPECTROMETER; SCATTERING; FACILITY; NIKHEF; CEBAF
AB New high precision polarization measurements of the proton elastic form factor ratio in the Q(2) range from 0.3 to 0.7 [GeV/c](2) have been made. These elastic H(e,e'p) measurements were done in Jefferson Lab's Hall A using 80% longitudinally polarized electrons and recoil polarimetry. For Q(2) greater than 1 [GeV/c](2), previous polarization data indicated a strong deviation of the form factor ratio from unity which sparked renewed theoretical and experimental interest in how two-photon diagrams have been taken into account. The new high precision data indicate that the deviation from unity, while small, persists even at Q(2) less than 1 [GeV/c](2).
C1 Jefferson Lab, Newport News, VA 23606 USA.
RP Higinbotham, DW (reprint author), Jefferson Lab, Newport News, VA 23606 USA.
RI Higinbotham, Douglas/J-9394-2014
OI Higinbotham, Douglas/0000-0003-2758-6526
NR 28
TC 3
Z9 3
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 637
EP 640
DI 10.1063/1.3483410
PG 4
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200113
ER
PT S
AU Gabrielyan, M
Raue, B
Dhamija, S
Carman, DS
AF Gabrielyan, Marianna
Raue, Brian
Dhamija, Seema
Carman, Daniel S.
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Measurement of the Induced Polarization of Lambda (1116) in Kaon
Electroproduction with CLAS
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates (JSA), Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE kaon; hyperon; electroproduction; polarization
ID BARYON RESONANCES; PHOTOPRODUCTION
AB The CLAS Collaboration is using the p(e,e'K(+)p)pi(-) reaction to measure the induced polarization of the electroproduced Lambda(1116). In this experiment a 5.499-GeV electron beam was incident upon an unpolarized liquid-hydrogen target. The CEBAF Large Acceptance Spectrometer (CLAS) was used to detect the scattered electron, the kaon, and the decay proton from the Lambda hyperon. CLAS allowed for a large kinematic acceptance in Q(2) (0.75 <= Q(2)<= 3.5 GeV2) and W (1.6 <= W <= 3.0 GeV), as well as the kaon center-of-mass scattering angle. The goal is to map out the kinematic dependencies for the induced polarization in order to provide new constraints on models of K-hyperon production. Along with previously published photo- and electroproduction cross sections and polarization observables from CLAS, LEPS, SAPHIR, and GRAAL, these new induced polarization data are needed in coupled-channel analyses to search for previously unobserved s-channel resonances. Preliminary polarization results are presented.
C1 [Gabrielyan, Marianna; Raue, Brian; Dhamija, Seema] Florida Int Univ, Miami, FL 33199 USA.
[Carman, Daniel S.] Jefferson Lab, Newport News, VA 23606 USA.
RP Gabrielyan, M (reprint author), Florida Int Univ, Miami, FL 33199 USA.
FU U.S. Dept. of Energy; Graduate School at Florida International
University
FX This work is funded in part by the U.S. Dept. of Energy and the Graduate
School at Florida International University.
NR 15
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 656
EP +
DI 10.1063/1.3483414
PG 2
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200117
ER
PT S
AU Higinbotham, DW
Sulkosky, V
AF Higinbotham, D. W.
Sulkosky, V.
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Understanding Nucleons in the Nuclear Medium
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates (JSA), Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE short-range correlations; tensor correlations; medium modifications
ID SPECTROMETER; ELECTRONS; TARGET; NIKHEF
AB Recent cross section (e,e'pN) short-range correlation experiments have clearly shown the strong dominance of tensor correlations for (e,e'p) missing momenta greater than the Fermi momentum; while recent H-2(e,e'p)n and He-4(e,e'p)t asymmetry experiments at low missing momentum have shown small changes from the free nucleon form factor. By doing asymmetry experiments as a function of missing momentum, these results can be linked together and observed as a change of sign in the measured asymmetry. This idea will be presented within the context of the recently completed Jefferson Lab Hall A quasi-elastic, polarized He-3(e,e'N) experiments (N=0,p,n,d) where the asymmetries of several reaction channels were measured with three, orthogonal target-spin directions. Together, these various experiments will help us to better understand nucleons in the nuclear medium.
C1 [Higinbotham, D. W.] Jefferson Lab, Newport News, VA 23606 USA.
[Sulkosky, V.] MIT, Cambridge, MA 02139 USA.
RP Higinbotham, DW (reprint author), Jefferson Lab, Newport News, VA 23606 USA.
RI Higinbotham, Douglas/J-9394-2014
OI Higinbotham, Douglas/0000-0003-2758-6526
NR 26
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 729
EP +
DI 10.1063/1.3483430
PG 2
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200132
ER
PT S
AU Kojo, T
Hidaka, Y
McLerran, L
Pisarski, RD
AF Kojo, Toru
Hidaka, Yoshimasa
McLerran, Larry
Pisarski, Robert D.
BE Crede, V
Eugenio, P
Ostrovidov, A
TI Quarkyonic Chiral Spirals
SO HADRON 2009
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 13th International Conference on Hadron Spectroscopy
CY NOV 29-DEC 04, 2009
CL Tallahassee, FL
SP Florida State Univ, Jefferson Sci Associates (JSA), Thomas Jefferson Natl Accelerator Facil, Fermi Natl Accelerator Lab
DE Dense quark matter; Chiral symmetry breaking; Large N-c expansion
ID LARGE N-C; DENSITY; QCD
AB After a brief introduction of the Quarkyonic matter, we argue a possibility of exciton and density wave condensations of chiral particle-hole pairs. Following the Gribov-Zwanziger arguments for Coulomb gauge QCD, we introduce a model of linear confinement. We show that to the leading order of 1/N-c and Lambda(QcD)/mu, our 3 + 1 dimensional model with N-f flavors reduces to QCD in 1 + 1 dimensions with 2N(f) flavors. A doubling of flavors originates from an approximate spin SU (2) symmetry in 3 + 1 dimensional dynamics in Lambda(QcD)/mu -> 0 limit. The reduced 1 + 1 dimensional model with finite density can be mapped onto that in vacuum through anomalous chiral rotation, and then can be solved. We found Quarkyonic Chiral Spiral a chiral condensate forms locally, and varies with the spatial position, z, as ((Psi) over bar exp(2i mu z gamma(0)gamma(z))Psi), rotating in the chiral space. This illustrates local violation but global restoration of the chiral symmetry.
C1 [Kojo, Toru] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Kojo, T (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
FU DOE [DE-AC02-98CH10886]; RIKEN; Alexander von Humboldt Foundation;
Ministry of Education, Culture, Sports, Science and Technology (MEXT) of
Japan
FX The research of T. Kojo, L. McLerran, and R. D. Pisarski is supported
under DOE Contract No. DE-AC02-98CH10886. The research of T.K. and L.M.
is supported from RIKEN. R.D.P. thanks the Alexander von Humboldt
Foundation for their support. This research of Y. Hidaka is supported by
the Grant-in-Aid for the Global COE Program The Next Generation of
Physics, Spun from Universality and Emergence from the Ministry of
Education, Culture, Sports, Science and Technology (MEXT) of Japan.
NR 9
TC 1
Z9 1
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0807-4
J9 AIP CONF PROC
PY 2010
VL 1257
BP 732
EP +
DI 10.1063/1.3483431
PG 2
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BQZ07
UT WOS:000282166200133
ER
PT S
AU Misra, M
Faulon, JL
AF Misra, Milind
Faulon, Jean-Loup
BE Faulon, JL
Bender, A
TI Algorithms to Store and Retrieve Two-Dimensional (2D) Chemical
Structures
SO HANDBOOK OF CHEMOINFORMATICS ALGORITHMS
SE Chapman & Hall CRC Mathematical and Computational Biology Series
LA English
DT Article; Book Chapter
ID LINE NOTATION SLN; TOPOLOGICAL SYMMETRY; ABSTRACTS-SERVICE; GRAPH
ISOMORPHISM; PERCEPTION; GENERATION; SMILES; REPRESENTATION;
TAUTOMERISM; DEPICTION
C1 [Misra, Milind] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Faulon, Jean-Loup] Univ Evry, Dept Biol, Evry, France.
RP Misra, M (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 51
TC 0
Z9 0
U1 0
U2 0
PU CRC PRESS-TAYLOR & FRANCIS GROUP
PI BOCA RATON
PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA
SN 2154-8064
BN 978-1-4200-8299-9
J9 CH CRC MATH COMP BIO
JI Math. Comp. Biol. Ser.
PY 2010
BP 37
EP 64
D2 10.1201/9781420082999
PG 28
WC Chemistry, Multidisciplinary; Computer Science, Information Systems;
Computer Science, Interdisciplinary Applications
SC Chemistry; Computer Science
GA BTB69
UT WOS:000286379300003
ER
PT S
AU Clark, RD
Roe, DC
AF Clark, Robert D.
Roe, Diana C.
BE Faulon, JL
Bender, A
TI Ligand- and Structure-Based Virtual Screening
SO HANDBOOK OF CHEMOINFORMATICS ALGORITHMS
SE Chapman & Hall CRC Mathematical and Computational Biology Series
LA English
DT Article; Book Chapter
ID BIOACTIVE REFERENCE STRUCTURES; CDC25 PHOSPHATASE INHIBITORS; AUTOMATED
MOLECULAR DOCKING; EMPIRICAL SCORING FUNCTION; DATA FUSION; CHEMICAL
SIMILARITY; GENETIC ALGORITHM; DRUG DISCOVERY; 3-DIMENSIONAL STRUCTURE;
ACCURATE DOCKING
C1 [Clark, Robert D.] Indiana Univ, Sch Informat, Bloomington, IN 47405 USA.
[Roe, Diana C.] Sandia Natl Labs, Dept Biosyst Res, Livermore, CA USA.
RP Clark, RD (reprint author), Indiana Univ, Sch Informat, Bloomington, IN 47405 USA.
NR 107
TC 1
Z9 1
U1 0
U2 0
PU CRC PRESS-TAYLOR & FRANCIS GROUP
PI BOCA RATON
PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA
SN 2154-8064
BN 978-1-4200-8299-9
J9 CH CRC MATH COMP BIO
JI Math. Comp. Biol. Ser.
PY 2010
BP 145
EP 171
D2 10.1201/9781420082999
PG 27
WC Chemistry, Multidisciplinary; Computer Science, Information Systems;
Computer Science, Interdisciplinary Applications
SC Chemistry; Computer Science
GA BTB69
UT WOS:000286379300006
ER
PT S
AU Roe, DC
AF Roe, Diana C.
BE Faulon, JL
Bender, A
TI Computer-Aided Molecular Design De Novo Design
SO HANDBOOK OF CHEMOINFORMATICS ALGORITHMS
SE Chapman & Hall CRC Mathematical and Computational Biology Series
LA English
DT Article; Book Chapter
ID DIRECTED DRUG DESIGN; PRIMARY STRUCTURE GENERATION; COPY SIMULTANEOUS
SEARCH; LIGAND DESIGN; GENETIC ALGORITHM; BINDING-SITES; COMBINATORIAL
CHEMISTRY; SYNTHETIC ACCESSIBILITY; LEUCINE AMINOPEPTIDASE; EVOLUTIONARY
ALGORITHM
C1 Sandia Natl Labs, Dept Biosyst Res, Livermore, CA USA.
RP Roe, DC (reprint author), Sandia Natl Labs, Dept Biosyst Res, Livermore, CA USA.
NR 82
TC 1
Z9 1
U1 0
U2 1
PU CRC PRESS-TAYLOR & FRANCIS GROUP
PI BOCA RATON
PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA
SN 2154-8064
BN 978-1-4200-8299-9
J9 CH CRC MATH COMP BIO
JI Math. Comp. Biol. Ser.
PY 2010
BP 295
EP 315
D2 10.1201/9781420082999
PG 21
WC Chemistry, Multidisciplinary; Computer Science, Information Systems;
Computer Science, Interdisciplinary Applications
SC Chemistry; Computer Science
GA BTB69
UT WOS:000286379300011
ER
PT S
AU Martin, S
AF Martin, Shawn
BE Faulon, JL
Bender, A
TI Machine Learning-Based Bioinformatics Algorithms Application to
Chemicals
SO HANDBOOK OF CHEMOINFORMATICS ALGORITHMS
SE Chapman & Hall CRC Mathematical and Computational Biology Series
LA English
DT Article; Book Chapter
ID SUPPORT VECTOR MACHINES; SIGNATURE MOLECULAR DESCRIPTOR; EXTENDED
VALENCE SEQUENCES; STRUCTURE-PROPERTY CORRELATION; PROTEIN-PROTEIN
INTERACTIONS; GENE-EXPRESSION PATTERNS; CLUSTERING ALGORITHMS; DNA
MICROARRAY; PREDICTION; CLASSIFICATION
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Martin, S (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 84
TC 1
Z9 1
U1 0
U2 1
PU CRC PRESS-TAYLOR & FRANCIS GROUP
PI BOCA RATON
PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA
SN 2154-8064
BN 978-1-4200-8299-9
J9 CH CRC MATH COMP BIO
JI Math. Comp. Biol. Ser.
PY 2010
BP 383
EP 398
D2 10.1201/9781420082999
PG 16
WC Chemistry, Multidisciplinary; Computer Science, Information Systems;
Computer Science, Interdisciplinary Applications
SC Chemistry; Computer Science
GA BTB69
UT WOS:000286379300015
ER
PT S
AU Mu, FP
Bauer, AL
Faeder, JR
Hlavacek, WS
AF Mu, Fangping
Bauer, Amy L.
Faeder, James R.
Hlavacek, William S.
BE Faulon, JL
Bender, A
TI Using Systems Biology Techniques to Determine Metabolic Fluxes and
Metabolite Pool Sizes
SO HANDBOOK OF CHEMOINFORMATICS ALGORITHMS
SE Chapman & Hall CRC Mathematical and Computational Biology Series
LA English
DT Article; Book Chapter
ID ISOTOPOMER MAPPING MATRICES; ESCHERICHIA-COLI; INTERMEDIARY METABOLISM;
BIOCHEMICAL NETWORKS; DATABASE; RECONSTRUCTION; DISTRIBUTIONS; PATHWAYS;
MODELS; MS
C1 [Mu, Fangping; Bauer, Amy L.; Hlavacek, William S.] Los Alamos Natl Lab, Div Theoret, Theoret Biol & Biophys Grp, Los Alamos, NM USA.
[Faeder, James R.] Univ Pittsburgh, Sch Med, Dept Computat Biol, Pittsburgh, PA USA.
RP Mu, FP (reprint author), Los Alamos Natl Lab, Div Theoret, Theoret Biol & Biophys Grp, Los Alamos, NM USA.
NR 36
TC 0
Z9 0
U1 0
U2 0
PU CRC PRESS-TAYLOR & FRANCIS GROUP
PI BOCA RATON
PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA
SN 2154-8064
BN 978-1-4200-8299-9
J9 CH CRC MATH COMP BIO
JI Math. Comp. Biol. Ser.
PY 2010
BP 399
EP 422
D2 10.1201/9781420082999
PG 24
WC Chemistry, Multidisciplinary; Computer Science, Information Systems;
Computer Science, Interdisciplinary Applications
SC Chemistry; Computer Science
GA BTB69
UT WOS:000286379300016
ER
PT B
AU Montella, R
Foster, I
AF Montella, Raffaele
Foster, Ian
BE Furht, B
Escalante, A
TI Using Hybrid Grid/Cloud Computing Technologies for Environmental Data
Elastic Storage, Processing, and Provisioning
SO HANDBOOK OF CLOUD COMPUTING
LA English
DT Article; Book Chapter
C1 [Montella, Raffaele] Univ Napoli Parthenope, Dept Appl Sci, Naples, Italy.
[Foster, Ian] Univ Chicago, Chicago, IL 60637 USA.
[Foster, Ian] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Montella, R (reprint author), Univ Napoli Parthenope, Dept Appl Sci, Naples, Italy.
RI Foster, Ian/A-1357-2007
OI Foster, Ian/0000-0003-2129-5269
NR 22
TC 3
Z9 3
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-6523-3
PY 2010
BP 595
EP 618
DI 10.1007/978-1-4419-6524-0_26
D2 10.1007/978-1-4419-6524-0
PG 24
WC Computer Science, Information Systems; Computer Science, Theory &
Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BSU10
UT WOS:000285802100026
ER
PT J
AU Erdemir, A
Voevodin, AA
AF Erdemir, Ali
Voevodin, Andrey A.
BE Martin, PM
TI Nanocomposite Coatings for Severe Applications
SO HANDBOOK OF DEPOSITION TECHNOLOGIES FOR FILMS AND COATINGS: SCIENCE,
APPLICATIONS AND TECHNOLOGY, 3RD EDITION
LA English
DT Article; Book Chapter
ID SOLID LUBRICANT COATINGS; SUPERHARD NANOCRYSTALLINE COMPOSITES;
HIGH-TEMPERATURE CHLORINATION; CHAMELEON SURFACE ADAPTATION; PULSED
LASER DEPOSITION; HARD PVD COATINGS; TRIBOLOGICAL COATINGS; DIAMOND
FILMS; VACUUM-ARC; MECHANICAL-PROPERTIES
C1 [Erdemir, Ali] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Voevodin, Andrey A.] USAF, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA.
RP Erdemir, A (reprint author), Argonne Natl Lab, Div Energy Syst, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 133
TC 9
Z9 9
U1 1
U2 4
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552032-0
PY 2010
BP 679
EP 715
DI 10.1016/B978-0-8155-2031-3.00014-4
PG 37
WC Materials Science, Coatings & Films
SC Materials Science
GA BER82
UT WOS:000317907100015
ER
PT B
AU Dienes, JK
AF Dienes, John K.
BE Rene, C
Turcotte, E
TI UNRAVELLING XDT: STUDIES OF SOME RARE, BUT VIOLENT, EXPLOSIONS WITH
STATISTICAL CRACK MECHANICS
SO HANDBOOK OF MATERIAL SCIENCE RESEARCH
SE Materials Science and Technologies
LA English
DT Article; Book Chapter
ID PROPELLANTS; INITIATION; IGNITION
AB The impact tests for propellant sensitivity reported by Jensen, Blommer and Brown (JBB) were anomalous in several respects. First, 12 out of 50 impacts at moderate speeds led to especially violent explosions (XDT) while the remaining 38 produced only mild deflagrations (DEF). XDT generally occurred following impact at speeds lower than those leading to shock-to-detonation (SDT), which occurred in the 22 shots at speeds above 2500fps. Moreover, the violent reactions occurred at relatively late times, in excess of 30 microseconds after impact, rather than the 5 microseconds typically associated with SDT. Finally, the blast pressure associated with the violent explosions was even higher than in SDT and the cratering was more profound. Since these results defied explanation by the mechanisms associated with classical detonation theory, the process was termed XDT. In XDT shock heating was considered negligible, as further evidenced by the late reaction time.
This report summarizes some mechanisms postulated by the author during the last 30 years to explain the observations of JBB and other violent but non-repeatable reactions in propellants and explosives. The fundamental assumption herein is that defects occur at random and that heating of these defects following impact may lead to reactive hot spots. More specifically, it is postulated that the defects are shear cracks in which interfacial sliding leads to frictional heating that, in turn, causes vigorous reactions that may culminate in violent explosions. Our analysis shows, however, that a single hot spot will not result in violent explosion since rapid expansion of the gas-filled cavities reduces the gas pressure enough to quench the reaction. Thus, we conclude that interactions of defects is responsible for the observed violence.
Three types of interactions are thought to contribute to the suddenness of the violence. In one, pulses from reactions in one defect enhance the pressure in adjoining defects and this feeds back to the first defect, initiating a divergent oscillation. Such interactions have been observed in special simulations. Further, growing cracks can intersect to form larger, more unstable, cracks, and a large enough number of intersections can result in a network of cracks that supports violent reactions. This is thought to occur when the concentration of cracks exceeds the percolation threshold, causing a violent reaction. Finally, we hypothesize that radiation between connected cracks can cause the heat produced by chemical reactions to spread extremely rapidly, leading to violent explosions.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Dienes, JK (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
NR 44
TC 0
Z9 0
U1 0
U2 2
PU NOVA SCIENCE PUBLISHERS, INC
PI HAUPPAUGE
PA 400 OSER AVE, STE 1600, HAUPPAUGE, NY 11788-3635 USA
BN 978-1-60741-798-9
J9 MATER SCI TECHNOL
PY 2010
BP 271
EP 293
PG 23
WC Materials Science, Multidisciplinary
SC Materials Science
GA BPT05
UT WOS:000279832800005
ER
PT S
AU Watson, JP
AF Watson, Jean-Paul
BE Gendreau, M
Potvin, JY
TI An Introduction to Fitness Landscape Analysis and Cost Models for Local
Search
SO HANDBOOK OF METAHEURISTICS, SECOND EDITION
SE International Series in Operations Research & Management Science
LA English
DT Article; Book Chapter
ID TRAVELING-SALESMAN PROBLEM; PROBLEM DIFFICULTY; TABU SEARCH; ALGORITHM;
DYNAMICS
AB Despite their empirical effectiveness, our theoretical understanding of metaheuristic algorithms based on local search (and all other paradigms) is very limited, leading to significant problems for both researchers and practitioners. Specifically, the lack of a theory of local search impedes the development of more effective metaheuristic algorithms, prevents practitioners from identifying the metaheuristic most appropriate for a given problem, and permits widespread conjecture and misinformation regarding the benefits and/or drawbacks of particular metaheuristics. Local search metaheuristic performance is closely linked to the structure of the fitness landscape, i.e., the nature of the underlying search space. Consequently, understanding such structure is a first step toward understanding local search behavior, which can ultimately lead to a more general theory of local search. In this chapter, we introduce and survey the literature on fitness landscape analysis for local search, placing the research in the context of a broader, critical classification scheme delineating methodologies by their potential to account for local search metaheuristic performance.
C1 Sandia Natl Labs, Discrete Math & Complex Syst Dept, Albuquerque, NM 87185 USA.
RP Watson, JP (reprint author), Sandia Natl Labs, Discrete Math & Complex Syst Dept, POB 5800 MS 1318, Albuquerque, NM 87185 USA.
EM jwatson@sandia.gov
NR 45
TC 11
Z9 11
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 0884-8289
BN 978-1-4419-1663-1
J9 INT SER OPER RES MAN
PY 2010
VL 146
BP 599
EP 623
DI 10.1007/978-1-4419-1665-5_20
D2 10.1007/978-1-4419-1665-5
PG 25
WC Business; Economics; Management; Operations Research & Management
Science
SC Business & Economics; Operations Research & Management Science
GA BRI44
UT WOS:000282771200020
ER
PT B
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Handbook of Physical Vapor Deposition (PVD) Processing Second edition
Introduction
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Editorial Material; Book Chapter
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 1
EP 24
PG 24
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200002
ER
PT B
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Handbook of Physical Vapor Deposition (PVD) Processing Second edition
Preface
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Editorial Material; Book Chapter
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP XIX
EP XX
PG 2
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200001
ER
PT J
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Substrate ("Real") Surfaces and Surface Modification
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID COATINGS
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 15
TC 2
Z9 2
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 25
EP 72
PG 48
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200003
ER
PT J
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI The "Good" Vacuum (Low Pressure) Processing Environment
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID ULTRAHIGH-VACUUM; EQUIPMENT; SURFACES; DESIGN; SYSTEM
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 17
TC 1
Z9 1
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 73
EP 145
PG 73
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200004
ER
PT B
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI The Sub-Atmospheric Processing Environment
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 7
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 147
EP 156
PG 10
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200005
ER
PT B
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI The Low Pressure Plasma Processing Environment
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID MAGNETRON
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 31
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 157
EP 193
PG 37
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200006
ER
PT J
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Vacuum Evaporation and Vacuum Deposition
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID ALLOY
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 43
TC 1
Z9 1
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 195
EP 235
PG 41
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200007
ER
PT J
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Physical Sputtering and Sputter Deposition (Sputtering)
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID HARD COATINGS; FILM GROWTH; THIN-FILMS; MAGNETRON; MICROSTRUCTURE;
PARTICLES; STRESS; DESIGN; SYSTEM
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 104
TC 7
Z9 7
U1 1
U2 1
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 237
EP 286
PG 50
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200008
ER
PT B
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Arc Vapor Deposition
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID VACUUM-ARC; COATINGS; SYSTEM; FILMS
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 27
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 287
EP 300
PG 14
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200009
ER
PT B
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Ion Plating and Ion Beam-Assisted Deposition
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID PHYSICAL VAPOR-DEPOSITION; DIAMOND-LIKE CARBON; THIN METAL-FILMS;
HOLLOW-CATHODE; SPUTTER-DEPOSITION; HARD COATINGS; ENERGY; TECHNOLOGY;
BOMBARDMENT; ADHESION
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 79
TC 1
Z9 1
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2; 978-0-81-552037-5
PY 2010
BP 301
EP 331
PG 31
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200010
ER
PT J
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Atomistic Film Growth and Some Growth-Related Film Properties
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID ION-ASSISTED DEPOSITION; THIN-FILMS; GOLD-FILMS; MECHANICAL-PROPERTIES;
VAPOR-DEPOSITION; PHYSICAL-PROPERTIES; SPUTTER-DEPOSITION; TIN FILMS;
ALUMINUM; SURFACE
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 113
TC 7
Z9 7
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 333
EP 398
PG 66
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200011
ER
PT J
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Film Characterization and Some Basic Film Properties
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID X-RAY-FLUORESCENCE; THIN-FILM; MECHANICAL-PROPERTIES; THICKNESS
MEASUREMENT; MOLYBDENUM FILMS; COATINGS; SUBSTRATE; HARDNESS; STRESS;
CRACKING
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 100
TC 1
Z9 1
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 399
EP 438
PG 40
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200012
ER
PT J
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Adhesion and Deadhesion
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
ID THIN-FILM ADHESION; GOLD-FILMS; INTERNAL-STRESS; METAL-FILMS; SCRATCH
TESTER; SHEAR TEST; TIN FILMS; COATINGS; DIFFUSION; SUBSTRATE
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 123
TC 1
Z9 1
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 439
EP 474
PG 36
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200013
ER
PT J
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI Cleaning
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 9
TC 1
Z9 1
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 475
EP 527
PG 53
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200014
ER
PT B
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI The External Processing Environment
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 529
EP 544
PG 16
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200015
ER
PT B
AU Mattox, DM
AF Mattox, Donald M.
BA Mattox, DM
BF Mattox, DM
TI The Transfer of Technology from Research and Development to
Manufacturing
SO HANDBOOK OF PHYSICAL VAPOR DEPOSITION (PVD) PROCESSING, 2ND EDITION
LA English
DT Article; Book Chapter
C1 [Mattox, Donald M.] USAF, Washington, DC USA.
[Mattox, Donald M.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Mattox, Donald M.] Sandia Natl Labs, Surface & Interface Technol Div, Livermore, CA 94550 USA.
RP Mattox, DM (reprint author), Management Plus Inc, Field PVD Proc, Albuquerque, NM USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-0-81-552038-2
PY 2010
BP 545
EP 552
PG 8
WC Materials Science, Coatings & Films
SC Materials Science
GA BEN64
UT WOS:000317483200016
ER
PT B
AU Cheremisinoff, NP
Rosenfeld, PE
AF Cheremisinoff, Nicholas P.
Rosenfeld, Paul E.
BA Cheremisinoff, NP
Rosenfeld, PE
BF Cheremisinoff, NP
Rosenfeld, PE
TI Wood-preserving chemicals
SO HANDBOOK OF POLLUTION PREVENTION AND CLEANER PRODUCTION, VOL 2: BEST
PRACTICES IN THE WOOD AND PAPER INDUSTRIES
LA English
DT Article; Book Chapter
ID CHROMATOGRAPHY; COMPONENTS; CREOSOTES
C1 [Cheremisinoff, Nicholas P.] World Bank Org, Washington, DC USA.
[Cheremisinoff, Nicholas P.] US Agcy Int Dev, Washington, DC 20523 USA.
[Cheremisinoff, Nicholas P.] US DOE, Washington, DC 20585 USA.
RP Cheremisinoff, NP (reprint author), World Bank Org, Washington, DC USA.
NR 23
TC 0
Z9 0
U1 0
U2 1
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-1-4377-7833-5; 978-0-08-096446-1
PY 2010
BP 1
EP 26
PG 26
WC Engineering, Environmental; Materials Science, Paper & Wood
SC Engineering; Materials Science
GA BIB08
UT WOS:000327194200002
ER
PT B
AU Cheremisinoff, NP
Rosenfeld, PE
AF Cheremisinoff, Nicholas P.
Rosenfeld, Paul E.
BA Cheremisinoff, NP
Rosenfeld, PE
BF Cheremisinoff, NP
Rosenfeld, PE
TI Handbook of Pollution Prevention and Cleaner Production Volume 2 Best
Practices in the Wood and Paper Industries Preface
SO HANDBOOK OF POLLUTION PREVENTION AND CLEANER PRODUCTION, VOL 2: BEST
PRACTICES IN THE WOOD AND PAPER INDUSTRIES
LA English
DT Editorial Material; Book Chapter
C1 [Cheremisinoff, Nicholas P.] World Bank Org, Washington, DC USA.
[Cheremisinoff, Nicholas P.] US Agcy Int Dev, Washington, DC 20523 USA.
[Cheremisinoff, Nicholas P.] US DOE, Washington, DC 20585 USA.
RP Cheremisinoff, NP (reprint author), World Bank Org, Washington, DC USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-1-4377-7833-5; 978-0-08-096446-1
PY 2010
BP XI
EP XIV
DI 10.1016/B978-0-08-096446-1.10011-5
PG 4
WC Engineering, Environmental; Materials Science, Paper & Wood
SC Engineering; Materials Science
GA BIB08
UT WOS:000327194200001
ER
PT B
AU Cheremisinoff, NP
Rosenfeld, PE
AF Cheremisinoff, Nicholas P.
Rosenfeld, Paul E.
BA Cheremisinoff, NP
Rosenfeld, PE
BF Cheremisinoff, NP
Rosenfeld, PE
TI Wood-preserving technology
SO HANDBOOK OF POLLUTION PREVENTION AND CLEANER PRODUCTION, VOL 2: BEST
PRACTICES IN THE WOOD AND PAPER INDUSTRIES
LA English
DT Article; Book Chapter
C1 [Cheremisinoff, Nicholas P.] World Bank Org, Washington, DC USA.
[Cheremisinoff, Nicholas P.] US Agcy Int Dev, Washington, DC 20523 USA.
[Cheremisinoff, Nicholas P.] US DOE, Washington, DC 20585 USA.
RP Cheremisinoff, NP (reprint author), World Bank Org, Washington, DC USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-1-4377-7833-5; 978-0-08-096446-1
PY 2010
BP 27
EP 41
DI 10.1016/B978-0-08-096446-1.10002-4
PG 15
WC Engineering, Environmental; Materials Science, Paper & Wood
SC Engineering; Materials Science
GA BIB08
UT WOS:000327194200003
ER
PT B
AU Cheremisinoff, NP
Rosenfeld, PE
AF Cheremisinoff, Nicholas P.
Rosenfeld, Paul E.
BA Cheremisinoff, NP
Rosenfeld, PE
BF Cheremisinoff, NP
Rosenfeld, PE
TI Pollution and pollution controls
SO HANDBOOK OF POLLUTION PREVENTION AND CLEANER PRODUCTION, VOL 2: BEST
PRACTICES IN THE WOOD AND PAPER INDUSTRIES
LA English
DT Article; Book Chapter
ID CREOSOTE
C1 [Cheremisinoff, Nicholas P.] World Bank Org, Washington, DC USA.
[Cheremisinoff, Nicholas P.] US Agcy Int Dev, Washington, DC 20523 USA.
[Cheremisinoff, Nicholas P.] US DOE, Washington, DC 20585 USA.
RP Cheremisinoff, NP (reprint author), World Bank Org, Washington, DC USA.
NR 16
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-1-4377-7833-5; 978-0-08-096446-1
PY 2010
BP 43
EP 81
DI 10.1016/B978-0-08-096446-1.10003-6
PG 39
WC Engineering, Environmental; Materials Science, Paper & Wood
SC Engineering; Materials Science
GA BIB08
UT WOS:000327194200004
ER
PT B
AU Cheremisinoff, NP
Rosenfeld, PE
AF Cheremisinoff, Nicholas P.
Rosenfeld, Paul E.
BA Cheremisinoff, NP
Rosenfeld, PE
BF Cheremisinoff, NP
Rosenfeld, PE
TI Air pollution from wood treatment
SO HANDBOOK OF POLLUTION PREVENTION AND CLEANER PRODUCTION, VOL 2: BEST
PRACTICES IN THE WOOD AND PAPER INDUSTRIES
LA English
DT Article; Book Chapter
ID DIBENZO-P-DIOXINS; TREATED WOOD; COMBUSTION
C1 [Cheremisinoff, Nicholas P.] World Bank Org, Washington, DC USA.
[Cheremisinoff, Nicholas P.] US Agcy Int Dev, Washington, DC 20523 USA.
[Cheremisinoff, Nicholas P.] US DOE, Washington, DC 20585 USA.
RP Cheremisinoff, NP (reprint author), World Bank Org, Washington, DC USA.
NR 14
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-1-4377-7833-5; 978-0-08-096446-1
PY 2010
BP 83
EP 134
DI 10.1016/B978-0-08-096446-1.10004-8
PG 52
WC Engineering, Environmental; Materials Science, Paper & Wood
SC Engineering; Materials Science
GA BIB08
UT WOS:000327194200005
ER
PT B
AU Cheremisinoff, NP
Rosenfeld, PE
AF Cheremisinoff, Nicholas P.
Rosenfeld, Paul E.
BA Cheremisinoff, NP
Rosenfeld, PE
BF Cheremisinoff, NP
Rosenfeld, PE
TI Pollution prevention and best practices for the wood-preserving industry
SO HANDBOOK OF POLLUTION PREVENTION AND CLEANER PRODUCTION, VOL 2: BEST
PRACTICES IN THE WOOD AND PAPER INDUSTRIES
LA English
DT Article; Book Chapter
C1 [Cheremisinoff, Nicholas P.] World Bank Org, Washington, DC USA.
[Cheremisinoff, Nicholas P.] US Agcy Int Dev, Washington, DC 20523 USA.
[Cheremisinoff, Nicholas P.] US DOE, Washington, DC 20585 USA.
RP Cheremisinoff, NP (reprint author), World Bank Org, Washington, DC USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-1-4377-7833-5; 978-0-08-096446-1
PY 2010
BP 135
EP 178
DI 10.1016/B978-0-08-096446-1.10005-X
PG 44
WC Engineering, Environmental; Materials Science, Paper & Wood
SC Engineering; Materials Science
GA BIB08
UT WOS:000327194200006
ER
PT B
AU Cheremisinoff, NP
Rosenfeld, PE
AF Cheremisinoff, Nicholas P.
Rosenfeld, Paul E.
BA Cheremisinoff, NP
Rosenfeld, PE
BF Cheremisinoff, NP
Rosenfeld, PE
TI Sources of air emissions from pulp and paper mills
SO HANDBOOK OF POLLUTION PREVENTION AND CLEANER PRODUCTION, VOL 2: BEST
PRACTICES IN THE WOOD AND PAPER INDUSTRIES
LA English
DT Article; Book Chapter
ID 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN TCDD; ACUTE TOXICITY; WORKERS;
FORMALDEHYDE; RATS; INGESTION; TOLUENE; CHLORITE; BENZENE; CANCER
C1 [Cheremisinoff, Nicholas P.] World Bank Org, Washington, DC USA.
[Cheremisinoff, Nicholas P.] US Agcy Int Dev, Washington, DC 20523 USA.
[Cheremisinoff, Nicholas P.] US DOE, Washington, DC 20585 USA.
RP Cheremisinoff, NP (reprint author), World Bank Org, Washington, DC USA.
NR 110
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-1-4377-7833-5; 978-0-08-096446-1
PY 2010
BP 179
EP 259
DI 10.1016/B978-0-08-096446-1.10006-1
PG 81
WC Engineering, Environmental; Materials Science, Paper & Wood
SC Engineering; Materials Science
GA BIB08
UT WOS:000327194200007
ER
PT B
AU Cheremisinoff, NP
Rosenfeld, PE
AF Cheremisinoff, Nicholas P.
Rosenfeld, Paul E.
BA Cheremisinoff, NP
Rosenfeld, PE
BF Cheremisinoff, NP
Rosenfeld, PE
TI Pollution prevention and best practices for the pulp and paper industry
SO HANDBOOK OF POLLUTION PREVENTION AND CLEANER PRODUCTION, VOL 2: BEST
PRACTICES IN THE WOOD AND PAPER INDUSTRIES
LA English
DT Article; Book Chapter
C1 [Cheremisinoff, Nicholas P.] World Bank Org, Washington, DC USA.
[Cheremisinoff, Nicholas P.] US Agcy Int Dev, Washington, DC 20523 USA.
[Cheremisinoff, Nicholas P.] US DOE, Washington, DC 20585 USA.
RP Cheremisinoff, NP (reprint author), World Bank Org, Washington, DC USA.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU WILLIAM ANDREW INC
PI NORWICH
PA 13 EATON AVE, NORWICH, NY 13815 USA
BN 978-1-4377-7833-5; 978-0-08-096446-1
PY 2010
BP 261
EP 291
DI 10.1016/B978-0-08-096446-1.10007-3
PG 31
WC Engineering, Environmental; Materials Science, Paper & Wood
SC Engineering; Materials Science
GA BIB08
UT WOS:000327194200008
ER
PT J
AU Alberi, K
Yu, KM
Walukiewicz, W
AF Alberi, K.
Yu, K. M.
Walukiewicz, W.
BE Chen, WM
Buyanova, IA
TI Electronic Structure and Lattice Site Location of Mn in III-Mn-V
Ferromagnetic Semiconductors
SO HANDBOOK OF SPINTRONIC SEMICONDUCTORS
LA English
DT Article; Book Chapter
ID MOLECULAR-BEAM EPITAXY; DILUTED MAGNETIC SEMICONDUCTORS; LOW-TEMPERATURE
GAAS; CURIE-TEMPERATURE; T-C; GA1-XMNXAS; TRANSPORT; (GA,MN)AS; LAYERS;
MN)AS
AB We present here a review of our experimental and theoretical works leading to our current understanding of the factors affecting ferromagnetic coupling between Mn spins in group III-Mn-V ferromagnetic semiconductors. The significance of the interstitial Mn defects, the Fermi level controlled incorporation of substitutional Mn atoms and the maximum hole concentration were established by a series of experiments with different material structures and processing. Our results indicate that any improvement in the magnetic properties of this material system will require decoupling of the doping process from the introduction of magnetic moments. We have also shown that the electronic structure of the Mn impurity band can be described in terms of a band anticrossing model. The model explains hole transport properties and the effect of alloying on the magnetic properties of group III-Mn-As. Moreover, it can also be used to predict trends in the magnetic properties of other ternary and dilute quaternary III-Mn-V semiconductors.
C1 [Alberi, K.; Yu, K. M.; Walukiewicz, W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Alberi, K (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
EM w_walukiewicz@lbl.gov
NR 72
TC 0
Z9 0
U1 0
U2 0
PU PAN STANFORD PUBLISHING PTE LTD
PI SINGAPORE
PA PENTHOUSE LEVEL, SUNTEC TOWER 3, 8 TEMASEK BLVD, SINGAPORE, 038988,
SINGAPORE
BN 978-9-81426-767-0
PY 2010
BP 123
EP 155
PG 33
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Engineering; Materials Science; Physics
GA BUD99
UT WOS:000288982900005
ER
PT J
AU Stone, PR
Dubon, OD
AF Stone, Peter R.
Dubon, Oscar D.
BE Chen, WM
Buyanova, IA
TI Ga1-xMnxP Synthesized by Ion Implantation and Pulsed-Laser Melting
SO HANDBOOK OF SPINTRONIC SEMICONDUCTORS
LA English
DT Article; Book Chapter
ID MOLECULAR-BEAM EPITAXY; RAY CIRCULAR-DICHROISM; MAGNETIC-ANISOTROPY;
THIN-FILMS; FERROMAGNETIC SEMICONDUCTORS; MAGNETOTRANSPORT PROPERTIES;
ELECTRONIC-STRUCTURE; HOLE CONCENTRATION; CURIE-TEMPERATURE;
ROOM-TEMPERATURE
AB The synthesis of single-crystalline epitaxial thin films of the carrier-mediated ferromagnetic phase of Ga1-xMnxP and Ga1-xMnxP-based quaternary alloys using ion implantation and pulsed-laser melting (II-PLM) has allowed for the exploration of the effect of anion substitution on ferromagnetism in Ga1-xMnx-pnictide systems. Despite displaying significantly greater hole localization than the canonical Ga1-xMnxAs system many of the properties, including the dependence of the Curie temperature on x and hole concentration, X-ray absorption spectroscopy and magnetic circular dichroism lineshapes, and manipulation of the magnetic anisotropy by carrier concentration and epitaxial strain, are substantially similar in the two materials. Furthermore, the combination of far infrared photoconductivity and THz spectroscopy indicates that the carriers responsible for ferromagnetic exchange are localized within an impurity band that remains unmerged with the GaP valence band for at least x <= 0.042. These remarkable findings suggest that ferromagnetism in III1-xMnxV materials exists on a continuum in terms of carrier localization and that localized carriers primarily of cation d character are capable of effectively mediating ferromagnetic exchange.
C1 [Stone, Peter R.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Stone, PR (reprint author), Univ Calif Berkeley, Dept Mat Sci & Engn, 210 HMMB 1760, Berkeley, CA 94720 USA.
EM oddubon@berkeley.edu
OI Scarpulla, Michael/0000-0002-6084-6839; Yu, Kin Man/0000-0003-1350-9642
NR 83
TC 3
Z9 3
U1 0
U2 0
PU PAN STANFORD PUBLISHING PTE LTD
PI SINGAPORE
PA PENTHOUSE LEVEL, SUNTEC TOWER 3, 8 TEMASEK BLVD, SINGAPORE, 038988,
SINGAPORE
BN 978-9-81426-767-0
PY 2010
BP 157
EP 180
PG 24
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Engineering; Materials Science; Physics
GA BUD99
UT WOS:000288982900006
ER
PT J
AU Ozer, MM
Zeng, CG
Weitering, HH
AF Oezer, Mustafa M.
Zeng, Changgan
Weitering, Hanno H.
BE Chen, WM
Buyanova, IA
TI Magnetic Doping of Group IV Semiconductors
SO HANDBOOK OF SPINTRONIC SEMICONDUCTORS
LA English
DT Article; Book Chapter
ID ELECTRICAL SPIN INJECTION; FERROMAGNETIC SEMICONDUCTOR; TEMPERATURE
FERROMAGNETISM; TRANSPORT-PROPERTIES; EPITAXIAL-GROWTH;
MAGNETORESISTANCE; TRANSITION; SPINTRONICS; MNXGE1-X; EXCHANGE
AB This review addresses recent developments in the general area of group IV dilute magnetic semiconductors (DMS), focusing on fundamental physics issues as well as the promises and limitations of the actual materials from an experimentalist's perspective. This class of materials is of strategic significance in developing a spin-based information technology that will be compatible with the existing silicon platform. The fundamental physics issues surrounding the mechanisms of electrical transport and magnetism in group IV DMS revolve around the weak-coupling versus strong-coupling pictures of ferromagnetic exchange, the presence of delocalized valence-band holes versus impurity-band carriers, and the nature of the ferromagnetic transition. Materials issues revolve around the solid solubility of Mn dopants, spinodal decomposition, substitutional versus interstitial incorporation of the magnetic dopants, formation of superparamagnetic precipitates, magneto-resistance, transport percolation and the true nature of the observed magnetic order. This review specifically focuses on Mn-doped germanium grown via conventional molecular beam epitaxy. New developments such as the use of surfactants and n-type co-dopants will be highlighted as promising avenues for future research.
C1 [Oezer, Mustafa M.; Weitering, Hanno H.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Zeng, Changgan] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China.
[Weitering, Hanno H.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
RP Ozer, MM (reprint author), Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
EM hanno@utk.edu
NR 87
TC 2
Z9 2
U1 0
U2 3
PU PAN STANFORD PUBLISHING PTE LTD
PI SINGAPORE
PA PENTHOUSE LEVEL, SUNTEC TOWER 3, 8 TEMASEK BLVD, SINGAPORE, 038988,
SINGAPORE
BN 978-9-81426-767-0
PY 2010
BP 193
EP 223
PG 31
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Engineering; Materials Science; Physics
GA BUD99
UT WOS:000288982900008
ER
PT B
AU Ginley, DS
Perkins, JD
AF Ginley, David S.
Perkins, John D.
BE Ginley, DS
Hosono, H
Paine, DC
TI Transparent Conductors
SO HANDBOOK OF TRANSPARENT CONDUCTORS
LA English
DT Article; Book Chapter
ID ZNO THIN-FILMS; P-TYPE ZNO; AMORPHOUS OXIDE SEMICONDUCTOR;
ROOM-TEMPERATURE FABRICATION; PULSED-LASER DEPOSITION;
LIGHT-EMITTING-DIODES; WIDE-BAND-GAP; ELECTRICAL-CONDUCTION;
SOLAR-CELLS; PROGRESS
C1 [Ginley, David S.; Perkins, John D.] Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA.
RP Ginley, DS (reprint author), Natl Renewable Energy Lab, Natl Ctr Photovolta, Mail Stop 3211,1617 Cole Blvd, Golden, CO 80401 USA.
EM david_ginley@nrel.gov
NR 81
TC 28
Z9 28
U1 0
U2 4
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-1-4419-1637-2
PY 2010
BP 1
EP 25
DI 10.1007/978-1-4419-1638-9_1
D2 10.1007/978-1-4419-1638-9
PG 25
WC Engineering, Electrical & Electronic
SC Engineering
GA BRT58
UT WOS:000283631100001
ER
PT B
AU Coutts, TJ
Young, DL
Gessert, TA
AF Coutts, Timothy J.
Young, David L.
Gessert, Timothy A.
BE Ginley, DS
Hosono, H
Paine, DC
TI Modeling, Characterization, and Properties of Transparent Conducting
Oxides
SO HANDBOOK OF TRANSPARENT CONDUCTORS
LA English
DT Article; Book Chapter
ID STATES EFFECTIVE-MASS; THIN-FILMS; ENERGY BANDS; TRANSPORT PHENOMENA;
IRREVERSIBLE-PROCESSES; ELECTRICAL PROPERTIES; SCATTERING PARAMETER;
RECIPROCAL RELATIONS; STANNIC OXIDE; ZNO
C1 [Coutts, Timothy J.; Young, David L.] Natl Renewable Energy Lab, Natl Ctr Photovolta Silicon Mat & Devices, Golden, CO 80401 USA.
[Gessert, Timothy A.] NREL Natl Ctr Photovolta, Golden, CO 80401 USA.
RP Coutts, TJ (reprint author), Natl Renewable Energy Lab, Natl Ctr Photovolta Silicon Mat & Devices, 1617 Cole Blvd,MS 3219, Golden, CO 80401 USA.
EM david_young@nrel.gov; Tim.Gessert@nrel.gov
NR 76
TC 12
Z9 12
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-1-4419-1637-2
PY 2010
BP 51
EP 110
DI 10.1007/978-1-4419-1638-9_3
D2 10.1007/978-1-4419-1638-9
PG 60
WC Engineering, Electrical & Electronic
SC Engineering
GA BRT58
UT WOS:000283631100003
ER
PT B
AU Paine, DC
Yaglioglu, B
Berry, J
AF Paine, David C.
Yaglioglu, Burag
Berry, Joseph
BE Ginley, DS
Hosono, H
Paine, DC
TI Characterization of TCO Materials
SO HANDBOOK OF TRANSPARENT CONDUCTORS
LA English
DT Article; Book Chapter
ID THIN-FILM TRANSISTORS; DOPED INDIUM OXIDE; ELECTRON-DIFFRACTION; STRESS
EVOLUTION; PHYSICAL-PROPERTIES; LOW-TEMPERATURE; ZINC-OXIDE; PARAMETERS;
IN2O3
C1 [Paine, David C.] Brown Univ, Div Engn, Providence, RI 02912 USA.
[Yaglioglu, Burag] Plast Log Ltd, Cambridge CB4 0WD, England.
[Berry, Joseph] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Paine, DC (reprint author), Brown Univ, Div Engn, Box D, Providence, RI 02912 USA.
EM David_Paine@brown.edu; buragy@gmail.com; David_Paine@brown.edu
NR 29
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-1-4419-1637-2
PY 2010
BP 111
EP 148
DI 10.1007/978-1-4419-1638-9_4
D2 10.1007/978-1-4419-1638-9
PG 38
WC Engineering, Electrical & Electronic
SC Engineering
GA BRT58
UT WOS:000283631100004
ER
PT B
AU Olson, DC
Ginley, DS
AF Olson, Dana C.
Ginley, David S.
BE Ginley, DS
Hosono, H
Paine, DC
TI Nanostructured TCOs (ZnO, TiO2, and Beyond)
SO HANDBOOK OF TRANSPARENT CONDUCTORS
LA English
DT Article; Book Chapter
ID HETEROJUNCTION SOLAR-CELLS; LIGHT-EMITTING-DIODES; OPEN-CIRCUIT VOLTAGE;
INDIUM-TIN-OXIDE; HYBRID PHOTOVOLTAIC DEVICES; PULSED-LASER DEPOSITION;
CARBON NANOTUBE FILMS; THIN-FILMS; CONJUGATED POLYMER; WORK-FUNCTION
C1 [Olson, Dana C.] Natl Renewable Energy Lab, Natl Ctr Photovolta, Golden, CO 80401 USA.
[Ginley, David S.] NREL SERF W102, Golden, CO 80401 USA.
RP Olson, DC (reprint author), Natl Renewable Energy Lab, Natl Ctr Photovolta, 1617 Cole Blvd, Golden, CO 80401 USA.
EM dana.olson@nrel.gov; david_ginley@nrel.gov
NR 166
TC 0
Z9 0
U1 0
U2 3
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-1-4419-1637-2
PY 2010
BP 425
EP 457
DI 10.1007/978-1-4419-1638-9_12
D2 10.1007/978-1-4419-1638-9
PG 33
WC Engineering, Electrical & Electronic
SC Engineering
GA BRT58
UT WOS:000283631100012
ER
PT S
AU Bolotnikov, AE
Camarda, GS
Cui, Y
Egarievwe, SU
Fochuk, PM
Fuerstnau, M
Gul, R
Hossain, A
Jones, F
Kim, K
Kopach, OV
Taggart, R
Yang, G
Ye, Z
Xu, L
James, RB
AF Bolotnikov, A. E.
Camarda, G. S.
Cui, Y.
Egarievwe, S. U.
Fochuk, P. M.
Fuerstnau, M.
Gul, R.
Hossain, A.
Jones, F.
Kim, K.
Kopach, O. V.
Taggart, R.
Yang, G.
Ye, Z.
Xu, L.
James, R. B.
BE Burger, A
Franks, LA
James, RB
TI Array of virtual Frisch-grid CZT detectors with common cathode readout
and pulse-height correction
SO HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XII
CY AUG 02-04, 2010
CL San Diego, CA
SP SPIE
DE CdZnTe detectors; virtual Frisch-grid detectors; crystal defects
ID CDZNTE DETECTORS
AB We present our new results from testing 15-mm-long virtual Frisch-grid CdZnTe detectors with a common-cathode readout for correcting pulse-height distortions. The array employs parallelepiped-shaped CdZnTe (CZT) detectors of a large geometrical aspect ratio, with two planar contacts on the top and bottom surfaces (anode and cathode) and an additional shielding electrode on the crystal's sides to create the virtual Frisch-grid effect. We optimized the geometry of the device and improved its spectral response. We found that reducing to 5 mm the length of the shielding electrode placed next to the anode had no adverse effects on the device's performance. At the same time, this allowed corrections for electron loss by reading the cathode signals to obtain depth information.
C1 [Bolotnikov, A. E.; Camarda, G. S.; Cui, Y.; Fochuk, P. M.; Fuerstnau, M.; Gul, R.; Hossain, A.; Jones, F.; Kim, K.; Kopach, O. V.; Taggart, R.; Yang, G.; Ye, Z.; Xu, L.; James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Bolotnikov, AE (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
RI Yang, Ge/G-1354-2011; Fochuk, Petro/D-9409-2016; Kopach,
Oleh/C-3993-2017
OI Fochuk, Petro/0000-0002-4149-4882; Kopach, Oleh/0000-0002-1513-5261
NR 11
TC 1
Z9 1
U1 1
U2 5
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8301-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7805
AR 780504
DI 10.1117/12.861775
PG 12
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU46
UT WOS:000285827000003
ER
PT S
AU Cherepy, NJ
Kuntz, JD
Seeley, ZM
Fisher, SE
Drury, OB
Sturm, BW
Hurst, TA
Sanner, RD
Roberts, JJ
Payne, SA
AF Cherepy, N. J.
Kuntz, J. D.
Seeley, Z. M.
Fisher, S. E.
Drury, O. B.
Sturm, B. W.
Hurst, T. A.
Sanner, R. D.
Roberts, J. J.
Payne, S. A.
BE Burger, A
Franks, LA
James, RB
TI Transparent Ceramic Scintillators for Gamma Spectroscopy and Radiography
SO HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XII
CY AUG 02-04, 2010
CL San Diego, CA
SP SPIE
DE Scintillators; garnets; bixbyites; transparent ceramics; gamma ray
spectrometers; radiography scintillators
ID LUTETIUM ALUMINUM GARNET; FLAME SPRAY-PYROLYSIS; RESOLUTION
AB Transparent ceramics combine the scintillation performance of single crystals with the ruggedness and processability of glass. We have developed a versatile, scaleable fabrication method, wherein nanoparticle feedstock is consolidated at temperatures well below melting to form inch-scale phase-pure transparent ceramics with optical scatter of alpha <0.1 cm(-1). We have fabricated Cerium-doped Gadolinium Garnets with light yields of similar to 50,000 Ph/MeV and energy resolution of <5% at 662 keV. We have also developed methods to form sheets of the high-Z ceramic scintillator, Europium-doped Lutetium Oxide Bixbyite, producing similar to 75,000 Ph/MeV for radiographic imaging applications.
C1 [Cherepy, N. J.; Kuntz, J. D.; Seeley, Z. M.; Fisher, S. E.; Drury, O. B.; Sturm, B. W.; Hurst, T. A.; Sanner, R. D.; Roberts, J. J.; Payne, S. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Cherepy, NJ (reprint author), Lawrence Livermore Natl Lab, 700 East Ave, Livermore, CA 94550 USA.
EM cherepy1@llnl.gov
RI Cherepy, Nerine/F-6176-2013
OI Cherepy, Nerine/0000-0001-8561-923X
NR 16
TC 6
Z9 6
U1 3
U2 24
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8301-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7805
AR 78050I
DI 10.1117/12.862503
PG 5
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU46
UT WOS:000285827000007
ER
PT S
AU Duff, MC
Lynn, KG
Jones, K
Soundararajan, R
Bradley, JP
Ishii, H
Aguiar, J
Wozniakiewicz, P
AF Duff, Martine C.
Lynn, Kelvin G.
Jones, Kelly
Soundararajan, Rajeswari
Bradley, John P.
Ishii, Hope
Aguiar, Jeffery
Wozniakiewicz, Penny
BE Burger, A
Franks, LA
James, RB
TI Characterization of Secondary Phases and Other Defects in CdZnTe
SO HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XII
CY AUG 02-04, 2010
CL San Diego, CA
SP SPIE
DE Modified vertical Bridgman; transmission electron microscopy; carbon;
calcite; transmission IR imaging
ID RADIATION DETECTOR APPLICATIONS; TRAVELING HEATER METHOD; SEMIINSULATING
CDZNTE; CRYSTALS; CDTE; GROWTH
AB Semiconducting CdZnTe or "CZT" crystals are very suitable for use as a room temperature-based gamma radiation spectrometer. During the last decade, modifications in growth methods for CZT have significantly improved the quality of the produced crystals however there are material features that can influence the performance of these materials as radiation detectors. For example, various structural heterogeneities within the CZT crystals, such as, pipes, voids, polycrystallinity, and secondary phases (SP) can have a negative impact on the detector performance. In this study, a CZT material was grown by the modified vertical Bridgman growth (MVB) method with zone leveled growth in the absence of excess Te in the melt. Numerous SP were imaged using transmission IR at a volume % of 0.002. Samples from this material were analyzed using various analytical techniques to evaluate its electrical properties, purity and detector performance as radiation spectrometers and to determine the morphology, dimension and elemental /structural composition of one of the SP in this material. This material was found to have a high resistivity and good radiation spectrometer performance. It had SPs that were rich in calcium (Ca), carbon (C) and oxygen (O) (possibly CaCO(3)) or only C and O that were 5 mu m or less in diameter.
C1 [Duff, Martine C.] Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Duff, MC (reprint author), Savannah River Natl Lab, Aiken, SC 29808 USA.
EM martine.duff@srnl.doe.gov
OI Aguiar, Jeffery/0000-0001-6101-4762
NR 17
TC 2
Z9 2
U1 0
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8301-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7805
AR 780503
DI 10.1117/12.862379
PG 17
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU46
UT WOS:000285827000002
ER
PT S
AU Kim, KH
Bolotnikov, AE
Camarda, GS
Marchini, L
Yang, G
Hossain, A
Cui, Y
Xu, L
James, RB
AF Kim, K. H.
Bolotnikov, A. E.
Camarda, G. S.
Marchini, L.
Yang, G.
Hossain, A.
Cui, Y.
Xu, L.
James, R. B.
BE Burger, A
Franks, LA
James, RB
TI Detector Performance of Ammonium-Sulfide-Passivated CdZnTe and CdMnTe
Materials
SO HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XII
CY AUG 02-04, 2010
CL San Diego, CA
SP SPIE
DE Passivation; CdZnTe; CdMnTe; ammonium sulfide; leakage current
AB Dark currents, including those in the surface and bulk, are the leading source of electronic noise in X-ray and gamma detectors, and are responsible for degrading a detector's energy resolution. The detector material itself determines the bulk leakage current; however, the surface leakage current is controllable by depositing appropriate passivation layers. In previous research, we demonstrated the effectiveness of surface passivation in CZT (CdZnTe) and CMT (CdMnTe) materials using ammonium sulfide and ammonium fluoride. In this research, we measured the effect of such passivation on the surface states of these materials, and on the performances of detectors made from them.
C1 [Kim, K. H.; Bolotnikov, A. E.; Camarda, G. S.; Marchini, L.; Yang, G.; Hossain, A.; Cui, Y.; Xu, L.; James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Kim, KH (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM khkim@bnl.gov
RI Yang, Ge/G-1354-2011
NR 8
TC 1
Z9 1
U1 1
U2 7
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8301-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7805
AR 78051U
DI 10.1117/12.861543
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU46
UT WOS:000285827000038
ER
PT S
AU Nikolic, RJ
Conway, AM
Radev, R
Shao, Q
Voss, L
Wang, TF
Brewer, JR
Cheung, CL
Fabris, L
Britton, CL
Ericson, MN
AF Nikolic, R. J.
Conway, A. M.
Radev, R.
Shao, Q.
Voss, L.
Wang, T. F.
Brewer, J. R.
Cheung, C. L.
Fabris, L.
Britton, C. L.
Ericson, M. N.
BE Burger, A
Franks, LA
James, RB
TI Nine Element Si-based Pillar Structured Thermal Neutron Detector
SO HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XII
CY AUG 02-04, 2010
CL San Diego, CA
SP SPIE
DE Thermal neutron detector; pillar; boron
ID (10)BORON
AB Solid state thermal neutron detectors are desirable for replacing the current (3)He based technology, which has some limitations arising from stability, sensitivity to microphonics and the recent shortage of (3)He. Our approach to designing such solid state detectors is based on the combined use of high aspect ratio silicon PIN pillars surrounded by (10)B, the neutron converter material. To date, our highest measured detection efficiency is 20%. An efficiency of greater than 50% is expected while maintaining high gamma rejection, low power operation and fast timing for multiplicity counting for our engineered device architecture. The design of our device structure, progress towards a nine channel system and detector scaling challenges are presented.
C1 [Nikolic, R. J.; Conway, A. M.; Radev, R.; Shao, Q.; Voss, L.; Wang, T. F.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Nikolic, RJ (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM nikolic1@llnl.gov
RI Shao, Qinghui/A-1756-2013; Cheung, Chin Li/B-8270-2013; Ericson,
Milton/H-9880-2016
OI Ericson, Milton/0000-0002-6628-4865
NR 19
TC 4
Z9 4
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8301-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7805
AR 78050O
DI 10.1117/12.862391
PG 9
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU46
UT WOS:000285827000011
ER
PT S
AU Xu, J
Lee, SH
Bell, ZW
Smith, B
Zhang, XG
Ju, T
Chen, AJ
Pan, ZW
AF Xu, Jun
Lee, Sang Hyun
Bell, Zane W.
Smith, Barton
Zhang, X. -G.
Ju, Tong
Chen, An-Jen
Pan, Zhengwei
BE Burger, A
Franks, LA
James, RB
TI Study of Charge Transport Mechanisms in ZnO-ZnTe Nanojunctions
SO HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XII
CY AUG 02-04, 2010
CL San Diego, CA
SP SPIE
DE Radiation sensing; Charge transport; Nanojunctions; ZnO; ZnTe;
Nanocones; Nanorods; Photovoltaic
ID NANOWIRE; ARRAYS
AB Improved carrier transport is crucial for enhancing the performance of semiconductor devices such as radiation detectors. Conventionally, semiconductor devices employ planar p-n junctions in which carrier loss occurs mostly in the p-type and n-type diffusion regions. In a nanoscale three-dimensional (3-D) junction, the carriers can be efficiently collected cross the nanostructure by electric field distribution without trapping in the p-n regions. In addition, a nanocone junction should further improve carrier transport properties because this structure can be tailored to be completely depleted. In this work, we studied carrier transport mechanisms in nanojunctions made of vertically aligned ZnO nanostructures and ZnTe matrix using theoretical and experimental methods.
C1 [Xu, Jun; Lee, Sang Hyun; Bell, Zane W.; Smith, Barton; Zhang, X. -G.; Ju, Tong] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Xu, J (reprint author), Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA.
EM xuj2@ornl.gov
OI Bell, Zane/0000-0003-1115-8674
NR 7
TC 2
Z9 3
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8301-0
J9 PROC SPIE
PY 2010
VL 7805
AR 78050Z
DI 10.1117/12.865607
PG 7
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU46
UT WOS:000285827000018
ER
PT S
AU Xu, L
Bolotnikov, AE
Hossain, A
Kim, KH
Gul, R
Yang, G
Camarda, GS
Marchini, L
Cui, Y
James, RB
Xu, Y
Wang, T
Jie, W
AF Xu, L.
Bolotnikov, A. E.
Hossain, A.
Kim, K-H.
Gul, R.
Yang, G.
Camarda, G. S.
Marchini, L.
Cui, Y.
James, R. B.
Xu, Y.
Wang, T.
Jie, W.
BE Burger, A
Franks, LA
James, RB
TI Extended defects in as-grown CdZnTe
SO HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XII
CY AUG 02-04, 2010
CL San Diego, CA
SP SPIE
DE As-grown CdZnTe; Extended defects; IR; WBXDT; Leakage current; Energy
spectrum; Defect distribution
ID CADMIUM ZINC TELLURIDE; RADIATION DETECTORS; PERFORMANCE; CRYSTALS
AB We characterized samples cut from different locations in as-grown CdZnTe (CZT) ingots, using Automated Infrared (IR) Transmission Microscopy and White Beam X-ray Diffraction Topography (WBXDT), to locate and identify the extended defects in them. Our goal was to define the distribution of these defects throughout the entire ingot and their effects on detectors' performance as revealed by the pulse-height spectrum. We found the highest-and the lowest-concentration of Te inclusions, respectively, in the head and middle part of the ingot, which could serve as guidance in selecting samples. Crystals with high concentration of Te inclusions showed high leakage current and poor performance, because the accumulated charge loss around trapping centers associated with Te inclusions distorts the internal electric field, affects the carrier transport properties inside the crystal, and finally degrades the detector's performance. In addition, other extended defects revealed by the WBXDT measurements severely reduced the detector's performance, since they trap large numbers of electrons, leading to a low signal for the pulse-height spectrum, or none whatsoever. Finally, we fully correlated the detector's performance with our information on the extended defects gained from both the IR- and the WBXDT-measurements.
C1 [Xu, L.; Bolotnikov, A. E.; Hossain, A.; Kim, K-H.; Gul, R.; Yang, G.; Camarda, G. S.; Marchini, L.; Cui, Y.; James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Xu, L (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
RI Yang, Ge/G-1354-2011
NR 14
TC 0
Z9 0
U1 1
U2 10
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8301-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7805
AR 78051O
DI 10.1117/12.860731
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU46
UT WOS:000285827000034
ER
PT S
AU Yang, G
Bolotnikov, AE
Fochuk, PM
Camarda, GS
Cui, Y
Hossain, A
Kim, K
Horace, J
McCall, B
Gul, R
Xu, L
Kopach, OV
James, RB
AF Yang, G.
Bolotnikov, A. E.
Fochuk, P. M.
Camarda, G. S.
Cui, Y.
Hossain, A.
Kim, K.
Horace, J.
McCall, B.
Gul, R.
Xu, L.
Kopach, O. V.
James, R. B.
BE Burger, A
Franks, LA
James, RB
TI Study on thermal annealing of cadmium zinc telluride (CZT) crystals
SO HARD X-RAY, GAMMA-RAY, AND NEUTRON DETECTOR PHYSICS XII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Hard X-Ray, Gamma-Ray and Neutron Detector Physics XII
CY AUG 02-04, 2010
CL San Diego, CA
SP SPIE
DE radiation detection; CZT; annealing; Te inclusions; dislocations
ID RADIATION DETECTORS; PERFORMANCE; GROWTH
AB Cadmium Zinc Telluride (CZT) has attracted increasing interest with its promising potential as a room-temperature nuclear-radiation-detector material. However, different defects in CZT crystals, especially Te inclusions and dislocations, can degrade the performance of CZT detectors. Post-growth annealing is a good approach potentially to eliminate the deleterious influence of these defects. At Brookhaven National Laboratory (BNL), we built up different facilities for investigating post-growth annealing of CZT. Here, we report our latest experimental results. Cd-vapor annealing reduces the density of Te inclusions, while large temperature gradient promotes the migration of small-size Te inclusions. Simultaneously, the annealing lowers the density of dislocations. However, only-Cd-vapor annealing decreases the resistivity, possibly reflecting the introduction of extra Cd in the lattice. Subsequent Te-vapor annealing is needed to ensure the recovery of the resistivity after removing the Te inclusions.
C1 [Yang, G.; Bolotnikov, A. E.; Fochuk, P. M.; Camarda, G. S.; Cui, Y.; Hossain, A.; Kim, K.; Horace, J.; McCall, B.; Gul, R.; Xu, L.; Kopach, O. V.; James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Yang, G (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM gyang@bnl.gov
RI Yang, Ge/G-1354-2011; Fochuk, Petro/D-9409-2016; Kopach,
Oleh/C-3993-2017
OI Fochuk, Petro/0000-0002-4149-4882; Kopach, Oleh/0000-0002-1513-5261
NR 5
TC 0
Z9 0
U1 2
U2 7
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8301-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7805
AR 780507
DI 10.1117/12.861372
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BSU46
UT WOS:000285827000004
ER
PT J
AU Vallero, D
Isukapalli, S
Zartarian, V
McCurdy, T
McKone, T
Georgopoulos, P
Dary, C
AF Vallero, Daniel
Isukapalli, Sastry
Zartarian, Valerie
McCurdy, Thomas
McKone, Tom
Georgopoulos, Panos
Dary, Curt
BE Krieger, R
TI Modeling and Predicting Pesticide Exposures
SO HAYES' HANDBOOK OF PESTICIDE TOXICOLOGY, VOLS 1 AND 2, 3RD EDITION
LA English
DT Article; Book Chapter
ID CHILDRENS RESIDENTIAL EXPOSURE; LABELED WATER MEASUREMENTS; ASSESSMENT
SURVEY NHEXAS; RESPONSE-SURFACE METHOD; DAILY INHALATION RATES; ARSENIC
EXPOSURE; DOSE ASSESSMENT; RISK-ASSESSMENT; PHARMACOKINETIC MODELS;
BIOLOGICAL-SYSTEMS
C1 [Vallero, Daniel; Zartarian, Valerie; McCurdy, Thomas; Dary, Curt] US EPA, Natl Exposure Res Lab, Res Triangle Pk, NC 27711 USA.
[Dary, Curt] US EPA, Las Vegas, NV 89119 USA.
[Isukapalli, Sastry; Georgopoulos, Panos] Environm & Occupat Hlth Sci Inst, Piscataway, NJ USA.
[McKone, Tom] Lawrence Berkeley Natl Labs, Berkeley, CA USA.
RP Vallero, D (reprint author), US EPA, Natl Exposure Res Lab, Res Triangle Pk, NC 27711 USA.
NR 119
TC 2
Z9 2
U1 0
U2 1
PU ELSEVIER ACADEMIC PRESS INC
PI SAN DIEGO
PA 525 B STREET, SUITE 1900, SAN DIEGO, CA 92101-4495 USA
BN 978-0-08-092201-0
PY 2010
BP 995
EP 1020
DI 10.1016/B978-0-12-374367-1.00044-6
PG 26
WC Toxicology
SC Toxicology
GA BCS50
UT WOS:000311281800047
ER
PT B
AU Timchalk, C
AF Timchalk, Charles
BE Krieger, R
TI Organophosphorus Insecticide Pharmacokinetics
SO HAYES' HANDBOOK OF PESTICIDE TOXICOLOGY, VOLS 1 AND 2, 3RD EDITION
LA English
DT Article; Book Chapter
ID PHARMACODYNAMIC PBPK/PD MODEL; HEALTH RISK ASSESSMENT;
PERCUTANEOUS-ABSORPTION; ADULT-RATS; PHARMACOKINETIC/PHARMACODYNAMIC
MODEL; CHOLINESTERASE INHIBITION; PARTITION-COEFFICIENTS; OCCUPATIONAL
EXPOSURE; HAZARDOUS SUBSTANCES; TISSUE DISTRIBUTION
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Timchalk, C (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
NR 101
TC 2
Z9 2
U1 1
U2 1
PU ELSEVIER ACADEMIC PRESS INC
PI SAN DIEGO
PA 525 B STREET, SUITE 1900, SAN DIEGO, CA 92101-4495 USA
BN 978-0-08-092201-0; 978-0-12-374367-1
PY 2010
BP 1409
EP 1433
DI 10.1016/B978-0-12-374367-1.00066-5
PG 25
WC Toxicology
SC Toxicology
GA BCS50
UT WOS:000311281800069
ER
PT S
AU Hatchell, B
Mauss, F
Santiago-Rojas, E
Amaya, I
Skorpik, J
Silvers, K
Marotta, S
AF Hatchell, Brian
Mauss, Fred
Santiago-Rojas, Emiliano
Amaya, Ivan
Skorpik, Jim
Silvers, Kurt
Marotta, Steve
BE Kundu, T
TI Missile captive carry monitoring using a capacitive MEMS accelerometer
SO HEALTH MONITORING OF STRUCTURAL AND BIOLOGICAL SYSTEMS 2010, PTS 1 AND 2
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Health Monitoring of Structural and Biological Systems
2010
CY MAR 08-11, 2010
CL San Diego, CA
SP SPIE, Amer Soc Mech Engineers
DE Health and usage monitoring; ambient vibration; MEMS; accelerometer
AB Military missiles are exposed to many sources of mechanical vibration that can affect system reliability, safety, and mission effectiveness. One of the most significant exposures to vibration occurs when the missile is being carried by an aviation platform, which is a condition known as captive carry. If the duration of captive carry exposure could be recorded during the missile's service life, several advantages could be realized. Missiles that have been exposed to durations outside the design envelop could be flagged or screened for maintenance or inspection; lightly exposed missiles could be selected for critical mission applications; and missile allocation to missions could be based on prior use to avoid overuse. The U. S. Army Aviation and Missile Research Development and Engineering Center (AMRDEC) has been developing health monitoring systems to assess and improve reliability of missiles during storage and field exposures. Under the direction of AMRDEC staff, engineers at the Pacific Northwest National Laboratory have developed a Captive Carry Health Monitor (CCHM) for the HELLFIRE II missile. The CCHM is an embedded usage monitoring device installed on the outer skin of the HELLFIRE II missile to record the cumulative hours the host missile has been in captive carry mode and thereby assess the overall health of the missile. This paper provides an overview of the CCHM electrical and package design, describes field testing and data analysis techniques used to identify captive carry, and discusses the potential application of missile health and usage data for real-time reliability analysis and fleet management.
C1 [Hatchell, Brian; Mauss, Fred; Santiago-Rojas, Emiliano; Amaya, Ivan; Skorpik, Jim; Silvers, Kurt] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Hatchell, B (reprint author), Pacific NW Natl Lab, POB 999,902 Battelle Blvd, Richland, WA 99352 USA.
NR 6
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8065-1
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7650
AR 76501A
DI 10.1117/12.846005
PG 10
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BSR53
UT WOS:000285545600041
ER
PT S
AU Park, G
Figueiredo, E
Farinholt, KM
Farrar, CR
AF Park, Gyuhae
Figueiredo, Eloi
Farinholt, Kevin M.
Farrar, Charles R.
BE Kundu, T
TI Time Series Predictive Models of Piezoelectric Active-Sensing for SHM
Applications
SO HEALTH MONITORING OF STRUCTURAL AND BIOLOGICAL SYSTEMS 2010, PTS 1 AND 2
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Health Monitoring of Structural and Biological Systems
2010
CY MAR 08-11, 2010
CL San Diego, CA
SP SPIE, Amer Soc Mech Engineers
DE SHM; Time series analysis; piezoelectric; Composites
ID COMPOSITE STRUCTURES; DAMAGE DETECTION; IDENTIFICATION; VALIDATION;
JOINTS
AB In this paper, the use of time domain data from piezoelectric active-sensing techniques is investigated for structural health monitoring (SHM) applications. Piezoelectric transducers have been increasingly used in SHM because of their proven advantages. Especially, the use of known and repeatable inputs at high frequency ranges makes the development of SHM signal processing algorithm easier and more efficient. However, to date, most of these techniques have been based on frequency domain analyses, such as impedance-based or high-frequency response functions (FRF) -based SHM techniques. Even with Lamb wave propagations, most researchers adopt frequency domain or wavelets analysis for damage-sensitive feature extraction. This process usually requires excessive averaging to reduce measurement noise and more computational resources, which is not ideal from both memory and power consumption standpoints. Therefore in this study, we investigate the use of autoregressive models with exogenous inputs (ARX) with the measured time series data from piezoelectric active-sensors. The test structure considered in this study is a composite plate, where several damage conditions were manually imposed. The performance of this technique is compared to that of traditional autoregressive models, traditionally used in low-frequency passive sensing SHM applications, and that of FRF-based analysis, and its superior capability for SHM is demonstrated.
C1 [Park, Gyuhae; Figueiredo, Eloi; Farinholt, Kevin M.; Farrar, Charles R.] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87545 USA.
RP Park, G (reprint author), Los Alamos Natl Lab, Engn Inst, POB 1663, Los Alamos, NM 87545 USA.
EM gpark@lanl.gov
RI Farrar, Charles/C-6954-2012;
OI Figueiredo, Eloi/0000-0002-9168-6903; Farrar,
Charles/0000-0001-6533-6996
NR 26
TC 1
Z9 1
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8065-1
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7650
AR 765004
DI 10.1117/12.847690
PG 12
WC Optics; Radiology, Nuclear Medicine & Medical Imaging
SC Optics; Radiology, Nuclear Medicine & Medical Imaging
GA BSR53
UT WOS:000285545600003
ER
PT J
AU Robison, WL
Hamilton, TF
AF Robison, William L.
Hamilton, Terry F.
TI RADIATION DOSES FOR MARSHALL ISLANDS ATOLLS AFFECTED BY US NUCLEAR
TESTING: ALL EXPOSURE PATHWAYS, REMEDIAL MEASURES, AND ENVIRONMENTAL
LOSS OF Cs-137
SO HEALTH PHYSICS
LA English
DT Article
DE Cs-137; contamination, environmental; dose assessment; Marshall Islands
ID TEST-SITE; RESETTLEMENT OPTIONS; BIKINI ATOLL; PB-210; PO-210; DIET;
FOOD
AB Radiation doses calculated for people resettling Bikini Island at Bikini Atoll, Enjebi Island at Enewetak Atoll, Rongelap Island at Rongelap Atoll, and Utrok Island at Utrok Atoll are presented. Residence is assumed to begin in 2010. In previous dose assessments it was shown that Cs-137 accounts for about 98% of the total dose for returning residents. About 85 to 90% (depending on the atoll) is via consumption of locally grown foods containing Cs-137, and about 10 to 15% is due to external exposure from Cs-137 in the soil. These assessments were made using only the radiological half-life Of Cs-137 (30.1 y). We have shown since that there is an environmental loss of Cs-137 from soil to groundwater that results in a more rapid loss Of Cs-131 from the atoll ecosystem. The mean effective half-life of Cs-137 at the atolls is 8.5 y. Moreover, treatment of coconut trees with potassium (K) reduces Cs-137 concentration in drinking coconut meat at Bikini Atoll to about 5% of pretreatment concentrations. The magnitude of reduction is dependent on the concentration Of Cs-137 in soil, and thereby in food crops, and is less for Enjebi and Rongelap Islands than for Bikini Island. Treatment of food crops and fruit trees with K and removal of the top 15 cm of soil around houses and community buildings prior to construction to reduce external exposure where people spend most of their time has been presented to the communities as a "Combined Option" remediation strategy. Doses presented here are calculated using the Combined Option, effective half-life, of Cs-137 at the atolls, and a diet of both imported and local foods. The average natural background dose in the Marshall Islands, plus the anthropogenic nuclear test-related dose at Bikini, Enjebi, and Rongelap Islands, is less for each of the islands than the average background dose in the U.S. and Europe. Health Phys. 98(1):1-11; 2010
C1 [Robison, William L.; Hamilton, Terry F.] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
RP Robison, WL (reprint author), Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, 7000 E Ave,L-453, Livermore, CA 94550 USA.
EM robison1@llnl.gov
FU U.S. Department of Energy [W-7405-Eng-48, DE-AC52-07NA27344]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory in part under Contract
W-7405-Eng-48 and in part under Contract DE-AC52-07NA27344.
NR 47
TC 7
Z9 7
U1 6
U2 15
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD JAN
PY 2010
VL 98
IS 1
BP 1
EP 11
DI 10.1097/HP.0b013e3181b9dbd3
PG 11
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 531RL
UT WOS:000272685400001
PM 19959945
ER
PT J
AU Wilson, DA
Mohr, LC
Frey, GD
Lackland, D
Hoel, DG
AF Wilson, Dulaney A.
Mohr, Lawrence C.
Frey, G. Donald
Lackland, Daniel
Hoel, David G.
TI LUNG, LIVER AND BONE CANCER MORTALITY AFTER PLUTONIUM EXPOSURE IN BEAGLE
DOGS AND NUCLEAR WORKERS
SO HEALTH PHYSICS
LA English
DT Article
DE dogs; nuclear workers; plutonium; risk analysis
ID REPEATED INHALATION EXPOSURE; RIVER DOSIMETRY SYSTEM; FORMER
SOVIET-UNION; MAYAK WORKERS; INHALED (PUO2)-PU-239; HUMANS; RADIATION;
RISK; MODEL; RETENTION
AB The Mayak Production Association (MPA) worker registry has shown evidence of plutonium-induced health effects. Workers were potentially exposed to plutonium nitrate [Pu-239(NO3)(4)] and plutonium dioxide ((PuO2)-Pu-239). Studies of plutonium-induced health effects in animal models can complement human studies by providing more specific data than is possible in human observational studies. Lung, liver, and bone cancer mortality rate ratios in the MPA worker cohort were compared to those seen in beagle dogs, and models of the excess relative risk of lung, liver, and bone cancer mortality from the MPA worker cohort were applied to data from life-span studies of beagle dogs. The lung cancer mortality rate ratios in beagle dogs are similar to those seen in the MPA worker cohort. At cumulative doses less than 3 Gy, the liver cancer mortality rate ratios in the MPA worker cohort are statistically similar to those in beagle dogs. Bone cancer mortality only occurred in MPA workers with doses over 10 Gy. In dogs given Pu-239, the adjusted excess relative risk of lung cancer mortality per Gy was 1.32 (95% CI 0.56-3.22). The liver cancer mortality adjusted excess relative risk per Gy was 55.3 (95% CI 23.0-133.1). The adjusted excess relative risk of bone cancer mortality per Gy(2) was 1,482 (95% CI 566.0-5686). Models of lung cancer mortality based on MPA worker data with additional covariates adequately described the beagle dog data, while the liver and bone cancer models were less successful. Health Phys. 98(1):42-52; 2010
C1 [Wilson, Dulaney A.; Lackland, Daniel; Hoel, David G.] Med Univ S Carolina, Dept Biostat Bioinformat & Epidemiol, Charleston, SC 29425 USA.
[Wilson, Dulaney A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Mohr, Lawrence C.] Med Univ S Carolina, Environm Biosci Program, Charleston, SC 29425 USA.
[Frey, G. Donald] Med Univ S Carolina, Dept Radiol, Charleston, SC 29425 USA.
[Hoel, David G.] Exponent Inc, Alexandria, VA USA.
RP Wilson, DA (reprint author), Med Univ S Carolina, Dept Biostat Bioinformat & Epidemiol, 135 Cannon St, Charleston, SC 29425 USA.
EM Dulaney.Wilson@pnl.gov
OI Wilson, Dulaney/0000-0003-4726-7848
NR 52
TC 4
Z9 5
U1 0
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD JAN
PY 2010
VL 98
IS 1
BP 42
EP 52
DI 10.1097/HP.0b013e3181b97318
PG 11
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 531RL
UT WOS:000272685400006
PM 19959950
ER
PT J
AU Levitskaia, TG
Morris, JE
Creim, JA
Woodstock, AD
Luders, T
Curry, TL
Thrall, KD
AF Levitskaia, Tatiana G.
Morris, James E.
Creim, Jeffrey A.
Woodstock, Angela D.
Luders, Teresa
Curry, Terry L.
Thrall, Karla D.
TI AMINOTHIOL RECEPTORS FOR DECORPORATION OF INTRAVENOUSLY ADMINISTERED
Co-60 IN THE RAT
SO HEALTH PHYSICS
LA English
DT Article
DE Co-60; contamination; exposure, internal; radiological terrorism
ID GLUTATHIONE; COMPLEXES; TOXICITY; COBALT; PARAMETER; EXCRETION; METALS;
VALUES
AB This report provides a comparison of the oral decorporation efficacy of L-glutathione (GSH), L-cysteine (Cys), and a liposomal GSH formulation (ReadiSorb) toward systemic Co-60 to that observed following intravenous administration of GSH and Cys in F344 rats. Aminoacid L-histidine (His) containing no thiol functionality was tested intravenously to compare in vivo efficacy of the aminothiol (GSH, Cys) chelators with that of the aminoimidazole (His) chelator. In these studies, Co-60 was administered to animals by intravenous injection, followed by intravenous or oral gavage doses of a chelator repeated at 24-h intervals for a total of 5 doses. The results suggest that GSH and Cys are potent decorporation agents for Co-60 in the rat model, although the efficacy of treatment depends largely on the systemic availability of the chelator. The intravenous route of administration of GSH or Cys was most effective in reducing tissue Co-60 levels and in increasing excretion of radioactivity compared to control animals. Liposomal encapsulation was found to markedly enhance the oral bioavailability of GSH compared to non-formulated GSH. The oral administration of liposomal GSH reduced Co-60 levels in nearly all tissues by 12-43% compared to that observed for non-formulated GSH. Efficacy of oral Cys was only slightly reduced in comparison with intravenous Cys. Further studies to optimize the dosing regimen in order to maximize decorporation efficiency are warranted. Health Phys. 98(1):53-60; 2010
C1 [Levitskaia, Tatiana G.; Morris, James E.; Creim, Jeffrey A.; Woodstock, Angela D.; Luders, Teresa; Curry, Terry L.; Thrall, Karla D.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Levitskaia, TG (reprint author), Pacific NW Natl Lab, POB 999,MSIN P7-25, Richland, WA 99352 USA.
EM tatiana.levitskaia@pnl.gov
FU U.S. Department of Energy [DE-AC05-76RL01830]; National Institute of
Allergy and Infectious Diseases [1R01A1074067-01]
FX Acknowledgments-This research was supported by the Laboratory Directed
Research and Development Program at Pacific Northwest National
Laboratory operated by Battelle for the U.S. Department of Energy under
Contract DE-AC05-76RL01830 and by the National Institute of Allergy and
Infectious Diseases, Project Bioshield No 1R01A1074067-01.
NR 29
TC 5
Z9 5
U1 0
U2 1
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD JAN
PY 2010
VL 98
IS 1
BP 53
EP 60
DI 10.1097/HP.0b013e3181b9dbbc
PG 8
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 531RL
UT WOS:000272685400007
PM 19959951
ER
PT J
AU Guilmette, RA
Parkhurst, MA
AF Guilmette, Raymond A.
Parkhurst, Mary Ann
TI COMMENT ON THE CAPSTONE DEPLETED URANIUM (DU) AEROSOL CHARACTERIZATION
AND RISK ASSESSMENT STUDY RESPONSE TO LYKKEN AND MOMCILOVIC
SO HEALTH PHYSICS
LA English
DT Letter
C1 [Guilmette, Raymond A.] Lovelace Resp Res Inst, Albuquerque, NM 87108 USA.
[Parkhurst, Mary Ann] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Guilmette, RA (reprint author), Lovelace Resp Res Inst, 2425 Ridgecrest Dr SE, Albuquerque, NM 87108 USA.
EM rguilmette@LRRI.org; maryann.parkhurst@pnl.gov
NR 3
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD JAN
PY 2010
VL 98
IS 1
BP 77
EP 78
PG 2
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 531RL
UT WOS:000272685400011
ER
PT J
AU Chyu, MK
Alvin, MA
AF Chyu, Minking K.
Alvin, Mary Anne
TI Turbine Airfoil Aerothermal Characteristics in Future Coal Gas-Based
Power Generation Systems
SO HEAT TRANSFER RESEARCH
LA English
DT Article
DE turbine airfoil; heat transfer; clean coal
AB Most promising operating cycles being developed for future coal-gas-based systems are hydrogen-fired cycle and oxy-fuel cycle. Both cycles will likely have turbine working fluids significantly different from those of conventional air-based gas turbines. The oxy-fuel cycle, with steam and CO(2) as a primary working fluid in the turbine section, will have a turbine inlet temperature target at approximately 1750 degrees C, significantly higher than the current level of utility turbine systems. Described in this paper is a CFD-based simulation of the transport phenomena around the gas side of a turbine airfoil under realistic operating conditions of future coal gas-based systems. The relatively high concentration of steam in the oxy-fuel turbine leads to approximately 40% higher heat transfer coefficient on the airfoil external surface than its hydrogen-fired counterpart. This suggests that advances in cooling technology and thermal barrier coatings (TBC) are critical for the developments of future coal-based turbine systems. To further explore this issue, a comparative study on the internal cooling effectiveness between a double-wall or skin-cooled arrangement and an equivalent serpentine-cooled configuration is performed. The contribution of thermal barrier coatings (TBC) toward overall thermal protection for turbine airfoil cooled under these two different cooling configurations is also evaluated.
C1 [Chyu, Minking K.] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA.
[Alvin, Mary Anne] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
RP Chyu, MK (reprint author), Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA.
EM mkchyu@pitt.edu
NR 8
TC 15
Z9 15
U1 1
U2 2
PU BEGELL HOUSE INC
PI REDDING
PA 50 CROSS HIGHWAY, REDDING, CT 06896 USA
SN 1064-2285
J9 HEAT TRANSF RES
JI Heat Transf. Res.
PY 2010
VL 41
IS 7
SI 2
BP 737
EP 752
PG 16
WC Thermodynamics
SC Thermodynamics
GA 731KF
UT WOS:000288104400003
ER
PT S
AU Jessulat, M
Buist, T
Alamigir, M
Hooshyar, M
Xu, JH
Aoki, H
Ganoza, MC
Butland, G
Golshani, A
AF Jessulat, Matthew
Buist, Terry
Alamigir, Md
Hooshyar, Mohsen
Xu, Jianhua
Aoki, Hiroyuki
Ganoza, M. Clelia
Butland, Gareth
Golshani, Ashkan
BE Abdelhaleem, MM
TI In Vivo Investigation of Protein-Protein Interactions for Helicases
Using Tandem Affinity Purification
SO HELICASES: METHODS AND PROTOCOLS
SE Methods in Molecular Biology
LA English
DT Article; Book Chapter
DE Helicase; protein-protein interaction; tandem affinity purification;
homologous recombination; RNA/DNA secondary structures
ID COMPLEX PURIFICATION; SYSTEM
AB A key component in determining the functional role of any protein is the elucidation of its binding partners using protein-protein interaction (PPI) data. Here we examine the use of tandem affinity purification (TAP) tagging to study RNA/DNA helicase PPIs in Escherichia coli. The tag, which consists of a calmodulin-binding region, a TEV protease recognition sequence, and an IgG-binding domain, is introduced into E. coli using a lambda red recombination system. This method prevents the overproduction Of the target protein, which could generate false interactions. The interacting proteins are then affinity purified using double affinity purification steps and are seperated by SDS-PAGE followed by mass spectrometry identification. Each protein identified would represent a physical interaction in the cell. These interactions may potentially be mediated by an RNA/DNA template, for which the helicase would likely be needed to disrupt the secondary structures.
C1 [Jessulat, Matthew; Buist, Terry; Alamigir, Md; Hooshyar, Mohsen; Golshani, Ashkan] Carleton Univ, Dept Biol, Ottawa, ON K1S 5B6, Canada.
[Jessulat, Matthew; Buist, Terry; Alamigir, Md; Hooshyar, Mohsen; Golshani, Ashkan] Carleton Univ, Ottawa Inst Syst Biol, Ottawa, ON K1S 5B6, Canada.
[Xu, Jianhua; Aoki, Hiroyuki; Ganoza, M. Clelia] Univ Toronto, Banting & Best Dept Med Res, Toronto, ON, Canada.
[Butland, Gareth] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Jessulat, M (reprint author), Carleton Univ, Dept Biol, Ottawa, ON K1S 5B6, Canada.
NR 14
TC 2
Z9 2
U1 0
U2 0
PU HUMANA PRESS INC
PI TOTOWA
PA 999 RIVERVIEW DR, STE 208, TOTOWA, NJ 07512-1165 USA
SN 1064-3745
BN 978-1-60327-354-1
J9 METHODS MOL BIOL
JI Methods Mol. Biol.
PY 2010
VL 587
BP 99
EP 111
DI 10.1007/978-1-60327-355-8_7
D2 10.1007/978-1-60327-355-8
PG 13
WC Biochemical Research Methods; Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA BNM27
UT WOS:000274938900007
PM 20225144
ER
PT J
AU Kozachenko, AP
Shablykin, OV
Gakh, AA
Rusanov, EB
Brovarets, VS
AF Kozachenko, Alexander P.
Shablykin, Oleg V.
Gakh, Andrei A.
Rusanov, Eduard B.
Brovarets, Vladimir S.
TI Synthesis of New Heterocyclic System of
4,5,7,8-Tetrahydroimidazo[1,2-c][1,3] thiazolo [4,5-e][1,3,2]
diazaphosphinine Starting from 2-Aroylamino-3,3-dichloroacrylonitrile
SO HETEROATOM CHEMISTRY
LA English
DT Article
ID DERIVATIVES; AMINES; NITRILES; ADAN
AB Easily accessible 2-aroylamino-3,3-dichloroacrylonitriles, when treated successively with ethylenediamine, phosphorus pentasulfide, water, and methyl and benzyl halides, furnish the corresponding derivatives of 4,5,7,8-tetrahydroimidazo[1,2-c] [1,3] thiazolo[4,5-e][1,3,2] diazaphosphinine, a novel-fused heterocycle. The structure of the compounds obtained is unequivocally confirmed by the spectroscopic method and X-ray diffraction analysis. (C) 2010 Wiley Periodicals, Inc. Heteroatom Chem 21:492-498, 2010; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.20638
C1 [Kozachenko, Alexander P.; Shablykin, Oleg V.; Brovarets, Vladimir S.] Natl Acad Sci Ukraine, Inst Bioorgan Chem & Petrochem, Kiev, Ukraine.
[Gakh, Andrei A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Rusanov, Eduard B.] Natl Acad Sci Ukraine, Inst Organ Chem, Kiev, Ukraine.
RP Brovarets, VS (reprint author), Natl Acad Sci Ukraine, Inst Bioorgan Chem & Petrochem, Kiev, Ukraine.
EM brovarets@bpci.kiev.ua
OI Rusanov, Eduard/0000-0002-7678-0985
FU Global IPP through the Science and Technology Center in Ukraine; U.S.
Department of Energy [DE-AC05-00OR22725]
FX This research was supported by the Global IPP program through the
Science and Technology Center in Ukraine. Oak Ridge National Laboratory
is managed and operated by UT-Battelle, LLC, under U.S. Department of
Energy contract DE-AC05-00OR22725. This paper is a contribution from the
Discovery Chemistry Project.
NR 22
TC 3
Z9 3
U1 0
U2 6
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 1042-7163
J9 HETEROATOM CHEM
JI Heteroatom Chem.
PY 2010
VL 21
IS 7
BP 492
EP 498
DI 10.1002/hc.20638
PG 7
WC Chemistry, Multidisciplinary
SC Chemistry
GA 678HG
UT WOS:000284064100006
ER
PT S
AU Kim, JY
George, SM
AF Kim, Jay Yu
George, Steven M.
BE Greene, LE
Sherif, RA
TI Tin Monosulfide Thin Films Grown by Atomic Layer Deposition Using Tin
2,4-Pentanedionate and Hydrogen Sulfide
SO HIGH AND LOW CONCENTRATOR SYSTEMS FOR SOLAR ELECTRIC APPLICATIONS V
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On High and Low Concentrator Systems for Solar Electric
Applications V
CY AUG 03-04, 2010
CL San Diego, CA
SP SPIE
DE Tin sulfide; atomic layer deposition; thin film; quartz crystal
microbalance; optical bandgap; photoluminescence
ID CHEMICAL-VAPOR-DEPOSITION; LUMINESCENT SOLAR CONCENTRATORS;
SURFACE-CHEMISTRY; ENERGY CONVERSION; TIN(II) SULFIDE; SNS FILMS;
EPITAXY; CELLS; SEMICONDUCTORS; GLASS
AB Tin monosulfide (SnS) was grown by atomic layer deposition (ALD) using sequential exposures of tin(II) 2,4-pentanedionate (Sn(acac)(2)) and hydrogen sulfide (H(2)S). In situ quartz crystal microbalance (QCM) studies showed that the SnS ALD mass gain per cycle was 11-12 ng/cm(2) at 175 degrees C on a gold-covered QCM sensor. Using a film density of 5.07 g/cm(3) determined by X-ray reflectivity measurements, these mass gains are equivalent to SnS ALD growth rates of 0.22-0.24 angstrom/cycle. The ratio of the mass loss and mass gain ratio (vertical bar Delta m(2)/Delta m(1)vertical bar) from the H(2)S and Sn(acac)(2) reactions was vertical bar Delta m(2)/Delta m(1)| similar to 0.32 at 175 degrees C. This measured ratio is close to the predicted ratio from the proposed surface chemistry for SnS ALD. The SnS ALD was self-limiting versus the Sn(acac)(2) and H(2)S exposures. The SnS ALD growth rate was also independent of substrate temperature from 125-225 degrees C. X-ray fluorescence studies confirmed a Sn/S atomic ratio of similar to 1.0 for the SnS ALD films. X-ray photoelectron spectroscopy measurements revealed that the SnS ALD films contained oxygen impurities at 15-20 at% after air exposure. These oxygen-containing SnS ALD films displayed a bandgap of similar to 1.87 eV that is higher than the SnS bulk value of similar to 1.3 eV.
C1 [Kim, Jay Yu; George, Steven M.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
RP Kim, JY (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM Jay.Kim@nrel.gov
RI George, Steven/O-2163-2013
OI George, Steven/0000-0003-0253-9184
NR 49
TC 0
Z9 0
U1 2
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8265-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7769
AR 776907
DI 10.1117/12.855890
PG 13
WC Energy & Fuels; Optics
SC Energy & Fuels; Optics
GA BSU58
UT WOS:000285829900005
ER
PT S
AU Raman, RN
Negres, RA
DeMange, P
Demos, SG
AF Raman, Rajesh N.
Negres, Raluca A.
DeMange, Paul
Demos, Stavros G.
BE Davis, SJ
Heaven, MC
Schriempf, JT
TI Time-resolved imaging of material response following laser-induced
breakdown in the bulk and surface of fused silica
SO HIGH ENERGY/AVERAGE POWER LASERS AND INTENSE BEAM APPLICATIONS IV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on High Energy/Average Power Lasers and Intense Beam
Applications IV
CY JAN 25-26, 2010
CL San Francisco, CA
SP SPIE
DE Time-resolved imaging; microscopy; fused silica; damage initiation;
surface damage; bulk damage
AB Optical components within high energy laser systems are susceptible to laser-induced material modification when the breakdown threshold is exceeded or damage is initiated by pre-existing impurities or defects. These modifications are the result of exposure to extreme conditions involving the generation of high temperatures and pressures and occur on a volumetric scale of the order of a few cubic microns. The response of the material following localized energy deposition, including the timeline of events and the individual processes involved during this timeline, is still largely unknown.
In this work, we investigate the events taking place during the entire timeline in both bulk and surface damage in fused silica using a set of time-resolved microscopy systems. These microscope systems offer up to 1 micron spatial resolution when imaging static or dynamic effects, allowing for imaging of the entire process with adequate temporal and spatial resolution. These systems incorporate various pump-probe geometries designed to optimize the sensitivity for detecting individual aspects of the process such as the propagation of shock waves, near-surface material motion, the speed of ejecta, and material transformations. The experimental results indicate that the material response can be separated into distinct phases, some terminating within a few tens of nanoseconds but some extending up to about 100 microseconds. Overall the results demonstrate that the final characteristics of the modified region depend on the material response to the energy deposition and not on the laser parameters.
C1 [Raman, Rajesh N.; Negres, Raluca A.; DeMange, Paul; Demos, Stavros G.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Raman, RN (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94551 USA.
NR 13
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7977-8
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7581
AR 75810D
DI 10.1117/12.842301
PG 11
WC Optics; Physics, Applied
SC Optics; Physics
GA BSS14
UT WOS:000285579400011
ER
PT S
AU Wilcox, RB
Byrd, JM
Doolittle, LR
Huang, G
Staples, JW
AF Wilcox, R. B.
Byrd, J. M.
Doolittle, L. R.
Huang, G.
Staples, J. W.
BE Davis, SJ
Heaven, MC
Schriempf, JT
TI A 20fs synchronization system for lasers and cavities in accelerators
and FELs
SO HIGH ENERGY/AVERAGE POWER LASERS AND INTENSE BEAM APPLICATIONS IV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on High Energy/Average Power Lasers and Intense Beam
Applications IV
CY JAN 25-26, 2010
CL San Francisco, CA
SP SPIE
DE timing distribution; RF-over-fiber; phase stabilized link
ID FREQUENCY-STABILITY
AB A fiber-optic RF distribution system has been developed for synchronizing lasers and RF plants in short pulse FELs. Typical requirements are 50-100fs rms over time periods from 1ms to several hours. Our system amplitude modulates a CW laser signal, senses fiber length using an interferometer, and feed-forward corrects the RF phase digitally at the receiver. We demonstrate less than 15fs rms error over 12 hours, between two independent channels with a fiber path length difference of 200m and transmitting S-band RF. The system is constructed using standard telecommunications components, and uses regular telecom fiber.
C1 [Wilcox, R. B.; Byrd, J. M.; Doolittle, L. R.; Huang, G.; Staples, J. W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Wilcox, RB (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
RI Huang, Gang/I-7772-2013
NR 9
TC 1
Z9 1
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7977-8
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7581
AR 75810O
DI 10.1117/12.846253
PG 8
WC Optics; Physics, Applied
SC Optics; Physics
GA BSS14
UT WOS:000285579400022
ER
PT J
AU Glenzer, SH
Lee, HJ
Davis, P
Doppner, T
Falcone, RW
Fortmann, C
Hammel, BA
Kritcher, AL
Landen, OL
Lee, RW
Munro, DH
Redmer, R
Weber, S
AF Glenzer, S. H.
Lee, H. J.
Davis, P.
Doeppner, T.
Falcone, R. W.
Fortmann, C.
Hammel, B. A.
Kritcher, A. L.
Landen, O. L.
Lee, R. W.
Munro, D. H.
Redmer, R.
Weber, S.
TI Dense plasma X-ray scattering: Methods and applications
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Review
DE Warm dense matter; Plasma diagnostic; Thomson scattering; Plasmons
ID EQUATION-OF-STATE; NATIONAL IGNITION FACILITY; THOMSON SCATTERING;
MATTER; MODEL
AB We have developed accurate x-ray scattering techniques to measure the physical properties of dense plasmas. Temperature and density are inferred from inelastic x-ray scattering data whose interpretation is model-independent for low to moderately coupled systems. Specifically, the spectral shape of the non-collective Compton scattering spectrum directly reflects the electron velocity distribution. In partially Fermi-degenerate systems that have been investigated experimentally in laser shock-compressed beryllium, the Compton scattering spectrum provides the Fermi energy and hence the electron density. We show that forward scattering spectra that observe collective plasmon oscillations yield densities in agreement with non-collective Compton scattering. In addition, electron temperatures inferred from the dispersion of the plasmon feature are consistent with the ion temperature sensitive elastic scattering feature. Hence, theoretical models of the static ion-ion structure factor and consequently the equation of state of dense matter can be directly tested. Published by Elsevier Ltd.
C1 [Glenzer, S. H.; Doeppner, T.; Hammel, B. A.; Landen, O. L.; Lee, R. W.; Munro, D. H.; Weber, S.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Lee, H. J.; Davis, P.; Falcone, R. W.; Kritcher, A. L.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
[Fortmann, C.; Redmer, R.] Univ Rostock, Inst Phys, D-18051 Rostock, Germany.
RP Glenzer, SH (reprint author), Lawrence Livermore Natl Lab, L-399,POB 808, Livermore, CA 94551 USA.
EM glenzer1@llnl.gov
RI Redmer, Ronald/F-3046-2013
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; National Laboratory User Facility, Laboratory
Directed Research and Development [08-ERI-002, 08-LW-004]; Helmholtz
association [VH-VI-104]; Deutsche Forschungsgemeinschaft [SFB 652]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344. Also supported by the National Laboratory User
Facility, Laboratory Directed Research and Development grants 08-ERI-002
and 08-LW-004, by the Helmholtz association (VH-VI-104), and by the
Deutsche Forschungsgemeinschaft (SFB 652).
NR 41
TC 11
Z9 11
U1 2
U2 17
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JAN
PY 2010
VL 6
IS 1
BP 1
EP 8
DI 10.1016/j.hedp.2009.09.003
PG 8
WC Physics, Fluids & Plasmas
SC Physics
GA 660BW
UT WOS:000282614500001
ER
PT J
AU Toleikis, S
Faustlin, RR
Cao, L
Doppner, T
Dusterer, S
Forster, E
Fortmann, C
Glenzer, SH
Gode, S
Gregori, G
Irsig, R
Laarmann, T
Lee, HJ
Li, B
Mithen, J
Meiwes-Broer, KH
Przystawik, A
Radcliffe, P
Redmer, R
Tavella, F
Thiele, R
Tiggesbaumker, J
Truong, NX
Uschmann, I
Zastrau, U
Tschentscher, T
AF Toleikis, S.
Faeustlin, R. R.
Cao, L.
Doeppner, T.
Duesterer, S.
Foerster, E.
Fortmann, C.
Glenzer, S. H.
Goede, S.
Gregori, G.
Irsig, R.
Laarmann, T.
Lee, H. J.
Li, B.
Mithen, J.
Meiwes-Broer, K. -H.
Przystawik, A.
Radcliffe, P.
Redmer, R.
Tavella, F.
Thiele, R.
Tiggesbaeumker, J.
Truong, N. X.
Uschmann, I.
Zastrau, U.
Tschentscher, Th.
TI Soft X-ray scattering using FEL radiation for probing near-solid density
plasmas at few electron volt temperatures
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE Free-electron laser; Soft X-ray spectroscopy; Inelastic X-ray
scattering; Strongly-coupled plasmas; Ultrafast processes; Pump-probe
Experiments
ID THETA-PINCH PLASMA; EXTREME-ULTRAVIOLET; THOMSON SCATTERING; LASER;
MATTER
AB We report on soft X-ray scattering experiments on cryogenic hydrogen and simple metal samples. As a source of intense, ultrashort soft X-ray pulses we have used free-electron laser radiation at 92 eV photon energy from FLASH at DESY, Hamburg. X-ray pulses with energies up to 150 pi and durations 15-50 fs provide interaction with the sample leading simultaneously to plasma formation and scattering. Experiments exploiting both of these interactions have been carried out, using the same experimental setup. Firstly, recording of soft X-ray inelastic scattering from near-solid density hydrogen plasmas at few electron volt temperatures confirms the feasibility of this diagnostics technique. Secondly, the soft X-ray excitation of few electron volt solid-density plasmas in bulk metal samples could be studied by recording soft X-ray line and continuum emission integrated over emission times from fs to ns. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Tschentscher, Th.] European XFEL, DESY, Project Team, D-22607 Hamburg, Germany.
[Cao, L.; Foerster, E.; Fortmann, C.; Uschmann, I.; Zastrau, U.] Univ Jena, Inst Opt & Quantenelekt, D-07743 Jena, Germany.
[Doeppner, T.; Glenzer, S. H.] LLNL, Livermore, CA 94550 USA.
[Goede, S.; Irsig, R.; Meiwes-Broer, K. -H.; Przystawik, A.; Redmer, R.; Thiele, R.; Tiggesbaeumker, J.; Truong, N. X.] Univ Rostock, Inst Phys, D-18051 Rostock, Germany.
[Gregori, G.; Mithen, J.] Univ Oxford, Oxford OX1 3PU, England.
[Lee, H. J.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Li, B.] Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England.
RP Tschentscher, T (reprint author), European XFEL, DESY, Project Team, Notkestr 85, D-22607 Hamburg, Germany.
EM thomas.tschentscher@xfel.eu
RI Redmer, Ronald/F-3046-2013;
OI Thiele, Robert/0000-0001-8350-9942; Zastrau, Ulf/0000-0002-3575-4449
FU Helmholtz association [VH-VI-104]; German Federal Ministry for Education
and Research [FSP 301-FLASH]; Deutsche Forschungsgemeinschaft [SFB 652];
University Hamburg [GRK 1355]; Engineering and Physical Sciences
Research Council [EP/G007187/1]; Science and Technology Facilities
Council of the United Kingdom; U.S. Department of Energy by Lawrence
Livermore National Laboratory [DE-AC52-07NA27344]; Laboratory Directed
Research and Development [08-ERI-002, 08-LW-004]; European Community
[RII3-CT-2004-506008]
FX This work was initiated by the Virtual Institute Plasma Physics using
FEL radiation funded by the Helmholtz association under No. VH-VI-104
and is continued in the project FSP 301-FLASH funded by the German
Federal Ministry for Education and Research. University Rostock
acknowledges support by the Deutsche Forschungsgemeinschaft through the
SFB 652 and RRF received support for the spectrometer and simulation
codes from the GRK 1355 at University Hamburg. The work of GG, BL and JM
was supported in part by the Engineering and Physical Sciences Research
Council (Grant No. EP/G007187/1) and by the Science and Technology
Facilities Council of the United Kingdom. The work of TD and SHG was
performed under the auspices of the U.S. Department of Energy by
Lawrence Livermore National Laboratory under Contract No.
DE-AC52-07NA27344. Work was also supported by Laboratory Directed
Research and Development Grants No. 08-ERI-002 and No. 08-LW-004. The
provision of a CCD detector by D. Riley at QUB, U.K., and support for
access to FLASH by DESY and by the European Community under contract
RII3-CT-2004-506008 (IA-SFS) are gratefully acknowledged.
NR 32
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JAN
PY 2010
VL 6
IS 1
BP 15
EP 20
DI 10.1016/j.hedp.2009.06.012
PG 6
WC Physics, Fluids & Plasmas
SC Physics
GA 660BW
UT WOS:000282614500003
ER
PT J
AU Mancic, A
Robiche, J
Antici, P
Audebert, P
Blancard, C
Combis, P
Dorchies, F
Faussurier, G
Fourmaux, S
Harmand, M
Kodama, R
Lancia, L
Mazevet, S
Nakatsutsumi, M
Peyrusse, O
Recoules, V
Renaudin, P
Shepherd, R
Fuchs, J
AF Mancic, A.
Robiche, J.
Antici, P.
Audebert, P.
Blancard, C.
Combis, P.
Dorchies, F.
Faussurier, G.
Fourmaux, S.
Harmand, M.
Kodama, R.
Lancia, L.
Mazevet, S.
Nakatsutsumi, M.
Peyrusse, O.
Recoules, V.
Renaudin, P.
Shepherd, R.
Fuchs, J.
TI Isochoric heating of solids by laser-accelerated protons: Experimental
characterization and self-consistent hydrodynamic modeling
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE Laser-accelerated protons; Isochoric heating; Dense plasma; Equation of
state
ID X-RAY-EMISSION; TIME
AB A study of isochoric heating of Al foil by laser-accelerated proton beam is presented, coupling self-consistent hydrodynamic simulations (including proton stopping) with experimental measurements. The proton source that induces the heating has been characterized experimentally and the induced heating has been inferred through critical density expansion velocity measurement. The low-energy part of the proton spectrum that plays the dominant part in the heating process has been studied in detail. The experimental results are compared with the results of 1-dimensional hydrodynamic simulations that use as input the measured proton source and good agreement between the two is found using the SESAME EOS. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Mancic, A.; Robiche, J.; Audebert, P.; Lancia, L.; Nakatsutsumi, M.; Fuchs, J.] UPMC, CEA, CNRS, LULI,Ecole Polytech, F-91128 Palaiseau, France.
[Antici, P.] Univ Orsay, IOG, Ecole Polytech, ENSTA,ILE, Palaiseau, France.
[Antici, P.] Ist Nazl Fis Nucl, I-00044 Frascati, Italy.
[Blancard, C.; Combis, P.; Faussurier, G.; Mazevet, S.; Recoules, V.; Renaudin, P.] DIF, DAM, CEA, F-91297 Arpajon, France.
[Dorchies, F.; Harmand, M.; Peyrusse, O.] Univ Bordeaux, CNRS, CEA, CELIA, F-33405 Talence, France.
[Fourmaux, S.] INRS Energie & Mat, Varennes, PQ J3X 1S2, Canada.
[Kodama, R.] Osaka Univ, Grad Sch Engn, Suita, Osaka 5650871, Japan.
[Shepherd, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Mancic, A (reprint author), UPMC, CEA, CNRS, LULI,Ecole Polytech, Route Saclay, F-91128 Palaiseau, France.
EM ana.mancic@polytechnique.edu; julien.fuchs@polytechnique.fr
RI Harmand, Marion/J-6006-2012; Fuchs, Julien/D-3450-2016; harmand,
marion/Q-1248-2016; Kodama, Ryosuke/G-2627-2016
OI Fuchs, Julien/0000-0001-9765-0787; harmand, marion/0000-0003-0713-5824;
FU Region Ile-de-France [E1127]; Ministry of Science, Serbia [141034];
ANR-France [ANR-06-BLAN-0392]
FX We acknowledge the expert support from the technical groups at LULI.
This work was supported by the Grant No. E1127 from Region
Ile-de-France, by the Ministry of Science, Serbia (Project 141034) and
ANR-06-BLAN-0392 from ANR-France.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JAN
PY 2010
VL 6
IS 1
BP 21
EP 28
DI 10.1016/j.hedp.2009.06.008
PG 8
WC Physics, Fluids & Plasmas
SC Physics
GA 660BW
UT WOS:000282614500004
ER
PT J
AU More, R
Graziani, F
Glosli, J
Surh, M
AF More, Richard
Graziani, Frank
Glosli, Jim
Surh, Michael
TI Radiation in particle simulations
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE Particle simulation; Radiative processes; Fusion ignition; Radiation in
particle simulation; Lienard-Weichert; Electrodynamic normal modes
AB Hot dense radiative (HDR) plasmas common to Inertial Confinement Fusion (ICE) and stellar interiors have high temperature (a few hundred eV to tens of key), high density (tens to hundreds of g/cc) and high pressure (hundreds of megabars to thousands of gigabars). Typically, such plasmas undergo collisional, radiative, atomic and possibly thermonuclear processes. In order to describe HDR plasmas, computational physicists in ICF and astrophysics use atomic-scale microphysical models implemented in various simulation codes. Experimental validation of the models used to describe HDR plasmas are difficult to perform. Direct Numerical Simulation (DNS) of the many-body interactions of plasmas is a promising approach to model validation but, previous work either relies on the collisionless approximation or ignores radiation. We present four methods that attempt a new numerical simulation technique to address a currently unsolved problem: the extension of molecular dynamics to collisional plasmas including emission and absorption of radiation. The first method applies the Lienard-Weichert solution of Maxwell's equations for a classical particle whose motion is assumed to be known. The second method expands the electromagnetic field in normal modes (plane-waves in a box with periodic boundary conditions) and solves the equation for wave amplitudes coupled to the particle motion. The third method is a hybrid molecular dynamics/Monte Carlo (MD/MC) method which calculates radiation emitted or absorbed by electron-ion pairs during close collisions. The fourth method is a generalization of the third method to include small clusters of particles emitting radiation during close encounters: one electron simultaneously hitting two ions, two electrons simultaneously hitting one ion, etc. This approach is inspired by the virial expansion method of equilibrium statistical mechanics. Using a combination of these methods we believe it is possible to do atomic-scale particle simulations of fusion ignition plasmas including the important effects of radiation emission and absorption. (C) 2009 Elsevier B.V. All rights reserved.
C1 [More, Richard; Graziani, Frank; Glosli, Jim; Surh, Michael] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Graziani, F (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM graziani1@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; LLNL [09-SI-011]
FX The authors have usefully discussed the work of this paper with a number
of scientists, especially including Drs. Takako Kato, Kimitaka Itoh and
Katsunobu Nishihara, Michael Murillo, John Castor, Jon Weisheit and
Lorin Benedict. The work performed under the auspices of the U.S.
Department of Energy by Lawrence Livermore National Laboratory under
Contract DE-AC52-07NA27344. This work was funded by the Laboratory
Directed Research and Development Program at LLNL under project tracking
code 09-SI-011.
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PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JAN
PY 2010
VL 6
IS 1
BP 29
EP 38
DI 10.1016/j.hedp.2009.07.002
PG 10
WC Physics, Fluids & Plasmas
SC Physics
GA 660BW
UT WOS:000282614500005
ER
PT J
AU Scott, HA
Hansen, SB
AF Scott, H. A.
Hansen, S. B.
TI Advances in NLTE modeling for integrated simulations
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE Non-LTE; Radiation transport
ID HYDROGENIC ION MODEL; ELECTRON-IMPACT; SCREENING COEFFICIENTS;
CROSS-SECTIONS; PLASMAS; IONIZATION; RECOMBINATION; EXCITATION;
WORKSHOP; ATOMS
AB The last few years have seen significant progress in constructing the atomic models required for non-local thermodynamic equilibrium (NLTE) simulations. Along with this has come an increased understanding of the requirements for accurately modeling the ionization balance, energy content and radiative properties of different atomic species for a wide range of densities and temperatures. Much of this progress is the result of a series of workshops dedicated to comparing the results from different codes and computational approaches applied to a series of test problems. The results of these workshops emphasized the importance of atomic model completeness, especially in doubly-excited states and autoionization transitions, to calculating ionization balance, and the importance of accurate, detailed atomic data to producing reliable spectra.
We describe a simple screened-hydrogenic model that calculates NLTE ionization balance with sufficient accuracy, at a low enough computational cost for routine use in radiation-hydrodynamics codes. The model incorporates term splitting, Delta n = 0 transitions, and approximate UTA widths for spectral calculations, with results comparable to those of much more detailed codes. Simulations done with this model have been increasingly successful at matching experimental data for laser-driven systems and hohlraums.
Accurate and efficient atomic models are just one requirement for integrated NLTE simulations. Coupling the atomic kinetics to hydrodynamics and radiation transport constrains both discretizations and algorithms to retain energy conservation, accuracy and stability. In particular, the strong coupling between radiation and populations can require either very short time steps or significantly modified radiation transport algorithms to account for NLTE material response. Considerations such as these continue to provide challenges for NLTE simulations. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Scott, H. A.; Hansen, S. B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Hansen, S. B.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Scott, HA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM hascott@llnl.gov
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; U.S. Department of Energy [DE-AC04-94AL85000]
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344. SH was partially supported by Sandia, a multiprogram
laboratory operated by Sandia Corporation, a Lockheed Martin Company,
for the U.S. Department of Energy under Contract No. DE-AC04-94AL85000.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JAN
PY 2010
VL 6
IS 1
BP 39
EP 47
DI 10.1016/j.hedp.2009.07.003
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA 660BW
UT WOS:000282614500006
ER
PT J
AU Florido, R
Mancini, RC
Nagayama, T
Tommasini, R
Delettrez, JA
Regan, SP
Smalyuk, VA
Rodriguez, R
Gil, JM
AF Florido, R.
Mancini, R. C.
Nagayama, T.
Tommasini, R.
Delettrez, J. A.
Regan, S. P.
Smalyuk, V. A.
Rodriguez, R.
Gil, J. M.
TI Argon K-shell and bound-free emission from OMEGA direct-drive implosion
cores
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE X-ray spectroscopy; Spectral modeling; Plasma diagnostics
ID LINE-PROFILES; MULTIELECTRON IONS; DENSE-PLASMAS; SPECTRA; SPECTROSCOPY;
IONIZATION; OPACITY
AB We discuss calculations of synthetic spectra for the interpretation and analysis of K-shell and bound-free emission from argon-doped deuterium-filled OMEGA direct-drive implosion cores. The spectra are computed using a model that considers collisional-radiative atomic kinetics, continuum-lowering, detailed Stark-broadened line shapes, line overlapping, and radiation transport effects. The photon energy range covers the moderately optically thick n = 3 -> n = 1 and n = 4 -> n = 1 line transitions in He- and H-like Ar, their associated satellite lines in Li- and He-like Ar, and several radiative recombination edges. At the high-densities characteristic of implosion cores, the radiative recombination edges substantially shift to lower energies thus overlapping with several line transitions. We discuss the application of the spectra to spectroscopic analysis of doped implosion cores. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Florido, R.; Rodriguez, R.; Gil, J. M.] Univ Las Palmas Gran Canaria, Dept Fis, Las Palmas Gran Canaria 35017, Spain.
[Florido, R.; Mancini, R. C.; Nagayama, T.] Univ Nevada, Dept Phys, Reno, NV 89557 USA.
[Tommasini, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Delettrez, J. A.; Regan, S. P.; Smalyuk, V. A.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
RP Florido, R (reprint author), Univ Las Palmas Gran Canaria, Dept Fis, Las Palmas Gran Canaria 35017, Spain.
EM rflorido@dfis.ulpgc.es
RI Florido, Ricardo/H-5513-2015; Tommasini, Riccardo/A-8214-2009
OI Florido, Ricardo/0000-0001-7428-6273; Tommasini,
Riccardo/0000-0002-1070-3565
FU DOE/NLUF [DE-FG52-07NA28062]; LLNL; Spanish Ministry of Science and
Innovation [ENE2008-06668-C02/FTN]; EU
FX The authors would like to thank H.-K. Chung (University of California)
for helpful discussion about the continuum-lowering in plasma mixtures.
This work has been supported by DOE/NLUF Grant DE-FG52-07NA28062 and
LLNL. R. Florido, R. Rodriguez and J.M. Gil have been supported by
Research Grant ENE2008-06668-C02/FTN of the Spanish Ministry of Science
and Innovation and the Keep in Touch Project of the EU.
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JAN
PY 2010
VL 6
IS 1
BP 70
EP 75
DI 10.1016/j.hedp.2009.06.011
PG 6
WC Physics, Fluids & Plasmas
SC Physics
GA 660BW
UT WOS:000282614500010
ER
PT J
AU Tanabe, M
Nishimura, H
Ohnishi, N
Fournier, KB
Fujioka, S
Iwamae, A
Hansen, SB
Nagai, K
Girard, F
Primout, M
Villette, B
Brebion, D
Mima, K
AF Tanabe, Minoru
Nishimura, Hiroaki
Ohnishi, Naofumi
Fournier, Kevin B.
Fujioka, Shinsuke
Iwamae, Atsushi
Hansen, Stephanie B.
Nagai, Keiji
Girard, Frederic
Primout, Michel
Villette, Bruno
Brebion, Didier
Mima, Kunioki
TI Characterization of heat-wave propagation through laser-driven Ti-doped
underdense plasma
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE Laser-produced plasma; X-ray spectroscopy; Plasma diagnostics; X-ray
generation
ID RAY CONVERSION EFFICIENCY; YIELD; LIGHT
AB The propagation of a laser-driven heat-wave into a Ti-doped aerogel target was investigated. The temporal evolution of the electron temperature was derived by means of Ti K-shell X-ray spectroscopy, and compared with two-dimensional radiation hydrodynamic simulations. Reasonable agreement was obtained in the early stage of the heat-wave propagation. In the later phase, laser absorption, the propagation of the heat-wave, and hydrodynamic motion interact in a complex manner, and the plasma is mostly re-heated by collision and stagnation at the target central axis. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Tanabe, Minoru; Nishimura, Hiroaki; Fujioka, Shinsuke; Nagai, Keiji; Mima, Kunioki] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan.
[Ohnishi, Naofumi] Tohoku Univ, Dept Aerosp Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan.
[Fournier, Kevin B.; Hansen, Stephanie B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Iwamae, Atsushi] Kyoto Univ, Dept Mech Engn & Sci, Kyoto 6068501, Japan.
[Girard, Frederic; Primout, Michel; Villette, Bruno; Brebion, Didier] DAM Ile de France, CEA, F-91297 Bruyeres Le Chatel, Arpajon, France.
[Hansen, Stephanie B.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Tanabe, M (reprint author), Osaka Univ, Inst Laser Engn, 2-6 Yamada Oka, Suita, Osaka 5650871, Japan.
EM mtanabe@ile.osaka-u.ac.jp
RI Nagai, Keiji/E-5155-2014; Nishimura, Hiroaki/I-4908-2015; Fujioka,
Shinsuke/J-5530-2015; Mima, Kunioki/H-9014-2016; Tanabe,
Minoru/O-2016-2016
OI Fujioka, Shinsuke/0000-0001-8406-1772; Tanabe,
Minoru/0000-0002-9077-3896
FU U.S. Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Ministry of Education, Cultures, Sports, Science
and Technology of Japan [442, 20026005]; JSPS-CAS
FX This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344, the Ministry of Education, Cultures, Sports, Science
and Technology of Japan project "Advanced Diagnostics for Burning Plasma
(code 442) "Temperature and density mapping of imploded burning plasma
with monochromatic X-ray imaging (code 20026005), and JSPS-CAS
Core-University Program in the field of "Plasma and Nuclear Fusion".
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PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JAN
PY 2010
VL 6
IS 1
BP 89
EP 94
DI 10.1016/j.hedp.2009.06.006
PG 6
WC Physics, Fluids & Plasmas
SC Physics
GA 660BW
UT WOS:000282614500013
ER
PT J
AU Dzelzainis, TWJ
Chalupsky, J
Fajardo, M
Faustlin, R
Heimann, PA
Hajkova, V
Juha, L
Jurek, M
Khattak, FY
Kozlova, M
Krzywinski, J
Lee, RW
Nagler, B
Nelson, AJ
Rosmej, FB
Soberierski, R
Toleikis, S
Tschentscher, T
Vinko, SM
Wark, JS
Whitcher, T
Riley, D
AF Dzelzainis, T. W. J.
Chalupsky, J.
Fajardo, M.
Faeustlin, R.
Heimann, P. A.
Hajkova, V.
Juha, L.
Jurek, M.
Khattak, F. Y.
Kozlova, M.
Krzywinski, J.
Lee, R. W.
Nagler, B.
Nelson, A. J.
Rosmej, F. B.
Soberierski, R.
Toleikis, S.
Tschentscher, T.
Vinko, S. M.
Wark, J. S.
Whitcher, T.
Riley, D.
TI Plasma emission spectroscopy of solids irradiated by intense XUV pulses
from a free electron laser
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE XUV spectroscopy; VUV-FEL; Warm dense plasma
ID X-RAY
AB The FLASH XUV-free electron laser has been used to irradiate solid samples at intensities of the order 10(16) W cm(-2) at a wavelength of 13.5 nm. The subsequent time integrated XUV emission was observed with a grating spectrometer. The electron temperature inferred from plasma line ratios was in the range 5-8 eV with electron density in the range 10(21)-10(22) cm(-3). These results are consistent with the saturation of absorption through bleaching of the L-edge by intense photo-absorption reported in an earlier publication. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Dzelzainis, T. W. J.; Riley, D.] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland.
[Chalupsky, J.; Hajkova, V.; Juha, L.; Jurek, M.; Kozlova, M.] Acad Sci Czech Republic, Inst Phys, Prague 8, Czech Republic.
[Fajardo, M.] Inst Super Tecn, Ctr Fis Plasmas, Lisbon, Portugal.
[Faeustlin, R.; Toleikis, S.; Tschentscher, T.] DESY, D-22607 Hamburg, Germany.
[Lee, R. W.; Nelson, A. J.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Khattak, F. Y.] Kohat Univ Sci & Technol, Dept Phys, Kohat 26000, Nwfp, Pakistan.
[Soberierski, R.] Polish Acad Sci, Inst Phys, PL-00901 Warsaw, Poland.
[Krzywinski, J.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Nagler, B.; Vinko, S. M.; Wark, J. S.; Whitcher, T.] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England.
[Rosmej, F. B.] Univ Paris 06, UMR 7605, F-75252 Paris 05, France.
[Heimann, P. A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Riley, D (reprint author), Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland.
EM d.riley@qub.ac.uk
RI Vinko, Sam/I-4845-2013; Hajkova, Vera/G-9391-2014; Chalupsky,
Jaromir/H-2079-2014; Fajardo, Marta/A-4608-2012; KHATTAK, Fida
Younus/L-2404-2015
OI Vinko, Sam/0000-0003-1016-0975; Fajardo, Marta/0000-0003-2133-2365;
NR 10
TC 6
Z9 6
U1 1
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1818
J9 HIGH ENERG DENS PHYS
JI High Energy Density Phys.
PD JAN
PY 2010
VL 6
IS 1
BP 109
EP 112
DI 10.1016/j.hedp.2009.05.017
PG 4
WC Physics, Fluids & Plasmas
SC Physics
GA 660BW
UT WOS:000282614500017
ER
PT S
AU Besuner, RW
Baltay, C
Diehl, HT
Emmet, WT
Harris, SE
Jelinsky, PN
Krider, JC
Rabinowitz, DL
Roe, NA
AF Besuner, R. W.
Baltay, C.
Diehl, H. T.
Emmet, W. T.
Harris, S. E.
Jelinsky, P. N.
Krider, J. C.
Rabinowitz, D. L.
Roe, N. A.
BE Holland, AD
Dorn, DA
TI Space-qualified, abuttable packaging for LBNL p-channel CCDs, Part II
SO HIGH ENERGY, OPTICAL, AND INFRARED DETECTORS FOR ASTRONOMY IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on High Energy, Optical, and Infrared Detectors for Astronomy
IV
CY JUN 27-30, 2010
CL San Diego, CA
SP SPIE
DE JDEM; SNAP; SiC; Silicon Carbide; Radiation Tolerant
ID CHARGE-COUPLED-DEVICES; SNAP
AB Fully depleted, back-illuminated, p-channel CCDs developed at Lawrence Berkeley National Laboratory exhibit high quantum efficiency in the near-infrared (700-1050nm), low fringing effects, low lateral charge diffusion (and hence small, well-controlled point spread function), and high radiation tolerance. Building on previous efforts, we have developed techniques and hardware that have produced space-qualified 4-side abuttable, high-precision detector packages for 10.5 mu m pixel, 3.5k x 3.5k p-channel LBNL CCDs. These packages are built around a silicon carbide mounting pedestal, providing excellent rigidity, thermal stability, and heat transfer. Precision fixturing produces packages with detector surface flatness better than 10 mu m P-V. These packages with active areas of 36.8mm square may be packed on a detector pitch as small as 44mm. LBNL-developed Front End Electronics (FEE) packages can mount directly to the detector packages within the same footprint and detector pitch. This combination, along with identically interfaced NIR detector/FEE packages offers excellent opportunities for high density, high pixel count focal planes for space-based, ground-based, and airborne astronomy.
C1 [Besuner, R. W.; Roe, N. A.] Lawrence Berkeley Lab, Berkeley, CA USA.
RP Besuner, RW (reprint author), Lawrence Berkeley Lab, Berkeley, CA USA.
RI Roe, Natalie/A-8798-2012
NR 14
TC 1
Z9 1
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-232-7
J9 PROC SPIE
PY 2010
VL 7742
AR 77420H
DI 10.1117/12.8564690
PG 12
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BSU75
UT WOS:000285834500013
ER
PT S
AU Kotov, IV
Kotov, AI
Frank, J
Kubanek, P
Prouza, M
O'Connor, P
Radeka, V
Takacs, P
AF Kotov, I. V.
Kotov, A. I.
Frank, J.
Kubanek, P.
Prouza, M.
O'Connor, P.
Radeka, V.
Takacs, P.
BE Holland, AD
Dorn, DA
TI Study of Pixel Area Variations in Fully Depleted Thick CCD
SO HIGH ENERGY, OPTICAL, AND INFRARED DETECTORS FOR ASTRONOMY IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on High Energy, Optical, and Infrared Detectors for Astronomy
IV
CY JUN 27-30, 2010
CL San Diego, CA
SP SPIE
DE CCD; pixel size; charge diffusion
ID SILICON
AB Future wide field astronomical surveys, like Large Synoptic Survey Telescope (LSST), require photometric precision on the percent level. The accuracy of sensor calibration procedures should match these requirements. Pixel size variations found in CCDs from different manufacturers are the source of systematic errors in the flat field calibration procedure. To achieve the calibration accuracy required to meet the most demanding science goals this effect should be taken into account.
The study of pixel area variations was performed for fully depleted, thick CCDs produced in a technology study for LSST. These are n-channel, 100 mu m thick devices.
We find pixel size variations in both row and column directions. The size variation magnitude is smaller in the row direction. In addition, diffusion is found to smooth out electron density variations. It is shown that the characteristic diffusion width can be extracted from the flat field data.
Results on pixel area variations and diffusion, data features, analysis technique and modeling technique are presented and discussed.
C1 [Kotov, I. V.; Kotov, A. I.; Frank, J.; O'Connor, P.; Radeka, V.; Takacs, P.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Kotov, IV (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM kotov@bnl.gov
RI Kubanek, Petr/G-7209-2014; Prouza, Michael/F-8514-2014
OI Prouza, Michael/0000-0002-3238-9597
NR 10
TC 6
Z9 6
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-232-7
J9 PROC SPIE
PY 2010
VL 7742
AR 774206
DI 10.1117/12.856519
PG 8
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BSU75
UT WOS:000285834500006
ER
PT S
AU Mostek, NJ
Bebek, CJ
Karcher, A
Kolbe, WF
Roe, NA
Thacker, J
AF Mostek, Nick J.
Bebek, Christopher J.
Karcher, Armin
Kolbe, William F.
Roe, Natalie A.
Thacker, Jonathan
BE Holland, AD
Dorn, DA
TI Charge trap identification for proton-irradiated p plus channel CCDs
SO HIGH ENERGY, OPTICAL, AND INFRARED DETECTORS FOR ASTRONOMY IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on High Energy, Optical, and Infrared Detectors for Astronomy
IV
CY JUN 27-30, 2010
CL San Diego, CA
SP SPIE
DE Proton Radiation Damage; Silicon CCD Detectors; Pocket Pumping; Charge
Transfer Efficiency
ID TRANSFER INEFFICIENCY; SILICON; DAMAGE
AB Charge trapping in bulk silicon lattice structures is a source of charge transfer inefficiency (CTI) in CCDs. These traps can be introduced into the lattice by low-energy proton radiation in the space environment, decreasing the performance of the CCD detectors over time. Detailed knowledge of the inherent trap properties, including energy level and cross section, is important for understanding the impact of the defects on charge transfer as a function of operating parameters such as temperature and clocking speeds. This understanding is also important for mitigation of charge transfer inefficiency through annealing, software correction, or improved device fabrication techniques. In this paper, we measure the bulk trap properties created by 12.5 MeV proton irradiation on p+ channel, full-depletion CCDs developed at LBNL. Using the pocket pumping technique, we identify the majority trap populations responsible for CTI in both the parallel and serial transfer processes. We find the dominant parallel transfer trap properties are well described by the silicon lattice divacancy trap, in agreement with other studies. While the properties of the defects responsible for CTI in the serial transfer are more difficult to measure, we conclude that divacancy-oxygen defect centers would be efficient at our serial clocking rate and exhibit properties consistent with our serial pocket pumping data.
C1 [Mostek, Nick J.; Bebek, Christopher J.; Karcher, Armin; Kolbe, William F.; Roe, Natalie A.; Thacker, Jonathan] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Mostek, NJ (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM njmostek@lbl.gov
RI Roe, Natalie/A-8798-2012
NR 16
TC 12
Z9 12
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-232-7
J9 PROC SPIE
PY 2010
VL 7742
AR 774216
DI 10.1117/12.855936
PG 12
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BSU75
UT WOS:000285834500033
ER
PT S
AU Takacs, PZ
Kotov, I
Frank, J
O'Connor, P
Radeka, V
Lawrence, DM
AF Takacs, P. Z.
Kotov, I.
Frank, J.
O'Connor, P.
Radeka, V.
Lawrence, D. M.
BE Holland, AD
Dorn, DA
TI PSF and MTF Measurement Methods for Thick CCD Sensor Characterization
SO HIGH ENERGY, OPTICAL, AND INFRARED DETECTORS FOR ASTRONOMY IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on High Energy, Optical, and Infrared Detectors for Astronomy
IV
CY JUN 27-30, 2010
CL San Diego, CA
SP SPIE
DE Point-spread function (PSF); line-spread function (LSF); modulation
transfer function (MTF); Si CCD; charge diffusion; virtual knife edge
(VKE); interference fringes; LSST
ID MODULATION TRANSFER-FUNCTION; BASIC IMAGING PROPERTIES; DIGITAL
RADIOGRAPHY; DETECTORS; SYSTEMS
AB Knowledge of the point spread function (PSF) of the sensors to be used in the Large Synoptic Survey Telescope (LSST) camera is essential for optimal extraction of subtle galaxy shape distortions caused by gravitational weak lensing. We have developed a number of techniques for measuring the PSF of candidate CCD sensors to be used in the LSST camera, each with its own strengths and weaknesses. The two main optical PSF measurement techniques that we use are the direct Virtual Knife Edge (VKE) scan as developed by Karcher, et al.(1) and the indirect interference fringe method after Andersen and Sorensen(2) that measures the modulation transfer function (MTF) directly. The PSF is derived from the MTF by Fourier transform. Other non-optical PSF measurement techniques that we employ include Fe-55 x-ray cluster image size measurements and statistical distribution analysis, and cosmic ray muon track size measurements, but are not addressed here.
The VKE technique utilizes a diffraction-limited spot produced by a Point-Projection Microscope (PPM) that is scanned across the sensor with sub-pixel resolution. This technique closely simulates the actual operating condition of the sensor in the telescope with the source spot size having an f/# close to the actual telescope design value. The interference fringe method uses a simple equal-optical-path Michelson-type interferometer with a single-mode fiber source that produces interference fringes with 100% contrast over a wide spatial frequency range sufficient to measure the MTF of the sensor directly. The merits of each measurement technique and results from the various measurement techniques on prototype LSST sensors are presented and compared.
C1 [Takacs, P. Z.; Kotov, I.; Frank, J.; O'Connor, P.; Radeka, V.; Lawrence, D. M.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Takacs, PZ (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 13
TC 5
Z9 5
U1 1
U2 7
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-232-7
J9 PROC SPIE
PY 2010
VL 7742
AR 774207
DI 10.1117/12.856738
PG 12
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BSU75
UT WOS:000285834500007
ER
PT S
AU Wurtz, R
Olivier, S
Riot, V
Hanold, BJ
Figer, DF
AF Wurtz, Ron
Olivier, Scot
Riot, Vincent
Hanold, Brandon J.
Figer, Donald F.
BE Holland, AD
Dorn, DA
TI Centroid precision as a function of total counts in a windowed CMOS
image of a point source
SO HIGH ENERGY, OPTICAL, AND INFRARED DETECTORS FOR ASTRONOMY IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on High Energy, Optical, and Infrared Detectors for Astronomy
IV
CY JUN 27-30, 2010
CL San Diego, CA
SP SPIE
DE CMOS; guider; LSST; centroiding
AB We obtained 960,200 22-by-22-pixel windowed images of a pinhole spot using the Teledyne H2RG CMOS detector with un-cooled SIDECAR readout. We performed an analysis to determine the precision we might expect in the position error signals to a telescope's guider system. We find that, under non-optimized operating conditions, the error in the computed centroid is strongly dependent on the total counts in the point image only below a certain threshold, approximately 50,000 photo-electrons. The LSST guider camera specification currently requires a 0.04 arcsecond error at 10 Hertz. Given the performance measured here, this specification can be delivered with a single star at 14(th) to 18(th) magnitude, depending on the passband.
C1 [Wurtz, Ron; Olivier, Scot; Riot, Vincent] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Wurtz, R (reprint author), Lawrence Livermore Natl Lab, 7000 E Ave, Livermore, CA 94551 USA.
EM wurtz@llnl.gov
NR 8
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-232-7
J9 PROC SPIE
PY 2010
VL 7742
AR 774228
DI 10.1117/12.857659
PG 7
WC Astronomy & Astrophysics; Optics
SC Astronomy & Astrophysics; Optics
GA BSU75
UT WOS:000285834500062
ER
PT B
AU Skilton, JL
Hinton, JA
Brucker, J
Pandey-Pommier, M
Cheung, CC
Aharonian, FA
Dubus, G
Fiasson, A
Funk, S
Gallant, Y
Marcowith, A
Reimer, O
AF Skilton, J. L.
Hinton, J. A.
Brucker, J.
Pandey-Pommier, M.
Cheung, C. C.
Aharonian, F. A.
Dubus, G.
Fiasson, A.
Funk, S.
Gallant, Y.
Marcowith, A.
Reimer, O.
BE Marti, J
LuqueEscamilla, PL
Combi, JA
TI Radio and X-ray Observations of the Possible New Gamma-ray binary HESS
J0632+057
SO HIGH ENERGY PHENOMENA IN MASSIVE STARS
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT International Meeting on High Energy Phenomena in Massive Stars
CY FEB 02-05, 2009
CL Univ Jaen, Jaen, SPAIN
SP Universitas Giennensis, Escuela Politecn Superior Jaen, Junta Andalucia, Universe Yours Discover
HO Univ Jaen
ID DISCOVERY; STARS
AB HESS J0632+057 is one of the only point-like, unidentified TeV sources in our galaxy. The association of this source with the massive B0pe star MWC 148 has led to the suggestion that HESS J0632+057 could be a new gamma-ray binary system. Our recent X-ray observations with XMM-Newton have revealed a non-thermal, point-like source coincident with this star, further strengthening the identification of HESS J0632+057 as a high mass X-ray binary system. Here we present new Very Large Array (VLA) and Giant Metre-wave Radio Telescope (GMRT) observations towards HESS J0632+057 which reveal point-like variable emission at the location of MWC 148.
C1 [Skilton, J. L.; Hinton, J. A.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England.
[Brucker, J.] Univ Erlangen Nurnberg, Inst Phys, D-91058 Erlangen, Germany.
[Pandey-Pommier, M.] Leiden Observ, NL-2300 RA Leiden, Netherlands.
[Cheung, C. C.] NASA, Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USA.
[Aharonian, F. A.] Dublin Inst Adv Studies, Dublin, Ireland.
[Dubus, G.] Univ Grenoble 1, Astrophys Lab, INSU, CNRS, F-38041 Grenoble, France.
[Fiasson, A.; Gallant, Y.; Marcowith, A.] Univ Montpellier 2, Lab Phys Theoret Astroparticules, CNRS, IN2P3, F-34095 Montpellier, France.
[Fiasson, A.] Lab Annecy Le Vieux Phys Particules, CNRS, IN2P3, F-74941 Annecy Le Vieux, France.
[Funk, S.; Reimer, O.] Kavali Inst Particle Astrpphys & Cosmol, SLAC, Menlo Pk, CA 94025 USA.
[Reimer, O.] Univ Innsbruck, Inst Phys Astron & Particle Phys, Innsbruck, Austria.
RP Skilton, JL (reprint author), Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England.
RI Reimer, Olaf/A-3117-2013
OI Reimer, Olaf/0000-0001-6953-1385
NR 14
TC 0
Z9 0
U1 0
U2 0
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-724-7
J9 ASTR SOC P
PY 2010
VL 422
BP 128
EP +
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BUE39
UT WOS:000289008000014
ER
PT B
AU Hermann, V
Pham, ND
Fichtner, A
Kremers, S
Huang, LJ
Johnson, P
Larmat, C
Bunge, HP
Igel, H
AF Hermann, V.
Pham, N. D.
Fichtner, A.
Kremers, S.
Huang, Lianjie
Johnson, Paul
Larmat, Carene
Bunge, H-P
Igel, H.
BE Wagner, S
Steinmetz, M
Bode, A
Muller, MM
TI Advances in Modelling and Inversion of Seismic Wave Propagation
SO HIGH PERFORMANCE COMPUTING IN SCIENCE AND ENGINEERING, GARCHING/MUNICH
2009: TRANSACTIONS OF THE FOURTH JOINT HLRB AND KONWIHR REVIEW AND
RESULTS WORKSHOP
LA English
DT Proceedings Paper
CT 4th Joint HLRB and KONWIHR Review and Results Workshop
CY DEC 08-09, 2009
CL Leibniz Supercomputing Ctr, Garching, GERMANY
SP State Bavaria, German Res Fdn (DFG), German Fed Minist Educ & Res (BMBF)
HO Leibniz Supercomputing Ctr
ID SPECTRAL-ELEMENT METHOD; FINITE-DIFFERENCE; TOMOGRAPHY; TOPOGRAPHY;
MOTION; MEDIA
AB We report on progress in modelling and inversion of seismic waveforms. This involves in particular the simulation of wave propagation through Earth models with complex geometries (i.e., internal interfaces or topography) using numerical solutions based on tetrahedral meshes. In addition, efficient solvers in 3-D based on a regular-grid spectral element method allow for the simulation of many Earth models and for the inversion (i.e., for the fit) of observed seismograms using adjoint techniques. We present an application of this approach to the Australian continent. Furthermore results are presented on exploiting ideas from reverse acoustics to estimate finite source properties of large earthquakes and to constrain crustal scattering through modeling joint observations of rotational and translational ground motions.
C1 [Hermann, V.; Pham, N. D.; Fichtner, A.; Kremers, S.; Bunge, H-P; Igel, H.] Univ Munich, Dept Earth & Environm Sci, Munich, Germany.
[Huang, Lianjie; Johnson, Paul; Larmat, Carene] Los Alamos Natl Lab, Earth & Environm Sci Div, Geophys Grp, Los Alamos, NM 87545 USA.
RP Hermann, V (reprint author), Univ Munich, Dept Earth & Environm Sci, Munich, Germany.
EM igel@geophysik.uni-muenchen.de
RI Igel, Heiner/E-9580-2010; Fichtner, Andreas/J-2554-2015
FU Bavarian Elite Network THESIS; KONWIHR; European Human Resources
Mobility Programme (SPICE project); DFG Emmy-Noether Programme; DAAD
(N.D. Pham); Vietnamese Government; Los Alamos National Laboratory, New
Mexico
FX We acknowledge funding from the Bavarian Elite Network THESIS, KONWIHR,
and the LRZ for providing the computational resources. We also
acknowledge the European Human Resources Mobility Programme (SPICE
project), the DFG Emmy-Noether Programme, and the DAAD (N.D. Pham) and
the Vietnamese Government. HI and SK also acknowledge support from the
Los Alamos National Laboratory, New Mexico.
NR 28
TC 0
Z9 0
U1 0
U2 6
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-3-642-13871-3
PY 2010
BP 293
EP +
DI 10.1007/978-3-642-13872-0_25
PG 3
WC Computer Science, Interdisciplinary Applications; Mathematics,
Interdisciplinary Applications
SC Computer Science; Mathematics
GA BXN18
UT WOS:000296478100025
ER
PT S
AU Liu, B
Liu, Y
Braiman, Y
AF Liu, Bo
Liu, Yun
Braiman, Yehuda
BE Zediker, MS
TI Coherent Beam Combining of High-Power Broad-Area Laser Diode Array in CW
and Pulsed Modes
SO HIGH-POWER DIODE LASER TECHNOLOGY AND APPLICATIONS VIII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on High-Power Diode Laser Technology and Applications VIII
CY JAN 25-26, 2010
CL San Francisco, CA
SP SPIE
DE Semiconductor laser; laser diode array; coherent beam combining;
external cavity; off-axis feedback
ID EXTERNAL TALBOT CAVITY; PHASE-LOCKED ARRAYS; SINGLE-LOBED BEAM;
SEMICONDUCTOR-LASERS; LOCKING; ANTIGUIDES; BANDWIDTH; OUTPUT; RANGE; NM
AB We present experimental results on coherent beam combining from large arrays of high power broad-area semiconductor lasers. Our laser array consists of 47 high-power anti-reflection coated broad-area semiconductor lasers and each laser emitter is capable of emitting 1.8 W when uncoated with a maximum array output power of 80W. The total available power from the AR coated array is approximately 40W. By using an external V-shape cavity design, we experimentally demonstrated a coherently combined beam at the output power of similar to 13 W with the 0.07 nm FWHM spectrum linewidth that is limited by the sensitivity of the optical spectrum analyzer. We also discuss coherent beam combining of high-power broad area laser diode array in current driver pulse mode operation.
C1 [Liu, Bo; Braiman, Yehuda] Oak Ridge Natl Lab, Ctr Engn Sci Adv Res, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
RP Liu, B (reprint author), Oak Ridge Natl Lab, Ctr Engn Sci Adv Res, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
EM liub@ornl.gov
NR 29
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7979-2
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7583
AR 75830Z
DI 10.1117/12.842259
PG 8
WC Optics; Physics, Applied
SC Optics; Physics
GA BSM49
UT WOS:000284938400033
ER
PT S
AU Dera, P
AF Dera, Przemyslaw
BE Boldyreva, E
Dera, P
TI INTRODUCTION TO HIGH-PRESSURE SCIENCE
SO HIGH-PRESSURE CRYSTALLOGRAPHY: FROM FUNDAMENTAL PHENOMENA TO
TECHNOLOGICAL APPLICATIONS
SE NATO Science for Peace and Security Series B-Physics and Biophysics
LA English
DT Proceedings Paper
CT 41st Course of the International School of Crystallography
CY JUN 04-14, 2009
CL Ettore Majorana Ctr Sci Culture, Erice, ITALY
SP Ettore Majorana Ctr Sci Culture
HO Ettore Majorana Ctr Sci Culture
DE High pressure; pressure-induced phenomena; diamond anvil cell; elastic
deformation; plastic deformation; yield stress
ID DIAMOND-ANVIL CELL; SINGLE-CRYSTAL; STRESS
AB To a common person pressure is just one of the parameters that describe a thermodynamic state. We all hear about it in everyday weather forecasts, and most of us do not associate it with anything particularly unique. Probably the most intuitive idea of the effect of high-pressure comes from movies, where submarine sinking to the bottom of the ocean is gradually crushed by the surrounding water, until its hull implodes. Why, then hundreds of scientists throughout the world spent their lifelong careers studying high-pressure phenomena? Despite all the developments in experimental technologies and instrumentation, modern scientist has very few tools that allow him or her to "grab" two atoms and bring them, in a very controllable way, closer together. Being able to achieve this task means the ability to directly probe interatomic interaction potentials and can cause transformations as dramatic as turning of a common gas into solid metal. Before the reader delves into more advanced topics described later in this book, this introductory chapter aims to explain several elementary, but extremely important concepts in high-pressure science. We will start with a brief discussion of laboratory devices used to produce pressure, address the issue of hydrostaticity, elastic and plastic compression, and will conclude with a short discussion of unique effects of anisotropic stress.
C1 Univ Chicago, Ctr Adv Radiat Sources, Argonne Natl Lab, Argonne, IL 60439 USA.
RP Dera, P (reprint author), Univ Chicago, Ctr Adv Radiat Sources, Argonne Natl Lab, Bldg 434A,9700 S Cass Ave, Argonne, IL 60439 USA.
EM dera@cars.uchicago.edu; dera@cars.uchicago.edu
RI Dera, Przemyslaw/F-6483-2013
NR 27
TC 1
Z9 1
U1 0
U2 6
PU SPRINGER
PI DORDRECHT
PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
SN 1871-465X
BN 978-90-481-9257-1
J9 NATO SCI PEACE SEC B
PY 2010
BP 1
EP 9
DI 10.1007/978-90-481-9258-8_1
PG 9
WC Crystallography; Materials Science, Multidisciplinary; Physics,
Condensed Matter
SC Crystallography; Materials Science; Physics
GA BUD96
UT WOS:000288972100001
ER
PT S
AU Dera, P
AF Dera, Przemyslaw
BE Boldyreva, E
Dera, P
TI ALL DIFFERENT FLAVORS OF SYNCHROTRON SINGLE CRYSTAL X-RAY DIFFRACTION
EXPERIMENTS
SO HIGH-PRESSURE CRYSTALLOGRAPHY: FROM FUNDAMENTAL PHENOMENA TO
TECHNOLOGICAL APPLICATIONS
SE NATO Science for Peace and Security Series B-Physics and Biophysics
LA English
DT Proceedings Paper
CT 41st Course of the International School of Crystallography
CY JUN 04-14, 2009
CL Ettore Majorana Ctr Sci Culture, Erice, ITALY
SP Ettore Majorana Ctr Sci Culture
HO Ettore Majorana Ctr Sci Culture
DE Synchrotron experiments; structure determination; single-crystal
diffraction; phase transitions
ID HIGH-PRESSURE; REFINEMENT; INTENSITIES; CELL
AB This lecture reviews the main concepts, applications and capabilities of different non-conventional approaches to single-crystal x-ray diffraction (SXD) experiment utilizing synchrotron radiation for applications in high-pressure research. You will learn how such experiment can be designed and performed to best answer the scientific goals of your study and, at the same time overcome the main technical limitations imposed by the high-pressure device and type of measurement. The emphasis will be placed on experiments that cannot be performed using laboratory instruments, e.g. involving ultrahigh (> 50 GPa) pressures, poor quality samples, laser heating in diamond anvil cell (DAC), etc. The main goal of the presentation is to convince you that even if you are not an expert crystallographer, with good understanding of the general basic principles of synchrotron SXD experiments in a DAC you can successfully use these techniques as valuable and easy tools in your own high-pressure research.
C1 Univ Chicago, Ctr Adv Radiat Sources, Argonne Natl Lab, Argonne, IL 60439 USA.
RP Dera, P (reprint author), Univ Chicago, Ctr Adv Radiat Sources, Argonne Natl Lab, Bldg 434A,9700 S Cass Ave, Argonne, IL 60439 USA.
EM dera@cars.uchicago.edu; dera@cars.uchicago.edu
RI Dera, Przemyslaw/F-6483-2013
NR 19
TC 3
Z9 3
U1 0
U2 2
PU SPRINGER
PI DORDRECHT
PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
SN 1871-465X
BN 978-90-481-9257-1
J9 NATO SCI PEACE SEC B
PY 2010
BP 11
EP 22
DI 10.1007/978-90-481-9258-8_2
PG 12
WC Crystallography; Materials Science, Multidisciplinary; Physics,
Condensed Matter
SC Crystallography; Materials Science; Physics
GA BUD96
UT WOS:000288972100002
ER
PT S
AU Vogel, SC
AF Vogel, Sven C.
BE Boldyreva, E
Dera, P
TI REDUCTION AND ANALYSIS OF TWO-DIMENSIONAL DIFFRACTION DATA INCLUDING
TEXTURE ANALYSIS
SO HIGH-PRESSURE CRYSTALLOGRAPHY: FROM FUNDAMENTAL PHENOMENA TO
TECHNOLOGICAL APPLICATIONS
SE NATO Science for Peace and Security Series B-Physics and Biophysics
LA English
DT Proceedings Paper
CT 41st Course of the International School of Crystallography
CY JUN 04-14, 2009
CL Ettore Majorana Ctr Sci Culture, Erice, ITALY
SP Ettore Majorana Ctr Sci Culture
HO Ettore Majorana Ctr Sci Culture
DE Diffraction data analysis; Rietveld refinement; texture analysis
ID X-RAY-DIFFRACTION; QUANTITATIVE PHASE-ANALYSIS; HIGH-PRESSURE
DEFORMATION; DIAMOND-ANVIL CELL; POWDER-DIFFRACTION; RIETVELD
REFINEMENT; MAGNETIC-STRUCTURES; DETECTOR SYSTEMS; ROUND-ROBIN;
R-FACTORS
AB This chapter provides a commented list of references which the author considers useful for diffraction data analysis such as references relating to Rietveld analysis. In particular, references relating to the analysis of two-dimensional detector data such as image plates or CCDs are given. Literature dealing with texture analysis and interpretation as well as web links for software and online tutorials are also provided.
C1 Los Alamos Natl Lab, LANSCE, Los Alamos, NM 87545 USA.
RP Vogel, SC (reprint author), Los Alamos Natl Lab, LANSCE, POB 1663, Los Alamos, NM 87545 USA.
EM sven@lanl.gov
RI Lujan Center, LANL/G-4896-2012;
OI Vogel, Sven C./0000-0003-2049-0361
NR 54
TC 0
Z9 0
U1 0
U2 3
PU SPRINGER
PI DORDRECHT
PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS
SN 1871-465X
BN 978-90-481-9257-1
J9 NATO SCI PEACE SEC B
PY 2010
BP 123
EP 133
DI 10.1007/978-90-481-9258-8_11
PG 11
WC Crystallography; Materials Science, Multidisciplinary; Physics,
Condensed Matter
SC Crystallography; Materials Science; Physics
GA BUD96
UT WOS:000288972100011
ER
PT J
AU Pravica, M
Kim, E
Tkachev, S
Chow, P
Xiao, YM
AF Pravica, Michael
Kim, Eunja
Tkachev, Sergey
Chow, Paul
Xiao, Yuming
TI High-pressure studies of melamine
SO HIGH PRESSURE RESEARCH
LA English
DT Article; Proceedings Paper
CT 47th Meeting of the European-High-Pressure-Research-Group (EHPRG 47)
CY SEP 06-11, 2009
CL Univ Pierre & Marie Curie, Cordeliers Campus, Paris, FRANCE
SP European High Pressure Res Grp
HO Univ Pierre & Marie Curie, Cordeliers Campus
DE melamine; high pressure; X-ray diffraction; X-ray Raman spectroscopy
ID RAMAN-SCATTERING; DECOMPOSITION; CYCLOHEXANE
AB We performed the first high-pressure study of melamine using X-ray Raman spectroscopy (XRS) up to 17GPa in a diamond anvil cell at ambient temperature. We utilized the 16 ID-D undulator beamline at the Advanced Photon Source for the X-ray source. The observed diminishment of the 1s* peak as well as other changes in the XRS spectra with pressure suggest the possibility of intra- and inter-molecular bonding changes due to two phase changes in the investigated pressure range or hybridization changes of atomic orbitals in the material with pressure. We also performed a complementary X-ray powder diffraction study of neat melamine up to 24GPa observing at least two phase transitions with pressure. Pressure cycling indicated that the phase transitions were reversible. Density-functional theory calculations performed on the system at ambient and low pressure show a high level of agreement with the experiments.
C1 [Pravica, Michael; Kim, Eunja; Tkachev, Sergey] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
[Pravica, Michael; Kim, Eunja; Tkachev, Sergey] Univ Nevada, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA.
[Chow, Paul; Xiao, Yuming] Argonne Natl Lab, Adv Photon Source, High Pressure Collaborat Access Team, Argonne, IL 60439 USA.
RP Pravica, M (reprint author), Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
EM pravica@physics.unlv.edu
NR 25
TC 8
Z9 8
U1 0
U2 3
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0895-7959
J9 HIGH PRESSURE RES
JI High Pressure Res.
PY 2010
VL 30
IS 1
BP 65
EP 71
AR PII 919928321
DI 10.1080/08957951003629854
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 570LX
UT WOS:000275680900014
ER
PT J
AU Antonangeli, D
Farber, DL
Aracne, CM
Ruddle, DG
Siebert, J
Bonner, BP
AF Antonangeli, D.
Farber, D. L.
Aracne, C. M.
Ruddle, D. G.
Siebert, J.
Bonner, B. P.
TI Kinetics of the isostructural to transition in cerium investigated by
ultrasonics
SO HIGH PRESSURE RESEARCH
LA English
DT Article
DE cerium; phase transition; kinetics
ID ALPHA-GAMMA-TRANSITION; KONDO VOLUME-COLLAPSE; ALLOYED TRIP STEELS;
GRAINS; CE
AB We performed ultrasonic pulse echo measurements on high-purity polycrystalline cerium across the isostructural to -fcc-to-fcc transition, up to 13kbar and then back down to 0.3kbar. Our results confirm the anomalous decrease of the longitudinal sound velocity in the -phase approaching the transition, a significant hysteresis loop, and definitively highlight the strong difference in the long wavelength limit of the lattice dynamics of the and phases. We have also studied the kinetics of the transition, which is well described by an Arrhenius behavior, with an activation volume of 10cm3/mol.
C1 [Antonangeli, D.; Farber, D. L.; Aracne, C. M.; Ruddle, D. G.; Siebert, J.; Bonner, B. P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Antonangeli, D.; Siebert, J.] Univ Paris Diderot, Univ Paris 06, Inst Phys Globe Paris, Inst Mineral & Phys Milieux Condenses,CNRS,UMR 75, Paris, France.
[Farber, D. L.] Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95063 USA.
[Bonner, B. P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RP Antonangeli, D (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM daniele.antonangeli@impmc.upmc.fr
RI siebert, julien/E-6998-2010; Farber, Daniel/F-9237-2011; Siebert,
Julien/A-8336-2014
OI Siebert, Julien/0000-0001-9972-6239
NR 22
TC 3
Z9 3
U1 0
U2 6
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0895-7959
J9 HIGH PRESSURE RES
JI High Pressure Res.
PY 2010
VL 30
IS 1
BP 151
EP 158
AR PII 919928544
DI 10.1080/08957950903554576
PG 8
WC Physics, Multidisciplinary
SC Physics
GA 570LX
UT WOS:000275680900028
ER
PT J
AU Lavina, B
Dera, P
Downs, RT
Tschauner, O
Yang, WE
Shebanova, O
Shen, GY
AF Lavina, Barbara
Dera, Przemyslaw
Downs, Robert T.
Tschauner, Oliver
Yang, Wenge
Shebanova, Olga
Shen, Guoyin
TI Effect of dilution on the spin pairing transition in rhombohedral
carbonates
SO HIGH PRESSURE RESEARCH
LA English
DT Article; Proceedings Paper
CT International-Union-of-Crystallography Meeting on Advanced
Crystallography at High Pressure
CY JUL 19-22, 2009
CL Harbin Inst Technol, Harbin, PEOPLES R CHINA
SP Int Union Crystallography
HO Harbin Inst Technol
DE magnesite; siderite; spin transition; compressibility; single crystal
diffraction
ID EARTHS LOWER MANTLE; LOWERMOST MANTLE; PRESSURE; IRON; PEROVSKITE;
MAGNESITE; STABILITY; WUSTITE; STATE; ZONE
AB The compressibility of an iron-bearing magnesite [image omitted] was determined by means of single crystal diffraction up to 64GPa. Up to 49 GPa the pressure-evolution of the unit cell volume of the solid solution with 12% of Fe2+ can be described by a third-order Birch-Murnaghan equation of state with parameters V0=281.0(5)angstrom 3, K0=102.8(3)GPa, K[image omitted]. The spin pairing of the Fe2+ d-electrons occurs between 49 and 52 GPa, as evidenced by a discontinuous volume change. The transition pressure is increased by about 5GPa compared with the iron end-member; an effect consistent with a cooperative contribution of adjacent clusters to the spin transition. The trend is, however, opposite in the periclase-wustite solid solution. Differences among the two structures, in particular in the Fe-Fe interactions, that might explain the different behavior are discussed.
C1 [Lavina, Barbara; Tschauner, Oliver] Univ Nevada, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA.
[Lavina, Barbara; Tschauner, Oliver] Univ Nevada, Dept Phys, Las Vegas, NV 89154 USA.
[Dera, Przemyslaw] Univ Chicago, GSECARS, Argonne, IL 60439 USA.
[Downs, Robert T.] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA.
[Tschauner, Oliver] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA.
[Yang, Wenge; Shebanova, Olga; Shen, Guoyin] Carnegie Inst Washington, HPCAT, Argonne, IL 60439 USA.
[Yang, Wenge] Carnegie Inst Washington, Adv Photon Source, HPSynC, Argonne, IL 60439 USA.
RP Lavina, B (reprint author), Univ Nevada, High Pressure Sci & Engn Ctr, Las Vegas, NV 89154 USA.
EM lavina.b1@gmail.com
RI Lavina, Barbara/A-1015-2010; Yang, Wenge/H-2740-2012; Shen,
Guoyin/D-6527-2011; Dera, Przemyslaw/F-6483-2013
OI Lavina, Barbara/0000-0002-8556-7916;
NR 22
TC 16
Z9 16
U1 1
U2 10
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0895-7959
J9 HIGH PRESSURE RES
JI High Pressure Res.
PY 2010
VL 30
IS 2
BP 224
EP 229
AR PII 922732440
DI 10.1080/08957959.2010.485391
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 606RW
UT WOS:000278445900002
ER
PT J
AU Haake, DM
Wilton, T
Krier, K
Stewart, AJ
Cormier, SM
AF Haake, Danelle M.
Wilton, Tom
Krier, Ken
Stewart, Arthur J.
Cormier, Susan M.
TI Causal Assessment of Biological Impairment in the Little Floyd River,
Iowa, USA
SO HUMAN AND ECOLOGICAL RISK ASSESSMENT
LA English
DT Article
DE causal characteristics; types of evidence; biological impairment;
agriculture; stressor identification; causation
ID SCIOTO RIVER; OHIO
AB An assessment of biological impairment in the Little Floyd River (Iowa, USA) was based oil evidence of three characteristics of causation: co-occurrence,preceding, and sufficiency. Evidence of the physical interaction of the probable causes and the biota, resulting alterations to the biota, as well as the time order of the cause and the effect were consistent. within the assessment, but the evidence For these causal characteristics did not discriminate among probable causes or other causes. Deposited sediment, low-dissolved oxygen, heat. stress, and ammonia toxicity are the probable causes of imapaired biological condition ill the Little Floyd River compared with other rivers in the ecoregion. Less likely causes are suspended sediment, altered basal food resources, and flow alteration. Very unlikely causes are PH shifts, total dissolved solids, Cyprinus carpino (an invasive species), metal toxicity, all([ pesticides. Data were insufficient to assess salinity or other toxicants. The assessment was Used to develop a recovery plan for the stream. This assessment demonstrates that, even when there are many candidate causes and uncertainties are substantial, the probable causes of biological impairments can be determined with enough certainty to inform decision-making to address environmental problems.
C1 [Haake, Danelle M.] Litzsinger Rd Ecol Ctr, St Louis, MO USA.
[Wilton, Tom; Krier, Ken] Iowa Dept Nat Resources, Water Monitoring & Assessment Sect, Des Moines, IA USA.
[Stewart, Arthur J.] Oak Ridge Associated Univ, Oak Ridge, TN USA.
[Cormier, Susan M.] US EPA, Off Res & Dev, Cincinnati, OH 45268 USA.
RP Haake, DM (reprint author), Litzsinger Rd Ecol Ctr, 9711 Litzsinger Rd, Ladue, MO 63124 USA.
OI stewart, arthur/0000-0003-1968-5997
NR 15
TC 5
Z9 5
U1 0
U2 9
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1080-7039
J9 HUM ECOL RISK ASSESS
JI Hum. Ecol. Risk Assess.
PD JAN-FEB
PY 2010
VL 16
IS 1
BP 116
EP 148
DI 10.1080/10807030903459544
PG 33
WC Biodiversity Conservation; Environmental Sciences
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 562NO
UT WOS:000275058800009
ER
PT J
AU Paller, MH
Dyer, SA
AF Paller, Michael H.
Dyer, Susan A.
TI Ecological Effects of Metals in Streams on a Defense Materials
Processing Site in South Carolina, USA
SO HUMAN AND ECOLOGICAL RISK ASSESSMENT
LA English
DT Article
DE ecological risk; metals; streams; nuclear site; watersheds; exposure
models
ID COASTAL-PLAIN STREAMS; WATER; FISH; INDEX
AB The Savannah River Site (SRS) is a 780 km2 U.S. Department of Energy facility near Aiken, South Carolina, established in 1950 to produce nuclear materials. SRS streams are ointegratorso that potentially receive water transportable contaminants from all sources within their drainage basins, necessitating a watershed approach to organize contaminant distribution data and characterize the effects of multiple contaminants on aquatic organisms. This study used several lines-of-evidence to assess the ecological effects of metals in SRS streams, including contaminant exposure models for apex predators and bioassessments of fish and macroinvertebrate assemblages. Concentrations of metals in sediments, fish, and water were elevated in streams affected by SRS operations, but contaminant exposure models for the river otter Lontra Canadensis and belted kingfisher Ceryle alcyon indicated that toxicological reference values were exceeded only by Hg and Al. Macroinvertebrate assemblage structure was unrelated to sediment metal concentrations. Fish assemblage data were inconclusive. This study indicated that (1) modeling studies and field bioassessments provide a complementary basis for addressing the individual and cumulative effects of contaminants, (2) habitat effects must be controlled when assessing contaminant impacts, (3) sensitivity analyses of contaminant exposure models can help to apportion sampling effort, and (4) most individual metals in SRS streams are unlikely to have significant ecological effects.
C1 [Paller, Michael H.] Savannah River Natl Lab, Aiken, SC 29808 USA.
[Dyer, Susan A.] Soil & Groundwater Remediat Support, Aiken, SC USA.
RP Paller, MH (reprint author), Savannah River Natl Lab, Bldg 773-42A,Savannah River Site, Aiken, SC 29808 USA.
EM michael.paller@srnl.doe.gov
FU U.S. Department of Energy [DE-AC09-96SR18500]
FX We thank the many individuals that collected and analyzed environmental
samples and developed and maintained the data bases used in this study.
This report was developed during U.S. Department of Energy Contract No.
DE-AC09-96SR18500.
NR 29
TC 3
Z9 3
U1 1
U2 12
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1080-7039
J9 HUM ECOL RISK ASSESS
JI Hum. Ecol. Risk Assess.
PY 2010
VL 16
IS 5
BP 1095
EP 1114
AR PII 927924873
DI 10.1080/10807039.2010.512255
PG 20
WC Biodiversity Conservation; Environmental Sciences
SC Biodiversity & Conservation; Environmental Sciences & Ecology
GA 662MD
UT WOS:000282810500009
ER
PT S
AU Gnedin, NY
Kravtsov, AV
AF Gnedin, Nickolay Y.
Kravtsov, Andrey V.
BE Debattista, VP
Popescu, CC
TI On the Kennicutt-Schmidt Relation of Low-Metallicity High-Redshift
Galaxies
SO HUNTING FOR THE DARK: THE HIDDEN SIDE OF GALAXY FORMATION
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Hunting for the Dark: The Hidden Side of
Galaxy Formation
CY OCT 19-23, 2009
CL Qawra, MALTA
SP Univ Malta, Univ Central Lancashire, Malta Council Sci Tech, Royal Astronom Soc, Heritage Malta, Toyota, Michael Debono Ltd, Air Malta, Farsons
ID STAR-FORMING GALAXIES; GALACTIC DISKS; MOLECULAR GAS; FORMATION LAW
AB We present results of self-consistent, high-resolution cosmological simulations of galaxy formation at z similar to 3. The simulations employ a recently developed recipe for star formation based on the local abundance of molecular hydrogen, which is tracked self-consistently during the course of the simulation. The phenomenological H(2) formation model accounts for the effects of dissociating UV radiation of stars in each galaxy, as well as for self-shielding and shielding of H(2) by dust. This allows us therefore to explore effects of lower metallicities and higher UV fluxes prevalent in high redshift galaxies on their star formation. We find that the Kennicutt-Schmidt (KS) relation exhibited by our simulated galaxies at z approximate to 3 is substantially steeper and has a lower amplitude than the z = 0 relation at Sigma(H) < 100M(circle dot)/pc(2). The predicted relation, however, is consistent with existing observational constraints for the z approximate to 3 Damped Lyman alpha (DLA) and LBGs.
C1 [Gnedin, Nickolay Y.] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.
RP Gnedin, NY (reprint author), Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA.
NR 21
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0786-2
J9 AIP CONF PROC
PY 2010
VL 1240
BP 115
EP 118
DI 10.1063/1.3458463
PG 4
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BRR30
UT WOS:000283480000022
ER
PT S
AU Joslyn, C
Hogan, E
AF Joslyn, Cliff
Hogan, Emilie
BE Corchado, E
Romay, MG
Savio, AM
TI Order Metrics for Semantic Knowledge Systems
SO HYBRID ARTIFICIAL INTELLIGENCE SYSTEMS, PT 2
SE Lecture Notes in Artificial Intelligence
LA English
DT Proceedings Paper
CT 5th International Conference on Hybrid Artificial Intelligence Systems
CY JUN 23-25, 2010
CL Univ Pais Vasco, San Sebastian, SPAIN
HO Univ Pais Vasco
AB Knowledge systems technologies, as derived from AI methods and used in the modern Semantic Web movement, are dominated by graphical knowledge structures such as ontologies and semantic graph databases. A critical but typically overlooked aspect of all of these structures is their admission to analyses in terms of formal hierarchical relations. The partial order representations of whatever hierarchy is present within a knowledge structure afford opportunities to exploit these hierarchical constraints to facilitate a variety of tasks, including ontology analysis and alignment, visual layout, and anomaly detection. We introduce the basic concepts of order metrics and address the impact of a hierarchical (order-theoretical) analysis on knowledge systems tasks.
C1 [Joslyn, Cliff] Pacific Northwest Natl Lab, Natl Secur Directorate, Seattle, WA 98109 USA.
[Hogan, Emilie] Rutgers State Univ, Dept Mat, Piscataway, NJ 08855 USA.
RP Joslyn, C (reprint author), Pacific Northwest Natl Lab, Natl Secur Directorate, Seattle, WA 98109 USA.
EM cjoslyn@pnl.gov
NR 15
TC 1
Z9 1
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-13802-7
J9 LECT NOTES ARTIF INT
PY 2010
VL 6077
BP 399
EP +
PG 3
WC Computer Science, Artificial Intelligence; Computer Science,
Interdisciplinary Applications
SC Computer Science
GA BTG57
UT WOS:000286905700050
ER
PT J
AU Murakami, H
Chen, X
Hahn, MS
Liu, Y
Rockhold, ML
Vermeul, VR
Zachara, JM
Rubin, Y
AF Murakami, H.
Chen, X.
Hahn, M. S.
Liu, Y.
Rockhold, M. L.
Vermeul, V. R.
Zachara, J. M.
Rubin, Y.
TI Bayesian approach for three-dimensional aquifer characterization at the
Hanford 300 Area
SO HYDROLOGY AND EARTH SYSTEM SCIENCES
LA English
DT Article
ID PUMPING TEST DATA; HYDRAULIC TOMOGRAPHY; HETEROGENEOUS AQUIFERS;
CONDUCTIVITY; INFERENCE; INVERSE; MOMENTS; TESTS; SITE
AB This study presents a stochastic, three-dimensional characterization of a heterogeneous hydraulic conductivity field within the Hanford 300 Area, Washington, USA, by assimilating large-scale, constant-rate injection test data with small-scale, three-dimensional electromagnetic borehole flowmeter (EBF) measurement data. We first inverted the injection test data to estimate the transmissivity field, using zeroth-order temporal moments of pressure buildup curves. We applied a newly developed Bayesian geostatistical inversion framework, the method of anchored distributions (MAD), to obtain a joint posterior distribution of geostatistical parameters and local log-transmissivities at multiple locations. The unique aspects of MAD that make it suitable for this purpose are its ability to integrate multi-scale, multi-type data within a Bayesian framework and to compute a nonparametric posterior distribution. After we combined the distribution of transmissivities with depth-discrete relative-conductivity profile from the EBF data, we inferred the three-dimensional geostatistical parameters of the log-conductivity field, using the Bayesian model-based geostatistics. Such consistent use of the Bayesian approach throughout the procedure enabled us to systematically incorporate data uncertainty into the final posterior distribution. The method was tested in a synthetic study and validated using the actual data that was not part of the estimation. Results showed broader and skewed posterior distributions of geostatistical parameters except for the mean, which suggests the importance of inferring the entire distribution to quantify the parameter uncertainty.
C1 [Chen, X.; Hahn, M. S.; Liu, Y.; Rubin, Y.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
[Murakami, H.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Rockhold, M. L.; Vermeul, V. R.; Zachara, J. M.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Rubin, Y (reprint author), Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA.
EM rubin@ce.berkeley.edu
RI Wainwright, Haruko/A-5670-2015
OI Wainwright, Haruko/0000-0002-2140-6072
FU US DOE Office of Biological and Environmental Research; DOE-ERSP
[DE-FG02-06ER06-16]; Office of Science of the US Department of Energy
[DE-AC02-05CH11231]
FX This study has been funded by the US DOE Office of Biological and
Environmental Research, Environmental Remediation Science Program
(ERSP), through DOE-ERSP grant DE-FG02-06ER06-16 as part of Hanford 300
Area Integrated Field Research Challenge Project. This research used
resources of the National Energy Research Scientific Computing Center,
which is supported by the Office of Science of the US Department of
Energy under Contract No. DE-AC02-05CH11231. We thank two anonymous
reviewers for their constructive comments.
NR 48
TC 18
Z9 18
U1 1
U2 13
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1027-5606
EI 1607-7938
J9 HYDROL EARTH SYST SC
JI Hydrol. Earth Syst. Sci.
PY 2010
VL 14
IS 10
BP 1989
EP 2001
DI 10.5194/hess-14-1989-2010
PG 13
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 673ML
UT WOS:000283667500015
ER
PT J
AU Li, H
Sivapalan, M
Tian, F
Liu, D
AF Li, H.
Sivapalan, M.
Tian, F.
Liu, D.
TI Water and nutrient balances in a large tile-drained agricultural
catchment: a distributed modeling study
SO HYDROLOGY AND EARTH SYSTEM SCIENCES
LA English
DT Article
ID EAST-CENTRAL ILLINOIS; CONSTITUTIVE RELATIONSHIPS; PHOSPHORUS TRANSPORT;
UNIFYING FRAMEWORK; CONCEPTUAL-MODEL; COLD REGIONS; EXPORT; SOIL;
THERMODYNAMICS; EQUATIONS
AB This paper presents the development and implementation of a distributed model of coupled water nutrient processes, based on the representative elementary watershed (REW) approach, to the Upper Sangamon River Basin, a large, tile-drained agricultural basin located in central Illinois, mid-west of USA. Comparison of model predictions with the observed hydrological and biogeochemical data, as well as regional estimates from literature studies, shows that the model is capable of capturing the dynamics of water, sediment and nutrient cycles reasonably well. The model is then used as a tool to gain insights into the physical and chemical processes underlying the inter-and intra-annual variability of water and nutrient balances. Model predictions show that about 80% of annual runoff is contributed by tile drainage, while the remainder comes from surface runoff (mainly saturation excess flow) and subsurface runoff. It is also found that, at the annual scale nitrogen storage in the soil is depleted during wet years, and is supplemented during dry years. This carryover of nitrogen storage from dry year to wet year is mainly caused by the lateral loading of nitrate. Phosphorus storage, on the other hand, is not affected much by wet/dry conditions simply because the leaching of it is very minor compared to the other mechanisms taking phosphorous out of the basin, such as crop harvest. The analysis then turned to the movement of nitrate with runoff. Model results suggested that nitrate loading from hillslope into the channel is preferentially carried by tile drainage. Once in the stream it is then subject to in-stream denitrification, the significant spatio-temporal variability of which can be related to the variation of the hydrologic and hydraulic conditions across the river network.
C1 [Li, H.; Sivapalan, M.] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA.
[Li, H.; Liu, D.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Sivapalan, M.; Tian, F.; Liu, D.] Univ Illinois, Dept Geog, Urbana, IL 61801 USA.
[Sivapalan, M.] Delft Univ Technol, Fac Civil Engn & Geosci, Dept Water Management, NL-2600 GA Delft, Netherlands.
[Tian, F.; Liu, D.] Tsinghua Univ, State Key Lab Hydrosci & Engn, Dept Hydraul Engn, Beijing 100084, Peoples R China.
RP Li, H (reprint author), Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA.
EM hli23@illinois.edu
RI Sivapalan, Murugesu/A-3538-2008; Tian, Fuqiang/A-8233-2012; Li,
Hong-Yi/C-9143-2014; LIU, Dengfeng/D-1096-2014; Tian,
Fuqiang/M-9958-2013
OI Sivapalan, Murugesu/0000-0003-3004-3530; Li,
Hong-Yi/0000-0001-5690-3610; LIU, Dengfeng/0000-0003-3831-3865; Tian,
Fuqiang/0000-0001-9414-7019
FU University of Illinois; National Science Foundation [NSF EFRI-0835982];
National Science Foundation of China [NSFC 50779022]
FX We thank ISWS and USGS for kindly providing most of the data used in
this study. We are also grateful to Greg McIsaac, Prasanta Kalita and
Praveen Kumar for providing valuable comments and suggestions on various
aspects of the modeling. The work was funded in part by the University
of Illinois through the IACAT project (PI: Barbara Minsker), the
National Science Foundation (NSF EFRI-0835982, Ximing Cai, PI), and the
National Science Foundation of China (NSFC 50779022, Heping Hu, PI). The
financial support is gratefully acknowledged.
NR 49
TC 12
Z9 13
U1 2
U2 35
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1027-5606
J9 HYDROL EARTH SYST SC
JI Hydrol. Earth Syst. Sci.
PY 2010
VL 14
IS 11
BP 2259
EP 2275
DI 10.5194/hess-14-2259-2010
PG 17
WC Geosciences, Multidisciplinary; Water Resources
SC Geology; Water Resources
GA 687DH
UT WOS:000284754500008
ER
PT B
AU Chavez, GM
Key, BP
Zerkle, DK
Shevitz, DW
AF Chavez, Gregory M.
Key, Brian P.
Zerkle, David K.
Shevitz, Daniel W.
BE Filipe, J
Fred, A
Sharp, B
TI INFORMATION UNCERTAINTY TO COMPARE QUALITATIVE REASONING SECURITY RISK
ASSESSMENT RESULTS
SO ICAART 2010: PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON AGENTS
AND ARTIFICIAL INTELLIGENCE, VOL 1: ARTIFICIAL INTELLIGENCE
LA English
DT Proceedings Paper
CT 2nd International Conference on Agents and Artificial Intelligence
(ICAART 2010)
CY JAN 22-24, 2010
CL Valencia, SPAIN
DE Imprecise Information; Confidence; Triage application
ID FUZZY-LOGIC; FUZZINESS
AB The security risk associated with malevolent acts such as those of terrorism are often void of the historical data required for a traditional PRA. Most information available to conduct security risk assessments for these malevolent acts is obtained from subject matter experts as subjective judgements. Qualitative reasoning approaches such as approximate reasoning and evidential reasoning are useful for modeling the predicted risk from information provided by subject matter experts. Absent from these approaches is a consistent means to compare the security risk assessment results. This paper explores using entropy measures to quantify the information uncertainty associated with conflict and non-specificity in the predicted reasoning results. Extensions of previous entropy measures are presented here to quantify the non specificity and conflict associated with security risk assessment results obtained from qualitative reasoning models.
C1 [Chavez, Gregory M.; Key, Brian P.; Zerkle, David K.; Shevitz, Daniel W.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Chavez, GM (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
EM gregchavez@lanl.gov
NR 20
TC 0
Z9 0
U1 0
U2 0
PU INSTICC-INST SYST TECHNOLOGIES INFORMATION CONTROL & COMMUNICATION
PI SETUBAL
PA AVENIDA D MANUEL L, 27A 2 ESQUERDO, SETUBAL, 2910-595, PORTUGAL
BN 978-989-674-021-4
PY 2010
BP 398
EP 405
PG 8
WC Computer Science, Artificial Intelligence
SC Computer Science
GA BG8KB
UT WOS:000392361600064
ER
PT J
AU Lanza, NL
Meyer, GA
Okubo, CH
Newsom, HE
Wiens, RC
AF Lanza, N. L.
Meyer, G. A.
Okubo, C. H.
Newsom, H. E.
Wiens, R. C.
TI Evidence for debris flow gully formation initiated by shallow subsurface
water on Mars
SO ICARUS
LA English
DT Article
DE Mars; Mars, surface; Geological processes
ID POTENTIAL FORMATION MECHANISMS; LIQUID WATER; MARTIAN GULLIES; CHANNEL
INITIATION; SURFACE RUNOFF; NEAR-SURFACE; GROUND ICE; CONSTRAINTS;
LANDSLIDES; STABILITY
AB The morphologies of some martian gullies appear similar to terrestrial features associated with debris flow initiation, erosion, and deposition. On Earth, debris flows are often triggered by shallow subsurface throughflow of liquid water in slope-mantling colluvium. This flow causes increased levels of pore pressure and thus decreased shear strength, which can lead to slide failure of slope materials and Subsequent debris flow. The threshold for pore pressure-induced failure creates a distinct relationship between the contributing area supplying the subsurface flow and the slope gradient. To provide initial tests of a similar debris flow initiation hypothesis for martian gullies, measurements of the contributing areas and slope gradients were made at the channel heads of martian gullies seen in three HiRISE stereo pairs. These gullies exhibit morphologies suggestive of debris flows such as leveed channels and lobate debris fans, and have well-defined channel heads and limited evidence for multiple flows. Our results show an area-slope relationship for these martian gullies that is consistent with that observed for terrestrial gullies formed by debris flow, supporting the hypothesis that these gullies formed as the result of saturation of near-surface regolith by a liquid. This model favors a source of liquid that is broadly distributed within the source area and shallow: we suggest that such liquid could be generated by melting of broadly distributed icy materials Such as snow or permafrost. This interpretation is strengthened by observations of polygonal and mantled terrain in the study areas, which are both suggestive of near-surface ice. (C) 2009 Elsevier Inc. All rights reserved.
C1 [Lanza, N. L.; Newsom, H. E.] Univ New Mexico, Inst Meteorit, Albuquerque, NM 87131 USA.
[Okubo, C. H.] US Geol Survey, Flagstaff, AZ 86001 USA.
[Wiens, R. C.] Los Alamos Natl Lab, Space Sci & Applicat ISR 1, Los Alamos, NM 87545 USA.
RP Lanza, NL (reprint author), Univ New Mexico, Inst Meteorit, MSC03 2050,1 Univ New Mexico, Albuquerque, NM 87131 USA.
EM nlanza@umn.edu
FU NASA [NNX08AL74G]
FX Thanks to Ianko Tchoukanski for making Easy Calculate 5.0 available, to
Marty Gilmore for assistance on previous gully studies, and to two
anonymous reviewers for their helpful input. N.L.L. wishes to
acknowledge the support of a NASA Graduate Student Research Program
grant and a Zonta International Amelia Earhart Fellowship. H.N. was
supported by NASA Planetary Geology and Geophysics Program Grant
NNX08AL74G.
NR 65
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U1 2
U2 5
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0019-1035
J9 ICARUS
JI Icarus
PD JAN
PY 2010
VL 205
IS 1
SI SI
BP 103
EP 112
DI 10.1016/j.icarus.2009.04.014
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 547CA
UT WOS:000273861800007
ER
PT S
AU Maris, P
Sosonkina, M
Vary, JP
Ng, E
Yang, C
AF Maris, Pieter
Sosonkina, Masha
Vary, James P.
Ng, Esmond
Yang, Chao
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI Scaling of ab-initio nuclear physics calculations on multicore computer
architectures
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE hybrid MPI/OpenMP; scaling; MFDn
ID SHELL-MODEL
AB We discuss the scaling behavior of a state-of-the-art Configuration Interaction code for nuclear physics on modern multicore computer architectures. In the CI approach, the quantum many-body problem is expressed as a large sparse symmetric eigenvalue problem, of which the lowest eigenvalues and eigenvectors have to be computed. We compare the performance of the pure MPI version with the hybrid MPI/OpenMP code on Cray XT4 and XT5 platforms. For large core counts (typically 5,000 and above), the hybrid version is more efficient than pure MPI. (C) 2010 Published by Elsevier Ltd.
C1 [Maris, Pieter; Vary, James P.] Iowa State Univ, Dept Phys, Ames, IA 50011 USA.
[Sosonkina, Masha] Iowa State Univ, Ames Lab, Scalable Comp Lab, Ames, IA 50011 USA.
[Ng, Esmond; Yang, Chao] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Maris, P (reprint author), Iowa State Univ, Dept Phys, Ames, IA 50011 USA.
EM pmaris@iastate.edu
RI Dongarra, Jack/E-3987-2014
FU Iowa State University [DE-AC02-07CH11358]; U.S. Department of Energy
[DE-FC02-09ER41582, DE-FG02-87ER40371, DE-AC02-05CH11231]
FX The work was supported in part by Iowa State University under the
contract DE-AC02-07CH11358 with the U.S. Department of Energy, by the
U.S. Department of Energy under the grants DE-FC02-09ER41582 (UNEDF
SciDAC-2) and DE-FG02-87ER40371 (Division of Nuclear Physics) and by the
Director, Office of Science, Division of Mathematical, Information, and
Computational Sciences of the U.S. Department of Energy under contract
number DE-AC02-05CH11231. Computational resources were provided by DOE
through the National Energy Research Supercomputer Center (NERSC) and
through an INCITE award (David Dean, PI).
NR 23
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Z9 52
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 97
EP 106
DI 10.1016/j.procs.2010.04.012
PG 10
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600011
ER
PT S
AU Manson, JR
Wang, DL
Wallis, SG
Page, R
Laielli, MJ
AF Manson, J. Russell
Wang, Dali
Wallis, Steve G.
Page, Richard
Laielli, Michael J.
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI A massively parallel semi-Lagrangian algorithm for solving the transport
equation
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE advection; semi-lagrangian; parallel; MPI; scalability
ID ONE-DIMENSIONAL ADVECTION; NUMERICAL-SIMULATION; DIFFUSION; MODELS
AB The scalar transport equation underpins many models employed in science, engineering, technology and business. Application areas include, but are not restricted to, pollution transport, weather forecasting, video analysis and encoding (the optical flow equation), options and stock pricing (the Black-Scholes equation) and spatially explicit ecological models. Unfortunately finding numerical solutions to this equation which are fast and accurate is not trivial. Moreover, finding such numerical algorithms that can be implemented on high performance computer architectures efficiently is challenging. In this paper the authors describe a massively parallel algorithm for solving the advection portion of the transport equation. We present an approach here which is different to that used in most transport models and which we have tried and tested for various scenarios. The approach employs an intelligent domain decomposition based on the vector field of the system equations and thus automatically partitions the computational domain into algorithmically autonomous regions. The solution of a classic pure advection transport problem is shown to be conservative, monotonic and highly accurate at large time steps. Additionally we demonstrate that the algorithm is highly efficient for high performance computer architectures and thus offers a route towards massively parallel application. (C) 2010 Published by Elsevier Ltd.
C1 [Manson, J. Russell; Page, Richard; Laielli, Michael J.] Richard Stockton Coll New Jersey, POB 195, Pomona, NJ 08240 USA.
[Wang, Dali] Oak Ridge Natl Lab, Oak Ridge, TN 37931 USA.
[Wallis, Steve G.] Heriot Watt Univ, Edinburgh EH14 4AS, Midlothian, Scotland.
RP Manson, JR (reprint author), Richard Stockton Coll New Jersey, POB 195, Pomona, NJ 08240 USA.
EM russell.manson@stockton.edu
RI Wang, Dali /B-4829-2012
FU Richard Stockton College of New Jersey [AY '09-'10]
FX The authors would like to acknowledge Professor David Joiner and Kean
University for making the PUMA cluster available to us for model testing
and model runs. Professor Joiner also has been helpful in explaining to
us the details of the cluster. The first author would also like to thank
the Richard Stockton College of New Jersey for supporting this work in
the form of a R&PD grant (AY '09-'10).
NR 9
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U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 327
EP 335
DI 10.1016/j.procs.2010.04.036
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600035
ER
PT S
AU Lipnikov, K
Moulton, JD
Svyatskiy, D
AF Lipnikov, Konstantin
Moulton, J. David
Svyatskiy, Daniil
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI A multiscale multilevel mimetic (M-3) method for well-driven flows in
porous media
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE two-phase flow; well modeling; tensorial media; mimetic finite
differences
ID FINITE-ELEMENT-METHOD; ELLIPTIC PROBLEMS; MESHES
AB The multiscale multilevel mimetic (M-3) method was designed in [13] for the accurate modeling of two-phase flows in highly heterogeneous porous media on general polygonal meshes. In this article, it is extended to well-driven flows in porous media. We demonstrate its ability to treat accurately non-orthogonal locally-refined meshes and tensorial material properties. (C) 2010 Published by Elsevier Ltd.
C1 [Lipnikov, Konstantin; Moulton, J. David; Svyatskiy, Daniil] Los Alamos Natl Lab, Appl Math & Plasma Phys Grp, Los Alamos, NM 87545 USA.
RP Lipnikov, K (reprint author), Los Alamos Natl Lab, Appl Math & Plasma Phys Grp, MS B284, Los Alamos, NM 87545 USA.
EM lipnikov@lanl.gov; moulton@lanl.gov; dasvyat@lanl.gov
NR 17
TC 3
Z9 3
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 771
EP 779
DI 10.1016/j.procs.2010.04.083
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600082
ER
PT S
AU Gray, GA
Fowler, K
Griffin, JD
AF Gray, G. A.
Fowler, K.
Griffin, J. D.
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI Hybrid Optimization Schemes for Simulation-Based Problems
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE simulation-based; derivative-free; hybrid; hydraulic capture; pattern
search
ID PARALLEL PATTERN SEARCH; DERIVATIVE-FREE OPTIMIZATION; NONLINEAR
OPTIMIZATION; ALGORITHMS; SURROGATE
AB The inclusion of computer simulations in the study and design of complex engineering systems has created a need for efficient approaches to simulation-based optimization. For example, in water resources management problems, optimization problems regularly consist of objective functions and constraints that rely on output from a PDE-based simulator. Various assumptions can be made to simplify either the objective function or the physical system so that gradient-based methods apply, however the incorporation of realistic objection functions can be accomplished given the availability of derivative-free optimization methods. A wide variety of derivative-free methods exist and each method has both advantages and disadvantages. Therefore, to address such problems, we propose a hybrid approach, which allows the combining of beneficial elements of multiple methods in order to more efficiently search the design space. Specifically, in this paper, we illustrate the capabilities of two novel algorithms; one which hybridizes pattern search optimization with Gaussian Process emulation and the other which hybridizes pattern search and a genetic algorithm. We describe the hybrid methods and give some numerical results for a hydrological application which illustrate that the hybrids find an optimal solution under conditions for which traditional optimal search methods fail. (C) 2010 Published by Elsevier Ltd.
C1 [Gray, G. A.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Fowler, K.] Clarkson Univ, Potsdam, NY USA.
[Griffin, J. D.] SAS Inst, Cary, NC USA.
RP Gray, GA (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
EM gagray@sandia.gov; kfowler@clarkson.edu
NR 40
TC 3
Z9 4
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1343
EP 1351
DI 10.1016/j.procs.2010.04.150
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600149
ER
PT S
AU Rouson, DWI
Xia, J
Xu, XF
AF Rouson, Damian W. I.
Xia, Jim
Xu, Xiaofeng
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI Object construction and destruction design patterns in Fortran 2003
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE object-oriented; Fortran 2003; abstract factory; factory method; object
pattern; design pattern; Trilinos; Morfeus; ForTrilinos
AB This paper presents object-oriented design patterns in the context of object construction and destruction. The examples leverage the newly supported object-oriented features of Fortran 2003. We describe from the client perspective two patterns articulated by Gamma et al. [1]: abstract factory and factory method. We also describe from the implementation perspective one new pattern: the object pattern. We apply the Gamma et al. patterns to solve a partial differential equation, and we discuss applying the new pattern to a quantum vortex dynamics code. Finally, we address consequences and describe the use of the patterns in two open-source software projects: ForTrilinos and Morfeus. (C) 2010 Published by Elsevier Ltd.
C1 [Rouson, Damian W. I.] Sandia Natl Labs, Livermore, CA 94550 USA.
[Xia, Jim] IBM Corp, Toronto, ON, Canada.
[Xu, Xiaofeng] CUNY City Coll, New York, NY 10031 USA.
RP Rouson, DWI (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
EM rouson@sandia.gov
FU Office of Naval Research [61-8804065]; United States Department of
Energy's National Nuclear security Administration [DE-AC04-94AL85000]
FX The first author gratefully acknowledges the support of the Office of
Naval Research via contract 61-8804065. Sandia is a multiprogram
laboratory opearted by Sandia Corporation, a Lockheed Martin Company,
for the United States Department of Energy's National Nuclear security
Administration under DE-AC04-94AL85000.
NR 24
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U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1489
EP 1498
DI 10.1016/j.procs.2010.04.166
PG 10
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600165
ER
PT S
AU Kuznetsov, V
Evans, D
Metson, S
AF Kuznetsov, Valentin
Evans, Dave
Metson, Simon
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI The CMS Data Aggregation System
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE Meta-data; data aggregation; information discovery; HEP
AB Meta-data plays a significant role in large modern enterprises, research experiments and digital libraries where it comes from many different sources and is distributed in a variety of digital formats. It is organized and managed by constantly evolving software using both relational and non-relational data sources. Even though we can apply an information retrieval approach to non-relational data sources, we can't do so for relational ones, where information is accessed via a pre-established set of data-services.
Here we discuss a new data aggregation system which consumes, indexes and delivers information from different relational and non-relational data sources to answer cross data-service queries and explore meta-data associated with petabytes of experimental data. We combine the simplicity of keyword-based search with the precision of RDMS under the new system. The aggregated information is collected from various sources, allowing end-users to place dynamic queries, get precise answers and trigger information retrieval on demand. Based on the use cases of the CMS experiment, we have performed a set of detailed, large scale tests the results of which we present in this paper. (C) 2010 Published by Elsevier Ltd.
C1 [Kuznetsov, Valentin] Cornell Univ, Ithaca, NY 14853 USA.
[Evans, Dave] Fermilab Natl Accelerator Lab, Batavia, IL USA.
[Metson, Simon] Univ Bristol, Bristol, Avon, England.
RP Kuznetsov, V (reprint author), Cornell Univ, Ithaca, NY 14853 USA.
EM vkuznet@gmail.com
FU National Science Foundation [PHY-0757894]; Department of Energy of the
United States of America
FX This work was supported by the National Science Foundation, contract No.
PHY-0757894, and Department of Energy of the United States of America.
NR 12
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U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1529
EP 1537
DI 10.1016/j.procs.2010.04.172
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600171
ER
PT S
AU Rubel, O
Ahern, S
Bethel, EW
Biggin, MD
Childs, H
Cormier-Michel, E
DePace, A
Eisen, MB
Fowlkes, CC
Geddes, CGR
Hagen, H
Hamann, B
Huang, MY
Keranen, SVE
Knowles, DW
Hendriks, CLL
Malik, J
Meredith, J
Messmer, P
Prabhat
Ushizima, D
Weber, GH
Wu, KS
AF Ruebel, Oliver
Ahern, Sean
Bethel, E. Wes
Biggin, Mark D.
Childs, Hank
Cormier-Michel, Estelle
DePace, Angela
Eisen, Michael B.
Fowlkes, Charless C.
Geddes, Cameron G. R.
Hagen, Hans
Hamann, Bernd
Huang, Min-Yu
Keraenen, Soile V. E.
Knowles, David W.
Hendriks, Cris L. Luengo
Malik, Jitendra
Meredith, Jeremy
Messmer, Peter
Prabhat
Ushizima, Daniela
Weber, Gunther H.
Wu, Kesheng
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI Coupling visualization and data analysis for knowledge discovery from
multi-dimensional scientific data
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE scientific visualization; information visualization; data analysis;
multi-dimensional data; laser wakefield particle acceleration; 3D gene
expression
ID GENE-EXPRESSION; ACCELERATOR
AB Knowledge discovery from large and complex scientific data is a challenging task. With the ability to measure and simulate more processes at increasingly finer spatial and temporal scales, the growing number of data dimensions and data objects presents tremendous challenges for effective data analysis and data exploration methods and tools. The combination and close integration of methods from scientific visualization, information visualization, automated data analysis, and other enabling technologies - such as efficient data management- supports knowledge discovery from multi-dimensional scientific data. This paper surveys two distinct applications in developmental biology and accelerator physics, illustrating the effectiveness of the described approach. (C) 2010 Published by Elsevier Ltd.
C1 [Ruebel, Oliver; Bethel, E. Wes; Childs, Hank; Hamann, Bernd; Prabhat; Ushizima, Daniela; Weber, Gunther H.; Wu, Kesheng] Lawrence Berkeley Lab, Computat Res Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
RP Rubel, O (reprint author), Lawrence Berkeley Lab, Computat Res Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM oruebel@lbl.gov
RI Luengo Hendriks, Cris L./B-1097-2008;
OI Luengo Hendriks, Cris L./0000-0002-8279-1760; Eisen,
Michael/0000-0002-7528-738X; Weber, Gunther/0000-0002-1794-1398
FU National Institutes of Health [GM70444]; Lawrence Berkeley National
Laboratory (LBNL) through the Laboratory Directed Research Development
(LDRD); Department of Energy [DE-AC02-05CH11231]; International Research
Training Group [IRTG 1131]; German Research Foundation (DFG); University
of Kaiserslautern, Germany; Director, Office of Science, Offices of
HighEn ergy Physics and Advanced Scientific Computing Research, of the
U.S. Department of Energy [DE-AC02-05CH11231]; Scientific Discovery
through Advanced Computing (SciDAC); Visualization and Analytics Center
for Enabling Technologies (VACET); National Energy Research Scientific
Computing Center (NERSC); Office of Science of the U.S. Department of
Energy [DE-AC02-05CH11231]
FX The work concerning the analysis of 3D gene expression data was
supported by the National Institutes of Health through grant GM70444 and
by Lawrence Berkeley National Laboratory (LBNL) through the Laboratory
Directed Research Development (LDRD) program. Research performed at LBNL
was also supported by the Department of Energy under contract
DE-AC02-05CH11231. In addition, we gratefully acknowledge the support of
an International Research Training Group (IRTG 1131) grant provided by
the German Research Foundation (DFG), awarded to the University of
Kaiserslautern, Germany. The work concerning the analysis of LWFA data
was supported by the Director, Office of Science, Offices of HighEn ergy
Physics and Advanced Scientific Computing Research, of the U.S.
Department of Energy under Contract No. DE-AC02-05CH11231 through the
Scientific Discovery through Advanced Computing (SciDAC) programs
Visualization and Analytics Center for Enabling Technologies (VACET) and
the COMPASS project. This research used resources of the National Energy
Research Scientific Computing Center (NERSC), which is supported by the
Office of Science of the U.S. Department of Energy under Contract No.
DE-AC02-05CH11231. We thank the members of IDAV at UC Davis, the BDTNP
and LOASIS at LBNL, the IRTG 1131, LBNLs Visualization Group, and the
VORPAL team.
NR 22
TC 2
Z9 3
U1 0
U2 21
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1751
EP 1758
DI 10.1016/j.procs.2010.04.197
PG 8
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600196
PM 23762211
ER
PT S
AU Buntinas, D
Malozemoff, AJ
Utke, J
AF Buntinas, Darius
Malozemoff, Alexis J.
Utke, Jean
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI Efficient generated libraries for asynchronous derivative computation
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE automatic differentiation; operator overloading; generated code; loop
unrolling; asynchronous computation
ID TENSORS
AB The computation of derivatives via automatic differentiation is a valuable technique in many science and engineering applications. While the implementation of automatic differentiation via source transformation yields the highest-efficiency results, the implementation via operator overloading remains a viable alternative for some application contexts, such as the computation of higher-order derivatives or in cases where C++ still proves to be too complicated for the currently available source transformation tools. The Rapsodia code generator creates libraries that overload intrinsics for derivative computation. In this paper, we discuss modifications to Rapsodia to improve the efficiency of the generated code, first via limited loop unrolling and second via multithreaded asynchronous derivative computation. We introduce the approaches and present runtime results.
C1 [Buntinas, Darius; Utke, Jean] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
[Malozemoff, Alexis J.] McGill Univ, Montreal, PQ H3A 2T5, Canada.
[Utke, Jean] Univ Chicago, Computat Inst, Chicago, IL 60637 USA.
RP Utke, J (reprint author), Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
EM buntinas@mcs.anl.gov; amalozemoff1@gmail.com; utke@mcs.anl.gov
FU U.S. Department of Energy [DE-AC02-06CH11357]
FX We thank Paul Hovland for valuable hints to Alexis Malozemoff during his
internship at Argonne in the summer of 2009. This work was supported in
part by the U.S. Department of Energy, under contract DE-AC02-06CH11357.
NR 14
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1779
EP 1787
DI 10.1016/j.procs.2010.04.200
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600199
ER
PT S
AU Schanen, M
Naumann, U
Hascoet, L
Utke, J
AF Schanen, Michel
Naumann, Uwe
Hascoet, Laurent
Utke, Jean
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI Interpretative Adjoints for Numerical Simulation Codes using MPI
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE Adjoint MPI; Automatic Differentiation; Source Transformation
AB An essential performance and correctness factor in numerical simulation and optimization is access to exact derivative information. Adjoint derivative models are particularly useful if a function's number of inputs far exceeds the number of outputs. The propagation of adjoints requires the data flow to be reversed, implying the reversal of all communication in programs that use message-passing. This paper presents recent advances made in developing the adjoint MPI library AMPI. The described proof of concept aims to serve as the basis for coupling other overloading AD tools with AMPI. We illustrate its use in the context of a specific overloading tool for algorithmic differentiation (AD) for C++ programs. A simplified but representative application problem is discussed as a case study. (C) 2010 Published by Elsevier Ltd.
C1 [Schanen, Michel; Naumann, Uwe] Rhein Westfal TH Aachen, LuFG Informat Software & Tools Computat Engn 12, Aachen, Germany.
[Hascoet, Laurent] INRIA, Projet TROP, Sophia Antipolis, France.
[Utke, Jean] Argonne Natl Lab, Math & Comp Sci Div, Argonne, IL USA.
RP Schanen, M (reprint author), Rhein Westfal TH Aachen, LuFG Informat Software & Tools Computat Engn 12, Aachen, Germany.
EM schanen@stce.rwth-aachen.de; naumann@stce.rwth-aachen.de;
laurent.hascoet@sophia.inria.fr; utke@mcs.anl.gov
FU Fond National de la Recherche of Luxembourg [PHD-09-145]
FX This work was supported by the Fond National de la Recherche of
Luxembourg under grant PHD-09-145.
NR 13
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1819
EP 1827
DI 10.1016/j.procs.2010.04.204
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600203
ER
PT S
AU Narayanan, SHK
Norris, B
Winnicka, B
AF Narayanan, Sri Hari Krishna
Norris, Boyana
Winnicka, Beata
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI ADIC2: Development of a component source transformation system for
differentiating C and C plus
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE automatic differentiation; source transformation; ADIC2
ID AUTOMATIC DIFFERENTIATION
AB We present a new tool, ADIC2, for automatic differentiation (AD) of C and C++ code through source-to-source transformation. ADIC2 is the successor of the ADIC differentiation tool, which supports forward mode AD of C and a small subset of C++. ADIC2 was completely redesigned and reimplemented as part of the OpenAD software framework, resulting in a robust, flexible, and extensible tool for differentiating C and some features of C++, with plans for full support of C++ in the near future. We discuss some of the challenges in creating AD tools for C and C++ in general and describe the component approach employed in the design and implementation of ADIC2.
C1 [Narayanan, Sri Hari Krishna; Norris, Boyana] Argonne Natl Lab, Div Math & Comp Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
RP Narayanan, SHK (reprint author), Argonne Natl Lab, Div Math & Comp Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM snarayan@mcs.anl.gov; norris@mcs.anl.gov
RI Dongarra, Jack/E-3987-2014
FU Office of Advanced Scientific Computing Research; Office of Science;
U.S. Dept. of Energy [DE-AC02-06CH11357]
FX This work was supported by the Office of Advanced Scientific Computing
Research, Office of Science, U.S. Dept. of Energy, under Contract
DE-AC02-06CH11357. We thank Jean Utke of the University of Chicago for
his invaluable suggestions and help.
NR 22
TC 7
Z9 7
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1839
EP 1847
DI 10.1016/j.procs.2010.04.206
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600205
ER
PT S
AU Loubere, R
Maire, PH
Shashkov, M
AF Loubere, Raphael
Maire, Pierre-Henri
Shashkov, Mikhail
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI 2nd Workshop on New Trends in Numerical Methods for Multi-Material
Compressible Fluid Flows
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE Lagrangian hydrodynamics; ALE; multi-material flows; compressible flows
AB This workshop follows on from the successful first one held in San Diego during the SIAM Annual Meeting 2008. It provides a forum for exploring the new trends in numerical methods devoted to the simulation of multi-material compressible fluid flows. (C) 2010 Published by Elsevier Ltd.
C1 [Loubere, Raphael] Univ Toulouse, Inst Math Toulouse, Toulouse, France.
[Maire, Pierre-Henri] Univ Bordeaux 1, CEA, CNRS, UMR CELIA, Bordeaux, France.
[Shashkov, Mikhail] Los Alamos Natl Lab, Div Theoret, Group T5, Los Alamos, NM 87545 USA.
RP Loubere, R (reprint author), Univ Toulouse, Inst Math Toulouse, Toulouse, France.
EM raphael.loubere@math.univ-toulouse.fr; maire@celia.u-bordeaux1.fr;
shashkov@lanl.gov
OI Maire, Pierre-Henri/0000-0002-4180-8220
NR 0
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1877
EP +
DI 10.1016/j.procs.2010.04.210
PG 2
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600209
ER
PT S
AU Berndt, M
Kucharik, M
Shashkov, MJ
AF Berndt, Markus
Kucharik, Milan
Shashkov, Mikhail J.
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI Using the feasible set method for rezoning in ALE
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE mesh smoothing; arbitrary Lagrangian Eulerian method; ALE; rezoning;
feasible set
ID EULERIAN COMPUTING METHOD; FLOW SPEEDS; OPTIMIZATION; MESH
AB One of the steps in the Arbitrary Lagrangian Eulerian (ALE) algorithm is the improvement of the quality of the computational mesh. This step, commonly referred to as rezoning, is essential for maintaining a mesh that does not become invalid during a simulation. In this paper, we present a new robust and computationally efficient 2D mesh relaxation method. This feasible set method is a geometric method for finding the convex polygon that represents the region of coordinates that a vertex in a mesh can occupy while the mesh around it remains valid. After the feasible set has been computed for a vertex in a mesh, a new vertex location can be chosen that lies inside this feasible set. As a result, the mesh after relaxation is guaranteed to be valid. We present an example ALE simulation, that highlights the robustness of the feasible set method when used as a rezoning method in ALE. (C) 2010 Published by Elsevier Ltd.
C1 [Berndt, Markus] Los Alamos Natl Lab, Computat Phys & Methods Grp, Mail Stop D413, Los Alamos, NM 87545 USA.
[Kucharik, Milan] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Dept Phys Elect, Prague 11519 1, Czech Republic.
[Shashkov, Mikhail J.] Los Alamos Natl Lab, Appl Math & Plasma Phys Grp, Los Alamos, NM 87545 USA.
RP Berndt, M (reprint author), Los Alamos Natl Lab, Computat Phys & Methods Grp, Mail Stop D413, Los Alamos, NM 87545 USA.
EM berndt@lanl.gov; kucharik@newton.fjfi.cvut.cz; shashkov@lanl.gov
RI Berndt, Markus/F-3185-2013;
OI Berndt, Markus/0000-0001-5360-6848
FU US Department of Energy by Los Alamos National Laboratory
[DE-AC52-06NA25396, LA-UR 09-07380]
FX This work was performed under the auspices of the US Department of
Energy by Los Alamos National Laboratory under contract
DE-AC52-06NA25396, LA-UR 09-07380.
NR 10
TC 5
Z9 5
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1879
EP 1886
DI 10.1016/j.procs.2010.04.211
PG 8
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600210
ER
PT S
AU Barlow, A
Burton, D
Shashkov, M
AF Barlow, A.
Burton, D.
Shashkov, M.
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI Compatible, Energy and Symmetry Preserving 2D Lagrangian Hydrodynamics
in rz - Cylindrical Coordinates
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE Lagrangian hydrodynamics; 2D axisymmetric rz; spatial symmetry;
conservation
AB We present a new discretization for 2D Lagrangian hydrodynamics in rz geometry (cylindrical coordinates), which is total energy conserving and symmetry preserving. (C) 2010 Published by Elsevier Ltd.
C1 [Shashkov, M.] Los Alamos Natl Lab, Div Theoret, T-5 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Barlow, A.] AWE Aldermaston, Computat Phys Grp, Reading RG7 4PR, Berks, England.
[Burton, D.] Los Alamos Natl Lab, X Computat Phys Div, XCP 4, Los Alamos, NM 87545 USA.
RP Shashkov, M (reprint author), Los Alamos Natl Lab, Div Theoret, T-5 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM shashkov@lanl.gov
NR 4
TC 6
Z9 7
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1887
EP 1895
DI 10.1016/j.procs.2010.04.212
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600211
ER
PT S
AU Lipnikov, K
Shashkov, M
AF Lipnikov, Konstantin
Shashkov, Mikhail
GP ICCS
BE Sloot, PMA
Albada, GDV
Dongarra, J
TI A mimetic tensor artificial viscosity method for arbitrary polyhedral
meshes
SO ICCS 2010 - INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE,
PROCEEDINGS
SE Procedia Computer Science
LA English
DT Proceedings Paper
CT International Conference on Computational Science (ICCS)
CY MAY 31-JUN 02, 2010
CL Univ Amsterdam, Amsterdam, NETHERLANDS
SP NWO, Netherlands Org Sci Res, KNAW, Royal Netherlands Acad Arts & Sci, Elsevier, Univ Amsterdam
HO Univ Amsterdam
DE mimetic finite differences; Lagrangian hydrodynamics; artificial
viscosity
AB We construct a new mimetic tensor artificial viscosity on general polyhedral meshes. The tensor viscosity is designed as a discretization of the differential operator div (mu del u) with the full fourth-order tensor mu. We demonstrate performance of the new artificial viscosity on a set of test problems. (C) 2010 Published by Elsevier Ltd.
C1 [Lipnikov, Konstantin; Shashkov, Mikhail] Los Alamos Natl Lab, Appl Math & Plasma Phys Grp, Los Alamos, NM 87545 USA.
RP Lipnikov, K (reprint author), Los Alamos Natl Lab, Appl Math & Plasma Phys Grp, MS B284, Los Alamos, NM 87545 USA.
EM lipnikov@lanl.gov; shashkov@lanl.gov
NR 17
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1877-0509
J9 PROCEDIA COMPUT SCI
PY 2010
VL 1
IS 1
BP 1915
EP 1923
DI 10.1016/j.procs.2010.04.215
PG 9
WC Computer Science, Theory & Methods
SC Computer Science
GA BQV31
UT WOS:000281951600214
ER
PT S
AU Moody, NR
Reedy, ED
Corona, E
Adams, DP
Kennedy, MS
Cordill, MJ
Bahr, DF
AF Moody, N. R.
Reedy, E. D., Jr.
Corona, E.
Adams, D. P.
Kennedy, M. S.
Cordill, M. J.
Bahr, D. F.
BE Bremand, F
TI Buckle Driven Delamination in Thin Hard Film Compliant Substrate Systems
SO ICEM 14: 14TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS, VOL 6
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 14th International Conference on Experimental Mechanics (ICEM14)
CY JUL 04-09, 2010
CL Poitiers, FRANCE
SP European Assoc Expt Mech (EURASEM), French Soc Mech (AFM), Grp Adv Methods Stress Anal (GAMAC), Natl Ctr Sci Res (CNRS), Univ Poitiers, British Soc Stain Measurement (BSSM), Soc Expt Mech, Japanese Soc Expt Mech (JSEM)
AB Deformation and fracture of thin films on compliant substrates are key factors constraining the performance of emerging flexible substrate devices. [1-3] These systems often contain layers of thin polymer, ceramic and metallic films and stretchable interconnects where differing properties induce high normal and shear stresses. [4] As long as the films remain bonded to the substrates, they may deform far beyond their freestanding form. Once debonded, substrate constraint disappears leading to film failure. [3] Experimentally it is very difficult to measure properties in these systems at sub-micron and nanoscales. Theoretically it is very difficult to determine the contributions from the films, interfaces, and substrates. As a result our understanding of deformation and fracture behavior in compliant substrate systems is limited. This motivated a study of buckle driven delamination of thin hard tungsten films on pure PMMA substrates.
The films were sputter deposited to thicknesses of 100 nm, 200 nm, and 400 nm with a residual compressive stress of 1.7 GPa. An aluminum oxide interlayer was added on several samples to alter interfacial composition. Buckles formed spontaneously on the PMMA substrates following film deposition. On films without the aluminum oxide interlayer, an extensive network of small telephone cord buckles formed following deposition, interspersed with regions of larger telephone cord buckles. (Figure 1) On films with an aluminum oxide interlayer, telephone cord buckles formed creating a uniform widely spaced pattern. Through-substrate optical observations revealed matching buckle patterns along the film-substrate interface indicating that delamination occurred for large and small buckles with and without an interlayer. The coexistence of large and small buckles on the same substrate led to two distinct behaviors as shown in Figure 2 where normalized buckle heights are plotted against normalized film stress. The behaviors deviate significantly from behavior predicted by rigid elastic solutions.
To address this issue we developed a finite element analysis technique that employed a cohesive zone model to simulate interfacial crack growth. Specifying the traction-separation relationship, cohesive strength, and work of separation along with film thickness, film stress, and film and substrate properties, buckle width and height were determined as a function of interfacial toughness. The simulations indicate that an analysis based on rigid substrate solutions significantly underestimate toughness for prescribed buckle widths: a result consistent with an analysis by Yu and Hutchinson [5] that pieced together a solution based on non-linear plate theory with a solution for the linear film on substrate problem. More importantly, the results defined a lower limiting bound to seemingly disparate buckle deflection data (Figure 2). The substrate compliance is controlling behavior. Comparison of the experimental results with cohesive zone simulations suggests that the two buckle behaviors are associated with different levels of substrate yielding. In this presentation we will use the results to show how substrate compliance and deformation affect delamination and buckling of films on compliant substrates and provide a means to predict device performance.
C1 [Moody, N. R.] Sandia Natl Labs, Livermore, CA 94550 USA.
RP Moody, NR (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA.
NR 5
TC 1
Z9 1
U1 3
U2 12
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2010
VL 6
AR 40006
DI 10.1051/epjconf/20100640006
PG 2
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA BVK40
UT WOS:000291704000275
ER
PT S
AU Reu, PL
AF Reu, P. L.
BE Bremand, F
TI Experimental Validation of 2D Uncertainty Quantification for Digital
Image Correlation
SO ICEM 14: 14TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS, VOL 6
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 14th International Conference on Experimental Mechanics (ICEM14)
CY JUL 04-09, 2010
CL Poitiers, FRANCE
SP European Assoc Expt Mech (EURASEM), French Soc Mech (AFM), Grp Adv Methods Stress Anal (GAMAC), Natl Ctr Sci Res (CNRS), Univ Poitiers, British Soc Stain Measurement (BSSM), Soc Expt Mech, Japanese Soc Expt Mech (JSEM)
ID CELL ALUMINUM FOAMS; MECHANICAL-BEHAVIOR; ALLOY FOAMS; DEFORMATION;
FIELD
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Reu, PL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 23
TC 1
Z9 1
U1 1
U2 6
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2010
VL 6
AR 31003
DI 10.1051/epjconf/20100631003
PG 10
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA BVK40
UT WOS:000291704000200
ER
PT S
AU Sumali, H
AF Sumali, Hartono
BE Bremand, F
TI Measuring Impact Rebound with Photography
SO ICEM 14: 14TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS, VOL 6
SE EPJ Web of Conferences
LA English
DT Proceedings Paper
CT 14th International Conference on Experimental Mechanics (ICEM14)
CY JUL 04-09, 2010
CL Poitiers, FRANCE
SP European Assoc Expt Mech (EURASEM), French Soc Mech (AFM), Grp Adv Methods Stress Anal (GAMAC), Natl Ctr Sci Res (CNRS), Univ Poitiers, British Soc Stain Measurement (BSSM), Soc Expt Mech, Japanese Soc Expt Mech (JSEM)
AB To study the rebound of a sphere colliding against a flat wall, a test setup was developed where the sphere is suspended with strings as a pendulum, elevated, and gravity-released to impact the wall. The motion of the sphere was recorded with a highspeed camera and traced with an image-processing program. From the speed of the sphere before and after each collision, the coefficient of restitution was computed, and shown to be a function of impact speed as predicted analytically.
C1 Sandia Natl Labs, Component Sci & Mech Dept, Albuquerque, NM 87185 USA.
RP Sumali, H (reprint author), Sandia Natl Labs, Component Sci & Mech Dept, MS 1070,POB 5800, Albuquerque, NM 87185 USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU E D P SCIENCES
PI CEDEX A
PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A,
FRANCE
SN 2100-014X
J9 EPJ WEB CONF
PY 2010
VL 6
AR 41002
DI 10.1051/epjconf/20100641002
PG 4
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA BVK40
UT WOS:000291704000281
ER
PT J
AU Rubel, O
Weber, GH
Huang, MY
Bethel, EW
Biggin, MD
Fowlkes, CC
Hendriks, CLL
Keranen, SVE
Eisen, MB
Knowles, DW
Malik, J
Hagen, H
Hamann, B
AF Ruebel, Oliver
Weber, Gunther H.
Huang, Min-Yu
Bethel, E. Wes
Biggin, Mark D.
Fowlkes, Charless C.
Hendriks, Cris L. Luengo
Keraenen, Soile V. E.
Eisen, Michael B.
Knowles, David W.
Malik, Jitendra
Hagen, Hans
Hamann, Bernd
TI Integrating Data Clustering and Visualization for the Analysis of 3D
Gene Expression Data
SO IEEE-ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS
LA English
DT Article
DE Bioinformatics visualization; multimodal visualization; integrating
Infovis/Scivis; visual data mining; three-dimensional gene expression;
data clustering; cluster visualization; gene expression pattern;
temporal expression variation; gene regulation; spatial expression
pattern
ID INFORMATION; VALIDATION; SYSTEM
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.
C1 [Ruebel, Oliver; Weber, Gunther H.; Bethel, E. Wes] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
[Ruebel, Oliver; Huang, Min-Yu; Hamann, Bernd] Univ Calif Davis, Inst Data Anal & Visualizat, Davis, CA 95616 USA.
[Ruebel, Oliver] Univ Kaiserslautern, IRTG 1131, D-67653 Kaiserslautern, Germany.
[Weber, Gunther H.; Huang, Min-Yu; Hamann, Bernd] Univ Calif Davis, Dept Comp Sci, Davis, CA 95616 USA.
[Biggin, Mark D.; Keraenen, Soile V. E.] Univ Calif Berkeley, Lawrence Berkeley Lab, Genom Div, Berkeley, CA 94720 USA.
[Fowlkes, Charless C.] Univ Calif Irvine, Donald Bren Sch Informat & Comp Sci, Irvine, CA 92697 USA.
[Hendriks, Cris L. Luengo] Swedish Univ Agr Sci, Ctr Image Anal, SE-75105 Uppsala, Sweden.
[Eisen, Michael B.] Univ Calif Berkeley, Howard Hughes Med Inst, Berkeley, CA 94720 USA.
[Eisen, Michael B.] Univ Calif Berkeley, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
[Knowles, David W.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
[Malik, Jitendra] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA.
RP Rubel, O (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, 1 Cyclotron Rd,Mail Stop 50F-1650, Berkeley, CA 94720 USA.
EM ORuebel@lbl.gov; GHWeber@lbl.gov; myhuang@ucdavis.edu; EWBethel@lbl.gov;
MDBiggin@lbl.gov; fowlkes@ics.uci.edu; cris@cb.uu.se;
SVEKeranen@lbl.gov; MBEisen@lbl.gov; DWKnowles@lbl.gov;
malik@eecs.berkeley.edu; hagen@informatik.uni-kl.de;
hamann@cs.ucdavis.edu
RI Luengo Hendriks, Cris L./B-1097-2008;
OI Luengo Hendriks, Cris L./0000-0002-8279-1760; Eisen,
Michael/0000-0002-7528-738X; Weber, Gunther/0000-0002-1794-1398
FU National Institutes of Health [GM70444]; US National Science Foundation
[ACI 9624034, ACI 9982251]; Lawrence Berkeley National Laboratory (LBNL)
Laboratory Directed Research Development (LDRD); Information Technology
Research (ITR); Department of Energy [DE-AC02-05CH11231]
FX This work was supported by the National Institutes of Health through
Grant GM70444, by the US National Science Foundation through Award ACI
9624034 (CAREER Award) as part of the Large Scientific and Software Data
Set Visualization (LSSDSV) program under Contract ACI 9982251, by the
Lawrence Berkeley National Laboratory (LBNL) Laboratory Directed
Research Development (LDRD) program, and by a large Information
Technology Research (ITR) grant. Work at LBNL is conducted under the
Department of Energy Contract DE-AC02-05CH11231. The authors thank the
members of the Visualization and Computer Graphics Research Group at the
Institute for Data Analysis and Visualization (IDAV), University of
California, Davis, the members of the BDTNP at LBNL, and the members of
the Visualization Group at LBNL.
NR 39
TC 11
Z9 11
U1 0
U2 11
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1545-5963
EI 1557-9964
J9 IEEE ACM T COMPUT BI
JI IEEE-ACM Trans. Comput. Biol. Bioinform.
PD JAN-MAR
PY 2010
VL 7
IS 1
BP 64
EP 79
DI 10.1109/TCBB.2008.49
PG 16
WC Biochemical Research Methods; Computer Science, Interdisciplinary
Applications; Mathematics, Interdisciplinary Applications; Statistics &
Probability
SC Biochemistry & Molecular Biology; Computer Science; Mathematics
GA 549ON
UT WOS:000274063600006
PM 20150669
ER
PT J
AU Han, J
Chang, H
Andarawewa, K
Yaswen, P
Barcellos-Hoff, MH
Parvin, B
AF Han, Ju
Chang, Hang
Andarawewa, Kumari
Yaswen, Paul
Barcellos-Hoff, Mary Helen
Parvin, Bahram
TI Multidimensional Profiling of Cell Surface Proteins and Nuclear Markers
SO IEEE-ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS
LA English
DT Article
DE Multidimensional profiling; evolving fronts; Voronoi tessellation;
iterative scalar voting; E-cadherin; ionizing radiation
ID GROWTH-FACTOR-BETA; MAMMARY-GLAND; IN-SITU; RADIATION; ACTIVATION;
CANCER; ASSAYS
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.
C1 [Han, Ju; Chang, Hang; Yaswen, Paul; Parvin, Bahram] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Andarawewa, Kumari] Univ Virginia, Charlottesville, VA USA.
[Barcellos-Hoff, Mary Helen] NYU, Langone Sch Med, New York, NY 10003 USA.
RP Han, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd,Mail Stop 977R250, Berkeley, CA 94720 USA.
EM jhan@lbl.gov; ka7w@virginia.edu; MHBarcellos-Hoff@nyumc.org;
parvin@media.lbl.gov
FU Office of Science, US Department of Energy; NASA [T6275W]; Lawrence
Berkeley National Laboratory [DE-AC02-05CH11231]
FX This work was supported by the Low Dose Radiation Research Program,
Office of Science, US Department of Energy, and NASA Grant No. T6275W to
the University of California, Lawrence Berkeley National Laboratory
under contract DE-AC02-05CH11231.
NR 24
TC 11
Z9 11
U1 0
U2 5
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1545-5963
J9 IEEE ACM T COMPUT BI
JI IEEE-ACM Trans. Comput. Biol. Bioinform.
PD JAN-MAR
PY 2010
VL 7
IS 1
BP 80
EP 90
DI 10.1109/TCBB.2008.134
PG 11
WC Biochemical Research Methods; Computer Science, Interdisciplinary
Applications; Mathematics, Interdisciplinary Applications; Statistics &
Probability
SC Biochemistry & Molecular Biology; Computer Science; Mathematics
GA 549ON
UT WOS:000274063600007
PM 20150670
ER
PT J
AU Wang, CL
Yu, HF
Ma, KL
AF Wang, Chaoli
Yu, Hongfeng
Ma, Kwan-Liu
TI Application-Driven Compression for Visualizing Large-Scale Time-Varying
Data
SO IEEE COMPUTER GRAPHICS AND APPLICATIONS
LA English
DT Article
AB An application-driven approach to compressing large-scale time-varying volume data achieves high compression rates and interactive rendering while preserving fine details surrounding regions of interest. Such an approach could help computational scientists cope with the large-data problem.
C1 [Wang, Chaoli] Michigan Technol Univ, Houghton, MI 49931 USA.
[Yu, Hongfeng] Sandia Natl Labs, Livermore, CA 94550 USA.
[Wang, Chaoli; Ma, Kwan-Liu] Univ Calif Davis, Davis, CA 95616 USA.
RP Wang, CL (reprint author), Michigan Technol Univ, Houghton, MI 49931 USA.
EM chaoliw@mtu.edu; hyu@sandia.gov; ma@cs.ucdavis.edu
FU US National Science Foundation; US Department of Energy
FX This research was supported in part by the US National Science
Foundation's Information Technology Research program and the US
Department of Energy's Scientific Discovery through Advanced Computing
program. We thank Jacqueline H. Chen at Sandia National Laboratories for
providing the combustion data set and sharing her domain knowledge. We
also thank the reviewers for their constructive suggestions.
NR 4
TC 12
Z9 16
U1 0
U2 4
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0272-1716
J9 IEEE COMPUT GRAPH
JI IEEE Comput. Graph. Appl.
PD JAN-FEB
PY 2010
VL 30
IS 1
BP 59
EP 69
PG 11
WC Computer Science, Software Engineering
SC Computer Science
GA 538IH
UT WOS:000273177300010
PM 24807094
ER
PT J
AU Swarz, J
Ousley, A
Magro, A
Rienzo, M
Burns, D
Lindsey, AM
Wilburn, B
Bolcar, S
AF Swarz, Jeff
Ousley, Anita
Magro, Adriane
Rienzo, Marie
Burns, David
Lindsey, A. M.
Wilburn, Ben
Bolcar, Susan
TI CancerSpace: A Simulation-Based Game for Improving Cancer-Screening
Rates
SO IEEE COMPUTER GRAPHICS AND APPLICATIONS
LA English
DT Editorial Material
C1 [Burns, David; Lindsey, A. M.; Wilburn, Ben; Bolcar, Susan] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA.
EM swarzj@mail.nih.gov; ousleya@mail.nih.gov; magroa@mail.nih.gov;
rienzom@mail.nih.gov; david.burns@orise.orau.gov;
am.lindsey@orise.orau.gov; ben.wilburn@orise.orau.gov;
susan.bolcar@orise.orau.gov
NR 5
TC 2
Z9 2
U1 0
U2 1
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0272-1716
J9 IEEE COMPUT GRAPH
JI IEEE Comput. Graph. Appl.
PD JAN-FEB
PY 2010
VL 30
IS 1
BP 90
EP 94
PG 5
WC Computer Science, Software Engineering
SC Computer Science
GA 538IH
UT WOS:000273177300014
PM 24807098
ER
PT J
AU Shin, YC
Kim, DH
Kim, EH
Park, JM
Ho, KM
Constant, K
Choe, JH
Park, QH
Ryu, HY
Baek, JH
Jung, T
Kim, TG
AF Shin, Young Chul
Kim, Dong Ho
Kim, Eun Hong
Park, Joong-Mok
Ho, Kai-Ming
Constant, Kristen
Choe, Jong Ho
Park, Q. Han
Ryu, Han-Youl
Baek, Jong Hyeob
Jung, Tak
Kim, Tae Geun
TI High Efficiency GaN Light-Emitting Diodes With Two Dimensional Photonic
Crystal Structures of Deep-Hole Square Lattices
SO IEEE JOURNAL OF QUANTUM ELECTRONICS
LA English
DT Article
DE Finite-difference time domain method; light-emitting diode; light
extraction efficiency; nitride-based semiconductor; photonic crystal
ID HIGH-EXTRACTION-EFFICIENCY; SPONTANEOUS-EMISSION; ENHANCEMENT; SLABS
AB We report the enhanced light extraction of a square lattice photonic crystal GaN LED with a lattice constant of 460 nm and holes with a depth of 500 nm drilled through InGaN/GaN multiple quantum wells (MQWs) using laser holography and inductively coupled plasma reactive ion etching. In spite of the etching through the MQWs leading to undesirable surface recombination, the photonic crystal LEDs exhibited 1.37 times higher light extraction than that of the LEDs without photonic crystals at 20 mA. Theoretical studies using the 3-dimensional finite-difference time domain method show that the increase of the extraction efficiency with increasing etch depth is due to the increase of the density of the leaky modes into the air.
C1 [Shin, Young Chul; Kim, Dong Ho; Kim, Eun Hong; Kim, Tae Geun] Korea Univ, Sch Elect Engn, Seoul 136075, South Korea.
[Park, Joong-Mok; Ho, Kai-Ming; Constant, Kristen] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
[Park, Joong-Mok; Ho, Kai-Ming] Iowa State Univ, Dept Phys, Ames, IA 50011 USA.
[Constant, Kristen] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Choe, Jong Ho; Park, Q. Han] Korea Univ, Sch Phys, Seoul 136075, South Korea.
[Ryu, Han-Youl] Inha Univ, Dept Phys, Inchon 402751, South Korea.
[Baek, Jong Hyeob; Jung, Tak] Korean Photon Technol Inst, Kwangju 500460, South Korea.
RP Shin, YC (reprint author), Korea Univ, Sch Elect Engn, Seoul 136075, South Korea.
EM tgkim1@korea.ac.kr
RI Constant, Kristen/C-3673-2014
OI Constant, Kristen/0000-0001-7138-9365
FU Korea government ( MOST) [F01-2007-000-11760-0]; Quantum Photonic
Science Research Center, Korea; Korea Research Foundation grant funded
by the Korean Government (MOEHRD) [KRF-2008-D00074]
FX Manuscript received May 01, 2009; revised July 10, 2009. Current version
published December 09, 2009. This work was supported by a Korea Science
and Engineering Foundation (KOSEF) grant funded by the Korea government
( MOST) through project number [F01-2007-000-11760-0] and the Quantum
Photonic Science Research Center, Korea, and also supported by a Korea
Research Foundation grant funded by the Korean Government (MOEHRD)
(KRF-2008-D00074).
NR 20
TC 27
Z9 29
U1 0
U2 10
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA
SN 0018-9197
J9 IEEE J QUANTUM ELECT
JI IEEE J. Quantum Electron.
PD JAN
PY 2010
VL 46
IS 1
BP 116
EP 120
DI 10.1109/JQE.2009.2030150
PG 5
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 533RO
UT WOS:000272842500001
ER
PT J
AU Moontragoon, P
Vukmirovic, N
Ikonic, Z
Harrison, P
AF Moontragoon, Pairot
Vukmirovic, Nenad
Ikonic, Zoran
Harrison, Paul
TI SnGe Asymmetric Quantum Well Electroabsorption Modulators for Long-Wave
Silicon Photonics
SO IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
LA English
DT Article
DE Electroabsorption (EA) modulator; group IV semiconductors;
quantum-confined Stark effect; quantum wells (QWs)
ID OPTICAL-ABSORPTION; BAND-GAP; ALLOYS; OPTOELECTRONICS; SEMICONDUCTORS;
EFFICIENCY; GERMANIUM; MODEL
AB In recent years, SiGeSn alloys have been considered as promising materials for optoelectronic applications because they offer the possibility of a direct bandgap, and are compatible with Si-based technology; therefore, they have prospective applications such as in interband lasers and detectors, solar cells, etc. Here, we consider another possible application of nanostructures based on these materials: to extend the suite of Si-based optoelectronic devices for interband electroabsorption (EA) modulators. Using the 8-band k.pmethod, we have designed asymmetric double quantum wells that are optimized, by varying the well and barrier widths and material composition, to show large optical transmission sensitivity to the applied bias. Generally, these structures are useful for EA modulators in the midinfrared spectral range.
C1 [Moontragoon, Pairot; Ikonic, Zoran; Harrison, Paul] Univ Leeds, Sch Elect & Elect Engn, Inst Microwaves & Photon, Leeds LS2 9JT, W Yorkshire, England.
[Vukmirovic, Nenad] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Moontragoon, P (reprint author), Univ Leeds, Sch Elect & Elect Engn, Inst Microwaves & Photon, Leeds LS2 9JT, W Yorkshire, England.
EM eenpm@leeds.ac.uk; nvukmirovic@lbl.gov; z.ikonic@leeds.ac.uk;
p.harrison@leeds.ac.uk
RI Vukmirovic, Nenad/D-9489-2011;
OI Vukmirovic, Nenad/0000-0002-4101-1713; Harrison,
Paul/0000-0001-6117-0896
NR 29
TC 11
Z9 11
U1 0
U2 13
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1077-260X
J9 IEEE J SEL TOP QUANT
JI IEEE J. Sel. Top. Quantum Electron.
PD JAN-FEB
PY 2010
VL 16
IS 1
BP 100
EP 105
DI 10.1109/JSTQE.2009.2026691
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 553QW
UT WOS:000274382900012
ER
PT J
AU Yerci, S
Li, R
Kucheyev, SO
van Buuren, T
Basu, SN
Dal Negro, L
AF Yerci, Selcuk
Li, Rui
Kucheyev, Sergei O.
van Buuren, Tony
Basu, Soumendra N.
Dal Negro, Luca
TI Visible and 1.54 mu m Emission From Amorphous Silicon Nitride Films by
Reactive Cosputtering
SO IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
LA English
DT Article
DE Amorphous semiconductors; erbium; photoluminescence; silicon alloys
ID SI NANOCRYSTALS; ENERGY-TRANSFER; PHOTONIC STRUCTURES;
OPTICAL-ABSORPTION; RAMAN LASER; LIGHT; PHOTOLUMINESCENCE; ER;
ELECTROLUMINESCENCE; LUMINESCENCE
AB In this paper, we present our main results on the structural and optical properties of light-emitting amorphous silicon nitride (SiN(x)) films fabricated by reactive magnetron cosputtering. In particular, we discuss the origin of the visible emission in amorphous silicon nitride films and investigate the optical emission properties of Erbium-doped amorphous silicon nitride (Er:SiN(x)). The mechanisms of Er excitation and de-excitation in Er:SiN(x) are discussed in relation to the engineering of efficient light sources at 1.54 mu m for on-chip nanophotonics applications. These results suggest that Er-doped amorphous silicon nitride films have a large potential for the fabrication of optically active photonic devices based on the Si technology.
C1 [Yerci, Selcuk; Li, Rui; Dal Negro, Luca] Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA.
[Yerci, Selcuk; Li, Rui; Dal Negro, Luca] Boston Univ, Photon Ctr, Boston, MA 02215 USA.
[Kucheyev, Sergei O.; van Buuren, Tony] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Basu, Soumendra N.] Boston Univ, Div Engn & Mat Sci, Brookline, MA 02446 USA.
[Basu, Soumendra N.] Boston Univ, Dept Mech Engn, Boston, MA 02215 USA.
[Dal Negro, Luca] Boston Univ, Div Engn & Mat Sci, Boston, MA 02215 USA.
RP Yerci, S (reprint author), Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA.
EM syerci@bu.edu; ruili@bu.edu; kucheyev@llnl.gov; vanbuuren1@llnl.gov;
basu@bu.edu; dalnegro@bu.edu
RI Yerci, Selcuk/C-7993-2014
OI Yerci, Selcuk/0000-0003-0599-588X
FU United States Air Force Multidisciplinary University; United States
Department of Energy [DE-AC52-07NA27344]
FX Manuscript received May 17, 2009; revised August 9, 2009. First
published October 20, 2009; current version published February 5, 2010.
This work was supported in part by the United States Air Force
Multidisciplinary University Research Initiative program on
"electrically pumped silicon-based lasers for chip-scale nanophotonic
systems" supervised by Dr. G. Pomrenke. The work at Lawrence Livermore
National Laboratory (LLNL) was performed under the auspices of the
United States Department of Energy by LLNL under Contract
DE-AC52-07NA27344.
NR 56
TC 23
Z9 24
U1 0
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1077-260X
J9 IEEE J SEL TOP QUANT
JI IEEE J. Sel. Top. Quantum Electron.
PD JAN-FEB
PY 2010
VL 16
IS 1
BP 114
EP 123
DI 10.1109/JSTQE.2009.2032516
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 553QW
UT WOS:000274382900014
ER
PT J
AU Watts, MR
Zortman, WA
Trotter, DC
Young, RW
Lentine, AL
AF Watts, Michael R.
Zortman, William A.
Trotter, Douglas C.
Young, Ralph W.
Lentine, Anthony L.
TI Low-Voltage, Compact, Depletion-Mode, Silicon Mach-Zehnder Modulator
SO IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
LA English
DT Article
DE Diodes; optical modulation; silicon
ID OPTICAL MODULATOR; SPEED
AB Through rigorous process, electrical, and optical simulations, we develop a new silicon depletion-mode vertical p-n junction phase-modulator implemented in Mach-Zehnder modulator configuration, enabling an ultralow measured V(pi)L of only similar to 1 V.cm. Further, in a 500-mu m-long lumped element device, we demonstrate a 10-Gb/s nonreturn-to-zero data transmission with wide-open complementary output eye diagrams without the use of signal preemphasis.
C1 [Watts, Michael R.; Zortman, William A.; Trotter, Douglas C.; Young, Ralph W.; Lentine, Anthony L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Zortman, William A.] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87131 USA.
RP Watts, MR (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM mwatts@sandia.gov; wzortm@sandia.gov; dctrott@sandia.gov;
rwyoung@sandia.gov; allenti@sandia.gov
FU Sandia's Laboratory Directed Research and Development Program
FX Manuscript received June 6, 2009; revised July 8, 2009. Current version
published February 5, 2010. This work was supported by Sandia's
Laboratory Directed Research and Development Program.
NR 14
TC 87
Z9 87
U1 3
U2 19
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1077-260X
J9 IEEE J SEL TOP QUANT
JI IEEE J. Sel. Top. Quantum Electron.
PD JAN-FEB
PY 2010
VL 16
IS 1
BP 159
EP 164
DI 10.1109/JSTQE.2009.2035059
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 553QW
UT WOS:000274382900019
ER
PT J
AU Bryan, MT
Smith, KH
Real, ME
Bashir, MA
Fry, PW
Fischer, P
Im, MY
Schrefl, T
Allwood, DA
Haycock, JW
AF Bryan, Matthew T.
Smith, Katherine H.
Real, Maria E.
Bashir, M. A.
Fry, Paul W.
Fischer, Peter
Im, Mi-Young
Schrefl, Thomas
Allwood, Dan A.
Haycock, John W.
TI Switchable Cell Trapping Using Superparamagnetic Beads
SO IEEE MAGNETICS LETTERS
LA English
DT Article
DE Biomagnetics; cell positioning; domain wall; force; magnetic soft X-ray
microscopy; superparamagnetic bead
AB Ni81Fe19 microwires are investigated as the basis of a switchable template for positioning magnetically labeled neural Schwann cells. Magnetic transmission X-ray microscopy and micromagnetic modeling show that magnetic domain walls can be created or removed in zigzagged structures by an applied magnetic field. Schwann cells containing superparamagnetic beads are trapped by the field emanating from the domain walls. The design allows Schwann cells to be organized on a surface to form a connected network and then released from the surface if required. As aligned Schwann cells can guide nerve regeneration, this technique is of value for developing glial-neuronal coculture models in the future treatment of peripheral nerve injuries.
C1 [Bryan, Matthew T.; Bashir, M. A.; Schrefl, Thomas; Allwood, Dan A.] Univ Sheffield, Dept Engn Mat, Sheffield S1 3JD, S Yorkshire, England.
[Smith, Katherine H.; Real, Maria E.; Haycock, John W.] Univ Sheffield, Kroto Res Inst, Sheffield S3 7HQ, S Yorkshire, England.
[Fry, Paul W.] Univ Sheffield, Ctr Nanosci & Technol, Sheffield S3 7HQ, S Yorkshire, England.
[Fischer, Peter; Im, Mi-Young] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.
[Schrefl, Thomas] St Poelten Univ Appl Sci, A-3100 St Polten, Austria.
RP Bryan, MT (reprint author), Univ Sheffield, Dept Engn Mat, Sheffield S1 3JD, S Yorkshire, England.
EM m.t.bryan@sheffield.ac.uk
RI MSD, Nanomag/F-6438-2012; Fischer, Peter/A-3020-2010;
OI Fischer, Peter/0000-0002-9824-9343; Haycock, John/0000-0002-3950-3583
FU Biotechnology and Biological Sciences Research Council (BBSRC)
[BB/F015844/1]; Engineering and Physical Sciences Research Council
(EPSRC) [EP/D056683/1]; EPSRC [GR/T02942/01]
FX This work was supported by the Biotechnology and Biological Sciences
Research Council (BBSRC) (grant BB/F015844/1), the Engineering and
Physical Sciences Research Council (EPSRC) (grant EP/D056683/1), and by
the Director, Office of Science, Office of Basic Energy Sciences,
Materials Sciences, and Engineering Division, of the U.S. Department of
Energy. DAA acknowledges an Advanced Research Fellowship from the EPSRC
(grant GR/T02942/01).
NR 18
TC 19
Z9 19
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1949-307X
J9 IEEE MAGN LETT
JI IEEE Magn. Lett.
PY 2010
VL 1
AR 1500104
DI 10.1109/LMAG.2010.2046143
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA V31VD
UT WOS:000208910200005
ER
PT S
AU Wei, JS
Wang, CL
Yu, HF
Ma, KL
AF Wei, Jishang
Wang, Chaoli
Yu, Hongfeng
Ma, Kwan-Liu
BE North, S
Shen, HW
Vanwijk, JJ
TI A Sketch-Based Interface for Classifying and Visualizing Vector Fields
SO IEEE PACIFIC VISUALIZATION SYMPOSIUM 2010
SE IEEE Pacific Visualization Symposium
LA English
DT Proceedings Paper
CT IEEE Pacific Visualization Symposium
CY MAR 02-05, 2010
CL Taipei, TAIWAN
SP Natl Sci Council, AT&T
AB In flow visualization, field lines are often used to convey both global and local structure and movement of the flow. One challenge is to find and classify the representative field lines. Most existing solutions follow an automatic approach that generates field lines characterizing the flow and arranges these lines into a single picture. In our work, we advocate a user-centric approach to exploring 3D vector fields. Our method allows the user to sketch 2D curves for pattern matching in 2D and field lines clustering in 3D. Specifically, a 3D field line whose view-dependent 2D projection is most similar to the user drawing will be identified and utilized to extract all similar 3D field lines. Furthermore, we employ an automatic clustering method to generate field-line templates for the user to locate sub-fields of interest. This semi-automatic process leverages the user's knowledge about the flow field through intuitive user interaction, resulting in a promising alternative to existing flow visualization solutions. With our sketch-based interface, the user can effectively dissect the flow field and make more structured visualization for analysis or presentation.
C1 [Wei, Jishang; Ma, Kwan-Liu] Univ Calif Davis, Davis, CA 95616 USA.
[Wang, Chaoli] Michigan Technol Univ, Houghton, MI USA.
[Yu, Hongfeng] Sandia Natl Labs, Livermore, CA USA.
RP Wei, JS (reprint author), Univ Calif Davis, Davis, CA 95616 USA.
EM jswei@ucdavis.edu; chaoliw@mtu.edu; hyu@sandia.gov; ma@cs.ucdavis.edu
FU U.S. National Science Foundation [OCI-0325934, OCI-0749217, CNS-0551727,
CCF-0811422, OCI-0749227, OCI-0950008, CCF-0938114, OCI-0850566]; U.S.
Department of Energy through the SciDAC [DE-FC02-06ER25777,
DE-FG02-08ER54956]
FX This research was supported in part by the U.S. National Science
Foundation through grants OCI-0325934, OCI-0749217, CNS-0551727,
CCF-0811422, OCI-0749227, OCI-0950008, CCF-0938114 and OCI-0850566, and
the U.S. Department of Energy through the SciDAC program with Agreements
No. DE-FC02-06ER25777 and DE-FG02-08ER54956.
NR 23
TC 14
Z9 15
U1 0
U2 3
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA
SN 2165-8765
BN 978-1-4244-6684-9
J9 IEEE PAC VIS SYMP
PY 2010
BP 129
EP 136
PG 8
WC Computer Science, Artificial Intelligence; Imaging Science &
Photographic Technology
SC Computer Science; Imaging Science & Photographic Technology
GA BVB63
UT WOS:000290973000017
ER
PT S
AU Brownlee, C
Pegoraro, V
Shankar, S
McCormick, P
Hansen, C
AF Brownlee, C.
Pegoraro, V.
Shankar, S.
McCormick, P.
Hansen, C.
BE North, S
Shen, HW
Vanwijk, JJ
TI Physically-Based Interactive Schlieren Flow Visualization
SO IEEE PACIFIC VISUALIZATION SYMPOSIUM 2010
SE IEEE Pacific Visualization Symposium
LA English
DT Proceedings Paper
CT IEEE Pacific Visualization Symposium
CY MAR 02-05, 2010
CL Taipei, TAIWAN
SP Natl Sci Council, AT&T
AB Understanding fluid flow is a difficult problem and of increasing importance as computational fluid dynamics produces an abundance of simulation data. Experimental flow analysis has employed techniques such as shadowgraph and schlieren imaging for centuries which allow empirical observation of inhomogeneous flows. Shadowgraphs provide an intuitive way of looking at small changes in flow dynamics through caustic effects while schlieren cutoffs introduce an intensity gradation for observing large scale directional changes in the flow. The combination of these shading effects provides an informative global analysis of overall fluid flow. Computational solutions for these methods have proven too complex until recently due to the fundamental physical interaction of light refracting through the flow field. In this paper, we introduce a novel method to simulate the refraction of light to generate synthetic shadowgraphs and schlieren images of time-varying scalar fields derived from computational fluid dynamics (CFD) data. Our method computes physically accurate schlieren and shadowgraph images at interactive rates by utilizing a combination of GPGPU programming, acceleration methods, and data-dependent probabilistic schlieren cutoffs. Results comparing this method to previous schlieren approximations are presented.
C1 [Brownlee, C.; Pegoraro, V.; Shankar, S.; Hansen, C.] Univ Utah, Salt Lake City, UT 84112 USA.
[McCormick, P.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Brownlee, C (reprint author), Univ Utah, Salt Lake City, UT 84112 USA.
EM brownlee@cs.utah.edu; vpegorar@cs.utah.edu; sshankar@cs.utah.edu;
pat@lanl.gov; hansen@cs.utah.edu
NR 20
TC 0
Z9 0
U1 0
U2 0
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA
SN 2165-8765
BN 978-1-4244-6684-9
J9 IEEE PAC VIS SYMP
PY 2010
BP 145
EP 152
DI 10.1109/PACIFICVIS.2010.5429599
PG 8
WC Computer Science, Artificial Intelligence; Imaging Science &
Photographic Technology
SC Computer Science; Imaging Science & Photographic Technology
GA BVB63
UT WOS:000290973000019
ER
PT S
AU Aluko, O
Smith, TM
Tolbert, LM
AF Aluko, Olumide
Smith, Travis M.
Tolbert, Leon M.
GP IEEE
TI Behavior of Doubly-Fed Induction Generator Under Nearby Wind Plant Fault
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE induction generators; wind power generation; fault tolerance
AB Wind energy is the fastest growing source of renewable energy in the power industry and it will continue to grow worldwide as many countries are developing plans for its future development. For power system operators, this increasing contribution of wind energy to the grid poses new challenges that need to be addressed in order to ensure the reliability and security of the electric power grid. One of the main concerns by system operators is the ability of wind turbines to ride through faults without disconnecting from the grid according to FERC-661. This paper analyzes a three phase fault event on a wind plant modeled in EMTP and investigates the behavior of the doubly fed induction generator (DFIG) during grid fault conditions.
C1 [Aluko, Olumide; Tolbert, Leon M.] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA.
[Smith, Travis M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Aluko, O (reprint author), Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA.
EM oaluko@utk.edu; smithtm@ornl.gov; tolbert@utk.edu
NR 7
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 5
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611903040
ER
PT S
AU Bank, JN
Omitaomu, OA
Fernandez, SJ
Liu, Y
AF Bank, J. N.
Omitaomu, O. A.
Fernandez, S. J.
Liu, Y.
GP IEEE
TI Extraction and Visualization of Power System Interarea Oscillatory Modes
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE High-speed data streams; interarea mode; oscillations; power systems;
smart grid; spatial devices; visualization; wide-area measurement
systems
ID HILBERT-HUANG TRANSFORM; TIME-SERIES ANALYSIS; DECOMPOSITION
AB Interarea oscillatory modes pose a threat to power system stability. An algorithm is presented for the identification and analysis of such modes from high resolution phasor measurement data. The process outlined includes data collection, conditioning, extraction of the primary oscillatory frequency, and determination of participating areas of the system. Additionally a visualization methodology is presented which displays these results. Using the tools developed in this paper the dominant modes and their associated regions of influence in a power system can be determined directly from measurement data.
C1 [Bank, J. N.] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Omitaomu, O. A.; Fernandez, S. J.] Oak Ridge Natl Lab, Computat Sci & Engn Div, Oak Ridge, TN 37831 USA.
[Liu, Y.] Univ Tennessee, Dept Elect & Comp Sci, Knoxville, TN 37996 USA.
RP Bank, JN (reprint author), Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
EM jbank@vt.edu; omitaomuoa@ornl.gov; fernandezsj@ornl.gov; liu@utk.edu
NR 14
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 7
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611902018
ER
PT S
AU Botterud, A
Wang, J
Bessa, RJ
Keko, H
Miranda, V
AF Botterud, A.
Wang, J.
Bessa, R. J.
Keko, H.
Miranda, V.
GP IEEE
TI Risk Management and Optimal Bidding for a Wind Power Producer
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Wind power; electricity markets; risk management; contracting;
forecasting; bidding; stochastic simulations
ID PROBABILISTIC FORECASTS; GENERATION
AB This paper discusses risk management, contracting, and bidding for a wind power producer. A majority of the wind power in the United States is sold on long-term power purchase agreements, which hedge the wind power producer against future price risks. However, a significant amount is sold as merchant power and therefore is exposed to fluctuations in future electricity prices (day-ahead and real-time) and potential imbalance penalties. Wind power forecasting can serve as a tool to increase the profit and reduce the risk from participating in the wholesale electricity market. We propose a methodology to derive optimal day-ahead bids for a wind power producer under uncertainty in realized wind power and market prices. We also present an initial illustrative case study from a hypothetical wind site in the United States, where we compare the results of different day-ahead bidding strategies. The results show that the optimal day-ahead bid is highly dependent on the expected day-ahead and real-time prices, and also on the risk preferences of the wind power producer. A deviation penalty between day-ahead bid and real-time delivery tends to drive the bids closer to the expected generation for the next day.
C1 [Botterud, A.; Wang, J.] Argonne Natl Lab, CEEESA, Argonne, IL 60439 USA.
[Bessa, R. J.; Keko, H.; Miranda, V.] Univ Porto, INESC Porto, Fac Engn, Rua Campo Alegre 823, P-4100 Oporto, Portugal.
RP Botterud, A (reprint author), Argonne Natl Lab, CEEESA, Argonne, IL 60439 USA.
EM abotterud@anl.gov; jianhui.wang@anl.gov; rbessa@inescporto.pt;
hkeko@inescporto.pt; vmiranda@inescporto.pt
RI Miranda, Vladimiro/H-6245-2012
FU U.S. Department of Energy Office of Science laboratory
[DE-AC02-06CH11357]
FX The submitted manuscript has been created by UChicago Argonne, LLC,
Operator of Argonne National Laboratory (Argonne). Argonne, a U.S.
Department of Energy Office of Science laboratory, is operated under
Contract No. DE-AC02-06CH11357. The U.S. Government retains for itself,
and others acting on its behalf, a paid-up non-exclusive, irrevocable
worldwide license in said article to reproduce, prepare derivative
works, distribute copies to the public, and perform publicly and display
publicly, by or on behalf of the Government.
NR 17
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905080
ER
PT S
AU Chen, YS
Huang, ZY
Chavarria-Miranda, D
AF Chen, Yousu
Huang, Zhenyu
Chavarria-Miranda, Daniel
GP IEEE
TI Performance Evaluation of Counter-Based Dynamic Load Balancing Schemes
for Massive Contingency Analysis with Different Computing Environments
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Contingency Analysis; Energy Management System; Parallel Computing; and
Dynamic Load Balancing
AB Contingency analysis is a key function in the Energy Management System (EMS) to assess the impact of various combinations of power system component failures based on state estimation. Contingency analysis is also extensively used in power market operation for feasibility test of market solutions. High performance computing holds the promise of faster analysis of more contingency cases for the purpose of safe and reliable operation of today's power grids with less operating margin and more intermittent renewable energy sources. This paper evaluates the performance of counter-based dynamic load balancing schemes for massive contingency analysis under different computing environments. Insights from the performance evaluation can be used as guidance for users to select suitable schemes in the application of massive contingency analysis. Case studies, as well as MATLAB simulations, of massive contingency cases using the Western Electricity Coordinating Council power grid model are presented to illustrate the application of high performance computing with counter-based dynamic load balancing schemes.
C1 [Chen, Yousu; Huang, Zhenyu; Chavarria-Miranda, Daniel] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Chen, YS (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
NR 7
TC 0
Z9 0
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905081
ER
PT J
AU Clements, S
Kirkham, H
AF Clements, Sam
Kirkham, Harold
GP IEEE
TI Cyber-Security Considerations for the Smart Grid
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT PES General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE cyber security; mitigations; smart grid; smart meters; vulnerabilities
AB The electrical power grid is evolving into the "smart grid." The goal of the smart grid is to improve efficiency and availability of power by adding more monitoring and control capabilities. These new technologies and mechanisms are certain to introduce vulnerabilities into the power grid. In this paper we provide an overview of the cyber security state of the electrical power grid. We highlight some of the vulnerabilities that already exist in the power grid including limited capacity systems, implicit trust and the lack of authentication. We also address challenges of complexity, scale, added capabilities and the move to multipurpose hardware and software as the power grid is upgraded. These changes create vulnerabilities that did not exist before and bring increased risks. We conclude the paper by showing that there are a number mitigation strategies that can help keep the risk at an acceptable level.
C1 [Clements, Sam; Kirkham, Harold] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Clements, S (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM samuel.clements@pnl.gov
NR 8
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 5
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611903006
ER
PT S
AU Ela, E
Kirby, B
Lannoye, E
Milligan, M
Flynn, D
Zavadil, B
O'Malley, M
AF Ela, Erik
Kirby, Brendan
Lannoye, Eamonn
Milligan, Michael
Flynn, Damian
Zavadil, Bob
O'Malley, Mark
GP IEEE
TI Evolution of Operating Reserve Determination in Wind Power Integration
Studies
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE operating reserves; power system operation; power system reliability;
power systems; wind power generation
AB The growth of wind power as an electrical power generation resource has produced great benefits with reductions in emissions and the supply of zero cost fuel. It also has created challenges for the operation of power systems arising from the increased variability and uncertainty it has introduced. A number of studies have been performed over the past decade to analyze the operational impacts that can occur at high penetrations of wind. One of the most crucial impacts is the amount of incremental operating reserves required due to the variability and uncertainty of wind generation. This paper describes different assumptions and methods utilized to calculate the amount of different types of reserves carried, and how these methods have evolved as more studies have been performed.
C1 [Ela, Erik; Milligan, Michael] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Lannoye, Eamonn; Flynn, Damian; O'Malley, Mark] Univ Coll Dublin, Dublin, Ireland.
[Zavadil, Bob] Enernex Corp, Knoxville, TN 37932 USA.
[Kirby, Brendan] AWEA, Natl Renewable Energy Lab, Oak Ridge, TN USA.
RP Ela, E (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM erik.ela@NREL.gov; kirbybj@ieee.org; eamonn.lannoye@ucd.ie;
michael.milligan@NREL.gov; damian.flynn@ucd.ie; bobz@enernex.com;
mark.omalley@ucd.ie
NR 14
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611901079
ER
PT S
AU Genc, I
Diao, RS
Vittal, V
AF Genc, Istemihan
Diao, Ruisheng
Vittal, Vijay
GP IEEE
TI Computation of Transient Stability Related Security Regions and
Generation Rescheduling Based on Decision Trees
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE dynamic security assessment; decision trees; preventive control
ID OPTIMAL POWER-FLOW; DYNAMIC SECURITY; SYSTEMS
AB In this paper, a method of decision tree-based computation of security regions and boundaries for power systems is proposed. These computations are used in dynamic security enhancement via generation rescheduling against transient instabilities. This work also involves an iterative method of generation rescheduling using the security regions calculated by decision trees. The proposed methods are implemented and their performances are assessed on the Iowa power system model.
C1 [Genc, Istemihan] Istanbul Tech Univ, Dept Elect Engn, TR-34469 Istanbul, Turkey.
[Diao, Ruisheng] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Vittal, Vijay] Arizona State Univ, Dept Elect Engn, Tempe, AZ 85287 USA.
RP Genc, I (reprint author), Istanbul Tech Univ, Dept Elect Engn, TR-34469 Istanbul, Turkey.
EM gencis@itu.edu.tr; ruisheng.diao@pnl.gov; vijay.vittal@asu.edu
FU The Scientific and Technological Research Council of Turkey (TUBITAK)
FX This work was supported in part by The Scientific and Technological
Research Council of Turkey (TUBITAK).
NR 14
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611900126
ER
PT S
AU Huang, ZY
Zhou, N
Tuffner, F
Chen, YS
Trudnowski, D
Mittelstadt, W
Hauer, J
Dagle, J
AF Huang, Zhenyu
Zhou, Ning
Tuffner, Francis
Chen, Yousu
Trudnowski, Daniel
Mittelstadt, William
Hauer, John
Dagle, Jeffery
GP IEEE
TI Improving Small Signal Stability through Operating Point Adjustment
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Modal Sensitivity; Small Signal Stability; Low-frequency Oscillation;
Phasor Measurement; Wide-Area Measurement System; and Power System
Operation
AB ModeMeter techniques for real-time small-signal stability monitoring continue to mature, and more and more phasor measurements are available in power systems. It has come to the stage to bring modal information into real-time power system operation. This paper proposes to establish a procedure for Modal Analysis for Grid Operations (MANGO). Complementary to PSS and other traditional modulation-based control, MANGO aims to provide suggestions such as redispatching generation for operators to mitigate low-frequency oscillations. Load would normally not be reduced except as a last resort. Different from modulation-based control, the MANGO procedure proactively maintains adequate damping at all times, rather than reacting to disturbances when they occur. The effect of operating points on small-signal stability is presented in this paper. Implementation with existing operating procedures is discussed. Several approaches for modal sensitivity estimation are investigated to associate modal damping and operating parameters. The effectiveness of the MANGO procedure is confirmed through simulation studies of several test systems.
C1 [Huang, Zhenyu; Zhou, Ning; Tuffner, Francis; Chen, Yousu; Hauer, John; Dagle, Jeffery] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Trudnowski, Daniel] Univ Montana, Missoula, MT 59812 USA.
[Mittelstadt, William] Bonneville Power Adm, Vancouver, WA 98662 USA.
RP Huang, ZY (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM zhenyu.huang@pnl.gov; ning.zhou@pnl.gov; francis.tuffner@pnl.gov;
yousu.chen@pnl.gov; dtrudnowski@mtech.edu; wmittelstadt@bpa.gov;
john.hauer@pnl.gov; jeff.dagle@pnl.gov
FU U.S. Department of Energy through its Transmission Reliability Program;
California Energy Commission through its Public Interest Energy Research
Program [TRP-08-08]; Battelle for the U.S. Department of Energy
[DE-AC05-76RL01830]
FX This paper was prepared as a result of work sponsored by the U.S.
Department of Energy through its Transmission Reliability Program and by
the California Energy Commission through its Public Interest Energy
Research Program under contract No. TRP-08-08. The Pacific Northwest
National Laboratory is operated by Battelle for the U.S. Department of
Energy under Contract DE-AC05-76RL01830.
NR 24
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905091
ER
PT J
AU Kavicky, JA
AF Kavicky, James A.
GP IEEE
TI Impacts of Smart Grid Data on Parallel Path and Contingency Analysis
Efforts
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT PES General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Data management; interconnected power systems; power system monitoring;
power system planning; power system reliability; power system security
AB Although a desirable attribute, not all operations models currently make use of real-time data for various reasons. To say the least, the regional scope and comprehensiveness that current data encompasses may be considered limited and incomplete. However, as computational, communication, security, and instrumentation technologies advance, smart grid technology demonstrates the potential to radically change network monitoring and data collection capabilities and advance simulation methods beyond that achievable given the current institutional environment. Because smart grid has the potential to conduct data collection in real time and to improve modeling and simulation results, potential data overload, validation, security, access, and other challenges are leading to new design opportunities. Similarly, we can expect significant impacts on system operation procedures and increased use of enhanced automation applications in operations decision making.
C1 [Kavicky, James A.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Kavicky, JA (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM kavicky@anl.gov
NR 1
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 3
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611900143
ER
PT S
AU Kroposki, B
Martin, G
AF Kroposki, Benjamin
Martin, Gregory
GP IEEE
TI Hybrid Renewable Energy and Microgrid Research Work at NREL
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Standards; interconnected power systems; power distribution; solar power
generation; photovoltaic power systems; hybrid; microgrid
AB The National Renewable Energy Laboratory (NREL) conducts a variety of research in the area of hybrid power system integration and microgrids. NREL is studying hybrid (stand-alone) power systems incorporating photovoltaic power in the United States and assessing the characteristics and status of government-installed hybrid systems greater than 2 kW over the last 30 years. This research provides information to the community on hybrid power systems, presents lessons learned from operational experience, and provides analysis of challenges and success of the assessed systems. NREL also supports the development of IEEE P1547.4 Draft Guide for Design, Operation, and Integration of Distributed Resource Island Systems with Electric Power System as part of the further development of IEEE 1547-2003 Standard for Interconnecting Distributed Resources with Electric Power Systems. This standard is summarized here, providing alternative approaches and good practices for the design, operation, and integration of microgrids.
C1 [Kroposki, Benjamin] NREL, Distributed Energy Syst Integrat Grp, Golden, CO USA.
RP Kroposki, B (reprint author), NREL, Distributed Energy Syst Integrat Grp, Golden, CO USA.
NR 1
TC 0
Z9 0
U1 2
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 4
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905009
ER
PT S
AU Lannoye, E
Milligan, M
Adams, J
Tuohy, A
Chandler, H
Flynn, D
O'Malley, M
AF Lannoye, Eamonn
Milligan, Michael
Adams, John
Tuohy, Aidan
Chandler, Hugo
Flynn, Damian
O'Malley, Mark
GP IEEE
TI Integration of Variable Generation: Capacity Value and Evaluation of
Flexibility
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Power System Planning; Power System Reserves; Variable Generation
Integration; Power Systems
AB As integration of variable generation continues to grow rapidly in power systems globally, system planners are seeking new tools to understand the role of variable output generators and the challenges experienced with their integration. The North American Electric Reliability Corporation (NERC) has established a task force to examine the integration of variable generation. This paper details the achievements to date and outlines ongoing efforts from Task 1.2 on the capacity value of variable generation and from Task 1.4 on the concept of flexibility in power systems and options for its definition. Arising from international collaboration with the International Energy Agency, a discussion on the definition of flexible resources is presented. A potential metric for flexibility offered by conventional plant is developed and applied to a test system.
C1 [Lannoye, Eamonn; Tuohy, Aidan; Flynn, Damian; O'Malley, Mark] Univ Coll Dublin, Elect Res Ctr, Dublin 2, Ireland.
[Milligan, Michael] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Adams, John] New York Independent Syst Operat, Schenectady, NY 12308 USA.
[Chandler, Hugo] Int Energy Agcy, F-75015 Paris, France.
RP Lannoye, E (reprint author), Univ Coll Dublin, Elect Res Ctr, Dublin 2, Ireland.
EM eamonn.lannoye@ucd.ie; michael_milligan@nrel.gov; jadams@nyiso.com;
aidan.tuohy@ucd.ie; hugo.chandler@iea.org; damian.flynn@ucd.ie;
mark.omalley@ucd.ie
NR 11
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611902015
ER
PT S
AU Li, SH
Haskew, TA
Muljadi, E
AF Li, Shuhui
Haskew, Timothy A.
Muljadi, Eduard
GP IEEE
TI Integrative Characteristic Evaluation of DFIG Maximum Power Extraction
using Lookup Table Approach
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Wind power; doubly-fed induction generator; d-q vector control;
generator characteristics; extracted wind power characteristics; maximum
power extraction control
ID OUTPUT INDUCTION GENERATOR; SYSTEMS; OPTIMIZATION
AB A DFIG wind turbine is a variable-speed wind turbine widely used in modern wind power industry. The maximum power extraction of the turbine is affected by 1) electrical characteristics of the generator, 2) aerodynamic characteristics of the turbine blades, and 3) maximum power extraction control strategies. This paper presents a DFIG maximum power extraction study through integrated steady-state characteristic and transient close-loop control evaluation approach. The generator characteristics are examined for different d-q control conditions; the peak power tracking and extracted wind power characteristics are presented versus generator slip. Then, all the three characteristics are analyzed in a joint environment to investigate the lookup-table maximum power extraction principle. A nested current- and speed-loop control structure is developed using the stator-voltage-oriented frame, which is then used to evaluate factors that may affect the DFIG peak power tracking control performance. Simulation studies are conducted to investigate how the maximum power extraction is influenced by wind turbine electrical and aerodynamic characteristics as well as different sampling rate and low-pass filtering strategies.
C1 [Li, Shuhui; Haskew, Timothy A.] Univ Alabama, Dept Elect & Comp Engn, Tuscaloosa, AL 35487 USA.
[Muljadi, Eduard] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Li, SH (reprint author), Univ Alabama, Dept Elect & Comp Engn, Tuscaloosa, AL 35487 USA.
EM sli@eng.ua.edu
NR 20
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611900030
ER
PT S
AU Lu, N
Weimar, MR
Makarov, YV
Rudolph, FJ
Murthy, SN
Arseneaux, J
Loutan, C
AF Lu, N.
Weimar, M. R.
Makarov, Y. V.
Rudolph, F. J.
Murthy, S. N.
Arseneaux, J.
Loutan, C.
GP IEEE
TI An Evaluation of the Flywheel Potential for Providing Regulation Service
in California
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE flywheel; energy storage; ancillary services; regulation; wind
integration; economic analysis; breakeven cost; energy market
AB Flywheel energy storage can provide ancillary services including regulation and frequency response to power grids. This study presents the technical characteristics, modeling approach, methodologies, and results for providing regulation services in the California Independent System Operator market. Breakeven cost analyses were developed for two cases: 1) the flywheel provides the regulation service alone and 2) the flywheel provides the regulation service aggregated together with a hydro power plant. For both cases, two payment methods were evaluated: pay-by-energy and pay-by-capacity. Based on the results of the technical and cost analyses, the opportunities for providing regulation services are discussed, field test results for the flywheel's physical characteristics are presented, and performance metrics to evaluate the flywheel's capability to provide the regulation services are proposed and evaluated.
C1 [Lu, N.; Weimar, M. R.; Makarov, Y. V.] Pacific NW Natl Lab, POB 999,MSIN K1-85, Richland, WA 99352 USA.
[Rudolph, F. J.; Murthy, S. N.; Arseneaux, J.] Beacon Power Corp, Wilmington, DE USA.
[Loutan, C.] Calif Independent Syst Operat, Folsom, CA 95630 USA.
RP Lu, N (reprint author), Pacific NW Natl Lab, POB 999,MSIN K1-85, Richland, WA 99352 USA.
EM ning.lu@pnl.gov; mark.weimar@pnl.gov; yuri.makarov@pnl.gov;
rudolph@beaconpower.com; murthy@beaconpower.com;
arseneaux@beaconpower.com; cloutan@caiso.com
FU U.S. Department of Energy [DE-AC05-76RL01830]; Bonneville Power
Administration; California Energy Commission (CEC) through California
Institute for Energy and Environment (CIEE)
FX This work was conducted by Pacific Northwest National Laboratory (PNNL),
which is operated for the U.S. Department of Energy by Battelle under
Contract DE-AC05-76RL01830.; This work has been sponsored by the
Bonneville Power Administration and by the California Energy Commission
(CEC) through the California Institute for Energy and Environment
(CIEE). CEC Note: The paper does not necessarily represent the views of
the Energy Commission, its employees or the State of California. The
Energy Commission, the State of California, its employees, contractors
and subcontractors make no warrant, express or implied, and assume no
legal liability for the information in this paper; nor does any party
represent that the uses of this information will not infringe upon
privately owned rights. This paper has not been approved or disapproved
by the California Energy Commission nor has the California Energy
Commission passed upon the accuracy or adequacy of the information in
this paper.
NR 16
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611901134
ER
PT S
AU Lu, SA
Makarov, YV
Zhu, YH
Lu, N
Kumar, NP
Chakrabarti, BB
AF Lu, Shuai
Makarov, Yuri V.
Zhu, Yunhua
Lu, Ning
Kumar, Nirupama Prakash
Chakrabarti, Bhujanga B.
GP IEEE
TI Unit Commitment Considering Generation Flexibility and Environmental
Constraints
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Unit commitment; generation flexibility; environmental constraints;
emission rate; renewable; hydro generation; wind generation
AB This paper proposes a new framework for the power system unit commitment process, incorporating generation flexibility requirements and environmental constraints into the existing unit commitment algorithm. The generation flexibility requirements are to address the uncertainty and variability associated with large amounts of intermittent resources as well as with load, which cause real-time balancing requirements to be variable and less predictable. The proposed flexibility requirements include capacity, ramp-rate and energy (or ramp duration) for both upward and downward balancing reserves. The environmental constraints include emission limits for fossil fuel-fired generators and ecological regulations for hydro power plants. The calculation of emission rates is formulated. Unit commitment under this new framework will be critical to the economic and reliable operation of the power grid and the minimization of its negative environmental impacts, especially when high penetration levels of intermittent resources are being approached, as required by the renewable portfolio standards in many states.
C1 [Lu, Shuai; Makarov, Yuri V.; Zhu, Yunhua; Lu, Ning; Kumar, Nirupama Prakash; Chakrabarti, Bhujanga B.] Pacific Northwest Natl Lab, Richland, WA 99354 USA.
[Chakrabarti, Bhujanga B.] Transpower New Zealand LTD, Wellington, New Zealand.
RP Lu, SA (reprint author), Pacific Northwest Natl Lab, Richland, WA 99354 USA.
EM shuai.lu@pnl.gov
FU Pacific Northwest National Laboratory (PNNL)
FX This work was supported financially by Pacific Northwest National
Laboratory (PNNL) through Laboratory Directed Research and Development
(LDRD) program.
NR 26
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 11
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905101
ER
PT S
AU Ma, JA
Chen, YS
Huang, ZY
Wong, PC
AF Ma, Jian
Chen, Yousu
Huang, Zhenyu (Henry)
Wong, Pak Chung
GP IEEE
TI Detect Abnormal SCADA Data Using State Estimation Residuals
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE SCADA; BACON algorithm; state estimation; outlier detection; bad data
detection; residuals
ID IDENTIFICATION; OUTLIERS
AB Detection of manipulated supervisory control and data acquisition (SCADA) data is critically important for the safe and secure operation of modern power systems. In this paper, a methodology of detecting manipulated SCADA data based on state estimation residuals is presented. A framework of the proposed methodology is described. Instead of using original SCADA measurements as the bad data sources, the residuals calculated based on the results of the state estimator are used as the input for the outlier detection process. The BACON algorithm is applied to detect outliers in the state estimation residuals. The IEEE 118-bus system is used as a test case to evaluate the effectiveness of the proposed methodology. The accuracy of the BACON method is compared with that of the 3-sigma method for the simulated SCADA measurements and residuals.
C1 [Ma, Jian; Chen, Yousu; Huang, Zhenyu (Henry); Wong, Pak Chung] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Ma, JA (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM jian.ma@pnl.gov; yousu.chen@pnl.gov; zhenyu.huang@pnl.gov;
pak.wong@pnl.gov
NR 26
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611901058
ER
PT S
AU Momber, I
Gomez, T
Venkataramanan, G
Stadler, M
Beer, S
Lai, J
Marnay, C
Battaglia, V
AF Momber, Ilan
Gomez, Tomas
Venkataramanan, Giri
Stadler, Michael
Beer, Sebastian
Lai, Judy
Marnay, Chris
Battaglia, Vincent
GP IEEE
TI Plug-in Electric Vehicle Interactions with a Small Office Building: An
Economic Analysis using DER-CAM
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE battery storage; building management systems; dispersed storage and
generation; electric vehicles; load management; microgrid; optimization
methods; power system economics; road vehicle electric propulsion
AB It is generally believed that plug-in electric vehicles (PEVs) offer environmental and energy security advantages compared to conventional vehicles. Policies are stimulating electric transportation deployment, and PEV adoption may grow significantly. New technology and business models are being developed to organize the PEV and building interface and their interaction with the wider grid. This paper analyzes the PEVs' integration into a building's Energy Management System (EMS). This relationship is modeled by the Distributed Energy Resources Customer Adoption Model (DER-CAM), which finds optimal equipment combinations to meet microgrid requirements at minimum cost, carbon footprint, or other criteria. Results show that vehicle batteries are valuable to the building and a contractual relationship that shares the benefit between building and vehicle owner is possible. Under a simple annual fixed payment and energy exchange agreement, vehicles are primarily used to avoid peak demand charges and supply cheaper off-peak electricity to the building during workdays.
C1 [Momber, Ilan] Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Stadler, Michael; Lai, Judy; Marnay, Chris; Battaglia, Vincent] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Gomez, Tomas] Pontificia Comillas Univ Madrid, Madrid, Spain.
[Venkataramanan, Giri] Univ Wisconsin, Madison, WI 53706 USA.
[Momber, Ilan; Beer, Sebastian] Fraunhofer Inst Syst & Innovat Res, Karlsruhe, Germany.
RP Momber, I (reprint author), Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
EM IMomber@lbl.gov; TGomez@lbl.gov; giri@engr.wisc.edu; MStadler@lbl.gov;
SPJBeer@lbl.gov; JLai@lbl.gov; C_Marnay@lbl.gov; VSBattaglia@lbl.gov
FU Office of Electricity Delivery; U.S. Department of Energy
[DE-AC02-05CH11231]; Spanish Ministry of Education; Center for Freight
Infrastructure Research and Education of the University of
Wisconsin-Madison
FX The work described in this paper was primarily funded by the Office of
Electricity Delivery and Energy Reliabilitys Smart Grids Program in the
U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Prof. T.
Gomezs participation is funded by the Spanish Ministry of Education
under its Professor and Senior Researcher Mobility program. Momber and
Beers participation is funded by the Fraunhofer Institute for Systems
and Innovations Research, Karlsruhe, Germany. Prof. Venkataramanans
participation was partly supported by the Wisconsin Focus on Energys
Environmental and Economic Research and Development (EERD) Program and
the Center for Freight Infrastructure Research and Education of the
University of Wisconsin-Madison.
NR 22
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905110
ER
PT S
AU Muljadi, E
Samaan, N
Gevorgian, V
Li, J
Pasupulati, S
AF Muljadi, Eduard
Samaan, Nader
Gevorgian, Vahan
Li, Jun
Pasupulati, Subbaiah
GP IEEE
TI Short Circuit Current Contribution for Different Wind Turbine Generator
Types
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Fault contribution; induction generator; protection; short circuit; wind
power plant; wind turbine
AB An important aspect of wind power plant (WPP) impact studies is to evaluate the short circuit (SC) current contribution of the plant into the transmission network under different fault conditions. This task can be challenging to protection engineers due to the topology differences between different types of wind turbine generators (WTGs) and the conventional generating units.
This paper presents simulation results for SC current contribution for different types of WTGs obtained through transient analysis using generic WTG models. The obtained waveforms are analyzed to explain the behavior, such as peak values and rate of decay, of the WTG. The effect of fault types and location, and the effect of the control algorithms of power converters on SC current contribution are also investigated.
We show that the response of the WPP to faults will vary based on the type of the installed WTGs. While in Type 1 and Type 2 WTGs, SC current will be determined by the physical characteristics of the induction generator, the contribution of Type 3 and Type 4 WTG will be mostly characterized by the power converter's control algorithms, which are usually considered proprietary information by the wind turbine manufacturers.
C1 [Muljadi, Eduard; Gevorgian, Vahan] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Samaan, Nader] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Li, Jun] EnerNex Corp, Knoxville, TN 37932 USA.
[Pasupulati, Subbaiah] Oak Creek Energy Syst Inc, Mojave, CA 93501 USA.
RP Muljadi, E (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA.
EM eduard.muljadi@nrel.gov; nader.samaan@pnl.gov; vahan.gevorgian@nrel.gov;
jun@enernex.com; subbaiah@oakcreekenergy.com
FU Department of Energy; California Energy Commission
FX This work was supported financially by the Department of Energy and the
California Energy Commission.
NR 9
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 8
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905061
ER
PT B
AU Oh, H
AF Oh, HyungSeon
GP IEEE
TI A New Network Reduction Methodology for Congestion Study
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT PES General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
C1 Natl Renewable Energy Lab, Golden, CO USA.
RP Oh, H (reprint author), Natl Renewable Energy Lab, Golden, CO USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 1
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611900049
ER
PT S
AU Rizy, DT
Li, FX
Li, HJ
Adhikari, S
Kueck, JD
AF Rizy, D. Tom
Li, Fangxing
Li, Huijuan
Adhikari, Sarina
Kueck, John D.
GP IEEE
TI Properly Understanding the Impacts of Distributed Resources on
Distribution Systems
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Distributed Energy Resources; Reactive Power Control; Volt/Var Control
AB The subject paper discusses important impacts of distributed resources on distribution networks and feeders. These include capacity, line losses, voltage regulation, and central system support (such as volt/var control via central generators and substation) as the number, placement and penetration levels of distributed resources are varied. Typically, the impacts of distributed resources on the distribution system are studied by using steady-state rather than dynamic analysis tools. However, the response time and transient impacts of both system equipment (such as substation/feeder capacitors) and distributed resources needs to be taken into account and only dynamic analysis will provide the full impact results. ORNL is completing a study of distributed resources interconnected to a large distribution system considering the above variables. A report of the study and its results will be condensed into a paper for this panel session. The impact of distributed resources will vary as the penetration level reaches the capacity of the distribution feeder/system. The question is how high of a penetration of distributed resource can be accommodated on the distribution feeder/system without any major changes to system operation, system design and protection. The impacts will most surely vary depending upon load composition, distribution and level. Also, it is expected that various placement of distributed resources will impact the distribution system differently.
C1 [Rizy, D. Tom; Kueck, John D.] Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
[Li, Fangxing; Li, Huijuan; Adhikari, Sarina] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA.
RP Rizy, DT (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM rizydt@ornl.gov
RI Li, Fangxing/E-6023-2013
OI Li, Fangxing/0000-0003-1060-7618
FU Office of Electricity Delivery & Energy Reliability; U.S. Department of
Energy [DE-AC05-00OR 22725]; UT-Battelle; Oak Ridge National Laboratory;
University of Tennessee Knoxville
FX This work was sponsored by the Office of Electricity Delivery & Energy
Reliability, U.S. Department of Energy under Contract No. DE-AC05-00OR
22725 with UT-Battelle and conducted at Oak Ridge National Laboratory
and the University of Tennessee Knoxville.
NR 4
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 5
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905018
ER
PT S
AU Schneider, KP
Fuller, JC
AF Schneider, K. P.
Fuller, J. C.
GP IEEE
TI Detailed End Use Load Modeling for Distribution System Analysis
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE distribution system analysis; forward-backward sweep method; load
modeling; Newton-Raphson Method; power simulation; power modeling; smart
grid
AB The field of distribution system analysis has made significant advances in the past ten years. It is now standard practice when performing a power flow simulation to use an algorithm that is capable of unbalanced per-phase analysis. Recent work has also focused on examining the need for time-series simulations instead of examining a single time period, i.e., peak loading. One area that still requires a significant amount of work is the proper modeling of end use loads. Currently it is common practice to use a simple load model consisting of a combination of constant power, constant impedance, and constant current elements. While this simple form of end use load modeling is sufficient for a single point in time, the exact model values are difficult to determine and it is inadequate for some time-series simulations. This paper will examine how to improve simple time invariant load models as well as develop multi-state time variant models.
C1 [Schneider, K. P.] Battelle Seattle Res Ctr, Pacific Northwest Natl Lab, Seattle, WA 98109 USA.
[Fuller, J. C.] Pacific Northwest Natl Lab, Richland, WA USA.
RP Schneider, KP (reprint author), Battelle Seattle Res Ctr, Pacific Northwest Natl Lab, Seattle, WA 98109 USA.
EM kevin.schneider@pnl.gov; Jason.Fuller@pnl.gov
RI Fuller, Jason/C-9951-2014
OI Fuller, Jason/0000-0002-0462-0093
NR 17
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 7
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611900142
ER
PT S
AU Smith, JC
Beuning, S
Durrwachter, H
Ela, E
Hawkins, D
Kirby, B
Lasher, W
Lowell, J
Porter, K
Schuyler, K
Sotkiewicz, P
AF Smith, J. C.
Beuning, Stephen
Durrwachter, Henry
Ela, Erik
Hawkins, David
Kirby, Brendan
Lasher, Warren
Lowell, Jonathan
Porter, Kevin
Schuyler, Ken
Sotkiewicz, Paul
GP IEEE
TI Impact of Variable Renewable Energy on US Electricity Markets
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Ancillary service markets; bilateral markets; capacity markets;
electricity markets; market design; market evolution; market operation;
price responsive load markets; variable generation; wind generation
AB This paper reviews the design and operation of a number of large, regional organized markets in the US, as well as the operation of stand-alone single balancing area bilateral markets, from the viewpoint of integrating large amounts of variable output renewable energy sources. Significant differences between the two types of markets are noted. In addition, a series of shortcomings of the first generation market designs are discussed, and some thoughts on the design changes required to enable greater participation of variable output generators in the market are provided.
C1 [Smith, J. C.] Util Wind Integrat Grp, Reston, VA 22314 USA.
[Beuning, Stephen] Xcel Energy, Denver, CO USA.
[Durrwachter, Henry] ERCOT Mkt Serv Luminant Energy Co LLC, Dallas, TX USA.
[Ela, Erik] Natl Renewable Energy Lab, Golden, CO USA.
[Hawkins, David] CAISO, Folsom, CA USA.
[Kirby, Brendan] Pvt Consultant, Knoxville, TN USA.
[Lasher, Warren] ERCOT, Taylor, TX USA.
[Lowell, Jonathan] ISO, Wellington, New Zealand.
[Schuyler, Ken; Sotkiewicz, Paul] PJM Interconnect, Forge Vally, PA USA.
RP Smith, JC (reprint author), Util Wind Integrat Grp, Reston, VA 22314 USA.
NR 33
TC 0
Z9 0
U1 1
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 12
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905039
ER
PT S
AU Sullivan, MJ
Mercurio, MG
Schellenberg, JA
Eto, JH
AF Sullivan, Michael J.
Mercurio, Matthew G.
Schellenberg, Josh A.
Eto, Joseph H.
GP IEEE
TI How to Estimate the Value of Service Reliability Improvements
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Economics; education; planning; power distribution reliability; power
system reliability; power transmission reliability; reliability;
reliability estimation; statistics; technology planning
AB A robust methodology for estimating the value of service reliability improvements is presented. Although econometric models for estimating value of service (interruption costs) have been established and widely accepted, analysts often resort to applying relatively crude interruption cost estimation techniques in assessing the economic impacts of transmission and distribution investments. This paper first shows how the use of these techniques can substantially impact the estimated value of service improvements. A simple yet robust methodology that does not rely heavily on simplifying assumptions is presented. When a smart grid investment is proposed, reliability improvement is one of the most frequently cited benefits. Using the best methodology for estimating the value of this benefit is imperative. By providing directions on how to implement this methodology, this paper sends a practical, usable message to the industry.
C1 [Sullivan, Michael J.; Mercurio, Matthew G.; Schellenberg, Josh A.] Sullivan & Co, San Francisco, CA 94115 USA.
[Eto, Joseph H.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Sullivan, MJ (reprint author), Sullivan & Co, San Francisco, CA 94115 USA.
EM michaelsullivan@fscgroup.com; matthewmercurio@fscgroup.com;
joshschellenberg@fscgroup.com; jheto@lbl.gov
FU U.S. Department of Energy [DE-AC02-05CH11231]
FX This work was supported in part by the U.S. Department of Energy under
Contract No. DE-AC02-05CH11231.
NR 3
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 5
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611900046
ER
PT S
AU Ton, D
Irwin, C
Widergren, SE
AF Ton, D.
Irwin, C.
Widergren, S. E.
GP IEEE
TI Interoperability and the Federal Role
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE systems engineering; adaptive systems; system software; information
technology; communication system interfaces; software engineering
AB A smart grid is capable of integrating a broad array of generation resources and enables the participation of demand side resources in reliable system operation. To cost effectively realize this flexibility, the associated devices and systems need to connect and interact simply and reliably. Interoperability is the important ingredient to make this happen. Because the electric system transcends organizational boundaries between generators, electricity delivery companies, end-users, and other service providers, advancing interoperability between these organizations can be difficult to justify by individual organizations. But given the importance of a smart electric system to meet national economic, societal, and environmental objectives, a federal role is taking shape in the United States to improve the integration of automation elements and thus make smart grid a reality.
C1 [Ton, D.; Irwin, C.] US DOE, POB 999, Richland, WA 99352 USA.
[Widergren, S. E.] Pacific Northwest Natl Lab, Richland, WA 99352 USA.
RP Ton, D (reprint author), US DOE, POB 999, Richland, WA 99352 USA.
EM dan.ton@hq.doe.gov; chris.irwin@hq.doe.gov; steve.widergren@pnl.gov
FU U.S. Department of Energy and Pacific Northwest National Laboratory;
U.S. Department of Energy by Battelle [DE-AC65-76RLO1830]
FX This work is supported in part by the U.S. Department of Energy and
Pacific Northwest National Laboratory operated for the U.S. Department
of Energy by Battelle under Contract DE-AC65-76RLO1830
NR 12
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 4
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611900140
ER
PT S
AU Turitsyn, K
Sulc, P
Backhaus, S
Chertkov, M
AF Turitsyn, Konstantin
Sulc, Petr
Backhaus, Scott
Chertkov, Michael
GP IEEE
TI Distributed control of reactive power flow in a radial distribution
circuit with high photovoltaic penetration
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE Distributed Generation; Feeder Line; Power Flow; Voltage Control
ID DISTRIBUTION-SYSTEMS; CAPACITORS
AB We show how distributed control of reactive power can serve to regulate voltage and minimize resistive losses in a distribution circuit that includes a significant level of photovoltaic (PV) generation. To demonstrate the technique, we consider a radial distribution circuit with a single branch consisting of sequentially-arranged residential-scale loads that consume both real and reactive power. In parallel, some loads also have PV generation capability. We postulate that the inverters associated with each PV system are also capable of limited reactive power generation or consumption, and we seek to find the optimal dispatch of each inverter's reactive power to both maintain the voltage within an acceptable range and minimize the resistive losses over the entire circuit. We assume the complex impedance of the distribution circuit links and the instantaneous load and PV generation at each load are known. We compare the results of the optimal dispatch with a suboptimal local scheme that does not require any communication. On our model distribution circuit, we illustrate the feasibility of high levels of PV penetration and a significant (20% or higher) reduction in losses.
C1 [Turitsyn, Konstantin; Chertkov, Michael] Los Alamos Natl Lab, CNLS, POB 1663, Los Alamos, NM 87545 USA.
[Sulc, Petr] New Mexico Consortium, Los Alamos, NM 87544 USA.
[Backhaus, Scott] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
RP Turitsyn, K (reprint author), Los Alamos Natl Lab, CNLS, POB 1663, Los Alamos, NM 87545 USA.
EM turitsyn@lanl.gov; sulcpetr@gmail.com; backhaus@lanl.gov;
chertkov@lanl.gov
RI Backhaus, Scott/F-4285-2012; Turitsyn, Konstantin/K-5978-2012; Chertkov,
Michael/O-8828-2015
OI Turitsyn, Konstantin/0000-0002-7997-8962;
FU U.S. Department of Energy at Los Alamos National Laboratory [DE
C52-06NA25396]; NMC via NSF [CCF-0829945]
FX We are thankful to all the participants of the Optimization and Control
for Smart Grids LDRD DR project at Los Alamos and Smart Grid Seminar
Series at CNLS/LANL for multiple fruitful discussions and to Prof. Ross
Baldick for attracting our attention to the DistFlow studies [2], [1],
[9]. Research at LANL was carried out under the auspices of the National
Nuclear Security Administration of the U.S. Department of Energy at Los
Alamos National Laboratory under Contract No. DE C52-06NA25396. PS and
MC acknowledges partial support of NMC via NSF collaborative grant
CCF-0829945 on Harnessing Statistical Physics for Computing and
Communications.
NR 16
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611902101
ER
PT S
AU Widergren, S
Levinson, A
Mater, J
Drummond, R
AF Widergren, S.
Levinson, A.
Mater, J.
Drummond, R.
GP IEEE
TI Smart Grid Interoperability Maturity Model
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE systems engineering; adaptive systems; system software; information
technology; communication system interfaces; software engineering
AB The integration of automation associated with electricity resources (including transmission and distribution automation and demand-side resources operated by end-users) is key to supporting greater efficiencies and incorporating variable renewable resources and electric vehicles into the power system. The integration problems faced by this community are analogous to those faced in the health industry, emergency services, and other complex communities with many stakeholders. To highlight this issue and encourage communication and the development of a smart grid interoperability community, the GridWise (R) Architecture Council (GWAC) created an Interoperability Context-Setting Framework. This "conceptual model" has been helpful to explain the importance of organizational alignment in addition to technical and informational interface specifications for "smart grid" devices and systems. As a next step to building a community sensitive to interoperability, the GWAC is developing a smart grid interoperability maturity model (SG IMM) based on work done by others to address similar circumstances. The objective is to create a tool or set of tools that encourages a culture of interoperability in this emerging community. The tools would measure status and progress, analyze gaps, and prioritize efforts to improve the situation.
C1 [Widergren, S.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Levinson, A.; Mater, J.] Qual Log, Boise, ID USA.
RP Widergren, S (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM steve.widergren@pnl.gov; alex.levinson@lmco.com;
jmater@qualitylogic.com; rikd@drummondgroup.com
FU U.S. Department of Energy; Battelle [DE-AC65-76RLO1830]
FX This work is supported in part by the Pacific Northwest National
Laboratory operated for the U.S. Department of Energy by Battelle under
Contract DE-AC65-76RLO1830. A. Levinson is with Lockheed Martin, J.
Mater is with QualityLogic, R. Drummond is with Drummond Group, and S.
Widergren, is with Pacific Northwest National Laboratory
NR 10
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611902158
ER
PT J
AU Widergren, SE
Kirkham, H
AF Widergren, S. E.
Kirkham, H.
GP IEEE
TI Smart Grid - Transforming Power System Operations
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT PES General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
DE system operations; load modeling; demand response; market systems;
distributed generation; communication system interfaces; software
engineering
AB Electric power systems are entering a new realm of operations. Large amounts of variable generation tax our ability to reliably operate the system. Couple this with a greater reliance on the electricity network to serve consumer demand that is likely to rise significantly even as we drive for greater efficiency. Trade-offs between energy and environmental needs will be constantly negotiated, while a reliable supply of electricity needs even greater assurance in a world where threats of disruption have risen. Smart grid capabilities are being proposed to help address the challenges confronting system operations. This paper reviews the impact of smart grid functionality on transforming power system operations. It explores models for distributed energy resources (DER - generation, storage, and load) that are appearing on the system. It reviews the evolving nature of electricity markets to deal with this complexity and a change of emphasis on signals from these markets to affect power system control. Smart grid capabilities will also impact reliable operations, while cyber security issues must be addressed as a culture change that influences all system design, implementation, and maintenance. Lastly, the paper explores significant questions for further research and the need for a simulation environment that supports such investigation and informs deployments to mitigate operational issues as they arise.
C1 [Widergren, S. E.; Kirkham, H.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Widergren, SE (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM steve.widergren@pnl.gov; harold.kirkham@pnl.gov
NR 10
TC 0
Z9 0
U1 1
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 5
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611901092
ER
PT S
AU Zhou, N
Trudnowski, D
Pierre, J
Mittelstadt, W
AF Zhou, Ning
Trudnowski, Dan
Pierre, John
Mittelstadt, William
GP IEEE
TI Electromechanical Mode On-line Estimation using Regularized Robust RLS
Methods
SO IEEE POWER AND ENERGY SOCIETY GENERAL MEETING 2010
SE IEEE Power and Energy Society General Meeting PESGM
LA English
DT Proceedings Paper
CT IEEE-Power-and-Energy-Society General Meeting
CY JUL 25-29, 2010
CL Minneapolis, MN
C1 [Zhou, Ning] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Trudnowski, Dan] Univ Montana, Missoula, MT 59812 USA.
[Pierre, John] Univ Wyoming, Laramie, WY 82071 USA.
[Mittelstadt, William] Bonneville Power Adm, Bonneville, UT USA.
RP Zhou, N (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
FU U.S. Department of Energy [DE-AC05- 76RL01830, TPWRS-00084-2008]; EPSCoR
[DE-FG02-03ER46044, DE-FC26-06NT42750]; BPA [162-0027]; Pacific
Northwest National Laboratory
FX This work was supported in part by the U.S. Department of Energy and
EPSCoR under grants DE-FG02-03ER46044 and DE-FC26-06NT42750 and in part
by BPA under contract 162-0027. The Pacific Northwest National
Laboratory is operated by Battelle for the U.S. Department of Energy
under Contract DE-AC05- 76RL01830. Paper no. TPWRS-00084-2008
NR 0
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1944-9925
BN 978-1-4244-8357-0
J9 IEEE POW ENER SOC GE
PY 2010
PG 1
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO76
UT WOS:000287611905006
ER
PT J
AU Frincke, DA
Ford, R
AF Frincke, Deborah A.
Ford, Richard
TI Building a Better Boot Camp
SO IEEE SECURITY & PRIVACY
LA English
DT Editorial Material
C1 [Frincke, Deborah A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Ford, Richard] Florida Tech, Melbourne, FL USA.
RP Frincke, DA (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM deborah.frincke@pnl.gov; rford@fit.edu
NR 3
TC 0
Z9 0
U1 1
U2 2
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1540-7993
J9 IEEE SECUR PRIV
JI IEEE Secur. Priv.
PD JAN-FEB
PY 2010
VL 8
IS 1
BP 68
EP 71
PG 4
WC Computer Science, Information Systems; Computer Science, Software
Engineering
SC Computer Science
GA 555QE
UT WOS:000274527500013
ER
PT J
AU Khurana, H
Hadley, M
Lu, N
Frincke, DA
AF Khurana, Himanshu
Hadley, Mark
Lu, Ning
Frincke, Deborah A.
TI Smart-Grid Security Issues
SO IEEE SECURITY & PRIVACY
LA English
DT Editorial Material
C1 [Khurana, Himanshu] Univ Illinois, Informat Trust Inst, Urbana, IL 61801 USA.
[Hadley, Mark; Lu, Ning; Frincke, Deborah A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Khurana, H (reprint author), Univ Illinois, Informat Trust Inst, Urbana, IL 61801 USA.
EM hkhurana@illinois.edu; mark.hadley@pnl.gov; ning.lu@pnl.gov;
deborah.frincke@pnl.gov
NR 5
TC 169
Z9 172
U1 3
U2 20
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1540-7993
J9 IEEE SECUR PRIV
JI IEEE Secur. Priv.
PD JAN-FEB
PY 2010
VL 8
IS 1
BP 81
EP 85
PG 5
WC Computer Science, Information Systems; Computer Science, Software
Engineering
SC Computer Science
GA 555QE
UT WOS:000274527500016
ER
PT J
AU Davis, CE
Frank, M
Mizaikoff, B
Oser, H
AF Davis, Cristina E.
Frank, Matthias
Mizaikoff, Boris
Oser, Harald
TI The Future of Sensors and Instrumentation for Human Breath Analysis
SO IEEE SENSORS JOURNAL
LA English
DT Editorial Material
ID VOLATILE ORGANIC-COMPOUNDS
C1 [Davis, Cristina E.] Univ Calif Davis, Davis, CA 95616 USA.
[Frank, Matthias] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Mizaikoff, Boris] Univ Ulm, Inst Analyt & Bioanalyt Chem, D-89081 Ulm, Germany.
[Oser, Harald] SRI Int Inc, Menlo Pk, CA 94025 USA.
RP Davis, CE (reprint author), Univ Calif Davis, Davis, CA 95616 USA.
EM cedavis@ucdavis.edu; frank1@llnl.gov; boris.mizaikoff@uni-ulm.de;
harald.oser@sri.com
RI Mizaikoff, Boris/G-9959-2013; Davis, Cristina/C-4437-2008; Frank,
Matthias/O-9055-2014
OI Mizaikoff, Boris/0000-0002-5583-7962;
NR 3
TC 8
Z9 8
U1 0
U2 8
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA
SN 1530-437X
J9 IEEE SENS J
JI IEEE Sens. J.
PD JAN
PY 2010
VL 10
IS 1
BP 3
EP 6
DI 10.1109/JSEN.2009.2035675
PG 4
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Physics, Applied
SC Engineering; Instruments & Instrumentation; Physics
GA 530QU
UT WOS:000272608200001
ER
PT J
AU Davis, CE
Bogan, MJ
Sankaran, S
Molina, MA
Loyola, BR
Zhao, WX
Benner, WH
Schivo, M
Farquar, GR
Kenyon, NJ
Frank, M
AF Davis, Cristina E.
Bogan, Michael J.
Sankaran, Shankar
Molina, Mary A.
Loyola, Bryan R.
Zhao, Weixiang
Benner, W. Henry
Schivo, Michael
Farquar, George R.
Kenyon, Nicholas J.
Frank, Matthias
TI Analysis of Volatile and Non-Volatile Biomarkers in Human Breath Using
Differential Mobility Spectrometry (DMS)
SO IEEE SENSORS JOURNAL
LA English
DT Article
DE Biosensor; breath analysis; differential mobility spectrometer (DMS);
electrospray ionization (ESI); exhaled breath condensate (EBC); gas
chromatography (GC); microelectro-mechanical systems (MEMS)
ID SOLID-PHASE MICROEXTRACTION; EXHALED BREATH; GAS-CHROMATOGRAPHY;
LUNG-CANCER; QUANTITATIVE-ANALYSIS; CAMPYLOBACTER-PYLORI;
PATTERN-RECOGNITION; MASS-SPECTROMETRY; ORGANIC-COMPOUNDS; CONDENSATE
AB Exhaled human breath contains thousands of chemicals that are potential biomarkers of disease or chemical exposure. Although many bench-top analytical instruments could measure concentrations of these chemicals, small and portable systems have the best advantage of being used in a clinical point-of-care environment or in a field setting. Here, we demonstrate coupling a miniature differential mobility spectrometer (DMS) with both a gas chromatograph (GC) and separately an electrospray ionization (ESI) module to analyze exhaled breath condensate. Our combined GC/DMS and ESI/DMS instrument systems are capable of measuring an extremely large number of chemical analytes contained in exhaled breath condensate. We have established methodologies for detecting single compounds and approximate the limits of detection for our systems. The detection limit and analytical power are clinically relevant for many potential biomarkers, and suggests our device may have many applications for disease diagnostics in human breath analysis.
C1 [Davis, Cristina E.; Sankaran, Shankar; Molina, Mary A.; Loyola, Bryan R.; Zhao, Weixiang; Schivo, Michael; Kenyon, Nicholas J.] Univ Calif Davis, Davis, CA 95616 USA.
[Bogan, Michael J.; Benner, W. Henry; Farquar, George R.; Frank, Matthias] Lawrence Livermore Natl Lab, Phys Sci Directorate, Livermore, CA 94551 USA.
RP Davis, CE (reprint author), Univ Calif Davis, Davis, CA 95616 USA.
EM cedavis@ucdavis.edu
RI Bogan, Mike/I-6962-2012; Davis, Cristina/C-4437-2008; Frank,
Matthias/O-9055-2014
OI Bogan, Mike/0000-0001-9318-3333;
FU National Center for Research Resources (NCRR) [UL1 RR024146]; National
Institutes of Health (NIH); Defense Advanced Research Projects Agency;
Microsystems Technology Office; American Petroleum Institute; U.S.
Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; Lawrence Livermore National Laboratory [LDRD
05-ERD-053]
FX Manuscript received September 04, 2009; accepted September 18, 2009.
Current version published December 18, 2009. This is an expanded paper
from the IEEE SENSORS 2007 Conference. This work was partially supported
by the following agencies: grant number UL1 RR024146 from the National
Center for Research Resources (NCRR), a component of the National
Institutes of Health (NIH), and NIH Roadmap for Medical Research [CD,
NK]; the Defense Advanced Research Projects Agency, Microsystems
Technology Office for partially supporting this work (PM Dennis Polla)
[CD, MF], and the American Petroleum Institute [CD]; the U.S. Department
of Energy by Lawrence Livermore National Laboratory in part under
Contract DE-AC52-07NA27344, Lawrence Livermore National Laboratory LDRD
05-ERD-053 [MF]. The contents of this manuscript are solely the
responsibility of the authors and do not necessarily represent the
official view of the funding agencies. The associate editor coordinating
the review of this paper and approving it for publication was Dr. Harald
Oser.
NR 40
TC 21
Z9 21
U1 4
U2 25
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA
SN 1530-437X
J9 IEEE SENS J
JI IEEE Sens. J.
PD JAN
PY 2010
VL 10
IS 1
BP 114
EP 122
DI 10.1109/JSEN.2009.2033562
PG 9
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Physics, Applied
SC Engineering; Instruments & Instrumentation; Physics
GA 533SL
UT WOS:000272845100002
ER
PT J
AU Iyer, V
Makarov, SN
Harty, DD
Nekoogar, F
Ludwig, R
AF Iyer, Vishwanath
Makarov, Sergey N.
Harty, Daniel D.
Nekoogar, Faranak
Ludwig, Reinhold
TI A Lumped Circuit for Wideband Impedance Matching of a Non-Resonant,
Short Dipole or Monopole Antenna
SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
LA English
DT Article
DE Dipole antennas; impedance matching; small antennas
ID EXPLICIT FORMULAS; BANDWIDTH; NETWORKS
AB A new technique is proposed for wideband impedance matching of short dipole- or monopole-like antennas in the VHF-UHF bands. Instead of constructing the network topology for every particular antenna, we propose a simple network of one fixed topology. This network is an inductive L-section cascaded with a high-pass T-section. The network includes five discrete components-three inductors and two capacitors. Although the approach is not general, the paper proves that matching with the present network is close to the theoretical limit impedance matching confirmed by Bode-Fano theory. The matching performance also approaches the performance of the Carlin's equalizer for short dipoles and monopoles. The dipoles and monopoles may have different shape and different matching bandwidths. By using the matching circuit of fixed topology we avoid greater difficulties related to the practical realization of the Carlin's equalizer. The key point is to minimize the antenna's matching network complexity (and loss) so that the circuit can be designed and constructed in a straightforward manner.
C1 [Iyer, Vishwanath; Makarov, Sergey N.; Harty, Daniel D.; Ludwig, Reinhold] Worcester Polytech Inst, ECE Dept, Worcester, MA 01609 USA.
[Nekoogar, Faranak] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Iyer, V (reprint author), Worcester Polytech Inst, ECE Dept, Worcester, MA 01609 USA.
EM vishiyer@wpi.edu; makarov@wpi.edu; ddharty@wpi.edu; nekoogar1@llnl.gov;
ludwig@wpi.edu
NR 19
TC 8
Z9 8
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA
SN 0018-926X
J9 IEEE T ANTENN PROPAG
JI IEEE Trans. Antennas Propag.
PD JAN
PY 2010
VL 58
IS 1
BP 18
EP 26
DI 10.1109/TAP.2009.2036192
PG 9
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 540KZ
UT WOS:000273331800003
ER
PT J
AU Rosten, E
Porter, R
Drummond, T
AF Rosten, Edward
Porter, Reid
Drummond, Tom
TI Faster and Better: A Machine Learning Approach to Corner Detection
SO IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE
LA English
DT Review
DE Corner detection; feature detection
ID CONTOUR CHAIN CODE; DIGITAL CURVES; DOMINANT POINTS; PLANAR CURVES;
DETECTION ALGORITHM; CURVATURE FUNCTION; HOUGH TRANSFORM; ANGLE
DETECTION; DESCRIPTORS; PERFORMANCE
AB The repeatability and efficiency of a corner detector determines how likely it is to be useful in a real-world application. The repeatability is important because the same scene viewed from different positions should yield features which correspond to the same real-world 3D locations [1]. The efficiency is important because this determines whether the detector combined with further processing can operate at frame rate. Three advances are described in this paper. First, we present a new heuristic for feature detection and, using machine learning, we derive a feature detector from this which can fully process live PAL video using less than 5 percent of the available processing time. By comparison, most other detectors cannot even operate at frame rate (Harris detector 115 percent, SIFT 195 percent). Second, we generalize the detector, allowing it to be optimized for repeatability, with little loss of efficiency. Third, we carry out a rigorous comparison of corner detectors based on the above repeatability criterion applied to 3D scenes. We show that, despite being principally constructed for speed, on these stringent tests, our heuristic detector significantly outperforms existing feature detectors. Finally, the comparison demonstrates that using machine learning produces significant improvements in repeatability, yielding a detector that is both very fast and of very high quality.
C1 [Rosten, Edward; Drummond, Tom] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England.
[Porter, Reid] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
RP Rosten, E (reprint author), Univ Cambridge, Dept Engn, Trumpington St, Cambridge CB2 1PZ, England.
EM er258@cam.ac.uk; rporter@lanl.gov; twd20@cam.ac.uk
RI Drummond, Tom/A-4696-2011
OI Drummond, Tom/0000-0001-8204-5904
NR 102
TC 388
Z9 453
U1 21
U2 121
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0162-8828
EI 1939-3539
J9 IEEE T PATTERN ANAL
JI IEEE Trans. Pattern Anal. Mach. Intell.
PD JAN
PY 2010
VL 32
IS 1
BP 105
EP 119
DI 10.1109/TPAMI.2008.275
PG 15
WC Computer Science, Artificial Intelligence; Engineering, Electrical &
Electronic
SC Computer Science; Engineering
GA 520FQ
UT WOS:000271826700009
PM 19926902
ER
PT J
AU Lee, J
Pan, R
AF Lee, Jinsuk
Pan, Rong
TI Analyzing step-stress accelerated life testing data using generalized
linear models
SO IIE TRANSACTIONS
LA English
DT Article
DE Accelerated life testing; Bayesian statistics; inference; reliability
engineering
ID EXPONENTIAL-DISTRIBUTION; INFERENCE MODEL; FAILURE
AB In this article the parameter estimation method of Step-Stress Accelerated Life Testing (SSALT) model is discussed by utilizing techniques of Generalized Linear Model (GLM). A multiple progressive SSALT with exponential failure data and right censoring is analyzed. The likelihood function of the SSALT is treated as being a censoring variate with Poisson distribution and the life-stress relationship is defined by a log link function of a GLM. Both the maximum likelihood estimation and the Bayesian estimation of GLM parameters are discussed. The iteratively weighted least squares method is implemented to obtain the maximum likelihood estimation solution. The Bayesian estimation is derived by applying Jeffreys' non-informative prior and the Markov chain Monte Carlo method. Finally, a real industrial example is presented to demonstrate these estimation methods.
C1 [Pan, Rong] Arizona State Univ, Sch Comp Informat & Decis Syst Engn, Tempe, AZ 85287 USA.
[Lee, Jinsuk] Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Pan, R (reprint author), Arizona State Univ, Sch Comp Informat & Decis Syst Engn, Tempe, AZ 85287 USA.
EM jinsuk.lee@nrel.gov; rong.pan@asu.edu
FU NSF [DMI-0654417]; Society of Reliability Engineers
FX We sincerely thank one anonymous referee for a stimulating discussion on
data diagnosis and Bayesian analysis, and we thank Dr. Wayne Nelson for
providing us the experimental context of the example used in this
article. The research is partially supported by the NSF grant
DMI-0654417.; Rong Pan is an Assistant Professor of Industrial
Engineering at the School of Computing, Informatics and Decision Systems
Engineering, Arizona State University. He received his Ph.D. degree in
Industrial Engineering from Penn State University in 2002. His research
interests include failure time data analysis, design of experiments,
multivariate statistical quality control, time series analysis, and
control. He was the recipient of the 2008 Stan Ofsthun Award of the
Society of Reliability Engineers. He is a senior member of ASQ and a
member of SRE, IIE, and INFORMS.
NR 24
TC 9
Z9 16
U1 0
U2 8
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0740-817X
J9 IIE TRANS
JI IIE Trans.
PY 2010
VL 42
IS 8
BP 589
EP 598
AR PII 922538754
DI 10.1080/07408170903459976
PG 10
WC Engineering, Industrial; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 602FL
UT WOS:000278123800005
ER
PT S
AU Grazzini, J
Dillard, S
Soille, P
AF Grazzini, Jacopo
Dillard, Scott
Soille, Pierre
BE Bruzzone, L
TI A new generic method for the semi-automatic extraction of river and road
networks in low and mid-resolution satellite images
SO IMAGE AND SIGNAL PROCESSING FOR REMOTE SENSING XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Image and Signal Processing for Remote Sensing XVI
CY SEP 20-22, 2010
CL Toulouse, FRANCE
SP SPIE
DE Line networks; roads; rivers; semi-automatic extraction; cost path
technique; mathematical morphology; hydrological models
ID REMOTE-SENSING IMAGES; AERIAL IMAGES; LINEAR FEATURES; CLASSIFICATION;
TRACKING; MINIMUM; MODELS
AB This paper addresses the problem of semi-automatic extraction of road or hydrographic networks in satellite images. For that purpose, we propose an approach combining concepts arising from mathematical morphology and hydrology. The method exploits both geometrical and topological characteristics of rivers/roads and their tributaries in order to reconstruct the complete networks. It assumes that the images satisfy the following two general assumptions, which are the minimum conditions for a road/river network to be identifiable and are usually verified in low- to mid-resolution satellite images: (i) visual constraint: most pixels composing the network have similar spectral signature that is distinguishable from most of the surrounding areas; (ii) geometric constraint: a line is a region that is relatively long and narrow, compared with other objects in the image. While this approach fully exploits local (roads/rivers are modeled as elongated regions with a smooth spectral signature in the image and a maximum width) and global (they are structured like a tree) characteristics of the networks, further directional information about the image structures is incorporated. Namely, an appropriate anisotropic metric is designed by using both the characteristic features of the target network and the eigen-decomposition of the gradient structure tensor of the image. Following, the geodesic propagation from a given network seed with this metric is combined with hydrological operators for overland flow simulation to extract the paths which contain most line evidence and identify them with the target network.
C1 [Grazzini, Jacopo] Los Alamos Natl Lab, Int Space & Response Div, Los Alamos, NM 87545 USA.
RP Grazzini, J (reprint author), Los Alamos Natl Lab, Int Space & Response Div, POB 1663, Los Alamos, NM 87545 USA.
EM grazzja@lanl.gov; scott.dillard@pnl.gov; pierre.soille@jrc.ec.europa.eu
NR 36
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8347-8
J9 PROC SPIE
PY 2010
VL 7830
AR 783007
DI 10.1117/12.865052
PG 10
WC Engineering, Electrical & Electronic; Remote Sensing; Optics
SC Engineering; Remote Sensing; Optics
GA BTQ36
UT WOS:000287764200005
ER
PT S
AU Grazzini, J
Dillard, S
Prasad, L
AF Grazzini, Jacopo
Dillard, Scott
Prasad, Lakshman
BE Bruzzone, L
TI Simultaneous hierarchical segmentation and vectorization of satellite
images through combined non-uniform data sampling and anisotropic
triangulation
SO IMAGE AND SIGNAL PROCESSING FOR REMOTE SENSING XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Image and Signal Processing for Remote Sensing XVI
CY SEP 20-22, 2010
CL Toulouse, FRANCE
SP SPIE
DE Hierarchical segmentation; vectorization; superpixel; Delaunay
triangulation; polygons; trixels; gradient structure tensor; subpixel
edge detection
ID CONSTRAINED CONNECTIVITY; CLASSIFICATION; OBJECTS; EDGE
AB The automatic detection, recognition, and segmentation of object classes in remote sensed images is of crucial importance for scene interpretation and understanding. However, it is a difficult task because of the high variability of satellite data. Indeed, the observed scenes usually exhibit a high degree of complexity, where complexity refers to the large variety of pictorial representations of objects with the same semantic meaning and also to the extensive amount of available details. Therefore, there is still a strong demand for robust techniques for automatic information extraction and interpretation of satellite images. In parallel, there is a growing interest in techniques that can extract vector features directly from such imagery. In this paper, we investigate the problem of automatic hierarchical segmentation and vectorization of multispectral satellite images. We propose a new algorithm composed of the following steps: (i) a non-uniform sampling scheme extracting most salient pixels in the image, (ii) an anisotropic triangulation constrained by the sampled pixels taking into account both strength and directionality of local structures present in the image, (iii) a polygonal grouping scheme merging, through techniques based on perceptual information, the obtained segments to a smaller quantity of superior vectorial objects. Besides its computational efficiency, this approach provides a meaningful polygonal representation for subsequent image analysis and/or interpretation.
C1 [Grazzini, Jacopo; Prasad, Lakshman] Los Alamos Natl Lab, Int Space & Response Div, Los Alamos, NM 87545 USA.
RP Grazzini, J (reprint author), Los Alamos Natl Lab, Int Space & Response Div, POB 1663, Los Alamos, NM 87545 USA.
EM grazzja@lanl.gov; scott.dillard@pnl.gov; prasad@lanl.gov
OI Prasad, Lakshman/0000-0003-3967-3643
NR 48
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8347-8
J9 PROC SPIE
PY 2010
VL 7830
AR 78300F
DI 10.1117/12.865047
PG 13
WC Engineering, Electrical & Electronic; Remote Sensing; Optics
SC Engineering; Remote Sensing; Optics
GA BTQ36
UT WOS:000287764200013
ER
PT S
AU Karnowski, TP
Cunningham, MF
Goddard, JS
Cheriyadat, AM
Hornback, DE
Fabris, L
Kerekes, RA
Ziock, KP
Gee, TF
AF Karnowski, Thomas P.
Cunningham, Mark F.
Goddard, James S.
Cheriyadat, Anil M.
Hornback, Donald E.
Fabris, Lorenzo
Kerekes, Ryan A.
Ziock, Klaus-Peter
Gee, Timothy F.
BE Fofi, D
Niel, KS
TI Motion estimation accuracy for visible-light/gamma ray imaging fusion
for portable portal monitoring
SO IMAGE PROCESSING: MACHINE VISION APPLICATIONS III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Image Processing - Machine Vision Applications III
CY JAN 19-21, 2010
CL San Jose, CA
SP Soc Imaging Sci & Technol (IS&T), SPIE
DE Radiation monitoring; motion estimation
ID GAMMA-RAYS; LARGE-AREA; PERFORMANCE; ARRAYS
AB The use of radiation sensors as portal monitors is increasing due to heightened concerns over the smuggling of fissile material. Portable systems that can detect significant quantities of fissile material that might be present in vehicular traffic are of particular interest. We have constructed a prototype, rapid-deployment portal gamma-ray imaging portal monitor that uses machine vision and gamma-ray imaging to monitor multiple lanes of traffic. Vehicles are detected and tracked by using point detection and optical flow methods as implemented in the OpenCV software library. Points are clustered together but imperfections in the detected points and tracks cause errors in the accuracy of the vehicle position estimates. The resulting errors cause a "blurring" effect in the gamma image of the vehicle. To minimize these errors, we have compared a variety of motion estimation techniques including an estimate using the median of the clustered points, a "best-track" filtering algorithm, and a constant velocity motion estimation model. The accuracy of these methods are contrasted and compared to a manually verified ground-truth measurement by quantifying the root-mean-square differences in the times the vehicles cross the gamma-ray image pixel boundaries compared with a ground-truth manual measurement.
C1 [Karnowski, Thomas P.; Goddard, James S.; Cheriyadat, Anil M.; Hornback, Donald E.; Fabris, Lorenzo; Kerekes, Ryan A.; Ziock, Klaus-Peter] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Karnowski, TP (reprint author), Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM karnowskitp@ornl.gov
RI Fabris, Lorenzo/E-4653-2013
OI Fabris, Lorenzo/0000-0001-5605-5615
NR 15
TC 0
Z9 0
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7931-0
J9 PROC SPIE
PY 2010
VL 7538
AR 75380F
DI 10.1117/12.838428
PG 12
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BRR34
UT WOS:000283488400014
ER
PT S
AU Maia, F
MacDowell, A
Marchesini, S
Padmore, HA
Parkinson, DY
Pien, J
Schirotzek, A
Yang, C
AF Maia, F.
MacDowell, A.
Marchesini, S.
Padmore, H. A.
Parkinson, D. Y.
Pien, J.
Schirotzek, A.
Yang, C.
BE Bones, PJ
Fiddy, MA
Millane, RP
TI Compressive Phase Contrast Tomography
SO IMAGE RECONSTRUCTION FROM INCOMPLETE DATA VI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Image Reconstruction from Incomplete Data VI
CY AUG 02-03, 2010
CL San Diego, CA
DE Compressive Sensing; non uniform FFT; Radon transform; GPU
AB When x-rays penetrate soft matter, their phase changes more rapidly than their amplitude. Interference effects visible with high brightness sources creates higher contrast, edge enhanced images. When the object is piecewise smooth (made of big blocks of a few components), such higher contrast datasets have a sparse solution. We apply basis pursuit solvers to improve SNR, remove ring artifacts, reduce the number of views and radiation dose from phase contrast datasets collected at the Hard X-Ray Micro Tomography Beamline at the Advanced Light Source. We report a GPU code for the most computationally intensive task, the gridding and inverse gridding algorithm (non uniform sampled Fourier transform).
C1 [Maia, F.; Padmore, H. A.; Parkinson, D. Y.; Schirotzek, A.] Univ Calif Berkeley, Lawrence Berkeley Lab, Natl Energy Res Sci Comp Ctr, Berkeley, CA 94720 USA.
RP Marchesini, S (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
EM smarchesini@lbl.gov
RI MacDowell, Alastair/K-4211-2012; Rocha Neves Couto Maia,
Filipe/C-3146-2014; Parkinson, Dilworth/A-2974-2015
OI Rocha Neves Couto Maia, Filipe/0000-0002-2141-438X; Parkinson,
Dilworth/0000-0002-1817-0716
NR 6
TC 2
Z9 2
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8296-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7800
AR 78000F
DI 10.1117/12.861946
PG 5
WC Optics; Imaging Science & Photographic Technology; Radiology, Nuclear
Medicine & Medical Imaging
SC Optics; Imaging Science & Photographic Technology; Radiology, Nuclear
Medicine & Medical Imaging
GA BSU69
UT WOS:000285833200013
ER
PT S
AU Yang, C
Wang, Z
Marchesini, S
AF Yang, Chao
Wang, Zhen
Marchesini, Stefano
BE Bones, PJ
Fiddy, MA
Millane, RP
TI Orientation Determination for 3D Single Molecule Diffraction Imaging
SO IMAGE RECONSTRUCTION FROM INCOMPLETE DATA VI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Image Reconstruction from Incomplete Data VI
CY AUG 02-03, 2010
CL San Diego, CA
DE diffractive imaging; common lines; common curves; Ewald sphere;
eigenvalue; optimization
AB The latest development of ultrafast free electron laser makes it now possible to perform single molecule diffraction imaging. In such an experiment, two-dimensional (2D) diffraction images of randomly oriented molecules of the same type (single molecules) can be captured within femtosecond exposure time. These images can then be used to deduce the 3D structure of the molecule. Two of the most challenging problems that must be solved in order to obtain a high resolution 3D reconstruction are: 1) the determination of the relative orientations of 2D diffraction images; 2) the retrieval of the phase information of a reconstructed 3D diffraction pattern. In this paper, we will focus on the first problem and discuss the use of common curve detection techniques to deduce the relative orientations of 2D diffraction images produced from single-molecule diffraction experiments. Such a technique is based on the fact that Ewald spheres associated with two diffraction images of the same molecule intersect along a common curve in the reciprocal space. By detecting these curves on each diffraction image, we can deduce the relative orientations of diffraction images by solving an eigenvalue problem. When the radius of the Ewald sphere is sufficiently large relatively to the region of reciprocal space we are interested in, the Ewald sphere becomes flat near the origin of the reciprocal space, and common curves reduce to common lines. In this case, the orientation determination problem is similar to the one that arises in single particle cryo-electron microscopy. The recent work of Singer and Shkolnisky [1] shows that the orientation determination problem can be solved by computing the largest eigenvalues of a symmetric matrix constructed from the common lines identified among cryo-EM projection images. In this paper, we will extend their technique to diffraction images on which common curves can be identified.
C1 [Yang, Chao] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Yang, C (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
EM CYang@lbl.gov
NR 11
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8296-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7800
AR 78000P
DI 10.1117/12.860810
PG 10
WC Optics; Imaging Science & Photographic Technology; Radiology, Nuclear
Medicine & Medical Imaging
SC Optics; Imaging Science & Photographic Technology; Radiology, Nuclear
Medicine & Medical Imaging
GA BSU69
UT WOS:000285833200023
ER
PT S
AU Zheng, YL
Doerschuk, PC
AF Zheng, Yili
Doerschuk, Peter C.
BE Bones, PJ
Fiddy, MA
Millane, RP
TI 3-D signal reconstruction from noisy projection data for stochastic
objects as a generalization of Gaussian mixture parameter estimation
SO IMAGE RECONSTRUCTION FROM INCOMPLETE DATA VI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Image Reconstruction from Incomplete Data VI
CY AUG 02-03, 2010
CL San Diego, CA
DE statistical inverse problem; statistical signal reconstruction;
tomography; cryo electron microscopy; virus structure
ID CRYO ELECTRON-MICROSCOPY; 3-DIMENSIONAL RECONSTRUCTION;
MAXIMUM-LIKELIHOOD; IMAGES; MICROGRAPHS; VIRION
AB A statistical estimation problem for determining 3-D reconstructions from a single 2-D projection image of each of multiple objects when the objects are heterogeneous is described. The method is based on a Gaussian mixture description of the heterogeneity and is motivated by cryo electron microscopy of biological objects.
C1 [Zheng, Yili] Univ Calif Berkeley, Lawrence Berkeley Lab, Computat Res Div, Berkeley, CA 94720 USA.
RP Doerschuk, PC (reprint author), Cornell Univ, Weill Hall, Ithaca, NY 14853 USA.
EM YZheng@lbl.gov; pd83@cornell.edu
RI Doerschuk, Peter/A-3424-2016
OI Doerschuk, Peter/0000-0002-4517-6582
NR 17
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8296-9
J9 PROC SPIE
PY 2010
VL 7800
AR 78000L
DI 10.1117/12.862064
PG 8
WC Optics; Imaging Science & Photographic Technology; Radiology, Nuclear
Medicine & Medical Imaging
SC Optics; Imaging Science & Photographic Technology; Radiology, Nuclear
Medicine & Medical Imaging
GA BSU69
UT WOS:000285833200019
ER
PT B
AU Woicik, PA
Alia-Klein, N
Volkow, ND
Goldstein, RZ
AF Woicik, P. A.
Alia-Klein, N.
Volkow, N. D.
Goldstein, R. Z.
BE Borsook, D
Beccera, L
Bullmore, E
Hargreaves, R
TI Neuroimaging Human Drug Addiction
SO IMAGING IN CNS DRUG DISCOVERY AND DEVELOPMENT: IMPLICATIONS FOR DISEASE
AND THERAPY
LA English
DT Article; Book Chapter
ID CEREBRAL-BLOOD-FLOW; POSITRON-EMISSION-TOMOGRAPHY; OBSESSIVE-COMPULSIVE
DISORDER; COCAINE-SEEKING BEHAVIOR; BRAIN GLUCOSE-METABOLISM;
METHAMPHETAMINE-DEPENDENT SUBJECTS; PROGRESSIVE RATIO SCHEDULE;
ABSTINENT MARIJUANA USERS; ANTERIOR CINGULATE CORTEX; STRIATAL DOPAMINE
RELEASE
C1 [Woicik, P. A.; Alia-Klein, N.; Goldstein, R. Z.] Brookhaven Natl Lab, Ctr Translat Neuroimaging, Upton, NY 11973 USA.
[Volkow, N. D.] NIDA, Bethesda, MD 20892 USA.
RP Woicik, PA (reprint author), Brookhaven Natl Lab, Ctr Translat Neuroimaging, Upton, NY 11973 USA.
EM pwoicik@bnl.uov; rgoldstein@bnl.gov
NR 232
TC 0
Z9 0
U1 2
U2 4
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-0133-0
PY 2010
BP 263
EP 289
DI 10.1007/978-1-4419-0134-7_17
PG 27
WC Biotechnology & Applied Microbiology; Neurosciences; Pharmacology &
Pharmacy
SC Biotechnology & Applied Microbiology; Neurosciences & Neurology;
Pharmacology & Pharmacy
GA BMI15
UT WOS:000272425300017
ER
PT B
AU George, JS
AF George, John S.
BE Roe, AW
TI Casting Light on Neural Function: A Subjective History
SO IMAGING THE BRAIN WITH OPTICAL METHODS
LA English
DT Article; Book Chapter
ID INTRINSIC OPTICAL SIGNALS; ACTION-POTENTIAL PROPAGATION; MONKEY STRIATE
CORTEX; SQUID GIANT-AXONS; VISUAL-CORTEX; NONINVASIVE DETECTION;
NEURONAL-ACTIVITY; BRAIN ACTIVATION; SENSITIVE DYES; RETINAL MODEL
AB Optical methods offer a number of advantages for the study of neural systems. Optical techniques are relatively noninvasive, and offer wide field of view, in addition to high resolution in time and in space. Improvements in optical sensor technologies and imaging techniques continually enhance imaging performance, and extend resolution into three dimensions. Digital signal processing strategies allow increasingly subtle signals to be extracted and visualized. Imaging methods allow large populations of cells to be examined simultaneously, while resolving individual cells. Differential absorption or fluorescence emission by endogenous biochemicals or exogenous reporters allows characterization of specific aspects of the chemical and physical environment of cells, and produces signals that are highly correlated with neural activation. Fast intrinsic optical signals, which appear to be tightly coupled to the biophysical processes of neural activation, hold great promise for dynamic imaging of function in large populations of neurons. Coupled with multi-channel electrophysiological and Computational modeling techniques, optical imaging enables powerful new understanding of the function of the brain.
C1 Los Alamos Natl Lab, Biophys Grp, Los Alamos, NM 87545 USA.
RP George, JS (reprint author), Los Alamos Natl Lab, Biophys Grp, Mail Stop D454, Los Alamos, NM 87545 USA.
EM jsg@lanl.gov
NR 71
TC 1
Z9 1
U1 1
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-0451-5
PY 2010
BP 1
EP 25
DI 10.1007/978-1-4419-0452-2_1
D2 10.1007/978-1-4419-0452-2
PG 25
WC Biophysics; Neurosciences; Radiology, Nuclear Medicine & Medical Imaging
SC Biophysics; Neurosciences & Neurology; Radiology, Nuclear Medicine &
Medical Imaging
GA BLY77
UT WOS:000271459400001
ER
PT B
AU Brake, MR
Wickert, JA
AF Brake, M. R.
Wickert, J. A.
GP ASME
TI MODAL ANALYSIS OF A GYROSCOPIC SYSTEM WITH NONLINEAR CONSTRAINTS
SO IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 10, PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
ID PIPE CONVEYING FLUID; UP ELASTIC STOPS; MOTION CONSTRAINTS; FORCED
OSCILLATOR; IMPACT RESPONSE; LINEAR-SYSTEMS; TRAVELING BEAM; MOVING
WEBS; VIBRATION; DYNAMICS
AB A method for the modal analysis of continuous gyroscopic systems with nonlinear constraints is developed, which assumes that the nonlinear constraints can be expressed with piecewise-linear force-deflection profiles. Using this assumption, the mode shapes and natural frequencies are found for each state, and a mapping method based on the inner product of the mode shapes is developed to map the displacement of the system between states. To illustrate this method, a model for the vibration of a traveling string in contact with a piecewise-linear constraint is developed as an analog of the interaction between magnetic tape and a guide in data storage systems. Several design parameters of the guide are considered: flange clearance, stiffness, symmetry, and the guide's position. Critical bifurcation thresholds exist, below which the system exhibits no chaotic behavior and is dominated by period one, symmetric behavior, and above which the system contains asymmetric, higher periodic motion with windows of chaotic behavior. These bifurcation thresholds are particularly pronounced for the transport speed, flange clearance, symmetry of the force deflection profile, and guide position.
C1 [Brake, M. R.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Brake, MR (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM mrbrake@sandia.gov; wickert@iastate.edu
NR 33
TC 0
Z9 0
U1 1
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4383-3
PY 2010
BP 1101
EP 1113
PG 13
WC Automation & Control Systems; Engineering, Mechanical
SC Automation & Control Systems; Engineering
GA BPX13
UT WOS:000280200700129
ER
PT B
AU Emery, JM
Bozek, JE
Ingraffea, AR
AF Emery, John M.
Bozek, Jeffrey E.
Ingraffea, Anthony R.
GP ASME
TI TOWARDS TRULY MULTISCALE SIMULATION OF FATIGUE PROCESSES IN METALLIC
STRUCTURES
SO IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 11
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB The fatigue resistance of metallic structures is inherently random due to environmental and boundary conditions, and microstructural geometry, including discontinuities, and material properties. A new methodology for fatigue life prediction is under development to account for these sources of randomness. One essential aspect of the methodology is the ability to perform truly multiscale simulations: simulations that directly link the boundary conditions on the structural length scale to the damage mechanisms of the microstructural length scale.
This presentation compares and contrasts two multiscale methods suitable for fatigue life prediction. The first is a brute force method employing the widely-used multipoint constraint technique which couples a finite element model of the microstructure within the finite element model of the structural component. The second is a more subtle, modified multi-grid method which alternates analyses between the two finite element models while representing the evolving microstructural damage. Examples and comparisons are made for several geometries and preliminary validation is achieved with comparison to experimental tests conducted by the Northrop Grumman Corporation on a wing-panel structural geometry.
C1 [Emery, John M.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Emery, JM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
OI Emery, John /0000-0001-6671-4952
NR 8
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4384-0
PY 2010
BP 47
EP 48
PG 2
WC Engineering, Mechanical
SC Engineering
GA BQY65
UT WOS:000282107300007
ER
PT B
AU Nielson, GN
Phinney, LM
Epp, DS
Wittwer, J
Gupta, V
Resnick, P
Krishnamoorthy, U
AF Nielson, Gregory N.
Phinney, Leslie M.
Epp, David S.
Wittwer, Jonathan
Gupta, Vipin
Resnick, Paul
Krishnamoorthy, Uma
GP ASME
TI WAVELENGTH AND COHERENCE INDEPENDENT METHOD OF OPTICALLY EXCITING
MECHANICAL RESONANCE
SO IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 12, PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB We have developed and demonstrated a technique for optical excitation of mechanical resonance that does not require coherent, monochromatic, or time-varying light. Previous methods for optically exciting mechanical motion in microscale devices required monochromatic, coherent light or time varying light. This technology could allow sunlight (or other ambient light source) to drive a MEMS device. It could also be used to convert sunlight to mechanical energy and subsequently to electrical energy through piezoelectric or capacitive techniques, essentially a micromechanical analog to the photovoltaic cell. We have demonstrated this method of optical excitation of a MEMS cantilever using simple cantilever beam structures fabricated using Sandia National Laboratories' SUMMiT V (TM) process. The bimorph structure was created with polysilicon and aluminum. The minimum power to induce resonance was 3.5 - 4 mW of optical power incident on the cantilever under a vacuum of less than 1 mTorr. Resonance was observed at 45.6 kHz (slightly less than the 48.5 kHz predicted by FEA).
C1 [Nielson, Gregory N.; Phinney, Leslie M.; Epp, David S.; Wittwer, Jonathan; Gupta, Vipin; Resnick, Paul; Krishnamoorthy, Uma] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Nielson, GN (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 8
TC 0
Z9 0
U1 0
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4385-7
PY 2010
BP 535
EP 544
PG 10
WC Engineering, Mechanical; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BPX18
UT WOS:000280203700083
ER
PT B
AU Hopkins, PE
Serrano, JR
Phinney, LM
Kearney, SP
Grasser, TW
Harris, CT
AF Hopkins, Patrick E.
Serrano, Justin R.
Phinney, Leslie M.
Kearney, Sean P.
Grasser, Thomas W.
Harris, C. Thomas
GP ASME
TI DIMENSIONALITY ANALYSIS OF THERMAL TRANSPORT IN MULTILAYER THIN FILM
SYSTEMS
SO IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 12, PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
ID TRANSIENT THERMOREFLECTANCE; HEAT-TRANSPORT; SUPERLATTICES;
CONDUCTIVITY; CONDUCTANCE; FLOW
AB Pump-probe transient thermoreflectance (TTR) techniques are powerful tools for measuring thermophysical properties of thin films, such as thermal conductivity, Lambda, or thermal boundary conductance, G. This paper examines the assumption of one-dimensional heating on Lambda and G determination in nanostructures using a pump-probe transient thermoreflectance technique. The traditionally used one dimensional and radial (3D) models are reviewed. To test the assumptions of the thermal models, experimental data from Al films on bulk substrates (Si and glass) are taken with the TTR technique. This analysis is extended to thin film multilayer structures. Results show that at 11 MHz modulation frequency, thermal transport is indeed one dimensional. Error among the various models arises due to pulse accumulation and not accounting for residual heating.
C1 [Hopkins, Patrick E.; Serrano, Justin R.; Phinney, Leslie M.; Kearney, Sean P.; Grasser, Thomas W.] Sandia Natl Labs, Engn Sci Ctr, Albuquerque, NM 87185 USA.
RP Hopkins, PE (reprint author), Sandia Natl Labs, Engn Sci Ctr, POB 5800, Albuquerque, NM 87185 USA.
EM pehopki@sandia.gov
NR 27
TC 0
Z9 0
U1 0
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4385-7
PY 2010
BP 993
EP 1001
PG 9
WC Engineering, Mechanical; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BPX18
UT WOS:000280203700161
ER
PT B
AU Hendricks, TJ
Krishnan, S
Choi, C
Chang, CH
Paul, B
AF Hendricks, Terry J.
Krishnan, Shankar
Choi, Changho
Chang, Chih-hung
Paul, Brian
GP ASME
TI ENHANCEMENT OF POOL BOILING HEAT TRANSFER USING NANOSTRUCTURED SURFACES
ON ALUMINUM AND COPPER
SO IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 12, PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
ID CONTINUOUS-FLOW MICROREACTOR; TRANSFER MODEL; FLUX; MICROCHANNELS;
EVAPORATION; DEPOSITION; WATER
AB System energy management and cooling for future advanced lasers, radars, and power electronics is gaining importance, resulting in an intense search for technologies and design techniques to dissipate ultra-high heat fluxes, reduce system energy usage, and increase system efficiencies. We report enhanced pool boiling critical heat fluxes (CHF) at reduced wall superheat on nanostructured Al and Cu substrates, which are commonly used in advanced electronics cooling applications. Nanostructured surfaces were realized by using a low temperature nanomaterial deposition process, Microreactor-assisted-nanomaterial-deposition (MAND (TM)). Using this technique we deposited ZnO nano-structures on Al and Cu substrates. We varied a number of parameters such as micro-/nano-structure morphologies, pore sizes, densities, and their inter-connectivity to identify optimal morphologies. These surfaces displayed typical pore sizes of 50-100 nm with pore densities of about 100-200 per mu m(2) and hydrophilic/superhydrophilic characteristics with measured contact angles as low as 0 degrees. We have demonstrated the capability to control MAND (TM) processes to create static contact angle from about 58 degrees to near 0 degrees for ZnO on Al surfaces and 80 degrees to about 40 degrees for zeolite texturing on Si surfaces. Average roughness measured using Atomic Force Microscopy (AFM) was in the range of 200-600 nm.
Pool boiling refers to boiling under natural convection and nucleate boiling conditions, where the heating surface is submerged in a large body of stagnant liquid and the relative motion of the vapor bubble and its surrounding liquid is primarily due to buoyancy effect. We have focused to date on water as test liquid, but have future plans for investigating FIFE 7100. We observed pool boiling CHF of 80-82.5 W/cm(2) for nanostructured ZnO on Al surfaces versus a CHF of 23.2 W/cm(2) on a bare Al surface with a wall superheat reduction of 25-38 degrees C. These new CHF values on ZnO nanostructured surfaces correspond to a boiling heat transfer coefficient as high as similar to 23000 W/m(2)K. This represents an increase of almost 4X in CHF on nano-textured surfaces, which is contrary to conventional boiling heat transfer theory. We will discuss our current data, compare the behavior with conventional boiling theory, and compare with similar recent boiling heat transfer data on other nano-scale surfaces by other researchers. We are currently investigating these surfaces under forced convection conditions in microchannels to assess their flow boiling capabilities.
C1 [Hendricks, Terry J.; Krishnan, Shankar] MicroProd Breakthrough Inst, Battelle Pacific NW Natl Lab, Corvallis, OR 97330 USA.
RP Hendricks, TJ (reprint author), MicroProd Breakthrough Inst, Battelle Pacific NW Natl Lab, Corvallis, OR 97330 USA.
EM terry.hendricks@pnl.gov
NR 21
TC 1
Z9 1
U1 1
U2 8
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4385-7
PY 2010
BP 1025
EP 1033
PG 9
WC Engineering, Mechanical; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BPX18
UT WOS:000280203700165
ER
PT B
AU Lee, SY
AF Lee, Si Y.
GP ASME
TI HEAT TRANSFER ANALYSIS FOR NUCLEAR WASTE SOLIDIFICATION CONTAINER
SO IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 9, PTS A-C
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB The Nuclear Nonproliferation Programs Design Authority is in the design stage of the Waste Solidification Building (WSB) for the treatment and solidification of the radioactive liquid waste streams generated by the Pit Disassembly and Conversion Facility (PDCF) and Mixed Oxide (MOX) Fuel Fabrication Facility (MFFF). The waste streams will be mixed with a cementitious dry mix in a 55-gallon waste container. Savannah River National Laboratory (SRNL) has been performing the testing and evaluations to support technical decisions for the WSB. Engineering Modeling & Simulation Group was requested to evaluate the thermal performance of the 55-gallon drum containing hydration heat source associated with the current baseline cement waste form.
C1 Savannah River Natl Lab, Aiken, SC 29808 USA.
RP Lee, SY (reprint author), Savannah River Natl Lab, Savannah River Site, Aiken, SC 29808 USA.
EM si.lee@srnl.doe.gov
NR 8
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4382-6
PY 2010
BP 483
EP 492
PG 10
WC Engineering, Mechanical
SC Engineering
GA BPX03
UT WOS:000280196300056
ER
PT B
AU Bamberger, JA
Meyer, PA
Enderlin, CW
Fort, JA
Wells, BE
Minette, MJ
Burns, CA
Baer, EBK
Eakin, DE
Elmore, MR
Snyder, SF
AF Bamberger, Judith Ann
Meyer, Perry A.
Enderlin, Carl W.
Fort, James A.
Wells, Beric E.
Minette, Michael J.
Burns, Carolyn A.
Baer, Ellen B. K.
Eakin, David E.
Elmore, Monte R.
Snyder, Sandra F.
GP ASME
TI SCALED EXPERIMENTS EVALUATING PULSE JET MIXING OF SLURRIES
SO IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 9, PTS A-C
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB Pulse jet mixing (PJM) tests with noncohesive solids in Newtonian liquid were conducted at three geometric scales to support the design of mixing systems for the Hanford Waste Treatment and Immobilization Plant. The test data will be used to develop mixing models. The models predict the cloud height (the height to which solids will be lifted by the PJM action) and the critical suspension velocity (the minimum velocity needed to ensure all solids have been lifted from the floor), two parameters measured during the tests. From the cloud height estimate, the concentration of solids near the vessel floor and the minimum velocity predicted to lift solids can be calculated.
The test objective was to observe the influence of vertically downward-directed jets on noncohesive solids in a series of scaled tanks with several bottom shapes. The test tanks and bottom shapes included small- and large-scale tanks with elliptical bottoms, a mid-scale tank with a spherical bottom, and a large-scale tank with a flanged and dished bottom.
During testing, the downward-directed jets were operated in either a steady flow condition or a pulsed (periodic) flow condition. The mobilization of the solids resulting from the jets was evaluated based on: the motion/agitation of the particulate on the tank floor and the elevation the solids reach within the tank; the height the solids material reaches in the tank is referred to as the cloud height (H(C)).
C1 [Bamberger, Judith Ann; Meyer, Perry A.; Enderlin, Carl W.; Fort, James A.; Wells, Beric E.; Minette, Michael J.; Burns, Carolyn A.; Baer, Ellen B. K.; Eakin, David E.; Elmore, Monte R.; Snyder, Sandra F.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Bamberger, JA (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM judith.bamberger@pnl.gov; perry.meyer@pnl.gov
OI Snyder, Sandra/0000-0001-5826-1324
NR 10
TC 1
Z9 1
U1 0
U2 3
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4382-6
PY 2010
BP 1803
EP 1818
PG 16
WC Engineering, Mechanical
SC Engineering
GA BPX03
UT WOS:000280196300207
ER
PT B
AU Brundage, AL
Erickson, KL
Dowding, KJ
AF Brundage, Aaron L.
Erickson, Kenneth L.
Dowding, Kevin J.
GP ASME
TI THERMAL DECOMPOSITION MODELING AND THERMOPHYSICAL PROPERTY MEASUREMENT
OF A HIGHLY CROSSLINKED POLYMER COMPOSITE
SO IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 9, PTS A-C
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
ID POLYURETHANE
AB Thermophysical properties including density, specific heat, and thermal diffusivity of a poly (diallyl phthalate) inert filler composite material were characterized over a wide temperature range from room temperature to 800 degrees C. Over this temperature range, the material decomposition was approximated by a one-step process with first-order kinetics. Thermal kinetics data were obtained by thermal gravimetric analysis with Fourier transform infrared spectroscopy (TGA-FTIR) and thermophysical properties were obtained from differential scanning calorimetry (DSC) and laser flash diffusivity experiments. The response of the material to radiant heating was simulated with a computational heat transfer, multidimensional, finite element code. Additionally, the experimental uncertainty in the measurements was quantified to estimate the uncertainty in the reaction parameters due to heating rate and variability in inert filler-polymer composition in large sample sizes. Hence, the thermal response and the uncertainty were quantified for a complex decomposing material in a practical geometry for technologically important applications.
C1 [Brundage, Aaron L.; Erickson, Kenneth L.; Dowding, Kevin J.] Sandia Natl Labs, Engn Sci Ctr, Albuquerque, NM 87185 USA.
RP Brundage, AL (reprint author), Sandia Natl Labs, Engn Sci Ctr, POB 5800, Albuquerque, NM 87185 USA.
EM albrund@sandia.gov
NR 6
TC 0
Z9 0
U1 0
U2 4
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4382-6
PY 2010
BP 2015
EP 2022
PG 8
WC Engineering, Mechanical
SC Engineering
GA BPX03
UT WOS:000280196300229
ER
PT B
AU Smith, CL
Kelly, DL
Vedros, KG
AF Smith, Curtis L.
Kelly, Dana L.
Vedros, Kurt G.
GP ASME
TI A MODERN APPROACH TO BAYESIAN INFERENCE FOR RISK AND RELIABILITY
ANALYSIS
SO IMECE2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 13
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB Recent years have seen significant advances in the use of risk analysis in a variety of applications. Because risk and reliability models are intended to support these applications, it is critical that inference methods used in these models be robust and technically sound. The inference method described in this paper is that of Bayesian Inference. The inference we describe uses a modern computational approach known as Markov chain Monte Carlo (MCMC). MCMC methods work for simple cases, but more importantly, they work efficiently on very complex cases. Recently, with the advance of computing power and improved analysis algorithms, MCMC is increasingly being used for a variety of Bayesian inference problems. In the paper, an open-source program called OpenBUGS (commonly referred to as WinBUGS) is used to solve the inference problems that are described. The approach that is taken is to provide analysis "building blocks" that can be modified, combined, or used as-is to solve a variety of challenging problems. This paper provides an overview of guidelines for the evaluation of risk and reliability-related data. It is aimed at those familiar with risk and reliability methods and provides a hands-on approach to the investigation and application of a variety of risk and reliability data assessment methods, tools, and techniques..
C1 [Smith, Curtis L.; Kelly, Dana L.; Vedros, Kurt G.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Smith, CL (reprint author), Idaho Natl Lab, Idaho Falls, ID 83415 USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4386-4
PY 2010
BP 323
EP 329
PG 7
WC Computer Science, Interdisciplinary Applications; Engineering,
Mechanical
SC Computer Science; Engineering
GA BQZ40
UT WOS:000282197600039
ER
PT B
AU Brown, AL
Jepsen, RA
AF Brown, Alexander L.
Jepsen, Richard A.
GP ASME
TI FOREST THINNING RESIDUES AS A POTENTIAL FUEL SOURCE
SO IMECE2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 3
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB Northern New Mexico forests are characterized predominantly by small (i.e. around 10 cm diameter), densely populated conifers. Land managers, both private and government, often thin the forests to reduce the risks from wildland fire. Thinned residues typically amount to approximately 20 to 50 tons per acre. With no obvious market use for these small thinning residues, they are presently either discarded on the ground, or burnt as waste. Through a small business assistance initiative, Sandia National Laboratories is helping to identify and promote process improvements. Several productive uses of the residues have been evaluated, and are presented. The concept of a mobile pyrolysis unit is presently being examined in more detail for several pragmatic reasons. It could remove a significant fraction of the mass as a dense liquid that could be shipped to a refinery for conversion to a fossil fuel additive or substitute. Also, it is a process that is sufficiently well self contained that it could be reasonably sized for a mobile system. Present issues with the concept are addressed, including yield, benefit, and cost.
C1 [Brown, Alexander L.; Jepsen, Richard A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Brown, AL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4376-5
PY 2010
BP 35
EP 36
PG 2
WC Thermodynamics; Energy & Fuels; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA BRC36
UT WOS:000282341200005
ER
PT B
AU Brown, AL
Yoon, SS
AF Brown, Alexander L.
Yoon, Sam S.
GP ASME
TI AN ASSESSMENT OF THE IMPORTANCE OF SECONDARY SPRAY ON A WATER SPRINKLER
SCENARIO
SO IMECE2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 3
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
ID NONSPHERICAL PARTICLES; PREDICTION; IMPACT; DRYER; DRAG
AB Recent development efforts have resulted in new models that are capable of predicting water spray interactions with solid surfaces for a wide range of drop sizes and velocities. These models provide a reasonable approximation to single drop impact events, and significantly improve the expected accuracy of the splash. The models are implemented in the Vulcan software, a CFD code for fire modeling. We wanted to understand how important the splash is to a suppression scenario and the implications of common simplifying assumptions. A scenario with several rectangular objects located beneath a water suppression system is examined. This scenario was designed to be representative of an industrial fire and suppression situation. We compare the deposition masses on the surfaces for three cases, one with the recently developed model, another assuming no splash, and another assuming all splashing drops eject an excessive fraction of their mass. The results of the higher fidelity predictions compared with the more commonly employed and simpler assumptions suggest the importance of splashing to the outcome of an industrial water sprinkler fire suppression event.
C1 [Brown, Alexander L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Brown, AL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 23
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4376-5
PY 2010
BP 125
EP 132
PG 8
WC Thermodynamics; Energy & Fuels; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA BRC36
UT WOS:000282341200016
ER
PT B
AU Brown, AL
Jepsen, RA
AF Brown, Alexander L.
Jepsen, Richard A.
GP ASME
TI AN IMPROVED DROP IMPACT MODEL FOR LAGRANGIAN/EULERIAN COUPLED CODES
SO IMECE2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 3
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
ID SOLID-SURFACE; SPRAY IMPACT; SINGLE-DROP
AB Because we want to be able to model fires from high energy impact events as found in transportation accidents, we are interested in accurate representation of secondary impacts and splash, which presumably contribute significantly to the outcome of the event. We are focused on a Lagrangian/Eulerian framework as a simulation method. Historically, drop impact modeling has been driven by spray combustion applications, as reviewed in a paper by Cossali et al. [1]. They note numerous deficiencies, including that regime accuracy for many of the models is narrow. Testing and model development has provided improved sub-models that have allowed us to construct what we believe to be a more accurate and comprehensive model for impacting drops. The details of this model are presented along with a detailed description of the sub-model components. The model is employed to predict a 10 cm diameter, 10 and 20 m/s water drop impact test. This test case serves as an initial verification and validation test of the implemented code.
C1 [Brown, Alexander L.; Jepsen, Richard A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Brown, AL (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 18
TC 0
Z9 0
U1 1
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4376-5
PY 2010
BP 133
EP 141
PG 9
WC Thermodynamics; Energy & Fuels; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA BRC36
UT WOS:000282341200017
ER
PT B
AU Biruduganti, M
Gupta, S
Bihari, B
Sekar, R
AF Biruduganti, Munidhar
Gupta, Sreenath
Bihari, Bipin
Sekar, Raj
GP ASME
TI NO(x) EMISSIONS REDUCTION USING AIR SEPARATION MEMBRANES FOR DIFFERENT
LOADS IN GAS-FIRED ENGINES
SO IMECE2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 3
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB Air Separation Membranes (ASM) could potentially replace Exhaust Gas Recirculation (EGR) technology in engines due to the proven benefits in NOx reduction but without the drawbacks of EGR. Previous investigations of Nitrogen Enriched Air (NEA) combustion using nitrogen bottles showed up to 70% NOx reduction with modest 2% nitrogen enrichment. The investigation in this paper was performed with an ASM capable of delivering at least 3.5% NEA to a single cylinder spark ignited natural gas engine.
Low Temperature Combustion (LTC) is one of the pathways to meet the mandatory ultra low NOx emissions levels set by regulatory agencies. In this study, a comparative assessment is made between natural gas combustion in standard air and 2% NEA for different engine loads. Enrichment beyond this level degraded engine performance in terms of power density, Brake Thermal Efficiency (BTE), and unburned hydrocarbon (UHC) emissions for a given equivalence ratio. The ignition timing was optimized to yield maximum brake torque for standard air and NEA. The parasitic loss associated with the usage of ASM technology is presented. It was observed that with 2% NEA, for a similar fuel quantity, the equivalence ratio (Psi) increases by 0.1 relative to standard air conditions. Analysis showed that lean burn operation along with NEA could pave the pathway for realizing lower NOx emissions with a slight penalty in BTE.
C1 [Biruduganti, Munidhar; Gupta, Sreenath; Bihari, Bipin; Sekar, Raj] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Biruduganti, M (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 11
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4376-5
PY 2010
BP 309
EP 316
PG 8
WC Thermodynamics; Energy & Fuels; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA BRC36
UT WOS:000282341200037
ER
PT B
AU Bamberger, JA
Greenwood, MS
Lawler, BD
Sundaram, SK
Baer, EBK
Hatchell, BK
Hopkins, DF
Kirihara, LJ
Pekour, MS
Sande, S
Yu, XY
Zuljevic, N
AF Bamberger, Judith Ann
Greenwood, Margaret S.
Lawler, Bruce D.
Sundaram, S. K.
Baer, Ellen B. K.
Hatchell, Brian K.
Hopkins, Derek F.
Kirihara, Leslie J.
Pekour, Mikhail S.
Sande, Susan
Yu, Xiao-Ying
Zuljevic, Nino
GP ASME
TI EVALUATING CONCENTRATION PROFILES DURING UNSTEADY MIXING
SO IMECE2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING
CONGRESS AND EXPOSITION, VOL 8
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB Pulse jet mixing tests to suspend noncohesive solids in Newtonian liquid were conducted at three geometric scales. To understand the solids suspension process an ultrasonic concentration probe was used to measure the concentration of solids in the cloud during a pulse at various elevations and radial positions. The data are being analyzed to provide a model for predicting concentration as a function of elevation.
C1 [Bamberger, Judith Ann; Greenwood, Margaret S.; Lawler, Bruce D.; Sundaram, S. K.; Baer, Ellen B. K.; Hatchell, Brian K.; Hopkins, Derek F.; Kirihara, Leslie J.; Pekour, Mikhail S.; Sande, Susan; Yu, Xiao-Ying; Zuljevic, Nino] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Bamberger, JA (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM judith.bamberger@pnl.gov; margaret.greenwood@pnl.gov
RI Yu, Xiao-Ying/L-9385-2013
OI Yu, Xiao-Ying/0000-0002-9861-3109
NR 9
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4381-9
PY 2010
BP 1
EP 10
PG 10
WC Engineering, Environmental; Engineering, Mechanical
SC Engineering
GA BQZ39
UT WOS:000282196500001
ER
PT B
AU Bernardin, JD
Baca, AG
AF Bernardin, John D.
Baca, Allen G.
GP ASME
TI MECHANICAL DESIGN AND VIBRO-ACOUSTIC TESTING OF ULTRATHIN CARBON FOILS
FOR A SPACECRAFT INSTRUMENT
SO IMECE2009, VOL 15: SOUND, VIBRATION AND DESIGN
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB IBEX-Hi is an electrostatic analyzer spacecraft instrument designed to measure the energy and flux distribution of energetic neutral atoms (ENAs) emanating from the interaction zone between the Earth's solar system and the Milky Way galaxy A key element to this electro-optic instrument is an array of fourteen carbon foils that are used to ionize the ENAs The foils are comprised of an ultrathin (50-100 angstrom thick) layer of carbon suspended across the surface of an electroformed Nickel wire screen, which in turn is held taught by a metal frame holder. The electroformed orthogonal screen has square wire elements, 12.7 mu m thick, with a pitch of 131 1 wires/cm. Each foil holder has an open aperture approximately 5 cm by 2 5 cm. Designing and Implementing foil holders with such a large surface area has not been attempted for spaceflight in the past and has proven to be extremely challenging. The delicate carbon foils are subject to fatigue failure from the large acoustic and vibration loads that they will be exposed to during launch of the spacecraft. This paper describes the evolution of the foil holder design from previous space instrument applications to a flight-like IBEX-Hi prototype. Vibro-acoustic qualification tests of the IBEX-Hi prototype instrument and the resulting failure of several foils are summarized. This is followed by a discussion of iterative foil holder design modifications and laser vibrometer modal testing to support future fatigue failure analyses. The results of these activities indicate that there is no strong dependency of the natural frequencies or transmissibilities of the foils on the different foil holder and screen configurations. However, for all foil holder designs, the natural frequencies of the foils were observed to decrease noticeably from exposure to acoustic testing. These test results, when combined with foil holder assembly considerations, suggest that the welded frame and integrated screen designs should be incorporated into the architecture of the IBEX-Hi flight instrument.
C1 [Bernardin, John D.] Los Alamos Natl Lab, Space Sci & Applicat Grp, Los Alamos, NM 87545 USA.
RP Bernardin, JD (reprint author), Los Alamos Natl Lab, Space Sci & Applicat Grp, POB 1663,MS D466, Los Alamos, NM 87545 USA.
NR 4
TC 0
Z9 0
U1 1
U2 3
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4388-8
PY 2010
BP 435
EP 443
PG 9
WC Engineering, Mechanical
SC Engineering
GA BRF62
UT WOS:000282621100054
ER
PT B
AU Bernardin, JD
Flores, EM
AF Bernardin, John D.
Flores, Eugene M.
GP ASME
TI CHARACTERIZATION OF THE TORQUE LIMITS AND CLAMPING FORCE RELATIONSHIPS
FOR SMALL STAINLESS STEEL SCREWS IN TENSILE LOADED JOINTS OF VARIOUS
METALS
SO IMECE2009, VOL 4
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB This study originated during the design of Chem Cam, a Laser Induced Breakdown Spectroscopy (LIBS) and imaging instrument being developed for NASA's Mars Science Lab Rover. The mission needs for miniaturization, reduced weight, high reliability, minimal use of thread locking compounds, and the ability to handle harsh environmental conditions dictated the use of small, high strength screws to be threaded into a variety of metal alloys including Be-S200f, A1-6061-T6, Mg-ZK60A-T5, and Ti-6A1-4V. The lack of a credible fastener torque database for small (#0 through #8) high strength stainless steel screws in various parent materials, led to the development of an experimental program to characterize the following:
a. The screw torque value versus angular rotation (which indicates yielding in the screw or parent material) as a function of screw diameter, screw head configuration, depth of thread engagement, type of parent material, type of surface treatment on parent material, presence of thread locking compound, repeatable threaded hole use, and degree of screw pedigree.
b. The relationship between fastener torque and clamping force for a subset of the above mentioned variables.
The database generated from this study will serve as a design reference for utilizing small stainless steel fasteners and provide trending information for other researchers who may be interested in broadening its range of parameters. This paper reviews the related fastener torque and clamping force information from the literature, describes the experimental screw torque and clamping force monitoring equipment, presents the test matrix and experimental procedures, and discusses the empirical results.
C1 [Bernardin, John D.; Flores, Eugene M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Bernardin, JD (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
NR 6
TC 0
Z9 0
U1 1
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4377-2
PY 2010
BP 451
EP 459
PG 9
WC Engineering, Mechanical
SC Engineering
GA BRH72
UT WOS:000282724900061
ER
PT B
AU Teh, KY
AF Teh, Kwee-Yan
GP ASME
TI THERMODYNAMIC ANALYSIS OF FERMENTATION AND ANAEROBIC GROWTH OF BAKER'S
YEAST
SO IMECE2009, VOL 6
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
ID ACTIVITY-COEFFICIENTS; AQUEOUS-SOLUTIONS; MICROBIAL-GROWTH; BIOMASS
YIELDS; LIVING CELL; RECONSTRUCTION; MICROORGANISMS; CEREVISIAE;
BALANCE; ACID
AB Thermodynamic concepts have been used in the past to predict microbial cell yield under various growth conditions. Cell yield may be the key consideration in some industrial biotechnology applications. It is not the case, however, in the context of biofuel production. In this paper, we examine the thermodynamics of fermentation and concomitant growth of baker's yeast in continuous culture experiments under anaerobic, glucose-limited conditions, with emphasis on the yield and efficiency of ethanol production. We find that anaerobic metabolism of baker's yeast is very efficient; the process destroys less than 7% of the total chemical exergy supplied to the fermentation reactor. However, the exergy of ethanol secreted constitutes less than 60% of the in-flowing exergy, or 75% that of glucose fed to the continuous culture. Effects of varying the specific adenosine 5'-triphosphate (ATP) consumption rate, which is the fundamental parameter that quantifies the energetic requirements for cell growth and maintenance, are also examined.
C1 Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
RP Teh, KY (reprint author), Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
EM kteh@sandia.gov
NR 25
TC 0
Z9 0
U1 0
U2 2
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4379-6
PY 2010
BP 77
EP 83
PG 7
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRH73
UT WOS:000282725100012
ER
PT B
AU Cho, HJ
Luck, R
Chamra, LM
AF Cho, Heejin
Luck, Rogelio
Chamra, Louay M.
GP ASME
TI POWER GENERATION AND HEAT RECOVERY MODEL OF RECIPROCATING INTERNAL
COMBUSTION ENGINES FOR CHP APPLICATIONS
SO IMECE2009, VOL 6
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
DE combined heat and power; internal combustion engine; power generation;
heat recovery
AB This paper presents a power generation and heat recovery model for reciprocating internal combustion engines (ICEs) that can be effectively used in simulations of combined heat and power (CHP) systems. Reciprocating engines are among the most common types of power generation units in CHP systems. In the literature, constant engine efficiencies or empirical efficiency curves are commonly used in the simulations for CHP performance evaluation. These methods do not provide realistic results for the design and component selection processes. The main advantage of this model is that it provides estimates of performance/efficiency maps for both electrical power output and useful thermal output for various capacities of engines without experimental data. The intent of this model is to provide performance/efficiency maps during a preliminary CHP design/simulation process. An example of model calibration to a specific CHP application is presented to demonstrate the capability and benefit of this model. The simulation results are validated with manufacturer's technical data.
C1 [Cho, Heejin] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Cho, HJ (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
NR 12
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4379-6
PY 2010
BP 131
EP 137
PG 7
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRH73
UT WOS:000282725100019
ER
PT B
AU Han, J
Elgowainy, A
Wang, M
AF Han, Jeongwoo
Elgowainy, Amgad
Wang, Michael
GP ASME
TI FUEL-CYCLE ANALYSIS OF FUEL CELLS FOR COMBINED HEAT, HYDROGEN, AND POWER
GENERATION
SO IMECE2009, VOL 6
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB The fuel-cycle energy use and greenhouse gas (GHG) emissions associated with the application of fuel cells to combined heat and power (CHP) generation and combined heat, hydrogen, and power (CHHP) generation are evaluated and compared with the combustion technologies of internal combustion engines and microturbines, as well as with the various technologies associated with hydrogen production and grid-electricity generation in the United States. Two types of fuel cells are considered in this analysis: a phosphoric acid fuel cell (PAFC) capable of following either heat or electric load and a molten carbonate fuel cell (MCFC) that typically follows the electric load. Three types of facilities (hospital, large office building, and warehouse) are examined in two different climatic regions (Chicago and Los Angeles) to span a wide range of electric-to-heat load ratios. Two different approaches for fuel cycle analysis of CHP and CHHP applications are considered in this analysis: a total demand approach and a displacement approach. The total demand approach provides an accurate assessment of the impact of actual demand on total energy use and GHG emissions, while the displacement approach projects the potential for more energy savings and GHG emissions benefits relative to the supply of electricity from the grid generation mix. The fuel cycle results are primarily impacted by the efficiencies of hydrogen production and electric power generation, as well as by the utility factor of the co-produced heat. The energy use and GHG emissions associated with the electric power generation represent the majority of the fuel-cycle's total energy use and emissions for all pathways. More energy and GHG emissions benefits are realized from fuel cell technologies with increased use of available coproduced heat. In general, CHHP systems exhibit more energy and GHG emission benefits than CHP systems for any of the investigated fuel cell technologies.
C1 [Han, Jeongwoo; Elgowainy, Amgad; Wang, Michael] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Han, J (reprint author), Argonne Natl Lab, 9700 S Cass Ave,Bldg 362, Argonne, IL 60439 USA.
EM aelgowainy@anl.gov; jhan@anl.gov; mqwang@anl.gov
NR 13
TC 0
Z9 0
U1 1
U2 5
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4379-6
PY 2010
BP 367
EP 375
PG 9
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRH73
UT WOS:000282725100044
ER
PT B
AU Stoots, C
O'Brien, J
Cable, T
AF Stoots, C.
O'Brien, J.
Cable, T.
GP ASME
TI TEST RESULTS FROM THE IDAHO NATIONAL LABORATORY OF THE NASA BI-SUPPORTED
CELL DESIGN
SO IMECE2009, VOL 6
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
AB The Idaho National Laboratory has been researching the application of solid-oxide fuel cell technology for large-scale hydrogen production. As a result, the Idaho National Laboratory has been testing various cell designs to characterize electrolytic performance. NASA, in conjunction with the University of Toledo, has developed a new cell concept with the goals of reduced weight and high power density. This paper presents results of the INL's testing of this new solid oxide cell design as an electrolyzer. Gas composition, operating voltage, and other parameters were varied during testing. Results to date show the NASA cell to be a promising design for both high power-to-weight fuel cell and electrolyzer applications.
C1 [Stoots, C.; O'Brien, J.] Idaho Natl Lab, Idaho Falls, ID USA.
RP Stoots, C (reprint author), Idaho Natl Lab, Idaho Falls, ID USA.
EM carl.stoots@inl.gov; james.obrien@inl.gov; Thomas.L.Cable@grc.nasa.gov
NR 5
TC 1
Z9 1
U1 0
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4379-6
PY 2010
BP 611
EP 616
PG 6
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRH73
UT WOS:000282725100072
ER
PT B
AU O'Brien, JE
Housley, GK
Milobar, DG
Petigny, N
AF O'Brien, J. E.
Housley, G. K.
Milobar, D. G.
Petigny, Nathalie
GP ASME
TI PERFORMANCE OF SINGLE ELECTRODE-SUPPORTED CELLS OPERATING IN THE
ELECTROLYSIS MODE
SO IMECE2009, VOL 6
LA English
DT Proceedings Paper
CT ASME International Mechanical Engineering Congress and Exposition
CY NOV 13-19, 2009
CL Lake Buena Vista, FL
SP ASME
ID NUCLEAR-ENERGY; HYDROGEN
AB An experimental study is under way to assess the performance of electrode-supported solid-oxide cells operating in the steam electrolysis mode for hydrogen production over a temperature range of 800 to 900 degrees C. Results presented in this paper were obtained from single cells, with an active area of 16 cm(2) per cell. The electrolysis cells are electrode-supported, with yttria-stabilized zirconia (YSZ) electrolytes (similar to 10 mu m thick), nickel-YSZ steam/hydrogen electrodes (similar to 1400 mu m thick), and manganite (LSM) air-side electrodes. The experiments were performed over a range of steam inlet mole fractions (0.1 - 0.6), gas flow rates, and current densities (0 to 0.6 A/cm(2)). Steam consumption rates associated with electrolysis were measured directly using inlet and outlet dewpoint instrumentation. On a molar basis, the steam consumption rate is equal to the hydrogen production rate. Cell performance was evaluated by performing DC potential sweeps at 800, 850, and 900 degrees C. The voltage-current characteristics are presented, along with values of area-specific resistance as a function of current density. Long-term cell performance is also assessed to evaluate cell degradation. Details of the custom single-cell test apparatus developed for these experiments are also presented.
C1 [O'Brien, J. E.; Housley, G. K.] Idaho Natl Lab, Idaho Falls, ID USA.
RP O'Brien, JE (reprint author), Idaho Natl Lab, Idaho Falls, ID USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4379-6
PY 2010
BP 617
EP 625
PG 9
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA BRH73
UT WOS:000282725100073
ER
PT B
AU Braiman, A
Rudakov, F
Thundat, T
AF Braiman, Avital
Rudakov, Fedor
Thundat, Thomas
BE Callaos, N
Chu, HW
Tremante, A
Zinn, CD
TI DNA Separation by Directed Optical Transport
SO IMETI 2010: 3RD INTERNATIONAL MULTI-CONFERENCE ON ENGINEERING AND
TECHNOLOGICAL INNOVATION, VOL I
LA English
DT Proceedings Paper
CT 3rd International Multi-Conference on Engineering and Technological
Innovation
CY JUN 29-JUL 02, 2010
CL Orlando, FL
SP Int Inst Inform & System
C1 [Braiman, Avital] Brown Univ, Div Engn, Providence, RI 02912 USA.
[Rudakov, Fedor] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
[Thundat, Thomas] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA.
RP Braiman, A (reprint author), Brown Univ, Div Engn, Providence, RI 02912 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU INT INST INFORMATICS & SYSTEMICS
PI ORLANDO
PA 14269 LORD BARCLAY DR, ORLANDO, FL 32837 USA
BN 978-1-936338-02-3
PY 2010
BP 5
EP 5
PG 1
WC Engineering, Multidisciplinary; Engineering, Electrical & Electronic
SC Engineering
GA BG7IF
UT WOS:000391342400002
ER
PT B
AU Gofron, KJ
Joachimiak, A
AF Gofron, Kazimierz J.
Joachimiak, Andrzej
BE Baralt, J
Callaos, N
Chu, HW
Ferrer, J
Lesso, W
Savoie, MJ
TI Visualization of X-ray Beam Using CdWO4 Crystal for Macromolecular
Crystallography
SO IMETI 2010: 3RD INTERNATIONAL MULTI-CONFERENCE ON ENGINEERING AND
TECHNOLOGICAL INNOVATION, VOL II (POST-CONFERENCE EDITION)
LA English
DT Proceedings Paper
CT 3rd International Multi-Conference on Engineering and Technological
Innovation
CY JUN 29-JUL 02, 2010
CL Orlando, FL
SP Int Inst Inform & System
DE Synchrotron; X-ray; Scintillator; Fluorescence; Single crystal;
Gd2O2S:Tb; CdWO4; imager; PbWO4; Bi4Ge3O12; Y3Al5O12:Ce (YAG:Ce);
phosphor
ID SCINTILLATORS; FLUORESCENCE
AB In synchrotron diffraction experiments, it is typically assumed that the X-ray beam at the sample position is uniform, stable and has dimensions that are controlled by the focus and slits settings. As might be expected, this process is much more complex. We present here an investigation of the properties of a synchrotron Xray beam at the sample position. The X-ray beam is visualized with a single crystal scintillator that converts X-ray photons into visible light photons, which can be imaged using Structure Biology Center (SBC) on-axis and off-axis microscope optics. The X-ray penetration is dependent on the composition of the scintillator (especially the effective Z), and X-ray energy. Several scintillators have been used to visualize X-ray beams. Here we compare CdWO4, PbWO4, Bi4Ge3O12, Y3Al5O12:Ce (YAG:Ce), and Gd2O2S:Tb (phosphor). We determined that scintillator crystals made of CdWO4 and similar high-Z materials are best suited for the energy range (7-20 keV) and are most suitable for beam visualization for macromolecular crystallography applications. These scintillators show excellent absorption, optical, and mechanical properties.
C1 [Gofron, Kazimierz J.; Joachimiak, Andrzej] Argonne Natl Lab, Struct Biol Ctr, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
RP Joachimiak, A (reprint author), Argonne Natl Lab, Struct Biol Ctr, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM andrzejj@anl.gov
NR 13
TC 0
Z9 0
U1 0
U2 0
PU INT INST INFORMATICS & SYSTEMICS
PI ORLANDO
PA 14269 LORD BARCLAY DR, ORLANDO, FL 32837 USA
BN 978-1-936338-11-5
PY 2010
BP 88
EP 93
PG 6
WC Engineering, Multidisciplinary; Engineering, Electrical & Electronic
SC Engineering
GA BG7IG
UT WOS:000391342900018
ER
PT B
AU Musser, J
Drumright-Clarke, MA
Galvin, J
AF Musser, Jordan
Drumright-Clarke, Mary Ann
Galvin, Janine
BE Baralt, J
Callaos, N
Chu, HW
Ferrer, J
Lesso, W
Savoie, MJ
TI Development of a Discrete Mass Inflow Boundary Condition for MFIX
SO IMETI 2010: 3RD INTERNATIONAL MULTI-CONFERENCE ON ENGINEERING AND
TECHNOLOGICAL INNOVATION, VOL II (POST-CONFERENCE EDITION)
LA English
DT Proceedings Paper
CT 3rd International Multi-Conference on Engineering and Technological
Innovation
CY JUN 29-JUL 02, 2010
CL Orlando, FL
SP Int Inst Inform & System
DE Discrete Element Method (DEM); Discrete Mass Inlet Boundary Condition
(DMIBC)
ID FLUIDIZED-BED
AB MFIX (Multiphase Flow with Interphase eXchanges) is an open source software package developed by the National Energy Technology Laboratory (NETL) used for modeling the chemical reactions, heat transfer, and hydrodynamics of fluid solid systems. Currently, the stable publically available release of MFIX does not include a discrete mass inflow boundary condition (DMIBC) for its discrete element method (DEM) package. Inflow boundary conditions are useful for simulating systems where particles are consumed through chemical reactions and an incoming feed is necessary to sustain the reaction. To implement the DMIBC an inlet staging area is designated outside the computational domain and particles are passed through the wall region associated with the inlet. Forces incurred on entering particles, generated from collisions with particles already in the system, are ignored whereas, particles already in the system respond to contact forces and react accordingly, moving away from the inlet. This approach prevents any unphysical overlap between new and existing particles. It also ensures that particles entering the system will enter the computational domain regardless of opposing forces. Once an incoming particle is fully within the domain, it reacts appropriately to any and all contact force. This approach for a DMIBC has been implemented and is available within the current development version of MFIX.
C1 [Musser, Jordan; Drumright-Clarke, Mary Ann] West Virginia Univ, Morgantown, WV 26506 USA.
[Galvin, Janine] Natl Energy Technol Lab, Albany, OR 97321 USA.
RP Musser, J (reprint author), West Virginia Univ, Morgantown, WV 26506 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU INT INST INFORMATICS & SYSTEMICS
PI ORLANDO
PA 14269 LORD BARCLAY DR, ORLANDO, FL 32837 USA
BN 978-1-936338-11-5
PY 2010
BP 149
EP 153
PG 5
WC Engineering, Multidisciplinary; Engineering, Electrical & Electronic
SC Engineering
GA BG7IG
UT WOS:000391342900030
ER
PT S
AU Rancour, DM
Backues, SK
Bednarek, SY
AF Rancour, David M.
Backues, Steven K.
Bednarek, Sebastian Y.
BE Schwartzbach, SD
Osafune, T
TI Protein Antigen Expression in Escherichia coli for Antibody Production
SO IMMUNOELECTRON MICROSCOPY: METHODS AND PROTOCOLS
SE Methods in Molecular Biology
LA English
DT Article; Book Chapter
DE Escherichia coli; protein; expression; purification;
glutathione-S-transferase; GST; epitope tag; antigen; tobacco etch virus
(TEV) protease
ID ETCH VIRUS PROTEASE; PREDICTION
AB Escherichia coli is a frequently used expression system for the generation of protein encoded by genes from diverse kingdoms and, thus, it is well suited for the production of protein antigens for antibody generation. It is a system of choice for many due to factors such as (1) the commercial availability of a vast array of reagents and materials needed for cloning, expression, and purification and (2) the potential high protein yields that can be acquired in a timely and cost-effective manner. This chapter will focus on (1) the general principles to keep in mind when choosing an antigen to express and (2) the use of a modified pGEX vector system (Rancour et al., J. Biol. Chem. 279:54264-54274, 2004) to use in its expression. Simplified protocols are provided for (1) assessing the expression of your protein, (2) testing whether your protein is or is not expressed as a soluble product, (3) performing bulk purifications of soluble or insoluble E. coli-expressed protein to acquire enough to be used for a complete immunization protocol, and (4) an optional procedure for epitope tag removal from your expressed protein of interest in order to avoid the unnecessary and sometimes unwanted production of antibodies against the fusion protein affinity chromatography tag. These four procedures have been used extensively and successfully in our lab as a basis for the production of recombinant protein and subsequent antibody production.
C1 [Rancour, David M.; Backues, Steven K.; Bednarek, Sebastian Y.] Univ Wisconsin, Dept Biochem, Madison, WI 53705 USA.
[Rancour, David M.; Bednarek, Sebastian Y.] Univ Wisconsin, Great Lakes Bioenergy Res Ctr, Madison, WI 53705 USA.
RP Rancour, DM (reprint author), Univ Wisconsin, Dept Biochem, 420 Henry Mall, Madison, WI 53705 USA.
NR 11
TC 2
Z9 3
U1 0
U2 1
PU HUMANA PRESS INC
PI TOTOWA
PA 999 RIVERVIEW DR, STE 208, TOTOWA, NJ 07512-1165 USA
SN 1064-3745
BN 978-1-60761-782-2
J9 METHODS MOL BIOL
JI Methods Mol. Biol.
PY 2010
VL 657
BP 3
EP 20
DI 10.1007/978-1-60761-783-9_1
D2 10.1007/978-1-60761-783-9
PG 18
WC Biochemical Research Methods; Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA BQA76
UT WOS:000280523600001
PM 20602203
ER
PT S
AU Auciello, O
Shi, B
AF Auciello, Orlando
Shi, Bing
BE Zhou, DD
Greenbaum, E
TI Science and Technology of Bio-Inert Thin Films as Hermetic-Encapsulating
Coatings for Implantable Biomedical Devices: Application to Implantable
Microchip in the Eye for the Artificial Retina
SO IMPLANTABLE NEURAL PROSTHESES 2: TECHNIQUES AND ENGINEERING APPROACHES
SE Biological and Medical Physics Biomedical Engineering
LA English
DT Article; Book Chapter
ID CHEMICAL VAPOR-DEPOSITION; ULTRANANOCRYSTALLINE DIAMOND; GROWTH; PLASMA;
MEMS; GAS; CVD
AB Extensive research has been devoted to the development of neuron prostheses and hybrid bionic systems to establish links between the nervous system and electronic or robotic prostheses with the main focus of restoring motor and sensory functions in blind patients. Artificial retinas, one type of neural prostheses we are currently working on, aim to restore some vision in blind patients caused by retinitis picmentosa or macular degeneration, and in the future to restore vision at the level of face recognition, if not more. Currently there is no hermetic microchip-size coating that provides a reliable, long-term (years) performance as encapsulating coating for the artificial retina Si microchip to be implanted inside the eye. This chapter focuses on the critical topics relevant to the development of a robust, long-term artificial retina device, namely the science and technology of hermetic bio-inert encapsulating coatings to protect a Si microchip implanted in the human eye front being attacked by chemicals existing in the eye's saline environment. The work discussed in this chapter is related to the development of a novel ultrananocrystalline diamond (UNCD) hermetic coating, which exhibited no degradation in rabbit eyes. The material synthesis, characterization, and electrochemical properties of these hermetic coatings are reviewed for application as encapsulating coating for the artificial retinal microchips implantable inside the human eye. Our work has shown that UNCD coatings may provide a reliable hermetic bio-inert coating technology for encapsulalation of Si microchips implantable in the eye specifically and in the human body in general. Electrochemical tests of the UNCD films grown under CH4/Ar/H-2 (1%) plasma exhibit the lowest leakage currents (similar to 7 x 10(-7) A/cm(2)) in a saline solution Simulating the eye environment. This leakage is incompatible with the functionality of the first-generation artificial retinal microchip. However, the growth of UNCD on top of the Si microchip passivated by a silicon nitride layer or the oxide layers is also under investigation in our group as introduced in this chapter. The electrochemically induced leakage will be reduced by at least one to three orders of magnitude to the range of 10(-10) A/cm(2), which is compatible with reliable, long-term implants.
C1 [Auciello, Orlando] Argonne Natl Lab, Div Mat Sci, Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Auciello, O (reprint author), Argonne Natl Lab, Div Mat Sci, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM auciello@anl.gov; shi@anl.gov
NR 40
TC 3
Z9 3
U1 2
U2 6
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 1618-7210
BN 978-0-387-98119-2
J9 BIOL MED PHYS BIOMED
JI Biol. Med. Phys. Biomed. Eng.
PY 2010
BP 63
EP 84
DI 10.1007/978-0-387-98120-8_3
D2 10.1007/978-0-387-98120-8
PG 22
WC Biophysics; Engineering, Biomedical; Medical Informatics; Neurosciences
SC Biophysics; Engineering; Medical Informatics; Neurosciences & Neurology
GA BLY84
UT WOS:000271461200003
ER
PT S
AU Kandagor, V
Cela, CJ
Sanders, CA
Greenbaum, E
Lazzi, G
Zhou, DD
Castro, R
Gaikwad, S
Little, J
AF Kandagor, Vincent
Cela, Carlos J.
Sanders, Charlene A.
Greenbaum, Elias
Lazzi, Gianluca
Zhou, David D.
Castro, Richard
Gaikwad, Sanjay
Little, Jim
BE Zhou, DD
Greenbaum, E
TI In Situ Characterization of Stimulating Microelectrode Arrays: Study of
an Idealized Structure Based on Argus II Retinal implants
SO IMPLANTABLE NEURAL PROSTHESES 2: TECHNIQUES AND ENGINEERING APPROACHES
SE Biological and Medical Physics Biomedical Engineering
LA English
DT Article; Book Chapter
ID ELECTRICAL-STIMULATION; ELECTRODES
AB The development of a retinal prosthesis for artificial sight includes a study of the factors affecting the structural and functional stability of chronically implanted microelectrode arrays. Although neuron depolarization and propagation of electrical signals have been studied for nearly a century, the use of multielectrode stimulation as a proposed therapy to treat blindness is a frontier area of modern ophthalmology research. Mapping and characterizing the topographic information contained in the electric field potentials and understanding how this information is transmitted and interpreted in the visual cortex is still very much a work in progress. In order to characterize the electrical field patterns generated by the device, all ill vitro prototype that mimics several of the physical and chemical parameters of the in vivo visual implant device was fabricated. We carried Out multiple electrical measurements in a model "eye," beginning with a single electrode, followed by a 9-electrode array structure, both idealized components based on the Argus II retinal implants. Correlating the information contained in the topographic features of the electric fields with psychophysical testing in patients may help reduce the time required for patients to convert the electrical patterns into graphic signals.
C1 [Kandagor, Vincent; Sanders, Charlene A.; Greenbaum, Elias] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
[Cela, Carlos J.; Lazzi, Gianluca] N Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27695 USA.
[Zhou, David D.; Castro, Richard; Gaikwad, Sanjay; Little, Jim] Second Sight Med Prod Inc, Sylmar, CA 91342 USA.
RP Greenbaum, E (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
EM kandagorvc@ornl.gov; cjcela@ncsu.edu; sandersce@ornl.gov;
greenbaum@ornl.gov; lazzi@ncsu.edu; dzhou@2-sight.com;
richardc@2-sight.com; sgaikwad@2-sight.com; jiml@2-sight.com;
dzhou@2-sight.com; greenbaum@ornl.gov
NR 19
TC 6
Z9 6
U1 1
U2 5
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 1618-7210
BN 978-0-387-98119-2
J9 BIOL MED PHYS BIOMED
JI Biol. Med. Phys. Biomed. Eng.
PY 2010
BP 139
EP 156
DI 10.1007/978-0-387-98120-8_5
D2 10.1007/978-0-387-98120-8
PG 18
WC Biophysics; Engineering, Biomedical; Medical Informatics; Neurosciences
SC Biophysics; Engineering; Medical Informatics; Neurosciences & Neurology
GA BLY84
UT WOS:000271461200005
ER
PT S
AU Auciello, O
AF Auciello, Orlando
BE Zhou, DD
Greenbaum, E
TI Microchip-Embedded Capacitors for Implantable Neural Stimulators
SO IMPLANTABLE NEURAL PROSTHESES 2: TECHNIQUES AND ENGINEERING APPROACHES
SE Biological and Medical Physics Biomedical Engineering
LA English
DT Article; Book Chapter
ID CHEMICAL-VAPOR-DEPOSITION; K GATE DIELECTRICS; THIN-FILMS; LEAKAGE
CURRENT; OXIDES; SI; LAYER; TIO2; GROWTH
AB Miniaturization of microchips for implantation in the human body (e.g., microchip for the artificial retina to restore sight to people blinded by retina photoreceptors degeneration) requires the integration of high-capacitance (>= 10 mu F) energy-storage capacitors into the microchip. These capacitors would be based on high-dielectric constant layers, preferably made of materials that are bioinert (not affected by human body fluids) and are biocompatible (do not elicit adverse reactions in the human body). This chapter focuses on reviewing the work being done at Argonne National Laboratory (Materials Science Division and Center for Nanoscale Materials) to develop high-capacitance microchip-embedded capacitors based on novel high-K dielectric layers (TiAlOx or TiO2)/Al2O3 superlattices). The microchip-embedded capacitor provides energy storage and electromagnetic signal coupling needed for neural stimulations. Advances in neural prostheses such as artificial retinas and cochlear implants require miniaturization of device size to minimize tissue damage and improve device/tissue interfaces in the human body. Therefore, development of microchip-embedded capacitors is critical to achieve full-implantable biomedical device miniaturization.
C1 [Auciello, Orlando] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
[Auciello, Orlando] Ctr Nanoscale Mat, Argonne, IL 60439 USA.
RP Auciello, O (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM auciello@anl.gov
NR 34
TC 0
Z9 0
U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 1618-7210
BN 978-0-387-98119-2
J9 BIOL MED PHYS BIOMED
JI Biol. Med. Phys. Biomed. Eng.
PY 2010
BP 331
EP 344
DI 10.1007/978-0-387-98120-8_10
D2 10.1007/978-0-387-98120-8
PG 14
WC Biophysics; Engineering, Biomedical; Medical Informatics; Neurosciences
SC Biophysics; Engineering; Medical Informatics; Neurosciences & Neurology
GA BLY84
UT WOS:000271461200010
ER
PT B
AU Narayanan, B
Mills, MJ
Specht, ED
Santella, ML
Babu, SS
AF Narayanan, B.
Mills, M. J.
Specht, E. D.
Santella, M. L.
Babu, S. S.
BE Kannengiesser, T
Babu, SS
Komizo, Y
Ramirez, AJ
TI Characterization of Solid State Phase Transformation in Continuously
Heated and Cooled Ferritic Weld Metal
SO IN-SITU STUDIES WITH PHOTONS, NEUTRONS AND ELECTRONS SCATTERING
LA English
DT Proceedings Paper
CT 1st International Workshop on In-situ Studies with Photons, Neurtrons
and Electron Scattering
CY SEP 01-02, 2009
CL Fed Inst Mat Res & Test, Berlin, GERMANY
SP Osaka Univ, Brazil Synchrotron Light Natl Lab, Helmholtz Ctr Berlin
HO Fed Inst Mat Res & Test
ID IN-SITU OBSERVATIONS; X-RAY-DIFFRACTION; AUSTENITE; STEEL;
SOLIDIFICATION
C1 [Narayanan, B.] Lincoln Elect Co, Cleveland, OH 44117 USA.
[Mills, M. J.; Babu, S. S.] Ohio State Univ, Columbus, OH 43210 USA.
[Specht, E. D.; Santella, M. L.] Oak Ridge Natl Lab, Columbus, OH USA.
RP Narayanan, B (reprint author), Lincoln Elect Co, Cleveland, OH 44117 USA.
EM Badri_Narayanan@lincolnelectric.com
NR 12
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-3-642-14793-7
PY 2010
BP 95
EP 111
DI 10.1007/978-3-642-14794-4_7
PG 17
GA BH0JQ
UT WOS:000395362300007
ER
PT S
AU Farinholt, KM
Taylor, SG
Park, G
Farrar, CR
AF Farinholt, K. M.
Taylor, S. G.
Park, G.
Farrar, C. R.
BE McMickell, MB
Farinholt, KM
TI Wireless Energy Transmission to Supplement Energy Harvesters in Sensor
Network Applications
SO INDUSTRIAL AND COMMERCIAL APPLICATIONS OF SMART STRUCTURES TECHNOLOGIES
2010
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Industrial and Commercial Applications of Smart Structures
Technologies
CY MAR 08-09, 2010
CL San Diego, CA
SP SPIE, Amer Soc Mech Engn
DE Wireless Energy Transmission; Energy Harvesting; Embedded Sensing
AB In this paper we present a method for coupling wireless energy transmission with traditional energy harvesting techniques in order to power sensor nodes for structural health monitoring applications. The goal of this study is to develop a system that can be permanently embedded within civil structures without the need for on-board power sources. Wireless energy transmission is included to supplement energy harvesting techniques that rely on ambient or environmental, energy sources. This approach combines several transducer types that harvest ambient energy with wireless transmission sources, providing a robust solution that does not rely on a single energy source. Experimental results from laboratory and field experiments are presented to address duty cycle limitations of conventional energy harvesting techniques, and the advantages gained by incorporating a wireless energy transmission subsystem. Methods of increasing the efficiency, energy storage medium, target applications and the integrated use of energy harvesting sources with wireless energy transmission will be discussed.
C1 [Farinholt, K. M.; Taylor, S. G.; Park, G.; Farrar, C. R.] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87545 USA.
RP Farinholt, KM (reprint author), Los Alamos Natl Lab, Engn Inst, POB 1663, Los Alamos, NM 87545 USA.
EM farinholt@lanl.com; farinholt@lanl.com
RI Taylor, Stuart/B-1347-2013;
OI Farrar, Charles/0000-0001-6533-6996
NR 20
TC 2
Z9 2
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8060-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7645
AR 764505
DI 10.1117/12.848790
PG 9
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Optics
SC Engineering; Materials Science; Optics
GA BSQ83
UT WOS:000285500400004
ER
PT J
AU Zalk, DM
Kamerzell, R
Paik, S
Kapp, J
Harrington, D
Swuste, P
AF Zalk, David M.
Kamerzell, Ryan
Paik, Samuel
Kapp, Jennifer
Harrington, Diana
Swuste, Paul
TI Risk Level Based Management System: A Control Banding Model for
Occupational Health and Safety Risk Management in a Highly Regulated
Environment
SO INDUSTRIAL HEALTH
LA English
DT Article
DE Control banding; Qualitative risk assessment; Occupational risk
management; Occupational health and safety management system; Risk level
approach; Toolbox; Participatory
ID PERFORMANCE-MEASUREMENT TOOL; FEATURES
AB The Risk Level Based Management System (RLBMS) is an occupational risk management (ORM) model that focuses occupational safety, hygiene, and health (OSHH) resources on the highest risk procedures at work. This article demonstrates the model's simplicity through an implementation within a heavily regulated research institution. The model utilizes control banding strategies with a stratification of four risk levels (RLs) for many commonly performed maintenance and support activities, characterizing risk consistently for comparable tasks. RLBMS creates an auditable tracking of activities, maximizes OSHH professional field time, and standardizes documentation and control commensurate to a given task's RL. Validation of RLs and their exposure control effectiveness is collected in a traditional quantitative collection regime for regulatory auditing. However, qualitative risk assessment methods are also used within this validation process. Participatory approaches are used throughout the RLBMS process. Workers are involved in all phases of building, maintaining, and improving this model. This worker participation also improves the implementation of established controls.
C1 [Zalk, David M.; Kamerzell, Ryan; Paik, Samuel; Kapp, Jennifer] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
[Harrington, Diana] NASA, Ames Res Ctr, Consolidated Safety Serv, Moffett Field, CA 94035 USA.
[Swuste, Paul] Delft Univ Technol, Safety Sci Grp, NL-2600 GA Delft, Netherlands.
RP Zalk, DM (reprint author), Lawrence Livermore Natl Lab, POB 808,L-871, Livermore, CA 94551 USA.
EM zalk1@llnl.gov
FU US Department of Energy by Lawrence Livermore National Laboratory
[DE-AC52-07NA27344, LLNL-JRNL-413441]
FX This work performed, in part, under the auspices of the US Department of
Energy by Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344. LLNL-JRNL-413441.
NR 38
TC 7
Z9 8
U1 0
U2 18
PU NATL INST OCCUPATIONAL SAFETY & HEALTH, JAPAN
PI KAWASAKI KANAGAWA
PA 21-1 NAGAO 6-CHOME TAMA-KU, KAWASAKI KANAGAWA, 214, JAPAN
SN 0019-8366
J9 IND HEALTH
JI Ind. Health
PD JAN
PY 2010
VL 48
IS 1
BP 18
EP 28
PG 11
WC Environmental Sciences; Public, Environmental & Occupational Health;
Toxicology
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Toxicology
GA 550HQ
UT WOS:000274119300004
PM 20160404
ER
PT J
AU Anisimov, AP
Dentovskaya, SV
Panfertsev, EA
Svetoch, TE
Kopylov, PK
Segelke, BW
Zemla, A
Telepnev, MV
Motin, VL
AF Anisimov, Andrey P.
Dentovskaya, Svetlana V.
Panfertsev, Evgeniy A.
Svetoch, Tat'yana E.
Kopylov, Pavel Kh.
Segelke, Brent W.
Zemla, Adam
Telepnev, Maxim V.
Motin, Vladimir L.
TI Amino acid and structural variability of Yersinia pestis LcrV protein
SO INFECTION GENETICS AND EVOLUTION
LA English
DT Article
DE LcrV; Yersinia pestis; Polymorphism; 3D structure; Modeling;
Oligomerization
ID ANTIGEN FUSION PEPTIDE; RECOMBINANT V-ANTIGEN; III SECRETION;
PSEUDOMONAS-AERUGINOSA; ACTIVE IMMUNIZATION; LOW-CA2+ RESPONSE;
PASSIVE-IMMUNITY; REGULATORY ROLE; PLAGUE; VIRULENCE
AB The LcrV protein is a multifunctional virulence factor and protective antigen of the plague bacterium and is generally conserved between the epidemic strains of Yersinia pestis. We investigated the diversity in the LcrV sequences among non-epidemic Y. pestis strains which have a limited virulence in selected animal models and for humans. Sequencing of lcrV genes from 19 Y. pestis strains belonging to different phylogenetic groups (subspecies) showed that the LcrV proteins possess four major variable hotspots at positions 18, 72, 273, and 324-326. These major variations, together with other minor substitutions in amino acid sequences, allowed us to classify the LcrV alleles into five sequence types (A-E). We observed that the strains of different Y. pestis "subspecies" can have the same type of LcrV, including that conserved in epidemic strains, and different types of LcrV can exist within the same natural plague focus. Therefore, the phenomenon of "selective virulence" characteristic of the strains of the microtus biovar is unlikely to be the result of polymorphism of the V antigen. The LcrV polymorphisms were structurally analyzed by comparing the modeled structures of LcrV from all available strains. All changes except one occurred either in flexible regions or on the surface of the protein, but local chemical properties (i.e. those of a hydrophobic, hydrophilic, amphipathic, or charged nature) were conserved across all of the strains. Polymorphisms in flexible and surface regions are likely subject to less selective pressure, and have a limited impact on the structure. In contrast, the substitution of tryptophan at position 113 with either glutamic acid or glycine likely has a serious influence on the regional structure of the protein, and these mutations might have an effect on the function of LcrV. The polymorphisms at positions 18, 72 and 273 were accountable for differences in the oligomerization of LcrV. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Anisimov, Andrey P.; Dentovskaya, Svetlana V.; Panfertsev, Evgeniy A.; Svetoch, Tat'yana E.; Kopylov, Pavel Kh.] State Res Ctr Appl Microbiol & Biotechnol, Obolensk 142279, Moscow Region, Russia.
[Segelke, Brent W.] Lawrence Livermore Natl Lab, BACE, Chem Directorate, Livermore, CA 94550 USA.
[Segelke, Brent W.] Lawrence Livermore Natl Lab, BACE, Mat Directorate, Livermore, CA 94550 USA.
[Segelke, Brent W.] Lawrence Livermore Natl Lab, BACE, Life Sci Directorate, Livermore, CA 94550 USA.
[Telepnev, Maxim V.; Motin, Vladimir L.] Univ Texas Med Branch, Dept Microbiol & Immunol, Galveston, TX 77555 USA.
[Motin, Vladimir L.] Univ Texas Med Branch, Dept Pathol, Galveston, TX 77555 USA.
RP Anisimov, AP (reprint author), State Res Ctr Appl Microbiol & Biotechnol, Obolensk 142279, Moscow Region, Russia.
EM anisimov@obolensk.org; vlmotin@utmb.edu
RI Motin, Vladimir/O-1535-2013; Anisimov, Andrey/D-2217-2009; Anisimov,
Andrey/H-5257-2012; Dentovskaya, Svetlana/F-4623-2017
OI Anisimov, Andrey/0000-0002-5499-7999; Anisimov,
Andrey/0000-0002-5499-7999; Dentovskaya, Svetlana/0000-0002-1996-8949
FU International Science and Technology Center [2426]; Russian Foundation
for Basic Research [08-04-00405-a]; Sealy Center for Vaccine Development
of the University of Texas Medical Branch at Galveston; NIH/NIAID [1R43
AI71634-01A2]; U.S. Department of Energy [W-7405-Eng-48]
FX This work was supported by the International Science and Technology
Center (project #2426), Russian Foundation for Basic Research (project
08-04-00405-a), Sealy Center for Vaccine Development of the University
of Texas Medical Branch at Galveston, and the NIH/NIAID grant 1R43
AI71634-01A2. This work was implemented under the auspices of the U.S.
Department of Energy under contract no. W-7405-Eng-48.
NR 82
TC 17
Z9 19
U1 2
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1567-1348
J9 INFECT GENET EVOL
JI Infect. Genet. Evol.
PD JAN
PY 2010
VL 10
IS 1
BP 137
EP 145
DI 10.1016/j.meegid.2009.10.003
PG 9
WC Infectious Diseases
SC Infectious Diseases
GA 556NX
UT WOS:000274599000016
PM 19835996
ER
PT S
AU Osborn, TD
AF Osborn, Thor D.
BE Holst, GC
Krapels, KA
TI Readout IC requirement trends based on a simplified parametric seeker
model
SO INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Infrared Systems - Design, Analysis, Modeling, and Testing
XXI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE FPA; ROIC; ADC; MWIR
AB Modern space based optical sensors place substantial demands on the focal plane array readout integrated circuit. Active pixel readout designs offer direct access to individual pixel data but require analog to digital conversion at or near each pixel. Thus, circuit designers must create precise, fundamentally analog circuitry within tightly constrained areas on the integrated circuit. Rapidly changing phenomena necessitate tradeoffs between sampling and conversion speed, data precision, and heat generation adjacent the detector array, especially of concern for thermally sensitive space grade infrared detectors. A simplified parametric model is presented that illustrates seeker system performance and analog to digital conversion requirements trends in the visible through mid-wave infrared, for varying sample rate. Notional limiting-case Earth optical backgrounds were generated using MODTRAN4 with a range of cloud extremes and approximate practical albedo limits for typical surface features from a composite of the Mosart and Aster spectral albedo databases. The dynamic range requirements imposed by these background spectra are discussed in the context of optical band selection and readout design impacts.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Osborn, TD (reprint author), Sandia Natl Labs, POB 5800,MS 0892, Albuquerque, NM 87185 USA.
EM tdosbor@sandia.gov
NR 6
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8126-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7662
AR 76620G
DI 10.1117/12.849595
PG 11
WC Optics; Physics, Applied
SC Optics; Physics
GA BSO14
UT WOS:000285083100013
ER
PT B
AU ReVelle, DO
AF ReVelle, D. O.
BE LePichon, A
Blanc, E
Hauchecorne, A
TI Acoustic-Gravity Waves from Impulsive Sources in the Atmosphere
SO INFRASOUND MONITORING FOR ATMOSPHERIC STUDIES
LA English
DT Article; Book Chapter
ID INFRASONIC OBSERVATIONS; SHOCK WAVES; EFFICIENCY; ENTRY; MODEL
C1 Los Alamos Natl Lab, Div Earth & Environm Sci, Geophys Grp, Los Alamos, NM 87545 USA.
RP ReVelle, DO (reprint author), Los Alamos Natl Lab, Div Earth & Environm Sci, Geophys Grp, Los Alamos, NM 87545 USA.
EM revelle@lanl.gov
NR 51
TC 6
Z9 6
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-1-4020-9507-8
PY 2010
BP 305
EP 359
DI 10.1007/978-1-4020-9508-5_11
PG 55
WC Geochemistry & Geophysics; Engineering, Environmental; Environmental
Sciences; Geosciences, Multidisciplinary
SC Geochemistry & Geophysics; Engineering; Environmental Sciences &
Ecology; Geology
GA BNS70
UT WOS:000275431400011
ER
PT B
AU Mutschlecner, JP
Whitaker, RW
AF Mutschlecner, J. P.
Whitaker, Rodney W.
BE LePichon, A
Blanc, E
Hauchecorne, A
TI Some Atmospheric Effects on Infrasound Signal Amplitudes
SO INFRASOUND MONITORING FOR ATMOSPHERIC STUDIES
LA English
DT Article; Book Chapter
C1 [Whitaker, Rodney W.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA.
[Mutschlecner, J. P.] COMPA Ind, Los Alamos, NM 87544 USA.
RP Whitaker, RW (reprint author), Los Alamos Natl Lab, EES-17 MS J577, Los Alamos, NM 87544 USA.
EM rww@larl.gov
NR 29
TC 9
Z9 9
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-1-4020-9507-8
PY 2010
BP 455
EP 474
DI 10.1007/978-1-4020-9508-5_14
PG 20
WC Geochemistry & Geophysics; Engineering, Environmental; Environmental
Sciences; Geosciences, Multidisciplinary
SC Geochemistry & Geophysics; Engineering; Environmental Sciences &
Ecology; Geology
GA BNS70
UT WOS:000275431400014
ER
PT S
AU Brisse, A
Schefold, J
Stoots, C
O'Brien, J
AF Brisse, A.
Schefold, J.
Stoots, C.
O'Brien, J.
BE SteinbergerWilckens, R
Lehnert, W
TI Electrolysis Using Fuel Cell Technology
SO INNOVATIONS IN FUEL CELL TECHNOLOGIES
SE RSC Energy and Environment Series
LA English
DT Article; Book Chapter
ID HIGH-TEMPERATURE ELECTROLYSIS; SOLID OXIDE CELLS; WATER ELECTROLYSIS;
HYDROGEN-PRODUCTION; PERFORMANCE; EVOLUTION; OXYGEN; ENERGY; VAPOR
C1 [Brisse, A.; Schefold, J.] European Inst Energy Res, D-76131 Karlsruhe, Germany.
[Stoots, C.; O'Brien, J.] Idaho Natl Lab, Idaho Falls, ID 83415 USA.
RP Brisse, A (reprint author), European Inst Energy Res, Emmy Noether Str 11, D-76131 Karlsruhe, Germany.
NR 45
TC 5
Z9 5
U1 0
U2 1
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, CAMBRIDGE CB4 4WF, CAMBS, ENGLAND
SN 2044-0774
BN 978-1-84973-033-4
J9 RSC ENERGY ENVIRON S
PY 2010
IS 2
BP 267
EP 286
D2 10.1039/9781849732109
PG 20
WC Electrochemistry; Energy & Fuels; Environmental Sciences
SC Electrochemistry; Energy & Fuels; Environmental Sciences & Ecology
GA BSV80
UT WOS:000285940500009
ER
PT S
AU Kwong, KS
Bennett, J
Krabbe, R
Petty, A
Thomas, H
AF Kwong, Kyei Sing
Bennett, James
Krabbe, Rick
Petty, Art
Thomas, Hugh
BE Munir, ZA
Ohji, T
Hotta, Y
TI MODELING DUAL AND MgO SATURATED EAF SLAG CHEMISTRY
SO INNOVATIVE PROCESSING AND MANUFACTURING OF ADVANCED CERAMICS AND
COMPOSITES
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT 8th Pacific Rim Conference on Ceramic and Glass Technology
CY MAY 31-JUN 05, 2009
CL Vancouver, CANADA
SP Amer Ceram Soc
AB Foamy slag practice has been widely adopted by the EAF industry because it shields the electrical arcs, increases yield, lowers noise levels, prevents radiant energy loss, eliminates arc flares, saves overall energy and extends refractory service life. Foamy slag requires the control of slag chemistry and viscosity to sustain gas bubbles during processing. This is accomplished through the formation of magnesium wustite particles in the slag at the operating temperature. A thermodynamic program, Factsage(TM), was utilized to compute the dual (saturated with CaO and MgO containing phases) and MgO saturated EAF slag chemistry for a 5 component system of MgO CaO FeO SiO2 Al2O3, at steelmaking oxygen partial pressures, temperatures, and slag basicity. The computational results will be analyzed to explore oxygen pressures, temperatures, slag basicity, and Al2O3 effects for creating a model to predict the dual and MgO saturated slag chemistry.
C1 [Kwong, Kyei Sing; Bennett, James; Krabbe, Rick; Petty, Art; Thomas, Hugh] US DOE, Natl Energy Technol Lab, Albany, OR 97321 USA.
RP Kwong, KS (reprint author), US DOE, Natl Energy Technol Lab, Albany, OR 97321 USA.
NR 5
TC 0
Z9 0
U1 2
U2 3
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-0-470-87646-6
J9 CERAM TRANS
PY 2010
VL 212
BP 167
EP 177
PG 11
WC Materials Science, Ceramics
SC Materials Science
GA BTL76
UT WOS:000287224400016
ER
PT J
AU Corbett, JD
AF Corbett, John D.
TI Exploratory Synthesis: The Fascinating and Diverse Chemistry of Polar
Intermetallic Phases
SO INORGANIC CHEMISTRY
LA English
DT Article
ID ICOSAHEDRAL QUASI-CRYSTAL; EARLY TRANSITION-METALS; BUILDING-BLOCKS;
SOLID-STATE; ELECTRONIC-STRUCTURES; GOLD SUBSTITUTION; CLUSTER
COMPOUNDS; RICH; APPROXIMANT; AU
AB Exploratory synthetic adventures regarding the inorganic chemistry of polar intermetallic phases have proven to be especially productive of novel compositions, new and unprecedented structures, and unusual bonding regimes. Reactions of diverse elements with widely different electronegativities allow the definition of two opposed classes of products: polycationic or polyanionic clusters or networks of metals paired with the corresponding monatomic anions or cations. These can be usefully viewed as intermetallic "salts", redox products of simpler neutral intermetallic systems but with widely different factors governing their stabilities. Thus, combinations of rare-earth metals alone or with late transition metals form a novel variety of polymetal network structures with relatively isolated telluride (or halide) spacer anions, Similarly, extensions of traditional Zintl phases of the alkali or alkaline-earth metals from the later p elements to the earlier triels, Ga-Tl especially, yield many new and elegant polyanionic structures. The substitution or addition of still earlier p or late d metal components produces still electron-poorer and more condensed polar intermetallic phases with increasingly delocalized bonding, higher coordination numbers, and more unusual structures and bonding. These discoveries have also led to new approaches: electronic tuning via band calculations to generate new families of quasicrystals and their crystalline approximants with their characteristic structural regimes and regularities. Gold as a substituent generates particularly novel bonding in arrays of mixed metals or polygold anionic networks.
C1 [Corbett, John D.] Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
[Corbett, John D.] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Corbett, JD (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
EM jcorbett@iastate.edu
FU U.S. Department of Energy; National Science Foundation (DMR)
[DMR-0853732]
FX The real credits for all of these accomplishments belong to many clever,
curious, imaginative, and persistent co-workers; the names of many of
the more recent collaborators appear in the references. The cover design
was created by one of these, Professor Ling Chen at Fujian Institute
(FJIRSM), Fuzhou, China. Oil the financial side, steadfast support from
the U.S. Department of Energy (and its predecessor agencies) through the
Ames Laboratory has made all of the Zintl phase and triel polyanion
Studies possible. In parallel, the National Science Foundation (DMR) has
supported the polycation and AC/QC investigations over the last 25
years, presently by means of Grant DMR-0853732.
NR 71
TC 66
Z9 67
U1 3
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JAN 1
PY 2010
VL 49
IS 1
BP 13
EP 28
DI 10.1021/ic901305g
PG 16
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 534ZI
UT WOS:000272935800005
PM 19968295
ER
PT J
AU Nayak, S
Roubeau, O
Teat, SJ
Beavers, CM
Gamez, P
Reedijk, J
AF Nayak, Sanjit
Roubeau, Olivier
Teat, Simon J.
Beavers, Christine M.
Gamez, Patrick
Reedijk, Jan
TI An S-Shaped [Fe4Dy2] Complex Exhibiting Slow Relaxation of
Magnetization: Synthesis, Magnetism, and Crystal Structures of a Family
of [Fe(4)Ln(2)][Ln] Coordination Compounds (Ln = Nd, Gd, Tb, Dy, and Ho)
SO INORGANIC CHEMISTRY
LA English
DT Article
ID SINGLE-MOLECULE MAGNETS; CLUSTERS; ANISOTROPY; SUSCEPTIBILITY;
CHEMISTRY; IRON(III); DYNAMICS
AB A series of heterobimetallic 3d-4f cluster coordination compounds has been synthesized using a Schiff-base ligand (H3L), a trinuclear iron(III) precursor complex and lanthanide nitrates as reactants. Five new isostructural complexes were prepared with the ligand in 4 different forms, i.e., neutral and 3 different levels of deprotonation, and with the general formula (Fe(4)(III)Ln(2)(III)(H2L)(2)(HL)(2)L-2(CH3OH)(2)((CH3)(3)CCOO)(2)(NO3)(2)][Ln(III)(NO3)(4)(H3L)(CH3OH)]center dot NO3 center dot H2O, where Ln is Nd, Gd, Tb, Dy, and Ho for compounds 1, 2, 3, 4, and 5, respectively. The single-crystal structures of two complexes were determined by X-ray diffraction, consisting of an original [Fe(4)(III)Ln(2)(III)](2+) moiety with a linear S-shaped [Ln-Fe-4-Ln] core and an isolated Ln(III) ion coordinated by nitrate anions and the neutral Schiff-base ligand. The isostructural nature of all five coordination compounds is further illustrated both by XRPD and IR analysis. Magnetic properties of all five compounds have been studied and are discussed in light of magnetostructural considerations. Among these five compounds, the Dy (4) cluster shows frequency-dependent ac-susceptibility indicative of probable single-molecule magnet behavior.
C1 [Nayak, Sanjit; Gamez, Patrick; Reedijk, Jan] Leiden Univ, Leiden Inst Chem, NL-2300 RA Leiden, Netherlands.
[Teat, Simon J.; Beavers, Christine M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
[Roubeau, Olivier] CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain.
[Roubeau, Olivier] Univ Zaragoza, E-50009 Zaragoza, Spain.
RP Reedijk, J (reprint author), Leiden Univ, Leiden Inst Chem, POB 9502, NL-2300 RA Leiden, Netherlands.
EM reedijk@chem.leidenuniv.nl
RI Beavers, Christine/C-3539-2009; Nayak, Sanjit/C-4591-2011; Roubeau,
Olivier/A-6839-2010; Reedijk, Jan/F-1992-2010; Gamez,
Patrick/B-3610-2012
OI Beavers, Christine/0000-0001-8653-5513; Nayak,
Sanjit/0000-0002-0342-9860; Roubeau, Olivier/0000-0003-2095-5843;
Reedijk, Jan/0000-0002-6739-8514; Gamez, Patrick/0000-0003-2602-9525
FU FP6 Network of Excellence [515767]; Office of Science, Office of Basic
Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]
FX Financial support and help from the FP6 Network of Excellence "Magmanet"
is kindly acknowledged, (contract number 515767). The Advanced Light
Source is supported by the Director, Office of Science, Office of Basic
Energy Sciences, of the U.S. Department of Energy under Contract
DE-AC02-05CH11231.
NR 37
TC 44
Z9 44
U1 1
U2 24
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JAN 1
PY 2010
VL 49
IS 1
BP 216
EP 221
DI 10.1021/ic901781a
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 534ZI
UT WOS:000272935800024
PM 19954164
ER
PT J
AU Harrington, R
Hausner, DB
Bhandari, N
Strongin, DR
Chapman, KW
Chupas, PJ
Middlemiss, DS
Grey, CP
Parise, JB
AF Harrington, Richard
Hausner, Douglas B.
Bhandari, Narayan
Strongin, Daniel R.
Chapman, Karena W.
Chupas, Peter J.
Middlemiss, Derek S.
Grey, Clare P.
Parise, John B.
TI Investigation of Surface Structures by Powder Diffraction: A
Differential Pair Distribution Function Study on Arsenate Sorption on
Ferrihydrite
SO INORGANIC CHEMISTRY
LA English
DT Article
ID IRON-OXIDE MINERALS; X-RAY-DIFFRACTION; HIGH-RESOLUTION; PRUSSIAN BLUE;
ADSORPTION; CHEMISTRY; NANOPARTICLES; SPECTROSCOPY; MECHANISM; ARSENITE
AB Differential pair distribution function (d-PDF) analysis of high energy powder X-ray diffraction data was carried out on 2-line ferrihydrite nanoparticles with arsenate oxyanions adsorbed on the surface to investigate the binding mechanism. In this analysis, a PDF of ferrihydrite is subtracted from a PDF of ferrihydrite with arsenate sorbed on the surface, leaving only correlations from within the surface layer and between the surface and the particle. As-O and As-Fe correlations were observed at 1.68 and 3.29 angstrom, respectively, in good agreement with previously published EXAFS data, confirming a bidentate binuclear binding mechanism. Further peaks are observed in the d-PDF which are not present in EXAFS, corresponding to correlations between As and O in the particle and As-2nd Fe.
C1 [Harrington, Richard; Parise, John B.] SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA.
[Hausner, Douglas B.; Bhandari, Narayan; Strongin, Daniel R.] Temple Univ, Dept Chem, Philadelphia, PA 19122 USA.
[Chapman, Karena W.; Chupas, Peter J.] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60439 USA.
[Harrington, Richard; Middlemiss, Derek S.; Grey, Clare P.; Parise, John B.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.
RP Harrington, R (reprint author), SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA.
EM richard.harrington@stonybrook.edu
RI Chapman, Karena/G-5424-2012; Bhandari, Narayan/I-8377-2015
FU National Science Foundation (NSF) through Collaborative Research in
Chemistry (CRC) [CHE0714183]; NSF [CHE0714121]; U. S. Department of
Energy, Office of Science, Office of Basic Energy Sciences
[DE-AC02-06CH11357]
FX We thank David Sherman for information regarding the clusters used in
his paper with Simon Randall in 2003. We acknowledge Financial support
provided by the National Science Foundation (NSF) through Collaborative
Research in Chemistry (CRC), Grant CHE0714183. D.R.S. acknowledges
Support from the NSF (CHE0714121). Work done at Argonne and use of the
Advanced Photon Source Was Supported by the U. S. Department of Energy,
Office of Science, Office of Basic Energy Sciences, under Contract No,
DE-AC02-06CH11357.
NR 45
TC 28
Z9 29
U1 2
U2 40
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD JAN 1
PY 2010
VL 49
IS 1
BP 325
EP 330
DI 10.1021/ic9022695
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 534ZI
UT WOS:000272935800037
PM 19968252
ER
PT S
AU Dubois, DL
Dubois, MR
Ringenberg, MR
Rauchfuss, TB
AF Dubois, Daniel L.
Dubois, Mary Rakowski
Ringenberg, Mark R.
Rauchfuss, Thomas B.
BE Rauchfuss, TB
TI NICKEL COMPLEXES OF BIS(DIETHYLPHOSPHINOMETHYL)METHYLAMINE
SO INORGANIC SYNTHESES, VOL 35
SE Inorganic Syntheses
LA English
DT Article; Book Chapter
ID HYDRIDE DONOR ABILITIES; DIHYDROGEN COMPLEXES; IRON(II) COMPLEXES;
PROTON-TRANSFER; HYDROGEN; LIGANDS; NI; CATALYSTS; BASES; SPHERE
C1 [Dubois, Daniel L.; Dubois, Mary Rakowski] Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
[Ringenberg, Mark R.; Rauchfuss, Thomas B.] Univ Illinois, Dept Chem, Urbana, IL 61801 USA.
RP Dubois, DL (reprint author), Pacific NW Natl Lab, Div Chem & Mat Sci, Richland, WA 99352 USA.
NR 23
TC 0
Z9 0
U1 2
U2 2
PU JOHN WILEY & SONS INC
PI NEW YORK
PA 605 3RD AVE, NEW YORK, NY 10016 USA
SN 0073-8077
BN 978-0-470-65156-8
J9 INORG SYN
PY 2010
VL 35
BP 132
EP 137
D2 10.1002/9780470651568
PG 6
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA BSE30
UT WOS:000284266700033
ER
PT B
AU Greitzer, FL
Frincke, DA
AF Greitzer, Frank L.
Frincke, Deborah A.
BE Probst, CW
Hunker, J
Gollmann, D
Bishop, M
TI Combining Traditional Cyber Security Audit Data with Psychosocial Data:
Towards Predictive Modeling for Insider Threat Mitigation
SO INSIDER THREATS IN CYBER SECURITY
SE Advances in Information Security
LA English
DT Article; Book Chapter
ID WORKPLACE
AB The purpose of this chapter is to motivate the combination of traditional cyber security audit data with psychosocial data, to support a move from an insider threat detection stance to one that enables prediction of potential insider presence. Two distinctive aspects of the approach are the objective of predicting or anticipating potential risks and the use of organizational data in addition to cyber data to support the analysis. The chapter describes the challenges of this endeavor and reports on progress in defining a usable set of predictive indicators, developing a framework for integrating the analysis of organizational and cyber security data to yield predictions about possible insider exploits, and developing the knowledge base and reasoning capability of the system. We also outline the types of errors that one expects in a predictive system versus a detection system and discuss how those errors can affect the usefulness of the results.
C1 [Greitzer, Frank L.; Frincke, Deborah A.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Greitzer, FL (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM frank.greitzer@pnl.gov; deborah.frincke@pnl.gov
NR 40
TC 11
Z9 12
U1 3
U2 5
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-7132-6
J9 ADV INFORM SECUR
PY 2010
VL 49
BP 85
EP 113
DI 10.1007/978-1-4419-7133-3_5
D2 10.1007/978-1-4419-7133-3
PG 29
WC Computer Science, Information Systems; Computer Science, Theory &
Methods
SC Computer Science
GA BQJ25
UT WOS:000281159100005
ER
PT B
AU Bishop, M
Engle, S
Frincke, DA
Gates, C
Greitzer, FL
Peisert, S
Whalen, S
AF Bishop, Matt
Engle, Sophie
Frincke, Deborah A.
Gates, Carrie
Greitzer, Frank L.
Peisert, Sean
Whalen, Sean
BE Probst, CW
Hunker, J
Gollmann, D
Bishop, M
TI A Risk Management Approach to the "Insider Threat"
SO INSIDER THREATS IN CYBER SECURITY
SE Advances in Information Security
LA English
DT Article; Book Chapter
AB Recent surveys indicate that the financial impact and operating losses due to insider intrusions are increasing. But these studies often disagree on what constitutes an "insider;" indeed, many define it only implicitly. In theory, appropriate selection of, and enforcement of, properly specified security policies should prevent legitimate users from abusing their access to computer systems, information, and other resources. However, even if policies could be expressed precisely, the natural mapping between the natural language expression of a security policy, and the expression of that policy in a form that can be implemented on a computer system or network, creates gaps in enforcement. This paper defines "insider" precisely, in terms of these gaps, and explores an access-based model for analyzing threats that include those usually termed "insider threats." This model enables an organization to order its resources based on the business value for that resource and of the information it contains. By identifying those users with access to high-value resources, we obtain an ordered list of users who can cause the greatest amount of damage. Concurrently with this, we examine psychological indicators in order to determine which users are at the greatest risk of acting inappropriately. We conclude by examining how to merge this model with one of forensic logging and auditing.
C1 [Bishop, Matt; Engle, Sophie; Peisert, Sean; Whalen, Sean] Univ Calif Davis, Dept Comp Sci, Davis, CA 95616 USA.
[Frincke, Deborah A.; Greitzer, Frank L.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Bishop, M (reprint author), Univ Calif Davis, Dept Comp Sci, Davis, CA 95616 USA.
EM bishop@cs.ucdavis.edu; sjengle@ucdavis.edu; deborah.frincke@pnl.gov;
carrie.gates@ca.com; frank.greitzer@pnl.gov; peisert@cs.ucdavis.edu;
shwhalen@ucdavis.edu; bishop@cs.ucdavis.edu
NR 39
TC 2
Z9 2
U1 0
U2 1
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
BN 978-1-4419-7132-6
J9 ADV INFORM SECUR
PY 2010
VL 49
BP 115
EP 137
DI 10.1007/978-1-4419-7133-3_6
D2 10.1007/978-1-4419-7133-3
PG 23
WC Computer Science, Information Systems; Computer Science, Theory &
Methods
SC Computer Science
GA BQJ25
UT WOS:000281159100006
ER
PT B
AU Vasconcelos, PB
Marques, O
Roman, JE
AF Vasconcelos, P. B.
Marques, O.
Roman, J. E.
BE Constanda, C
Perez, ME
TI High-Performance Computing for Spectral Approximations
SO INTEGRAL METHODS IN SCIENCE AND ENGINEERING VOL 2: COMPUTATIONAL METHODS
LA English
DT Proceedings Paper
CT 10th International Conference on Integral Methods in Science and
Engineering
CY JUL 07-10, 2008
CL Univ Cantabria, Santander, SPAIN
SP Univ Cantabria, Ministerio Ciencia Innovac, Soc Reg Cantabra IDi, iMath Consolider, Caja Burgos, Consejeria Cultura, Turismo Deporte Gobierno Cantabria, Ayuntamiento Santander, Soc Espanola Matematica Aplicada, MICINN
HO Univ Cantabria
ID EIGENVALUE
C1 [Vasconcelos, P. B.] Univ Porto, Oporto, Portugal.
[Marques, O.] Lawrence Berkeley Natl Lab, Berkeley, CA USA.
[Roman, J. E.] Univ Politecn Valencia, Valencia, Spain.
RP Vasconcelos, PB (reprint author), Univ Porto, Oporto, Portugal.
EM pjv@fep.up.pt; oamarques@lbl.gov; jroman@dsic.upv.es
RI Vasconcelos, Paulo/A-8772-2008;
OI Vasconcelos, Paulo/0000-0002-7132-880X; Roman, Jose
E./0000-0003-1144-6772
NR 15
TC 1
Z9 1
U1 0
U2 1
PU BIRKHAUSER BOSTON
PI CAMBRIDGE
PA 675 MASSACHUSETTS AVE, CAMBRIDGE, MA 02139-2333 USA
BN 978-0-8176-4896-1
PY 2010
BP 351
EP +
DI 10.1007/978-0-8176-4897-8_33
PG 3
WC Computer Science, Theory & Methods; Mathematics, Applied
SC Computer Science; Mathematics
GA BQY58
UT WOS:000282106500033
ER
PT S
AU Boye, RR
Peters, DW
Wendt, JR
Shul, RJ
Samora, S
Rich, SG
Carter, T
Lentine, AL
Kellogg, RA
Kemme, SA
AF Boye, R. R.
Peters, D. W.
Wendt, J. R.
Shul, R. J.
Samora, S.
Rich, S. G.
Carter, Tony
Lentine, A. L.
Kellogg, R. A.
Kemme, S. A.
BE Broquin, JE
Greiner, CM
TI Application of resonant subwavelength gratings to a rotary position
encoder
SO INTEGRATED OPTICS: DEVICES, MATERIALS, AND TECHNOLOGIES XIV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Integrated Optics - Devices, Materials, and Technologies
XIV
CY JAN 25-27, 2010
CL San Francisco, CA
SP SPIE
DE Subwavelength; diffractive optical element; resonant grating; guided
mode resonance filter
ID COUPLED-WAVE ANALYSIS; IMPLEMENTATION; FILTERS
AB Resonant subwavelength gratings have proven to be excellent devices for producing narrow resonances useful for filtering applications. In this paper we discuss the use of RSGs in a rotary position encoder intended for use in harsh environments. To avoid problems with routing electrical signals to the encoder, a single fiber optic connection is used to address the device with multiplexed wavelengths corresponding to position bits. Each wavelength has a corresponding RSG that is patterned in the appropriate position locations. A demonstration device utilizing RSGs with TiO(2) and SiO(2) films on a silicon substrate will be presented. The design and modeling effort provided several RSGs with resonances addressable by a single tunable laser source. Since multimode fiber is used to route the optical signals, the gratings were designed to be polarization insensitive. Additionally, the individual RSGs accommodate significant wavelength shifts to simplify the integration of the encoder system. The fabrication of the devices was based on electron beam lithography and details of this work will be presented. Measurements of the individual RSGs as well as a demonstration of the determination of rotary position using these gratings will be shown.
C1 [Boye, R. R.; Peters, D. W.; Wendt, J. R.; Shul, R. J.; Lentine, A. L.; Kellogg, R. A.; Kemme, S. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Boye, RR (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 10
TC 0
Z9 0
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8000-2
J9 PROC SPIE
PY 2010
VL 7604
AR 76040P
DI 10.1117/12.842673
PG 9
WC Optics
SC Optics
GA BSH14
UT WOS:000284398000021
ER
PT S
AU Gin, AV
Kemme, SA
Boye, RR
Peters, DW
Ihlefeld, JF
Briggs, RD
Wendt, JR
Ellis, AR
Marshall, LH
Carter, TR
Hunker, JD
Samora, S
AF Gin, A. V.
Kemme, S. A.
Boye, R. R.
Peters, D. W.
Ihlefeld, J. F.
Briggs, R. D.
Wendt, J. R.
Ellis, A. R.
Marshall, L. H.
Carter, T. R.
Hunker, J. D.
Samora, S.
BE Broquin, JE
Greiner, CM
TI HIGH SPEED OPTICAL FILTERING USING ACTIVE RESONANT SUBWAVELENGTH
GRATINGS
SO INTEGRATED OPTICS: DEVICES, MATERIALS, AND TECHNOLOGIES XIV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Integrated Optics - Devices, Materials, and Technologies
XIV
CY JAN 25-27, 2010
CL San Francisco, CA
SP SPIE
DE Active Filter; Multi-color; Resonant Subwavelength Grating; Optical
Device
ID THIN-FILMS
AB In this work, we describe the most recent progress towards the device modeling, fabrication, testing and system integration of active resonant subwavelength grating (RSG) devices. Passive RSG devices have been a subject of interest in subwavelength-structured surfaces (SWS) in recent years due to their narrow spectral response and high quality filtering performance. Modulating the bias voltage of interdigitated metal electrodes over an electrooptic thin film material enables the RSG components to act as actively tunable high-speed optical filters. The filter characteristics of the device can be engineered using the geometry of the device grating and underlying materials.
Using electron beam lithography and specialized etch techniques, we have fabricated interdigitated metal electrodes on an insulating layer and BaTiO(3) thin film on sapphire substrate. With bias voltages of up to 100V, spectral red shifts of several nanometers are measured, as well as significant changes in the reflected and transmitted signal intensities around the 1.55um wavelength.
Due to their small size and lack of moving parts, these devices are attractive for high speed spectral sensing applications. We will discuss the most recent device testing results as well as comment on the system integration aspects of this project.
C1 [Gin, A. V.; Kemme, S. A.; Boye, R. R.; Peters, D. W.; Ihlefeld, J. F.; Briggs, R. D.; Wendt, J. R.; Ellis, A. R.; Marshall, L. H.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Gin, AV (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM agin@sandia.gov
RI Ihlefeld, Jon/B-3117-2009; Gin, Aaron/E-3647-2010
NR 17
TC 0
Z9 0
U1 1
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8000-2
J9 PROC SPIE
PY 2010
VL 7604
AR 76040N
DI 10.1117/12.842681
PG 10
WC Optics
SC Optics
GA BSH14
UT WOS:000284398000019
ER
PT S
AU Kasiviswanathan, SP
Pan, F
AF Kasiviswanathan, Shiva Prasad
Pan, Feng
BE Lodi, A
Milano, M
Toth, P
TI Matrix Interdiction Problem
SO INTEGRATION OF AI AND OR TECHNIQUES IN CONSTRAINT PROGRAMMING FOR
COMBINATORIAL OPTIMIZATION PROBLEMS
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 7th International Conference Integration of AI and OR Techniques in
Constraint Programming for Combinatorial Optimization Problems
CY JUN 14-18, 2010
CL Bologna, ITALY
ID NETWORK INTERDICTION; PATH; MODEL
AB In the matrix interdiction problem, a real-valued matrix and an integer k is given. The objective is to remove a set of k matrix columns that minimizes in the residual matrix the sum of the row values, where the value of a row is defined to be the largest entry in that row. This combinatorial problem is closely related to bipartite network interdiction problem that can be applied to minimize the probability that an adversary can successfully smuggle weapons. After introducing the matrix interdiction problem, we study the computational complexity of this problem. We show that the matrix interdiction problem is NP-hard and that there exists a constant gamma such that it is even NP-hard to approximate this problem within an n(gamma) additive factor. We also present an algorithm for this problem that achieves an (n - k) multiplicative approximation ratio.
C1 [Kasiviswanathan, Shiva Prasad; Pan, Feng] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Kasiviswanathan, SP (reprint author), Los Alamos Natl Lab, CCS 3, Los Alamos, NM 87545 USA.
EM kasivisw@lanl.gov; fpan@lanl.gov
NR 29
TC 1
Z9 1
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-13519-4
J9 LECT NOTES COMPUT SC
PY 2010
VL 6140
BP 219
EP 231
PG 13
WC Computer Science, Artificial Intelligence; Computer Science, Theory &
Methods
SC Computer Science
GA BPP98
UT WOS:000279617200025
ER
PT S
AU Van Hentenryck, P
Bent, R
Coffrin, C
AF Van Hentenryck, Pascal
Bent, Russell
Coffrin, Carleton
BE Lodi, A
Milano, M
Toth, P
TI Strategic Planning for Disaster Recovery with Stochastic Last Mile
Distribution
SO INTEGRATION OF AI AND OR TECHNIQUES IN CONSTRAINT PROGRAMMING FOR
COMBINATORIAL OPTIMIZATION PROBLEMS
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 7th International Conference Integration of AI and OR Techniques in
Constraint Programming for Combinatorial Optimization Problems
CY JUN 14-18, 2010
CL Bologna, ITALY
ID LOCATION-ROUTING PROBLEM; RELIEF; LOGISTICS
AB This paper considers the single commodity allocation problem (SCAP) for disaster recovery, a fundamental problem faced by all populated areas. SCAPs are complex stochastic optimization problems that combine resource allocation, warehouse routing, and parallel fleet routing. Moreover, these problems must be solved under tight runtime constraints to be practical in real-world disaster situations. This paper formalizes the specification of SCAPs and introduces a novel multi-stage hybrid-optimization algorithm that utilizes the strengths of mixed integer programming, constraint programming, and large neighborhood search. The algorithm was validated on hurricane disaster scenarios generated by Los Alamos National Laboratory using state-of-the-art disaster simulation tools and is deployed to aid federal organizations in the US.
C1 [Van Hentenryck, Pascal; Coffrin, Carleton] Brown Univ, Providence, RI 02912 USA.
[Bent, Russell] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Van Hentenryck, P (reprint author), Brown Univ, Providence, RI 02912 USA.
NR 17
TC 13
Z9 13
U1 1
U2 2
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-13519-4
J9 LECT NOTES COMPUT SC
PY 2010
VL 6140
BP 318
EP +
PG 3
WC Computer Science, Artificial Intelligence; Computer Science, Theory &
Methods
SC Computer Science
GA BPP98
UT WOS:000279617200035
ER
PT J
AU Bissell, M
AF Bissell, Mina
TI Integrative Biology Editorial 2010
SO INTEGRATIVE BIOLOGY
LA English
DT Editorial Material
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Bissell, M (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
NR 0
TC 1
Z9 1
U1 0
U2 1
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1757-9694
J9 INTEGR BIOL
JI Integr. Biol.
PY 2010
VL 2
IS 1
BP 9
EP 9
DI 10.1039/b923760g
PG 1
WC Cell Biology
SC Cell Biology
GA 543KP
UT WOS:000273576400001
PM 20473406
ER
PT J
AU Warnick, W
AF Warnick, Walter
TI Federated search as a transformational technology enabling knowledge
discovery: the role of WorldWideScience.org
SO INTERLENDING & DOCUMENT SUPPLY
LA English
DT Article
DE Information retrieval; Search engines; United States of America
AB Purpose - The purpose of this paper is to describe the work of the Office of Scientific and Technical Information (OSTI) in the US Department of Energy Office of Science and OSTI's development of the powerful search engine, WorldWideScience.org. With tools such as Science.gov and WorldWideScience.org, the patron gains access to multiple, geographically dispersed deep web databases and can search all of the constituent sources with a single query.
Design/methodology/approach - The paper is both historical and descriptive.
Findings - That WorldWideScience.org fills a unique niche in discovering scientific material in an information landscape that includes search engines such as Google and Google Scholar.
Originality/value - This is one of the few papers to describe in depth the important work being done by the US Office of Scientific and Technical Information in the field of search and discovery.
C1 US DOE, Off Sci & Tech Informat, Germantown, MD USA.
RP Warnick, W (reprint author), US DOE, Off Sci & Tech Informat, Germantown, MD USA.
EM walter.warnick@science.doe.gov
NR 13
TC 5
Z9 5
U1 1
U2 5
PU EMERALD GROUP PUBLISHING LIMITED
PI BINGLEY
PA HOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND
SN 0264-1615
J9 INTERLEND DOC SUPPLY
JI Interlend. Doc. Supply
PY 2010
VL 38
IS 2
BP 82
EP 92
DI 10.1108/02641611011047150
PG 11
WC Information Science & Library Science
SC Information Science & Library Science
GA 627EM
UT WOS:000280022300004
ER
PT J
AU Xu, M
Ye, YY
Morris, JR
Sordelet, DJ
Kramer, MJ
AF Xu, Min
Ye, Y. Y.
Morris, J. R.
Sordelet, D. J.
Kramer, M. J.
TI In situ observation of thermal expansion of tetragonal C11b phase in
Zr2Cu(1-x)Pdx alloys
SO INTERMETALLICS
LA English
DT Article
DE Anisotropy; Crystal chemistry of intermetallics; Electronic structure of
metals and alloys; Thermal stability; Diffraction
ID TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; METALLIC GLASSES; AB-INITIO;
CRYSTALLIZATION BEHAVIOR; VEGARDS LAW; ZR-PD; DEVITRIFICATION;
TRANSFORMATION; DEVIATION
AB The C11b phase crystalline structure (structure type MoSi2, space group 14/mmm) in the Zr2Cu(1-x)Pdx (x=0, 0.25, 0.5, 0.75 and 1) alloys was examined in situ using high temperature X-ray diffraction (HTXRD) and Rietveld refinement of the data obtained at a constant heating rate. While the cell volume increases with increasing Pd as expected by the larger atomic radii, the coefficients of thermal expansion (CFEs) do not follow a uniform trend. The bonding in the basal plane is more elastically rigid than along the c-axis for all compositions. The CFE is more anisotropic for Zr2Pd than for Zr2Cu, which is consistent with the first-principles calculations that illustrate the rigidity of c-axis relatively to a-axis to be the less for Zr2Pd. The CTE of the a-axis for Zr2Pd is in fact negative over the temperature range measured. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Xu, Min; Sordelet, D. J.; Kramer, M. J.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Xu, Min; Ye, Y. Y.; Sordelet, D. J.; Kramer, M. J.] US DOE, Ames Lab, Ames, IA 50011 USA.
[Morris, J. R.] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA.
[Ye, Y. Y.] Wuhan Univ, Ctr Anal & Testing, Wuhan 430072, Hubei, Peoples R China.
[Morris, J. R.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
RP Kramer, MJ (reprint author), Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
EM minxu@iastate.edu
RI Morris, J/I-4452-2012
OI Morris, J/0000-0002-8464-9047
FU Division of Materials Sciences and Engineering; Office of Basic Energy
Sciences [DE-AC02-06CH11357]; US Department of Energy
[DE-AC05-00OR-22725]; Iowa State University [DE-AC02-07CH11358]
FX This research has been sponsored by the Division of Materials Sciences
and Engineering, Office of Basic Energy Sciences, US Department of
Energy under contract DE-AC05-00OR-22725 with UT-Battelle and contract
and DE-AC02-07CH11358 with Iowa State University. The Midwest
Universities Collaborative Access Team (MUCAT) sector at the APS is
supported by the US Department of Energy, Office of Science, Basic
Energy Sciences, through the Ames Laboratory. Use of the Advanced Photon
Source was supported by the US Department of Energy, Office of Science,
Basic Energy Sciences, under Contract No DE-AC02-06CH11357.
NR 22
TC 0
Z9 0
U1 0
U2 4
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
J9 INTERMETALLICS
JI Intermetallics
PD JAN
PY 2010
VL 18
IS 1
BP 8
EP 13
DI 10.1016/j.intermet.2009.05.016
PG 6
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 515RH
UT WOS:000271489900002
ER
PT J
AU Cheng, JL
Chen, G
Gao, P
Liu, CT
Liu, Y
AF Cheng, J. L.
Chen, G.
Gao, P.
Liu, C. T.
Liu, Y.
TI The critical cooling rate and microstructure evolution of
Zr41.2Ti13.8Cu12.5Ni10Be22.5 composites by Bridgman solidification
SO INTERMETALLICS
LA English
DT Article
DE Glasses, metallic; Rapid solidification processing; Microstructure
ID BULK METALLIC-GLASS; FORMING ABILITY; ENHANCED PLASTICITY;
FRACTURE-TOUGHNESS; AMORPHOUS-ALLOYS; DEFORMATION; IMPROVEMENT
AB The critical cooling rate and microstructure evolution were experimentally studied at cooling rates between 0.85 and 15.34 K/s by a Bridgman technique in Vit-1 (Zr41.2Ti13.8Cu12.5Ni10Be22.5). Our results show that the sample solidified at the rate above 10.03 K/s was fully amorphous whereas the samples solidified between 1.70 and 10.03 K/s were partially amorphous with crystalline phases, and samples solidified below 1.70 K/s were essentially crystalline. As the cooling rate decreased from 15.34 K/s to 1.82 K/s, the values of T-g and T-x were around 628 K and 702 K, respectively, but the heat of crystallization (Delta H-x) decreased with decreasing cooling rate. (C) 2009 Published by Elsevier Ltd.
C1 [Cheng, J. L.; Chen, G.; Gao, P.; Liu, Y.] Nanjing Univ Sci & Technol, Minist Educ, Engn Res Ctr Mat Behav & Design, Nanjing 210094, Peoples R China.
[Chen, G.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Gao, P.] Shagang Grp Inspect Ctr Phys & Chem, Zhangjiagang 215625, Peoples R China.
[Liu, C. T.] Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China.
[Liu, Y.] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117576, Singapore.
RP Chen, G (reprint author), Nanjing Univ Sci & Technol, Minist Educ, Engn Res Ctr Mat Behav & Design, Nanjing 210094, Peoples R China.
EM cheng1@ornl.gov; gchen@mail.njust.edu.cn; mseliy@nus.edu.sg
FU National Natural Sciences Foundation of China [50431030, 50871054]; U.S.
Department of Energy, Division of Materials Sciences and Engineering
FX This work was supported by the National Natural Sciences Foundation of
China (50431030 and 50871054). Work at Oak Ridge National Laboratory was
sponsored by the U.S. Department of Energy, Division of Materials
Sciences and Engineering.
NR 20
TC 7
Z9 8
U1 2
U2 9
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
J9 INTERMETALLICS
JI Intermetallics
PD JAN
PY 2010
VL 18
IS 1
BP 115
EP 118
DI 10.1016/j.intermet.2009.06.016
PG 4
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 515RH
UT WOS:000271489900018
ER
PT J
AU Stein, F
Vogel, SC
Eumann, M
Palm, M
AF Stein, F.
Vogel, S. C.
Eumann, M.
Palm, M.
TI Determination of the crystal structure of the epsilon phase in the Fe-Al
system by high-temperature neutron diffraction
SO INTERMETALLICS
LA English
DT Article
DE Intermetallics; Phase diagrams; Phase identification; Crystallography;
Crystal chemistry of intermetallics
ID UND MAGNETISCHE EIGENSCHAFTEN; TOF DIFFRACTOMETER; TEXTURE ANALYSIS;
X-RAY; ALLOYS; ALUMINUM; IRON; CONSTITUTION; HIPPO; LEGIERUNGEN
AB The crystal structure of the high-temperature c phase of the Fe-Al system has been determined by in-situ high-temperature neutron diffraction for the first time and the crystallographic parameters have been established by Rietveld refinement of the data. The E phase was found to have a body-centered cubic structure of the Hume-Rothery Cu(5)Zn(8)-type (space group I (4) over bar 3m (No. 217), Z=4, Pearson symbol cl52, Strukturbericht designation D8(2)). Accordingly, the E phase has the formula Fe(5)Al(8). Its lattice parameter is a = 8.9757(2) angstrom at 1120 degrees C, which is 3.02 times that of cubic FeAl (B2) at the same temperature. All fractional atomic coordinates, site occupation factors and interatomic distances were determined and it was examined how this phase can meet the rules for Hume-Rothery-type phases. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Stein, F.; Eumann, M.; Palm, M.] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany.
[Vogel, S. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Stein, F (reprint author), Max Planck Inst Eisenforsch GmbH, Max Planck Str 1, D-40237 Dusseldorf, Germany.
EM stein@mpie.de
RI Lujan Center, LANL/G-4896-2012
FU DOE Office of Basic Energy Sciences
FX The authors would like to thank Mrs Angelika Bobrowski, Mr Gerd
Bialkowski and Mr Ulrich Wellms for their help in cutting of the
samples, metallographic investigation and EPMA. This work has benefited
from the use of the Lujan Neutron Scattering Center at LANSCE, which is
funded by DOE Office of Basic Energy Sciences. The Los Alamos National
Laboratory is operated by Los Alamos National Security LLC under DOE
contract DE-AC52-06NA25396.
NR 40
TC 17
Z9 18
U1 1
U2 14
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
J9 INTERMETALLICS
JI Intermetallics
PD JAN
PY 2010
VL 18
IS 1
BP 150
EP 156
DI 10.1016/j.intermet.2009.07.006
PG 7
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 515RH
UT WOS:000271489900025
ER
PT S
AU Gao, JR
Khosropanah, P
Baryshev, A
Zhang, W
Jellema, W
Hovenier, JN
Klapwijk, TM
Paveliev, DG
Williams, BS
Kumar, S
Hu, Q
Reno, L
Klein, B
Hesler, JL
AF Gao, J. R.
Khosropanah, P.
Baryshev, A.
Zhang, W.
Jellema, W.
Hovenier, J. N.
Klapwijk, T. M.
Paveliev, D. G.
Williams, B. S.
Kumar, S.
Hu, Q.
Reno, L.
Klein, B.
Hesler, J. L.
BE Rastogi, PK
Hack, E
TI Phase-locking of a 2.7-THz quantum cascade laser
SO INTERNATIONAL CONFERENCE ON ADVANCED PHASE MEASUREMENT METHODS IN OPTICS
AN IMAGING
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Advanced Phase Measurement Methods in Optics
and Imaging
CY MAY 16-21, 2010
CL Ascona, SWITZERLAND
SP Swiss Natl Sci Fdn, Centro Stefano Franscini
DE Phase locking; terahertz; quantum cascade laser; local oscillator
ID LOCAL OSCILLATOR; TERAHERTZ; THZ; FREQUENCY; RADIATION; MICROWAVE;
RECEIVER
AB We successfully realized phase-locking of a 2.7-THz metal-metal waveguide quantum cascade laser (QCL) to a reference, which is generated from an external microwave signal by applying two stages of frequency multiplication. The reference is the 15th harmonic of a signal at 182 GHz, which is produced by a semiconductor superlattice nonlinear device. The signal at 182 GHz is generated by a multiplier-chain (x12) from a microwave synthesizer at similar to 15 GHz. Both QCL laser and reference radiations are coupled into a superconducting NbN hot electron bolometer mixer, resulting in a beat signal, which is fed into a phase-lock loop. Spectral analysis of the beat signal confirms that the QCL is phase locked. This result is a crucial demonstration for a QCL used for local oscillator and opens the possibility to extend heterodyne interferometers into the far-infrared range.
C1 [Gao, J. R.; Khosropanah, P.; Baryshev, A.; Zhang, W.; Jellema, W.] Univ Groningen, SRON Netherlands Inst Space Res, Landleven 12, NL-9747 AD Groningen, Netherlands.
[Khosropanah, P.; Hovenier, J. N.; Klapwijk, T. M.] Delft Univ Technol, Fac Sci Appl, Kavli Inst NanoSci, NL-2628 CJ Delft, Netherlands.
[Zhang, W.] Natl Astron Observ China, Chinese Acad Sci, Purple Mt Observ PMO, Nanjing 210008, Peoples R China.
[Paveliev, D. G.] State Univ Nizhny Novgorod, Radiophy fac, Lab Semicond Devices, Novgorod, Russia.
[Williams, B. S.; Kumar, S.; Hu, Q.] MIT, Dept Elect Engn & Comp Sci, Res Lab Elect, Cambridge, MA 02139 USA.
[Reno, L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Klein, B.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Hesler, J. L.] Virginia Diodes Inc, Charlottesville, VA 22902 USA.
RP Gao, JR (reprint author), Univ Groningen, SRON Netherlands Inst Space Res, Landleven 12, NL-9747 AD Groningen, Netherlands.
EM j.r.gao@tudelft.nl
FU AFOSR; NASA; NSF; Sandia Corporation [DE-AC04-94AL85000]
FX The authors acknowledge NASA-JPL for the use of a W-band power amplifier
chain used for spectral tests of Herschel-HIFI and X. Gu for performing
the beam measurement shown in figure 2. The work at TU Delft and SRON is
partially supported by the AMSTAR project of Radionet. The work at MIT
is supported by AFOSR, NASA and the NSF. Sandia is a multi-program
laboratory operated by Sandia Corporation, a Lockheed Martin Company,
for the US Dept. of Energy under Contract DE-AC04-94AL85000.
NR 29
TC 3
Z9 3
U1 1
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0783-1
J9 AIP CONF PROC
PY 2010
VL 1236
BP 173
EP +
DI 10.1063/1.3426106
PG 3
WC Optics; Physics, Applied; Imaging Science & Photographic Technology
SC Optics; Physics; Imaging Science & Photographic Technology
GA BRV60
UT WOS:000283749400029
ER
PT S
AU Daw, CS
Finney, CEA
AF Daw, C. Stuart
Finney, Charles E. A.
BE In, V
Longhini, P
Palacios, A
TI Dynamic instabilities in spark-ignited combustion engines with high
exhaust gas recirculation
SO INTERNATIONAL CONFERENCE ON APPLICATIONS IN NONLINEAR DYNAMICS (ICAND
2010)
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Applications in Nonlinear Dynamics
CY SEP 21-24, 2010
CL Lake Louise, CANADA
SP Off Naval Res, Nonlinear Dynam Syst
DE combustion instabilities; engines; spark ignition
AB We propose a cycle-resolved dynamic model for combustion instabilities in spark-ignition engines operating with high levels of exhaust gas recirculation (EGR). We account for the complex combustion response to cycle-to-cycle feedback by utilizing a global probability distribution that describes the pre-spark state of in-cylinder fuel mixing. The proposed model does a good job of simulating combustion instabilities observed in both lean-fueling engine experiments and in experiments where nitrogen dilution is used to simulate some of the combustion inhibition of EGR. When used to simulate high internal EGR operation, the model exhibits a range of global bifurcations and chaos that appear to be very robust. We use the model to show that it should be possible to reduce high EGR combustion instabilities by switching from internal to external EGR.
C1 [Daw, C. Stuart; Finney, Charles E. A.] Fuels Engines & Emiss Res Ctr, Oak Ridge Natl Lab, Knoxville, TN 37932 USA.
RP Daw, CS (reprint author), Fuels Engines & Emiss Res Ctr, Oak Ridge Natl Lab, 2360 Cherahala Blvd, Knoxville, TN 37932 USA.
NR 15
TC 0
Z9 0
U1 1
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0894-4
J9 AIP CONF PROC
PY 2010
VL 1339
BP 158
EP 171
DI 10.1063/1.3574854
PG 14
WC Physics, Applied
SC Physics
GA BVJ04
UT WOS:000291631600015
ER
PT S
AU Eggleton, PP
AF Eggleton, Peter P.
BE Kalogera, V
VanderSluys, M
TI The Rabbit and the Lion
SO INTERNATIONAL CONFERENCE ON BINARIES: IN CELEBRATION OF RON WEBBINK'S
65TH BIRTHDAY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Binaries: In Celebration of Ron Webbink's
65th Birthday
CY JUN 22-25, 2010
CL Mykonos, GREECE
SP Ctr Interdisciplinary Explorat & Res Astrophys, Nw Univ, EO Haven Professorship Fund
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Eggleton, PP (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0869-2
J9 AIP CONF PROC
PY 2010
VL 1314
BP 3
EP 4
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BTK72
UT WOS:000287171500001
ER
PT S
AU Kisseleva-Eggleton, L
Eggleton, PP
AF Kisseleva-Eggleton, Ludmila
Eggleton, Peter P.
BE Kalogera, V
VanderSluys, M
TI Multiple Stars and Stellar Evolution
SO INTERNATIONAL CONFERENCE ON BINARIES: IN CELEBRATION OF RON WEBBINK'S
65TH BIRTHDAY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Binaries: In Celebration of Ron Webbink's
65th Birthday
CY JUN 22-25, 2010
CL Mykonos, GREECE
SP Ctr Interdisciplinary Explorat & Res Astrophys, Nw Univ, EO Haven Professorship Fund
ID PHOTOELECTRIC RADIAL-VELOCITIES; SPECTROSCOPIC BINARY ORBITS; V838
MONOCEROTIS; SHORT-PERIOD; ELEMENTS; SYSTEMS
AB We discuss the incidence of multiplity, particularly among the bright and therefore relatively thoroughly examined stars, and note certain types of (a) binary stars that might be expected to merge, and (b) single stars with characteristics that suggest they may be former binaries that merged. Some Be stars and rapidly rotating red giants seem like possible merger products; and perhaps even some magnetic peculiar stars that are rapidly rotating.
C1 [Kisseleva-Eggleton, Ludmila] Express Coll Digital Arts, Emeryville, CA 94608 USA.
[Eggleton, Peter P.] Lawrence Livermore Natl Lab, Livermore, CA USA.
RP Kisseleva-Eggleton, L (reprint author), Express Coll Digital Arts, Emeryville, CA 94608 USA.
FU National Nuclear Security Administration [DE-AC52-07NA27344]
FX This study has been carried out under the auspices of the U.S.Department
of Energy, National Nuclear Security Administration, under Contract
DE-AC52-07NA27344.I gratefully acknowledge the help of the Centre des
Donnees Stellaires (Strasbourg), and of the Astronomical Data System.
NR 21
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0869-2
J9 AIP CONF PROC
PY 2010
VL 1314
BP 128
EP +
PG 3
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BTK72
UT WOS:000287171500028
ER
PT S
AU Belle, KE
Hoard, DW
Howell, SB
AF Belle, Kunegunda E.
Hoard, D. W.
Howell, S. B.
BE Kalogera, V
VanderSluys, M
TI Dust in Intermediate Polars: Light Curves from the Spitzer Space
Telescope
SO INTERNATIONAL CONFERENCE ON BINARIES: IN CELEBRATION OF RON WEBBINK'S
65TH BIRTHDAY
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Binaries: In Celebration of Ron Webbink's
65th Birthday
CY JUN 22-25, 2010
CL Mykonos, GREECE
SP Ctr Interdisciplinary Explorat & Res Astrophys, Nw Univ, EO Haven Professorship Fund
DE cataclysmic variables; infrared observations
AB Here we present Spitzer 4.5 mu m light curves of two intermediate polars (IPs) - DQ Her and EX Hya - obtained with Cycle 6 observations. Our initial evaluation of the light curves of DQ Her and EX Hya shows that these two IPs exhibit similar behavior as that seen in non-magnetic systems (specifically WZ Sge). The binary eclipses seen in the Spitzer light curves of DQ Her and EX Hya are about three times longer than their optical counterparts, indicating that a reservoir of dust extends beyond the outer edge of the optically visible accretion disk.
C1 [Belle, Kunegunda E.] Los Alamos Natl Lab, XTD-5 MS T087, Los Alamos, NM 87545 USA.
[Hoard, D. W.] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA.
[Howell, S. B.] Natl Opt Astron Observ, WIYN Observat, Tucson, AZ 85719 USA.
RP Belle, KE (reprint author), Los Alamos Natl Lab, XTD-5 MS T087, Los Alamos, NM 87545 USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0869-2
J9 AIP CONF PROC
PY 2010
VL 1314
BP 204
EP +
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BTK72
UT WOS:000287171500039
ER
PT S
AU Alexander, CS
Knudson, MD
Hall, CA
AF Alexander, C. S.
Knudson, M. D.
Hall, C. A.
BE Takemura, K
TI High accuracy Hugoniot measurements at multi-megabar pressure utilizing
the Sandia Z accelerator
SO INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT
AIRAPT-22 AND HPCJ-50
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Joint AIRAPT-22 and HPCJ-50 Conference/International Conference on High
Pressure Science and Technology
CY JUL 26-31, 2009
CL Tokyo, JAPAN
ID COMPRESSION; VELOCITIES
AB The Hugoniot response of materials is centrally important in the field of high pressure science. Highly accurate Hugoniot measurements not only provide better material references but also allow for the detection of subtle material phenomena. A process has been developed utilizing the Sandia Z accelerator to measure Hugoniot response at multi-megabar pressure resulting in extremely high accuracy data. Key considerations are the use of large surface area flyer plates allowing measurement configurations with multiple targets and diagnostics. This allows for greatly reduced uncertainty in the data. The details of this process are given and each aspect is closely examined focusing on the individual contributions to the overall accuracy of the result.
C1 [Alexander, C. S.; Knudson, M. D.; Hall, C. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Alexander, CS (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM calexa@sandia.gov
NR 12
TC 1
Z9 3
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 215
AR 012150
DI 10.1088/1742-6596/215/1/012150
PG 8
WC Instruments & Instrumentation; Materials Science, Multidisciplinary;
Physics, Applied; Physics, Condensed Matter
SC Instruments & Instrumentation; Materials Science; Physics
GA BVQ88
UT WOS:000292385100150
ER
PT S
AU Cynn, H
Lipp, M
Evans, W
Ohishi, Y
AF Cynn, Hyunchae
Lipp, Magnus
Evans, William
Ohishi, Yasuo
BE Takemura, K
TI High pressure crystal structure of PrN
SO INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT
AIRAPT-22 AND HPCJ-50
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Joint AIRAPT-22 and HPCJ-50 Conference/International Conference on High
Pressure Science and Technology
CY JUL 26-31, 2009
CL Tokyo, JAPAN
ID NACL-TYPE STRUCTURE; PHASE-TRANSITIONS; LANTHANIDE; NITRIDES;
TEMPERATURE; BEHAVIOR; BAO
AB Compression of PrN yields a phase transformation to a tetragonal structure with similar to 8.8 % volume collapse at similar to 40 GPa at ambient temperature. A refinement reveals a distorted CsCl-like structure for the high pressure phase PrN(II), which is different from the high pressure phases seen among other lanthanide monopnictides. The space group of the new structure is P4/nmm (#129) with Pr in the 2c(0,1/2,0.3546) and N in the 2a(0,0,0) positions. PrN(II) persists to 85 GPa.
C1 [Cynn, Hyunchae; Lipp, Magnus; Evans, William] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Ohishi, Yasuo] SPring 8 JASRI, Mikazuki, Hyogo 6795148, Japan.
RP Cynn, H (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
EM cynn1@llnl.gov
NR 21
TC 10
Z9 10
U1 0
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 215
AR 012010
DI 10.1088/1742-6596/215/1/012010
PG 6
WC Instruments & Instrumentation; Materials Science, Multidisciplinary;
Physics, Applied; Physics, Condensed Matter
SC Instruments & Instrumentation; Materials Science; Physics
GA BVQ88
UT WOS:000292385100010
ER
PT S
AU Halevy, I
Carmon, R
Winterrose, ML
Yeheskel, O
Tiferet, E
Ghose, S
AF Halevy, I.
Carmon, R.
Winterrose, M. L.
Yeheskel, O.
Tiferet, E.
Ghose, S.
BE Takemura, K
TI Pressure-Induced Structural Phase Transitions in Y2O3 Sesquioxide
SO INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT
AIRAPT-22 AND HPCJ-50
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT Joint AIRAPT-22 and HPCJ-50 Conference/International Conference on High
Pressure Science and Technology
CY JUL 26-31, 2009
CL Tokyo, JAPAN
AB Lanthanide sesquioxides (Ln(2)O(3)) display three stable solid phases as a function of temperature. It has been assumed that Y2O3 should display similar crystal structures and phase transitions as other Ln(2)O(3). Recently a new phase transition sequence was reported for Y2O3, contradicting earlier studies. In this work Y2O3 was found to have the same phase transition sequence as other lanthanide sesquioxides (Ln(2)O(3)). Additionally, in this study increasing external pressure has been found to have a similar effect to increasing temperature on crystal structure in Y2O3. At room temperature the first pressure-induced phase transition occured at similar to 13 GPa, in which the symmetry changed from cubic to monoclinic symmetry. The symmetry then changed from monoclinic to hexagonal at 24.5 GPa. The sequence of phase transitions was not reversible upon pressure release. With decreasing pressure only a single phase transition occurred, from hexagonal to monoclinic symmetry.
C1 [Halevy, I.; Winterrose, M. L.] CALTECH, Dept Mat Sci, Pasadena, CA 91125 USA.
[Halevy, I.; Yeheskel, O.; Tiferet, E.] Nucl Res Ctr Negev, Dept Phys, Beer Sheva, Israel.
[Carmon, R.] Ben Gurion Univ Negev, Dept Mat Sci, I-84105 Salerno, Italy.
[Ghose, S.] Brookhaven Natl Lab, Natl Synchrotron Light Source Dept, Upton, NY 11973 USA.
RP Halevy, I (reprint author), CALTECH, Dept Mat Sci, Pasadena, CA 91125 USA.
NR 13
TC 14
Z9 14
U1 0
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 215
AR 012003
DI 10.1088/1742-6596/215/1/012003
PG 8
WC Instruments & Instrumentation; Materials Science, Multidisciplinary;
Physics, Applied; Physics, Condensed Matter
SC Instruments & Instrumentation; Materials Science; Physics
GA BVQ88
UT WOS:000292385100003
ER
PT S
AU Bauer, ED
Sidorov, VA
Lee, H
Kurita, N
Ronning, F
Movshovich, R
Thompson, JD
AF Bauer, E. D.
Sidorov, V. A.
Lee, H.
Kurita, N.
Ronning, F.
Movshovich, R.
Thompson, J. D.
BE Goll, G
Lohneysen, HV
Loidl, A
Pruschke, T
Richter, M
Schultz, L
Surgers, C
Wosnitza, J
TI Coexistence of antiferromagnetism and superconductivity in CePt(2)In(7)
SO INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Magnetism (ICM 2009)
CY JUL 26-31, 2009
CL Karlsruhe, GERMANY
ID MAGNETISM; PRESSURE; CERHIN5
AB The physical properties of CePt(2)In(7) are presented at pressures up to 3.12 Gpa. Antiferromagnetic order occurs at T(N) = 505 K at ambient pressure and first increases with pressure up to P similar to 1.5 GPa, then decreases with further applied pressure up to 3.12 GPa. Another feature, attributed to superconductivity, is observed at 1 K at 1 GPa in the specific heat that grows in magnitude and increases to 2.1 K when the magnetism is weak at 3.12 GPa. Therefore, CePt(2)In(7) displays an evolution with pressure and a coexistence of magnetism and superconductivity that is remarkably similar to that of the heavy fermion superconductor CeRhIn(5)
C1 [Bauer, E. D.; Sidorov, V. A.; Lee, H.; Kurita, N.; Ronning, F.; Movshovich, R.; Thompson, J. D.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Bauer, ED (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM edbauer@lanl.gov
RI Bauer, Eric/D-7212-2011;
OI Bauer, Eric/0000-0003-0017-1937
NR 16
TC 8
Z9 8
U1 3
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 200
AR UNSP 012011
DI 10.1088/1742-6596/200/1/012011
PG 4
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA BVE58
UT WOS:000291321300011
ER
PT S
AU Weber, F
Castellan, JP
Rosenkranz, S
Osborn, R
Rosenmann, D
Iavarone, M
AF Weber, F.
Castellan, J. -P.
Rosenkranz, S.
Osborn, R.
Rosenmann, D.
Iavarone, M.
BE Goll, G
Lohneysen, HV
Loidl, A
Pruschke, T
Richter, M
Schultz, L
Surgers, C
Wosnitza, J
TI Extended X-ray Absorption Fine Structure Spectroscopy in Co0.013NbSe2
SO INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Magnetism (ICM 2009)
CY JUL 26-31, 2009
CL Karlsruhe, GERMANY
SP Univ Karlsruhe, Forschungszentrum Karlsruhe, Int Union Pure & Appl Phys, City Karlsruhe, German Natl Sci Fdn, European Commission COST MPNS
ID CHARGE-DENSITY-WAVE; IFEFFIT
AB We present a study of the local environment of the Co atom in single crystalline CoxNbSe2, x=0.013, via Extended X-ray Absorption Fine Structure (EXAFS) measurements at the Co K-edge (7.7 keV) at various temperatures. Co intercalation quickly suppresses superconductivity and the charge-density wave (CDW) present in pure NbSe2. In order to study the effect of impurities on superconducting and CDW states one has to verify the random distribution of the intercalated atoms in contrast to possible clustering which could lead to additional, e.g. magnetic, interactions in the case of Co intercalation. Our measurements show that the Co atoms are indeed randomly distributed in Co0.013NbSe2.
C1 [Weber, F.; Castellan, J. -P.; Rosenkranz, S.; Osborn, R.; Rosenmann, D.; Iavarone, M.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Weber, F (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM fweber@anl.gov
RI Rosenkranz, Stephan/E-4672-2011; Osborn, Raymond/E-8676-2011
OI Rosenkranz, Stephan/0000-0002-5659-0383; Osborn,
Raymond/0000-0001-9565-3140
NR 15
TC 3
Z9 3
U1 1
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 200
AR 012224
DI 10.1088/1742-6596/200/1/012224
PG 4
WC Materials Science, Multidisciplinary; Physics, Condensed Matter
SC Materials Science; Physics
GA BVE58
UT WOS:000291321301040
ER
PT S
AU Braga, MH
Acatrinei, A
Hartl, M
Vogel, S
Proffen, T
Daemen, L
AF Braga, M. H.
Acatrinei, A.
Hartl, M.
Vogel, S.
Proffen, Th
Daemen, L.
GP IOP
TI New Promising Hydride Based on the Cu-Li-Mg System
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID HYDROGEN; MAGNESIUM; MG2NIH4; ALLOYS
AB We investigated the ternary Cu-Li-Mg system, in particular the CuLi(x)Mg(2-x) (x = 0.08) for hydrogen storage. Instead of crystallizing in an orthorhombic phase, as CuMg(2), this phase presents a hexagonal structure very similar to that of NiMg(2) and NiMg(2)H(0.3). In this work we will discuss the structure of CuLi(x)Mg(2-x) by the analysis of the neutron scattering data and first principles calculations. The first results for a hydride (deuteride) phase will also mentioned since preliminary studies at LANSCE showed that CuLi(x)Mg(2-x) might absorb approximately 5.3 to 6 wt% of H at an equilibrium pressure of approximately 27 bar at 200 degrees C. If these results are confirmed in future work, this will mean that, not only CuLixMg2-x absorbs a considerable amount of hydrogen (close to DOE's expectations for hydrogen storage materials), but also will probably release it at a temperature in the range of 50 to 150 degrees C, where applications are easier to develop. Hence it should be possible to use this alloy with fuel cells or in batteries. Another important observation is that cycling has a strong effect on the structure of the hydride.
C1 [Braga, M. H.; Acatrinei, A.; Hartl, M.; Vogel, S.; Proffen, Th; Daemen, L.] Los Alamos Natl Lab, LANSCE, Los Alamos, NM 87545 USA.
RP Braga, MH (reprint author), Los Alamos Natl Lab, LANSCE, Mail Stop H805, Los Alamos, NM 87545 USA.
EM mbraga@lanl.gov
RI Lujan Center, LANL/G-4896-2012; Braga, Maria Helena/A-2491-2014; Hartl,
Monika/F-3094-2014; Proffen, Thomas/B-3585-2009; Hartl,
Monika/N-4586-2016;
OI Braga, Maria Helena/0000-0003-4577-2154; Hartl,
Monika/0000-0002-6601-7273; Proffen, Thomas/0000-0002-1408-6031; Hartl,
Monika/0000-0002-6601-7273; Vogel, Sven C./0000-0003-2049-0361
NR 12
TC 2
Z9 2
U1 6
U2 11
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012040
DI 10.1088/1742-6596/251/1/012040
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100040
ER
PT S
AU Cardoso, MB
Smolensky, D
Heller, WT
O'Neill, H
AF Cardoso, Mateus B.
Smolensky, Dmitriy
Heller, William T.
O'Neill, Hugh
GP IOP
TI Investigation of detergent effects on the solution structure of spinach
Light Harvesting Complex II
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID TIME-RESOLVED FLUORESCENCE; A/B PROTEIN COMPLEX; SCATTERING; RESOLUTION;
STATE
AB The properties of spinach light harvesting complex II (LHC II), stabilized in the detergents Triton X-100 (TX100) and n-Octyl-beta-D-Glucoside (BOG), were investigated by small-angle neutron scattering (SANS). The LHC II-BOG scattering curve overlaid well with the theoretical scattering curve generated from the crystal structure of LHC II indicating that the protein preparation was in its native functional state. On the other hand, the simulated LHC II curve deviated significantly from the LHC II-TX100 experimental data. Analysis by circular dichroism spectroscopy supported the SANS analysis and showed that LHC II-TX100 is inactivated. This investigation has implications for extracting and stabilizing photosynthetic membrane proteins for the development of biohybrid photoconversion devices.
C1 [Cardoso, Mateus B.; Smolensky, Dmitriy; Heller, William T.; O'Neill, Hugh] Oak Ridge Natl Lab, Div Chem Sci, Ctr Struct Mol Biol, Oak Ridge, TN 37831 USA.
RP Cardoso, MB (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Ctr Struct Mol Biol, Oak Ridge, TN 37831 USA.
EM hellerwt@ornl.gov; oneillhm@ornl.gov
RI Cardoso, Mateus/A-7926-2015;
OI Cardoso, Mateus/0000-0003-2102-1225; O'Neill, Hugh/0000-0003-2966-5527
NR 13
TC 1
Z9 1
U1 1
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012041
DI 10.1088/1742-6596/251/1/012041
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100041
ER
PT S
AU Carpenter, JM
Agamalian, M
AF Carpenter, John M.
Agamalian, Michael
GP IOP
TI Aiming for the theoretical limit of sensitivity of Bonse-Hart USANS
instruments
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID ANGLE NEUTRON-SCATTERING; CRYSTALS; DIFFRACTOMETER; CURVES
AB The basis of the Double-Crystal Diffractometer (DCD), used for ultra-small angle neutron scattering (USANS), is that the reflectivity function is very near 1.0 for vertical bar y vertical bar < 1, where y = (theta - theta(B))/delta Theta(D), falls off rapidly for vertical bar y vertical bar > 1, eventually decreasing as y(-2). In the Bonse-Hart multi-bounce crystal the reflectivity function R(y) transforms into R-m(y) and in the wings, for large |y|, theoretically decreases as y(-2)m after m consecutive Bragg reflections inside the channel-cut crystal. Here theta and theta(B) are respectively the diffraction angle and the Bragg angle (for given wavelength) and delta Theta(D) is the width of the Darwin plateau. However, the experimental reflectivity R-exp(m)(y) obtained for m = 3 exceeds the theoretical prediction by over two orders of magnitude in the range of the far wings, which creates limitations for USANS studies of weakly scattering objects.
We used the pulsed-source neutron time-of-flight (TOF) technique to study this discrepancy in more detail. Two identical Si(111) crystals, a slab-shaped single-bounce and a channel-cut triple-bounce, were measured at the nominal Bragg angle theta(B) = 24.4 degrees in the TOF powder diffractometer GPPD at IPNS, in the range 0.2 < lambda < 4.0 angstrom of the first seven Bragg reflections from Si(111) family. Cadmium shielding protected the detectors from view of the first-bounce crystal. The experimental data obtained from the single-bounce crystal shows thermal diffuse (phonon) scattering (TDS) filling the region between the Bragg reflections, and exhibiting the symmetry of the reciprocal lattice. With appropriate shielding installed, the triple-bounce Bragg reflections, in contrast, are TDS-free in the range 0.6 < lambda < 3.0 angstrom; however, the intensity of TDS grows in the range lambda < 0.5 angstrom, reaching the level of TDS registered for the single-bounce reflections (777) and (888). The growth of TDS correlates with the increase of the Cd transmission T(lambda) in the range 0.2 < lambda < 0.5 angstrom, which in the vicinity of (888) reflection is T(lambda) approximate to 0.9. Therefore, the Cd shielding of the triple-bounce crystal becomes ineffective and the parasitic single-bounce back-face reflection and TDS, blocked for 0.5 < lambda < 3.0 angstrom, reappear for lambda < 0.5 angstrom.
It is practically impossible to separate this parasitic scattering from the triple-bounce reflection at steady state neutron beam lines except by the use of highly curved neutron guides. However, the TOF-USANS instrument, which is currently under construction at SNS, allows separation of the orders of Bragg reflections and the residual TDS in time-of-flight and thus the discovered parasitic effect cannot compromise its sensitivity. Thus, we expect to approach the theoretical limit of sensitivity for the SNS TOF-USANS instrument.
C1 [Carpenter, John M.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP Carpenter, JM (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM jmcarpenter@anl.gov
OI Agamalian, Michael/0000-0002-9112-2534
NR 13
TC 2
Z9 2
U1 1
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012056
DI 10.1088/1742-6596/251/1/012056
PG 8
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100056
ER
PT S
AU Christen, HM
MacDougall, GJ
Kim, HS
Kim, DH
Boatner, LA
Bennett, CJC
Zarestky, JL
Nagler, SE
AF Christen, H. M.
MacDougall, G. J.
Kim, H-S
Kim, D. H.
Boatner, L. A.
Bennett, C. J. Callender
Zarestky, J. L.
Nagler, S. E.
GP IOP
TI Potassium tantalate substrates for neutron experiments on
antiferromagnetic perovskite films
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID POWDER DIFFRACTION; PHASE-TRANSITION
AB For the study of antiferromagnetism in thin-film materials, neutron diffraction is a particularly important tool, especially since magnetometry experiments are often complicated by the substrate's strong diamagnetic or paramagnetic contribution. However, the substrate, by necessity, has a lattice parameter that is very similar to that of the film, and in most cases is over 1000 times more massive than the film. Therefore, even weak structural distortions in the substrate crystal may complicate the analysis of magnetic scattering from the film. Here we show that in contrast to most other perovskite substrates (including SrTiO3, LaAlO3, etc.), KTaO3 provides a uniquely appropriate substrate platform for magnetic diffraction experiments on epitaxial oxide films.
C1 [Christen, H. M.; Kim, H-S; Kim, D. H.; Boatner, L. A.; Bennett, C. J. Callender] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RP Christen, HM (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, POB 2008, Oak Ridge, TN 37831 USA.
EM christenhm@ornl.gov
RI Christen, Hans/H-6551-2013; Nagler, Stephen/E-4908-2010; Boatner,
Lynn/I-6428-2013;
OI Christen, Hans/0000-0001-8187-7469; Nagler, Stephen/0000-0002-7234-2339;
Boatner, Lynn/0000-0002-0235-7594; MacDougall,
Gregory/0000-0002-7490-9650
NR 12
TC 0
Z9 0
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012021
DI 10.1088/1742-6596/251/1/012021
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100021
ER
PT S
AU Crawford, RK
Dean, R
Ferguson, P
Galambos, J
Gallmeier, F
McManamy, T
Rennich, M
AF Crawford, R. K.
Dean, R.
Ferguson, P.
Galambos, J.
Gallmeier, F.
McManamy, T.
Rennich, M.
GP IOP
TI The Second Target Station at the ORNL Spallation Neutron Source
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
AB After the Spallation Neutron Source (SNS) construction project was completed in June, 2006, development of plans to construct a second target station (STS) at SNS began. These plans have evolved to the establishment of a reference concept for a STS and associated neutron beam instruments, and the evaluation of the expected performance for this station, all of which have been documented in a White Paper. Based on this White Paper, the Department of Energy has approved development of a detailed conceptual design leading to a construction project for the STS. The STS reference design is based on pulse stealing from the 60 Hz SNS accelerator system, with one pulse of every three going to the STS and the other two going to the first target station. The STS would operate in long-proton-pulse mode with no pulse compression in the accumulator ring, and would be optimized for production of intense beams of cold neutrons. The reference concept for the STS and the estimated performance for this concept will be discussed
C1 [Crawford, R. K.; Dean, R.; Ferguson, P.; Galambos, J.; Gallmeier, F.; McManamy, T.; Rennich, M.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Crawford, RK (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA.
EM crawfordrk@ornl.gov
OI Rennich, Mark/0000-0001-6945-0075; Ferguson, Phillip/0000-0002-7661-4223
NR 1
TC 3
Z9 3
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012054
DI 10.1088/1742-6596/251/1/012054
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100054
ER
PT S
AU Ehlers, G
Mamontov, E
AF Ehlers, G.
Mamontov, E.
GP IOP
TI Low Lying Spin Excitation in the Spin Ice, Ho(2)Ti(2)O(7)
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID CROSSOVER
AB The high flux and low background of the new backscattering spectrometer at the SNS combine to produce an excellent signal to noise ratio, allowing us to investigate a low lying weak excitation never seen before in the spin ice, Ho(2)Ti(2)O(7). This non-dispersive excitation has been observed at E = 26.3 mu eV below 100 K but is resolution limited only below similar to 65 K. It is indifferent to magnetic fields below mu(0)H - 4.5 T, at 1.6 K. These characteristics help us to identify the excitation as due to the nuclear spin system.
C1 [Ehlers, G.; Mamontov, E.] Oak Ridge Natl Lab, SNS, Oak Ridge, TN 37831 USA.
RP Ehlers, G (reprint author), Oak Ridge Natl Lab, SNS, Oak Ridge, TN 37831 USA.
EM ehlersg@ornl.gov
RI Ehlers, Georg/B-5412-2008; Mamontov, Eugene/Q-1003-2015
OI Ehlers, Georg/0000-0003-3513-508X; Mamontov, Eugene/0000-0002-5684-2675
NR 23
TC 1
Z9 1
U1 2
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012003
DI 10.1088/1742-6596/251/1/012003
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100003
ER
PT S
AU Frost, M
Hoffmann, C
Thomison, J
Overbay, M
Austin, M
Carman, P
Viola, R
Miller, E
Mosier, L
AF Frost, Matthew
Hoffmann, Christina
Thomison, Jack
Overbay, Mark
Austin, Michael
Carman, Peter
Viola, Robert
Miller, Echo
Mosier, Lisa
GP IOP
TI Initial testing of a Compact Crystal Positioning System for the TOPAZ
Single-Crystal Diffractometer at the Spallation Neutron Source
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
AB A precise, versatile, and automated method of orienting a sub-millimeter crystal in a focused neutron beam is required for efficient operation of the TOPAZ Single Crystal Diffractometer at the Spallation Neutron Source at Oak Ridge National Laboratory. To fulfill this need, a Compact Crystal Positioning System (CCPS) has been developed in collaboration with Square One Systems Design in Jackson, Wyoming. The system incorporates a tripod design with six vacuum-compatible piezoelectric linear motors capable of < 1 mu m resolution. National Instruments LabVIEW provides a means of system automation while at the same time accommodating the modular nature of the SNS sample environment control software for straightforward system integration. Results from an ambient test at the Advanced Photon Source at Argonne National Laboratory will be presented.
C1 [Frost, Matthew; Hoffmann, Christina; Thomison, Jack; Overbay, Mark] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Frost, M (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA.
EM frostmj@ornl.gov
RI hoffmann, christina/D-2292-2016;
OI hoffmann, christina/0000-0002-7222-5845; Frost,
Matthew/0000-0001-6821-170X
NR 0
TC 2
Z9 2
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012084
DI 10.1088/1742-6596/251/1/012084
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100084
ER
PT S
AU Granroth, GE
Kolesnikov, AI
Sherline, TE
Clancy, JP
Ross, KA
Ruff, JPC
Gaulin, BD
Nagler, SE
AF Granroth, G. E.
Kolesnikov, A. I.
Sherline, T. E.
Clancy, J. P.
Ross, K. A.
Ruff, J. P. C.
Gaulin, B. D.
Nagler, S. E.
GP IOP
TI SEQUOIA: A Newly Operating Chopper Spectrometer at the SNS
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
AB A fine resolution chopper spectrometer (SEQUOIA) recently received first neutrons at the SNS. The commissioning phase of the instrument is underway. SEQUOIA is designed to utilize neutrons of an incident energy (E(i)) between 10-2000 meV. A monochromatic beam is provided on a sample, 20 m from the decoupled ambient temperature H(2)O moderator, by filtering the white beam with a Fermi chopper located 18 m from the source. After interacting with the sample, neutrons are detected by an array of (3)He linear position sensitive tubes located on a vertical cylinder with a radius of 5.5 m. This contribution presents current results from the commissioning experiments and compares SEQUOIA's actual and predicted performance. These commissioning experiments include characterization of the beam by monitors, determination of the chopper phase offsets, and runs with V and C(4)H(2)I(2)S. The predicted performance is provided by analytical calculations and Monte Carlo simulations.
C1 [Granroth, G. E.; Kolesnikov, A. I.; Sherline, T. E.; Nagler, S. E.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA.
RP Granroth, GE (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA.
EM granrothge@ornl.gov
RI Granroth, Garrett/G-3576-2012; Nagler, Stephen/E-4908-2010; Kolesnikov,
Alexander/I-9015-2012
OI Granroth, Garrett/0000-0002-7583-8778; Nagler,
Stephen/0000-0002-7234-2339; Kolesnikov, Alexander/0000-0003-1940-4649
NR 9
TC 62
Z9 62
U1 1
U2 13
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012058
DI 10.1088/1742-6596/251/1/012058
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100058
ER
PT S
AU Lee, WT
Tong, X
Pierce, J
Fleenor, M
Ismaili, A
Robertson, JL
Chen, WC
Gentile, TR
Hailemariam, A
Goyette, R
Parizzi, A
Lauter, V
Klose, F
Kaiser, H
Lavelle, C
Baxter, DV
Jones, GL
Wexler, J
McCollum, L
AF Lee, W-T
Tong, X.
Pierce, J.
Fleenor, M.
Ismaili, A.
Robertson, J. L.
Chen, W. C.
Gentile, T. R.
Hailemariam, A.
Goyette, R.
Parizzi, A.
Lauter, V.
Klose, F.
Kaiser, H.
Lavelle, C.
Baxter, D. V.
Jones, G. L.
Wexler, J.
McCollum, L.
GP IOP
TI In-situ Polarized (3)He-Based Neutron Polarization Analyzer for SNS
Magnetism Reflectometer
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID SPIN FILTER
AB We report here the construction and neutron transmission test results of an in-situ polarized (3)He-based neutron polarization analyzer system for the Magnetism Reflectometer at the Spallation Neutron Source, Oak Ridge National Laboratory. The analyzer uses the Spin-Exchange Optical Pumping method to polarize the (3)He nuclei of a cell of (3)He gas. Polarized neutrons scattered from the sample are intercepted by the polarized (3)He gas which strongly absorbs neutrons in one spin-state while allowing most neutrons in the other spin-state to pass through. To maintain a stable analyzing efficiency during an experiment, the (3)He gas is continuously polarized in-situ on the instrument. Neutron transmission measurements showed that 73% (3)He polarization was reached in this setup.
C1 [Lee, W-T; Tong, X.; Pierce, J.; Fleenor, M.; Ismaili, A.; Robertson, J. L.; Hailemariam, A.; Goyette, R.; Parizzi, A.; Lauter, V.; McCollum, L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Lee, WT (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM leewt@ornl.gov
RI tong, Xin/C-4853-2012; Baxter, David /D-3769-2013
OI tong, Xin/0000-0001-6105-5345; Baxter, David /0000-0003-2812-0904
NR 9
TC 5
Z9 5
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012086
DI 10.1088/1742-6596/251/1/012086
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100086
ER
PT S
AU Lynch, V
Chen, ML
Cobb, J
Kohl, J
Miller, S
Speirs, D
Vazhkudai, S
AF Lynch, Vickie
Chen, Meili
Cobb, John
Kohl, Jim
Miller, Steve
Speirs, David
Vazhkudai, Sudharshan
GP IOP
TI Neutron Science TeraGrid Gateway
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
AB The unique contributions of the Neutron Science TeraGrid Gateway (NSTG) are the connection of national user facility instrument data sources to the integrated cyberinfrastructure of the National Science FoundationTeraGrid and the development of a neutron science gateway that allows neutron scientists to use TeraGrid resources to analyze their data, including comparison of experiment with simulation. The NSTG is working in close collaboration with the Spallation Neutron Source (SNS) at Oak Ridge as their principal facility partner. The SNS is a next-generation neutron source. It has completed construction at a cost of $1.4 billion and is ramping up operations. The SNS will provide an order of magnitude greater flux than any previous facility in the world and will be available to all of the nation's scientists, independent of funding source, on a peer-reviewed merit basis. With this new capability, the neutron science community is facing orders of magnitude larger data sets and is at a critical point for data analysis and simulation. There is a recognized need for new ways to manage and analyze data to optimize both beam time and scientific output. The TeraGrid is providing new capabilities in the gateway for simulations using McStas and a fitting service on distributed TeraGrid resources to improved turnaround. NSTG staff are also exploring replicating experimental data in archival storage. As part of the SNS partnership, the NSTG provides access to gateway support, cyberinfrastructure outreach, community development, and user support for the neutron science community. This community includes not only SNS staff and users but extends to all the major worldwide neutron scattering centers.
C1 [Lynch, Vickie; Chen, Meili; Cobb, John; Kohl, Jim; Miller, Steve; Speirs, David; Vazhkudai, Sudharshan] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Lynch, V (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA.
EM lynchve@ornl.gov
RI Lynch, Vickie/J-4647-2012
OI Lynch, Vickie/0000-0002-5836-7636
NR 8
TC 0
Z9 0
U1 0
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012097
DI 10.1088/1742-6596/251/1/012097
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100097
ER
PT S
AU Miller, SD
Geist, A
Herwig, KW
Peterson, PF
Reuter, MA
Ren, S
Bilheux, JC
Campbell, SI
Kohl, JA
Vazhkudai, SS
Cobb, JW
Lynch, VE
Chen, ML
Trater, JR
Smith, BC
Swain, T
Huang, J
Mikkelson, R
Mikkelson, D
Green, ML
AF Miller, Stephen D.
Geist, Al
Herwig, Kenneth W.
Peterson, Peter F.
Reuter, Michael A.
Ren, Shelly
Bilheux, Jean-Christophe
Campbell, Stuart I.
Kohl, James A.
Vazhkudai, Sudharshan S.
Cobb, John W.
Lynch, Vickie E.
Chen, Meili
Trater, James R.
Smith, Bradford C.
Swain, Tom (William)
Huang, Jian
Mikkelson, Ruth
Mikkelson, Dennis
Green, Mark L.
GP IOP
TI The SNS/HFIR Web Portal System - How Can it Help Me?
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
AB In a busy world, continuing with the status-quo, to do things the way we are already familiar, often seems to be the most efficient way to conduct our work. We look for the value-add to decide if investing in a new method is worth the effort. How shall we evaluate if we have reached this tipping point for change? For contemporary researchers, understanding the properties of the data is a good starting point. The new generation of neutron scattering instruments being built are higher resolution and produce one or more orders of magnitude larger data than the previous generation of instruments. For instance, we have grown out of being able to perform some important tasks with our laptops - the data are too big and the computations would simply take too long. These large datasets can be problematic as facility users now begin to grapple with many of the same issues faced by more established computing communities. These issues include data access, management, and movement, data format standards, distributed computing, and collaboration among others. The Neutron Science Portal has been architected, designed, and implemented to provide users with an easy-to-use interface for managing and processing data, while also keeping an eye on meeting modern cybersecurity requirements imposed on institutions. The cost of entry for users has been lowered by utilizing a web interface providing access to backend portal resources. Users can browse or search for data which they are allowed to see, data reduction applications can be run without having to load the software, sample activation calculations can be performed for SNS and HFIR beamlines, McStas simulations can be run on TeraGrid and ORNL computers, and advanced analysis applications such as those being produced by the DANSE project can be run. Behind the scenes is a "live cataloging" system which automatically catalogs and archives experiment data via the data management system, and provides proposal team members access to their experiment data. The complexity of data movement and utilizing distributed computing resources has been taken care on behalf of users. Collaboration is facilitated by providing users a read/writeable common area, shared across all experiment team members. To date, these shared areas are the fastest growing data spaces. The portal currently has over 370 registered users, almost 5TB of experiment and user data, approximately 660K files cataloged, and had almost 10,000 unique visits last year. Future directions for enhancing portal robustness include examining how to mirror data and portal services, better facilitation of collaborations via virtual organizations, enhancing disconnected service via "thick client" applications, and better inter-facility connectivity to support cross-cutting research. The portal has established itself in the SNS/HFIR user community, and the development team strives to continue to improve the quality of features and services provided in order to better serve the community.
C1 [Miller, Stephen D.; Geist, Al; Herwig, Kenneth W.; Peterson, Peter F.; Reuter, Michael A.; Ren, Shelly; Bilheux, Jean-Christophe; Campbell, Stuart I.; Kohl, James A.; Vazhkudai, Sudharshan S.; Cobb, John W.; Lynch, Vickie E.; Chen, Meili; Trater, James R.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Miller, SD (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA.
EM millersd@ornl.gov
RI Herwig, Kenneth/F-4787-2011; Lynch, Vickie/J-4647-2012; Peterson,
Peter/L-2496-2013; Campbell, Stuart/A-8485-2010; Bilheux,
Jean/A-2823-2016
OI Lynch, Vickie/0000-0002-5836-7636; Ren, Shelly/0000-0002-0311-624X;
Peterson, Peter/0000-0002-1353-0348; Campbell,
Stuart/0000-0001-7079-0878; Bilheux, Jean/0000-0003-2172-6487
NR 0
TC 1
Z9 1
U1 0
U2 14
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012096
DI 10.1088/1742-6596/251/1/012096
PG 6
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100096
ER
PT S
AU Mo, YM
Heller, WT
AF Mo, Yiming
Heller, William T.
GP IOP
TI SANS with contrast variation study of the bacteriorhodopsino-ctyl
glucoside complex
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID X-RAY-SCATTERING; PROTEIN-DETERGENT COMPLEXES; SMALL-ANGLE SCATTERING;
ANGSTROM RESOLUTION
AB Membrane proteins (MPs), which play vital roles in trans-membrane trafficking and signalling between cells and their external environment, comprise a major fraction of the expressed proteomes of many organisms. MP production for biophysical characterization requires detergents for extracting MPs from their native membrane and to solubilize the MP in solution for purification and study. In a proper detergent solution, the detergent-associated MPs retain their native fold and oligomerization state, key requirements for biophysical characterization and crystallization. SANS with contrast variation was performed to characterize BR in complex with OG to better understand the MP-detergent complex. Contrast variation makes it possible to not only probe the conformation of the entire structure but also investigate the conformation of the polypeptide chain within the BR-OG complex. The BR-OG SANS contrast variation series is not consistent with a compact structure, such as a trimeric BR complex surrounded by a belt of detergent. The data strongly suggest that the protein is partially unfolded through its association with the detergent micelles.
C1 [Heller, William T.] Oak Ridge Natl Lab, Ctr Struct Mol Biol, Oak Ridge, TN 37831 USA.
RP Heller, WT (reprint author), Oak Ridge Natl Lab, Ctr Struct Mol Biol, Oak Ridge, TN 37831 USA.
EM hellerwt@ornl.gov
NR 18
TC 0
Z9 0
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012042
DI 10.1088/1742-6596/251/1/012042
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100042
ER
PT S
AU Pierce, J
Crabb, DG
Tomanicek, S
Demarse, N
Maxwell, J
Mulholland, J
Zhao, JK
AF Pierce, J.
Crabb, D. G.
Tomanicek, S.
Demarse, N.
Maxwell, J.
Mulholland, J.
Zhao, J. K.
GP IOP
TI Dynamically polarized sample at the Spallation Neutron Source
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID NUCLEAR
AB We report on the progress of the Dynamically Polarized Sample at the Spallation Neutron Source. The SNS DPS is a collaborative project with the Univ. of Virginia constructed for the purpose of polarized neutron scattering and diffraction. The project aims at significantly enhancing the signal-to-noise ratio by utilizing the strong spin dependent scattering cross section of hydrogen. One of the areas that are expected to benefit from this project is neutron protein crystallography, where a 10 fold gain in diffraction intensity and 10 fold reduction in incoherent background are within reach. The first step of the SNS DPS project uses a simple one Kelvin refrigerator and a 5 Tesla magnet. Our final goal is to design and build optimized setups for instruments such as the neutron protein diffractometer at the SNS (MaNDi). A brief overview of the DPS project will be given.
C1 [Pierce, J.; Tomanicek, S.; Demarse, N.; Zhao, J. K.] Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA.
RP Pierce, J (reprint author), Oak Ridge Natl Lab, Neutron Scattering Sci Div, Oak Ridge, TN USA.
EM piercejj@ornl.gov
RI Zhao, Jinkui/B-7872-2013
OI Zhao, Jinkui/0000-0002-7756-1952
NR 3
TC 0
Z9 0
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012088
DI 10.1088/1742-6596/251/1/012088
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100088
ER
PT S
AU Sherline, TE
Solomon, L
Roberts, CK
Bruce, D
Gaulin, B
Granroth, GE
AF Sherline, T. E.
Solomon, L.
Roberts, C. K., II
Bruce, D.
Gaulin, B.
Granroth, G. E.
GP IOP
TI A low-temperature sample orienting device for single crystal
spectroscopy at the SNS
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
AB A low temperature sample orientation device providing three axes of rotation has been successfully built and is in testing for use on several spectrometers at the spallation neutron source (SNS). Sample rotation about the vertical (omega) axis of nearly 360 degrees and out of plane tilts (phi and nu) of from -3.4 degrees to 4.4 degrees and from -2.8 degrees to 3.5 degrees, respectively, are possible. An off-the-shelf closed cycle refrigerator (CCR) is mounted on a room temperature sealed rotary flange providing omega rotations of the sample. Out-of-plane tilts are made possible by piezoelectric actuated angular positioning devices mounted on the low temperature head of the CCR. Novel encoding devices based on magnetoresistive sensors have been developed to measure the tilt stage angles. This combination facilitates single crystal investigations from room temperature to 3.1 K. Commissioning experiments of the rotating CCR for both powder and single crystal samples have been performed on the ARCS spectrometer at the SNS. For the powder sample this device was used to continuously rotate the sample and thus average out any partial orientation of the powder. The powder rings observed in S(Q) are presented. For the single crystal sample, the rotation was used to probe different regions of momentum transfer (Q-space). Laue patterns obtained from a single crystal sample at two rotation angles are presented.
C1 [Sherline, T. E.; Solomon, L.; Roberts, C. K., II; Bruce, D.; Granroth, G. E.] Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN USA.
RP Sherline, TE (reprint author), Oak Ridge Natl Lab, Neutron Sci Directorate, Oak Ridge, TN USA.
EM sherlinete@ornl.gov
RI Granroth, Garrett/G-3576-2012; BL18, ARCS/A-3000-2012
OI Granroth, Garrett/0000-0002-7583-8778;
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012085
DI 10.1088/1742-6596/251/1/012085
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100085
ER
PT S
AU Tian, W
Li, JY
Li, HF
Lynn, JW
Zarestky, JL
Vaknin, D
AF Tian, Wei
Li, Jiying
Li, Haifeng
Lynn, Jeffrey W.
Zarestky, Jerel L.
Vaknin, David
GP IOP
TI Neutron Scattering Studies of LiCoPO(4) & LiMnPO(4)
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID LINIPO4
AB LiCoPO(4) (T(N) approximate to 21.8 K) & LiMnPO(4) (T(N) approximate to 34 K) are antiferromagnetic insulators exhibiting large magnetoelectric effects. We performed inelastic neutron scattering (INS) experiments to investigate the spin dynamics of these systems and analyzed the measured magnetic spectra by linear spin-wave theory, taking into account intra- and inter-plane nearest, next nearest neighbor magnetic exchange interactions and single ion anisotropy, The INS results indicate that the single ion anisotropy in LiCoPO(4) is comparable to the nearest-neighbor magnetic exchange interaction rendering Ising-type behavior of LiCoPO(4). Neutron diffraction studies of LiMnPO(4) in applied magnetic fields reveal a spin-flop transition at similar to 3.5 Tesla with characteristics of a second order phase transition.
C1 [Tian, Wei; Li, Haifeng; Zarestky, Jerel L.; Vaknin, David] Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Tian, W (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RI Li, Haifeng/F-9743-2013; Vaknin, David/B-3302-2009; Tian,
Wei/C-8604-2013
OI Vaknin, David/0000-0002-0899-9248; Tian, Wei/0000-0001-7735-3187
NR 20
TC 6
Z9 6
U1 1
U2 6
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012005
DI 10.1088/1742-6596/251/1/012005
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100005
ER
PT S
AU Tong, X
Pierce, J
Lee, WT
Fleenor, M
Chen, WC
Jones, GL
Robertson, JL
AF Tong, X.
Pierce, J.
Lee, W. T.
Fleenor, M.
Chen, W. C.
Jones, G. L.
Robertson, J. L.
GP IOP
TI Electrical heating for SEOP-based polarized He-3 system
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID NEUTRON SPIN FILTER
AB Development of neutron spin filters based on polarized He-3 is underway at Spallation Neutron Source (SNS). We report the progress of electrical heating tests in polarized He-3 based on Spin-Exchange Optical Pumping (SEOP) method. We first test the system performance based on electrical heating via non-inductance heating pads. We observe a contribution of 955 hours to the relaxation time T-1 from the heating pads. We then test the electrical heating SEOP pumping system at the SNS beamline Magnetic Reflectometer. We currently obtain 73% He-3 polarization in a cell with 820 cm(3) in volume.
C1 [Tong, X.; Pierce, J.; Lee, W. T.; Fleenor, M.; Robertson, J. L.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Tong, X (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM tongx@ornl.gov
RI tong, Xin/C-4853-2012
OI tong, Xin/0000-0001-6105-5345
NR 7
TC 3
Z9 3
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012087
DI 10.1088/1742-6596/251/1/012087
PG 5
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100087
ER
PT S
AU Walker, L
Luttrell, C
Solomon, L
Church, A
AF Walker, L.
Luttrell, C.
Solomon, L.
Church, A.
GP IOP
TI The development of a sapphire cell for neutron scattering experiments at
high temperature and high pressure
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
AB As designed, the sample cell has a total length of 93.75 mm, a minimum wall thickness of 12.5 mm, and a bore that is 5mm wide by 81.25 mm tall as shown in figure 1. To minimize pressure build up within the cell the sample bore was modified from a design with sharp corners to a design with 1.5 degree radius corners. To optimize the amount of sample in the beam, sapphire inserts were designed. These inserts provide annular gap sizes of 0.1 mm and 1 mm. Gap sizes, or sample thicknesses, will vary based on the strength of the neutron scattering from the sample and are required in order to minimize multiple scattering from the sample.
C1 [Walker, L.; Luttrell, C.; Solomon, L.; Church, A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Walker, L (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM walkerl@ornl.gov
NR 4
TC 0
Z9 0
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012091
DI 10.1088/1742-6596/251/1/012091
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100091
ER
PT S
AU Winn, BL
Robertson, JL
Iverson, EB
Selby, DL
AF Winn, B. L.
Robertson, J. L.
Iverson, E. B.
Selby, D. L.
GP IOP
TI Neutron Spectral Brightness of Cold Guide 4 at the High Flux Isotope
Reactor
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
AB The High Flux Isotope Reactor resumed operation in June of 2007 with a super-critical hydrogen cold source in horizontal beam tube 4. Cold guide 4 is a guide system designed to deliver neutrons from this source with a reasonable flux at wavelengths greater than 4 angstrom to several instruments, and includes a 15-m, 96-section, 4-channel bender. A time-of-flight spectrum with calibrated detector was recorded at port C of cold guide 4, and compared to McStas simulations, to generate a brightness spectrum.
C1 [Winn, B. L.] Brookhaven Natl Lab, Neutron Scattering Grp, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
RP Winn, BL (reprint author), Brookhaven Natl Lab, Neutron Scattering Grp, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA.
EM winnbl@ornl.gov
RI Winn, Barry/A-5065-2016;
OI Winn, Barry/0000-0001-6383-4318; Iverson, Erik /0000-0002-7920-705X
NR 4
TC 0
Z9 0
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012062
DI 10.1088/1742-6596/251/1/012062
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100062
ER
PT S
AU Winn, B
Shapiro, SM
Lashley, JC
Opeil, C
Ratcliff, W
AF Winn, Barry
Shapiro, S. M.
Lashley, Jason C.
Opeil, Cyril
Ratcliff, William
GP IOP
TI Structural Phase Transition in AuZn Alloys
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID SHAPE-MEMORY ALLOYS; NI46.8TI50FE3.2
AB Au(x)Zn(1-x) alloys undergo a shape memory martensitic transformation whose temperature and nature (continuous or discontinuous) is strongly composition dependent. Neutron diffraction experiments were performed on single crystals of x=50 and 52 to explore the structural changes occurring at the transition temperature. A transverse modulation with wavevector q(0)=(1/3,1/3,0) develops below the transition temperature, with no observable change in lattice parameter. However, the Bragg peak width shows a broadening suggesting an unresolved rhombohedral distortion similar to what has been observed in NiTi-Fe alloys.
C1 [Winn, Barry; Shapiro, S. M.] Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Winn, B (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.
EM winnbl@ornl.gov
RI Winn, Barry/A-5065-2016
OI Winn, Barry/0000-0001-6383-4318
NR 8
TC 1
Z9 1
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012027
DI 10.1088/1742-6596/251/1/012027
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100027
ER
PT S
AU Yi, Z
Nagao, M
Bossev, DP
AF Yi, Zheng
Nagao, Michihiro
Bossev, Dobrin P.
GP IOP
TI How lidocaine influence the bilayer thickness and bending elasticity of
biomembranes
SO INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on Neutron Scattering 2009
CY MAY 03-07, 2009
CL Knoxville, TN
ID ANESTHETIC-LIPID INTERACTION; LOCAL-ANESTHETICS; NEUTRON-SCATTERING;
MOLECULAR DETAILS; MEMBRANE; UNDULATIONS; CHANNELS; MODEL
AB We have studied how local anesthetics influence the structural and dynamical properties of model bio-membranes. The measurements of small-angle neutron scattering have been performed on 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) unilamellar vesicles with different concentrations of lidocaine in D2O to determine the bilayer thickness as a function of the lidocaine concentration. The neutron-spin echo spectroscopy (NSE) has been used to study the influence of lidocaine on the bending elasticity of DMPC bilayers in fluid crystal phase (L-alpha) and the ripple gel (P-beta') phase.
C1 [Yi, Zheng] Oak Ridge Natl Lab, UT ORNL Ctr Mol Biophys, Oak Ridge, TN 37831 USA.
RP Yi, Z (reprint author), Oak Ridge Natl Lab, UT ORNL Ctr Mol Biophys, Oak Ridge, TN 37831 USA.
EM zhyi@indiana.edu
RI Yi, Zheng/F-7539-2011
NR 23
TC 1
Z9 1
U1 1
U2 5
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 251
AR 012037
DI 10.1088/1742-6596/251/1/012037
PG 4
WC Biophysics; Instruments & Instrumentation; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Biophysics; Instruments & Instrumentation; Materials Science; Physics
GA BVN68
UT WOS:000291982100037
ER
PT S
AU Kukkadapu, RK
Qafoku, NP
Arey, BW
Resch, CT
Long, PE
AF Kukkadapu, Ravi K.
Qafoku, Nikolla P.
Arey, Bruce W.
Resch, Charles T.
Long, Philip E.
BE Muller, H
Reissner, M
Steiner, W
Wiesinger, G
TI Effect of extent of natural subsurface bioreduction on Fe-mineralogy of
subsurface sediments
SO INTERNATIONAL CONFERENCE ON THE APPLICATIONS OF THE MOSSBAUER EFFECT
(ICAME 2009)
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT International Conference on the Applications of the Mossbauer Effect
CY JUL 19-24, 2009
CL Vienna Univ Technol, Vienna, AUSTRIA
HO Vienna Univ Technol
ID URANIUM; BIOTRANSFORMATION; GROUNDWATER
AB Naturally bioreduced zones with considerable sorbed U were recently identified at a former U mining and processing site at Rifle, CO, USA. Most of the sorbed U appears to be associated with Fe minerals. Variably reduced sediment samples were analyzed by suite of techniques, primarily by room temperature Mossbauer spectroscopy. Fe-oxides of different types and crystallinity, and Fe(II)/Fe(III)-containing clays are dominant in all the sediments. The amounts of poorly crystalline Fe(III)-oxide, however, was lower in the reduced samples. In addition, framboidal pyrites with sorbed U were common in the highly reduced sediments. Overall, the information gained from this work may help develop design field strategies for immobilization and stabilization of U(VI) in contaminated subsurface environments.
C1 [Kukkadapu, Ravi K.; Qafoku, Nikolla P.; Arey, Bruce W.; Resch, Charles T.; Long, Philip E.] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Kukkadapu, RK (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM ravi.kukkadapu@pnl.gov
OI Qafoku, Nikolla P./0000-0002-3258-5379
NR 17
TC 5
Z9 5
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 217
AR 012047
DI 10.1088/1742-6596/217/1/012047
PG 8
WC Physics, Applied; Spectroscopy
SC Physics; Spectroscopy
GA BTK80
UT WOS:000287181700047
ER
PT S
AU Van Den Abeele, K
Ulrich, TJ
Le Bas, PY
Griffa, M
Anderson, BE
Guyer, RA
AF Van Den Abeele, Koen
Ulrich, T. J.
Le Bas, Pierre-Yves
Griffa, Michele
Anderson, Brian E.
Guyer, Robert A.
BE Garreton, LG
TI Vector Component Focusing in Elastic Solids using a Scalar Source in
Three Component Time Reversal
SO INTERNATIONAL CONGRESS ON ULTRASONICS, PROCEEDINGS
SE Physics Procedia
LA English
DT Proceedings Paper
CT International Congress on Ultrasonics
CY JAN 11-17, 2009
CL Univ Santiago Chile, Santiago, CHILE
HO Univ Santiago Chile
DE Time Reversal; imaging; focusing
AB This contribution provides fundamental support, and both experimental and numerical wave propagation results demonstrating the ability to use a scalar source, a three component detector and the reciprocal TR process to selectively focus different vector components, either individually or collectively. The principle is explained from an analytical point of view, and the numerical and experimental study demonstrates excellent temporal and spatial focalization. Applications of the selective vector component focusing can be found in damage imaging techniques using both linear or nonlinear ultrasonic waves.
C1 [Van Den Abeele, Koen] Katholieke Univ Leuven, Wave Propagat & Signal Proc Res Grp, Campus Kortrijk,E Sabbelaan 53, B-8500 Kortrijk, Belgium.
[Ulrich, T. J.; Le Bas, Pierre-Yves; Griffa, Michele; Anderson, Brian E.; Guyer, Robert A.] Los Alamos Natl Lab, EES 11, POB 1663, Los Alamos, NM 87545 USA.
RP Van Den Abeele, K (reprint author), Katholieke Univ Leuven, Wave Propagat & Signal Proc Res Grp, Campus Kortrijk,E Sabbelaan 53, B-8500 Kortrijk, Belgium.
EM koen.vandenabeele@kuleuven-kortrijk.be
FU Campaign; LDRD at Los Alamos National Laboratory; Koen Van Den Abeele;
European FP6 [AST-CT- 2003-502927]; Flemish Fund for Scientific Research
[G.0206.02, G.0554.06, G.0443.07]; Research Council of the Katholieke
Universiteit Leuven [OT/07/051]
FX This work is supported by Institutional Support (Campaign 8 and LDRD) at
the Los Alamos National Laboratory. Koen Van Den Abeele gratefully
acknowledges the support of the European FP6 Grant AERONEWS (AST-CT-
2003-502927), the Flemish Fund for Scientific Research (G.0206.02,
G.0554.06, G.0443.07), the Research Council of the Katholieke
Universiteit Leuven (OT/07/051, CIF1), and the institutional support of
the Los Alamos National Laboratory. The authors are grateful for
discussions with colleagues Paul Johnson and Carene Larmat on the topics
of Time Reversal and reciprocity.
NR 5
TC 1
Z9 1
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1875-3892
J9 PHYSCS PROC
PY 2010
VL 3
IS 1
BP 685
EP 689
DI 10.1016/j.phpro.2010.01.086
PG 5
WC Acoustics; Physics, Applied
SC Acoustics; Physics
GA BNZ15
UT WOS:000275913100098
ER
PT J
AU Wagner, GJ
Zhou, XW
Plimpton, SJ
AF Wagner, Gregory J.
Zhou, Xiaowang
Plimpton, Steven J.
TI EQUATION-FREE ACCELERATED SIMULATIONS OF THE MORPHOLOGICAL RELAXATION OF
CRYSTAL SURFACES
SO INTERNATIONAL JOURNAL FOR MULTISCALE COMPUTATIONAL ENGINEERING
LA English
DT Article
DE surface diffusion; kinetic Monte Carlo; equation-free; solid-on-solid
model
ID MULTISCALE COMPUTATION; INFREQUENT EVENTS; PROFILE EVOLUTION;
TIME-SCALE; DYNAMICS; DIFFUSION
AB A method for accelerating kinetic Monte Carlo simulations of solid surface morphology evolution, based on the equation-free projective integration (EFPI) technique, is developed and investigated. This method is demonstrated through application to the 1+1 dimensional solid-on-solid model for surface evolution. EFPI exploits the multiscale nature of a physics problem, using fine-scale simulations at short times to evolve coarse length scales over long times. The method requires identification of a set of coarse variables that parameterize the system, and it is found that the most obvious coarse variables for this problem, those related to the ensemble-averaged surface position, are inadequate for capturing the dynamics of the system. This is remedied by including among the coarse variables a statistical description of the fine scales in the problem, which in this case can be captured by a two-point correlation function. Projective integration allows speedup of the simulations, but if speed-up of more than a factor of around 3 is attempted the solution can become oscillatory or unstable. This is shown to be caused by the presence of both fast and slow components of the two-point correlation function, leading to the equivalent of a stiff system of equations that is hard to integrate. By fixing the fast components of the solution over each projection step, we are able to achieve speedups of a factor of 20 without oscillations, while maintaining accuracy.
C1 [Wagner, Gregory J.] Sandia Natl Labs, Livermore, CA USA.
Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Wagner, GJ (reprint author), Sandia Natl Labs, Livermore, CA USA.
EM gjwagne@sandia.gov
RI Wagner, Gregory/I-4377-2015
FU United States Department of Energy [DE-AC04-94AL85000]
FX Sandia is a multiprogram laboratory operated by Sandia Corporation, a
Lockheed Martin Company, for the United States Department of Energy
under contract DE-AC04-94AL85000. We are also grateful for helpful
discussions with Professor Yannis Kevrekidis, Professor Dong-bin Xiu,
Jonathan Zimmerman, Aidan Thompson, and Reese Jones.
NR 38
TC 2
Z9 2
U1 0
U2 2
PU BEGELL HOUSE INC
PI REDDING
PA 50 CROSS HIGHWAY, REDDING, CT 06896 USA
SN 1543-1649
J9 INT J MULTISCALE COM
JI Int. J. Multiscale Comput. Eng.
PY 2010
VL 8
IS 4
BP 423
EP 439
PG 17
WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary
Applications
SC Engineering; Mathematics
GA 676CZ
UT WOS:000283889000006
ER
PT J
AU Liu, WNN
Sun, X
Koeppel, B
Khaleel, M
AF Liu, Wenning N.
Sun, Xin
Koeppel, Brian
Khaleel, Mohammad
TI Experimental Study of the Aging and Self-Healing of the Glass/Ceramic
Sealant Used in SOFCs
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID OXIDE FUEL-CELLS; MICROSTRUCTURE
AB High operating temperatures of solid oxide fuel cells (SOFCs) require that the sealant must function at a high temperature between 600 degrees C and 900 degrees C and in the oxidizing and reducing environments of fuel and air. This paper describes tests to investigate the temporal evolution of the volume fraction of ceramic phases, the evolution of micro-damage, and the self-healing behavior of the glass-ceramic sealant used in SOFCs. It was found that after the initial sintering process, further crystallization of the glass-ceramic sealant does not stop, but slows down and reduces the residual glass content while boosting the ceramic crystalline content. Under a long-term operating environment, distinct fibrous and needle-like crystals in the amorphous phase disappeared, and smeared/diffused phase boundaries between the glass phase and ceramic phase were observed. Meanwhile, the micro-damage was induced by the cooling down process from the operating temperature to room temperature, which can potentially degrade the mechanical properties of the glass/ceramic sealant. The glass/ceramic sealant exhibited self-healing upon reheating to the SOFC operating temperature, which can restore the mechanical performance of the glass/ceramic sealant.
C1 [Liu, Wenning N.; Sun, Xin; Koeppel, Brian; Khaleel, Mohammad] Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Liu, WNN (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA.
EM wenning.liu@pnl.gov
OI khaleel, mohammad/0000-0001-7048-0749
FU U.S. Department of Energy [DE-AC05-76RL01830]
FX Pacific Northwest National Laboratory is operated by Battelle for the
U.S. Department of Energy under Contract DE-AC05-76RL01830.
NR 14
TC 12
Z9 12
U1 0
U2 7
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 1
BP 22
EP 29
DI 10.1111/j.1744-7402.2009.02417.x
PG 8
WC Materials Science, Ceramics
SC Materials Science
GA 540CY
UT WOS:000273309600003
ER
PT J
AU Li, YH
Jiang, YL
Wu, JW
Pineault, R
Gemmenn, R
Liu, XB
AF Li, Yihong
Jiang, Yinglu
Wu, Junwei
Pineault, Richard
Gemmenn, Randall
Liu, Xingbo
TI Effect of Electrical Current on Solid Oxide Fuel Cells Metallic
Interconnect Oxidation in Syngas
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID FE-CR ALLOY; SOFC INTERCONNECTS; BEHAVIOR; ATMOSPHERE; GRADIENT
AB Electrical current flow is one of the important factors influencing high-temperature oxidation of SOFC interconnects. To understand the effect of electric current on corrosion behavior, Crofer 22 APU and Haynes 230//SS430 clad coupons were exposed to a simulated coal syngas at 800 degrees C with a current density of 0.5 A/cm2, for 500 h. It was found that the scale formed on the positive side was thicker than that formed on the negative side. In particular, for Crofer 22 APU, the morphology of the scale formed on the positive side was whisker-like while the scale formed on the negative side was predominantly cubic-shaped crystals. For Haynes 230//SS430 clad sample, some grain-shaped crystals appeared on SS 430 (negative) side due to the breakaway oxidation.
C1 [Li, Yihong; Jiang, Yinglu; Wu, Junwei; Pineault, Richard; Gemmenn, Randall; Liu, Xingbo] Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Li, Yihong; Jiang, Yinglu; Wu, Junwei; Liu, Xingbo] W Virginia Univ, Dept Mech & Aerosp Engn, Morgantown, WV 26506 USA.
RP Li, YH (reprint author), Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26507 USA.
EM Xingbo.liu@mail.wvu.edu
NR 22
TC 10
Z9 10
U1 2
U2 16
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 1
BP 41
EP 48
DI 10.1111/j.1744-7402.2009.02430.x
PG 8
WC Materials Science, Ceramics
SC Materials Science
GA 540CY
UT WOS:000273309600005
ER
PT J
AU Byun, TS
Hunn, JD
Miller, JH
Snead, LL
Kim, JW
AF Byun, Thak Sang
Hunn, John D.
Miller, James H.
Snead, Lance L.
Kim, Jin Weon
TI Evaluation of Fracture Stress for the SiC Layer of TRISO-Coated Fuel
Particles Using a Modified Crush Test Method
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID STRENGTH; PERFORMANCE; COMPONENTS
AB Fracture stress data for the chemical vapor deposition SiC coatings of tri-isotropic carbon/silicon carbide-coated fuel particles were obtained using a newly developed testing and evaluation method, and their relationship with microstructure was investigated. A crush testing technique using a blanket foil at load-transferring contact has been developed for hemispherical shell SiC specimens based on finite element analysis results. The mean fracture stress varied with test material in the range of 330-650 MPa, and was linked to the combined characteristics of inner surface roughness and porosity.
C1 [Byun, Thak Sang; Hunn, John D.; Miller, James H.; Snead, Lance L.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Kim, Jin Weon] Chosun Univ, Dept Nucl Engn, Kwangju 501759, South Korea.
RP Byun, TS (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
EM byunts@ornl.gov
FU Office of Nuclear Energy Science and Technology, US Department of Energy
[DE-AC05-00OR22725]
FX This research was sponsored by the Office of Nuclear Energy Science and
Technology, US Department of Energy, under contract DE-AC05-00OR22725
with UT-Battelle, LLC. The authors especially thank the reviewers Drs.
Y. Katoh and Ozawa for their elaborate reviews and detailed comments.
The authors also thank Mr. I. Dunbar for preparing hemispherical shell
specimens from fuel particles.
NR 20
TC 10
Z9 10
U1 0
U2 4
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 3
BP 327
EP 337
DI 10.1111/j.1744-7402.2009.02462.x
PG 11
WC Materials Science, Ceramics
SC Materials Science
GA 591HW
UT WOS:000277291900006
ER
PT J
AU Alexander, CS
Reinhart, WD
Thornhill, TF
Chhabildas, LC
AF Alexander, C. Scott
Reinhart, William D.
Thornhill, Tom F.
Chhabildas, Lalit C.
TI Armor Options: A Comparison of the Dynamic Response of Materials in the
Aluminum Oxide-Aluminum Nitride Family
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID COORS AD995 ALUMINA; SHOCK COMPRESSION; RELEASE PROPERTIES; SAPPHIRE;
PHASE; OXYNITRIDE; STRENGTH; WAVE; GPA; SCATTERING
AB For armor applications, ceramic materials are often useful due to their high dynamic strength. In some instances, in addition to high strength, the armor must also be transparent, which significantly limits the choices of materials. Materials in the aluminum oxide-aluminum nitride family (including Al(2)O(3) and AlON) are both strong and transparent. Only the end compound AlN is opaque. In this paper, the dynamic response to shock loading is examined for these materials to better understand the material response. Despite the chemical similarities, significant differences exist in the shock response and will be discussed.
C1 [Alexander, C. Scott; Reinhart, William D.; Thornhill, Tom F.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Chhabildas, Lalit C.] USAF, Res Lab, Eglin, FL 32542 USA.
RP Alexander, CS (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM calexa@sandia.gov
FU United States Department of Energy's National Nuclear Security
Administration [DE-AC04-94AL85000]
FX Sandia is a multiprogram laboratory operated by Sandia Corporation, a
Lockheed Martin Company for the United States Department of Energy's
National Nuclear Security Administration under contract
DE-AC04-94AL85000.
NR 22
TC 2
Z9 2
U1 2
U2 9
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 587
EP 594
DI 10.1111/j.1744-7402.2010.02488.x
PG 8
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500004
ER
PT J
AU Leavy, RB
Brannon, RM
Strack, OE
AF Leavy, R. Brian
Brannon, Rebecca M.
Strack, O. Erik
TI The Use of Sphere Indentation Experiments to Characterize Ceramic Damage
Models
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID SILICON-CARBIDE; BORON-CARBIDE; PENETRATION; VELOCITIES; BEHAVIOR; KM/S
AB Sphere impact experiments are used to calibrate and validate ceramic models that include statistical variability and/or scale effects in strength and toughness parameters. These dynamic experiments supplement traditional characterization experiments such as tension, triaxial compression, Brazilian, and plate impact, which are commonly used for ceramic model calibration. The fractured ceramic specimens are analyzed using sectioning, X-ray computed tomography, microscopy, and other techniques. These experimental observations indicate that a predictive material model must incorporate a standard deviation in strength that varies with the nature of the loading. Methods of using the spherical indentation data to calibrate a statistical damage model are presented in which it is assumed that variability in strength is tied to microscale stress concentrations associated with microscale heterogeneity.
C1 [Leavy, R. Brian] USA, Res Lab, Aberdeen, MD 21005 USA.
[Brannon, Rebecca M.] Univ Utah, Salt Lake City, UT 84112 USA.
[Strack, O. Erik] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Leavy, RB (reprint author), USA, Res Lab, Aberdeen, MD 21005 USA.
EM Brian.Leavy@utah.edu
FU United States Department of Energy [DE-ALO4-04AL8500]
FX The authors thank the following individuals for their substantial
contributions to the work presented in this paper: David Bronowski, Bill
Bruchey, Jerry LaSalvia, Moo Lee, Dave MacKenzie, Herb Miller, Mike
Normandia, and John Rowe. Part of this work was performed at the Sandia
National Laboratories. Sandia is a multiprogram laboratory operated by
Sandia Corporation, a Lockheed Martin Company, for the United States
Department of Energy under contract no. DE-ALO4-04AL8500.
NR 53
TC 17
Z9 18
U1 1
U2 12
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 606
EP 615
DI 10.1111/j.1744-7402.2010.02487.x
PG 10
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500006
ER
PT J
AU Holmquist, TJ
Wereszczak, AA
AF Holmquist, Timothy J.
Wereszczak, Andrew A.
TI Using Hertzian Indentation to Understand the Strength and Ballistic
Resistance of Silicon Carbide
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
AB This article presents an initial evaluation of the usefulness of spherical or Hertzian indentation for the determination and/or validation of constitutive models and for a potential link to ballistic resistance (interface defeat). Recent advancements in producing more confident elevated stress levels in Hertzian indentation make the usefulness of this test much more feasible. There are very few experimental techniques that can produce the high stresses, strains, and pressures produced in Hertzian indentation tests. Additionally, they are also relatively simple, repeatable, timely, and inexpensive. There is still the disadvantage that the stresses, strains, and pressures are not explicit outputs of the experiments requiring the constitutive response to be inferred by performing computations and comparing the computed force-deflection results to the experiment. Preliminary results indicate that Hertzian indentation can be used to help define the constitutive response but it is still uncertain if it can be used to rank a ceramic's ability to produce interface defeat.
C1 [Holmquist, Timothy J.] SW Res Inst, Minneapolis, MN 55416 USA.
[Wereszczak, Andrew A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Holmquist, TJ (reprint author), SW Res Inst, Minneapolis, MN 55416 USA.
EM tholmquist@swri.org
RI Wereszczak, Andrew/I-7310-2016
OI Wereszczak, Andrew/0000-0002-8344-092X
FU U.S. Army Tank-Automotive Research, Development and Engineering Center
[DE-AC-00OR22725]
FX This work was supported by the Work For Others sponsor U.S. Army
Tank-Automotive Research, Development and Engineering Center, under
contract DE-AC-00OR22725 with UT-Battelle, LLC.
NR 8
TC 2
Z9 2
U1 0
U2 7
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 625
EP 634
DI 10.1111/j.1744-7402.2010.02540.x
PG 10
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500008
ER
PT J
AU Wereszczak, AA
Kirkland, TP
Strong, KT
Campbell, J
LaSalvia, JC
Miller, HT
AF Wereszczak, Andrew A.
Kirkland, Timothy P.
Strong, Kevin T., Jr.
Campbell, James
LaSalvia, Jerry C.
Miller, Herbert T.
TI Size-Scaling of Tensile Failure Stress in a Hot-Pressed Silicon Carbide
SO INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
LA English
DT Article
ID BRITTLE MATERIALS; HERTZIAN FRACTURE; COMPRESSION; INDENTER; TILES
AB Quasi-static Weibull strength-size scaling of hot-pressed silicon carbide is described. Two surface conditions (uniaxial ground and uniaxial ground followed by grit blasting) were explored. Strength test coupons sampled effective areas from the very small (4 x 10-3 mm2) to the very large (4 x 104 mm2). Equibiaxial flexure and Hertzian ring crack initiation were used for the strength tests, and characteristic strengths for several different specimen geometries were analyzed as a function of effective area. Characteristic strength was found to substantially increase with decreased effective area for both surface conditions. Weibull moduli of 9.4- and 11.7 well-represented strength-size scaling for the two ground conditions between an effective area range of 10-1 and 4 x 104 mm2. Machining damage was observed to be the dominant flaw type over this range. However, for effective areas < 10-1 mm2, the characteristic strength increased rapidly for both ground surface conditions as the effective area decreased, and one or more of the inherent assumptions behind the classical Weibull strength-size scaling were in violation in this range. The selections of a ceramic strength to account for ballistically induced tile deflection and expanding cavity modeling are considered in context with the measured strength-size scaling. The observed size-scaling is briefly discussed with reference to dynamic strength.
C1 [Wereszczak, Andrew A.; Kirkland, Timothy P.; Strong, Kevin T., Jr.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
[Campbell, James; LaSalvia, Jerry C.; Miller, Herbert T.] USA, Res Lab, Ceram & Transparent Mat Branch, Aberdeen Proving Ground, MD 21005 USA.
RP Wereszczak, AA (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
EM wereszczakaa@ornl.gov
RI Wereszczak, Andrew/I-7310-2016
OI Wereszczak, Andrew/0000-0002-8344-092X
FU U.S. Army Research Laboratory (USARL); U.S. Army Tank-Automotive
Research, Development and Engineering Center [DE-AC-00OR22725]; U.S.
Army Research, Development and Engineering Command-Tank-Automotive and
Armaments Command
FX Research sponsored by two sources: Work For Others sponsor U.S. Army
Research Laboratory (USARL) and the U.S. Army Tank-Automotive Research,
Development and Engineering Center, both under contract DE-AC-00OR22725
with UT-Battelle, LLC.; This submission was produced by a contractor of
the U.S. Government under contract DE-AC05-00OR22725 with the U.S.
Department of Energy.; Work performed with support by an appointment to
the Research Participation Program at the USARL administered by the Oak
Ridge Associated Universities through an interagency agreement between
the U.S. Department of Energy and the USARL.; The authors express
sincere appreciation to D. Templeton and F. Rickert of the U.S. Army
Research, Development and Engineering Command-Tank-Automotive and
Armaments Command for sponsoring much of this work. C. Johnson
(GE-retired) is thanked for Weibull distribution discussions. Lastly,
ORNL's P. Becher and H. Wang for reviewing the manuscript and for their
helpful comments.
NR 21
TC 3
Z9 3
U1 2
U2 12
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1546-542X
J9 INT J APPL CERAM TEC
JI Int. J. Appl. Ceram. Technol.
PY 2010
VL 7
IS 5
BP 635
EP 642
DI 10.1111/j.1744-7402.2010.02517.x
PG 8
WC Materials Science, Ceramics
SC Materials Science
GA 656GP
UT WOS:000282316500009
ER
PT J
AU Drury, CG
Guy, KP
Wenner, CA
AF Drury, Colin G.
Guy, Kathryn P.
Wenner, Caren A.
TI Outsourcing Aviation Maintenance: Human Factors Implications,
Specifically for Communications
SO INTERNATIONAL JOURNAL OF AVIATION PSYCHOLOGY
LA English
DT Article
ID DESIGN; ERROR; INSPECTION; TEXT
AB As part of the Federal Aviation Administration's response to the 1997 crash of ValuJet Flight 592, the potential for human errors unique to the aviation third-party repair station environment was investigated. Data collected at 5 U.S. and 1 foreign repair stations disclosed a number of opportunities for errors arising from the more complex interactions among the repair station, the airline customers, and the regulatory authority. Two quantitative studies gathered data to test for 1 expected problem: that of using multiple formats of procedure document. First, a repair station error database was analyzed and concluded that oinformationo (e.g., documentation) was a significant causal factor associated with specific error types. Second, although repair stations must switch frequently between the documentation systems of different airlines, a task card comprehension study did not find increased error rates from changing document formats. With 54 licensed mechanics, well-designed procedure documentation greatly reduced comprehension errors. Improved documentation by following human factors good practice is recommended as a strategy to mitigate error potential for the repair stations where work is outsourced.
C1 [Drury, Colin G.] SUNY Buffalo, Dept Ind & Syst Engn, Buffalo, NY 14260 USA.
[Guy, Kathryn P.] Lockheed Martin Syst Integrat, Owego, NY USA.
[Wenner, Caren A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Drury, CG (reprint author), SUNY Buffalo, Dept Ind & Syst Engn, 438 Bell Hall, Buffalo, NY 14260 USA.
EM drury@buffalo.edu
NR 41
TC 4
Z9 4
U1 1
U2 6
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1050-8414
J9 INT J AVIAT PSYCHOL
JI Int. J. Aviat. Psychol.
PY 2010
VL 20
IS 2
BP 124
EP 143
AR PII 920641368
DI 10.1080/10508411003617771
PG 20
WC Psychology, Applied
SC Psychology
GA 597JD
UT WOS:000277752100002
ER
PT J
AU Patil, DP
Parekh, BK
Klunder, EB
AF Patil, Datta P.
Parekh, B. K.
Klunder, Edgar B.
TI A Novel Approach for Improving Column Flotation of Fine and Coarse Coal
SO INTERNATIONAL JOURNAL OF COAL PREPARATION AND UTILIZATION
LA English
DT Article; Proceedings Paper
CT 16th International Coal Preparation Congress
CY APR 25-30, 2010
CL Lexington, KY
SP Coal Preparat Soc Amer
DE Coal; Flotation; Frothfeeding; Reflux
ID FOAM FRACTIONATION; FROTH; COLLECTION; PARTICLES
AB Froth flotation, applied to the separation of solid particulates, has been practiced commercially for a long time in the coal and mineral industries. The potential benefits of establishing a deep froth, especially in column flotation have been shown by a number of researchers and that includes demonstrating that the froth phase is much more efficient at mineral upgrading than is the pulp phase. This approach could be useful in where the particles have difficulty in reporting from pulp phase to froth phase. Hence, it is expected that introduction of particles into the froth phase will significantly improve the grade and recovery of particles. In this article, a novel way of operating a flotation column was implemented, and the results were compared to those when operating the same column in the conventional fashion. Tests were conducted with both fine and coarse coals. Feeding into the froth zone enhances bubble-particle contact as observed by a higher product yield of 79.4% compared to a conventional column flotation yield of 73.4%, both at about 9% product ash. It was also observed that the novel froth feed improved the recovery of coarse (+1mm) coal particles from 0.9wt% to 2.2wt% compared to the conventional way of feeding slurry to pulp. Similarly, recovery of 1x0.6mm particles improved from 4.6wt% to 8.3wt% at the same ash level. Positive results were also obtained by external reflux of a portion of the concentrate back into the top of the column. The potential to simultaneously achieve improvement in both recovery and grade can be explained by application of conventional mass transfer concepts, analogous to developments in two-phase foam fractionation.
C1 [Patil, Datta P.; Parekh, B. K.] Univ Kentucky, Ctr Appl Energy Res, Lexington, KY 40511 USA.
[Klunder, Edgar B.] Natl Energy Technol Lab, Pittsburgh, PA USA.
RP Patil, DP (reprint author), Univ Kentucky, Ctr Appl Energy Res, 3572 Iron Works Pike, Lexington, KY 40511 USA.
EM patil@caer.uky.edu
NR 15
TC 1
Z9 1
U1 0
U2 8
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1939-2699
J9 INT J COAL PREP UTIL
JI Int. J. Coal Prep. Util.
PY 2010
VL 30
IS 2-5
BP 173
EP 188
AR PII 925512098
DI 10.1080/19392699.2010.497106
PG 16
WC Energy & Fuels; Mining & Mineral Processing
SC Energy & Fuels; Mining & Mineral Processing
GA 636WR
UT WOS:000280775000008
ER
PT J
AU Krishnamoorthy, G
Sami, M
Orsino, S
Perera, A
Shahnam, M
Huckaby, ED
AF Krishnamoorthy, Gautham
Sami, Muhammad
Orsino, Stefano
Perera, Anura
Shahnam, Mehrdad
Huckaby, E. David
TI Radiation modelling in oxy-fuel combustion scenarios
SO INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS
LA English
DT Article
DE radiative heat transfer; oxy combustion; CFD; band models; coal
combustion
ID BLACKBODY DISTRIBUTION FUNCTION; SPECTRUM K-DISTRIBUTIONS; NARROW-BAND;
MIXTURES; GAS; CO2
AB Coal combustion was simulated in a lab-scale furnace and a full scale utility boiler at air-burn, oxy-combustion with dry- and wet-flue gas recycles. Good agreement was obtained between the numerical predictions and experimental measurements. The study confirmed that certain dry and wet recycle ratios imitate the temperature and heat transfer characteristics found in air combustion. The performances of five grey models to predict the radiative properties of gases in the simulations were examined. Emissivity correlations developed for purely CO2 media were not found to be suitable to predict the property at low H2O/CO2 ratios encountered during dry-recycle. Therefore, a new total emissivity correlation and a weighted-sum-of-grey-gases (WSGG) model were formulated to address the shortcomings and inaccuracies in existing grey gas models under oxy-firing. The new WSGG model with 4 band intervals was found to perform well in test cases that were representative of air- and oxy-firing conditions in boilers.
C1 [Krishnamoorthy, Gautham] Univ N Dakota, Dept Chem Engn, Grand Forks, ND 58202 USA.
[Sami, Muhammad] ANSYS Inc, Evanston, IL 60201 USA.
[Orsino, Stefano] ANSYS Inc, Lebanon, NH 03766 USA.
[Perera, Anura] Doosan Babcock Energy Ltd, Crawley RH10 1, England.
[Shahnam, Mehrdad; Huckaby, E. David] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Krishnamoorthy, G (reprint author), Univ N Dakota, Dept Chem Engn, POB 7101,Harrington Hall Room 323,241 Centennial, Grand Forks, ND 58202 USA.
EM gautham.krishnamoorthy@gmail.com
FU U.S. Department of Energy
FX The authors gratefully acknowledge the financial support of the U.S.
Department of Energy, Innovations for Existing Plants Program
administered at the National Energy Technology Laboratory.
NR 29
TC 20
Z9 20
U1 0
U2 21
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1061-8562
EI 1029-0257
J9 INT J COMPUT FLUID D
JI Int. J. Comput. Fluid Dyn.
PY 2010
VL 24
IS 3-4
BP 69
EP 82
AR PII 924175910
DI 10.1080/10618562.2010.485567
PG 14
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 623BP
UT WOS:000279712200001
ER
PT J
AU Cho, YC
Jayaraman, B
Viana, FAC
Haftka, RT
Shyy, W
AF Cho, Young-Chang
Jayaraman, Balaji
Viana, Felipe A. C.
Haftka, Raphael T.
Shyy, Wei
TI Surrogate modelling for characterising the performance of a dielectric
barrier discharge plasma actuator
SO INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS
LA English
DT Article
DE dielectric barrier discharge plasma actuator; dielectric constant;
polarity time ratio; frequency of the applied voltage; surrogate
modelling; Pareto front; global sensitivity analysis
ID ATMOSPHERIC-PRESSURE; SHAPE OPTIMIZATION; GLOW-DISCHARGES;
FLUID-DYNAMICS; FLOW-CONTROL; AERODYNAMICS; VALIDATION; MECHANISMS; AIR
AB The dielectric barrier discharge (DBD) plasma actuator offers promising opportunities for flow control because of its fast response and non-moving parts. In this work, surrogate modelling is adopted to better understand the impact of the materials and operational parameters on the actuator performance, and to provide an efficient approach for performance estimation. The DBD model based on 2-species helium chemistry engages three design variables: operating frequency, polarity (positive/negative) time ratio of the applied voltage and the dielectric constant of the insulator. Two objectives are identified: the net force generated and the power requirement. Multiple surrogate models are used, which identify two branches of the Pareto front with opposite net force direction and substantially different parametric sensitivities. Global sensitivity analysis indicates that the voltage frequency and polarity ratio are important in different regions of the design space, while the dielectric constant is always important.
C1 [Cho, Young-Chang; Shyy, Wei] Univ Michigan, Dept Aerosp Engn, Ann Arbor, MI 48109 USA.
[Jayaraman, Balaji] Los Alamos Natl Lab, Fluid Dynam Grp T 3, Los Alamos, NM USA.
[Viana, Felipe A. C.; Haftka, Raphael T.] Univ Florida, Dept Mech & Aerosp Engn, Gainesville, FL USA.
RP Cho, YC (reprint author), Univ Michigan, Dept Aerosp Engn, Ann Arbor, MI 48109 USA.
EM yccho@umich.edu
RI jayaraman, Balaji/K-6951-2012;
OI Shyy, Wei/0000-0001-6670-5394
FU AFRL
FX The present work is supported by the AFRL, under a collaborative centre
agreement.
NR 62
TC 2
Z9 2
U1 2
U2 13
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1061-8562
J9 INT J COMPUT FLUID D
JI Int. J. Comput. Fluid Dyn.
PY 2010
VL 24
IS 7
SI SI
BP 281
EP 301
AR PII 930040304
DI 10.1080/10618562.2010.521129
PG 21
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 685MQ
UT WOS:000284633200004
ER
PT J
AU Wang, YS
Li, ST
AF Wang, Yushun
Li, Shengtai
TI New schemes for the coupled nonlinear Schrodinger equation
SO INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS
LA English
DT Article
DE coupled nonlinear Schrodinger equation; multi-symplectic scheme;
Euler-box scheme; solitons
ID SYMPLECTIC INTEGRATION; PDES
AB In this paper, we present three new schemes for the coupled nonlinear Schrodinger equation. The three new schemes are multi-symplectic schemes that preserve the intrinsic geometry property of the equation. The three new schemes are also semi-explicit in the sense that they need not solve linear algebraic equations every time-step, which is usually the most expensive in numerical simulation of partial differential equations. Many numerical experiments on collisions of solitons are presented to show the efficiency of the new multi-symplectic schemes.
C1 [Wang, Yushun] Nanjing Normal Univ, Sch Math & Comp Sci, Nanjing, Peoples R China.
[Li, Shengtai] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Wang, YS (reprint author), Nanjing Normal Univ, Sch Math & Comp Sci, Nanjing, Peoples R China.
EM wangyushun@njnu.edu.cn
RI wang, yushun/A-6938-2015;
OI wang, yushun/0000-0001-9719-4144; wang, yushun/0000-0002-6200-220X; Li,
Shengtai/0000-0002-4142-3080
FU National Basic Research Program [2005CB321703]; Jiangsu NSF [BK2006725];
NSFC [10471067, 40405019]
FX The work was supported by National Basic Research Program under the
Grant 2005CB321703, Key Project of Jiangsu NSF (No. BK2006725) and NSFC
(No. 10471067 & 40405019).
NR 17
TC 10
Z9 11
U1 2
U2 5
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0020-7160
J9 INT J COMPUT MATH
JI Int. J. Comput. Math.
PY 2010
VL 87
IS 4
BP 775
EP 787
DI 10.1080/00207160802195985
PG 13
WC Mathematics, Applied
SC Mathematics
GA 572IU
UT WOS:000275825000007
ER
PT J
AU Gu, Y
Wu, QS
Rao, NSV
AF Gu, Yi
Wu, Qishi
Rao, Nageswara S. V.
TI Optimizing Cluster Heads for Energy Efficiency in Large-Scale
Heterogeneous Wireless Sensor Networks
SO INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS
LA English
DT Article
ID ALGORITHMS
AB Many complex sensor network applications require deploying a large number of inexpensive and small sensors in a vast geographical region to achieve quality through quantity. Hierarchical clustering is generally considered as an efficient and scalable way to facilitate the management and operation of such large-scale networks and minimize the total energy consumption for prolonged lifetime. Judicious selection of cluster heads for data integration and communication is critical to the success of applications based on hierarchical sensor networks organized as layered clusters. We investigate the problem of selecting sensor nodes in a predeployed sensor network to be the cluster heads to minimize the total energy needed for data gathering. We rigorously derive an analytical formula to optimize the number of cluster heads in sensor networks under uniform node distribution, and propose a Distance-based Crowdedness Clustering algorithm to determine the cluster heads in sensor networks under general node distribution. The results from an extensive set of experiments on a large number of simulated sensor networks illustrate the performance superiority of the proposed solution over the clustering schemes based on k-means algorithm.
C1 [Gu, Yi; Wu, Qishi] Univ Memphis, Dept Comp Sci, Memphis, TN 38152 USA.
[Rao, Nageswara S. V.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
RP Wu, QS (reprint author), Univ Memphis, Dept Comp Sci, Memphis, TN 38152 USA.
EM qishiwu@memphis.edu
OI Rao, Nageswara/0000-0002-3408-5941
FU National Science Foundation [CNS-0721980]; Oak Ridge National
Laboratory, US Department of Energy [PO 4000056349]; University of
Memphis
FX This research is sponsored by National Science Foundation under Grant
no. CNS-0721980 and Oak Ridge National Laboratory, US Department of
Energy, under contract no. PO 4000056349 with University of Memphis.
NR 27
TC 4
Z9 4
U1 0
U2 12
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1550-1477
J9 INT J DISTRIB SENS N
JI Int. J. Distrib. Sens. Netw.
PY 2010
AR 961591
DI 10.1155/2010/961591
PG 9
WC Computer Science, Information Systems; Telecommunications
SC Computer Science; Telecommunications
GA 707AA
UT WOS:000286257700001
ER
PT J
AU Gao, Z
Conklin, JC
Daw, CS
Chakravarthy, VK
AF Gao, Z.
Conklin, J. C.
Daw, C. S.
Chakravarthy, V. K.
TI A proposed methodology for estimating transient engine-out temperature
and emissions from steady-state maps
SO INTERNATIONAL JOURNAL OF ENGINE RESEARCH
LA English
DT Article
DE engine; emissions; transient; methodology; steady-state maps
AB Many vehicle systems simulations utilize engine maps constructed from steady-state dynamometer measurements to estimate exhaust temperature and emissions as functions of engine speed and load. Unfortunately, steady-state engine behaviour is often significantly different from actual behaviour under transient driving conditions. This is particularly true for vehicles that undergo repeated engine shutdown and restart (e.g. electric hybrids). The authors propose a methodology for estimating transient engine exhaust properties and fuel economy based on corrections to steady-state maps. The suggested methodology has been implemented in the Powertrain Systems Analysis Toolkit (PSAT) and this implementation is used to demonstrate good agreement with experimental measurements for both a light-duty diesel and a flex-fuel gasoline/ethanol engine. Specific procedures are also recommended for setting key parameters required by the proposed methodology and possible directions for further improvements are suggested.
C1 [Gao, Z.; Conklin, J. C.; Daw, C. S.; Chakravarthy, V. K.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Gao, Z (reprint author), Oak Ridge Natl Lab, POB 2008,MS6472, Oak Ridge, TN 37831 USA.
EM gaoz@ornl.gov
OI Gao, Zhiming/0000-0002-7139-7995
FU US Department of Energy; US Government [DE-AC05-00OR22725]
FX The authors would like to thank Lee Slezak and the US Department of
Energy for funding this research. Special appreciation goes to Brian
West, Dean Edwards, and Robert Wagner for providing experimental data
and engine maps. The authors are also grateful to Dean Edwards and
Charles Finney, at ORNL, who contributed helpful suggestions and
insights. Thanks are also owed to the reviewers for their time and
helpful comments.; This submission was sponsored by a contractor of the
US Government under contract DE-AC05-00OR22725 with the US Department of
Energy. The US Government retains, and the publisher, by accepting this
submission for publication, acknowledges that the US Government retains,
a non-exclusive, paid-up, irrevocable, worldwide license to publish or
reproduce the published form of this submission, or allow others to do
so, for US Government purposes.
NR 16
TC 23
Z9 24
U1 2
U2 7
PU PROFESSIONAL ENGINEERING PUBLISHING LTD
PI WESTMINISTER
PA 1 BIRDCAGE WALK, WESTMINISTER SW1H 9JJ, ENGLAND
SN 1468-0874
J9 INT J ENGINE RES
JI Int. J. Engine Res.
PY 2010
VL 11
IS 2
BP 137
EP 151
DI 10.1243/14680874JER05609
PG 15
WC Thermodynamics; Engineering, Mechanical; Transportation Science &
Technology
SC Thermodynamics; Engineering; Transportation
GA 595UK
UT WOS:000277638600005
ER
PT J
AU Wilson, DM
Bell, P
Jones, D
Hansen, L
AF Wilson, Denise M.
Bell, Philip
Jones, Diane
Hansen, Lisa
TI A Cross-Sectional Study of Belonging in Engineering Communities
SO INTERNATIONAL JOURNAL OF ENGINEERING EDUCATION
LA English
DT Article
DE belonging; psychological sense of community; affect; engagement;
identity
ID STUDENTS; ADOLESCENTS; MOTIVATION; SCHOOL
AB Few research efforts in engineering education study the impact of affect on student experience. However, a substantial number of interventions, research centers, and similar organized efforts seek to improve the strength and cohesiveness of the community in which the student spends a substantial part of his or her time. Belonging and the related affective sense of connection to community are viewed implicitly in these efforts as a positive attribute of the intervention, yet rarely are these improvements explicitly measured. This work reports the results of the sense of belonging (and community) of students within a variety of engineering education venues, using measures that have been previously validated in K-12 educational venues and whose validity is confirmed for the higher education, engineering populations studied herein. Differences between the local (immediate) community and the larger community to which the engineering student or faculty belongs have been analyzed in conjunction with the sense of belonging experienced by engineers in five academic venues including conferences, classrooms, and retreats. Overall, the results show that an engineering sense of belonging is highest in local (immediate) venues in which community building is part of the venue mission (along with transformative goals for engineering research education), but lowest in undergraduate engineering classrooms. The sense of belonging in the larger community to which the engineer belongs tends to be highest for faculty, then graduate students, then undergraduate students. Sense of belonging is also highly correlated to the psychological sense of community (PSC), technical competence, and feelings of being socially at ease. Faculty-student relatedness, a major player in student fulfillment, is less correlated to belonging but still (moderately) related.
C1 [Wilson, Denise M.; Bell, Philip; Jones, Diane] Univ Washington, Coll Educ, Seattle, WA 98195 USA.
[Hansen, Lisa] Sandia Natl Labs, Livermore, CA USA.
RP Wilson, DM (reprint author), Univ Washington, Coll Educ, Box 353600, Seattle, WA 98195 USA.
EM denisew@u.washington.edu
NR 29
TC 2
Z9 2
U1 1
U2 5
PU TEMPUS PUBLICATIONS
PI DURRUS, BANTRY
PA IJEE , ROSSMORE,, DURRUS, BANTRY, COUNTY CORK 00000, IRELAND
SN 0949-149X
J9 INT J ENG EDUC
JI Int. J. Eng. Educ
PY 2010
VL 26
IS 3
SI SI
BP 687
EP 698
PG 12
WC Education, Scientific Disciplines; Engineering, Multidisciplinary
SC Education & Educational Research; Engineering
GA 610UT
UT WOS:000278764400019
ER
PT J
AU Helton, JC
Johnson, JD
Oberkampf, WL
Sallaberry, CJ
AF Helton, Jon C.
Johnson, Jay D.
Oberkampf, William L.
Sallaberry, Cedric J.
TI Representation of analysis results involving aleatory and epistemic
uncertainty
SO INTERNATIONAL JOURNAL OF GENERAL SYSTEMS
LA English
DT Article
DE aleatory uncertainty; epistemic uncertainty; evidence theory; interval
analysis; possibility theory; probability theory
ID ENVIRONMENTAL RISK-ASSESSMENT; PREDICTOR SMOOTHING METHODS; 1996
PERFORMANCE ASSESSMENT; RADIOACTIVE-WASTE DISPOSAL; HIGHLY DEPENDABLE
SYSTEMS; SAMPLING-BASED METHODS; ISOLATION PILOT-PLANT; LEVEL
NUCLEAR-WASTE; LARGE-SCALE SYSTEMS; SENSITIVITY-ANALYSIS
AB Procedures are described for the representation of results in analyses that involve both aleatory uncertainty and epistemic uncertainty, with aleatory uncertainty deriving from an inherent randomness in the behaviour of the system under study and epistemic uncertainty deriving from a lack of knowledge about the appropriate values to use for quantities that are assumed to have fixed but poorly known values in the context of a specific study. Aleatory uncertainty is usually represented with probability and leads to cumulative distribution functions (CDFs) or complementary CDFs (CCDFs) for analysis results of interest. Several mathematical structures are available for the representation of epistemic uncertainty, including interval analysis, possibility theory, evidence theory and probability theory. In the presence of epistemic uncertainty, there is not a single CDF or CCDF for a given analysis result. Rather, there is a family of CDFs and a corresponding family of CCDFs that derive from epistemic uncertainty and have an uncertainty structure that derives from the particular uncertainty structure (e.g. interval analysis, possibility theory, evidence theory or probability theory) used to represent epistemic uncertainty. Graphical formats for the representation of epistemic uncertainty in families of CDFs and CCDFs are investigated and presented for the indicated characterisations of epistemic uncertainty.
C1 [Helton, Jon C.] Arizona State Univ, Dept Math & Stat, Tempe, AZ 85287 USA.
[Johnson, Jay D.] ProStat, Mesa, AZ 85204 USA.
[Oberkampf, William L.] Sandia Natl Labs, Validat & Uncertainty Quantificat Dept, Albuquerque, NM 87185 USA.
[Sallaberry, Cedric J.] Sandia Natl Labs, Total Syst Performance Assessment Dept, Albuquerque, NM 87185 USA.
RP Helton, JC (reprint author), Sandia Natl Labs, Dept 1545, MS 0748, Albuquerque, NM 87185 USA.
EM jchelto@sandia.gov
FU US Department of Energy [DE-AC04-94AL85000]
FX This work, performed at Sandia National Laboratories (SNL), which is a
multiprogramme laboratory operated by Sandia Corporation, a Lockheed
Martin Company, was for the US Department of Energy's National Nuclear
Security Administration under Contract No. DE-AC04-94AL85000. Review at
SNL was provided by Laura P. Swiler and Timothy G. Trucano. Editorial
support was provided by F. Puffer and J. Ripple of Tech Reps, a division
of Ktech Corporation.
NR 171
TC 29
Z9 31
U1 4
U2 24
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0308-1079
J9 INT J GEN SYST
JI Int. J. Gen. Syst.
PY 2010
VL 39
IS 6
BP 605
EP 646
AR PII 922565552
DI 10.1080/03081079.2010.486664
PG 42
WC Computer Science, Theory & Methods; Ergonomics
SC Computer Science; Engineering
GA 621WZ
UT WOS:000279618000002
ER
PT J
AU Peng, JH
Bi, HT
Sokhansanj, S
Lim, JC
Melin, S
AF Peng, J. H.
Bi, H. T.
Sokhansanj, S.
Lim, J. C.
Melin, S.
TI An Economical and Market Analysis of Canadian Wood Pellets
SO INTERNATIONAL JOURNAL OF GREEN ENERGY
LA English
DT Article
DE Cost analysis; Energy; Forecast; Market analysis; Torrefied wood
pellets; Wood pellets
AB This study systematically examined the current and future wood pellet market, estimated the cost of Canadian torrefied pellets, and compared the torrefied pellets with the conventional pellets on the basis of literature and industrial data. The results showed that the wood pellet industry has been gaining significant momentum due to the European bioenergy incentives and the rising oil and natural gas prices. With the new bioenergy incentives in USA, the future pellets market may shift to North America, and Canada can potentially become the largest pellet production centre, supported by the abundant wood residues and mountain pine beetle (MPB)-infested trees.
C1 [Peng, J. H.; Bi, H. T.; Sokhansanj, S.; Lim, J. C.] Univ British Columbia, Vancouver, BC V5Z 1M9, Canada.
[Sokhansanj, S.] Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
[Melin, S.] Delta Res Corp, Delta, BC, Canada.
RP Bi, HT (reprint author), Univ British Columbia, Vancouver, BC V5Z 1M9, Canada.
EM xbi@chbe.ubc.ca
NR 15
TC 19
Z9 19
U1 0
U2 3
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1543-5075
J9 INT J GREEN ENERGY
JI Int. J. Green Energy
PY 2010
VL 7
IS 2
BP 128
EP 142
AR PII 920911436
DI 10.1080/15435071003673518
PG 15
WC Thermodynamics; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels
SC Thermodynamics; Science & Technology - Other Topics; Energy & Fuels
GA 593PH
UT WOS:000277470900002
ER
PT J
AU Li, Y
Calisal, SM
AF Li, Ye
Calisal, Sander M.
TI Estimating Power Output from a Tidal Current Turbine Farm with
First-order Approximation of Hydrodynamic Interaction between Turbines
SO INTERNATIONAL JOURNAL OF GREEN ENERGY
LA English
DT Article
DE Linear unsteady foil theory; Tidal current turbine; Tidal current
turbine farm; Tidal energy
AB This article presents a numerical approach to estimate power output from a tidal current turbine farm with first-order approximation of hydrodynamic interactions between multiple turbines. An example study is conducted by using this approach to design a tidal current turbine farm in an ideal site with the objective of maximizing the power output of the farm by optimizing the turbine distribution in the site. The results suggest that the maximum power output of a farm can be significantly improved with the utilization of the constructive hydrodynamic interaction between turbines. Limitation of this approach is discussed at the end.
C1 [Li, Ye] Natl Renewable Energy Lab, Natl Wind Technol Ctr, Golden, CO 80401 USA.
[Calisal, Sander M.] Univ British Columbia, Dept Mech Engn, Naval Architecture & Offshore Engn Lab, Vancouver, BC V6T 1Z4, Canada.
[Calisal, Sander M.] Piri Reis Univ Turkey, Istanbul, Turkey.
RP Li, Y (reprint author), Natl Renewable Energy Lab, Natl Wind Technol Ctr, MS3811,1617 Cole Blvd, Golden, CO 80401 USA.
EM ye.li@nrel.gov
FU University of British Columbia; National Science and Engineering
Research Council; Society of Naval Architects and Marine Engineers;
Institution of Electronic and Electrical Engineers; American Society of
Mechanical Engineers; International Society of Ocean and Polar Engineers
FX The authors would like to thank the following agencies for providing
fellowships to Ye Li for conducting this research: the University of
British Columbia, National Science and Engineering Research Council,
Society of Naval Architects and Marine Engineers, Institution of
Electronic and Electrical Engineers, American Society of Mechanical
Engineers, and International Society of Ocean and Polar Engineers.
NR 34
TC 10
Z9 10
U1 2
U2 7
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1543-5075
J9 INT J GREEN ENERGY
JI Int. J. Green Energy
PY 2010
VL 7
IS 2
BP 153
EP 163
AR PII 920911597
DI 10.1080/15435071003673609
PG 11
WC Thermodynamics; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels
SC Thermodynamics; Science & Technology - Other Topics; Energy & Fuels
GA 593PH
UT WOS:000277470900004
ER
PT J
AU Greitzer, FL
Podmore, R
Robinson, M
Ey, P
AF Greitzer, Frank L.
Podmore, Robin
Robinson, Marck
Ey, Pamela
TI Naturalistic Decision Making for Power System Operators
SO INTERNATIONAL JOURNAL OF HUMAN-COMPUTER INTERACTION
LA English
DT Article
AB Investigations of large-scale outages in the North American interconnected electric system often attribute the causes to three t's: trees, training, and tools. To document and understand the mental processes used by expert operators when making critical decisions, a naturalistic decision making (ndm) model was developed. Transcripts of conversations were analyzed to reveal and assess ndm-based performance criteria. An item analysis indicated that the operators' situation awareness levels, mental models, and mental simulations can be mapped at different points in the training scenario. This may identify improved training methods or analytical/visualization tools. This study applies for the first time the concepts of recognition primed decision making, situation awareness levels, and cognitive task analysis to training of electric power system operators. The ndm approach provides a viable framework for systematic training management to accelerate learning in simulator-based training scenarios for power system operators and teams.
C1 [Greitzer, Frank L.] Pacific NW Natl Lab, Richland, WA 99354 USA.
[Podmore, Robin] Incremental Syst Corp, Issaquah, WA USA.
[Robinson, Marck] PowerData Corp, Issaquah, WA USA.
[Ey, Pamela] SOS Intl, Charlotte, NC USA.
RP Greitzer, FL (reprint author), Pacific NW Natl Lab, POB 999,MS K7-28, Richland, WA 99354 USA.
EM Frank.Greitzer@pnl.gov
FU Pacific Northwest National Laboratory [DE-AC05-76RL01830]; PNNL; Human
Factors for Situation Awareness in Power Grid Operations; Southwest
Power Pool; Incremental Systems Corporation; PowerData Corporation; SOS
Intl
FX This work was supported by the Pacific Northwest National Laboratory
operated for the U.S. Department of Energy by Battelle under Contract
DE-AC05-76RL01830. [Information Release No.: PNNL-SA-64674]. We thank
Ross Guttromson at PNNL, who made it possible for this collaboration
through an internally funded PNNL project, Human Factors for Situation
Awareness in Power Grid Operations. We acknowledge Doug Harrington for
encouraging us to apply the Recognition Primed Decision Model to power
grid human factors; Chuck Johansen, Senior Trainer with SOS Intl, for
motivating us to integrate concepts of the R/M Model; and Jeffrey Sill
for his contributions to testing and item analysis. We also thank our
other respective colleagues at PNNL, Southwest Power Pool, Incremental
Systems Corporation, PowerData Corporation, and SOS Intl for their
support, ideas, and discussions.
NR 21
TC 8
Z9 8
U1 1
U2 7
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 1044-7318
J9 INT J HUM-COMPUT INT
JI Int. J. Hum.-Comput. Interact.
PY 2010
VL 26
IS 2-3
BP 278
EP 291
AR PII 919688566
DI 10.1080/10447310903499070
PG 14
WC Computer Science, Cybernetics; Ergonomics
SC Computer Science; Engineering
GA 564NU
UT WOS:000275222600012
ER
PT J
AU Tomsia, AP
Carter, WC
AF Tomsia, Antoni P.
Carter, W. Craig
TI The 7th International Workshop on Interfaces: New Materials via
Interfacial Control
SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
LA English
DT Editorial Material
C1 [Tomsia, Antoni P.] Lawrence Berkeley Lab, Berkeley, CA USA.
[Carter, W. Craig] MIT, Cambridge, MA 02139 USA.
RP Tomsia, AP (reprint author), Lawrence Berkeley Lab, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU CARL HANSER VERLAG
PI MUNICH
PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY
SN 1862-5282
J9 INT J MATER RES
JI Int. J. Mater. Res.
PD JAN
PY 2010
VL 101
IS 1
BP 7
EP 7
PG 1
WC Metallurgy & Metallurgical Engineering
SC Metallurgy & Metallurgical Engineering
GA 555PH
UT WOS:000274524600001
ER
PT J
AU Petford-Long, AK
AF Petford-Long, Amanda K.
TI The role of interfaces in the behavior of magnetic tunnel junction
structures
SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
LA English
DT Article; Proceedings Paper
CT 7th International Workshop on Interfaces - New Materials Via Interfacial
Control
CY JUN 22-26, 2008
CL Santiago de Compostela, SPAIN
DE Interfaces; Tunnel junctions; Magnetic; Electron microscopy
ID TRANSMISSION ELECTRON-MICROSCOPY; 3-DIMENSIONAL ATOM-PROBE;
ROOM-TEMPERATURE; SPECIMEN PREPARATION; MAGNETORESISTANCE; BARRIERS;
FILMS; TEM
AB Magnetic tunnel junctions are nanoscale oxide heterostructures that exhibit the phenomenon of tunnel magnetoresistance. The transport and magnetic behavior of these structures depends critically on parameters such as the layer thickness and the roughness and chemical abruptness of the interfaces between the layers, which are nanometerscale in thickness. We have used high resolution electron microscopy, transmission electron microscopy chemical mapping and atom probe tomography to understand the microstructural origins of the magnetic and transport properties of magnetoresistive structures. We have also used in-situ transmission electron microscopy nanobiasing experiments to probe the local transport properties of magnetic tunnel junctions as a function of processing conditions.
C1 [Petford-Long, Amanda K.] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Petford-Long, AK (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Lemont, IL 60439 USA.
EM petford.long@anl.gov
RI Petford-Long, Amanda/P-6026-2014
OI Petford-Long, Amanda/0000-0002-3154-8090
NR 28
TC 0
Z9 0
U1 1
U2 4
PU CARL HANSER VERLAG
PI MUNICH
PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY
SN 1862-5282
J9 INT J MATER RES
JI Int. J. Mater. Res.
PD JAN
PY 2010
VL 101
IS 1
BP 16
EP 20
DI 10.3139/146.110255
PG 5
WC Metallurgy & Metallurgical Engineering
SC Metallurgy & Metallurgical Engineering
GA 555PH
UT WOS:000274524600003
ER
PT J
AU Varela, M
Gazquez, J
Lupini, AR
Luck, JT
Torija, MA
Sharma, M
Leighton, C
Biegalski, MD
Christen, HM
Murfitt, M
Dellby, N
Krivanek, O
Pennycook, SJ
AF Varela, Maria
Gazquez, Jaume
Lupini, Andy R.
Luck, Julia T.
Torija, Maria A.
Sharma, Manish
Leighton, Chris
Biegalski, Mike D.
Christen, Hans M.
Murfitt, Matt
Dellby, Niklas
Krivanek, Ondrej
Pennycook, Stephen J.
TI Applications of aberration corrected scanning transmission electron
microscopy and electron energy loss spectroscopy to thin oxide films and
interfaces
SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
LA English
DT Article; Proceedings Paper
CT 7th International Workshop on Interfaces - New Materials Via Interfacial
Control
CY JUN 22-26, 2008
CL Santiago de Compostela, SPAIN
DE Complex oxides; Thin films; Interfaces; Scanning transmission electron
microscopy; Electron energy loss spectroscopy
ID GRAIN-BOUNDARIES; RESOLUTION; HETEROSTRUCTURES; IMAGES; EELS
AB Aberration Correction in the scanning transmission electron microscope allows spatial resolutions of the order of one Angstrom to be routinely achieved. When combined with electron energy loss spectroscopy, it is possible to simultaneously map the structure, the chemistry and even the electronic properties of materials in one single experiment. Here we will apply these techniques to the characterization of thin films and interfaces based on complex oxides with the perovskite structure. The relatively large lattice parameter of these materials combined with the fact that most of them have absorption edges within the reach of the spectrometer optics makes these materials ideal for these experiments. We will show how it is possible to map the chemistry of interfaces atomic plane by atomic plane, including light elements Such as O. Applications to cobaltite and titanate thin films will be described.
C1 [Varela, Maria; Gazquez, Jaume; Lupini, Andy R.; Luck, Julia T.; Pennycook, Stephen J.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Torija, Maria A.; Sharma, Manish; Leighton, Chris] Univ Minnesota, Dpt Chem Engn & Mat Sci, Minneapolis, MN USA.
[Biegalski, Mike D.; Christen, Hans M.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA.
[Murfitt, Matt; Dellby, Niklas; Krivanek, Ondrej] Nion Co Kirkland, Seattle, WA USA.
RP Varela, M (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, POB 2008,BLDG 4515,MS 6071, Oak Ridge, TN 37831 USA.
EM mvarela@ornl.gov
RI Gazquez, Jaume/C-5334-2012; Varela, Maria/H-2648-2012; Christen,
Hans/H-6551-2013; Varela, Maria/E-2472-2014
OI Gazquez, Jaume/0000-0002-2561-328X; Christen, Hans/0000-0001-8187-7469;
Varela, Maria/0000-0002-6582-7004
NR 29
TC 1
Z9 1
U1 2
U2 17
PU CARL HANSER VERLAG
PI MUNICH
PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY
SN 1862-5282
J9 INT J MATER RES
JI Int. J. Mater. Res.
PD JAN
PY 2010
VL 101
IS 1
BP 21
EP 26
DI 10.3139/146.110244
PG 6
WC Metallurgy & Metallurgical Engineering
SC Metallurgy & Metallurgical Engineering
GA 555PH
UT WOS:000274524600004
ER
PT J
AU Yoshiya, M
Tanaka, I
Adachi, H
Cannon, RM
AF Yoshiya, Masato
Tanaka, Isao
Adachi, Hirohiko
Cannon, Rowland M.
TI Theoretical study on the structure and energetics of intergranular
glassy film in Si3N4-SiO2 ceramics
SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
LA English
DT Article; Proceedings Paper
CT 7th International Workshop on Interfaces - New Materials Via Interfacial
Control
CY JUN 22-26, 2008
CL Santiago de Compostela, SPAIN
DE Silicon nitride; Grain boundaries; Intergranular film; Segregation;
Atomistic simulation
ID SILICON-NITRIDE CERAMICS; MOLECULAR-DYNAMICS SIMULATIONS;
GRAIN-BOUNDARIES; POLYCRYSTALLINE CERAMICS; EQUILIBRIUM THICKNESS;
ATOMISTIC STRUCTURE; ENERGY; BICRYSTALS; ADDITIVES; CRYSTALS
AB Molecular dynamics simulations have been performed to investigate intergranular glassy film in Si3N4-SiO2 ceramics. A 90 degrees-twist grain boundary was employed as a representative random grain boundary and an amorphous structure of the intergranular glassy film was introduced in the calculations. It is found that the presence of the inter,granular glassy film at the grain boundary significantly decreases the number of dangling bonds at the interface originating from geometric strain due to misorientation of adjacent Si3N4 grains. Calculations with a several of thicknesses of the intergranular glassy film revealed that the excess energy significantly decreased with the increase in the thickness smaller than 7.0 angstrom, while further increase in the thickness did not contribute to a release in the geometric strain energy. Equilibrium thickness of the intergranular glassy film was estimated from the calculations. A new approach to estimated the equilibrium thickness is proposed. A possible explanation of the disparity between intergranular glassy film thicknesses of the intergranular glassy film measured by high-resolution electron microscopy and electron energy-loss spectroscopy is given in terms of ordering of atoms at the interface.
C1 [Yoshiya, Masato] Osaka Univ, Dept Adapt Machine Syst, Suita, Osaka 5650871, Japan.
[Yoshiya, Masato; Cannon, Rowland M.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
[Yoshiya, Masato; Tanaka, Isao; Adachi, Hirohiko] Kyoto Univ, Dept Mat Sci & Engn, Kyoto, Japan.
RP Yoshiya, M (reprint author), Osaka Univ, Dept Adapt Machine Syst, 2-1 Yamadaoka, Suita, Osaka 5650871, Japan.
EM yoshiya@ams.eng.osaka-u.ac.jp
RI Tanaka, Isao/B-5941-2009; Yoshiya, Masato/A-6155-2011
OI Yoshiya, Masato/0000-0003-2029-2525
NR 51
TC 5
Z9 5
U1 0
U2 8
PU CARL HANSER VERLAG
PI MUNICH
PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY
SN 1862-5282
J9 INT J MATER RES
JI Int. J. Mater. Res.
PD JAN
PY 2010
VL 101
IS 1
BP 57
EP 65
DI 10.3139/146.110240
PG 9
WC Metallurgy & Metallurgical Engineering
SC Metallurgy & Metallurgical Engineering
GA 555PH
UT WOS:000274524600008
ER
PT J
AU Gu, H
Tanaka, I
Cannon, RM
Pan, XQ
Ruhle, M
AF Gu, Hui
Tanaka, Isao
Cannon, Rowland M.
Pan, Xiaoqing
Ruehle, Manfred
TI Inter-granular glassy phases in the low-CaO-doped HIPed Si3N4 ceramics:
a review
SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
LA English
DT Article; Proceedings Paper
CT 7th International Workshop on Interfaces - New Materials Via Interfacial
Control
CY JUN 22-26, 2008
CL Santiago de Compostela, SPAIN
DE Silicon nitride (Si3N4); Inter-granular film (IGF); Phase separation;
Analytical electron microscopy (AEM); Electron energy-loss spectroscopy
(EELS)
ID INTERGRANULAR FILM THICKNESS; SILICON-NITRIDE CERAMICS; ENERGY-LOSS
SPECTROSCOPY; GRAIN-BOUNDARY FILMS; TIO2-DOPED ALPHA-AL2O3 CERAMICS;
ELECTRON-MICROSCOPY; CHEMISTRY; SEGREGATION; MICROSTRUCTURE; CARBIDE
AB This review outlines the essence of a progressive study on the glassy inter-granular film (IGF) in a model ceramic system, the low-CaO-doped HIPed high-purity Si3N4. This was initiated from the finding of a systematic variation of equilibrium IGF thickness following the dopant chemistry, manifesting its fundamental important to ceramic processing. By employing analytical transmission electron microscopy to measure the local chemistry in IGF, however, significant discrepancy was found between trends of local IGF chemistry and thickness. A stable IGF composition was revealed in this system, while a bi-level distribution of Ca segregation establishes a correspondence between the IGF structure and the surface crystallography. The detection of similar levels of nitrogen in IGF through the whole series further supports the presence of a rather stable IGF chemistry. After the saturation of dopants in the stable IGF. extra CaO was found to re-distribute in pockets by enrichment at tips, leading to a liquid phase separation with the Ca-rich phase wetting the entrance zone contacting IGF. The perspective for establishing a comprehensive correlation between the inter-granular phases and the bi-modal microstructure induced by faster growth of basal facets is briefly discussed to pave the way for future work.
C1 [Gu, Hui] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 2005, Peoples R China.
[Tanaka, Isao] Kyoto Univ, Dept Mat Sci & Engn, Kyoto, Japan.
[Cannon, Rowland M.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA USA.
[Pan, Xiaoqing] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA.
[Ruehle, Manfred] Max Planck Inst Met Res, D-70569 Stuttgart, Germany.
RP Gu, H (reprint author), Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Dingxi Rd 1295, Shanghai 2005, Peoples R China.
EM gu@mail.sic.ac.cn
RI Tanaka, Isao/B-5941-2009
NR 40
TC 4
Z9 4
U1 1
U2 13
PU CARL HANSER VERLAG
PI MUNICH
PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY
SN 1862-5282
J9 INT J MATER RES
JI Int. J. Mater. Res.
PD JAN
PY 2010
VL 101
IS 1
BP 66
EP 74
DI 10.3139/146.110242
PG 9
WC Metallurgy & Metallurgical Engineering
SC Metallurgy & Metallurgical Engineering
GA 555PH
UT WOS:000274524600009
ER
PT J
AU Sturm, S
Gulgun, MA
Richter, G
Morales, FM
Cannon, RM
Ruhle, M
AF Sturm, Saso
Gulgun, Mehmet A.
Richter, Gunther
Morales, Francisco M.
Cannon, Rowland M.
Ruehle, Manfred
TI The role of Si impurities in the transient dopant segregation and
precipitation in yttrium-doped alumina
SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
LA English
DT Article; Proceedings Paper
CT 7th International Workshop on Interfaces - New Materials Via Interfacial
Control
CY JUN 22-26, 2008
CL Santiago de Compostela, SPAIN
DE Precipitation; Grain boundary segregation; Interfaces; Abnormal grain
growth; Electron energy loss spectroscopy (EELS)
ID GRAIN-BOUNDARY SEGREGATION; ALPHA-ALUMINA; PHASE-EQUILIBRIA; CHEMISTRY;
GROWTH; MICROSTRUCTURE; TRANSITIONS; INTERFACES; MIGRATION; CERAMICS
AB Y-doped alumina was sintered at 1500 degrees C for 10 h under ultra-clean experimental conditions without experiencing any abnormal grain growth. The yttrium was fairly homogeneously distributed at the grain boundaries, with a mean value of (Gamma) over bar (Y) = 5.5 at nm(-2). The Y-Al-O precipitates in the clean, Y(2)O(3)-doped alumina specimen were the YAP (YAlO(3)) phase, whereas only the YAG (Y(3)Al(5)O(12)) phase was present in the Y(2)O(3)-doped alumina samples contaminated with SiO(2). The excess concentrations of Y and Si atoms at the grain boundaries that, at the same time, provoke the formation of structurally complex YAG precipitates and abnormal grain growth were both estimated to be at 4-5 at nm(-2). The compositions of the triple point pocket phases found in the region of the exaggeratedly grown alumina grains indicate the presence of alumino-silicate bulk liquids at the sintering temperature.
C1 [Sturm, Saso] Jozef Stefan Inst, Dept Nanostructured Mat, SI-1000 Ljubljana, Slovenia.
[Gulgun, Mehmet A.] Sabanci Univ, FENS, Istanbul, Turkey.
[Richter, Gunther; Ruehle, Manfred] Max Planck Inst Met Res, Stuttgart, Germany.
[Morales, Francisco M.] Univ Cadiz, Puerto Real, Spain.
[Cannon, Rowland M.] Univ Calif Berkeley, Lawrence Berkeley Lab, MSD, Berkeley, CA 94720 USA.
RP Sturm, S (reprint author), Jozef Stefan Inst, Dept Nanostructured Mat, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia.
EM saso.sturm@ijs.si
RI Richter, Gunther/F-6222-2011;
OI Sturm, Saso/0000-0003-0019-7491; Morales, Francisco
Miguel/0000-0002-8341-2478
NR 30
TC 0
Z9 0
U1 1
U2 7
PU CARL HANSER VERLAG
PI MUNICH
PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY
SN 1862-5282
J9 INT J MATER RES
JI Int. J. Mater. Res.
PD JAN
PY 2010
VL 101
IS 1
BP 95
EP 101
DI 10.3139/146.110258
PG 7
WC Metallurgy & Metallurgical Engineering
SC Metallurgy & Metallurgical Engineering
GA 555PH
UT WOS:000274524600013
ER
PT J
AU Miranda, M
Fernandez, A
Saiz, E
Tomsia, AP
Torrecillas, R
AF Miranda, Miriam
Fernandez, Adolfo
Saiz, Eduardo
Tomsia, Antoni P.
Torrecillas, Ramon
TI Application of new forming and sintering techniques to obtain
hydroxyapatite and beta-TCP nanostructured composites
SO INTERNATIONAL JOURNAL OF MATERIALS RESEARCH
LA English
DT Article; Proceedings Paper
CT 7th International Workshop on Interfaces - New Materials Via Interfacial
Control
CY JUN 22-26, 2008
CL Santiago de Compostela, SPAIN
DE Hydroxyapatite; beta-TCP; Robocasting; SPS; Bioceramics
ID CALCIUM-PHOSPHATE CERAMICS; TRICALCIUM-PHOSPHATE; BONE; FABRICATION;
SCAFFOLDS; INKS
AB Calcium phosphate based bioceramics have an important position in the bone substitutions field, because of their excellent biocompatibility, bioactivity and osteoconduction characteristics. To enhance the bone ingrowth between implants and natural bone a hydroxyapatite/beta-tricalcium phosphate (HA/beta-TCP) composite has been chosen. The composites were formed by the robocasting technique for being sintered in conventional furnace under air. The behaviour of the system HA/beta-TCP was Studied with the aim of employing the optimal conditions to sinter the samples formed by robocasting. The final composition in each sample was analyzed using X-ray diffraction and quantified by the Rietveld method. A powder Mixture with the same HA/beta-TCP composition was formed and sintered by another non-conventional technique: Spark plasma sintering. Finally, the phase compositions and microstructures obtained by both techniques were compared.
C1 [Miranda, Miriam; Fernandez, Adolfo; Torrecillas, Ramon] CSIC, CINN, Oviedo, Spain.
[Saiz, Eduardo; Tomsia, Antoni P.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Miranda, M (reprint author), CT Mat Met, Ctr Invest Nanomat & Nanotecnol, Parque Tecnol Asturias, Llanera 33428, Asturias, Spain.
EM m.miranda@cinn.es
RI Torrecillas, Ramon/G-7851-2011
OI Torrecillas, Ramon/0000-0003-3856-0217
NR 17
TC 6
Z9 6
U1 1
U2 6
PU CARL HANSER VERLAG
PI MUNICH
PA KOLBERGERSTRASSE 22, POSTFACH 86 04 20, D-81679 MUNICH, GERMANY
SN 1862-5282
J9 INT J MATER RES
JI Int. J. Mater. Res.
PD JAN
PY 2010
VL 101
IS 1
BP 117
EP 121
DI 10.3139/146.110247
PG 5
WC Metallurgy & Metallurgical Engineering
SC Metallurgy & Metallurgical Engineering
GA 555PH
UT WOS:000274524600017
ER
PT J
AU Wang, MR
Chen, Q
Kang, QJ
Pan, N
Ben-Naim, E
AF Wang, Moran
Chen, Qun
Kang, Qinjun
Pan, Ning
Ben-Naim, Eli
TI Nonlinear effective properties of unsaturated porous materials
SO INTERNATIONAL JOURNAL OF NONLINEAR SCIENCES AND NUMERICAL SIMULATION
LA English
DT Article
DE effective property; unsaturated porous media; phase interaction;
nonlinear response
ID EFFECTIVE THERMAL-CONDUCTIVITY; EFFECTIVE DIELECTRIC-CONSTANT;
HEAT-CONDUCTION; BOLTZMANN METHOD; ELEMENT METHOD; MEDIA; MICROCHANNELS;
SIMULATIONS; SATURATION; PREDICTION
AB We have investigated the nonlinear responses in terms of effective properties of unsaturated porous materials using a numerical framework. The multiphase microstructure is reconstructed through a random generation-growth method, and the transport governing equations are solved efficiently by a lattice Boltzmann model. After validation, the present framework is used to study the nonlinear behavior of thermal conductivity and electrical permittivity caused by the saturation degree and the phase interaction for multiphase materials. The results show that the effective thermal conductivity of unsaturated porous materials changes with the phase interaction ratio, while the effective permittivity decrease monotonously with the phase interaction. Mechanism analyses indicate that these nonlinear behaviors lie in the role of the liquid phase in the transport. For the thermal conductivity, the liquid phase plays a "bridge" function because its conductivity is between those of the solid and the gas. A better bridge network would enhance the overall effective thermal conductivity. However for the electrical permittivity, the liquid phase acts the leading force for transport and a more effective liquid phase connection will hence lead to a higher effective electrical permittivity of the multiphase system.
C1 [Wang, Moran; Kang, Qinjun] Los Alamos Natl Lab, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
[Wang, Moran; Ben-Naim, Eli] Los Alamos Natl Lab, Phys Condensed Matter & Complex Syst Grp, Los Alamos, NM 87545 USA.
[Wang, Moran; Ben-Naim, Eli] Los Alamos Natl Lab, Ctr Nonlinear Study, Los Alamos, NM 87545 USA.
[Chen, Qun] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China.
[Chen, Qun; Pan, Ning] Univ Calif Davis, Dept Biol & Agr Engn, Davis, CA 95616 USA.
[Pan, Ning] Donghua Univ, Ctr Phys Fibrous Soft Matters, Shanghai 200051, Peoples R China.
RP Wang, MR (reprint author), Los Alamos Natl Lab, Div Earth & Environm Sci, POB 1663, Los Alamos, NM 87545 USA.
EM mwang@lanl.gov
RI Wang, Moran/A-1150-2010; Pan, Ning/B-1315-2008
OI Pan, Ning/0000-0002-8772-2596
NR 31
TC 4
Z9 4
U1 0
U2 12
PU FREUND PUBLISHING HOUSE LTD
PI TEL AVIV
PA PO BOX 35010, TEL AVIV 61350, ISRAEL
SN 1565-1339
J9 INT J NONLIN SCI NUM
JI Int. J. Nonlinear Sci. Numer. Simul.
PD JAN
PY 2010
VL 11
IS 1
SI SI
BP 49
EP 56
PG 8
WC Engineering, Multidisciplinary; Mathematics, Applied; Mechanics;
Physics, Mathematical
SC Engineering; Mathematics; Mechanics; Physics
GA 572RB
UT WOS:000275849400007
ER
PT J
AU Salazar-Villalpando, MD
Cugini, A
Miller, AC
AF Salazar-Villalpando, Maria D.
Cugini, Anthony
Miller, Adam C.
TI Catalyst characterisation of Fe-doped-titanium dioxide
SO INTERNATIONAL JOURNAL OF OIL GAS AND COAL TECHNOLOGY
LA English
DT Article
DE iron-doped TiO2; X-Ray diffraction; XRD; Raman spectroscopy; scanning
electron microscope imaging; SEM; BET surface area; X-Ray photoelectron
spectroscopy; XPS; ultraviolet-visible diffuse reflectance spectroscopy;
UV-vis DRS
ID PHOTOCATALYTIC ACTIVITY; PARTIAL OXIDATION; TIO2 POWDERS; DEGRADATION;
NANOPARTICLES; PERFORMANCE; PYROLYSIS; METHANE; METAL
AB Fe (5 wt. %) doped TiO2 was synthesised using a hydrothermal method. This material was characterised by X-Ray diffraction (XRD), Raman spectroscopy, scanning electron microscope (SEM) imaging, BET surface area, X-Ray photoelectron spectroscopy (XPS) and ultraviolet-visible diffuse reflectance spectroscopy (UV-vis DRS). The BET surface area was 136 m(2)/g and crystal sizes of 1.6 microns. SEM results showed crystal structures that were regular and pyramidal in shape. This catalyst only showed anatase phase. This favoured phase could be due to iron ions inserted into the TiO2 lattice and forming Ti-O-Fe bonds. It was found that doping TiO2 with 5 wt. % Fe caused a red shift in the absorption of the material to the visible light range and there was an increased absorption in the ultraviolet-visible diffuse reflectance spectroscopy, in the 450-590 nm range. These characteristics are very favourable for the use of 'free' visible light in order to activate the Fe (5 wt. %) doped TiO2 photocatalyst. [Received: September 4, 2009; Accepted: November 30, 2009]
C1 [Salazar-Villalpando, Maria D.; Cugini, Anthony] US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
[Miller, Adam C.] W Virginia Univ, Dept Chem Engn, Morgantown, WV 26507 USA.
RP Salazar-Villalpando, MD (reprint author), US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
EM Anthony.cugini@netl.doe.gov; Maria.Salazar@netl.doe.gov;
adam.miller@or.netl.doe.gov
NR 26
TC 0
Z9 0
U1 3
U2 10
PU INDERSCIENCE ENTERPRISES LTD
PI GENEVA
PA WORLD TRADE CENTER BLDG, 29 ROUTE DE PRE-BOIS, CASE POSTALE 856, CH-1215
GENEVA, SWITZERLAND
SN 1753-3309
J9 INT J OIL GAS COAL T
JI Int. J. Oil Gas Coal Technol.
PY 2010
VL 3
IS 1
SI SI
BP 75
EP 87
PG 13
WC Energy & Fuels; Engineering, Chemical; Engineering, Petroleum
SC Energy & Fuels; Engineering
GA 828GM
UT WOS:000295489500006
ER
EF